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12 | |
13 | #include "TreeTransform.h" |
14 | #include "clang/AST/ASTConsumer.h" |
15 | #include "clang/AST/ASTContext.h" |
16 | #include "clang/AST/ASTLambda.h" |
17 | #include "clang/AST/ASTMutationListener.h" |
18 | #include "clang/AST/CXXInheritance.h" |
19 | #include "clang/AST/DeclObjC.h" |
20 | #include "clang/AST/DeclTemplate.h" |
21 | #include "clang/AST/EvaluatedExprVisitor.h" |
22 | #include "clang/AST/Expr.h" |
23 | #include "clang/AST/ExprCXX.h" |
24 | #include "clang/AST/ExprObjC.h" |
25 | #include "clang/AST/ExprOpenMP.h" |
26 | #include "clang/AST/RecursiveASTVisitor.h" |
27 | #include "clang/AST/TypeLoc.h" |
28 | #include "clang/Basic/FixedPoint.h" |
29 | #include "clang/Basic/PartialDiagnostic.h" |
30 | #include "clang/Basic/SourceManager.h" |
31 | #include "clang/Basic/TargetInfo.h" |
32 | #include "clang/Lex/LiteralSupport.h" |
33 | #include "clang/Lex/Preprocessor.h" |
34 | #include "clang/Sema/AnalysisBasedWarnings.h" |
35 | #include "clang/Sema/DeclSpec.h" |
36 | #include "clang/Sema/DelayedDiagnostic.h" |
37 | #include "clang/Sema/Designator.h" |
38 | #include "clang/Sema/Initialization.h" |
39 | #include "clang/Sema/Lookup.h" |
40 | #include "clang/Sema/Overload.h" |
41 | #include "clang/Sema/ParsedTemplate.h" |
42 | #include "clang/Sema/Scope.h" |
43 | #include "clang/Sema/ScopeInfo.h" |
44 | #include "clang/Sema/SemaFixItUtils.h" |
45 | #include "clang/Sema/SemaInternal.h" |
46 | #include "clang/Sema/Template.h" |
47 | #include "llvm/Support/ConvertUTF.h" |
48 | using namespace clang; |
49 | using namespace sema; |
50 | |
51 | |
52 | |
53 | bool Sema::CanUseDecl(NamedDecl *D, bool TreatUnavailableAsInvalid) { |
54 | |
55 | if (ParsingInitForAutoVars.count(D)) |
56 | return false; |
57 | |
58 | |
59 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
60 | if (FD->isDeleted()) |
61 | return false; |
62 | |
63 | |
64 | |
65 | if (getLangOpts().CPlusPlus14 && FD->getReturnType()->isUndeducedType() && |
66 | DeduceReturnType(FD, SourceLocation(), false)) |
67 | return false; |
68 | |
69 | |
70 | |
71 | if (TreatUnavailableAsInvalid && |
72 | isUnavailableAlignedAllocationFunction(*FD)) |
73 | return false; |
74 | } |
75 | |
76 | |
77 | if (TreatUnavailableAsInvalid && D->getAvailability() == AR_Unavailable && |
78 | cast<Decl>(CurContext)->getAvailability() != AR_Unavailable) |
79 | return false; |
80 | |
81 | return true; |
82 | } |
83 | |
84 | static void DiagnoseUnusedOfDecl(Sema &S, NamedDecl *D, SourceLocation Loc) { |
85 | |
86 | if (const auto *A = D->getAttr<UnusedAttr>()) { |
87 | |
88 | |
89 | if (A->getSemanticSpelling() != UnusedAttr::CXX11_maybe_unused && |
90 | A->getSemanticSpelling() != UnusedAttr::C2x_maybe_unused) { |
91 | const Decl *DC = cast_or_null<Decl>(S.getCurObjCLexicalContext()); |
92 | if (DC && !DC->hasAttr<UnusedAttr>()) |
93 | S.Diag(Loc, diag::warn_used_but_marked_unused) << D->getDeclName(); |
94 | } |
95 | } |
96 | } |
97 | |
98 | |
99 | void Sema::NoteDeletedFunction(FunctionDecl *Decl) { |
100 | isDeleted()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 100, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Decl->isDeleted()); |
101 | |
102 | CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(Decl); |
103 | |
104 | if (Method && Method->isDeleted() && Method->isDefaulted()) { |
105 | |
106 | if (!Method->isImplicit()) |
107 | Diag(Decl->getLocation(), diag::note_implicitly_deleted); |
108 | |
109 | |
110 | |
111 | CXXSpecialMember CSM = getSpecialMember(Method); |
112 | if (CSM != CXXInvalid) |
113 | ShouldDeleteSpecialMember(Method, CSM, nullptr, ); |
114 | |
115 | return; |
116 | } |
117 | |
118 | auto *Ctor = dyn_cast<CXXConstructorDecl>(Decl); |
119 | if (Ctor && Ctor->isInheritingConstructor()) |
120 | return NoteDeletedInheritingConstructor(Ctor); |
121 | |
122 | Diag(Decl->getLocation(), diag::note_availability_specified_here) |
123 | << Decl << 1; |
124 | } |
125 | |
126 | |
127 | |
128 | static bool hasAnyExplicitStorageClass(const FunctionDecl *D) { |
129 | for (auto I : D->redecls()) { |
130 | if (I->getStorageClass() != SC_None) |
131 | return true; |
132 | } |
133 | return false; |
134 | } |
135 | |
136 | |
137 | |
138 | |
139 | |
140 | |
141 | |
142 | |
143 | |
144 | static void diagnoseUseOfInternalDeclInInlineFunction(Sema &S, |
145 | const NamedDecl *D, |
146 | SourceLocation Loc) { |
147 | |
148 | |
149 | |
150 | if (S.getLangOpts().CPlusPlus) |
151 | return; |
152 | |
153 | |
154 | FunctionDecl *Current = S.getCurFunctionDecl(); |
155 | if (!Current) |
156 | return; |
157 | if (!Current->isInlined()) |
158 | return; |
159 | if (!Current->isExternallyVisible()) |
160 | return; |
161 | |
162 | |
163 | if (D->getFormalLinkage() != InternalLinkage) |
164 | return; |
165 | |
166 | |
167 | |
168 | |
169 | |
170 | |
171 | |
172 | |
173 | const FunctionDecl *UsedFn = dyn_cast<FunctionDecl>(D); |
174 | bool DowngradeWarning = S.getSourceManager().isInMainFile(Loc); |
175 | if (!DowngradeWarning && UsedFn) |
176 | DowngradeWarning = UsedFn->isInlined() || UsedFn->hasAttr<ConstAttr>(); |
177 | |
178 | S.Diag(Loc, DowngradeWarning ? diag::ext_internal_in_extern_inline_quiet |
179 | : diag::ext_internal_in_extern_inline) |
180 | << !UsedFn << D; |
181 | |
182 | S.MaybeSuggestAddingStaticToDecl(Current); |
183 | |
184 | S.Diag(D->getCanonicalDecl()->getLocation(), diag::note_entity_declared_at) |
185 | << D; |
186 | } |
187 | |
188 | void Sema::MaybeSuggestAddingStaticToDecl(const FunctionDecl *Cur) { |
189 | const FunctionDecl *First = Cur->getFirstDecl(); |
190 | |
191 | |
192 | if (!hasAnyExplicitStorageClass(First)) { |
193 | SourceLocation DeclBegin = First->getSourceRange().getBegin(); |
194 | Diag(DeclBegin, diag::note_convert_inline_to_static) |
195 | << Cur << FixItHint::CreateInsertion(DeclBegin, "static "); |
196 | } |
197 | } |
198 | |
199 | |
200 | |
201 | |
202 | |
203 | |
204 | |
205 | |
206 | |
207 | |
208 | |
209 | |
210 | |
211 | bool Sema::DiagnoseUseOfDecl(NamedDecl *D, ArrayRef<SourceLocation> Locs, |
212 | const ObjCInterfaceDecl *UnknownObjCClass, |
213 | bool ObjCPropertyAccess, |
214 | bool AvoidPartialAvailabilityChecks, |
215 | ObjCInterfaceDecl *ClassReceiver) { |
216 | SourceLocation Loc = Locs.front(); |
217 | if (getLangOpts().CPlusPlus && isa<FunctionDecl>(D)) { |
218 | |
219 | |
220 | auto Pos = SuppressedDiagnostics.find(D->getCanonicalDecl()); |
221 | if (Pos != SuppressedDiagnostics.end()) { |
222 | for (const PartialDiagnosticAt &Suppressed : Pos->second) |
223 | Diag(Suppressed.first, Suppressed.second); |
224 | |
225 | |
226 | |
227 | |
228 | |
229 | Pos->second.clear(); |
230 | } |
231 | |
232 | |
233 | |
234 | if (cast<FunctionDecl>(D)->isMain()) |
235 | Diag(Loc, diag::ext_main_used); |
236 | |
237 | diagnoseUnavailableAlignedAllocation(*cast<FunctionDecl>(D), Loc); |
238 | } |
239 | |
240 | |
241 | if (ParsingInitForAutoVars.count(D)) { |
242 | if (isa<BindingDecl>(D)) { |
243 | Diag(Loc, diag::err_binding_cannot_appear_in_own_initializer) |
244 | << D->getDeclName(); |
245 | } else { |
246 | Diag(Loc, diag::err_auto_variable_cannot_appear_in_own_initializer) |
247 | << D->getDeclName() << cast<VarDecl>(D)->getType(); |
248 | } |
249 | return true; |
250 | } |
251 | |
252 | |
253 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
254 | if (FD->isDeleted()) { |
255 | auto *Ctor = dyn_cast<CXXConstructorDecl>(FD); |
256 | if (Ctor && Ctor->isInheritingConstructor()) |
257 | Diag(Loc, diag::err_deleted_inherited_ctor_use) |
258 | << Ctor->getParent() |
259 | << Ctor->getInheritedConstructor().getConstructor()->getParent(); |
260 | else |
261 | Diag(Loc, diag::err_deleted_function_use); |
262 | NoteDeletedFunction(FD); |
263 | return true; |
264 | } |
265 | |
266 | |
267 | |
268 | if (getLangOpts().CPlusPlus14 && FD->getReturnType()->isUndeducedType() && |
269 | DeduceReturnType(FD, Loc)) |
270 | return true; |
271 | |
272 | if (getLangOpts().CUDA && !CheckCUDACall(Loc, FD)) |
273 | return true; |
274 | } |
275 | |
276 | if (auto *MD = dyn_cast<CXXMethodDecl>(D)) { |
277 | |
278 | if (MD->getParent()->isLambda() && |
279 | ((isa<CXXConstructorDecl>(MD) && |
280 | cast<CXXConstructorDecl>(MD)->isDefaultConstructor()) || |
281 | MD->isCopyAssignmentOperator() || MD->isMoveAssignmentOperator())) { |
282 | Diag(Loc, diag::warn_cxx17_compat_lambda_def_ctor_assign) |
283 | << !isa<CXXConstructorDecl>(MD); |
284 | } |
285 | } |
286 | |
287 | auto getReferencedObjCProp = [](const NamedDecl *D) -> |
288 | const ObjCPropertyDecl * { |
289 | if (const auto *MD = dyn_cast<ObjCMethodDecl>(D)) |
290 | return MD->findPropertyDecl(); |
291 | return nullptr; |
292 | }; |
293 | if (const ObjCPropertyDecl *ObjCPDecl = getReferencedObjCProp(D)) { |
294 | if (diagnoseArgIndependentDiagnoseIfAttrs(ObjCPDecl, Loc)) |
295 | return true; |
296 | } else if (diagnoseArgIndependentDiagnoseIfAttrs(D, Loc)) { |
297 | return true; |
298 | } |
299 | |
300 | |
301 | |
302 | |
303 | |
304 | auto *DRD = dyn_cast<OMPDeclareReductionDecl>(CurContext); |
305 | if (LangOpts.OpenMP && DRD && !CurContext->containsDecl(D) && |
306 | isa<VarDecl>(D)) { |
307 | Diag(Loc, diag::err_omp_wrong_var_in_declare_reduction) |
308 | << getCurFunction()->HasOMPDeclareReductionCombiner; |
309 | Diag(D->getLocation(), diag::note_entity_declared_at) << D; |
310 | return true; |
311 | } |
312 | |
313 | |
314 | |
315 | |
316 | |
317 | auto *DMD = dyn_cast<OMPDeclareMapperDecl>(CurContext); |
318 | if (LangOpts.OpenMP && DMD && !CurContext->containsDecl(D) && |
319 | isa<VarDecl>(D)) { |
320 | Diag(Loc, diag::err_omp_declare_mapper_wrong_var) |
321 | << DMD->getVarName().getAsString(); |
322 | Diag(D->getLocation(), diag::note_entity_declared_at) << D; |
323 | return true; |
324 | } |
325 | |
326 | DiagnoseAvailabilityOfDecl(D, Locs, UnknownObjCClass, ObjCPropertyAccess, |
327 | AvoidPartialAvailabilityChecks, ClassReceiver); |
328 | |
329 | DiagnoseUnusedOfDecl(*this, D, Loc); |
330 | |
331 | diagnoseUseOfInternalDeclInInlineFunction(*this, D, Loc); |
332 | |
333 | return false; |
334 | } |
335 | |
336 | |
337 | |
338 | |
339 | |
340 | void Sema::DiagnoseSentinelCalls(NamedDecl *D, SourceLocation Loc, |
341 | ArrayRef<Expr *> Args) { |
342 | const SentinelAttr *attr = D->getAttr<SentinelAttr>(); |
343 | if (!attr) |
344 | return; |
345 | |
346 | |
347 | unsigned numFormalParams; |
348 | |
349 | |
350 | |
351 | enum CalleeType { CT_Function, CT_Method, CT_Block } calleeType; |
352 | |
353 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { |
354 | numFormalParams = MD->param_size(); |
355 | calleeType = CT_Method; |
356 | } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
357 | numFormalParams = FD->param_size(); |
358 | calleeType = CT_Function; |
359 | } else if (isa<VarDecl>(D)) { |
360 | QualType type = cast<ValueDecl>(D)->getType(); |
361 | const FunctionType *fn = nullptr; |
362 | if (const PointerType *ptr = type->getAs<PointerType>()) { |
363 | fn = ptr->getPointeeType()->getAs<FunctionType>(); |
364 | if (!fn) return; |
365 | calleeType = CT_Function; |
366 | } else if (const BlockPointerType *ptr = type->getAs<BlockPointerType>()) { |
367 | fn = ptr->getPointeeType()->castAs<FunctionType>(); |
368 | calleeType = CT_Block; |
369 | } else { |
370 | return; |
371 | } |
372 | |
373 | if (const FunctionProtoType *proto = dyn_cast<FunctionProtoType>(fn)) { |
374 | numFormalParams = proto->getNumParams(); |
375 | } else { |
376 | numFormalParams = 0; |
377 | } |
378 | } else { |
379 | return; |
380 | } |
381 | |
382 | |
383 | |
384 | |
385 | |
386 | unsigned nullPos = attr->getNullPos(); |
387 | (0) . __assert_fail ("(nullPos == 0 || nullPos == 1) && \"invalid null position on sentinel\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 387, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((nullPos == 0 || nullPos == 1) && "invalid null position on sentinel"); |
388 | numFormalParams = (nullPos > numFormalParams ? 0 : numFormalParams - nullPos); |
389 | |
390 | |
391 | unsigned numArgsAfterSentinel = attr->getSentinel(); |
392 | |
393 | |
394 | |
395 | if (Args.size() < numFormalParams + numArgsAfterSentinel + 1) { |
396 | Diag(Loc, diag::warn_not_enough_argument) << D->getDeclName(); |
397 | Diag(D->getLocation(), diag::note_sentinel_here) << int(calleeType); |
398 | return; |
399 | } |
400 | |
401 | |
402 | Expr *sentinelExpr = Args[Args.size() - numArgsAfterSentinel - 1]; |
403 | if (!sentinelExpr) return; |
404 | if (sentinelExpr->isValueDependent()) return; |
405 | if (Context.isSentinelNullExpr(sentinelExpr)) return; |
406 | |
407 | |
408 | |
409 | |
410 | |
411 | SourceLocation MissingNilLoc = getLocForEndOfToken(sentinelExpr->getEndLoc()); |
412 | std::string NullValue; |
413 | if (calleeType == CT_Method && PP.isMacroDefined("nil")) |
414 | NullValue = "nil"; |
415 | else if (getLangOpts().CPlusPlus11) |
416 | NullValue = "nullptr"; |
417 | else if (PP.isMacroDefined("NULL")) |
418 | NullValue = "NULL"; |
419 | else |
420 | NullValue = "(void*) 0"; |
421 | |
422 | if (MissingNilLoc.isInvalid()) |
423 | Diag(Loc, diag::warn_missing_sentinel) << int(calleeType); |
424 | else |
425 | Diag(MissingNilLoc, diag::warn_missing_sentinel) |
426 | << int(calleeType) |
427 | << FixItHint::CreateInsertion(MissingNilLoc, ", " + NullValue); |
428 | Diag(D->getLocation(), diag::note_sentinel_here) << int(calleeType); |
429 | } |
430 | |
431 | SourceRange Sema::getExprRange(Expr *E) const { |
432 | return E ? E->getSourceRange() : SourceRange(); |
433 | } |
434 | |
435 | |
436 | |
437 | |
438 | |
439 | |
440 | ExprResult Sema::DefaultFunctionArrayConversion(Expr *E, bool Diagnose) { |
441 | |
442 | if (E->getType()->isPlaceholderType()) { |
443 | ExprResult result = CheckPlaceholderExpr(E); |
444 | if (result.isInvalid()) return ExprError(); |
445 | E = result.get(); |
446 | } |
447 | |
448 | QualType Ty = E->getType(); |
449 | (0) . __assert_fail ("!Ty.isNull() && \"DefaultFunctionArrayConversion - missing type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 449, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Ty.isNull() && "DefaultFunctionArrayConversion - missing type"); |
450 | |
451 | if (Ty->isFunctionType()) { |
452 | if (auto *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParenCasts())) |
453 | if (auto *FD = dyn_cast<FunctionDecl>(DRE->getDecl())) |
454 | if (!checkAddressOfFunctionIsAvailable(FD, Diagnose, E->getExprLoc())) |
455 | return ExprError(); |
456 | |
457 | E = ImpCastExprToType(E, Context.getPointerType(Ty), |
458 | CK_FunctionToPointerDecay).get(); |
459 | } else if (Ty->isArrayType()) { |
460 | |
461 | |
462 | |
463 | |
464 | |
465 | |
466 | |
467 | |
468 | |
469 | |
470 | |
471 | if (getLangOpts().C99 || getLangOpts().CPlusPlus || E->isLValue()) |
472 | E = ImpCastExprToType(E, Context.getArrayDecayedType(Ty), |
473 | CK_ArrayToPointerDecay).get(); |
474 | } |
475 | return E; |
476 | } |
477 | |
478 | static void CheckForNullPointerDereference(Sema &S, Expr *E) { |
479 | |
480 | |
481 | |
482 | |
483 | |
484 | if (UnaryOperator *UO = dyn_cast<UnaryOperator>(E->IgnoreParenCasts())) |
485 | if (UO->getOpcode() == UO_Deref && |
486 | UO->getSubExpr()->IgnoreParenCasts()-> |
487 | isNullPointerConstant(S.Context, Expr::NPC_ValueDependentIsNotNull) && |
488 | !UO->getType().isVolatileQualified()) { |
489 | S.DiagRuntimeBehavior(UO->getOperatorLoc(), UO, |
490 | S.PDiag(diag::warn_indirection_through_null) |
491 | << UO->getSubExpr()->getSourceRange()); |
492 | S.DiagRuntimeBehavior(UO->getOperatorLoc(), UO, |
493 | S.PDiag(diag::note_indirection_through_null)); |
494 | } |
495 | } |
496 | |
497 | static void DiagnoseDirectIsaAccess(Sema &S, const ObjCIvarRefExpr *OIRE, |
498 | SourceLocation AssignLoc, |
499 | const Expr* RHS) { |
500 | const ObjCIvarDecl *IV = OIRE->getDecl(); |
501 | if (!IV) |
502 | return; |
503 | |
504 | DeclarationName MemberName = IV->getDeclName(); |
505 | IdentifierInfo *Member = MemberName.getAsIdentifierInfo(); |
506 | if (!Member || !Member->isStr("isa")) |
507 | return; |
508 | |
509 | const Expr *Base = OIRE->getBase(); |
510 | QualType BaseType = Base->getType(); |
511 | if (OIRE->isArrow()) |
512 | BaseType = BaseType->getPointeeType(); |
513 | if (const ObjCObjectType *OTy = BaseType->getAs<ObjCObjectType>()) |
514 | if (ObjCInterfaceDecl *IDecl = OTy->getInterface()) { |
515 | ObjCInterfaceDecl *ClassDeclared = nullptr; |
516 | ObjCIvarDecl *IV = IDecl->lookupInstanceVariable(Member, ClassDeclared); |
517 | if (!ClassDeclared->getSuperClass() |
518 | && (*ClassDeclared->ivar_begin()) == IV) { |
519 | if (RHS) { |
520 | NamedDecl *ObjectSetClass = |
521 | S.LookupSingleName(S.TUScope, |
522 | &S.Context.Idents.get("object_setClass"), |
523 | SourceLocation(), S.LookupOrdinaryName); |
524 | if (ObjectSetClass) { |
525 | SourceLocation RHSLocEnd = S.getLocForEndOfToken(RHS->getEndLoc()); |
526 | S.Diag(OIRE->getExprLoc(), diag::warn_objc_isa_assign) |
527 | << FixItHint::CreateInsertion(OIRE->getBeginLoc(), |
528 | "object_setClass(") |
529 | << FixItHint::CreateReplacement( |
530 | SourceRange(OIRE->getOpLoc(), AssignLoc), ",") |
531 | << FixItHint::CreateInsertion(RHSLocEnd, ")"); |
532 | } |
533 | else |
534 | S.Diag(OIRE->getLocation(), diag::warn_objc_isa_assign); |
535 | } else { |
536 | NamedDecl *ObjectGetClass = |
537 | S.LookupSingleName(S.TUScope, |
538 | &S.Context.Idents.get("object_getClass"), |
539 | SourceLocation(), S.LookupOrdinaryName); |
540 | if (ObjectGetClass) |
541 | S.Diag(OIRE->getExprLoc(), diag::warn_objc_isa_use) |
542 | << FixItHint::CreateInsertion(OIRE->getBeginLoc(), |
543 | "object_getClass(") |
544 | << FixItHint::CreateReplacement( |
545 | SourceRange(OIRE->getOpLoc(), OIRE->getEndLoc()), ")"); |
546 | else |
547 | S.Diag(OIRE->getLocation(), diag::warn_objc_isa_use); |
548 | } |
549 | S.Diag(IV->getLocation(), diag::note_ivar_decl); |
550 | } |
551 | } |
552 | } |
553 | |
554 | ExprResult Sema::DefaultLvalueConversion(Expr *E) { |
555 | |
556 | if (E->getType()->isPlaceholderType()) { |
557 | ExprResult result = CheckPlaceholderExpr(E); |
558 | if (result.isInvalid()) return ExprError(); |
559 | E = result.get(); |
560 | } |
561 | |
562 | |
563 | |
564 | |
565 | if (!E->isGLValue()) return E; |
566 | |
567 | QualType T = E->getType(); |
568 | (0) . __assert_fail ("!T.isNull() && \"r-value conversion on typeless expression?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 568, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!T.isNull() && "r-value conversion on typeless expression?"); |
569 | |
570 | |
571 | |
572 | if (getLangOpts().CPlusPlus && |
573 | (E->getType() == Context.OverloadTy || |
574 | T->isDependentType() || |
575 | T->isRecordType())) |
576 | return E; |
577 | |
578 | |
579 | |
580 | |
581 | |
582 | |
583 | if (T->isVoidType()) |
584 | return E; |
585 | |
586 | |
587 | if (getLangOpts().OpenCL && !getOpenCLOptions().isEnabled("cl_khr_fp16") && |
588 | T->isHalfType()) { |
589 | Diag(E->getExprLoc(), diag::err_opencl_half_load_store) |
590 | << 0 << T; |
591 | return ExprError(); |
592 | } |
593 | |
594 | CheckForNullPointerDereference(*this, E); |
595 | if (const ObjCIsaExpr *OISA = dyn_cast<ObjCIsaExpr>(E->IgnoreParenCasts())) { |
596 | NamedDecl *ObjectGetClass = LookupSingleName(TUScope, |
597 | &Context.Idents.get("object_getClass"), |
598 | SourceLocation(), LookupOrdinaryName); |
599 | if (ObjectGetClass) |
600 | Diag(E->getExprLoc(), diag::warn_objc_isa_use) |
601 | << FixItHint::CreateInsertion(OISA->getBeginLoc(), "object_getClass(") |
602 | << FixItHint::CreateReplacement( |
603 | SourceRange(OISA->getOpLoc(), OISA->getIsaMemberLoc()), ")"); |
604 | else |
605 | Diag(E->getExprLoc(), diag::warn_objc_isa_use); |
606 | } |
607 | else if (const ObjCIvarRefExpr *OIRE = |
608 | dyn_cast<ObjCIvarRefExpr>(E->IgnoreParenCasts())) |
609 | DiagnoseDirectIsaAccess(*this, OIRE, SourceLocation(), ); |
610 | |
611 | |
612 | |
613 | |
614 | |
615 | |
616 | |
617 | |
618 | |
619 | |
620 | if (T.hasQualifiers()) |
621 | T = T.getUnqualifiedType(); |
622 | |
623 | |
624 | if (T->isMemberPointerType() && |
625 | Context.getTargetInfo().getCXXABI().isMicrosoft()) |
626 | (void)isCompleteType(E->getExprLoc(), T); |
627 | |
628 | UpdateMarkingForLValueToRValue(E); |
629 | |
630 | |
631 | |
632 | if (E->getType().getObjCLifetime() == Qualifiers::OCL_Weak) |
633 | Cleanup.setExprNeedsCleanups(true); |
634 | |
635 | ExprResult Res = ImplicitCastExpr::Create(Context, T, CK_LValueToRValue, E, |
636 | nullptr, VK_RValue); |
637 | |
638 | |
639 | |
640 | |
641 | if (const AtomicType *Atomic = T->getAs<AtomicType>()) { |
642 | T = Atomic->getValueType().getUnqualifiedType(); |
643 | Res = ImplicitCastExpr::Create(Context, T, CK_AtomicToNonAtomic, Res.get(), |
644 | nullptr, VK_RValue); |
645 | } |
646 | |
647 | return Res; |
648 | } |
649 | |
650 | ExprResult Sema::DefaultFunctionArrayLvalueConversion(Expr *E, bool Diagnose) { |
651 | ExprResult Res = DefaultFunctionArrayConversion(E, Diagnose); |
652 | if (Res.isInvalid()) |
653 | return ExprError(); |
654 | Res = DefaultLvalueConversion(Res.get()); |
655 | if (Res.isInvalid()) |
656 | return ExprError(); |
657 | return Res; |
658 | } |
659 | |
660 | |
661 | |
662 | ExprResult Sema::CallExprUnaryConversions(Expr *E) { |
663 | QualType Ty = E->getType(); |
664 | ExprResult Res = E; |
665 | |
666 | |
667 | if (Ty->isFunctionType()) { |
668 | Res = ImpCastExprToType(E, Context.getPointerType(Ty), |
669 | CK_FunctionToPointerDecay).get(); |
670 | if (Res.isInvalid()) |
671 | return ExprError(); |
672 | } |
673 | Res = DefaultLvalueConversion(Res.get()); |
674 | if (Res.isInvalid()) |
675 | return ExprError(); |
676 | return Res.get(); |
677 | } |
678 | |
679 | |
680 | |
681 | |
682 | |
683 | |
684 | ExprResult Sema::UsualUnaryConversions(Expr *E) { |
685 | |
686 | ExprResult Res = DefaultFunctionArrayLvalueConversion(E); |
687 | if (Res.isInvalid()) |
688 | return ExprError(); |
689 | E = Res.get(); |
690 | |
691 | QualType Ty = E->getType(); |
692 | (0) . __assert_fail ("!Ty.isNull() && \"UsualUnaryConversions - missing type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 692, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Ty.isNull() && "UsualUnaryConversions - missing type"); |
693 | |
694 | |
695 | if (Ty->isHalfType() && !getLangOpts().NativeHalfType) |
696 | return ImpCastExprToType(Res.get(), Context.FloatTy, CK_FloatingCast); |
697 | |
698 | |
699 | |
700 | if (Ty->isIntegralOrUnscopedEnumerationType()) { |
701 | |
702 | |
703 | |
704 | |
705 | |
706 | |
707 | |
708 | |
709 | |
710 | |
711 | |
712 | |
713 | |
714 | |
715 | QualType PTy = Context.isPromotableBitField(E); |
716 | if (!PTy.isNull()) { |
717 | E = ImpCastExprToType(E, PTy, CK_IntegralCast).get(); |
718 | return E; |
719 | } |
720 | if (Ty->isPromotableIntegerType()) { |
721 | QualType PT = Context.getPromotedIntegerType(Ty); |
722 | E = ImpCastExprToType(E, PT, CK_IntegralCast).get(); |
723 | return E; |
724 | } |
725 | } |
726 | return E; |
727 | } |
728 | |
729 | |
730 | |
731 | |
732 | |
733 | ExprResult Sema::DefaultArgumentPromotion(Expr *E) { |
734 | QualType Ty = E->getType(); |
735 | (0) . __assert_fail ("!Ty.isNull() && \"DefaultArgumentPromotion - missing type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 735, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Ty.isNull() && "DefaultArgumentPromotion - missing type"); |
736 | |
737 | ExprResult Res = UsualUnaryConversions(E); |
738 | if (Res.isInvalid()) |
739 | return ExprError(); |
740 | E = Res.get(); |
741 | |
742 | |
743 | |
744 | |
745 | |
746 | const BuiltinType *BTy = Ty->getAs<BuiltinType>(); |
747 | if (BTy && (BTy->getKind() == BuiltinType::Half || |
748 | BTy->getKind() == BuiltinType::Float)) { |
749 | if (getLangOpts().OpenCL && |
750 | !getOpenCLOptions().isEnabled("cl_khr_fp64")) { |
751 | if (BTy->getKind() == BuiltinType::Half) { |
752 | E = ImpCastExprToType(E, Context.FloatTy, CK_FloatingCast).get(); |
753 | } |
754 | } else { |
755 | E = ImpCastExprToType(E, Context.DoubleTy, CK_FloatingCast).get(); |
756 | } |
757 | } |
758 | |
759 | |
760 | |
761 | |
762 | |
763 | |
764 | |
765 | |
766 | |
767 | |
768 | |
769 | |
770 | if (getLangOpts().CPlusPlus && E->isGLValue() && !isUnevaluatedContext()) { |
771 | ExprResult Temp = PerformCopyInitialization( |
772 | InitializedEntity::InitializeTemporary(E->getType()), |
773 | E->getExprLoc(), E); |
774 | if (Temp.isInvalid()) |
775 | return ExprError(); |
776 | E = Temp.get(); |
777 | } |
778 | |
779 | return E; |
780 | } |
781 | |
782 | |
783 | |
784 | |
785 | Sema::VarArgKind Sema::isValidVarArgType(const QualType &Ty) { |
786 | if (Ty->isIncompleteType()) { |
787 | |
788 | |
789 | |
790 | |
791 | |
792 | |
793 | |
794 | |
795 | if (Ty->isVoidType()) |
796 | return VAK_Invalid; |
797 | |
798 | if (Ty->isObjCObjectType()) |
799 | return VAK_Invalid; |
800 | return VAK_Valid; |
801 | } |
802 | |
803 | if (Ty.isDestructedType() == QualType::DK_nontrivial_c_struct) |
804 | return VAK_Invalid; |
805 | |
806 | if (Ty.isCXX98PODType(Context)) |
807 | return VAK_Valid; |
808 | |
809 | |
810 | |
811 | |
812 | |
813 | |
814 | if (getLangOpts().CPlusPlus11 && !Ty->isDependentType()) |
815 | if (CXXRecordDecl *Record = Ty->getAsCXXRecordDecl()) |
816 | if (!Record->hasNonTrivialCopyConstructor() && |
817 | !Record->hasNonTrivialMoveConstructor() && |
818 | !Record->hasNonTrivialDestructor()) |
819 | return VAK_ValidInCXX11; |
820 | |
821 | if (getLangOpts().ObjCAutoRefCount && Ty->isObjCLifetimeType()) |
822 | return VAK_Valid; |
823 | |
824 | if (Ty->isObjCObjectType()) |
825 | return VAK_Invalid; |
826 | |
827 | if (getLangOpts().MSVCCompat) |
828 | return VAK_MSVCUndefined; |
829 | |
830 | |
831 | |
832 | return VAK_Undefined; |
833 | } |
834 | |
835 | void Sema::checkVariadicArgument(const Expr *E, VariadicCallType CT) { |
836 | |
837 | const QualType &Ty = E->getType(); |
838 | VarArgKind VAK = isValidVarArgType(Ty); |
839 | |
840 | |
841 | switch (VAK) { |
842 | case VAK_ValidInCXX11: |
843 | DiagRuntimeBehavior( |
844 | E->getBeginLoc(), nullptr, |
845 | PDiag(diag::warn_cxx98_compat_pass_non_pod_arg_to_vararg) << Ty << CT); |
846 | LLVM_FALLTHROUGH; |
847 | case VAK_Valid: |
848 | if (Ty->isRecordType()) { |
849 | |
850 | |
851 | DiagRuntimeBehavior(E->getBeginLoc(), nullptr, |
852 | PDiag(diag::warn_pass_class_arg_to_vararg) |
853 | << Ty << CT << hasCStrMethod(E) << ".c_str()"); |
854 | } |
855 | break; |
856 | |
857 | case VAK_Undefined: |
858 | case VAK_MSVCUndefined: |
859 | DiagRuntimeBehavior(E->getBeginLoc(), nullptr, |
860 | PDiag(diag::warn_cannot_pass_non_pod_arg_to_vararg) |
861 | << getLangOpts().CPlusPlus11 << Ty << CT); |
862 | break; |
863 | |
864 | case VAK_Invalid: |
865 | if (Ty.isDestructedType() == QualType::DK_nontrivial_c_struct) |
866 | Diag(E->getBeginLoc(), |
867 | diag::err_cannot_pass_non_trivial_c_struct_to_vararg) |
868 | << Ty << CT; |
869 | else if (Ty->isObjCObjectType()) |
870 | DiagRuntimeBehavior(E->getBeginLoc(), nullptr, |
871 | PDiag(diag::err_cannot_pass_objc_interface_to_vararg) |
872 | << Ty << CT); |
873 | else |
874 | Diag(E->getBeginLoc(), diag::err_cannot_pass_to_vararg) |
875 | << isa<InitListExpr>(E) << Ty << CT; |
876 | break; |
877 | } |
878 | } |
879 | |
880 | |
881 | |
882 | ExprResult Sema::DefaultVariadicArgumentPromotion(Expr *E, VariadicCallType CT, |
883 | FunctionDecl *FDecl) { |
884 | if (const BuiltinType *PlaceholderTy = E->getType()->getAsPlaceholderType()) { |
885 | |
886 | if (PlaceholderTy->getKind() == BuiltinType::ARCUnbridgedCast && |
887 | (CT == VariadicMethod || |
888 | (FDecl && FDecl->hasAttr<CFAuditedTransferAttr>()))) { |
889 | E = stripARCUnbridgedCast(E); |
890 | |
891 | |
892 | } else { |
893 | ExprResult ExprRes = CheckPlaceholderExpr(E); |
894 | if (ExprRes.isInvalid()) |
895 | return ExprError(); |
896 | E = ExprRes.get(); |
897 | } |
898 | } |
899 | |
900 | ExprResult ExprRes = DefaultArgumentPromotion(E); |
901 | if (ExprRes.isInvalid()) |
902 | return ExprError(); |
903 | E = ExprRes.get(); |
904 | |
905 | |
906 | |
907 | if (isValidVarArgType(E->getType()) == VAK_Undefined) { |
908 | |
909 | CXXScopeSpec SS; |
910 | SourceLocation TemplateKWLoc; |
911 | UnqualifiedId Name; |
912 | Name.setIdentifier(PP.getIdentifierInfo("__builtin_trap"), |
913 | E->getBeginLoc()); |
914 | ExprResult TrapFn = ActOnIdExpression(TUScope, SS, TemplateKWLoc, Name, |
915 | , |
916 | ); |
917 | if (TrapFn.isInvalid()) |
918 | return ExprError(); |
919 | |
920 | ExprResult Call = ActOnCallExpr(TUScope, TrapFn.get(), E->getBeginLoc(), |
921 | None, E->getEndLoc()); |
922 | if (Call.isInvalid()) |
923 | return ExprError(); |
924 | |
925 | ExprResult Comma = |
926 | ActOnBinOp(TUScope, E->getBeginLoc(), tok::comma, Call.get(), E); |
927 | if (Comma.isInvalid()) |
928 | return ExprError(); |
929 | return Comma.get(); |
930 | } |
931 | |
932 | if (!getLangOpts().CPlusPlus && |
933 | RequireCompleteType(E->getExprLoc(), E->getType(), |
934 | diag::err_call_incomplete_argument)) |
935 | return ExprError(); |
936 | |
937 | return E; |
938 | } |
939 | |
940 | |
941 | |
942 | |
943 | |
944 | |
945 | static bool handleIntegerToComplexFloatConversion(Sema &S, ExprResult &IntExpr, |
946 | ExprResult &ComplexExpr, |
947 | QualType IntTy, |
948 | QualType ComplexTy, |
949 | bool SkipCast) { |
950 | if (IntTy->isComplexType() || IntTy->isRealFloatingType()) return true; |
951 | if (SkipCast) return false; |
952 | if (IntTy->isIntegerType()) { |
953 | QualType fpTy = cast<ComplexType>(ComplexTy)->getElementType(); |
954 | IntExpr = S.ImpCastExprToType(IntExpr.get(), fpTy, CK_IntegralToFloating); |
955 | IntExpr = S.ImpCastExprToType(IntExpr.get(), ComplexTy, |
956 | CK_FloatingRealToComplex); |
957 | } else { |
958 | isComplexIntegerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 958, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(IntTy->isComplexIntegerType()); |
959 | IntExpr = S.ImpCastExprToType(IntExpr.get(), ComplexTy, |
960 | CK_IntegralComplexToFloatingComplex); |
961 | } |
962 | return false; |
963 | } |
964 | |
965 | |
966 | |
967 | static QualType handleComplexFloatConversion(Sema &S, ExprResult &LHS, |
968 | ExprResult &RHS, QualType LHSType, |
969 | QualType RHSType, |
970 | bool IsCompAssign) { |
971 | |
972 | if (!handleIntegerToComplexFloatConversion(S, RHS, LHS, RHSType, LHSType, |
973 | )) |
974 | return LHSType; |
975 | if (!handleIntegerToComplexFloatConversion(S, LHS, RHS, LHSType, RHSType, |
976 | )) |
977 | return RHSType; |
978 | |
979 | |
980 | |
981 | |
982 | |
983 | |
984 | |
985 | |
986 | |
987 | |
988 | |
989 | |
990 | |
991 | int Order = S.Context.getFloatingTypeOrder(LHSType, RHSType); |
992 | |
993 | auto *LHSComplexType = dyn_cast<ComplexType>(LHSType); |
994 | auto *RHSComplexType = dyn_cast<ComplexType>(RHSType); |
995 | QualType LHSElementType = |
996 | LHSComplexType ? LHSComplexType->getElementType() : LHSType; |
997 | QualType RHSElementType = |
998 | RHSComplexType ? RHSComplexType->getElementType() : RHSType; |
999 | |
1000 | QualType ResultType = S.Context.getComplexType(LHSElementType); |
1001 | if (Order < 0) { |
1002 | |
1003 | ResultType = S.Context.getComplexType(RHSElementType); |
1004 | if (!IsCompAssign) { |
1005 | if (LHSComplexType) |
1006 | LHS = |
1007 | S.ImpCastExprToType(LHS.get(), ResultType, CK_FloatingComplexCast); |
1008 | else |
1009 | LHS = S.ImpCastExprToType(LHS.get(), RHSElementType, CK_FloatingCast); |
1010 | } |
1011 | } else if (Order > 0) { |
1012 | |
1013 | if (RHSComplexType) |
1014 | RHS = S.ImpCastExprToType(RHS.get(), ResultType, CK_FloatingComplexCast); |
1015 | else |
1016 | RHS = S.ImpCastExprToType(RHS.get(), LHSElementType, CK_FloatingCast); |
1017 | } |
1018 | return ResultType; |
1019 | } |
1020 | |
1021 | |
1022 | |
1023 | static QualType handleIntToFloatConversion(Sema &S, ExprResult &FloatExpr, |
1024 | ExprResult &IntExpr, |
1025 | QualType FloatTy, QualType IntTy, |
1026 | bool ConvertFloat, bool ConvertInt) { |
1027 | if (IntTy->isIntegerType()) { |
1028 | if (ConvertInt) |
1029 | |
1030 | IntExpr = S.ImpCastExprToType(IntExpr.get(), FloatTy, |
1031 | CK_IntegralToFloating); |
1032 | return FloatTy; |
1033 | } |
1034 | |
1035 | |
1036 | isComplexIntegerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1036, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(IntTy->isComplexIntegerType()); |
1037 | QualType result = S.Context.getComplexType(FloatTy); |
1038 | |
1039 | |
1040 | if (ConvertInt) |
1041 | IntExpr = S.ImpCastExprToType(IntExpr.get(), result, |
1042 | CK_IntegralComplexToFloatingComplex); |
1043 | |
1044 | |
1045 | if (ConvertFloat) |
1046 | FloatExpr = S.ImpCastExprToType(FloatExpr.get(), result, |
1047 | CK_FloatingRealToComplex); |
1048 | |
1049 | return result; |
1050 | } |
1051 | |
1052 | |
1053 | |
1054 | static QualType handleFloatConversion(Sema &S, ExprResult &LHS, |
1055 | ExprResult &RHS, QualType LHSType, |
1056 | QualType RHSType, bool IsCompAssign) { |
1057 | bool LHSFloat = LHSType->isRealFloatingType(); |
1058 | bool RHSFloat = RHSType->isRealFloatingType(); |
1059 | |
1060 | |
1061 | |
1062 | if (LHSFloat && RHSFloat) { |
1063 | int order = S.Context.getFloatingTypeOrder(LHSType, RHSType); |
1064 | if (order > 0) { |
1065 | RHS = S.ImpCastExprToType(RHS.get(), LHSType, CK_FloatingCast); |
1066 | return LHSType; |
1067 | } |
1068 | |
1069 | (0) . __assert_fail ("order < 0 && \"illegal float comparison\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1069, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(order < 0 && "illegal float comparison"); |
1070 | if (!IsCompAssign) |
1071 | LHS = S.ImpCastExprToType(LHS.get(), RHSType, CK_FloatingCast); |
1072 | return RHSType; |
1073 | } |
1074 | |
1075 | if (LHSFloat) { |
1076 | |
1077 | if (LHSType->isHalfType() && !S.getLangOpts().NativeHalfType) |
1078 | LHSType = S.Context.FloatTy; |
1079 | |
1080 | return handleIntToFloatConversion(S, LHS, RHS, LHSType, RHSType, |
1081 | !IsCompAssign, |
1082 | true); |
1083 | } |
1084 | assert(RHSFloat); |
1085 | return handleIntToFloatConversion(S, RHS, LHS, RHSType, LHSType, |
1086 | true, |
1087 | !IsCompAssign); |
1088 | } |
1089 | |
1090 | |
1091 | |
1092 | |
1093 | static bool unsupportedTypeConversion(const Sema &S, QualType LHSType, |
1094 | QualType RHSType) { |
1095 | |
1096 | |
1097 | |
1098 | if (!LHSType->isFloatingType() || !RHSType->isFloatingType() || |
1099 | S.Context.getFloatingTypeOrder(LHSType, RHSType) == 0) |
1100 | return false; |
1101 | |
1102 | (0) . __assert_fail ("LHSType->isFloatingType() && RHSType->isFloatingType() && \"The remaining types must be floating point types.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1103, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSType->isFloatingType() && RHSType->isFloatingType() && |
1103 | (0) . __assert_fail ("LHSType->isFloatingType() && RHSType->isFloatingType() && \"The remaining types must be floating point types.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1103, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "The remaining types must be floating point types."); |
1104 | |
1105 | auto *LHSComplex = LHSType->getAs<ComplexType>(); |
1106 | auto *RHSComplex = RHSType->getAs<ComplexType>(); |
1107 | |
1108 | QualType LHSElemType = LHSComplex ? |
1109 | LHSComplex->getElementType() : LHSType; |
1110 | QualType RHSElemType = RHSComplex ? |
1111 | RHSComplex->getElementType() : RHSType; |
1112 | |
1113 | |
1114 | if (&S.Context.getFloatTypeSemantics(LHSElemType) == |
1115 | &S.Context.getFloatTypeSemantics(RHSElemType)) |
1116 | return false; |
1117 | |
1118 | bool Float128AndLongDouble = (LHSElemType == S.Context.Float128Ty && |
1119 | RHSElemType == S.Context.LongDoubleTy); |
1120 | Float128AndLongDouble |= (LHSElemType == S.Context.LongDoubleTy && |
1121 | RHSElemType == S.Context.Float128Ty); |
1122 | |
1123 | |
1124 | |
1125 | |
1126 | return Float128AndLongDouble && |
1127 | (&S.Context.getFloatTypeSemantics(S.Context.LongDoubleTy) == |
1128 | &llvm::APFloat::PPCDoubleDouble()); |
1129 | } |
1130 | |
1131 | typedef ExprResult PerformCastFn(Sema &S, Expr *operand, QualType toType); |
1132 | |
1133 | namespace { |
1134 | |
1135 | |
1136 | ExprResult doIntegralCast(Sema &S, Expr *op, QualType toType) { |
1137 | return S.ImpCastExprToType(op, toType, CK_IntegralCast); |
1138 | } |
1139 | |
1140 | ExprResult doComplexIntegralCast(Sema &S, Expr *op, QualType toType) { |
1141 | return S.ImpCastExprToType(op, S.Context.getComplexType(toType), |
1142 | CK_IntegralComplexCast); |
1143 | } |
1144 | } |
1145 | |
1146 | |
1147 | |
1148 | template <PerformCastFn doLHSCast, PerformCastFn doRHSCast> |
1149 | static QualType handleIntegerConversion(Sema &S, ExprResult &LHS, |
1150 | ExprResult &RHS, QualType LHSType, |
1151 | QualType RHSType, bool IsCompAssign) { |
1152 | |
1153 | int order = S.Context.getIntegerTypeOrder(LHSType, RHSType); |
1154 | bool LHSSigned = LHSType->hasSignedIntegerRepresentation(); |
1155 | bool RHSSigned = RHSType->hasSignedIntegerRepresentation(); |
1156 | if (LHSSigned == RHSSigned) { |
1157 | |
1158 | if (order >= 0) { |
1159 | RHS = (*doRHSCast)(S, RHS.get(), LHSType); |
1160 | return LHSType; |
1161 | } else if (!IsCompAssign) |
1162 | LHS = (*doLHSCast)(S, LHS.get(), RHSType); |
1163 | return RHSType; |
1164 | } else if (order != (LHSSigned ? 1 : -1)) { |
1165 | |
1166 | |
1167 | if (RHSSigned) { |
1168 | RHS = (*doRHSCast)(S, RHS.get(), LHSType); |
1169 | return LHSType; |
1170 | } else if (!IsCompAssign) |
1171 | LHS = (*doLHSCast)(S, LHS.get(), RHSType); |
1172 | return RHSType; |
1173 | } else if (S.Context.getIntWidth(LHSType) != S.Context.getIntWidth(RHSType)) { |
1174 | |
1175 | |
1176 | |
1177 | if (LHSSigned) { |
1178 | RHS = (*doRHSCast)(S, RHS.get(), LHSType); |
1179 | return LHSType; |
1180 | } else if (!IsCompAssign) |
1181 | LHS = (*doLHSCast)(S, LHS.get(), RHSType); |
1182 | return RHSType; |
1183 | } else { |
1184 | |
1185 | |
1186 | |
1187 | |
1188 | QualType result = |
1189 | S.Context.getCorrespondingUnsignedType(LHSSigned ? LHSType : RHSType); |
1190 | RHS = (*doRHSCast)(S, RHS.get(), result); |
1191 | if (!IsCompAssign) |
1192 | LHS = (*doLHSCast)(S, LHS.get(), result); |
1193 | return result; |
1194 | } |
1195 | } |
1196 | |
1197 | |
1198 | |
1199 | static QualType handleComplexIntConversion(Sema &S, ExprResult &LHS, |
1200 | ExprResult &RHS, QualType LHSType, |
1201 | QualType RHSType, |
1202 | bool IsCompAssign) { |
1203 | const ComplexType *LHSComplexInt = LHSType->getAsComplexIntegerType(); |
1204 | const ComplexType *RHSComplexInt = RHSType->getAsComplexIntegerType(); |
1205 | |
1206 | if (LHSComplexInt && RHSComplexInt) { |
1207 | QualType LHSEltType = LHSComplexInt->getElementType(); |
1208 | QualType RHSEltType = RHSComplexInt->getElementType(); |
1209 | QualType ScalarType = |
1210 | handleIntegerConversion<doComplexIntegralCast, doComplexIntegralCast> |
1211 | (S, LHS, RHS, LHSEltType, RHSEltType, IsCompAssign); |
1212 | |
1213 | return S.Context.getComplexType(ScalarType); |
1214 | } |
1215 | |
1216 | if (LHSComplexInt) { |
1217 | QualType LHSEltType = LHSComplexInt->getElementType(); |
1218 | QualType ScalarType = |
1219 | handleIntegerConversion<doComplexIntegralCast, doIntegralCast> |
1220 | (S, LHS, RHS, LHSEltType, RHSType, IsCompAssign); |
1221 | QualType ComplexType = S.Context.getComplexType(ScalarType); |
1222 | RHS = S.ImpCastExprToType(RHS.get(), ComplexType, |
1223 | CK_IntegralRealToComplex); |
1224 | |
1225 | return ComplexType; |
1226 | } |
1227 | |
1228 | assert(RHSComplexInt); |
1229 | |
1230 | QualType RHSEltType = RHSComplexInt->getElementType(); |
1231 | QualType ScalarType = |
1232 | handleIntegerConversion<doIntegralCast, doComplexIntegralCast> |
1233 | (S, LHS, RHS, LHSType, RHSEltType, IsCompAssign); |
1234 | QualType ComplexType = S.Context.getComplexType(ScalarType); |
1235 | |
1236 | if (!IsCompAssign) |
1237 | LHS = S.ImpCastExprToType(LHS.get(), ComplexType, |
1238 | CK_IntegralRealToComplex); |
1239 | return ComplexType; |
1240 | } |
1241 | |
1242 | |
1243 | |
1244 | |
1245 | static unsigned GetFixedPointRank(QualType Ty) { |
1246 | const auto *BTy = Ty->getAs<BuiltinType>(); |
1247 | (0) . __assert_fail ("BTy && \"Expected a builtin type.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1247, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(BTy && "Expected a builtin type."); |
1248 | |
1249 | switch (BTy->getKind()) { |
1250 | case BuiltinType::ShortFract: |
1251 | case BuiltinType::UShortFract: |
1252 | case BuiltinType::SatShortFract: |
1253 | case BuiltinType::SatUShortFract: |
1254 | return 1; |
1255 | case BuiltinType::Fract: |
1256 | case BuiltinType::UFract: |
1257 | case BuiltinType::SatFract: |
1258 | case BuiltinType::SatUFract: |
1259 | return 2; |
1260 | case BuiltinType::LongFract: |
1261 | case BuiltinType::ULongFract: |
1262 | case BuiltinType::SatLongFract: |
1263 | case BuiltinType::SatULongFract: |
1264 | return 3; |
1265 | case BuiltinType::ShortAccum: |
1266 | case BuiltinType::UShortAccum: |
1267 | case BuiltinType::SatShortAccum: |
1268 | case BuiltinType::SatUShortAccum: |
1269 | return 4; |
1270 | case BuiltinType::Accum: |
1271 | case BuiltinType::UAccum: |
1272 | case BuiltinType::SatAccum: |
1273 | case BuiltinType::SatUAccum: |
1274 | return 5; |
1275 | case BuiltinType::LongAccum: |
1276 | case BuiltinType::ULongAccum: |
1277 | case BuiltinType::SatLongAccum: |
1278 | case BuiltinType::SatULongAccum: |
1279 | return 6; |
1280 | default: |
1281 | if (BTy->isInteger()) |
1282 | return 0; |
1283 | llvm_unreachable("Unexpected fixed point or integer type"); |
1284 | } |
1285 | } |
1286 | |
1287 | |
1288 | |
1289 | |
1290 | |
1291 | |
1292 | static QualType handleFixedPointConversion(Sema &S, QualType LHSTy, |
1293 | QualType RHSTy) { |
1294 | (0) . __assert_fail ("(LHSTy->isFixedPointType() || RHSTy->isFixedPointType()) && \"Expected at least one of the operands to be a fixed point type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1295, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((LHSTy->isFixedPointType() || RHSTy->isFixedPointType()) && |
1295 | (0) . __assert_fail ("(LHSTy->isFixedPointType() || RHSTy->isFixedPointType()) && \"Expected at least one of the operands to be a fixed point type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1295, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Expected at least one of the operands to be a fixed point type"); |
1296 | (0) . __assert_fail ("(LHSTy->isFixedPointOrIntegerType() || RHSTy->isFixedPointOrIntegerType()) && \"Special fixed point arithmetic operation conversions are only \" \"applied to ints or other fixed point types\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1299, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((LHSTy->isFixedPointOrIntegerType() || |
1297 | (0) . __assert_fail ("(LHSTy->isFixedPointOrIntegerType() || RHSTy->isFixedPointOrIntegerType()) && \"Special fixed point arithmetic operation conversions are only \" \"applied to ints or other fixed point types\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1299, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> RHSTy->isFixedPointOrIntegerType()) && |
1298 | (0) . __assert_fail ("(LHSTy->isFixedPointOrIntegerType() || RHSTy->isFixedPointOrIntegerType()) && \"Special fixed point arithmetic operation conversions are only \" \"applied to ints or other fixed point types\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1299, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Special fixed point arithmetic operation conversions are only " |
1299 | (0) . __assert_fail ("(LHSTy->isFixedPointOrIntegerType() || RHSTy->isFixedPointOrIntegerType()) && \"Special fixed point arithmetic operation conversions are only \" \"applied to ints or other fixed point types\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1299, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "applied to ints or other fixed point types"); |
1300 | |
1301 | |
1302 | |
1303 | |
1304 | |
1305 | if (RHSTy->isSignedFixedPointType() && LHSTy->isUnsignedFixedPointType()) |
1306 | LHSTy = S.Context.getCorrespondingSignedFixedPointType(LHSTy); |
1307 | else if (RHSTy->isUnsignedFixedPointType() && LHSTy->isSignedFixedPointType()) |
1308 | RHSTy = S.Context.getCorrespondingSignedFixedPointType(RHSTy); |
1309 | |
1310 | |
1311 | |
1312 | |
1313 | |
1314 | |
1315 | |
1316 | |
1317 | |
1318 | unsigned LHSTyRank = GetFixedPointRank(LHSTy); |
1319 | unsigned RHSTyRank = GetFixedPointRank(RHSTy); |
1320 | |
1321 | QualType ResultTy = LHSTyRank > RHSTyRank ? LHSTy : RHSTy; |
1322 | |
1323 | if (LHSTy->isSaturatedFixedPointType() || RHSTy->isSaturatedFixedPointType()) |
1324 | ResultTy = S.Context.getCorrespondingSaturatedType(ResultTy); |
1325 | |
1326 | return ResultTy; |
1327 | } |
1328 | |
1329 | |
1330 | |
1331 | |
1332 | |
1333 | QualType Sema::UsualArithmeticConversions(ExprResult &LHS, ExprResult &RHS, |
1334 | bool IsCompAssign) { |
1335 | if (!IsCompAssign) { |
1336 | LHS = UsualUnaryConversions(LHS.get()); |
1337 | if (LHS.isInvalid()) |
1338 | return QualType(); |
1339 | } |
1340 | |
1341 | RHS = UsualUnaryConversions(RHS.get()); |
1342 | if (RHS.isInvalid()) |
1343 | return QualType(); |
1344 | |
1345 | |
1346 | |
1347 | QualType LHSType = |
1348 | Context.getCanonicalType(LHS.get()->getType()).getUnqualifiedType(); |
1349 | QualType RHSType = |
1350 | Context.getCanonicalType(RHS.get()->getType()).getUnqualifiedType(); |
1351 | |
1352 | |
1353 | if (const AtomicType *AtomicLHS = LHSType->getAs<AtomicType>()) |
1354 | LHSType = AtomicLHS->getValueType(); |
1355 | |
1356 | |
1357 | if (LHSType == RHSType) |
1358 | return LHSType; |
1359 | |
1360 | |
1361 | |
1362 | if (!LHSType->isArithmeticType() || !RHSType->isArithmeticType()) |
1363 | return QualType(); |
1364 | |
1365 | |
1366 | QualType LHSUnpromotedType = LHSType; |
1367 | if (LHSType->isPromotableIntegerType()) |
1368 | LHSType = Context.getPromotedIntegerType(LHSType); |
1369 | QualType LHSBitfieldPromoteTy = Context.isPromotableBitField(LHS.get()); |
1370 | if (!LHSBitfieldPromoteTy.isNull()) |
1371 | LHSType = LHSBitfieldPromoteTy; |
1372 | if (LHSType != LHSUnpromotedType && !IsCompAssign) |
1373 | LHS = ImpCastExprToType(LHS.get(), LHSType, CK_IntegralCast); |
1374 | |
1375 | |
1376 | if (LHSType == RHSType) |
1377 | return LHSType; |
1378 | |
1379 | |
1380 | |
1381 | |
1382 | |
1383 | if (unsupportedTypeConversion(*this, LHSType, RHSType)) |
1384 | return QualType(); |
1385 | |
1386 | |
1387 | if (LHSType->isComplexType() || RHSType->isComplexType()) |
1388 | return handleComplexFloatConversion(*this, LHS, RHS, LHSType, RHSType, |
1389 | IsCompAssign); |
1390 | |
1391 | |
1392 | if (LHSType->isRealFloatingType() || RHSType->isRealFloatingType()) |
1393 | return handleFloatConversion(*this, LHS, RHS, LHSType, RHSType, |
1394 | IsCompAssign); |
1395 | |
1396 | |
1397 | if (LHSType->isComplexIntegerType() || RHSType->isComplexIntegerType()) |
1398 | return handleComplexIntConversion(*this, LHS, RHS, LHSType, RHSType, |
1399 | IsCompAssign); |
1400 | |
1401 | if (LHSType->isFixedPointType() || RHSType->isFixedPointType()) |
1402 | return handleFixedPointConversion(*this, LHSType, RHSType); |
1403 | |
1404 | |
1405 | return handleIntegerConversion<doIntegralCast, doIntegralCast> |
1406 | (*this, LHS, RHS, LHSType, RHSType, IsCompAssign); |
1407 | } |
1408 | |
1409 | |
1410 | |
1411 | |
1412 | |
1413 | |
1414 | ExprResult |
1415 | Sema::ActOnGenericSelectionExpr(SourceLocation KeyLoc, |
1416 | SourceLocation DefaultLoc, |
1417 | SourceLocation RParenLoc, |
1418 | Expr *ControllingExpr, |
1419 | ArrayRef<ParsedType> ArgTypes, |
1420 | ArrayRef<Expr *> ArgExprs) { |
1421 | unsigned NumAssocs = ArgTypes.size(); |
1422 | assert(NumAssocs == ArgExprs.size()); |
1423 | |
1424 | TypeSourceInfo **Types = new TypeSourceInfo*[NumAssocs]; |
1425 | for (unsigned i = 0; i < NumAssocs; ++i) { |
1426 | if (ArgTypes[i]) |
1427 | (void) GetTypeFromParser(ArgTypes[i], &Types[i]); |
1428 | else |
1429 | Types[i] = nullptr; |
1430 | } |
1431 | |
1432 | ExprResult ER = CreateGenericSelectionExpr(KeyLoc, DefaultLoc, RParenLoc, |
1433 | ControllingExpr, |
1434 | llvm::makeArrayRef(Types, NumAssocs), |
1435 | ArgExprs); |
1436 | delete [] Types; |
1437 | return ER; |
1438 | } |
1439 | |
1440 | ExprResult |
1441 | Sema::CreateGenericSelectionExpr(SourceLocation KeyLoc, |
1442 | SourceLocation DefaultLoc, |
1443 | SourceLocation RParenLoc, |
1444 | Expr *ControllingExpr, |
1445 | ArrayRef<TypeSourceInfo *> Types, |
1446 | ArrayRef<Expr *> Exprs) { |
1447 | unsigned NumAssocs = Types.size(); |
1448 | assert(NumAssocs == Exprs.size()); |
1449 | |
1450 | |
1451 | |
1452 | { |
1453 | EnterExpressionEvaluationContext Unevaluated( |
1454 | *this, Sema::ExpressionEvaluationContext::Unevaluated); |
1455 | ExprResult R = DefaultFunctionArrayLvalueConversion(ControllingExpr); |
1456 | if (R.isInvalid()) |
1457 | return ExprError(); |
1458 | ControllingExpr = R.get(); |
1459 | } |
1460 | |
1461 | |
1462 | |
1463 | if (!inTemplateInstantiation() && |
1464 | ControllingExpr->HasSideEffects(Context, false)) |
1465 | Diag(ControllingExpr->getExprLoc(), |
1466 | diag::warn_side_effects_unevaluated_context); |
1467 | |
1468 | bool TypeErrorFound = false, |
1469 | IsResultDependent = ControllingExpr->isTypeDependent(), |
1470 | ContainsUnexpandedParameterPack |
1471 | = ControllingExpr->containsUnexpandedParameterPack(); |
1472 | |
1473 | for (unsigned i = 0; i < NumAssocs; ++i) { |
1474 | if (Exprs[i]->containsUnexpandedParameterPack()) |
1475 | ContainsUnexpandedParameterPack = true; |
1476 | |
1477 | if (Types[i]) { |
1478 | if (Types[i]->getType()->containsUnexpandedParameterPack()) |
1479 | ContainsUnexpandedParameterPack = true; |
1480 | |
1481 | if (Types[i]->getType()->isDependentType()) { |
1482 | IsResultDependent = true; |
1483 | } else { |
1484 | |
1485 | |
1486 | unsigned D = 0; |
1487 | if (Types[i]->getType()->isIncompleteType()) |
1488 | D = diag::err_assoc_type_incomplete; |
1489 | else if (!Types[i]->getType()->isObjectType()) |
1490 | D = diag::err_assoc_type_nonobject; |
1491 | else if (Types[i]->getType()->isVariablyModifiedType()) |
1492 | D = diag::err_assoc_type_variably_modified; |
1493 | |
1494 | if (D != 0) { |
1495 | Diag(Types[i]->getTypeLoc().getBeginLoc(), D) |
1496 | << Types[i]->getTypeLoc().getSourceRange() |
1497 | << Types[i]->getType(); |
1498 | TypeErrorFound = true; |
1499 | } |
1500 | |
1501 | |
1502 | |
1503 | for (unsigned j = i+1; j < NumAssocs; ++j) |
1504 | if (Types[j] && !Types[j]->getType()->isDependentType() && |
1505 | Context.typesAreCompatible(Types[i]->getType(), |
1506 | Types[j]->getType())) { |
1507 | Diag(Types[j]->getTypeLoc().getBeginLoc(), |
1508 | diag::err_assoc_compatible_types) |
1509 | << Types[j]->getTypeLoc().getSourceRange() |
1510 | << Types[j]->getType() |
1511 | << Types[i]->getType(); |
1512 | Diag(Types[i]->getTypeLoc().getBeginLoc(), |
1513 | diag::note_compat_assoc) |
1514 | << Types[i]->getTypeLoc().getSourceRange() |
1515 | << Types[i]->getType(); |
1516 | TypeErrorFound = true; |
1517 | } |
1518 | } |
1519 | } |
1520 | } |
1521 | if (TypeErrorFound) |
1522 | return ExprError(); |
1523 | |
1524 | |
1525 | |
1526 | if (IsResultDependent) |
1527 | return GenericSelectionExpr::Create(Context, KeyLoc, ControllingExpr, Types, |
1528 | Exprs, DefaultLoc, RParenLoc, |
1529 | ContainsUnexpandedParameterPack); |
1530 | |
1531 | SmallVector<unsigned, 1> CompatIndices; |
1532 | unsigned DefaultIndex = -1U; |
1533 | for (unsigned i = 0; i < NumAssocs; ++i) { |
1534 | if (!Types[i]) |
1535 | DefaultIndex = i; |
1536 | else if (Context.typesAreCompatible(ControllingExpr->getType(), |
1537 | Types[i]->getType())) |
1538 | CompatIndices.push_back(i); |
1539 | } |
1540 | |
1541 | |
1542 | |
1543 | |
1544 | if (CompatIndices.size() > 1) { |
1545 | |
1546 | |
1547 | ControllingExpr = ControllingExpr->IgnoreParens(); |
1548 | Diag(ControllingExpr->getBeginLoc(), diag::err_generic_sel_multi_match) |
1549 | << ControllingExpr->getSourceRange() << ControllingExpr->getType() |
1550 | << (unsigned)CompatIndices.size(); |
1551 | for (unsigned I : CompatIndices) { |
1552 | Diag(Types[I]->getTypeLoc().getBeginLoc(), |
1553 | diag::note_compat_assoc) |
1554 | << Types[I]->getTypeLoc().getSourceRange() |
1555 | << Types[I]->getType(); |
1556 | } |
1557 | return ExprError(); |
1558 | } |
1559 | |
1560 | |
1561 | |
1562 | |
1563 | if (DefaultIndex == -1U && CompatIndices.size() == 0) { |
1564 | |
1565 | |
1566 | ControllingExpr = ControllingExpr->IgnoreParens(); |
1567 | Diag(ControllingExpr->getBeginLoc(), diag::err_generic_sel_no_match) |
1568 | << ControllingExpr->getSourceRange() << ControllingExpr->getType(); |
1569 | return ExprError(); |
1570 | } |
1571 | |
1572 | |
1573 | |
1574 | |
1575 | |
1576 | |
1577 | unsigned ResultIndex = |
1578 | CompatIndices.size() ? CompatIndices[0] : DefaultIndex; |
1579 | |
1580 | return GenericSelectionExpr::Create( |
1581 | Context, KeyLoc, ControllingExpr, Types, Exprs, DefaultLoc, RParenLoc, |
1582 | ContainsUnexpandedParameterPack, ResultIndex); |
1583 | } |
1584 | |
1585 | |
1586 | |
1587 | static SourceLocation getUDSuffixLoc(Sema &S, SourceLocation TokLoc, |
1588 | unsigned Offset) { |
1589 | return Lexer::AdvanceToTokenCharacter(TokLoc, Offset, S.getSourceManager(), |
1590 | S.getLangOpts()); |
1591 | } |
1592 | |
1593 | |
1594 | |
1595 | static ExprResult BuildCookedLiteralOperatorCall(Sema &S, Scope *Scope, |
1596 | IdentifierInfo *UDSuffix, |
1597 | SourceLocation UDSuffixLoc, |
1598 | ArrayRef<Expr*> Args, |
1599 | SourceLocation LitEndLoc) { |
1600 | (0) . __assert_fail ("Args.size() <= 2 && \"too many arguments for literal operator\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1600, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Args.size() <= 2 && "too many arguments for literal operator"); |
1601 | |
1602 | QualType ArgTy[2]; |
1603 | for (unsigned ArgIdx = 0; ArgIdx != Args.size(); ++ArgIdx) { |
1604 | ArgTy[ArgIdx] = Args[ArgIdx]->getType(); |
1605 | if (ArgTy[ArgIdx]->isArrayType()) |
1606 | ArgTy[ArgIdx] = S.Context.getArrayDecayedType(ArgTy[ArgIdx]); |
1607 | } |
1608 | |
1609 | DeclarationName OpName = |
1610 | S.Context.DeclarationNames.getCXXLiteralOperatorName(UDSuffix); |
1611 | DeclarationNameInfo OpNameInfo(OpName, UDSuffixLoc); |
1612 | OpNameInfo.setCXXLiteralOperatorNameLoc(UDSuffixLoc); |
1613 | |
1614 | LookupResult R(S, OpName, UDSuffixLoc, Sema::LookupOrdinaryName); |
1615 | if (S.LookupLiteralOperator(Scope, R, llvm::makeArrayRef(ArgTy, Args.size()), |
1616 | false, false, |
1617 | false, |
1618 | true) == Sema::LOLR_Error) |
1619 | return ExprError(); |
1620 | |
1621 | return S.BuildLiteralOperatorCall(R, OpNameInfo, Args, LitEndLoc); |
1622 | } |
1623 | |
1624 | |
1625 | |
1626 | |
1627 | |
1628 | |
1629 | |
1630 | ExprResult |
1631 | Sema::ActOnStringLiteral(ArrayRef<Token> StringToks, Scope *UDLScope) { |
1632 | (0) . __assert_fail ("!StringToks.empty() && \"Must have at least one string!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1632, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!StringToks.empty() && "Must have at least one string!"); |
1633 | |
1634 | StringLiteralParser Literal(StringToks, PP); |
1635 | if (Literal.hadError) |
1636 | return ExprError(); |
1637 | |
1638 | SmallVector<SourceLocation, 4> StringTokLocs; |
1639 | for (const Token &Tok : StringToks) |
1640 | StringTokLocs.push_back(Tok.getLocation()); |
1641 | |
1642 | QualType CharTy = Context.CharTy; |
1643 | StringLiteral::StringKind Kind = StringLiteral::Ascii; |
1644 | if (Literal.isWide()) { |
1645 | CharTy = Context.getWideCharType(); |
1646 | Kind = StringLiteral::Wide; |
1647 | } else if (Literal.isUTF8()) { |
1648 | if (getLangOpts().Char8) |
1649 | CharTy = Context.Char8Ty; |
1650 | Kind = StringLiteral::UTF8; |
1651 | } else if (Literal.isUTF16()) { |
1652 | CharTy = Context.Char16Ty; |
1653 | Kind = StringLiteral::UTF16; |
1654 | } else if (Literal.isUTF32()) { |
1655 | CharTy = Context.Char32Ty; |
1656 | Kind = StringLiteral::UTF32; |
1657 | } else if (Literal.isPascal()) { |
1658 | CharTy = Context.UnsignedCharTy; |
1659 | } |
1660 | |
1661 | |
1662 | |
1663 | if (getLangOpts().CPlusPlus && !getLangOpts().CPlusPlus2a && |
1664 | !getLangOpts().Char8 && Kind == StringLiteral::UTF8) { |
1665 | Diag(StringTokLocs.front(), diag::warn_cxx2a_compat_utf8_string); |
1666 | |
1667 | |
1668 | |
1669 | |
1670 | |
1671 | auto RemovalDiag = PDiag(diag::note_cxx2a_compat_utf8_string_remove_u8); |
1672 | SourceLocation RemovalDiagLoc; |
1673 | for (const Token &Tok : StringToks) { |
1674 | if (Tok.getKind() == tok::utf8_string_literal) { |
1675 | if (RemovalDiagLoc.isInvalid()) |
1676 | RemovalDiagLoc = Tok.getLocation(); |
1677 | RemovalDiag << FixItHint::CreateRemoval(CharSourceRange::getCharRange( |
1678 | Tok.getLocation(), |
1679 | Lexer::AdvanceToTokenCharacter(Tok.getLocation(), 2, |
1680 | getSourceManager(), getLangOpts()))); |
1681 | } |
1682 | } |
1683 | Diag(RemovalDiagLoc, RemovalDiag); |
1684 | } |
1685 | |
1686 | |
1687 | QualType CharTyConst = CharTy; |
1688 | |
1689 | if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) |
1690 | CharTyConst.addConst(); |
1691 | |
1692 | CharTyConst = Context.adjustStringLiteralBaseType(CharTyConst); |
1693 | |
1694 | |
1695 | |
1696 | |
1697 | QualType StrTy = Context.getConstantArrayType( |
1698 | CharTyConst, llvm::APInt(32, Literal.GetNumStringChars() + 1), |
1699 | ArrayType::Normal, 0); |
1700 | |
1701 | |
1702 | StringLiteral *Lit = StringLiteral::Create(Context, Literal.GetString(), |
1703 | Kind, Literal.Pascal, StrTy, |
1704 | &StringTokLocs[0], |
1705 | StringTokLocs.size()); |
1706 | if (Literal.getUDSuffix().empty()) |
1707 | return Lit; |
1708 | |
1709 | |
1710 | IdentifierInfo *UDSuffix = &Context.Idents.get(Literal.getUDSuffix()); |
1711 | SourceLocation UDSuffixLoc = |
1712 | getUDSuffixLoc(*this, StringTokLocs[Literal.getUDSuffixToken()], |
1713 | Literal.getUDSuffixOffset()); |
1714 | |
1715 | |
1716 | if (!UDLScope) |
1717 | return ExprError(Diag(UDSuffixLoc, diag::err_invalid_string_udl)); |
1718 | |
1719 | |
1720 | |
1721 | QualType SizeType = Context.getSizeType(); |
1722 | |
1723 | DeclarationName OpName = |
1724 | Context.DeclarationNames.getCXXLiteralOperatorName(UDSuffix); |
1725 | DeclarationNameInfo OpNameInfo(OpName, UDSuffixLoc); |
1726 | OpNameInfo.setCXXLiteralOperatorNameLoc(UDSuffixLoc); |
1727 | |
1728 | QualType ArgTy[] = { |
1729 | Context.getArrayDecayedType(StrTy), SizeType |
1730 | }; |
1731 | |
1732 | LookupResult R(*this, OpName, UDSuffixLoc, LookupOrdinaryName); |
1733 | switch (LookupLiteralOperator(UDLScope, R, ArgTy, |
1734 | false, false, |
1735 | true, |
1736 | true)) { |
1737 | |
1738 | case LOLR_Cooked: { |
1739 | llvm::APInt Len(Context.getIntWidth(SizeType), Literal.GetNumStringChars()); |
1740 | IntegerLiteral *LenArg = IntegerLiteral::Create(Context, Len, SizeType, |
1741 | StringTokLocs[0]); |
1742 | Expr *Args[] = { Lit, LenArg }; |
1743 | |
1744 | return BuildLiteralOperatorCall(R, OpNameInfo, Args, StringTokLocs.back()); |
1745 | } |
1746 | |
1747 | case LOLR_StringTemplate: { |
1748 | TemplateArgumentListInfo ExplicitArgs; |
1749 | |
1750 | unsigned CharBits = Context.getIntWidth(CharTy); |
1751 | bool CharIsUnsigned = CharTy->isUnsignedIntegerType(); |
1752 | llvm::APSInt Value(CharBits, CharIsUnsigned); |
1753 | |
1754 | TemplateArgument TypeArg(CharTy); |
1755 | TemplateArgumentLocInfo TypeArgInfo(Context.getTrivialTypeSourceInfo(CharTy)); |
1756 | ExplicitArgs.addArgument(TemplateArgumentLoc(TypeArg, TypeArgInfo)); |
1757 | |
1758 | for (unsigned I = 0, N = Lit->getLength(); I != N; ++I) { |
1759 | Value = Lit->getCodeUnit(I); |
1760 | TemplateArgument Arg(Context, Value, CharTy); |
1761 | TemplateArgumentLocInfo ArgInfo; |
1762 | ExplicitArgs.addArgument(TemplateArgumentLoc(Arg, ArgInfo)); |
1763 | } |
1764 | return BuildLiteralOperatorCall(R, OpNameInfo, None, StringTokLocs.back(), |
1765 | &ExplicitArgs); |
1766 | } |
1767 | case LOLR_Raw: |
1768 | case LOLR_Template: |
1769 | case LOLR_ErrorNoDiagnostic: |
1770 | llvm_unreachable("unexpected literal operator lookup result"); |
1771 | case LOLR_Error: |
1772 | return ExprError(); |
1773 | } |
1774 | llvm_unreachable("unexpected literal operator lookup result"); |
1775 | } |
1776 | |
1777 | ExprResult |
1778 | Sema::BuildDeclRefExpr(ValueDecl *D, QualType Ty, ExprValueKind VK, |
1779 | SourceLocation Loc, |
1780 | const CXXScopeSpec *SS) { |
1781 | DeclarationNameInfo NameInfo(D->getDeclName(), Loc); |
1782 | return BuildDeclRefExpr(D, Ty, VK, NameInfo, SS); |
1783 | } |
1784 | |
1785 | |
1786 | |
1787 | ExprResult |
1788 | Sema::BuildDeclRefExpr(ValueDecl *D, QualType Ty, ExprValueKind VK, |
1789 | const DeclarationNameInfo &NameInfo, |
1790 | const CXXScopeSpec *SS, NamedDecl *FoundD, |
1791 | const TemplateArgumentListInfo *TemplateArgs) { |
1792 | bool RefersToCapturedVariable = |
1793 | isa<VarDecl>(D) && |
1794 | NeedToCaptureVariable(cast<VarDecl>(D), NameInfo.getLoc()); |
1795 | |
1796 | DeclRefExpr *E; |
1797 | if (isa<VarTemplateSpecializationDecl>(D)) { |
1798 | VarTemplateSpecializationDecl *VarSpec = |
1799 | cast<VarTemplateSpecializationDecl>(D); |
1800 | |
1801 | E = DeclRefExpr::Create(Context, SS ? SS->getWithLocInContext(Context) |
1802 | : NestedNameSpecifierLoc(), |
1803 | VarSpec->getTemplateKeywordLoc(), D, |
1804 | RefersToCapturedVariable, NameInfo.getLoc(), Ty, VK, |
1805 | FoundD, TemplateArgs); |
1806 | } else { |
1807 | (0) . __assert_fail ("!TemplateArgs && \"No template arguments for non-variable\" \" template specialization references\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1808, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!TemplateArgs && "No template arguments for non-variable" |
1808 | (0) . __assert_fail ("!TemplateArgs && \"No template arguments for non-variable\" \" template specialization references\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1808, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> " template specialization references"); |
1809 | E = DeclRefExpr::Create(Context, SS ? SS->getWithLocInContext(Context) |
1810 | : NestedNameSpecifierLoc(), |
1811 | SourceLocation(), D, RefersToCapturedVariable, |
1812 | NameInfo, Ty, VK, FoundD); |
1813 | } |
1814 | |
1815 | MarkDeclRefReferenced(E); |
1816 | |
1817 | if (getLangOpts().ObjCWeak && isa<VarDecl>(D) && |
1818 | Ty.getObjCLifetime() == Qualifiers::OCL_Weak && !isUnevaluatedContext() && |
1819 | !Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, E->getBeginLoc())) |
1820 | getCurFunction()->recordUseOfWeak(E); |
1821 | |
1822 | FieldDecl *FD = dyn_cast<FieldDecl>(D); |
1823 | if (IndirectFieldDecl *IFD = dyn_cast<IndirectFieldDecl>(D)) |
1824 | FD = IFD->getAnonField(); |
1825 | if (FD) { |
1826 | UnusedPrivateFields.remove(FD); |
1827 | |
1828 | if (FD->isBitField()) |
1829 | E->setObjectKind(OK_BitField); |
1830 | } |
1831 | |
1832 | |
1833 | |
1834 | if (auto *BD = dyn_cast<BindingDecl>(D)) |
1835 | if (auto *BE = BD->getBinding()) |
1836 | E->setObjectKind(BE->getObjectKind()); |
1837 | |
1838 | return E; |
1839 | } |
1840 | |
1841 | |
1842 | |
1843 | |
1844 | |
1845 | |
1846 | |
1847 | |
1848 | |
1849 | |
1850 | void |
1851 | Sema::DecomposeUnqualifiedId(const UnqualifiedId &Id, |
1852 | TemplateArgumentListInfo &Buffer, |
1853 | DeclarationNameInfo &NameInfo, |
1854 | const TemplateArgumentListInfo *&TemplateArgs) { |
1855 | if (Id.getKind() == UnqualifiedIdKind::IK_TemplateId) { |
1856 | Buffer.setLAngleLoc(Id.TemplateId->LAngleLoc); |
1857 | Buffer.setRAngleLoc(Id.TemplateId->RAngleLoc); |
1858 | |
1859 | ASTTemplateArgsPtr TemplateArgsPtr(Id.TemplateId->getTemplateArgs(), |
1860 | Id.TemplateId->NumArgs); |
1861 | translateTemplateArguments(TemplateArgsPtr, Buffer); |
1862 | |
1863 | TemplateName TName = Id.TemplateId->Template.get(); |
1864 | SourceLocation TNameLoc = Id.TemplateId->TemplateNameLoc; |
1865 | NameInfo = Context.getNameForTemplate(TName, TNameLoc); |
1866 | TemplateArgs = &Buffer; |
1867 | } else { |
1868 | NameInfo = GetNameFromUnqualifiedId(Id); |
1869 | TemplateArgs = nullptr; |
1870 | } |
1871 | } |
1872 | |
1873 | static void emitEmptyLookupTypoDiagnostic( |
1874 | const TypoCorrection &TC, Sema &SemaRef, const CXXScopeSpec &SS, |
1875 | DeclarationName Typo, SourceLocation TypoLoc, ArrayRef<Expr *> Args, |
1876 | unsigned DiagnosticID, unsigned DiagnosticSuggestID) { |
1877 | DeclContext *Ctx = |
1878 | SS.isEmpty() ? nullptr : SemaRef.computeDeclContext(SS, false); |
1879 | if (!TC) { |
1880 | |
1881 | |
1882 | if (Ctx) |
1883 | SemaRef.Diag(TypoLoc, diag::err_no_member) << Typo << Ctx |
1884 | << SS.getRange(); |
1885 | else |
1886 | SemaRef.Diag(TypoLoc, DiagnosticID) << Typo; |
1887 | return; |
1888 | } |
1889 | |
1890 | std::string CorrectedStr = TC.getAsString(SemaRef.getLangOpts()); |
1891 | bool DroppedSpecifier = |
1892 | TC.WillReplaceSpecifier() && Typo.getAsString() == CorrectedStr; |
1893 | unsigned NoteID = TC.getCorrectionDeclAs<ImplicitParamDecl>() |
1894 | ? diag::note_implicit_param_decl |
1895 | : diag::note_previous_decl; |
1896 | if (!Ctx) |
1897 | SemaRef.diagnoseTypo(TC, SemaRef.PDiag(DiagnosticSuggestID) << Typo, |
1898 | SemaRef.PDiag(NoteID)); |
1899 | else |
1900 | SemaRef.diagnoseTypo(TC, SemaRef.PDiag(diag::err_no_member_suggest) |
1901 | << Typo << Ctx << DroppedSpecifier |
1902 | << SS.getRange(), |
1903 | SemaRef.PDiag(NoteID)); |
1904 | } |
1905 | |
1906 | |
1907 | |
1908 | |
1909 | bool Sema::DiagnoseEmptyLookup(Scope *S, CXXScopeSpec &SS, LookupResult &R, |
1910 | CorrectionCandidateCallback &CCC, |
1911 | TemplateArgumentListInfo *ExplicitTemplateArgs, |
1912 | ArrayRef<Expr *> Args, TypoExpr **Out) { |
1913 | DeclarationName Name = R.getLookupName(); |
1914 | |
1915 | unsigned diagnostic = diag::err_undeclared_var_use; |
1916 | unsigned diagnostic_suggest = diag::err_undeclared_var_use_suggest; |
1917 | if (Name.getNameKind() == DeclarationName::CXXOperatorName || |
1918 | Name.getNameKind() == DeclarationName::CXXLiteralOperatorName || |
1919 | Name.getNameKind() == DeclarationName::CXXConversionFunctionName) { |
1920 | diagnostic = diag::err_undeclared_use; |
1921 | diagnostic_suggest = diag::err_undeclared_use_suggest; |
1922 | } |
1923 | |
1924 | |
1925 | |
1926 | |
1927 | |
1928 | DeclContext *DC = SS.isEmpty() ? CurContext : nullptr; |
1929 | while (DC) { |
1930 | if (isa<CXXRecordDecl>(DC)) { |
1931 | LookupQualifiedName(R, DC); |
1932 | |
1933 | if (!R.empty()) { |
1934 | |
1935 | R.suppressDiagnostics(); |
1936 | |
1937 | |
1938 | |
1939 | |
1940 | bool isDefaultArgument = |
1941 | !CodeSynthesisContexts.empty() && |
1942 | CodeSynthesisContexts.back().Kind == |
1943 | CodeSynthesisContext::DefaultFunctionArgumentInstantiation; |
1944 | CXXMethodDecl *CurMethod = dyn_cast<CXXMethodDecl>(CurContext); |
1945 | bool isInstance = CurMethod && |
1946 | CurMethod->isInstance() && |
1947 | DC == CurMethod->getParent() && !isDefaultArgument; |
1948 | |
1949 | |
1950 | |
1951 | |
1952 | if (getLangOpts().MSVCCompat) |
1953 | diagnostic = diag::ext_found_via_dependent_bases_lookup; |
1954 | if (isInstance) { |
1955 | Diag(R.getNameLoc(), diagnostic) << Name |
1956 | << FixItHint::CreateInsertion(R.getNameLoc(), "this->"); |
1957 | CheckCXXThisCapture(R.getNameLoc()); |
1958 | } else { |
1959 | Diag(R.getNameLoc(), diagnostic) << Name; |
1960 | } |
1961 | |
1962 | |
1963 | for (NamedDecl *D : R) |
1964 | Diag(D->getLocation(), diag::note_dependent_var_use); |
1965 | |
1966 | |
1967 | |
1968 | |
1969 | |
1970 | if (isDefaultArgument && ((*R.begin())->isCXXInstanceMember())) { |
1971 | Diag(R.getNameLoc(), diag::err_member_call_without_object); |
1972 | return true; |
1973 | } |
1974 | |
1975 | |
1976 | return false; |
1977 | } |
1978 | |
1979 | R.clear(); |
1980 | } |
1981 | |
1982 | |
1983 | |
1984 | |
1985 | |
1986 | if (getLangOpts().MSVCCompat && isa<FunctionDecl>(DC) && |
1987 | cast<FunctionDecl>(DC)->getFriendObjectKind() && |
1988 | DC->getLexicalParent()->isRecord()) |
1989 | DC = DC->getLexicalParent(); |
1990 | else |
1991 | DC = DC->getParent(); |
1992 | } |
1993 | |
1994 | |
1995 | TypoCorrection Corrected; |
1996 | if (S && Out) { |
1997 | SourceLocation TypoLoc = R.getNameLoc(); |
1998 | (0) . __assert_fail ("!ExplicitTemplateArgs && \"Diagnosing an empty lookup with explicit template args!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1999, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!ExplicitTemplateArgs && |
1999 | (0) . __assert_fail ("!ExplicitTemplateArgs && \"Diagnosing an empty lookup with explicit template args!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 1999, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Diagnosing an empty lookup with explicit template args!"); |
2000 | *Out = CorrectTypoDelayed( |
2001 | R.getLookupNameInfo(), R.getLookupKind(), S, &SS, CCC, |
2002 | [=](const TypoCorrection &TC) { |
2003 | emitEmptyLookupTypoDiagnostic(TC, *this, SS, Name, TypoLoc, Args, |
2004 | diagnostic, diagnostic_suggest); |
2005 | }, |
2006 | nullptr, CTK_ErrorRecovery); |
2007 | if (*Out) |
2008 | return true; |
2009 | } else if (S && |
2010 | (Corrected = CorrectTypo(R.getLookupNameInfo(), R.getLookupKind(), |
2011 | S, &SS, CCC, CTK_ErrorRecovery))) { |
2012 | std::string CorrectedStr(Corrected.getAsString(getLangOpts())); |
2013 | bool DroppedSpecifier = |
2014 | Corrected.WillReplaceSpecifier() && Name.getAsString() == CorrectedStr; |
2015 | R.setLookupName(Corrected.getCorrection()); |
2016 | |
2017 | bool AcceptableWithRecovery = false; |
2018 | bool AcceptableWithoutRecovery = false; |
2019 | NamedDecl *ND = Corrected.getFoundDecl(); |
2020 | if (ND) { |
2021 | if (Corrected.isOverloaded()) { |
2022 | OverloadCandidateSet OCS(R.getNameLoc(), |
2023 | OverloadCandidateSet::CSK_Normal); |
2024 | OverloadCandidateSet::iterator Best; |
2025 | for (NamedDecl *CD : Corrected) { |
2026 | if (FunctionTemplateDecl *FTD = |
2027 | dyn_cast<FunctionTemplateDecl>(CD)) |
2028 | AddTemplateOverloadCandidate( |
2029 | FTD, DeclAccessPair::make(FTD, AS_none), ExplicitTemplateArgs, |
2030 | Args, OCS); |
2031 | else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(CD)) |
2032 | if (!ExplicitTemplateArgs || ExplicitTemplateArgs->size() == 0) |
2033 | AddOverloadCandidate(FD, DeclAccessPair::make(FD, AS_none), |
2034 | Args, OCS); |
2035 | } |
2036 | switch (OCS.BestViableFunction(*this, R.getNameLoc(), Best)) { |
2037 | case OR_Success: |
2038 | ND = Best->FoundDecl; |
2039 | Corrected.setCorrectionDecl(ND); |
2040 | break; |
2041 | default: |
2042 | |
2043 | Corrected.setCorrectionDecl(ND); |
2044 | break; |
2045 | } |
2046 | } |
2047 | R.addDecl(ND); |
2048 | if (getLangOpts().CPlusPlus && ND->isCXXClassMember()) { |
2049 | CXXRecordDecl *Record = nullptr; |
2050 | if (Corrected.getCorrectionSpecifier()) { |
2051 | const Type *Ty = Corrected.getCorrectionSpecifier()->getAsType(); |
2052 | Record = Ty->getAsCXXRecordDecl(); |
2053 | } |
2054 | if (!Record) |
2055 | Record = cast<CXXRecordDecl>( |
2056 | ND->getDeclContext()->getRedeclContext()); |
2057 | R.setNamingClass(Record); |
2058 | } |
2059 | |
2060 | auto *UnderlyingND = ND->getUnderlyingDecl(); |
2061 | AcceptableWithRecovery = isa<ValueDecl>(UnderlyingND) || |
2062 | isa<FunctionTemplateDecl>(UnderlyingND); |
2063 | |
2064 | |
2065 | |
2066 | |
2067 | |
2068 | AcceptableWithoutRecovery = |
2069 | isa<TypeDecl>(UnderlyingND) || isa<ObjCInterfaceDecl>(UnderlyingND); |
2070 | } else { |
2071 | |
2072 | |
2073 | AcceptableWithoutRecovery = true; |
2074 | } |
2075 | |
2076 | if (AcceptableWithRecovery || AcceptableWithoutRecovery) { |
2077 | unsigned NoteID = Corrected.getCorrectionDeclAs<ImplicitParamDecl>() |
2078 | ? diag::note_implicit_param_decl |
2079 | : diag::note_previous_decl; |
2080 | if (SS.isEmpty()) |
2081 | diagnoseTypo(Corrected, PDiag(diagnostic_suggest) << Name, |
2082 | PDiag(NoteID), AcceptableWithRecovery); |
2083 | else |
2084 | diagnoseTypo(Corrected, PDiag(diag::err_no_member_suggest) |
2085 | << Name << computeDeclContext(SS, false) |
2086 | << DroppedSpecifier << SS.getRange(), |
2087 | PDiag(NoteID), AcceptableWithRecovery); |
2088 | |
2089 | |
2090 | return !AcceptableWithRecovery; |
2091 | } |
2092 | } |
2093 | R.clear(); |
2094 | |
2095 | |
2096 | |
2097 | if (!SS.isEmpty()) { |
2098 | Diag(R.getNameLoc(), diag::err_no_member) |
2099 | << Name << computeDeclContext(SS, false) |
2100 | << SS.getRange(); |
2101 | return true; |
2102 | } |
2103 | |
2104 | |
2105 | Diag(R.getNameLoc(), diagnostic) << Name; |
2106 | return true; |
2107 | } |
2108 | |
2109 | |
2110 | |
2111 | |
2112 | |
2113 | |
2114 | |
2115 | static Expr * |
2116 | recoverFromMSUnqualifiedLookup(Sema &S, ASTContext &Context, |
2117 | DeclarationNameInfo &NameInfo, |
2118 | SourceLocation TemplateKWLoc, |
2119 | const TemplateArgumentListInfo *TemplateArgs) { |
2120 | |
2121 | |
2122 | QualType ThisType = S.getCurrentThisType(); |
2123 | const CXXRecordDecl *RD = nullptr; |
2124 | if (!ThisType.isNull()) |
2125 | RD = ThisType->getPointeeType()->getAsCXXRecordDecl(); |
2126 | else if (auto *MD = dyn_cast<CXXMethodDecl>(S.CurContext)) |
2127 | RD = MD->getParent(); |
2128 | if (!RD || !RD->hasAnyDependentBases()) |
2129 | return nullptr; |
2130 | |
2131 | |
2132 | |
2133 | SourceLocation Loc = NameInfo.getLoc(); |
2134 | auto DB = S.Diag(Loc, diag::ext_undeclared_unqual_id_with_dependent_base); |
2135 | DB << NameInfo.getName() << RD; |
2136 | |
2137 | if (!ThisType.isNull()) { |
2138 | DB << FixItHint::CreateInsertion(Loc, "this->"); |
2139 | return CXXDependentScopeMemberExpr::Create( |
2140 | Context, , ThisType, , |
2141 | (), NestedNameSpecifierLoc(), TemplateKWLoc, |
2142 | , NameInfo, TemplateArgs); |
2143 | } |
2144 | |
2145 | |
2146 | |
2147 | CXXScopeSpec SS; |
2148 | auto *NNS = |
2149 | NestedNameSpecifier::Create(Context, nullptr, true, RD->getTypeForDecl()); |
2150 | SS.MakeTrivial(Context, NNS, SourceRange(Loc, Loc)); |
2151 | return DependentScopeDeclRefExpr::Create( |
2152 | Context, SS.getWithLocInContext(Context), TemplateKWLoc, NameInfo, |
2153 | TemplateArgs); |
2154 | } |
2155 | |
2156 | ExprResult |
2157 | Sema::ActOnIdExpression(Scope *S, CXXScopeSpec &SS, |
2158 | SourceLocation TemplateKWLoc, UnqualifiedId &Id, |
2159 | bool HasTrailingLParen, bool IsAddressOfOperand, |
2160 | CorrectionCandidateCallback *CCC, |
2161 | bool IsInlineAsmIdentifier, Token *KeywordReplacement) { |
2162 | (0) . __assert_fail ("!(IsAddressOfOperand && HasTrailingLParen) && \"cannot be direct & operand and have a trailing lparen\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2163, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!(IsAddressOfOperand && HasTrailingLParen) && |
2163 | (0) . __assert_fail ("!(IsAddressOfOperand && HasTrailingLParen) && \"cannot be direct & operand and have a trailing lparen\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2163, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "cannot be direct & operand and have a trailing lparen"); |
2164 | if (SS.isInvalid()) |
2165 | return ExprError(); |
2166 | |
2167 | TemplateArgumentListInfo TemplateArgsBuffer; |
2168 | |
2169 | |
2170 | DeclarationNameInfo NameInfo; |
2171 | const TemplateArgumentListInfo *TemplateArgs; |
2172 | DecomposeUnqualifiedId(Id, TemplateArgsBuffer, NameInfo, TemplateArgs); |
2173 | |
2174 | DeclarationName Name = NameInfo.getName(); |
2175 | IdentifierInfo *II = Name.getAsIdentifierInfo(); |
2176 | SourceLocation NameLoc = NameInfo.getLoc(); |
2177 | |
2178 | if (II && II->isEditorPlaceholder()) { |
2179 | |
2180 | |
2181 | return ExprError(); |
2182 | } |
2183 | |
2184 | |
2185 | |
2186 | |
2187 | |
2188 | |
2189 | |
2190 | |
2191 | |
2192 | |
2193 | |
2194 | |
2195 | bool DependentID = false; |
2196 | if (Name.getNameKind() == DeclarationName::CXXConversionFunctionName && |
2197 | Name.getCXXNameType()->isDependentType()) { |
2198 | DependentID = true; |
2199 | } else if (SS.isSet()) { |
2200 | if (DeclContext *DC = computeDeclContext(SS, false)) { |
2201 | if (RequireCompleteDeclContext(SS, DC)) |
2202 | return ExprError(); |
2203 | } else { |
2204 | DependentID = true; |
2205 | } |
2206 | } |
2207 | |
2208 | if (DependentID) |
2209 | return ActOnDependentIdExpression(SS, TemplateKWLoc, NameInfo, |
2210 | IsAddressOfOperand, TemplateArgs); |
2211 | |
2212 | |
2213 | LookupResult R(*this, NameInfo, |
2214 | (Id.getKind() == UnqualifiedIdKind::IK_ImplicitSelfParam) |
2215 | ? LookupObjCImplicitSelfParam |
2216 | : LookupOrdinaryName); |
2217 | if (TemplateKWLoc.isValid() || TemplateArgs) { |
2218 | |
2219 | |
2220 | |
2221 | |
2222 | |
2223 | bool MemberOfUnknownSpecialization; |
2224 | if (LookupTemplateName(R, S, SS, QualType(), , |
2225 | MemberOfUnknownSpecialization, TemplateKWLoc)) |
2226 | return ExprError(); |
2227 | |
2228 | if (MemberOfUnknownSpecialization || |
2229 | (R.getResultKind() == LookupResult::NotFoundInCurrentInstantiation)) |
2230 | return ActOnDependentIdExpression(SS, TemplateKWLoc, NameInfo, |
2231 | IsAddressOfOperand, TemplateArgs); |
2232 | } else { |
2233 | bool IvarLookupFollowUp = II && !SS.isSet() && getCurMethodDecl(); |
2234 | LookupParsedName(R, S, &SS, !IvarLookupFollowUp); |
2235 | |
2236 | |
2237 | |
2238 | if (R.getResultKind() == LookupResult::NotFoundInCurrentInstantiation) |
2239 | return ActOnDependentIdExpression(SS, TemplateKWLoc, NameInfo, |
2240 | IsAddressOfOperand, TemplateArgs); |
2241 | |
2242 | |
2243 | |
2244 | if (IvarLookupFollowUp) { |
2245 | ExprResult E(LookupInObjCMethod(R, S, II, true)); |
2246 | if (E.isInvalid()) |
2247 | return ExprError(); |
2248 | |
2249 | if (Expr *Ex = E.getAs<Expr>()) |
2250 | return Ex; |
2251 | } |
2252 | } |
2253 | |
2254 | if (R.isAmbiguous()) |
2255 | return ExprError(); |
2256 | |
2257 | |
2258 | |
2259 | if (R.empty() && HasTrailingLParen && II && !getLangOpts().CPlusPlus) { |
2260 | NamedDecl *D = ImplicitlyDefineFunction(NameLoc, *II, S); |
2261 | if (D) R.addDecl(D); |
2262 | } |
2263 | |
2264 | |
2265 | |
2266 | bool ADL = UseArgumentDependentLookup(SS, R, HasTrailingLParen); |
2267 | |
2268 | if (R.empty() && !ADL) { |
2269 | if (SS.isEmpty() && getLangOpts().MSVCCompat) { |
2270 | if (Expr *E = recoverFromMSUnqualifiedLookup(*this, Context, NameInfo, |
2271 | TemplateKWLoc, TemplateArgs)) |
2272 | return E; |
2273 | } |
2274 | |
2275 | |
2276 | if (IsInlineAsmIdentifier) |
2277 | return ExprError(); |
2278 | |
2279 | |
2280 | |
2281 | TypoExpr *TE = nullptr; |
2282 | DefaultFilterCCC DefaultValidator(II, SS.isValid() ? SS.getScopeRep() |
2283 | : nullptr); |
2284 | DefaultValidator.IsAddressOfOperand = IsAddressOfOperand; |
2285 | (0) . __assert_fail ("(!CCC || CCC->IsAddressOfOperand == IsAddressOfOperand) && \"Typo correction callback misconfigured\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2286, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((!CCC || CCC->IsAddressOfOperand == IsAddressOfOperand) && |
2286 | (0) . __assert_fail ("(!CCC || CCC->IsAddressOfOperand == IsAddressOfOperand) && \"Typo correction callback misconfigured\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2286, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Typo correction callback misconfigured"); |
2287 | if (CCC) { |
2288 | |
2289 | CCC->setTypoName(II); |
2290 | if (SS.isValid()) |
2291 | CCC->setTypoNNS(SS.getScopeRep()); |
2292 | } |
2293 | |
2294 | |
2295 | |
2296 | if (DiagnoseEmptyLookup(S, SS, R, CCC ? *CCC : DefaultValidator, nullptr, |
2297 | None, &TE)) { |
2298 | if (TE && KeywordReplacement) { |
2299 | auto &State = getTypoExprState(TE); |
2300 | auto BestTC = State.Consumer->getNextCorrection(); |
2301 | if (BestTC.isKeyword()) { |
2302 | auto *II = BestTC.getCorrectionAsIdentifierInfo(); |
2303 | if (State.DiagHandler) |
2304 | State.DiagHandler(BestTC); |
2305 | KeywordReplacement->startToken(); |
2306 | KeywordReplacement->setKind(II->getTokenID()); |
2307 | KeywordReplacement->setIdentifierInfo(II); |
2308 | KeywordReplacement->setLocation(BestTC.getCorrectionRange().getBegin()); |
2309 | |
2310 | |
2311 | clearDelayedTypo(TE); |
2312 | |
2313 | |
2314 | return (Expr*)nullptr; |
2315 | } |
2316 | State.Consumer->resetCorrectionStream(); |
2317 | } |
2318 | return TE ? TE : ExprError(); |
2319 | } |
2320 | |
2321 | (0) . __assert_fail ("!R.empty() && \"DiagnoseEmptyLookup returned false but added no results\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2322, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!R.empty() && |
2322 | (0) . __assert_fail ("!R.empty() && \"DiagnoseEmptyLookup returned false but added no results\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2322, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "DiagnoseEmptyLookup returned false but added no results"); |
2323 | |
2324 | |
2325 | |
2326 | |
2327 | if (ObjCIvarDecl *Ivar = R.getAsSingle<ObjCIvarDecl>()) { |
2328 | R.clear(); |
2329 | ExprResult E(LookupInObjCMethod(R, S, Ivar->getIdentifier())); |
2330 | |
2331 | |
2332 | if (!E.isInvalid() && !E.get()) |
2333 | return ExprError(); |
2334 | return E; |
2335 | } |
2336 | } |
2337 | |
2338 | |
2339 | assert(!R.empty() || ADL); |
2340 | |
2341 | |
2342 | |
2343 | |
2344 | |
2345 | |
2346 | |
2347 | |
2348 | |
2349 | |
2350 | |
2351 | |
2352 | |
2353 | |
2354 | |
2355 | |
2356 | |
2357 | |
2358 | |
2359 | |
2360 | |
2361 | |
2362 | |
2363 | |
2364 | |
2365 | if (!R.empty() && (*R.begin())->isCXXClassMember()) { |
2366 | bool MightBeImplicitMember; |
2367 | if (!IsAddressOfOperand) |
2368 | MightBeImplicitMember = true; |
2369 | else if (!SS.isEmpty()) |
2370 | MightBeImplicitMember = false; |
2371 | else if (R.isOverloadedResult()) |
2372 | MightBeImplicitMember = false; |
2373 | else if (R.isUnresolvableResult()) |
2374 | MightBeImplicitMember = true; |
2375 | else |
2376 | MightBeImplicitMember = isa<FieldDecl>(R.getFoundDecl()) || |
2377 | isa<IndirectFieldDecl>(R.getFoundDecl()) || |
2378 | isa<MSPropertyDecl>(R.getFoundDecl()); |
2379 | |
2380 | if (MightBeImplicitMember) |
2381 | return BuildPossibleImplicitMemberExpr(SS, TemplateKWLoc, |
2382 | R, TemplateArgs, S); |
2383 | } |
2384 | |
2385 | if (TemplateArgs || TemplateKWLoc.isValid()) { |
2386 | |
2387 | |
2388 | |
2389 | |
2390 | if (Id.getKind() == UnqualifiedIdKind::IK_TemplateId && Id.TemplateId && |
2391 | Id.TemplateId->Kind == TNK_Var_template) { |
2392 | (0) . __assert_fail ("R.getAsSingle() && \"There should only be one declaration found.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2393, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(R.getAsSingle<VarTemplateDecl>() && |
2393 | (0) . __assert_fail ("R.getAsSingle() && \"There should only be one declaration found.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2393, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "There should only be one declaration found."); |
2394 | } |
2395 | |
2396 | return BuildTemplateIdExpr(SS, TemplateKWLoc, R, ADL, TemplateArgs); |
2397 | } |
2398 | |
2399 | return BuildDeclarationNameExpr(SS, R, ADL); |
2400 | } |
2401 | |
2402 | |
2403 | |
2404 | |
2405 | |
2406 | ExprResult Sema::BuildQualifiedDeclarationNameExpr( |
2407 | CXXScopeSpec &SS, const DeclarationNameInfo &NameInfo, |
2408 | bool IsAddressOfOperand, const Scope *S, TypeSourceInfo **RecoveryTSI) { |
2409 | DeclContext *DC = computeDeclContext(SS, false); |
2410 | if (!DC) |
2411 | return BuildDependentDeclRefExpr(SS, (), |
2412 | NameInfo, ); |
2413 | |
2414 | if (RequireCompleteDeclContext(SS, DC)) |
2415 | return ExprError(); |
2416 | |
2417 | LookupResult R(*this, NameInfo, LookupOrdinaryName); |
2418 | LookupQualifiedName(R, DC); |
2419 | |
2420 | if (R.isAmbiguous()) |
2421 | return ExprError(); |
2422 | |
2423 | if (R.getResultKind() == LookupResult::NotFoundInCurrentInstantiation) |
2424 | return BuildDependentDeclRefExpr(SS, (), |
2425 | NameInfo, ); |
2426 | |
2427 | if (R.empty()) { |
2428 | Diag(NameInfo.getLoc(), diag::err_no_member) |
2429 | << NameInfo.getName() << DC << SS.getRange(); |
2430 | return ExprError(); |
2431 | } |
2432 | |
2433 | if (const TypeDecl *TD = R.getAsSingle<TypeDecl>()) { |
2434 | |
2435 | |
2436 | |
2437 | unsigned DiagID = diag::err_typename_missing; |
2438 | if (RecoveryTSI && getLangOpts().MSVCCompat) |
2439 | DiagID = diag::ext_typename_missing; |
2440 | SourceLocation Loc = SS.getBeginLoc(); |
2441 | auto D = Diag(Loc, DiagID); |
2442 | D << SS.getScopeRep() << NameInfo.getName().getAsString() |
2443 | << SourceRange(Loc, NameInfo.getEndLoc()); |
2444 | |
2445 | |
2446 | |
2447 | if (!RecoveryTSI) |
2448 | return ExprError(); |
2449 | |
2450 | |
2451 | D << FixItHint::CreateInsertion(Loc, "typename "); |
2452 | |
2453 | |
2454 | QualType Ty = Context.getTypeDeclType(TD); |
2455 | TypeLocBuilder TLB; |
2456 | TLB.pushTypeSpec(Ty).setNameLoc(NameInfo.getLoc()); |
2457 | |
2458 | QualType ET = getElaboratedType(ETK_None, SS, Ty); |
2459 | ElaboratedTypeLoc QTL = TLB.push<ElaboratedTypeLoc>(ET); |
2460 | QTL.setElaboratedKeywordLoc(SourceLocation()); |
2461 | QTL.setQualifierLoc(SS.getWithLocInContext(Context)); |
2462 | |
2463 | *RecoveryTSI = TLB.getTypeSourceInfo(Context, ET); |
2464 | |
2465 | return ExprEmpty(); |
2466 | } |
2467 | |
2468 | |
2469 | |
2470 | |
2471 | |
2472 | if (!R.empty() && (*R.begin())->isCXXClassMember() && !IsAddressOfOperand) |
2473 | return BuildPossibleImplicitMemberExpr(SS, |
2474 | (), |
2475 | R, , S); |
2476 | |
2477 | return BuildDeclarationNameExpr(SS, R, false); |
2478 | } |
2479 | |
2480 | |
2481 | |
2482 | |
2483 | |
2484 | |
2485 | |
2486 | |
2487 | |
2488 | ExprResult |
2489 | Sema::LookupInObjCMethod(LookupResult &Lookup, Scope *S, |
2490 | IdentifierInfo *II, bool AllowBuiltinCreation) { |
2491 | SourceLocation Loc = Lookup.getNameLoc(); |
2492 | ObjCMethodDecl *CurMethod = getCurMethodDecl(); |
2493 | |
2494 | |
2495 | if (!CurMethod) |
2496 | return ExprError(); |
2497 | |
2498 | |
2499 | |
2500 | |
2501 | |
2502 | |
2503 | |
2504 | |
2505 | |
2506 | |
2507 | bool IsClassMethod = CurMethod->isClassMethod(); |
2508 | |
2509 | bool LookForIvars; |
2510 | if (Lookup.empty()) |
2511 | LookForIvars = true; |
2512 | else if (IsClassMethod) |
2513 | LookForIvars = false; |
2514 | else |
2515 | LookForIvars = (Lookup.isSingleResult() && |
2516 | Lookup.getFoundDecl()->isDefinedOutsideFunctionOrMethod()); |
2517 | ObjCInterfaceDecl *IFace = nullptr; |
2518 | if (LookForIvars) { |
2519 | IFace = CurMethod->getClassInterface(); |
2520 | ObjCInterfaceDecl *ClassDeclared; |
2521 | ObjCIvarDecl *IV = nullptr; |
2522 | if (IFace && (IV = IFace->lookupInstanceVariable(II, ClassDeclared))) { |
2523 | |
2524 | if (IsClassMethod) |
2525 | return ExprError(Diag(Loc, diag::err_ivar_use_in_class_method) |
2526 | << IV->getDeclName()); |
2527 | |
2528 | |
2529 | |
2530 | if (IV->isInvalidDecl()) |
2531 | return ExprError(); |
2532 | |
2533 | |
2534 | if (DiagnoseUseOfDecl(IV, Loc)) |
2535 | return ExprError(); |
2536 | |
2537 | |
2538 | if (IV->getAccessControl() == ObjCIvarDecl::Private && |
2539 | !declaresSameEntity(ClassDeclared, IFace) && |
2540 | !getLangOpts().DebuggerSupport) |
2541 | Diag(Loc, diag::err_private_ivar_access) << IV->getDeclName(); |
2542 | |
2543 | |
2544 | |
2545 | IdentifierInfo &II = Context.Idents.get("self"); |
2546 | UnqualifiedId SelfName; |
2547 | SelfName.setIdentifier(&II, SourceLocation()); |
2548 | SelfName.setKind(UnqualifiedIdKind::IK_ImplicitSelfParam); |
2549 | CXXScopeSpec SelfScopeSpec; |
2550 | SourceLocation TemplateKWLoc; |
2551 | ExprResult SelfExpr = |
2552 | ActOnIdExpression(S, SelfScopeSpec, TemplateKWLoc, SelfName, |
2553 | , |
2554 | ); |
2555 | if (SelfExpr.isInvalid()) |
2556 | return ExprError(); |
2557 | |
2558 | SelfExpr = DefaultLvalueConversion(SelfExpr.get()); |
2559 | if (SelfExpr.isInvalid()) |
2560 | return ExprError(); |
2561 | |
2562 | MarkAnyDeclReferenced(Loc, IV, true); |
2563 | |
2564 | ObjCMethodFamily MF = CurMethod->getMethodFamily(); |
2565 | if (MF != OMF_init && MF != OMF_dealloc && MF != OMF_finalize && |
2566 | !IvarBacksCurrentMethodAccessor(IFace, CurMethod, IV)) |
2567 | Diag(Loc, diag::warn_direct_ivar_access) << IV->getDeclName(); |
2568 | |
2569 | ObjCIvarRefExpr *Result = new (Context) |
2570 | ObjCIvarRefExpr(IV, IV->getUsageType(SelfExpr.get()->getType()), Loc, |
2571 | IV->getLocation(), SelfExpr.get(), true, true); |
2572 | |
2573 | if (IV->getType().getObjCLifetime() == Qualifiers::OCL_Weak) { |
2574 | if (!isUnevaluatedContext() && |
2575 | !Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, Loc)) |
2576 | getCurFunction()->recordUseOfWeak(Result); |
2577 | } |
2578 | if (getLangOpts().ObjCAutoRefCount) { |
2579 | if (CurContext->isClosure()) |
2580 | Diag(Loc, diag::warn_implicitly_retains_self) |
2581 | << FixItHint::CreateInsertion(Loc, "self->"); |
2582 | } |
2583 | |
2584 | return Result; |
2585 | } |
2586 | } else if (CurMethod->isInstanceMethod()) { |
2587 | |
2588 | if (ObjCInterfaceDecl *IFace = CurMethod->getClassInterface()) { |
2589 | ObjCInterfaceDecl *ClassDeclared; |
2590 | if (ObjCIvarDecl *IV = IFace->lookupInstanceVariable(II, ClassDeclared)) { |
2591 | if (IV->getAccessControl() != ObjCIvarDecl::Private || |
2592 | declaresSameEntity(IFace, ClassDeclared)) |
2593 | Diag(Loc, diag::warn_ivar_use_hidden) << IV->getDeclName(); |
2594 | } |
2595 | } |
2596 | } else if (Lookup.isSingleResult() && |
2597 | Lookup.getFoundDecl()->isDefinedOutsideFunctionOrMethod()) { |
2598 | |
2599 | if (const ObjCIvarDecl *IV = dyn_cast<ObjCIvarDecl>(Lookup.getFoundDecl())) |
2600 | return ExprError(Diag(Loc, diag::err_ivar_use_in_class_method) |
2601 | << IV->getDeclName()); |
2602 | } |
2603 | |
2604 | if (Lookup.empty() && II && AllowBuiltinCreation) { |
2605 | |
2606 | if (unsigned BuiltinID = II->getBuiltinID()) { |
2607 | if (!(getLangOpts().CPlusPlus && |
2608 | Context.BuiltinInfo.isPredefinedLibFunction(BuiltinID))) { |
2609 | NamedDecl *D = LazilyCreateBuiltin((IdentifierInfo *)II, BuiltinID, |
2610 | S, Lookup.isForRedeclaration(), |
2611 | Lookup.getNameLoc()); |
2612 | if (D) Lookup.addDecl(D); |
2613 | } |
2614 | } |
2615 | } |
2616 | |
2617 | return ExprResult((Expr *)nullptr); |
2618 | } |
2619 | |
2620 | |
2621 | |
2622 | |
2623 | |
2624 | |
2625 | |
2626 | |
2627 | |
2628 | |
2629 | |
2630 | |
2631 | |
2632 | |
2633 | |
2634 | |
2635 | |
2636 | |
2637 | ExprResult |
2638 | Sema::PerformObjectMemberConversion(Expr *From, |
2639 | NestedNameSpecifier *Qualifier, |
2640 | NamedDecl *FoundDecl, |
2641 | NamedDecl *Member) { |
2642 | CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(Member->getDeclContext()); |
2643 | if (!RD) |
2644 | return From; |
2645 | |
2646 | QualType DestRecordType; |
2647 | QualType DestType; |
2648 | QualType FromRecordType; |
2649 | QualType FromType = From->getType(); |
2650 | bool PointerConversions = false; |
2651 | if (isa<FieldDecl>(Member)) { |
2652 | DestRecordType = Context.getCanonicalType(Context.getTypeDeclType(RD)); |
2653 | auto FromPtrType = FromType->getAs<PointerType>(); |
2654 | DestRecordType = Context.getAddrSpaceQualType( |
2655 | DestRecordType, FromPtrType |
2656 | ? FromType->getPointeeType().getAddressSpace() |
2657 | : FromType.getAddressSpace()); |
2658 | |
2659 | if (FromPtrType) { |
2660 | DestType = Context.getPointerType(DestRecordType); |
2661 | FromRecordType = FromPtrType->getPointeeType(); |
2662 | PointerConversions = true; |
2663 | } else { |
2664 | DestType = DestRecordType; |
2665 | FromRecordType = FromType; |
2666 | } |
2667 | } else if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(Member)) { |
2668 | if (Method->isStatic()) |
2669 | return From; |
2670 | |
2671 | DestType = Method->getThisType(); |
2672 | DestRecordType = DestType->getPointeeType(); |
2673 | |
2674 | if (FromType->getAs<PointerType>()) { |
2675 | FromRecordType = FromType->getPointeeType(); |
2676 | PointerConversions = true; |
2677 | } else { |
2678 | FromRecordType = FromType; |
2679 | DestType = DestRecordType; |
2680 | } |
2681 | } else { |
2682 | |
2683 | return From; |
2684 | } |
2685 | |
2686 | if (DestType->isDependentType() || FromType->isDependentType()) |
2687 | return From; |
2688 | |
2689 | |
2690 | if (Context.hasSameUnqualifiedType(FromRecordType, DestRecordType)) |
2691 | return From; |
2692 | |
2693 | SourceRange FromRange = From->getSourceRange(); |
2694 | SourceLocation FromLoc = FromRange.getBegin(); |
2695 | |
2696 | ExprValueKind VK = From->getValueKind(); |
2697 | |
2698 | |
2699 | |
2700 | |
2701 | |
2702 | |
2703 | |
2704 | |
2705 | |
2706 | |
2707 | |
2708 | |
2709 | |
2710 | |
2711 | |
2712 | |
2713 | |
2714 | |
2715 | |
2716 | if (Qualifier && Qualifier->getAsType()) { |
2717 | QualType QType = QualType(Qualifier->getAsType(), 0); |
2718 | (0) . __assert_fail ("QType->isRecordType() && \"lookup done with non-record type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2718, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(QType->isRecordType() && "lookup done with non-record type"); |
2719 | |
2720 | QualType QRecordType = QualType(QType->getAs<RecordType>(), 0); |
2721 | |
2722 | |
2723 | |
2724 | |
2725 | if (IsDerivedFrom(FromLoc, FromRecordType, QRecordType)) { |
2726 | CXXCastPath BasePath; |
2727 | if (CheckDerivedToBaseConversion(FromRecordType, QRecordType, |
2728 | FromLoc, FromRange, &BasePath)) |
2729 | return ExprError(); |
2730 | |
2731 | if (PointerConversions) |
2732 | QType = Context.getPointerType(QType); |
2733 | From = ImpCastExprToType(From, QType, CK_UncheckedDerivedToBase, |
2734 | VK, &BasePath).get(); |
2735 | |
2736 | FromType = QType; |
2737 | FromRecordType = QRecordType; |
2738 | |
2739 | |
2740 | |
2741 | if (Context.hasSameUnqualifiedType(FromRecordType, DestRecordType)) |
2742 | return From; |
2743 | } |
2744 | } |
2745 | |
2746 | bool IgnoreAccess = false; |
2747 | |
2748 | |
2749 | |
2750 | |
2751 | |
2752 | |
2753 | if (FoundDecl->getDeclContext() != Member->getDeclContext()) { |
2754 | (FoundDecl)", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2754, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isa<UsingShadowDecl>(FoundDecl)); |
2755 | QualType URecordType = Context.getTypeDeclType( |
2756 | cast<CXXRecordDecl>(FoundDecl->getDeclContext())); |
2757 | |
2758 | |
2759 | |
2760 | if (!Context.hasSameUnqualifiedType(FromRecordType, URecordType)) { |
2761 | assert(IsDerivedFrom(FromLoc, FromRecordType, URecordType)); |
2762 | CXXCastPath BasePath; |
2763 | if (CheckDerivedToBaseConversion(FromRecordType, URecordType, |
2764 | FromLoc, FromRange, &BasePath)) |
2765 | return ExprError(); |
2766 | |
2767 | QualType UType = URecordType; |
2768 | if (PointerConversions) |
2769 | UType = Context.getPointerType(UType); |
2770 | From = ImpCastExprToType(From, UType, CK_UncheckedDerivedToBase, |
2771 | VK, &BasePath).get(); |
2772 | FromType = UType; |
2773 | FromRecordType = URecordType; |
2774 | } |
2775 | |
2776 | |
2777 | |
2778 | IgnoreAccess = true; |
2779 | } |
2780 | |
2781 | CXXCastPath BasePath; |
2782 | if (CheckDerivedToBaseConversion(FromRecordType, DestRecordType, |
2783 | FromLoc, FromRange, &BasePath, |
2784 | IgnoreAccess)) |
2785 | return ExprError(); |
2786 | |
2787 | return ImpCastExprToType(From, DestType, CK_UncheckedDerivedToBase, |
2788 | VK, &BasePath); |
2789 | } |
2790 | |
2791 | bool Sema::UseArgumentDependentLookup(const CXXScopeSpec &SS, |
2792 | const LookupResult &R, |
2793 | bool HasTrailingLParen) { |
2794 | |
2795 | if (!HasTrailingLParen) |
2796 | return false; |
2797 | |
2798 | |
2799 | if (SS.isSet()) |
2800 | return false; |
2801 | |
2802 | |
2803 | if (!getLangOpts().CPlusPlus) |
2804 | return false; |
2805 | |
2806 | |
2807 | |
2808 | for (NamedDecl *D : R) { |
2809 | |
2810 | |
2811 | |
2812 | |
2813 | if (D->isCXXClassMember()) |
2814 | return false; |
2815 | |
2816 | |
2817 | |
2818 | |
2819 | |
2820 | |
2821 | |
2822 | if (isa<UsingShadowDecl>(D)) |
2823 | D = cast<UsingShadowDecl>(D)->getTargetDecl(); |
2824 | else if (D->getLexicalDeclContext()->isFunctionOrMethod()) |
2825 | return false; |
2826 | |
2827 | |
2828 | |
2829 | |
2830 | |
2831 | if (isa<FunctionDecl>(D)) { |
2832 | FunctionDecl *FDecl = cast<FunctionDecl>(D); |
2833 | |
2834 | |
2835 | if (FDecl->getBuiltinID() && FDecl->isImplicit()) |
2836 | return false; |
2837 | } else if (!isa<FunctionTemplateDecl>(D)) |
2838 | return false; |
2839 | } |
2840 | |
2841 | return true; |
2842 | } |
2843 | |
2844 | |
2845 | |
2846 | |
2847 | |
2848 | |
2849 | static bool CheckDeclInExpr(Sema &S, SourceLocation Loc, NamedDecl *D) { |
2850 | if (D->isInvalidDecl()) |
2851 | return true; |
2852 | |
2853 | if (isa<TypedefNameDecl>(D)) { |
2854 | S.Diag(Loc, diag::err_unexpected_typedef) << D->getDeclName(); |
2855 | return true; |
2856 | } |
2857 | |
2858 | if (isa<ObjCInterfaceDecl>(D)) { |
2859 | S.Diag(Loc, diag::err_unexpected_interface) << D->getDeclName(); |
2860 | return true; |
2861 | } |
2862 | |
2863 | if (isa<NamespaceDecl>(D)) { |
2864 | S.Diag(Loc, diag::err_unexpected_namespace) << D->getDeclName(); |
2865 | return true; |
2866 | } |
2867 | |
2868 | return false; |
2869 | } |
2870 | |
2871 | |
2872 | |
2873 | static bool ShouldLookupResultBeMultiVersionOverload(const LookupResult &R) { |
2874 | (0) . __assert_fail ("R.isSingleResult() && \"Expected only a single result\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2874, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(R.isSingleResult() && "Expected only a single result"); |
2875 | const auto *FD = dyn_cast<FunctionDecl>(R.getFoundDecl()); |
2876 | return FD && |
2877 | (FD->isCPUDispatchMultiVersion() || FD->isCPUSpecificMultiVersion()); |
2878 | } |
2879 | |
2880 | ExprResult Sema::BuildDeclarationNameExpr(const CXXScopeSpec &SS, |
2881 | LookupResult &R, bool NeedsADL, |
2882 | bool AcceptInvalidDecl) { |
2883 | |
2884 | |
2885 | if (!NeedsADL && R.isSingleResult() && |
2886 | !R.getAsSingle<FunctionTemplateDecl>() && |
2887 | !ShouldLookupResultBeMultiVersionOverload(R)) |
2888 | return BuildDeclarationNameExpr(SS, R.getLookupNameInfo(), R.getFoundDecl(), |
2889 | R.getRepresentativeDecl(), nullptr, |
2890 | AcceptInvalidDecl); |
2891 | |
2892 | |
2893 | |
2894 | |
2895 | if (R.isSingleResult() && !ShouldLookupResultBeMultiVersionOverload(R) && |
2896 | CheckDeclInExpr(*this, R.getNameLoc(), R.getFoundDecl())) |
2897 | return ExprError(); |
2898 | |
2899 | |
2900 | |
2901 | |
2902 | R.suppressDiagnostics(); |
2903 | |
2904 | UnresolvedLookupExpr *ULE |
2905 | = UnresolvedLookupExpr::Create(Context, R.getNamingClass(), |
2906 | SS.getWithLocInContext(Context), |
2907 | R.getLookupNameInfo(), |
2908 | NeedsADL, R.isOverloadedResult(), |
2909 | R.begin(), R.end()); |
2910 | |
2911 | return ULE; |
2912 | } |
2913 | |
2914 | static void |
2915 | diagnoseUncapturableValueReference(Sema &S, SourceLocation loc, |
2916 | ValueDecl *var, DeclContext *DC); |
2917 | |
2918 | |
2919 | ExprResult Sema::BuildDeclarationNameExpr( |
2920 | const CXXScopeSpec &SS, const DeclarationNameInfo &NameInfo, NamedDecl *D, |
2921 | NamedDecl *FoundD, const TemplateArgumentListInfo *TemplateArgs, |
2922 | bool AcceptInvalidDecl) { |
2923 | (0) . __assert_fail ("D && \"Cannot refer to a NULL declaration\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2923, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(D && "Cannot refer to a NULL declaration"); |
2924 | (0) . __assert_fail ("!isa(D) && \"Cannot refer unambiguously to a function template\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2925, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!isa<FunctionTemplateDecl>(D) && |
2925 | (0) . __assert_fail ("!isa(D) && \"Cannot refer unambiguously to a function template\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 2925, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Cannot refer unambiguously to a function template"); |
2926 | |
2927 | SourceLocation Loc = NameInfo.getLoc(); |
2928 | if (CheckDeclInExpr(*this, Loc, D)) |
2929 | return ExprError(); |
2930 | |
2931 | if (TemplateDecl *Template = dyn_cast<TemplateDecl>(D)) { |
2932 | |
2933 | |
2934 | diagnoseMissingTemplateArguments(TemplateName(Template), Loc); |
2935 | return ExprError(); |
2936 | } |
2937 | |
2938 | |
2939 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
2940 | if (!VD) { |
2941 | Diag(Loc, diag::err_ref_non_value) |
2942 | << D << SS.getRange(); |
2943 | Diag(D->getLocation(), diag::note_declared_at); |
2944 | return ExprError(); |
2945 | } |
2946 | |
2947 | |
2948 | |
2949 | |
2950 | |
2951 | if (DiagnoseUseOfDecl(VD, Loc)) |
2952 | return ExprError(); |
2953 | |
2954 | |
2955 | if (VD->isInvalidDecl() && !AcceptInvalidDecl) |
2956 | return ExprError(); |
2957 | |
2958 | |
2959 | |
2960 | |
2961 | if (IndirectFieldDecl *indirectField = dyn_cast<IndirectFieldDecl>(VD)) |
2962 | if (!indirectField->isCXXClassMember()) |
2963 | return BuildAnonymousStructUnionMemberReference(SS, NameInfo.getLoc(), |
2964 | indirectField); |
2965 | |
2966 | { |
2967 | QualType type = VD->getType(); |
2968 | if (type.isNull()) |
2969 | return ExprError(); |
2970 | if (auto *FPT = type->getAs<FunctionProtoType>()) { |
2971 | |
2972 | |
2973 | |
2974 | |
2975 | ResolveExceptionSpec(Loc, FPT); |
2976 | type = VD->getType(); |
2977 | } |
2978 | ExprValueKind valueKind = VK_RValue; |
2979 | |
2980 | switch (D->getKind()) { |
2981 | |
2982 | #define ABSTRACT_DECL(kind) |
2983 | #define VALUE(type, base) |
2984 | #define DECL(type, base) \ |
2985 | case Decl::type: |
2986 | #include "clang/AST/DeclNodes.inc" |
2987 | llvm_unreachable("invalid value decl kind"); |
2988 | |
2989 | |
2990 | case Decl::ObjCAtDefsField: |
2991 | llvm_unreachable("forming non-member reference to ivar?"); |
2992 | |
2993 | |
2994 | |
2995 | case Decl::EnumConstant: |
2996 | case Decl::UnresolvedUsingValue: |
2997 | case Decl::OMPDeclareReduction: |
2998 | case Decl::OMPDeclareMapper: |
2999 | valueKind = VK_RValue; |
3000 | break; |
3001 | |
3002 | |
3003 | |
3004 | |
3005 | |
3006 | case Decl::Field: |
3007 | case Decl::IndirectField: |
3008 | case Decl::ObjCIvar: |
3009 | (0) . __assert_fail ("getLangOpts().CPlusPlus && \"building reference to field in C?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3010, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(getLangOpts().CPlusPlus && |
3010 | (0) . __assert_fail ("getLangOpts().CPlusPlus && \"building reference to field in C?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3010, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "building reference to field in C?"); |
3011 | |
3012 | |
3013 | |
3014 | type = type.getNonReferenceType(); |
3015 | valueKind = VK_LValue; |
3016 | break; |
3017 | |
3018 | |
3019 | |
3020 | case Decl::NonTypeTemplateParm: { |
3021 | if (const ReferenceType *reftype = type->getAs<ReferenceType>()) { |
3022 | type = reftype->getPointeeType(); |
3023 | valueKind = VK_LValue; |
3024 | break; |
3025 | } |
3026 | |
3027 | |
3028 | |
3029 | valueKind = VK_RValue; |
3030 | type = type.getUnqualifiedType(); |
3031 | break; |
3032 | } |
3033 | |
3034 | case Decl::Var: |
3035 | case Decl::VarTemplateSpecialization: |
3036 | case Decl::VarTemplatePartialSpecialization: |
3037 | case Decl::Decomposition: |
3038 | case Decl::OMPCapturedExpr: |
3039 | |
3040 | if (!getLangOpts().CPlusPlus && |
3041 | !type.hasQualifiers() && |
3042 | type->isVoidType()) { |
3043 | valueKind = VK_RValue; |
3044 | break; |
3045 | } |
3046 | LLVM_FALLTHROUGH; |
3047 | |
3048 | case Decl::ImplicitParam: |
3049 | case Decl::ParmVar: { |
3050 | |
3051 | valueKind = VK_LValue; |
3052 | type = type.getNonReferenceType(); |
3053 | |
3054 | |
3055 | |
3056 | |
3057 | if (!isUnevaluatedContext()) { |
3058 | QualType CapturedType = getCapturedDeclRefType(cast<VarDecl>(VD), Loc); |
3059 | if (!CapturedType.isNull()) |
3060 | type = CapturedType; |
3061 | } |
3062 | |
3063 | break; |
3064 | } |
3065 | |
3066 | case Decl::Binding: { |
3067 | |
3068 | valueKind = VK_LValue; |
3069 | type = type.getNonReferenceType(); |
3070 | |
3071 | |
3072 | auto *BD = cast<BindingDecl>(VD); |
3073 | if (BD->getDeclContext()->isFunctionOrMethod() && |
3074 | BD->getDeclContext() != CurContext) |
3075 | diagnoseUncapturableValueReference(*this, Loc, BD, CurContext); |
3076 | break; |
3077 | } |
3078 | |
3079 | case Decl::Function: { |
3080 | if (unsigned BID = cast<FunctionDecl>(VD)->getBuiltinID()) { |
3081 | if (!Context.BuiltinInfo.isPredefinedLibFunction(BID)) { |
3082 | type = Context.BuiltinFnTy; |
3083 | valueKind = VK_RValue; |
3084 | break; |
3085 | } |
3086 | } |
3087 | |
3088 | const FunctionType *fty = type->castAs<FunctionType>(); |
3089 | |
3090 | |
3091 | |
3092 | if (fty->getReturnType() == Context.UnknownAnyTy) { |
3093 | type = Context.UnknownAnyTy; |
3094 | valueKind = VK_RValue; |
3095 | break; |
3096 | } |
3097 | |
3098 | |
3099 | if (getLangOpts().CPlusPlus) { |
3100 | valueKind = VK_LValue; |
3101 | break; |
3102 | } |
3103 | |
3104 | |
3105 | |
3106 | |
3107 | |
3108 | |
3109 | if (!cast<FunctionDecl>(VD)->hasPrototype() && |
3110 | isa<FunctionProtoType>(fty)) |
3111 | type = Context.getFunctionNoProtoType(fty->getReturnType(), |
3112 | fty->getExtInfo()); |
3113 | |
3114 | |
3115 | valueKind = VK_RValue; |
3116 | break; |
3117 | } |
3118 | |
3119 | case Decl::CXXDeductionGuide: |
3120 | llvm_unreachable("building reference to deduction guide"); |
3121 | |
3122 | case Decl::MSProperty: |
3123 | valueKind = VK_LValue; |
3124 | break; |
3125 | |
3126 | case Decl::CXXMethod: |
3127 | |
3128 | |
3129 | |
3130 | if (const FunctionProtoType *proto |
3131 | = dyn_cast<FunctionProtoType>(VD->getType())) |
3132 | if (proto->getReturnType() == Context.UnknownAnyTy) { |
3133 | type = Context.UnknownAnyTy; |
3134 | valueKind = VK_RValue; |
3135 | break; |
3136 | } |
3137 | |
3138 | |
3139 | if (cast<CXXMethodDecl>(VD)->isStatic()) { |
3140 | valueKind = VK_LValue; |
3141 | break; |
3142 | } |
3143 | LLVM_FALLTHROUGH; |
3144 | |
3145 | case Decl::CXXConversion: |
3146 | case Decl::CXXDestructor: |
3147 | case Decl::CXXConstructor: |
3148 | valueKind = VK_RValue; |
3149 | break; |
3150 | } |
3151 | |
3152 | return BuildDeclRefExpr(VD, type, valueKind, NameInfo, &SS, FoundD, |
3153 | TemplateArgs); |
3154 | } |
3155 | } |
3156 | |
3157 | static void ConvertUTF8ToWideString(unsigned CharByteWidth, StringRef Source, |
3158 | SmallString<32> &Target) { |
3159 | Target.resize(CharByteWidth * (Source.size() + 1)); |
3160 | char *ResultPtr = &Target[0]; |
3161 | const llvm::UTF8 *ErrorPtr; |
3162 | bool success = |
3163 | llvm::ConvertUTF8toWide(CharByteWidth, Source, ResultPtr, ErrorPtr); |
3164 | (void)success; |
3165 | assert(success); |
3166 | Target.resize(ResultPtr - &Target[0]); |
3167 | } |
3168 | |
3169 | ExprResult Sema::BuildPredefinedExpr(SourceLocation Loc, |
3170 | PredefinedExpr::IdentKind IK) { |
3171 | |
3172 | Decl *currentDecl = nullptr; |
3173 | if (const BlockScopeInfo *BSI = getCurBlock()) |
3174 | currentDecl = BSI->TheDecl; |
3175 | else if (const LambdaScopeInfo *LSI = getCurLambda()) |
3176 | currentDecl = LSI->CallOperator; |
3177 | else if (const CapturedRegionScopeInfo *CSI = getCurCapturedRegion()) |
3178 | currentDecl = CSI->TheCapturedDecl; |
3179 | else |
3180 | currentDecl = getCurFunctionOrMethodDecl(); |
3181 | |
3182 | if (!currentDecl) { |
3183 | Diag(Loc, diag::ext_predef_outside_function); |
3184 | currentDecl = Context.getTranslationUnitDecl(); |
3185 | } |
3186 | |
3187 | QualType ResTy; |
3188 | StringLiteral *SL = nullptr; |
3189 | if (cast<DeclContext>(currentDecl)->isDependentContext()) |
3190 | ResTy = Context.DependentTy; |
3191 | else { |
3192 | |
3193 | |
3194 | auto Str = PredefinedExpr::ComputeName(IK, currentDecl); |
3195 | unsigned Length = Str.length(); |
3196 | |
3197 | llvm::APInt LengthI(32, Length + 1); |
3198 | if (IK == PredefinedExpr::LFunction || IK == PredefinedExpr::LFuncSig) { |
3199 | ResTy = |
3200 | Context.adjustStringLiteralBaseType(Context.WideCharTy.withConst()); |
3201 | SmallString<32> RawChars; |
3202 | ConvertUTF8ToWideString(Context.getTypeSizeInChars(ResTy).getQuantity(), |
3203 | Str, RawChars); |
3204 | ResTy = Context.getConstantArrayType(ResTy, LengthI, ArrayType::Normal, |
3205 | 0); |
3206 | SL = StringLiteral::Create(Context, RawChars, StringLiteral::Wide, |
3207 | false, ResTy, Loc); |
3208 | } else { |
3209 | ResTy = Context.adjustStringLiteralBaseType(Context.CharTy.withConst()); |
3210 | ResTy = Context.getConstantArrayType(ResTy, LengthI, ArrayType::Normal, |
3211 | 0); |
3212 | SL = StringLiteral::Create(Context, Str, StringLiteral::Ascii, |
3213 | false, ResTy, Loc); |
3214 | } |
3215 | } |
3216 | |
3217 | return PredefinedExpr::Create(Context, Loc, ResTy, IK, SL); |
3218 | } |
3219 | |
3220 | ExprResult Sema::ActOnPredefinedExpr(SourceLocation Loc, tok::TokenKind Kind) { |
3221 | PredefinedExpr::IdentKind IK; |
3222 | |
3223 | switch (Kind) { |
3224 | default: llvm_unreachable("Unknown simple primary expr!"); |
3225 | case tok::kw___func__: IK = PredefinedExpr::Func; break; |
3226 | case tok::kw___FUNCTION__: IK = PredefinedExpr::Function; break; |
3227 | case tok::kw___FUNCDNAME__: IK = PredefinedExpr::FuncDName; break; |
3228 | case tok::kw___FUNCSIG__: IK = PredefinedExpr::FuncSig; break; |
3229 | case tok::kw_L__FUNCTION__: IK = PredefinedExpr::LFunction; break; |
3230 | case tok::kw_L__FUNCSIG__: IK = PredefinedExpr::LFuncSig; break; |
3231 | case tok::kw___PRETTY_FUNCTION__: IK = PredefinedExpr::PrettyFunction; break; |
3232 | } |
3233 | |
3234 | return BuildPredefinedExpr(Loc, IK); |
3235 | } |
3236 | |
3237 | ExprResult Sema::ActOnCharacterConstant(const Token &Tok, Scope *UDLScope) { |
3238 | SmallString<16> CharBuffer; |
3239 | bool Invalid = false; |
3240 | StringRef ThisTok = PP.getSpelling(Tok, CharBuffer, &Invalid); |
3241 | if (Invalid) |
3242 | return ExprError(); |
3243 | |
3244 | CharLiteralParser Literal(ThisTok.begin(), ThisTok.end(), Tok.getLocation(), |
3245 | PP, Tok.getKind()); |
3246 | if (Literal.hadError()) |
3247 | return ExprError(); |
3248 | |
3249 | QualType Ty; |
3250 | if (Literal.isWide()) |
3251 | Ty = Context.WideCharTy; |
3252 | else if (Literal.isUTF8() && getLangOpts().Char8) |
3253 | Ty = Context.Char8Ty; |
3254 | else if (Literal.isUTF16()) |
3255 | Ty = Context.Char16Ty; |
3256 | else if (Literal.isUTF32()) |
3257 | Ty = Context.Char32Ty; |
3258 | else if (!getLangOpts().CPlusPlus || Literal.isMultiChar()) |
3259 | Ty = Context.IntTy; |
3260 | else |
3261 | Ty = Context.CharTy; |
3262 | |
3263 | CharacterLiteral::CharacterKind Kind = CharacterLiteral::Ascii; |
3264 | if (Literal.isWide()) |
3265 | Kind = CharacterLiteral::Wide; |
3266 | else if (Literal.isUTF16()) |
3267 | Kind = CharacterLiteral::UTF16; |
3268 | else if (Literal.isUTF32()) |
3269 | Kind = CharacterLiteral::UTF32; |
3270 | else if (Literal.isUTF8()) |
3271 | Kind = CharacterLiteral::UTF8; |
3272 | |
3273 | Expr *Lit = new (Context) CharacterLiteral(Literal.getValue(), Kind, Ty, |
3274 | Tok.getLocation()); |
3275 | |
3276 | if (Literal.getUDSuffix().empty()) |
3277 | return Lit; |
3278 | |
3279 | |
3280 | IdentifierInfo *UDSuffix = &Context.Idents.get(Literal.getUDSuffix()); |
3281 | SourceLocation UDSuffixLoc = |
3282 | getUDSuffixLoc(*this, Tok.getLocation(), Literal.getUDSuffixOffset()); |
3283 | |
3284 | |
3285 | if (!UDLScope) |
3286 | return ExprError(Diag(UDSuffixLoc, diag::err_invalid_character_udl)); |
3287 | |
3288 | |
3289 | |
3290 | return BuildCookedLiteralOperatorCall(*this, UDLScope, UDSuffix, UDSuffixLoc, |
3291 | Lit, Tok.getLocation()); |
3292 | } |
3293 | |
3294 | ExprResult Sema::ActOnIntegerConstant(SourceLocation Loc, uint64_t Val) { |
3295 | unsigned IntSize = Context.getTargetInfo().getIntWidth(); |
3296 | return IntegerLiteral::Create(Context, llvm::APInt(IntSize, Val), |
3297 | Context.IntTy, Loc); |
3298 | } |
3299 | |
3300 | static Expr *BuildFloatingLiteral(Sema &S, NumericLiteralParser &Literal, |
3301 | QualType Ty, SourceLocation Loc) { |
3302 | const llvm::fltSemantics &Format = S.Context.getFloatTypeSemantics(Ty); |
3303 | |
3304 | using llvm::APFloat; |
3305 | APFloat Val(Format); |
3306 | |
3307 | APFloat::opStatus result = Literal.GetFloatValue(Val); |
3308 | |
3309 | |
3310 | |
3311 | if ((result & APFloat::opOverflow) || |
3312 | ((result & APFloat::opUnderflow) && Val.isZero())) { |
3313 | unsigned diagnostic; |
3314 | SmallString<20> buffer; |
3315 | if (result & APFloat::opOverflow) { |
3316 | diagnostic = diag::warn_float_overflow; |
3317 | APFloat::getLargest(Format).toString(buffer); |
3318 | } else { |
3319 | diagnostic = diag::warn_float_underflow; |
3320 | APFloat::getSmallest(Format).toString(buffer); |
3321 | } |
3322 | |
3323 | S.Diag(Loc, diagnostic) |
3324 | << Ty |
3325 | << StringRef(buffer.data(), buffer.size()); |
3326 | } |
3327 | |
3328 | bool isExact = (result == APFloat::opOK); |
3329 | return FloatingLiteral::Create(S.Context, Val, isExact, Ty, Loc); |
3330 | } |
3331 | |
3332 | bool Sema::CheckLoopHintExpr(Expr *E, SourceLocation Loc) { |
3333 | (0) . __assert_fail ("E && \"Invalid expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3333, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E && "Invalid expression"); |
3334 | |
3335 | if (E->isValueDependent()) |
3336 | return false; |
3337 | |
3338 | QualType QT = E->getType(); |
3339 | if (!QT->isIntegerType() || QT->isBooleanType() || QT->isCharType()) { |
3340 | Diag(E->getExprLoc(), diag::err_pragma_loop_invalid_argument_type) << QT; |
3341 | return true; |
3342 | } |
3343 | |
3344 | llvm::APSInt ValueAPS; |
3345 | ExprResult R = VerifyIntegerConstantExpression(E, &ValueAPS); |
3346 | |
3347 | if (R.isInvalid()) |
3348 | return true; |
3349 | |
3350 | bool ValueIsPositive = ValueAPS.isStrictlyPositive(); |
3351 | if (!ValueIsPositive || ValueAPS.getActiveBits() > 31) { |
3352 | Diag(E->getExprLoc(), diag::err_pragma_loop_invalid_argument_value) |
3353 | << ValueAPS.toString(10) << ValueIsPositive; |
3354 | return true; |
3355 | } |
3356 | |
3357 | return false; |
3358 | } |
3359 | |
3360 | ExprResult Sema::ActOnNumericConstant(const Token &Tok, Scope *UDLScope) { |
3361 | |
3362 | |
3363 | if (Tok.getLength() == 1) { |
3364 | const char Val = PP.getSpellingOfSingleCharacterNumericConstant(Tok); |
3365 | return ActOnIntegerConstant(Tok.getLocation(), Val-'0'); |
3366 | } |
3367 | |
3368 | SmallString<128> SpellingBuffer; |
3369 | |
3370 | |
3371 | |
3372 | |
3373 | SpellingBuffer.resize(Tok.getLength() + 1); |
3374 | |
3375 | |
3376 | bool Invalid = false; |
3377 | StringRef TokSpelling = PP.getSpelling(Tok, SpellingBuffer, &Invalid); |
3378 | if (Invalid) |
3379 | return ExprError(); |
3380 | |
3381 | NumericLiteralParser Literal(TokSpelling, Tok.getLocation(), PP); |
3382 | if (Literal.hadError) |
3383 | return ExprError(); |
3384 | |
3385 | if (Literal.hasUDSuffix()) { |
3386 | |
3387 | IdentifierInfo *UDSuffix = &Context.Idents.get(Literal.getUDSuffix()); |
3388 | SourceLocation UDSuffixLoc = |
3389 | getUDSuffixLoc(*this, Tok.getLocation(), Literal.getUDSuffixOffset()); |
3390 | |
3391 | |
3392 | if (!UDLScope) |
3393 | return ExprError(Diag(UDSuffixLoc, diag::err_invalid_numeric_udl)); |
3394 | |
3395 | QualType CookedTy; |
3396 | if (Literal.isFloatingLiteral()) { |
3397 | |
3398 | |
3399 | |
3400 | CookedTy = Context.LongDoubleTy; |
3401 | } else { |
3402 | |
3403 | |
3404 | |
3405 | CookedTy = Context.UnsignedLongLongTy; |
3406 | } |
3407 | |
3408 | DeclarationName OpName = |
3409 | Context.DeclarationNames.getCXXLiteralOperatorName(UDSuffix); |
3410 | DeclarationNameInfo OpNameInfo(OpName, UDSuffixLoc); |
3411 | OpNameInfo.setCXXLiteralOperatorNameLoc(UDSuffixLoc); |
3412 | |
3413 | SourceLocation TokLoc = Tok.getLocation(); |
3414 | |
3415 | |
3416 | |
3417 | LookupResult R(*this, OpName, UDSuffixLoc, LookupOrdinaryName); |
3418 | switch (LookupLiteralOperator(UDLScope, R, CookedTy, |
3419 | true, true, |
3420 | false, |
3421 | !Literal.isImaginary)) { |
3422 | case LOLR_ErrorNoDiagnostic: |
3423 | |
3424 | |
3425 | break; |
3426 | case LOLR_Error: |
3427 | return ExprError(); |
3428 | case LOLR_Cooked: { |
3429 | Expr *Lit; |
3430 | if (Literal.isFloatingLiteral()) { |
3431 | Lit = BuildFloatingLiteral(*this, Literal, CookedTy, Tok.getLocation()); |
3432 | } else { |
3433 | llvm::APInt ResultVal(Context.getTargetInfo().getLongLongWidth(), 0); |
3434 | if (Literal.GetIntegerValue(ResultVal)) |
3435 | Diag(Tok.getLocation(), diag::err_integer_literal_too_large) |
3436 | << 1; |
3437 | Lit = IntegerLiteral::Create(Context, ResultVal, CookedTy, |
3438 | Tok.getLocation()); |
3439 | } |
3440 | return BuildLiteralOperatorCall(R, OpNameInfo, Lit, TokLoc); |
3441 | } |
3442 | |
3443 | case LOLR_Raw: { |
3444 | |
3445 | |
3446 | |
3447 | unsigned Length = Literal.getUDSuffixOffset(); |
3448 | QualType StrTy = Context.getConstantArrayType( |
3449 | Context.adjustStringLiteralBaseType(Context.CharTy.withConst()), |
3450 | llvm::APInt(32, Length + 1), ArrayType::Normal, 0); |
3451 | Expr *Lit = StringLiteral::Create( |
3452 | Context, StringRef(TokSpelling.data(), Length), StringLiteral::Ascii, |
3453 | , StrTy, &TokLoc, 1); |
3454 | return BuildLiteralOperatorCall(R, OpNameInfo, Lit, TokLoc); |
3455 | } |
3456 | |
3457 | case LOLR_Template: { |
3458 | |
3459 | |
3460 | |
3461 | |
3462 | TemplateArgumentListInfo ExplicitArgs; |
3463 | unsigned CharBits = Context.getIntWidth(Context.CharTy); |
3464 | bool CharIsUnsigned = Context.CharTy->isUnsignedIntegerType(); |
3465 | llvm::APSInt Value(CharBits, CharIsUnsigned); |
3466 | for (unsigned I = 0, N = Literal.getUDSuffixOffset(); I != N; ++I) { |
3467 | Value = TokSpelling[I]; |
3468 | TemplateArgument Arg(Context, Value, Context.CharTy); |
3469 | TemplateArgumentLocInfo ArgInfo; |
3470 | ExplicitArgs.addArgument(TemplateArgumentLoc(Arg, ArgInfo)); |
3471 | } |
3472 | return BuildLiteralOperatorCall(R, OpNameInfo, None, TokLoc, |
3473 | &ExplicitArgs); |
3474 | } |
3475 | case LOLR_StringTemplate: |
3476 | llvm_unreachable("unexpected literal operator lookup result"); |
3477 | } |
3478 | } |
3479 | |
3480 | Expr *Res; |
3481 | |
3482 | if (Literal.isFixedPointLiteral()) { |
3483 | QualType Ty; |
3484 | |
3485 | if (Literal.isAccum) { |
3486 | if (Literal.isHalf) { |
3487 | Ty = Context.ShortAccumTy; |
3488 | } else if (Literal.isLong) { |
3489 | Ty = Context.LongAccumTy; |
3490 | } else { |
3491 | Ty = Context.AccumTy; |
3492 | } |
3493 | } else if (Literal.isFract) { |
3494 | if (Literal.isHalf) { |
3495 | Ty = Context.ShortFractTy; |
3496 | } else if (Literal.isLong) { |
3497 | Ty = Context.LongFractTy; |
3498 | } else { |
3499 | Ty = Context.FractTy; |
3500 | } |
3501 | } |
3502 | |
3503 | if (Literal.isUnsigned) Ty = Context.getCorrespondingUnsignedType(Ty); |
3504 | |
3505 | bool isSigned = !Literal.isUnsigned; |
3506 | unsigned scale = Context.getFixedPointScale(Ty); |
3507 | unsigned bit_width = Context.getTypeInfo(Ty).Width; |
3508 | |
3509 | llvm::APInt Val(bit_width, 0, isSigned); |
3510 | bool Overflowed = Literal.GetFixedPointValue(Val, scale); |
3511 | bool ValIsZero = Val.isNullValue() && !Overflowed; |
3512 | |
3513 | auto MaxVal = Context.getFixedPointMax(Ty).getValue(); |
3514 | if (Literal.isFract && Val == MaxVal + 1 && !ValIsZero) |
3515 | |
3516 | |
3517 | |
3518 | |
3519 | --Val; |
3520 | else if (Val.ugt(MaxVal) || Overflowed) |
3521 | Diag(Tok.getLocation(), diag::err_too_large_for_fixed_point); |
3522 | |
3523 | Res = FixedPointLiteral::CreateFromRawInt(Context, Val, Ty, |
3524 | Tok.getLocation(), scale); |
3525 | } else if (Literal.isFloatingLiteral()) { |
3526 | QualType Ty; |
3527 | if (Literal.isHalf){ |
3528 | if (getOpenCLOptions().isEnabled("cl_khr_fp16")) |
3529 | Ty = Context.HalfTy; |
3530 | else { |
3531 | Diag(Tok.getLocation(), diag::err_half_const_requires_fp16); |
3532 | return ExprError(); |
3533 | } |
3534 | } else if (Literal.isFloat) |
3535 | Ty = Context.FloatTy; |
3536 | else if (Literal.isLong) |
3537 | Ty = Context.LongDoubleTy; |
3538 | else if (Literal.isFloat16) |
3539 | Ty = Context.Float16Ty; |
3540 | else if (Literal.isFloat128) |
3541 | Ty = Context.Float128Ty; |
3542 | else |
3543 | Ty = Context.DoubleTy; |
3544 | |
3545 | Res = BuildFloatingLiteral(*this, Literal, Ty, Tok.getLocation()); |
3546 | |
3547 | if (Ty == Context.DoubleTy) { |
3548 | if (getLangOpts().SinglePrecisionConstants) { |
3549 | const BuiltinType *BTy = Ty->getAs<BuiltinType>(); |
3550 | if (BTy->getKind() != BuiltinType::Float) { |
3551 | Res = ImpCastExprToType(Res, Context.FloatTy, CK_FloatingCast).get(); |
3552 | } |
3553 | } else if (getLangOpts().OpenCL && |
3554 | !getOpenCLOptions().isEnabled("cl_khr_fp64")) { |
3555 | |
3556 | Diag(Tok.getLocation(), diag::warn_double_const_requires_fp64); |
3557 | Res = ImpCastExprToType(Res, Context.FloatTy, CK_FloatingCast).get(); |
3558 | } |
3559 | } |
3560 | } else if (!Literal.isIntegerLiteral()) { |
3561 | return ExprError(); |
3562 | } else { |
3563 | QualType Ty; |
3564 | |
3565 | |
3566 | if (!getLangOpts().C99 && Literal.isLongLong) { |
3567 | if (getLangOpts().CPlusPlus) |
3568 | Diag(Tok.getLocation(), |
3569 | getLangOpts().CPlusPlus11 ? |
3570 | diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); |
3571 | else |
3572 | Diag(Tok.getLocation(), diag::ext_c99_longlong); |
3573 | } |
3574 | |
3575 | |
3576 | unsigned MaxWidth = Context.getTargetInfo().getIntMaxTWidth(); |
3577 | llvm::APInt ResultVal(MaxWidth, 0); |
3578 | |
3579 | if (Literal.GetIntegerValue(ResultVal)) { |
3580 | |
3581 | Diag(Tok.getLocation(), diag::err_integer_literal_too_large) |
3582 | << 1; |
3583 | Ty = Context.UnsignedLongLongTy; |
3584 | (0) . __assert_fail ("Context.getTypeSize(Ty) == ResultVal.getBitWidth() && \"long long is not intmax_t?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3585, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Context.getTypeSize(Ty) == ResultVal.getBitWidth() && |
3585 | (0) . __assert_fail ("Context.getTypeSize(Ty) == ResultVal.getBitWidth() && \"long long is not intmax_t?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3585, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "long long is not intmax_t?"); |
3586 | } else { |
3587 | |
3588 | |
3589 | |
3590 | |
3591 | |
3592 | bool AllowUnsigned = Literal.isUnsigned || Literal.getRadix() != 10; |
3593 | |
3594 | |
3595 | unsigned Width = 0; |
3596 | |
3597 | |
3598 | if (Literal.MicrosoftInteger) { |
3599 | if (Literal.MicrosoftInteger == 8 && !Literal.isUnsigned) { |
3600 | Width = 8; |
3601 | Ty = Context.CharTy; |
3602 | } else { |
3603 | Width = Literal.MicrosoftInteger; |
3604 | Ty = Context.getIntTypeForBitwidth(Width, |
3605 | !Literal.isUnsigned); |
3606 | } |
3607 | } |
3608 | |
3609 | if (Ty.isNull() && !Literal.isLong && !Literal.isLongLong) { |
3610 | |
3611 | unsigned IntSize = Context.getTargetInfo().getIntWidth(); |
3612 | |
3613 | |
3614 | if (ResultVal.isIntN(IntSize)) { |
3615 | |
3616 | if (!Literal.isUnsigned && ResultVal[IntSize-1] == 0) |
3617 | Ty = Context.IntTy; |
3618 | else if (AllowUnsigned) |
3619 | Ty = Context.UnsignedIntTy; |
3620 | Width = IntSize; |
3621 | } |
3622 | } |
3623 | |
3624 | |
3625 | if (Ty.isNull() && !Literal.isLongLong) { |
3626 | unsigned LongSize = Context.getTargetInfo().getLongWidth(); |
3627 | |
3628 | |
3629 | if (ResultVal.isIntN(LongSize)) { |
3630 | |
3631 | if (!Literal.isUnsigned && ResultVal[LongSize-1] == 0) |
3632 | Ty = Context.LongTy; |
3633 | else if (AllowUnsigned) |
3634 | Ty = Context.UnsignedLongTy; |
3635 | |
3636 | |
3637 | else if (!getLangOpts().C99 && !getLangOpts().CPlusPlus11) { |
3638 | const unsigned LongLongSize = |
3639 | Context.getTargetInfo().getLongLongWidth(); |
3640 | Diag(Tok.getLocation(), |
3641 | getLangOpts().CPlusPlus |
3642 | ? Literal.isLong |
3643 | ? diag::warn_old_implicitly_unsigned_long_cxx |
3644 | : diag:: |
3645 | ext_old_implicitly_unsigned_long_cxx |
3646 | : diag::warn_old_implicitly_unsigned_long) |
3647 | << (LongLongSize > LongSize ? 0 |
3648 | : 1); |
3649 | Ty = Context.UnsignedLongTy; |
3650 | } |
3651 | Width = LongSize; |
3652 | } |
3653 | } |
3654 | |
3655 | |
3656 | if (Ty.isNull()) { |
3657 | unsigned LongLongSize = Context.getTargetInfo().getLongLongWidth(); |
3658 | |
3659 | |
3660 | if (ResultVal.isIntN(LongLongSize)) { |
3661 | |
3662 | |
3663 | |
3664 | if (!Literal.isUnsigned && (ResultVal[LongLongSize-1] == 0 || |
3665 | (getLangOpts().MSVCCompat && Literal.isLongLong))) |
3666 | Ty = Context.LongLongTy; |
3667 | else if (AllowUnsigned) |
3668 | Ty = Context.UnsignedLongLongTy; |
3669 | Width = LongLongSize; |
3670 | } |
3671 | } |
3672 | |
3673 | |
3674 | |
3675 | if (Ty.isNull()) { |
3676 | Diag(Tok.getLocation(), diag::ext_integer_literal_too_large_for_signed); |
3677 | Ty = Context.UnsignedLongLongTy; |
3678 | Width = Context.getTargetInfo().getLongLongWidth(); |
3679 | } |
3680 | |
3681 | if (ResultVal.getBitWidth() != Width) |
3682 | ResultVal = ResultVal.trunc(Width); |
3683 | } |
3684 | Res = IntegerLiteral::Create(Context, ResultVal, Ty, Tok.getLocation()); |
3685 | } |
3686 | |
3687 | |
3688 | if (Literal.isImaginary) { |
3689 | Res = new (Context) ImaginaryLiteral(Res, |
3690 | Context.getComplexType(Res->getType())); |
3691 | |
3692 | Diag(Tok.getLocation(), diag::ext_imaginary_constant); |
3693 | } |
3694 | return Res; |
3695 | } |
3696 | |
3697 | ExprResult Sema::ActOnParenExpr(SourceLocation L, SourceLocation R, Expr *E) { |
3698 | (0) . __assert_fail ("E && \"ActOnParenExpr() missing expr\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3698, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E && "ActOnParenExpr() missing expr"); |
3699 | return new (Context) ParenExpr(L, R, E); |
3700 | } |
3701 | |
3702 | static bool CheckVecStepTraitOperandType(Sema &S, QualType T, |
3703 | SourceLocation Loc, |
3704 | SourceRange ArgRange) { |
3705 | |
3706 | |
3707 | |
3708 | |
3709 | if (!(T->isArithmeticType() || T->isVoidType() || T->isVectorType())) { |
3710 | S.Diag(Loc, diag::err_vecstep_non_scalar_vector_type) |
3711 | << T << ArgRange; |
3712 | return true; |
3713 | } |
3714 | |
3715 | (0) . __assert_fail ("(T->isVoidType() || !T->isIncompleteType()) && \"Scalar types should always be complete\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3716, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((T->isVoidType() || !T->isIncompleteType()) && |
3716 | (0) . __assert_fail ("(T->isVoidType() || !T->isIncompleteType()) && \"Scalar types should always be complete\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3716, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Scalar types should always be complete"); |
3717 | return false; |
3718 | } |
3719 | |
3720 | static bool CheckExtensionTraitOperandType(Sema &S, QualType T, |
3721 | SourceLocation Loc, |
3722 | SourceRange ArgRange, |
3723 | UnaryExprOrTypeTrait TraitKind) { |
3724 | |
3725 | if (S.LangOpts.CPlusPlus) |
3726 | return true; |
3727 | |
3728 | |
3729 | if (T->isFunctionType() && |
3730 | (TraitKind == UETT_SizeOf || TraitKind == UETT_AlignOf || |
3731 | TraitKind == UETT_PreferredAlignOf)) { |
3732 | |
3733 | S.Diag(Loc, diag::ext_sizeof_alignof_function_type) |
3734 | << TraitKind << ArgRange; |
3735 | return false; |
3736 | } |
3737 | |
3738 | |
3739 | |
3740 | if (T->isVoidType()) { |
3741 | unsigned DiagID = S.LangOpts.OpenCL ? diag::err_opencl_sizeof_alignof_type |
3742 | : diag::ext_sizeof_alignof_void_type; |
3743 | S.Diag(Loc, DiagID) << TraitKind << ArgRange; |
3744 | return false; |
3745 | } |
3746 | |
3747 | return true; |
3748 | } |
3749 | |
3750 | static bool CheckObjCTraitOperandConstraints(Sema &S, QualType T, |
3751 | SourceLocation Loc, |
3752 | SourceRange ArgRange, |
3753 | UnaryExprOrTypeTrait TraitKind) { |
3754 | |
3755 | |
3756 | if (!S.LangOpts.ObjCRuntime.allowsSizeofAlignof() && T->isObjCObjectType()) { |
3757 | S.Diag(Loc, diag::err_sizeof_nonfragile_interface) |
3758 | << T << (TraitKind == UETT_SizeOf) |
3759 | << ArgRange; |
3760 | return true; |
3761 | } |
3762 | |
3763 | return false; |
3764 | } |
3765 | |
3766 | |
3767 | |
3768 | static void warnOnSizeofOnArrayDecay(Sema &S, SourceLocation Loc, QualType T, |
3769 | Expr *E) { |
3770 | |
3771 | if (T != E->getType()) |
3772 | return; |
3773 | |
3774 | |
3775 | ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E); |
3776 | if (!ICE || ICE->getCastKind() != CK_ArrayToPointerDecay) |
3777 | return; |
3778 | |
3779 | S.Diag(Loc, diag::warn_sizeof_array_decay) << ICE->getSourceRange() |
3780 | << ICE->getType() |
3781 | << ICE->getSubExpr()->getType(); |
3782 | } |
3783 | |
3784 | |
3785 | |
3786 | |
3787 | |
3788 | |
3789 | |
3790 | |
3791 | bool Sema::CheckUnaryExprOrTypeTraitOperand(Expr *E, |
3792 | UnaryExprOrTypeTrait ExprKind) { |
3793 | QualType ExprTy = E->getType(); |
3794 | isReferenceType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3794, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!ExprTy->isReferenceType()); |
3795 | |
3796 | if (ExprKind == UETT_VecStep) |
3797 | return CheckVecStepTraitOperandType(*this, ExprTy, E->getExprLoc(), |
3798 | E->getSourceRange()); |
3799 | |
3800 | |
3801 | if (!CheckExtensionTraitOperandType(*this, ExprTy, E->getExprLoc(), |
3802 | E->getSourceRange(), ExprKind)) |
3803 | return false; |
3804 | |
3805 | |
3806 | |
3807 | |
3808 | |
3809 | if (ExprKind == UETT_AlignOf || ExprKind == UETT_PreferredAlignOf) { |
3810 | if (RequireCompleteType(E->getExprLoc(), |
3811 | Context.getBaseElementType(E->getType()), |
3812 | diag::err_sizeof_alignof_incomplete_type, ExprKind, |
3813 | E->getSourceRange())) |
3814 | return true; |
3815 | } else { |
3816 | if (RequireCompleteExprType(E, diag::err_sizeof_alignof_incomplete_type, |
3817 | ExprKind, E->getSourceRange())) |
3818 | return true; |
3819 | } |
3820 | |
3821 | |
3822 | ExprTy = E->getType(); |
3823 | isReferenceType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 3823, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!ExprTy->isReferenceType()); |
3824 | |
3825 | if (ExprTy->isFunctionType()) { |
3826 | Diag(E->getExprLoc(), diag::err_sizeof_alignof_function_type) |
3827 | << ExprKind << E->getSourceRange(); |
3828 | return true; |
3829 | } |
3830 | |
3831 | |
3832 | |
3833 | if ((ExprKind == UETT_SizeOf || ExprKind == UETT_AlignOf || |
3834 | ExprKind == UETT_PreferredAlignOf) && |
3835 | !inTemplateInstantiation() && E->HasSideEffects(Context, false)) |
3836 | Diag(E->getExprLoc(), diag::warn_side_effects_unevaluated_context); |
3837 | |
3838 | if (CheckObjCTraitOperandConstraints(*this, ExprTy, E->getExprLoc(), |
3839 | E->getSourceRange(), ExprKind)) |
3840 | return true; |
3841 | |
3842 | if (ExprKind == UETT_SizeOf) { |
3843 | if (DeclRefExpr *DeclRef = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { |
3844 | if (ParmVarDecl *PVD = dyn_cast<ParmVarDecl>(DeclRef->getFoundDecl())) { |
3845 | QualType OType = PVD->getOriginalType(); |
3846 | QualType Type = PVD->getType(); |
3847 | if (Type->isPointerType() && OType->isArrayType()) { |
3848 | Diag(E->getExprLoc(), diag::warn_sizeof_array_param) |
3849 | << Type << OType; |
3850 | Diag(PVD->getLocation(), diag::note_declared_at); |
3851 | } |
3852 | } |
3853 | } |
3854 | |
3855 | |
3856 | |
3857 | |
3858 | if (BinaryOperator *BO = dyn_cast<BinaryOperator>(E->IgnoreParens())) { |
3859 | warnOnSizeofOnArrayDecay(*this, BO->getOperatorLoc(), BO->getType(), |
3860 | BO->getLHS()); |
3861 | warnOnSizeofOnArrayDecay(*this, BO->getOperatorLoc(), BO->getType(), |
3862 | BO->getRHS()); |
3863 | } |
3864 | } |
3865 | |
3866 | return false; |
3867 | } |
3868 | |
3869 | |
3870 | |
3871 | |
3872 | |
3873 | |
3874 | |
3875 | |
3876 | |
3877 | |
3878 | |
3879 | |
3880 | |
3881 | |
3882 | |
3883 | |
3884 | bool Sema::CheckUnaryExprOrTypeTraitOperand(QualType ExprType, |
3885 | SourceLocation OpLoc, |
3886 | SourceRange ExprRange, |
3887 | UnaryExprOrTypeTrait ExprKind) { |
3888 | if (ExprType->isDependentType()) |
3889 | return false; |
3890 | |
3891 | |
3892 | |
3893 | |
3894 | |
3895 | |
3896 | |
3897 | if (const ReferenceType *Ref = ExprType->getAs<ReferenceType>()) |
3898 | ExprType = Ref->getPointeeType(); |
3899 | |
3900 | |
3901 | |
3902 | |
3903 | if (ExprKind == UETT_AlignOf || ExprKind == UETT_PreferredAlignOf || |
3904 | ExprKind == UETT_OpenMPRequiredSimdAlign) |
3905 | ExprType = Context.getBaseElementType(ExprType); |
3906 | |
3907 | if (ExprKind == UETT_VecStep) |
3908 | return CheckVecStepTraitOperandType(*this, ExprType, OpLoc, ExprRange); |
3909 | |
3910 | |
3911 | if (!CheckExtensionTraitOperandType(*this, ExprType, OpLoc, ExprRange, |
3912 | ExprKind)) |
3913 | return false; |
3914 | |
3915 | if (RequireCompleteType(OpLoc, ExprType, |
3916 | diag::err_sizeof_alignof_incomplete_type, |
3917 | ExprKind, ExprRange)) |
3918 | return true; |
3919 | |
3920 | if (ExprType->isFunctionType()) { |
3921 | Diag(OpLoc, diag::err_sizeof_alignof_function_type) |
3922 | << ExprKind << ExprRange; |
3923 | return true; |
3924 | } |
3925 | |
3926 | if (CheckObjCTraitOperandConstraints(*this, ExprType, OpLoc, ExprRange, |
3927 | ExprKind)) |
3928 | return true; |
3929 | |
3930 | return false; |
3931 | } |
3932 | |
3933 | static bool CheckAlignOfExpr(Sema &S, Expr *E, UnaryExprOrTypeTrait ExprKind) { |
3934 | E = E->IgnoreParens(); |
3935 | |
3936 | |
3937 | if (E->isTypeDependent()) |
3938 | return false; |
3939 | |
3940 | if (E->getObjectKind() == OK_BitField) { |
3941 | S.Diag(E->getExprLoc(), diag::err_sizeof_alignof_typeof_bitfield) |
3942 | << 1 << E->getSourceRange(); |
3943 | return true; |
3944 | } |
3945 | |
3946 | ValueDecl *D = nullptr; |
3947 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { |
3948 | D = DRE->getDecl(); |
3949 | } else if (MemberExpr *ME = dyn_cast<MemberExpr>(E)) { |
3950 | D = ME->getMemberDecl(); |
3951 | } |
3952 | |
3953 | |
3954 | |
3955 | |
3956 | |
3957 | |
3958 | |
3959 | |
3960 | |
3961 | |
3962 | |
3963 | |
3964 | |
3965 | |
3966 | |
3967 | |
3968 | |
3969 | |
3970 | if (FieldDecl *FD = dyn_cast_or_null<FieldDecl>(D)) { |
3971 | |
3972 | |
3973 | if (!FD->getParent()->isCompleteDefinition()) { |
3974 | S.Diag(E->getExprLoc(), diag::err_alignof_member_of_incomplete_type) |
3975 | << E->getSourceRange(); |
3976 | return true; |
3977 | } |
3978 | |
3979 | |
3980 | |
3981 | |
3982 | |
3983 | if (!FD->getType()->isReferenceType()) |
3984 | return false; |
3985 | } |
3986 | |
3987 | return S.CheckUnaryExprOrTypeTraitOperand(E, ExprKind); |
3988 | } |
3989 | |
3990 | bool Sema::CheckVecStepExpr(Expr *E) { |
3991 | E = E->IgnoreParens(); |
3992 | |
3993 | |
3994 | if (E->isTypeDependent()) |
3995 | return false; |
3996 | |
3997 | return CheckUnaryExprOrTypeTraitOperand(E, UETT_VecStep); |
3998 | } |
3999 | |
4000 | static void captureVariablyModifiedType(ASTContext &Context, QualType T, |
4001 | CapturingScopeInfo *CSI) { |
4002 | isVariablyModifiedType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 4002, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(T->isVariablyModifiedType()); |
4003 | assert(CSI != nullptr); |
4004 | |
4005 | |
4006 | do { |
4007 | const Type *Ty = T.getTypePtr(); |
4008 | switch (Ty->getTypeClass()) { |
4009 | #define TYPE(Class, Base) |
4010 | #define ABSTRACT_TYPE(Class, Base) |
4011 | #define NON_CANONICAL_TYPE(Class, Base) |
4012 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: |
4013 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) |
4014 | #include "clang/AST/TypeNodes.def" |
4015 | T = QualType(); |
4016 | break; |
4017 | |
4018 | case Type::Builtin: |
4019 | case Type::Complex: |
4020 | case Type::Vector: |
4021 | case Type::ExtVector: |
4022 | case Type::Record: |
4023 | case Type::Enum: |
4024 | case Type::Elaborated: |
4025 | case Type::TemplateSpecialization: |
4026 | case Type::ObjCObject: |
4027 | case Type::ObjCInterface: |
4028 | case Type::ObjCObjectPointer: |
4029 | case Type::ObjCTypeParam: |
4030 | case Type::Pipe: |
4031 | llvm_unreachable("type class is never variably-modified!"); |
4032 | case Type::Adjusted: |
4033 | T = cast<AdjustedType>(Ty)->getOriginalType(); |
4034 | break; |
4035 | case Type::Decayed: |
4036 | T = cast<DecayedType>(Ty)->getPointeeType(); |
4037 | break; |
4038 | case Type::Pointer: |
4039 | T = cast<PointerType>(Ty)->getPointeeType(); |
4040 | break; |
4041 | case Type::BlockPointer: |
4042 | T = cast<BlockPointerType>(Ty)->getPointeeType(); |
4043 | break; |
4044 | case Type::LValueReference: |
4045 | case Type::RValueReference: |
4046 | T = cast<ReferenceType>(Ty)->getPointeeType(); |
4047 | break; |
4048 | case Type::MemberPointer: |
4049 | T = cast<MemberPointerType>(Ty)->getPointeeType(); |
4050 | break; |
4051 | case Type::ConstantArray: |
4052 | case Type::IncompleteArray: |
4053 | |
4054 | T = cast<ArrayType>(Ty)->getElementType(); |
4055 | break; |
4056 | case Type::VariableArray: { |
4057 | |
4058 | const VariableArrayType *VAT = cast<VariableArrayType>(Ty); |
4059 | |
4060 | |
4061 | |
4062 | if (auto Size = VAT->getSizeExpr()) { |
4063 | if (!CSI->isVLATypeCaptured(VAT)) { |
4064 | RecordDecl *CapRecord = nullptr; |
4065 | if (auto LSI = dyn_cast<LambdaScopeInfo>(CSI)) { |
4066 | CapRecord = LSI->Lambda; |
4067 | } else if (auto CRSI = dyn_cast<CapturedRegionScopeInfo>(CSI)) { |
4068 | CapRecord = CRSI->TheRecordDecl; |
4069 | } |
4070 | if (CapRecord) { |
4071 | auto ExprLoc = Size->getExprLoc(); |
4072 | auto SizeType = Context.getSizeType(); |
4073 | |
4074 | auto Field = |
4075 | FieldDecl::Create(Context, CapRecord, ExprLoc, ExprLoc, |
4076 | nullptr, SizeType, nullptr, |
4077 | nullptr, false, |
4078 | ICIS_NoInit); |
4079 | Field->setImplicit(true); |
4080 | Field->setAccess(AS_private); |
4081 | Field->setCapturedVLAType(VAT); |
4082 | CapRecord->addDecl(Field); |
4083 | |
4084 | CSI->addVLATypeCapture(ExprLoc, SizeType); |
4085 | } |
4086 | } |
4087 | } |
4088 | T = VAT->getElementType(); |
4089 | break; |
4090 | } |
4091 | case Type::FunctionProto: |
4092 | case Type::FunctionNoProto: |
4093 | T = cast<FunctionType>(Ty)->getReturnType(); |
4094 | break; |
4095 | case Type::Paren: |
4096 | case Type::TypeOf: |
4097 | case Type::UnaryTransform: |
4098 | case Type::Attributed: |
4099 | case Type::SubstTemplateTypeParm: |
4100 | case Type::PackExpansion: |
4101 | |
4102 | T = T.getSingleStepDesugaredType(Context); |
4103 | break; |
4104 | case Type::Typedef: |
4105 | T = cast<TypedefType>(Ty)->desugar(); |
4106 | break; |
4107 | case Type::Decltype: |
4108 | T = cast<DecltypeType>(Ty)->desugar(); |
4109 | break; |
4110 | case Type::Auto: |
4111 | case Type::DeducedTemplateSpecialization: |
4112 | T = cast<DeducedType>(Ty)->getDeducedType(); |
4113 | break; |
4114 | case Type::TypeOfExpr: |
4115 | T = cast<TypeOfExprType>(Ty)->getUnderlyingExpr()->getType(); |
4116 | break; |
4117 | case Type::Atomic: |
4118 | T = cast<AtomicType>(Ty)->getValueType(); |
4119 | break; |
4120 | } |
4121 | } while (!T.isNull() && T->isVariablyModifiedType()); |
4122 | } |
4123 | |
4124 | |
4125 | ExprResult |
4126 | Sema::CreateUnaryExprOrTypeTraitExpr(TypeSourceInfo *TInfo, |
4127 | SourceLocation OpLoc, |
4128 | UnaryExprOrTypeTrait ExprKind, |
4129 | SourceRange R) { |
4130 | if (!TInfo) |
4131 | return ExprError(); |
4132 | |
4133 | QualType T = TInfo->getType(); |
4134 | |
4135 | if (!T->isDependentType() && |
4136 | CheckUnaryExprOrTypeTraitOperand(T, OpLoc, R, ExprKind)) |
4137 | return ExprError(); |
4138 | |
4139 | if (T->isVariablyModifiedType() && FunctionScopes.size() > 1) { |
4140 | if (auto *TT = T->getAs<TypedefType>()) { |
4141 | for (auto I = FunctionScopes.rbegin(), |
4142 | E = std::prev(FunctionScopes.rend()); |
4143 | I != E; ++I) { |
4144 | auto *CSI = dyn_cast<CapturingScopeInfo>(*I); |
4145 | if (CSI == nullptr) |
4146 | break; |
4147 | DeclContext *DC = nullptr; |
4148 | if (auto *LSI = dyn_cast<LambdaScopeInfo>(CSI)) |
4149 | DC = LSI->CallOperator; |
4150 | else if (auto *CRSI = dyn_cast<CapturedRegionScopeInfo>(CSI)) |
4151 | DC = CRSI->TheCapturedDecl; |
4152 | else if (auto *BSI = dyn_cast<BlockScopeInfo>(CSI)) |
4153 | DC = BSI->TheDecl; |
4154 | if (DC) { |
4155 | if (DC->containsDecl(TT->getDecl())) |
4156 | break; |
4157 | captureVariablyModifiedType(Context, T, CSI); |
4158 | } |
4159 | } |
4160 | } |
4161 | } |
4162 | |
4163 | |
4164 | return new (Context) UnaryExprOrTypeTraitExpr( |
4165 | ExprKind, TInfo, Context.getSizeType(), OpLoc, R.getEnd()); |
4166 | } |
4167 | |
4168 | |
4169 | |
4170 | ExprResult |
4171 | Sema::CreateUnaryExprOrTypeTraitExpr(Expr *E, SourceLocation OpLoc, |
4172 | UnaryExprOrTypeTrait ExprKind) { |
4173 | ExprResult PE = CheckPlaceholderExpr(E); |
4174 | if (PE.isInvalid()) |
4175 | return ExprError(); |
4176 | |
4177 | E = PE.get(); |
4178 | |
4179 | |
4180 | bool isInvalid = false; |
4181 | if (E->isTypeDependent()) { |
4182 | |
4183 | } else if (ExprKind == UETT_AlignOf || ExprKind == UETT_PreferredAlignOf) { |
4184 | isInvalid = CheckAlignOfExpr(*this, E, ExprKind); |
4185 | } else if (ExprKind == UETT_VecStep) { |
4186 | isInvalid = CheckVecStepExpr(E); |
4187 | } else if (ExprKind == UETT_OpenMPRequiredSimdAlign) { |
4188 | Diag(E->getExprLoc(), diag::err_openmp_default_simd_align_expr); |
4189 | isInvalid = true; |
4190 | } else if (E->refersToBitField()) { |
4191 | Diag(E->getExprLoc(), diag::err_sizeof_alignof_typeof_bitfield) << 0; |
4192 | isInvalid = true; |
4193 | } else { |
4194 | isInvalid = CheckUnaryExprOrTypeTraitOperand(E, UETT_SizeOf); |
4195 | } |
4196 | |
4197 | if (isInvalid) |
4198 | return ExprError(); |
4199 | |
4200 | if (ExprKind == UETT_SizeOf && E->getType()->isVariableArrayType()) { |
4201 | PE = TransformToPotentiallyEvaluated(E); |
4202 | if (PE.isInvalid()) return ExprError(); |
4203 | E = PE.get(); |
4204 | } |
4205 | |
4206 | |
4207 | return new (Context) UnaryExprOrTypeTraitExpr( |
4208 | ExprKind, E, Context.getSizeType(), OpLoc, E->getSourceRange().getEnd()); |
4209 | } |
4210 | |
4211 | |
4212 | |
4213 | |
4214 | ExprResult |
4215 | Sema::ActOnUnaryExprOrTypeTraitExpr(SourceLocation OpLoc, |
4216 | UnaryExprOrTypeTrait ExprKind, bool IsType, |
4217 | void *TyOrEx, SourceRange ArgRange) { |
4218 | |
4219 | if (!TyOrEx) return ExprError(); |
4220 | |
4221 | if (IsType) { |
4222 | TypeSourceInfo *TInfo; |
4223 | (void) GetTypeFromParser(ParsedType::getFromOpaquePtr(TyOrEx), &TInfo); |
4224 | return CreateUnaryExprOrTypeTraitExpr(TInfo, OpLoc, ExprKind, ArgRange); |
4225 | } |
4226 | |
4227 | Expr *ArgEx = (Expr *)TyOrEx; |
4228 | ExprResult Result = CreateUnaryExprOrTypeTraitExpr(ArgEx, OpLoc, ExprKind); |
4229 | return Result; |
4230 | } |
4231 | |
4232 | static QualType CheckRealImagOperand(Sema &S, ExprResult &V, SourceLocation Loc, |
4233 | bool IsReal) { |
4234 | if (V.get()->isTypeDependent()) |
4235 | return S.Context.DependentTy; |
4236 | |
4237 | |
4238 | if (V.get()->getObjectKind() != OK_Ordinary) { |
4239 | V = S.DefaultLvalueConversion(V.get()); |
4240 | if (V.isInvalid()) |
4241 | return QualType(); |
4242 | } |
4243 | |
4244 | |
4245 | if (const ComplexType *CT = V.get()->getType()->getAs<ComplexType>()) |
4246 | return CT->getElementType(); |
4247 | |
4248 | |
4249 | if (V.get()->getType()->isArithmeticType()) |
4250 | return V.get()->getType(); |
4251 | |
4252 | |
4253 | ExprResult PR = S.CheckPlaceholderExpr(V.get()); |
4254 | if (PR.isInvalid()) return QualType(); |
4255 | if (PR.get() != V.get()) { |
4256 | V = PR; |
4257 | return CheckRealImagOperand(S, V, Loc, IsReal); |
4258 | } |
4259 | |
4260 | |
4261 | S.Diag(Loc, diag::err_realimag_invalid_type) << V.get()->getType() |
4262 | << (IsReal ? "__real" : "__imag"); |
4263 | return QualType(); |
4264 | } |
4265 | |
4266 | |
4267 | |
4268 | ExprResult |
4269 | Sema::ActOnPostfixUnaryOp(Scope *S, SourceLocation OpLoc, |
4270 | tok::TokenKind Kind, Expr *Input) { |
4271 | UnaryOperatorKind Opc; |
4272 | switch (Kind) { |
4273 | default: llvm_unreachable("Unknown unary op!"); |
4274 | case tok::plusplus: Opc = UO_PostInc; break; |
4275 | case tok::minusminus: Opc = UO_PostDec; break; |
4276 | } |
4277 | |
4278 | |
4279 | ExprResult Result = MaybeConvertParenListExprToParenExpr(S, Input); |
4280 | if (Result.isInvalid()) return ExprError(); |
4281 | Input = Result.get(); |
4282 | |
4283 | return BuildUnaryOp(S, OpLoc, Opc, Input); |
4284 | } |
4285 | |
4286 | |
4287 | |
4288 | |
4289 | static bool checkArithmeticOnObjCPointer(Sema &S, |
4290 | SourceLocation opLoc, |
4291 | Expr *op) { |
4292 | getType()->isObjCObjectPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 4292, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(op->getType()->isObjCObjectPointerType()); |
4293 | if (S.LangOpts.ObjCRuntime.allowsPointerArithmetic() && |
4294 | !S.LangOpts.ObjCSubscriptingLegacyRuntime) |
4295 | return false; |
4296 | |
4297 | S.Diag(opLoc, diag::err_arithmetic_nonfragile_interface) |
4298 | << op->getType()->castAs<ObjCObjectPointerType>()->getPointeeType() |
4299 | << op->getSourceRange(); |
4300 | return true; |
4301 | } |
4302 | |
4303 | static bool isMSPropertySubscriptExpr(Sema &S, Expr *Base) { |
4304 | auto *BaseNoParens = Base->IgnoreParens(); |
4305 | if (auto *MSProp = dyn_cast<MSPropertyRefExpr>(BaseNoParens)) |
4306 | return MSProp->getPropertyDecl()->getType()->isArrayType(); |
4307 | return isa<MSPropertySubscriptExpr>(BaseNoParens); |
4308 | } |
4309 | |
4310 | ExprResult |
4311 | Sema::ActOnArraySubscriptExpr(Scope *S, Expr *base, SourceLocation lbLoc, |
4312 | Expr *idx, SourceLocation rbLoc) { |
4313 | if (base && !base->getType().isNull() && |
4314 | base->getType()->isSpecificPlaceholderType(BuiltinType::OMPArraySection)) |
4315 | return ActOnOMPArraySectionExpr(base, lbLoc, idx, SourceLocation(), |
4316 | , rbLoc); |
4317 | |
4318 | |
4319 | if (isa<ParenListExpr>(base)) { |
4320 | ExprResult result = MaybeConvertParenListExprToParenExpr(S, base); |
4321 | if (result.isInvalid()) return ExprError(); |
4322 | base = result.get(); |
4323 | } |
4324 | |
4325 | |
4326 | |
4327 | |
4328 | |
4329 | |
4330 | bool IsMSPropertySubscript = false; |
4331 | if (base->getType()->isNonOverloadPlaceholderType()) { |
4332 | IsMSPropertySubscript = isMSPropertySubscriptExpr(*this, base); |
4333 | if (!IsMSPropertySubscript) { |
4334 | ExprResult result = CheckPlaceholderExpr(base); |
4335 | if (result.isInvalid()) |
4336 | return ExprError(); |
4337 | base = result.get(); |
4338 | } |
4339 | } |
4340 | if (idx->getType()->isNonOverloadPlaceholderType()) { |
4341 | ExprResult result = CheckPlaceholderExpr(idx); |
4342 | if (result.isInvalid()) return ExprError(); |
4343 | idx = result.get(); |
4344 | } |
4345 | |
4346 | |
4347 | if (getLangOpts().CPlusPlus && |
4348 | (base->isTypeDependent() || idx->isTypeDependent())) { |
4349 | return new (Context) ArraySubscriptExpr(base, idx, Context.DependentTy, |
4350 | VK_LValue, OK_Ordinary, rbLoc); |
4351 | } |
4352 | |
4353 | |
4354 | |
4355 | |
4356 | |
4357 | |
4358 | |
4359 | |
4360 | |
4361 | if (IsMSPropertySubscript) { |
4362 | |
4363 | |
4364 | return new (Context) MSPropertySubscriptExpr( |
4365 | base, idx, Context.PseudoObjectTy, VK_LValue, OK_Ordinary, rbLoc); |
4366 | } |
4367 | |
4368 | |
4369 | |
4370 | |
4371 | |
4372 | |
4373 | |
4374 | |
4375 | |
4376 | if (getLangOpts().CPlusPlus && |
4377 | (base->getType()->isRecordType() || |
4378 | (!base->getType()->isObjCObjectPointerType() && |
4379 | idx->getType()->isRecordType()))) { |
4380 | return CreateOverloadedArraySubscriptExpr(lbLoc, rbLoc, base, idx); |
4381 | } |
4382 | |
4383 | ExprResult Res = CreateBuiltinArraySubscriptExpr(base, lbLoc, idx, rbLoc); |
4384 | |
4385 | if (!Res.isInvalid() && isa<ArraySubscriptExpr>(Res.get())) |
4386 | CheckSubscriptAccessOfNoDeref(cast<ArraySubscriptExpr>(Res.get())); |
4387 | |
4388 | return Res; |
4389 | } |
4390 | |
4391 | void Sema::CheckAddressOfNoDeref(const Expr *E) { |
4392 | ExpressionEvaluationContextRecord &LastRecord = ExprEvalContexts.back(); |
4393 | const Expr *StrippedExpr = E->IgnoreParenImpCasts(); |
4394 | |
4395 | |
4396 | |
4397 | const MemberExpr *Member = nullptr; |
4398 | while ((Member = dyn_cast<MemberExpr>(StrippedExpr)) && !Member->isArrow()) |
4399 | StrippedExpr = Member->getBase()->IgnoreParenImpCasts(); |
4400 | |
4401 | LastRecord.PossibleDerefs.erase(StrippedExpr); |
4402 | } |
4403 | |
4404 | void Sema::CheckSubscriptAccessOfNoDeref(const ArraySubscriptExpr *E) { |
4405 | QualType ResultTy = E->getType(); |
4406 | ExpressionEvaluationContextRecord &LastRecord = ExprEvalContexts.back(); |
4407 | |
4408 | |
4409 | if (isa<ArrayType>(ResultTy)) |
4410 | return; |
4411 | |
4412 | if (ResultTy->hasAttr(attr::NoDeref)) { |
4413 | LastRecord.PossibleDerefs.insert(E); |
4414 | return; |
4415 | } |
4416 | |
4417 | |
4418 | |
4419 | const Expr *Base = E->getBase(); |
4420 | QualType BaseTy = Base->getType(); |
4421 | if (!(isa<ArrayType>(BaseTy) || isa<PointerType>(BaseTy))) |
4422 | |
4423 | return; |
4424 | |
4425 | const MemberExpr *Member = nullptr; |
4426 | while ((Member = dyn_cast<MemberExpr>(Base->IgnoreParenCasts())) && |
4427 | Member->isArrow()) |
4428 | Base = Member->getBase(); |
4429 | |
4430 | if (const auto *Ptr = dyn_cast<PointerType>(Base->getType())) { |
4431 | if (Ptr->getPointeeType()->hasAttr(attr::NoDeref)) |
4432 | LastRecord.PossibleDerefs.insert(E); |
4433 | } |
4434 | } |
4435 | |
4436 | ExprResult Sema::ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc, |
4437 | Expr *LowerBound, |
4438 | SourceLocation ColonLoc, Expr *Length, |
4439 | SourceLocation RBLoc) { |
4440 | if (Base->getType()->isPlaceholderType() && |
4441 | !Base->getType()->isSpecificPlaceholderType( |
4442 | BuiltinType::OMPArraySection)) { |
4443 | ExprResult Result = CheckPlaceholderExpr(Base); |
4444 | if (Result.isInvalid()) |
4445 | return ExprError(); |
4446 | Base = Result.get(); |
4447 | } |
4448 | if (LowerBound && LowerBound->getType()->isNonOverloadPlaceholderType()) { |
4449 | ExprResult Result = CheckPlaceholderExpr(LowerBound); |
4450 | if (Result.isInvalid()) |
4451 | return ExprError(); |
4452 | Result = DefaultLvalueConversion(Result.get()); |
4453 | if (Result.isInvalid()) |
4454 | return ExprError(); |
4455 | LowerBound = Result.get(); |
4456 | } |
4457 | if (Length && Length->getType()->isNonOverloadPlaceholderType()) { |
4458 | ExprResult Result = CheckPlaceholderExpr(Length); |
4459 | if (Result.isInvalid()) |
4460 | return ExprError(); |
4461 | Result = DefaultLvalueConversion(Result.get()); |
4462 | if (Result.isInvalid()) |
4463 | return ExprError(); |
4464 | Length = Result.get(); |
4465 | } |
4466 | |
4467 | |
4468 | if (Base->isTypeDependent() || |
4469 | (LowerBound && |
4470 | (LowerBound->isTypeDependent() || LowerBound->isValueDependent())) || |
4471 | (Length && (Length->isTypeDependent() || Length->isValueDependent()))) { |
4472 | return new (Context) |
4473 | OMPArraySectionExpr(Base, LowerBound, Length, Context.DependentTy, |
4474 | VK_LValue, OK_Ordinary, ColonLoc, RBLoc); |
4475 | } |
4476 | |
4477 | |
4478 | QualType OriginalTy = OMPArraySectionExpr::getBaseOriginalType(Base); |
4479 | QualType ResultTy; |
4480 | if (OriginalTy->isAnyPointerType()) { |
4481 | ResultTy = OriginalTy->getPointeeType(); |
4482 | } else if (OriginalTy->isArrayType()) { |
4483 | ResultTy = OriginalTy->getAsArrayTypeUnsafe()->getElementType(); |
4484 | } else { |
4485 | return ExprError( |
4486 | Diag(Base->getExprLoc(), diag::err_omp_typecheck_section_value) |
4487 | << Base->getSourceRange()); |
4488 | } |
4489 | |
4490 | if (LowerBound) { |
4491 | auto Res = PerformOpenMPImplicitIntegerConversion(LowerBound->getExprLoc(), |
4492 | LowerBound); |
4493 | if (Res.isInvalid()) |
4494 | return ExprError(Diag(LowerBound->getExprLoc(), |
4495 | diag::err_omp_typecheck_section_not_integer) |
4496 | << 0 << LowerBound->getSourceRange()); |
4497 | LowerBound = Res.get(); |
4498 | |
4499 | if (LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_S) || |
4500 | LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_U)) |
4501 | Diag(LowerBound->getExprLoc(), diag::warn_omp_section_is_char) |
4502 | << 0 << LowerBound->getSourceRange(); |
4503 | } |
4504 | if (Length) { |
4505 | auto Res = |
4506 | PerformOpenMPImplicitIntegerConversion(Length->getExprLoc(), Length); |
4507 | if (Res.isInvalid()) |
4508 | return ExprError(Diag(Length->getExprLoc(), |
4509 | diag::err_omp_typecheck_section_not_integer) |
4510 | << 1 << Length->getSourceRange()); |
4511 | Length = Res.get(); |
4512 | |
4513 | if (Length->getType()->isSpecificBuiltinType(BuiltinType::Char_S) || |
4514 | Length->getType()->isSpecificBuiltinType(BuiltinType::Char_U)) |
4515 | Diag(Length->getExprLoc(), diag::warn_omp_section_is_char) |
4516 | << 1 << Length->getSourceRange(); |
4517 | } |
4518 | |
4519 | |
4520 | |
4521 | |
4522 | |
4523 | if (ResultTy->isFunctionType()) { |
4524 | Diag(Base->getExprLoc(), diag::err_omp_section_function_type) |
4525 | << ResultTy << Base->getSourceRange(); |
4526 | return ExprError(); |
4527 | } |
4528 | |
4529 | if (RequireCompleteType(Base->getExprLoc(), ResultTy, |
4530 | diag::err_omp_section_incomplete_type, Base)) |
4531 | return ExprError(); |
4532 | |
4533 | if (LowerBound && !OriginalTy->isAnyPointerType()) { |
4534 | Expr::EvalResult Result; |
4535 | if (LowerBound->EvaluateAsInt(Result, Context)) { |
4536 | |
4537 | |
4538 | llvm::APSInt LowerBoundValue = Result.Val.getInt(); |
4539 | if (LowerBoundValue.isNegative()) { |
4540 | Diag(LowerBound->getExprLoc(), diag::err_omp_section_not_subset_of_array) |
4541 | << LowerBound->getSourceRange(); |
4542 | return ExprError(); |
4543 | } |
4544 | } |
4545 | } |
4546 | |
4547 | if (Length) { |
4548 | Expr::EvalResult Result; |
4549 | if (Length->EvaluateAsInt(Result, Context)) { |
4550 | |
4551 | |
4552 | llvm::APSInt LengthValue = Result.Val.getInt(); |
4553 | if (LengthValue.isNegative()) { |
4554 | Diag(Length->getExprLoc(), diag::err_omp_section_length_negative) |
4555 | << LengthValue.toString(, ) |
4556 | << Length->getSourceRange(); |
4557 | return ExprError(); |
4558 | } |
4559 | } |
4560 | } else if (ColonLoc.isValid() && |
4561 | (OriginalTy.isNull() || (!OriginalTy->isConstantArrayType() && |
4562 | !OriginalTy->isVariableArrayType()))) { |
4563 | |
4564 | |
4565 | |
4566 | Diag(ColonLoc, diag::err_omp_section_length_undefined) |
4567 | << (!OriginalTy.isNull() && OriginalTy->isArrayType()); |
4568 | return ExprError(); |
4569 | } |
4570 | |
4571 | if (!Base->getType()->isSpecificPlaceholderType( |
4572 | BuiltinType::OMPArraySection)) { |
4573 | ExprResult Result = DefaultFunctionArrayLvalueConversion(Base); |
4574 | if (Result.isInvalid()) |
4575 | return ExprError(); |
4576 | Base = Result.get(); |
4577 | } |
4578 | return new (Context) |
4579 | OMPArraySectionExpr(Base, LowerBound, Length, Context.OMPArraySectionTy, |
4580 | VK_LValue, OK_Ordinary, ColonLoc, RBLoc); |
4581 | } |
4582 | |
4583 | ExprResult |
4584 | Sema::CreateBuiltinArraySubscriptExpr(Expr *Base, SourceLocation LLoc, |
4585 | Expr *Idx, SourceLocation RLoc) { |
4586 | Expr *LHSExp = Base; |
4587 | Expr *RHSExp = Idx; |
4588 | |
4589 | ExprValueKind VK = VK_LValue; |
4590 | ExprObjectKind OK = OK_Ordinary; |
4591 | |
4592 | |
4593 | |
4594 | if (getLangOpts().CPlusPlus11) { |
4595 | for (auto *Op : {LHSExp, RHSExp}) { |
4596 | Op = Op->IgnoreImplicit(); |
4597 | if (Op->getType()->isArrayType() && !Op->isLValue()) |
4598 | VK = VK_XValue; |
4599 | } |
4600 | } |
4601 | |
4602 | |
4603 | if (!LHSExp->getType()->getAs<VectorType>()) { |
4604 | ExprResult Result = DefaultFunctionArrayLvalueConversion(LHSExp); |
4605 | if (Result.isInvalid()) |
4606 | return ExprError(); |
4607 | LHSExp = Result.get(); |
4608 | } |
4609 | ExprResult Result = DefaultFunctionArrayLvalueConversion(RHSExp); |
4610 | if (Result.isInvalid()) |
4611 | return ExprError(); |
4612 | RHSExp = Result.get(); |
4613 | |
4614 | QualType LHSTy = LHSExp->getType(), RHSTy = RHSExp->getType(); |
4615 | |
4616 | |
4617 | |
4618 | |
4619 | |
4620 | Expr *BaseExpr, *IndexExpr; |
4621 | QualType ResultType; |
4622 | if (LHSTy->isDependentType() || RHSTy->isDependentType()) { |
4623 | BaseExpr = LHSExp; |
4624 | IndexExpr = RHSExp; |
4625 | ResultType = Context.DependentTy; |
4626 | } else if (const PointerType *PTy = LHSTy->getAs<PointerType>()) { |
4627 | BaseExpr = LHSExp; |
4628 | IndexExpr = RHSExp; |
4629 | ResultType = PTy->getPointeeType(); |
4630 | } else if (const ObjCObjectPointerType *PTy = |
4631 | LHSTy->getAs<ObjCObjectPointerType>()) { |
4632 | BaseExpr = LHSExp; |
4633 | IndexExpr = RHSExp; |
4634 | |
4635 | |
4636 | |
4637 | if (!LangOpts.isSubscriptPointerArithmetic()) |
4638 | return BuildObjCSubscriptExpression(RLoc, BaseExpr, IndexExpr, nullptr, |
4639 | nullptr); |
4640 | |
4641 | ResultType = PTy->getPointeeType(); |
4642 | } else if (const PointerType *PTy = RHSTy->getAs<PointerType>()) { |
4643 | |
4644 | BaseExpr = RHSExp; |
4645 | IndexExpr = LHSExp; |
4646 | ResultType = PTy->getPointeeType(); |
4647 | } else if (const ObjCObjectPointerType *PTy = |
4648 | RHSTy->getAs<ObjCObjectPointerType>()) { |
4649 | |
4650 | BaseExpr = RHSExp; |
4651 | IndexExpr = LHSExp; |
4652 | ResultType = PTy->getPointeeType(); |
4653 | if (!LangOpts.isSubscriptPointerArithmetic()) { |
4654 | Diag(LLoc, diag::err_subscript_nonfragile_interface) |
4655 | << ResultType << BaseExpr->getSourceRange(); |
4656 | return ExprError(); |
4657 | } |
4658 | } else if (const VectorType *VTy = LHSTy->getAs<VectorType>()) { |
4659 | BaseExpr = LHSExp; |
4660 | IndexExpr = RHSExp; |
4661 | |
4662 | if (getLangOpts().CPlusPlus11 && LHSExp->getValueKind() == VK_RValue) { |
4663 | ExprResult Materialized = TemporaryMaterializationConversion(LHSExp); |
4664 | if (Materialized.isInvalid()) |
4665 | return ExprError(); |
4666 | LHSExp = Materialized.get(); |
4667 | } |
4668 | VK = LHSExp->getValueKind(); |
4669 | if (VK != VK_RValue) |
4670 | OK = OK_VectorComponent; |
4671 | |
4672 | ResultType = VTy->getElementType(); |
4673 | QualType BaseType = BaseExpr->getType(); |
4674 | Qualifiers BaseQuals = BaseType.getQualifiers(); |
4675 | Qualifiers MemberQuals = ResultType.getQualifiers(); |
4676 | Qualifiers Combined = BaseQuals + MemberQuals; |
4677 | if (Combined != MemberQuals) |
4678 | ResultType = Context.getQualifiedType(ResultType, Combined); |
4679 | } else if (LHSTy->isArrayType()) { |
4680 | |
4681 | |
4682 | |
4683 | |
4684 | |
4685 | Diag(LHSExp->getBeginLoc(), diag::ext_subscript_non_lvalue) |
4686 | << LHSExp->getSourceRange(); |
4687 | LHSExp = ImpCastExprToType(LHSExp, Context.getArrayDecayedType(LHSTy), |
4688 | CK_ArrayToPointerDecay).get(); |
4689 | LHSTy = LHSExp->getType(); |
4690 | |
4691 | BaseExpr = LHSExp; |
4692 | IndexExpr = RHSExp; |
4693 | ResultType = LHSTy->getAs<PointerType>()->getPointeeType(); |
4694 | } else if (RHSTy->isArrayType()) { |
4695 | |
4696 | Diag(RHSExp->getBeginLoc(), diag::ext_subscript_non_lvalue) |
4697 | << RHSExp->getSourceRange(); |
4698 | RHSExp = ImpCastExprToType(RHSExp, Context.getArrayDecayedType(RHSTy), |
4699 | CK_ArrayToPointerDecay).get(); |
4700 | RHSTy = RHSExp->getType(); |
4701 | |
4702 | BaseExpr = RHSExp; |
4703 | IndexExpr = LHSExp; |
4704 | ResultType = RHSTy->getAs<PointerType>()->getPointeeType(); |
4705 | } else { |
4706 | return ExprError(Diag(LLoc, diag::err_typecheck_subscript_value) |
4707 | << LHSExp->getSourceRange() << RHSExp->getSourceRange()); |
4708 | } |
4709 | |
4710 | if (!IndexExpr->getType()->isIntegerType() && !IndexExpr->isTypeDependent()) |
4711 | return ExprError(Diag(LLoc, diag::err_typecheck_subscript_not_integer) |
4712 | << IndexExpr->getSourceRange()); |
4713 | |
4714 | if ((IndexExpr->getType()->isSpecificBuiltinType(BuiltinType::Char_S) || |
4715 | IndexExpr->getType()->isSpecificBuiltinType(BuiltinType::Char_U)) |
4716 | && !IndexExpr->isTypeDependent()) |
4717 | Diag(LLoc, diag::warn_subscript_is_char) << IndexExpr->getSourceRange(); |
4718 | |
4719 | |
4720 | |
4721 | |
4722 | |
4723 | if (ResultType->isFunctionType()) { |
4724 | Diag(BaseExpr->getBeginLoc(), diag::err_subscript_function_type) |
4725 | << ResultType << BaseExpr->getSourceRange(); |
4726 | return ExprError(); |
4727 | } |
4728 | |
4729 | if (ResultType->isVoidType() && !getLangOpts().CPlusPlus) { |
4730 | |
4731 | Diag(LLoc, diag::ext_gnu_subscript_void_type) |
4732 | << BaseExpr->getSourceRange(); |
4733 | |
4734 | |
4735 | |
4736 | if (!ResultType.hasQualifiers()) VK = VK_RValue; |
4737 | } else if (!ResultType->isDependentType() && |
4738 | RequireCompleteType(LLoc, ResultType, |
4739 | diag::err_subscript_incomplete_type, BaseExpr)) |
4740 | return ExprError(); |
4741 | |
4742 | assert(VK == VK_RValue || LangOpts.CPlusPlus || |
4743 | !ResultType.isCForbiddenLValueType()); |
4744 | |
4745 | return new (Context) |
4746 | ArraySubscriptExpr(LHSExp, RHSExp, ResultType, VK, OK, RLoc); |
4747 | } |
4748 | |
4749 | bool Sema::CheckCXXDefaultArgExpr(SourceLocation CallLoc, FunctionDecl *FD, |
4750 | ParmVarDecl *Param) { |
4751 | if (Param->hasUnparsedDefaultArg()) { |
4752 | Diag(CallLoc, |
4753 | diag::err_use_of_default_argument_to_function_declared_later) << |
4754 | FD << cast<CXXRecordDecl>(FD->getDeclContext())->getDeclName(); |
4755 | Diag(UnparsedDefaultArgLocs[Param], |
4756 | diag::note_default_argument_declared_here); |
4757 | return true; |
4758 | } |
4759 | |
4760 | if (Param->hasUninstantiatedDefaultArg()) { |
4761 | Expr *UninstExpr = Param->getUninstantiatedDefaultArg(); |
4762 | |
4763 | EnterExpressionEvaluationContext EvalContext( |
4764 | *this, ExpressionEvaluationContext::PotentiallyEvaluated, Param); |
4765 | |
4766 | |
4767 | |
4768 | |
4769 | |
4770 | |
4771 | |
4772 | |
4773 | |
4774 | |
4775 | |
4776 | |
4777 | |
4778 | |
4779 | |
4780 | |
4781 | |
4782 | |
4783 | MultiLevelTemplateArgumentList MutiLevelArgList |
4784 | = getTemplateInstantiationArgs(FD, nullptr, ); |
4785 | |
4786 | InstantiatingTemplate Inst(*this, CallLoc, Param, |
4787 | MutiLevelArgList.getInnermost()); |
4788 | if (Inst.isInvalid()) |
4789 | return true; |
4790 | if (Inst.isAlreadyInstantiating()) { |
4791 | Diag(Param->getBeginLoc(), diag::err_recursive_default_argument) << FD; |
4792 | Param->setInvalidDecl(); |
4793 | return true; |
4794 | } |
4795 | |
4796 | ExprResult Result; |
4797 | { |
4798 | |
4799 | |
4800 | |
4801 | |
4802 | ContextRAII SavedContext(*this, FD); |
4803 | LocalInstantiationScope Local(*this); |
4804 | Result = SubstInitializer(UninstExpr, MutiLevelArgList, |
4805 | ); |
4806 | } |
4807 | if (Result.isInvalid()) |
4808 | return true; |
4809 | |
4810 | |
4811 | InitializedEntity Entity |
4812 | = InitializedEntity::InitializeParameter(Context, Param); |
4813 | InitializationKind Kind = InitializationKind::CreateCopy( |
4814 | Param->getLocation(), |
4815 | UninstExpr->getBeginLoc()); |
4816 | Expr *ResultE = Result.getAs<Expr>(); |
4817 | |
4818 | InitializationSequence InitSeq(*this, Entity, Kind, ResultE); |
4819 | Result = InitSeq.Perform(*this, Entity, Kind, ResultE); |
4820 | if (Result.isInvalid()) |
4821 | return true; |
4822 | |
4823 | Result = |
4824 | ActOnFinishFullExpr(Result.getAs<Expr>(), Param->getOuterLocStart(), |
4825 | false); |
4826 | if (Result.isInvalid()) |
4827 | return true; |
4828 | |
4829 | |
4830 | Param->setDefaultArg(Result.getAs<Expr>()); |
4831 | if (ASTMutationListener *L = getASTMutationListener()) { |
4832 | L->DefaultArgumentInstantiated(Param); |
4833 | } |
4834 | } |
4835 | |
4836 | |
4837 | if (!Param->hasInit()) { |
4838 | Diag(Param->getBeginLoc(), diag::err_recursive_default_argument) << FD; |
4839 | Param->setInvalidDecl(); |
4840 | return true; |
4841 | } |
4842 | |
4843 | |
4844 | |
4845 | |
4846 | |
4847 | |
4848 | |
4849 | |
4850 | if (auto Init = dyn_cast<ExprWithCleanups>(Param->getInit())) { |
4851 | |
4852 | |
4853 | Cleanup.setExprNeedsCleanups(Init->cleanupsHaveSideEffects()); |
4854 | |
4855 | |
4856 | |
4857 | |
4858 | (0) . __assert_fail ("!Init->getNumObjects() && \"default argument expression has capturing blocks?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 4859, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Init->getNumObjects() && |
4859 | (0) . __assert_fail ("!Init->getNumObjects() && \"default argument expression has capturing blocks?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 4859, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "default argument expression has capturing blocks?"); |
4860 | } |
4861 | |
4862 | |
4863 | |
4864 | |
4865 | MarkDeclarationsReferencedInExpr(Param->getDefaultArg(), |
4866 | ); |
4867 | return false; |
4868 | } |
4869 | |
4870 | ExprResult Sema::BuildCXXDefaultArgExpr(SourceLocation CallLoc, |
4871 | FunctionDecl *FD, ParmVarDecl *Param) { |
4872 | if (CheckCXXDefaultArgExpr(CallLoc, FD, Param)) |
4873 | return ExprError(); |
4874 | return CXXDefaultArgExpr::Create(Context, CallLoc, Param); |
4875 | } |
4876 | |
4877 | Sema::VariadicCallType |
4878 | Sema::getVariadicCallType(FunctionDecl *FDecl, const FunctionProtoType *Proto, |
4879 | Expr *Fn) { |
4880 | if (Proto && Proto->isVariadic()) { |
4881 | if (dyn_cast_or_null<CXXConstructorDecl>(FDecl)) |
4882 | return VariadicConstructor; |
4883 | else if (Fn && Fn->getType()->isBlockPointerType()) |
4884 | return VariadicBlock; |
4885 | else if (FDecl) { |
4886 | if (CXXMethodDecl *Method = dyn_cast_or_null<CXXMethodDecl>(FDecl)) |
4887 | if (Method->isInstance()) |
4888 | return VariadicMethod; |
4889 | } else if (Fn && Fn->getType() == Context.BoundMemberTy) |
4890 | return VariadicMethod; |
4891 | return VariadicFunction; |
4892 | } |
4893 | return VariadicDoesNotApply; |
4894 | } |
4895 | |
4896 | namespace { |
4897 | class FunctionCallCCC final : public FunctionCallFilterCCC { |
4898 | public: |
4899 | FunctionCallCCC(Sema &SemaRef, const IdentifierInfo *FuncName, |
4900 | unsigned NumArgs, MemberExpr *ME) |
4901 | : FunctionCallFilterCCC(SemaRef, NumArgs, false, ME), |
4902 | FunctionName(FuncName) {} |
4903 | |
4904 | bool ValidateCandidate(const TypoCorrection &candidate) override { |
4905 | if (!candidate.getCorrectionSpecifier() || |
4906 | candidate.getCorrectionAsIdentifierInfo() != FunctionName) { |
4907 | return false; |
4908 | } |
4909 | |
4910 | return FunctionCallFilterCCC::ValidateCandidate(candidate); |
4911 | } |
4912 | |
4913 | std::unique_ptr<CorrectionCandidateCallback> clone() override { |
4914 | return llvm::make_unique<FunctionCallCCC>(*this); |
4915 | } |
4916 | |
4917 | private: |
4918 | const IdentifierInfo *const FunctionName; |
4919 | }; |
4920 | } |
4921 | |
4922 | static TypoCorrection TryTypoCorrectionForCall(Sema &S, Expr *Fn, |
4923 | FunctionDecl *FDecl, |
4924 | ArrayRef<Expr *> Args) { |
4925 | MemberExpr *ME = dyn_cast<MemberExpr>(Fn); |
4926 | DeclarationName FuncName = FDecl->getDeclName(); |
4927 | SourceLocation NameLoc = ME ? ME->getMemberLoc() : Fn->getBeginLoc(); |
4928 | |
4929 | FunctionCallCCC CCC(S, FuncName.getAsIdentifierInfo(), Args.size(), ME); |
4930 | if (TypoCorrection Corrected = S.CorrectTypo( |
4931 | DeclarationNameInfo(FuncName, NameLoc), Sema::LookupOrdinaryName, |
4932 | S.getScopeForContext(S.CurContext), nullptr, CCC, |
4933 | Sema::CTK_ErrorRecovery)) { |
4934 | if (NamedDecl *ND = Corrected.getFoundDecl()) { |
4935 | if (Corrected.isOverloaded()) { |
4936 | OverloadCandidateSet OCS(NameLoc, OverloadCandidateSet::CSK_Normal); |
4937 | OverloadCandidateSet::iterator Best; |
4938 | for (NamedDecl *CD : Corrected) { |
4939 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(CD)) |
4940 | S.AddOverloadCandidate(FD, DeclAccessPair::make(FD, AS_none), Args, |
4941 | OCS); |
4942 | } |
4943 | switch (OCS.BestViableFunction(S, NameLoc, Best)) { |
4944 | case OR_Success: |
4945 | ND = Best->FoundDecl; |
4946 | Corrected.setCorrectionDecl(ND); |
4947 | break; |
4948 | default: |
4949 | break; |
4950 | } |
4951 | } |
4952 | ND = ND->getUnderlyingDecl(); |
4953 | if (isa<ValueDecl>(ND) || isa<FunctionTemplateDecl>(ND)) |
4954 | return Corrected; |
4955 | } |
4956 | } |
4957 | return TypoCorrection(); |
4958 | } |
4959 | |
4960 | |
4961 | |
4962 | |
4963 | |
4964 | |
4965 | |
4966 | bool |
4967 | Sema::ConvertArgumentsForCall(CallExpr *Call, Expr *Fn, |
4968 | FunctionDecl *FDecl, |
4969 | const FunctionProtoType *Proto, |
4970 | ArrayRef<Expr *> Args, |
4971 | SourceLocation RParenLoc, |
4972 | bool IsExecConfig) { |
4973 | |
4974 | if (FDecl) |
4975 | if (unsigned ID = FDecl->getBuiltinID()) |
4976 | if (Context.BuiltinInfo.hasCustomTypechecking(ID)) |
4977 | return false; |
4978 | |
4979 | |
4980 | |
4981 | unsigned NumParams = Proto->getNumParams(); |
4982 | bool Invalid = false; |
4983 | unsigned MinArgs = FDecl ? FDecl->getMinRequiredArguments() : NumParams; |
4984 | unsigned FnKind = Fn->getType()->isBlockPointerType() |
4985 | ? 1 |
4986 | : (IsExecConfig ? 3 |
4987 | : 0 ); |
4988 | |
4989 | |
4990 | |
4991 | if (Args.size() < NumParams) { |
4992 | if (Args.size() < MinArgs) { |
4993 | TypoCorrection TC; |
4994 | if (FDecl && (TC = TryTypoCorrectionForCall(*this, Fn, FDecl, Args))) { |
4995 | unsigned diag_id = |
4996 | MinArgs == NumParams && !Proto->isVariadic() |
4997 | ? diag::err_typecheck_call_too_few_args_suggest |
4998 | : diag::err_typecheck_call_too_few_args_at_least_suggest; |
4999 | diagnoseTypo(TC, PDiag(diag_id) << FnKind << MinArgs |
5000 | << static_cast<unsigned>(Args.size()) |
5001 | << TC.getCorrectionRange()); |
5002 | } else if (MinArgs == 1 && FDecl && FDecl->getParamDecl(0)->getDeclName()) |
5003 | Diag(RParenLoc, |
5004 | MinArgs == NumParams && !Proto->isVariadic() |
5005 | ? diag::err_typecheck_call_too_few_args_one |
5006 | : diag::err_typecheck_call_too_few_args_at_least_one) |
5007 | << FnKind << FDecl->getParamDecl(0) << Fn->getSourceRange(); |
5008 | else |
5009 | Diag(RParenLoc, MinArgs == NumParams && !Proto->isVariadic() |
5010 | ? diag::err_typecheck_call_too_few_args |
5011 | : diag::err_typecheck_call_too_few_args_at_least) |
5012 | << FnKind << MinArgs << static_cast<unsigned>(Args.size()) |
5013 | << Fn->getSourceRange(); |
5014 | |
5015 | |
5016 | if (!TC && FDecl && !FDecl->getBuiltinID() && !IsExecConfig) |
5017 | Diag(FDecl->getBeginLoc(), diag::note_callee_decl) << FDecl; |
5018 | |
5019 | return true; |
5020 | } |
5021 | |
5022 | |
5023 | (0) . __assert_fail ("(Call->getNumArgs() == NumParams) && \"We should have reserved space for the default arguments before!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5024, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((Call->getNumArgs() == NumParams) && |
5024 | (0) . __assert_fail ("(Call->getNumArgs() == NumParams) && \"We should have reserved space for the default arguments before!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5024, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "We should have reserved space for the default arguments before!"); |
5025 | } |
5026 | |
5027 | |
5028 | |
5029 | if (Args.size() > NumParams) { |
5030 | if (!Proto->isVariadic()) { |
5031 | TypoCorrection TC; |
5032 | if (FDecl && (TC = TryTypoCorrectionForCall(*this, Fn, FDecl, Args))) { |
5033 | unsigned diag_id = |
5034 | MinArgs == NumParams && !Proto->isVariadic() |
5035 | ? diag::err_typecheck_call_too_many_args_suggest |
5036 | : diag::err_typecheck_call_too_many_args_at_most_suggest; |
5037 | diagnoseTypo(TC, PDiag(diag_id) << FnKind << NumParams |
5038 | << static_cast<unsigned>(Args.size()) |
5039 | << TC.getCorrectionRange()); |
5040 | } else if (NumParams == 1 && FDecl && |
5041 | FDecl->getParamDecl(0)->getDeclName()) |
5042 | Diag(Args[NumParams]->getBeginLoc(), |
5043 | MinArgs == NumParams |
5044 | ? diag::err_typecheck_call_too_many_args_one |
5045 | : diag::err_typecheck_call_too_many_args_at_most_one) |
5046 | << FnKind << FDecl->getParamDecl(0) |
5047 | << static_cast<unsigned>(Args.size()) << Fn->getSourceRange() |
5048 | << SourceRange(Args[NumParams]->getBeginLoc(), |
5049 | Args.back()->getEndLoc()); |
5050 | else |
5051 | Diag(Args[NumParams]->getBeginLoc(), |
5052 | MinArgs == NumParams |
5053 | ? diag::err_typecheck_call_too_many_args |
5054 | : diag::err_typecheck_call_too_many_args_at_most) |
5055 | << FnKind << NumParams << static_cast<unsigned>(Args.size()) |
5056 | << Fn->getSourceRange() |
5057 | << SourceRange(Args[NumParams]->getBeginLoc(), |
5058 | Args.back()->getEndLoc()); |
5059 | |
5060 | |
5061 | if (!TC && FDecl && !FDecl->getBuiltinID() && !IsExecConfig) |
5062 | Diag(FDecl->getBeginLoc(), diag::note_callee_decl) << FDecl; |
5063 | |
5064 | |
5065 | Call->shrinkNumArgs(NumParams); |
5066 | return true; |
5067 | } |
5068 | } |
5069 | SmallVector<Expr *, 8> AllArgs; |
5070 | VariadicCallType CallType = getVariadicCallType(FDecl, Proto, Fn); |
5071 | |
5072 | Invalid = GatherArgumentsForCall(Call->getBeginLoc(), FDecl, Proto, 0, Args, |
5073 | AllArgs, CallType); |
5074 | if (Invalid) |
5075 | return true; |
5076 | unsigned TotalNumArgs = AllArgs.size(); |
5077 | for (unsigned i = 0; i < TotalNumArgs; ++i) |
5078 | Call->setArg(i, AllArgs[i]); |
5079 | |
5080 | return false; |
5081 | } |
5082 | |
5083 | bool Sema::GatherArgumentsForCall(SourceLocation CallLoc, FunctionDecl *FDecl, |
5084 | const FunctionProtoType *Proto, |
5085 | unsigned FirstParam, ArrayRef<Expr *> Args, |
5086 | SmallVectorImpl<Expr *> &AllArgs, |
5087 | VariadicCallType CallType, bool AllowExplicit, |
5088 | bool IsListInitialization) { |
5089 | unsigned NumParams = Proto->getNumParams(); |
5090 | bool Invalid = false; |
5091 | size_t ArgIx = 0; |
5092 | |
5093 | for (unsigned i = FirstParam; i < NumParams; i++) { |
5094 | QualType ProtoArgType = Proto->getParamType(i); |
5095 | |
5096 | Expr *Arg; |
5097 | ParmVarDecl *Param = FDecl ? FDecl->getParamDecl(i) : nullptr; |
5098 | if (ArgIx < Args.size()) { |
5099 | Arg = Args[ArgIx++]; |
5100 | |
5101 | if (RequireCompleteType(Arg->getBeginLoc(), ProtoArgType, |
5102 | diag::err_call_incomplete_argument, Arg)) |
5103 | return true; |
5104 | |
5105 | |
5106 | bool CFAudited = false; |
5107 | if (Arg->getType() == Context.ARCUnbridgedCastTy && |
5108 | FDecl && FDecl->hasAttr<CFAuditedTransferAttr>() && |
5109 | (!Param || !Param->hasAttr<CFConsumedAttr>())) |
5110 | Arg = stripARCUnbridgedCast(Arg); |
5111 | else if (getLangOpts().ObjCAutoRefCount && |
5112 | FDecl && FDecl->hasAttr<CFAuditedTransferAttr>() && |
5113 | (!Param || !Param->hasAttr<CFConsumedAttr>())) |
5114 | CFAudited = true; |
5115 | |
5116 | if (Proto->getExtParameterInfo(i).isNoEscape()) |
5117 | if (auto *BE = dyn_cast<BlockExpr>(Arg->IgnoreParenNoopCasts(Context))) |
5118 | BE->getBlockDecl()->setDoesNotEscape(); |
5119 | |
5120 | InitializedEntity Entity = |
5121 | Param ? InitializedEntity::InitializeParameter(Context, Param, |
5122 | ProtoArgType) |
5123 | : InitializedEntity::InitializeParameter( |
5124 | Context, ProtoArgType, Proto->isParamConsumed(i)); |
5125 | |
5126 | |
5127 | if (CFAudited) |
5128 | Entity.setParameterCFAudited(); |
5129 | |
5130 | ExprResult ArgE = PerformCopyInitialization( |
5131 | Entity, SourceLocation(), Arg, IsListInitialization, AllowExplicit); |
5132 | if (ArgE.isInvalid()) |
5133 | return true; |
5134 | |
5135 | Arg = ArgE.getAs<Expr>(); |
5136 | } else { |
5137 | (0) . __assert_fail ("Param && \"can't use default arguments without a known callee\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5137, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Param && "can't use default arguments without a known callee"); |
5138 | |
5139 | ExprResult ArgExpr = |
5140 | BuildCXXDefaultArgExpr(CallLoc, FDecl, Param); |
5141 | if (ArgExpr.isInvalid()) |
5142 | return true; |
5143 | |
5144 | Arg = ArgExpr.getAs<Expr>(); |
5145 | } |
5146 | |
5147 | |
5148 | |
5149 | |
5150 | CheckArrayAccess(Arg); |
5151 | |
5152 | |
5153 | CheckStaticArrayArgument(CallLoc, Param, Arg); |
5154 | |
5155 | AllArgs.push_back(Arg); |
5156 | } |
5157 | |
5158 | |
5159 | if (CallType != VariadicDoesNotApply) { |
5160 | |
5161 | |
5162 | if (Proto->getReturnType() == Context.UnknownAnyTy && FDecl && |
5163 | FDecl->isExternC()) { |
5164 | for (Expr *A : Args.slice(ArgIx)) { |
5165 | QualType paramType; |
5166 | ExprResult arg = checkUnknownAnyArg(CallLoc, A, paramType); |
5167 | Invalid |= arg.isInvalid(); |
5168 | AllArgs.push_back(arg.get()); |
5169 | } |
5170 | |
5171 | |
5172 | } else { |
5173 | for (Expr *A : Args.slice(ArgIx)) { |
5174 | ExprResult Arg = DefaultVariadicArgumentPromotion(A, CallType, FDecl); |
5175 | Invalid |= Arg.isInvalid(); |
5176 | AllArgs.push_back(Arg.get()); |
5177 | } |
5178 | } |
5179 | |
5180 | |
5181 | for (Expr *A : Args.slice(ArgIx)) |
5182 | CheckArrayAccess(A); |
5183 | } |
5184 | return Invalid; |
5185 | } |
5186 | |
5187 | static void DiagnoseCalleeStaticArrayParam(Sema &S, ParmVarDecl *PVD) { |
5188 | TypeLoc TL = PVD->getTypeSourceInfo()->getTypeLoc(); |
5189 | if (DecayedTypeLoc DTL = TL.getAs<DecayedTypeLoc>()) |
5190 | TL = DTL.getOriginalLoc(); |
5191 | if (ArrayTypeLoc ATL = TL.getAs<ArrayTypeLoc>()) |
5192 | S.Diag(PVD->getLocation(), diag::note_callee_static_array) |
5193 | << ATL.getLocalSourceRange(); |
5194 | } |
5195 | |
5196 | |
5197 | |
5198 | |
5199 | |
5200 | |
5201 | |
5202 | |
5203 | |
5204 | void |
5205 | Sema::CheckStaticArrayArgument(SourceLocation CallLoc, |
5206 | ParmVarDecl *Param, |
5207 | const Expr *ArgExpr) { |
5208 | |
5209 | if (!Param || getLangOpts().CPlusPlus) |
5210 | return; |
5211 | |
5212 | QualType OrigTy = Param->getOriginalType(); |
5213 | |
5214 | const ArrayType *AT = Context.getAsArrayType(OrigTy); |
5215 | if (!AT || AT->getSizeModifier() != ArrayType::Static) |
5216 | return; |
5217 | |
5218 | if (ArgExpr->isNullPointerConstant(Context, |
5219 | Expr::NPC_NeverValueDependent)) { |
5220 | Diag(CallLoc, diag::warn_null_arg) << ArgExpr->getSourceRange(); |
5221 | DiagnoseCalleeStaticArrayParam(*this, Param); |
5222 | return; |
5223 | } |
5224 | |
5225 | const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT); |
5226 | if (!CAT) |
5227 | return; |
5228 | |
5229 | const ConstantArrayType *ArgCAT = |
5230 | Context.getAsConstantArrayType(ArgExpr->IgnoreParenCasts()->getType()); |
5231 | if (!ArgCAT) |
5232 | return; |
5233 | |
5234 | if (getASTContext().hasSameUnqualifiedType(CAT->getElementType(), |
5235 | ArgCAT->getElementType())) { |
5236 | if (ArgCAT->getSize().ult(CAT->getSize())) { |
5237 | Diag(CallLoc, diag::warn_static_array_too_small) |
5238 | << ArgExpr->getSourceRange() |
5239 | << (unsigned)ArgCAT->getSize().getZExtValue() |
5240 | << (unsigned)CAT->getSize().getZExtValue() << 0; |
5241 | DiagnoseCalleeStaticArrayParam(*this, Param); |
5242 | } |
5243 | return; |
5244 | } |
5245 | |
5246 | Optional<CharUnits> ArgSize = |
5247 | getASTContext().getTypeSizeInCharsIfKnown(ArgCAT); |
5248 | Optional<CharUnits> ParmSize = getASTContext().getTypeSizeInCharsIfKnown(CAT); |
5249 | if (ArgSize && ParmSize && *ArgSize < *ParmSize) { |
5250 | Diag(CallLoc, diag::warn_static_array_too_small) |
5251 | << ArgExpr->getSourceRange() << (unsigned)ArgSize->getQuantity() |
5252 | << (unsigned)ParmSize->getQuantity() << 1; |
5253 | DiagnoseCalleeStaticArrayParam(*this, Param); |
5254 | } |
5255 | } |
5256 | |
5257 | |
5258 | |
5259 | static ExprResult rebuildUnknownAnyFunction(Sema &S, Expr *fn); |
5260 | |
5261 | |
5262 | |
5263 | static bool isPlaceholderToRemoveAsArg(QualType type) { |
5264 | |
5265 | const BuiltinType *placeholder = dyn_cast<BuiltinType>(type); |
5266 | if (!placeholder) return false; |
5267 | |
5268 | switch (placeholder->getKind()) { |
5269 | |
5270 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
5271 | case BuiltinType::Id: |
5272 | #include "clang/Basic/OpenCLImageTypes.def" |
5273 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
5274 | case BuiltinType::Id: |
5275 | #include "clang/Basic/OpenCLExtensionTypes.def" |
5276 | #define PLACEHOLDER_TYPE(ID, SINGLETON_ID) |
5277 | #define BUILTIN_TYPE(ID, SINGLETON_ID) case BuiltinType::ID: |
5278 | #include "clang/AST/BuiltinTypes.def" |
5279 | return false; |
5280 | |
5281 | |
5282 | |
5283 | case BuiltinType::Overload: |
5284 | return false; |
5285 | |
5286 | |
5287 | |
5288 | case BuiltinType::ARCUnbridgedCast: |
5289 | return false; |
5290 | |
5291 | |
5292 | case BuiltinType::PseudoObject: |
5293 | return true; |
5294 | |
5295 | |
5296 | |
5297 | case BuiltinType::UnknownAny: |
5298 | return true; |
5299 | |
5300 | |
5301 | case BuiltinType::BoundMember: |
5302 | case BuiltinType::BuiltinFn: |
5303 | case BuiltinType::OMPArraySection: |
5304 | return true; |
5305 | |
5306 | } |
5307 | llvm_unreachable("bad builtin type kind"); |
5308 | } |
5309 | |
5310 | |
5311 | |
5312 | static bool checkArgsForPlaceholders(Sema &S, MultiExprArg args) { |
5313 | |
5314 | |
5315 | bool hasInvalid = false; |
5316 | for (size_t i = 0, e = args.size(); i != e; i++) { |
5317 | if (isPlaceholderToRemoveAsArg(args[i]->getType())) { |
5318 | ExprResult result = S.CheckPlaceholderExpr(args[i]); |
5319 | if (result.isInvalid()) hasInvalid = true; |
5320 | else args[i] = result.get(); |
5321 | } else if (hasInvalid) { |
5322 | (void)S.CorrectDelayedTyposInExpr(args[i]); |
5323 | } |
5324 | } |
5325 | return hasInvalid; |
5326 | } |
5327 | |
5328 | |
5329 | |
5330 | |
5331 | |
5332 | |
5333 | |
5334 | |
5335 | |
5336 | |
5337 | |
5338 | |
5339 | static FunctionDecl *rewriteBuiltinFunctionDecl(Sema *Sema, ASTContext &Context, |
5340 | const FunctionDecl *FDecl, |
5341 | MultiExprArg ArgExprs) { |
5342 | |
5343 | QualType DeclType = FDecl->getType(); |
5344 | const FunctionProtoType *FT = dyn_cast<FunctionProtoType>(DeclType); |
5345 | |
5346 | if (!Context.BuiltinInfo.hasPtrArgsOrResult(FDecl->getBuiltinID()) || |
5347 | !FT || FT->isVariadic() || ArgExprs.size() != FT->getNumParams()) |
5348 | return nullptr; |
5349 | |
5350 | bool NeedsNewDecl = false; |
5351 | unsigned i = 0; |
5352 | SmallVector<QualType, 8> OverloadParams; |
5353 | |
5354 | for (QualType ParamType : FT->param_types()) { |
5355 | |
5356 | |
5357 | ExprResult ArgRes = |
5358 | Sema->DefaultFunctionArrayLvalueConversion(ArgExprs[i++]); |
5359 | if (ArgRes.isInvalid()) |
5360 | return nullptr; |
5361 | Expr *Arg = ArgRes.get(); |
5362 | QualType ArgType = Arg->getType(); |
5363 | if (!ParamType->isPointerType() || |
5364 | ParamType.getQualifiers().hasAddressSpace() || |
5365 | !ArgType->isPointerType() || |
5366 | !ArgType->getPointeeType().getQualifiers().hasAddressSpace()) { |
5367 | OverloadParams.push_back(ParamType); |
5368 | continue; |
5369 | } |
5370 | |
5371 | QualType PointeeType = ParamType->getPointeeType(); |
5372 | if (PointeeType.getQualifiers().hasAddressSpace()) |
5373 | continue; |
5374 | |
5375 | NeedsNewDecl = true; |
5376 | LangAS AS = ArgType->getPointeeType().getAddressSpace(); |
5377 | |
5378 | PointeeType = Context.getAddrSpaceQualType(PointeeType, AS); |
5379 | OverloadParams.push_back(Context.getPointerType(PointeeType)); |
5380 | } |
5381 | |
5382 | if (!NeedsNewDecl) |
5383 | return nullptr; |
5384 | |
5385 | FunctionProtoType::ExtProtoInfo EPI; |
5386 | QualType OverloadTy = Context.getFunctionType(FT->getReturnType(), |
5387 | OverloadParams, EPI); |
5388 | DeclContext *Parent = Context.getTranslationUnitDecl(); |
5389 | FunctionDecl *OverloadDecl = FunctionDecl::Create(Context, Parent, |
5390 | FDecl->getLocation(), |
5391 | FDecl->getLocation(), |
5392 | FDecl->getIdentifier(), |
5393 | OverloadTy, |
5394 | , |
5395 | SC_Extern, false, |
5396 | ); |
5397 | SmallVector<ParmVarDecl*, 16> Params; |
5398 | FT = cast<FunctionProtoType>(OverloadTy); |
5399 | for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) { |
5400 | QualType ParamType = FT->getParamType(i); |
5401 | ParmVarDecl *Parm = |
5402 | ParmVarDecl::Create(Context, OverloadDecl, SourceLocation(), |
5403 | SourceLocation(), nullptr, ParamType, |
5404 | , SC_None, nullptr); |
5405 | Parm->setScopeInfo(0, i); |
5406 | Params.push_back(Parm); |
5407 | } |
5408 | OverloadDecl->setParams(Params); |
5409 | return OverloadDecl; |
5410 | } |
5411 | |
5412 | static void checkDirectCallValidity(Sema &S, const Expr *Fn, |
5413 | FunctionDecl *Callee, |
5414 | MultiExprArg ArgExprs) { |
5415 | |
5416 | |
5417 | |
5418 | if (S.TooManyArguments(Callee->getNumParams(), ArgExprs.size(), |
5419 | ) && |
5420 | !Callee->isVariadic()) |
5421 | return; |
5422 | if (Callee->getMinRequiredArguments() > ArgExprs.size()) |
5423 | return; |
5424 | |
5425 | if (const EnableIfAttr *Attr = S.CheckEnableIf(Callee, ArgExprs, true)) { |
5426 | S.Diag(Fn->getBeginLoc(), |
5427 | isa<CXXMethodDecl>(Callee) |
5428 | ? diag::err_ovl_no_viable_member_function_in_call |
5429 | : diag::err_ovl_no_viable_function_in_call) |
5430 | << Callee << Callee->getSourceRange(); |
5431 | S.Diag(Callee->getLocation(), |
5432 | diag::note_ovl_candidate_disabled_by_function_cond_attr) |
5433 | << Attr->getCond()->getSourceRange() << Attr->getMessage(); |
5434 | return; |
5435 | } |
5436 | } |
5437 | |
5438 | static bool enclosingClassIsRelatedToClassInWhichMembersWereFound( |
5439 | const UnresolvedMemberExpr *const UME, Sema &S) { |
5440 | |
5441 | const auto GetFunctionLevelDCIfCXXClass = |
5442 | [](Sema &S) -> const CXXRecordDecl * { |
5443 | const DeclContext *const DC = S.getFunctionLevelDeclContext(); |
5444 | if (!DC || !DC->getParent()) |
5445 | return nullptr; |
5446 | |
5447 | |
5448 | |
5449 | if (const auto *MD = dyn_cast<CXXMethodDecl>(DC)) |
5450 | return MD->getParent()->getCanonicalDecl(); |
5451 | |
5452 | |
5453 | if (const auto *RD = dyn_cast<CXXRecordDecl>(DC)) |
5454 | return RD->getCanonicalDecl(); |
5455 | return nullptr; |
5456 | }; |
5457 | |
5458 | |
5459 | |
5460 | |
5461 | const CXXRecordDecl *const CurParentClass = GetFunctionLevelDCIfCXXClass(S); |
5462 | if (!CurParentClass) |
5463 | return false; |
5464 | |
5465 | |
5466 | |
5467 | const CXXRecordDecl *const NamingClass = |
5468 | UME->getNamingClass()->getCanonicalDecl(); |
5469 | (0) . __assert_fail ("NamingClass && \"Must have naming class even for implicit access\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5469, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(NamingClass && "Must have naming class even for implicit access"); |
5470 | |
5471 | |
5472 | |
5473 | |
5474 | |
5475 | return CurParentClass == NamingClass || |
5476 | CurParentClass->isDerivedFrom(NamingClass); |
5477 | } |
5478 | |
5479 | static void |
5480 | tryImplicitlyCaptureThisIfImplicitMemberFunctionAccessWithDependentArgs( |
5481 | Sema &S, const UnresolvedMemberExpr *const UME, SourceLocation CallLoc) { |
5482 | |
5483 | if (!UME) |
5484 | return; |
5485 | |
5486 | LambdaScopeInfo *const CurLSI = S.getCurLambda(); |
5487 | |
5488 | |
5489 | |
5490 | if (!CurLSI || CurLSI->ImpCaptureStyle == CurLSI->ImpCap_None || |
5491 | !UME->isImplicitAccess() || CurLSI->isCXXThisCaptured()) |
5492 | return; |
5493 | |
5494 | |
5495 | |
5496 | |
5497 | if (!enclosingClassIsRelatedToClassInWhichMembersWereFound(UME, S)) |
5498 | return; |
5499 | |
5500 | |
5501 | DeclContext *EnclosingFunctionCtx = S.CurContext->getParent()->getParent(); |
5502 | |
5503 | |
5504 | if (!EnclosingFunctionCtx->isDependentContext()) { |
5505 | |
5506 | |
5507 | |
5508 | if (!S.CheckCXXThisCapture(CallLoc, false, false)) |
5509 | S.CheckCXXThisCapture(CallLoc); |
5510 | } else if (S.CurContext->isDependentContext()) { |
5511 | |
5512 | |
5513 | |
5514 | if (CurLSI->ImpCaptureStyle != CurLSI->ImpCap_None) |
5515 | CurLSI->addPotentialThisCapture(CallLoc); |
5516 | } |
5517 | } |
5518 | |
5519 | |
5520 | |
5521 | |
5522 | ExprResult Sema::ActOnCallExpr(Scope *Scope, Expr *Fn, SourceLocation LParenLoc, |
5523 | MultiExprArg ArgExprs, SourceLocation RParenLoc, |
5524 | Expr *ExecConfig, bool IsExecConfig) { |
5525 | |
5526 | ExprResult Result = MaybeConvertParenListExprToParenExpr(Scope, Fn); |
5527 | if (Result.isInvalid()) return ExprError(); |
5528 | Fn = Result.get(); |
5529 | |
5530 | if (checkArgsForPlaceholders(*this, ArgExprs)) |
5531 | return ExprError(); |
5532 | |
5533 | if (getLangOpts().CPlusPlus) { |
5534 | |
5535 | if (isa<CXXPseudoDestructorExpr>(Fn)) { |
5536 | if (!ArgExprs.empty()) { |
5537 | |
5538 | Diag(Fn->getBeginLoc(), diag::err_pseudo_dtor_call_with_args) |
5539 | << FixItHint::CreateRemoval( |
5540 | SourceRange(ArgExprs.front()->getBeginLoc(), |
5541 | ArgExprs.back()->getEndLoc())); |
5542 | } |
5543 | |
5544 | return CallExpr::Create(Context, Fn, {}, Context.VoidTy, |
5545 | VK_RValue, RParenLoc); |
5546 | } |
5547 | if (Fn->getType() == Context.PseudoObjectTy) { |
5548 | ExprResult result = CheckPlaceholderExpr(Fn); |
5549 | if (result.isInvalid()) return ExprError(); |
5550 | Fn = result.get(); |
5551 | } |
5552 | |
5553 | |
5554 | |
5555 | if (Fn->isTypeDependent() || Expr::hasAnyTypeDependentArguments(ArgExprs)) { |
5556 | if (ExecConfig) { |
5557 | return CUDAKernelCallExpr::Create( |
5558 | Context, Fn, cast<CallExpr>(ExecConfig), ArgExprs, |
5559 | Context.DependentTy, VK_RValue, RParenLoc); |
5560 | } else { |
5561 | |
5562 | tryImplicitlyCaptureThisIfImplicitMemberFunctionAccessWithDependentArgs( |
5563 | *this, dyn_cast<UnresolvedMemberExpr>(Fn->IgnoreParens()), |
5564 | Fn->getBeginLoc()); |
5565 | |
5566 | return CallExpr::Create(Context, Fn, ArgExprs, Context.DependentTy, |
5567 | VK_RValue, RParenLoc); |
5568 | } |
5569 | } |
5570 | |
5571 | |
5572 | if (Fn->getType()->isRecordType()) |
5573 | return BuildCallToObjectOfClassType(Scope, Fn, LParenLoc, ArgExprs, |
5574 | RParenLoc); |
5575 | |
5576 | if (Fn->getType() == Context.UnknownAnyTy) { |
5577 | ExprResult result = rebuildUnknownAnyFunction(*this, Fn); |
5578 | if (result.isInvalid()) return ExprError(); |
5579 | Fn = result.get(); |
5580 | } |
5581 | |
5582 | if (Fn->getType() == Context.BoundMemberTy) { |
5583 | return BuildCallToMemberFunction(Scope, Fn, LParenLoc, ArgExprs, |
5584 | RParenLoc); |
5585 | } |
5586 | } |
5587 | |
5588 | |
5589 | if (Fn->getType() == Context.OverloadTy) { |
5590 | OverloadExpr::FindResult find = OverloadExpr::find(Fn); |
5591 | |
5592 | |
5593 | if (!find.HasFormOfMemberPointer) { |
5594 | if (Expr::hasAnyTypeDependentArguments(ArgExprs)) |
5595 | return CallExpr::Create(Context, Fn, ArgExprs, Context.DependentTy, |
5596 | VK_RValue, RParenLoc); |
5597 | OverloadExpr *ovl = find.Expression; |
5598 | if (UnresolvedLookupExpr *ULE = dyn_cast<UnresolvedLookupExpr>(ovl)) |
5599 | return BuildOverloadedCallExpr( |
5600 | Scope, Fn, ULE, LParenLoc, ArgExprs, RParenLoc, ExecConfig, |
5601 | , find.IsAddressOfOperand); |
5602 | return BuildCallToMemberFunction(Scope, Fn, LParenLoc, ArgExprs, |
5603 | RParenLoc); |
5604 | } |
5605 | } |
5606 | |
5607 | |
5608 | if (Fn->getType() == Context.UnknownAnyTy) { |
5609 | ExprResult result = rebuildUnknownAnyFunction(*this, Fn); |
5610 | if (result.isInvalid()) return ExprError(); |
5611 | Fn = result.get(); |
5612 | } |
5613 | |
5614 | Expr *NakedFn = Fn->IgnoreParens(); |
5615 | |
5616 | bool CallingNDeclIndirectly = false; |
5617 | NamedDecl *NDecl = nullptr; |
5618 | if (UnaryOperator *UnOp = dyn_cast<UnaryOperator>(NakedFn)) { |
5619 | if (UnOp->getOpcode() == UO_AddrOf) { |
5620 | CallingNDeclIndirectly = true; |
5621 | NakedFn = UnOp->getSubExpr()->IgnoreParens(); |
5622 | } |
5623 | } |
5624 | |
5625 | if (isa<DeclRefExpr>(NakedFn)) { |
5626 | NDecl = cast<DeclRefExpr>(NakedFn)->getDecl(); |
5627 | |
5628 | FunctionDecl *FDecl = dyn_cast<FunctionDecl>(NDecl); |
5629 | if (FDecl && FDecl->getBuiltinID()) { |
5630 | |
5631 | |
5632 | |
5633 | if ((FDecl = |
5634 | rewriteBuiltinFunctionDecl(this, Context, FDecl, ArgExprs))) { |
5635 | NDecl = FDecl; |
5636 | Fn = DeclRefExpr::Create( |
5637 | Context, FDecl->getQualifierLoc(), SourceLocation(), FDecl, false, |
5638 | SourceLocation(), FDecl->getType(), Fn->getValueKind(), FDecl); |
5639 | } |
5640 | } |
5641 | } else if (isa<MemberExpr>(NakedFn)) |
5642 | NDecl = cast<MemberExpr>(NakedFn)->getMemberDecl(); |
5643 | |
5644 | if (FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(NDecl)) { |
5645 | if (CallingNDeclIndirectly && !checkAddressOfFunctionIsAvailable( |
5646 | FD, , Fn->getBeginLoc())) |
5647 | return ExprError(); |
5648 | |
5649 | if (getLangOpts().OpenCL && checkOpenCLDisabledDecl(*FD, *Fn)) |
5650 | return ExprError(); |
5651 | |
5652 | checkDirectCallValidity(*this, Fn, FD, ArgExprs); |
5653 | } |
5654 | |
5655 | return BuildResolvedCallExpr(Fn, NDecl, LParenLoc, ArgExprs, RParenLoc, |
5656 | ExecConfig, IsExecConfig); |
5657 | } |
5658 | |
5659 | |
5660 | |
5661 | |
5662 | |
5663 | ExprResult Sema::ActOnAsTypeExpr(Expr *E, ParsedType ParsedDestTy, |
5664 | SourceLocation BuiltinLoc, |
5665 | SourceLocation RParenLoc) { |
5666 | ExprValueKind VK = VK_RValue; |
5667 | ExprObjectKind OK = OK_Ordinary; |
5668 | QualType DstTy = GetTypeFromParser(ParsedDestTy); |
5669 | QualType SrcTy = E->getType(); |
5670 | if (Context.getTypeSize(DstTy) != Context.getTypeSize(SrcTy)) |
5671 | return ExprError(Diag(BuiltinLoc, |
5672 | diag::err_invalid_astype_of_different_size) |
5673 | << DstTy |
5674 | << SrcTy |
5675 | << E->getSourceRange()); |
5676 | return new (Context) AsTypeExpr(E, DstTy, VK, OK, BuiltinLoc, RParenLoc); |
5677 | } |
5678 | |
5679 | |
5680 | |
5681 | |
5682 | |
5683 | |
5684 | ExprResult Sema::ActOnConvertVectorExpr(Expr *E, ParsedType ParsedDestTy, |
5685 | SourceLocation BuiltinLoc, |
5686 | SourceLocation RParenLoc) { |
5687 | TypeSourceInfo *TInfo; |
5688 | GetTypeFromParser(ParsedDestTy, &TInfo); |
5689 | return SemaConvertVectorExpr(E, TInfo, BuiltinLoc, RParenLoc); |
5690 | } |
5691 | |
5692 | |
5693 | |
5694 | |
5695 | |
5696 | |
5697 | |
5698 | ExprResult Sema::BuildResolvedCallExpr(Expr *Fn, NamedDecl *NDecl, |
5699 | SourceLocation LParenLoc, |
5700 | ArrayRef<Expr *> Args, |
5701 | SourceLocation RParenLoc, Expr *Config, |
5702 | bool IsExecConfig, ADLCallKind UsesADL) { |
5703 | FunctionDecl *FDecl = dyn_cast_or_null<FunctionDecl>(NDecl); |
5704 | unsigned BuiltinID = (FDecl ? FDecl->getBuiltinID() : 0); |
5705 | |
5706 | |
5707 | if (FDecl && FDecl->hasAttr<AnyX86InterruptAttr>()) { |
5708 | Diag(Fn->getExprLoc(), diag::err_anyx86_interrupt_called); |
5709 | return ExprError(); |
5710 | } |
5711 | |
5712 | |
5713 | |
5714 | |
5715 | |
5716 | if (auto *Caller = getCurFunctionDecl()) |
5717 | if (Caller->hasAttr<ARMInterruptAttr>()) { |
5718 | bool VFP = Context.getTargetInfo().hasFeature("vfp"); |
5719 | if (VFP && (!FDecl || !FDecl->hasAttr<ARMInterruptAttr>())) |
5720 | Diag(Fn->getExprLoc(), diag::warn_arm_interrupt_calling_convention); |
5721 | } |
5722 | |
5723 | |
5724 | |
5725 | |
5726 | ExprResult Result; |
5727 | QualType ResultTy; |
5728 | if (BuiltinID && |
5729 | Fn->getType()->isSpecificBuiltinType(BuiltinType::BuiltinFn)) { |
5730 | |
5731 | |
5732 | |
5733 | |
5734 | QualType FnPtrTy = Context.getPointerType(FDecl->getType()); |
5735 | Result = ImpCastExprToType(Fn, FnPtrTy, CK_BuiltinFnToFnPtr).get(); |
5736 | ResultTy = FDecl->getCallResultType(); |
5737 | } else { |
5738 | Result = CallExprUnaryConversions(Fn); |
5739 | ResultTy = Context.BoolTy; |
5740 | } |
5741 | if (Result.isInvalid()) |
5742 | return ExprError(); |
5743 | Fn = Result.get(); |
5744 | |
5745 | |
5746 | |
5747 | |
5748 | const FunctionType *FuncT = nullptr; |
5749 | if (!BuiltinID || !Context.BuiltinInfo.hasCustomTypechecking(BuiltinID)) { |
5750 | retry: |
5751 | if (const PointerType *PT = Fn->getType()->getAs<PointerType>()) { |
5752 | |
5753 | |
5754 | FuncT = PT->getPointeeType()->getAs<FunctionType>(); |
5755 | if (!FuncT) |
5756 | return ExprError(Diag(LParenLoc, diag::err_typecheck_call_not_function) |
5757 | << Fn->getType() << Fn->getSourceRange()); |
5758 | } else if (const BlockPointerType *BPT = |
5759 | Fn->getType()->getAs<BlockPointerType>()) { |
5760 | FuncT = BPT->getPointeeType()->castAs<FunctionType>(); |
5761 | } else { |
5762 | |
5763 | if (Fn->getType() == Context.UnknownAnyTy) { |
5764 | ExprResult rewrite = rebuildUnknownAnyFunction(*this, Fn); |
5765 | if (rewrite.isInvalid()) return ExprError(); |
5766 | Fn = rewrite.get(); |
5767 | goto retry; |
5768 | } |
5769 | |
5770 | return ExprError(Diag(LParenLoc, diag::err_typecheck_call_not_function) |
5771 | << Fn->getType() << Fn->getSourceRange()); |
5772 | } |
5773 | } |
5774 | |
5775 | |
5776 | |
5777 | |
5778 | const auto *Proto = dyn_cast_or_null<FunctionProtoType>(FuncT); |
5779 | unsigned NumParams = Proto ? Proto->getNumParams() : 0; |
5780 | |
5781 | CallExpr *TheCall; |
5782 | if (Config) { |
5783 | (0) . __assert_fail ("UsesADL == ADLCallKind..NotADL && \"CUDAKernelCallExpr should not use ADL\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5784, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(UsesADL == ADLCallKind::NotADL && |
5784 | (0) . __assert_fail ("UsesADL == ADLCallKind..NotADL && \"CUDAKernelCallExpr should not use ADL\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5784, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "CUDAKernelCallExpr should not use ADL"); |
5785 | TheCall = |
5786 | CUDAKernelCallExpr::Create(Context, Fn, cast<CallExpr>(Config), Args, |
5787 | ResultTy, VK_RValue, RParenLoc, NumParams); |
5788 | } else { |
5789 | TheCall = CallExpr::Create(Context, Fn, Args, ResultTy, VK_RValue, |
5790 | RParenLoc, NumParams, UsesADL); |
5791 | } |
5792 | |
5793 | if (!getLangOpts().CPlusPlus) { |
5794 | |
5795 | |
5796 | TheCall->shrinkNumArgs(Args.size()); |
5797 | |
5798 | |
5799 | |
5800 | |
5801 | ExprResult Result = CorrectDelayedTyposInExpr(TheCall); |
5802 | if (!Result.isUsable()) return ExprError(); |
5803 | CallExpr *TheOldCall = TheCall; |
5804 | TheCall = dyn_cast<CallExpr>(Result.get()); |
5805 | bool CorrectedTypos = TheCall != TheOldCall; |
5806 | if (!TheCall) return Result; |
5807 | Args = llvm::makeArrayRef(TheCall->getArgs(), TheCall->getNumArgs()); |
5808 | |
5809 | |
5810 | |
5811 | |
5812 | |
5813 | if (CorrectedTypos && Args.size() < NumParams) { |
5814 | if (Config) |
5815 | TheCall = CUDAKernelCallExpr::Create( |
5816 | Context, Fn, cast<CallExpr>(Config), Args, ResultTy, VK_RValue, |
5817 | RParenLoc, NumParams); |
5818 | else |
5819 | TheCall = CallExpr::Create(Context, Fn, Args, ResultTy, VK_RValue, |
5820 | RParenLoc, NumParams, UsesADL); |
5821 | } |
5822 | |
5823 | TheCall->setNumArgsUnsafe(std::max<unsigned>(Args.size(), NumParams)); |
5824 | } |
5825 | |
5826 | |
5827 | if (BuiltinID && Context.BuiltinInfo.hasCustomTypechecking(BuiltinID)) |
5828 | return CheckBuiltinFunctionCall(FDecl, BuiltinID, TheCall); |
5829 | |
5830 | if (getLangOpts().CUDA) { |
5831 | if (Config) { |
5832 | |
5833 | if (FDecl && !FDecl->hasAttr<CUDAGlobalAttr>()) |
5834 | return ExprError(Diag(LParenLoc,diag::err_kern_call_not_global_function) |
5835 | << FDecl << Fn->getSourceRange()); |
5836 | |
5837 | |
5838 | if (!FuncT->getReturnType()->isVoidType()) |
5839 | return ExprError(Diag(LParenLoc, diag::err_kern_type_not_void_return) |
5840 | << Fn->getType() << Fn->getSourceRange()); |
5841 | } else { |
5842 | |
5843 | if (FDecl && FDecl->hasAttr<CUDAGlobalAttr>()) |
5844 | return ExprError(Diag(LParenLoc, diag::err_global_call_not_config) |
5845 | << FDecl << Fn->getSourceRange()); |
5846 | } |
5847 | } |
5848 | |
5849 | |
5850 | if (CheckCallReturnType(FuncT->getReturnType(), Fn->getBeginLoc(), TheCall, |
5851 | FDecl)) |
5852 | return ExprError(); |
5853 | |
5854 | |
5855 | TheCall->setType(FuncT->getCallResultType(Context)); |
5856 | TheCall->setValueKind(Expr::getValueKindForType(FuncT->getReturnType())); |
5857 | |
5858 | if (Proto) { |
5859 | if (ConvertArgumentsForCall(TheCall, Fn, FDecl, Proto, Args, RParenLoc, |
5860 | IsExecConfig)) |
5861 | return ExprError(); |
5862 | } else { |
5863 | (0) . __assert_fail ("isa(FuncT) && \"Unknown FunctionType!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5863, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isa<FunctionNoProtoType>(FuncT) && "Unknown FunctionType!"); |
5864 | |
5865 | if (FDecl) { |
5866 | |
5867 | |
5868 | const FunctionDecl *Def = nullptr; |
5869 | if (FDecl->hasBody(Def) && Args.size() != Def->param_size()) { |
5870 | Proto = Def->getType()->getAs<FunctionProtoType>(); |
5871 | if (!Proto || !(Proto->isVariadic() && Args.size() >= Def->param_size())) |
5872 | Diag(RParenLoc, diag::warn_call_wrong_number_of_arguments) |
5873 | << (Args.size() > Def->param_size()) << FDecl << Fn->getSourceRange(); |
5874 | } |
5875 | |
5876 | |
5877 | |
5878 | if (!FDecl->hasPrototype()) |
5879 | Proto = FDecl->getType()->getAs<FunctionProtoType>(); |
5880 | } |
5881 | |
5882 | |
5883 | for (unsigned i = 0, e = Args.size(); i != e; i++) { |
5884 | Expr *Arg = Args[i]; |
5885 | |
5886 | if (Proto && i < Proto->getNumParams()) { |
5887 | InitializedEntity Entity = InitializedEntity::InitializeParameter( |
5888 | Context, Proto->getParamType(i), Proto->isParamConsumed(i)); |
5889 | ExprResult ArgE = |
5890 | PerformCopyInitialization(Entity, SourceLocation(), Arg); |
5891 | if (ArgE.isInvalid()) |
5892 | return true; |
5893 | |
5894 | Arg = ArgE.getAs<Expr>(); |
5895 | |
5896 | } else { |
5897 | ExprResult ArgE = DefaultArgumentPromotion(Arg); |
5898 | |
5899 | if (ArgE.isInvalid()) |
5900 | return true; |
5901 | |
5902 | Arg = ArgE.getAs<Expr>(); |
5903 | } |
5904 | |
5905 | if (RequireCompleteType(Arg->getBeginLoc(), Arg->getType(), |
5906 | diag::err_call_incomplete_argument, Arg)) |
5907 | return ExprError(); |
5908 | |
5909 | TheCall->setArg(i, Arg); |
5910 | } |
5911 | } |
5912 | |
5913 | if (CXXMethodDecl *Method = dyn_cast_or_null<CXXMethodDecl>(FDecl)) |
5914 | if (!Method->isStatic()) |
5915 | return ExprError(Diag(LParenLoc, diag::err_member_call_without_object) |
5916 | << Fn->getSourceRange()); |
5917 | |
5918 | |
5919 | if (NDecl) |
5920 | DiagnoseSentinelCalls(NDecl, LParenLoc, Args); |
5921 | |
5922 | |
5923 | if (FDecl) { |
5924 | if (CheckFunctionCall(FDecl, TheCall, Proto)) |
5925 | return ExprError(); |
5926 | |
5927 | checkFortifiedBuiltinMemoryFunction(FDecl, TheCall); |
5928 | |
5929 | if (BuiltinID) |
5930 | return CheckBuiltinFunctionCall(FDecl, BuiltinID, TheCall); |
5931 | } else if (NDecl) { |
5932 | if (CheckPointerCall(NDecl, TheCall, Proto)) |
5933 | return ExprError(); |
5934 | } else { |
5935 | if (CheckOtherCall(TheCall, Proto)) |
5936 | return ExprError(); |
5937 | } |
5938 | |
5939 | return MaybeBindToTemporary(TheCall); |
5940 | } |
5941 | |
5942 | ExprResult |
5943 | Sema::ActOnCompoundLiteral(SourceLocation LParenLoc, ParsedType Ty, |
5944 | SourceLocation RParenLoc, Expr *InitExpr) { |
5945 | (0) . __assert_fail ("Ty && \"ActOnCompoundLiteral(). missing type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5945, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Ty && "ActOnCompoundLiteral(): missing type"); |
5946 | (0) . __assert_fail ("InitExpr && \"ActOnCompoundLiteral(). missing expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 5946, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(InitExpr && "ActOnCompoundLiteral(): missing expression"); |
5947 | |
5948 | TypeSourceInfo *TInfo; |
5949 | QualType literalType = GetTypeFromParser(Ty, &TInfo); |
5950 | if (!TInfo) |
5951 | TInfo = Context.getTrivialTypeSourceInfo(literalType); |
5952 | |
5953 | return BuildCompoundLiteralExpr(LParenLoc, TInfo, RParenLoc, InitExpr); |
5954 | } |
5955 | |
5956 | ExprResult |
5957 | Sema::BuildCompoundLiteralExpr(SourceLocation LParenLoc, TypeSourceInfo *TInfo, |
5958 | SourceLocation RParenLoc, Expr *LiteralExpr) { |
5959 | QualType literalType = TInfo->getType(); |
5960 | |
5961 | if (literalType->isArrayType()) { |
5962 | if (RequireCompleteType(LParenLoc, Context.getBaseElementType(literalType), |
5963 | diag::err_illegal_decl_array_incomplete_type, |
5964 | SourceRange(LParenLoc, |
5965 | LiteralExpr->getSourceRange().getEnd()))) |
5966 | return ExprError(); |
5967 | if (literalType->isVariableArrayType()) |
5968 | return ExprError(Diag(LParenLoc, diag::err_variable_object_no_init) |
5969 | << SourceRange(LParenLoc, LiteralExpr->getSourceRange().getEnd())); |
5970 | } else if (!literalType->isDependentType() && |
5971 | RequireCompleteType(LParenLoc, literalType, |
5972 | diag::err_typecheck_decl_incomplete_type, |
5973 | SourceRange(LParenLoc, LiteralExpr->getSourceRange().getEnd()))) |
5974 | return ExprError(); |
5975 | |
5976 | InitializedEntity Entity |
5977 | = InitializedEntity::InitializeCompoundLiteralInit(TInfo); |
5978 | InitializationKind Kind |
5979 | = InitializationKind::CreateCStyleCast(LParenLoc, |
5980 | SourceRange(LParenLoc, RParenLoc), |
5981 | ); |
5982 | InitializationSequence InitSeq(*this, Entity, Kind, LiteralExpr); |
5983 | ExprResult Result = InitSeq.Perform(*this, Entity, Kind, LiteralExpr, |
5984 | &literalType); |
5985 | if (Result.isInvalid()) |
5986 | return ExprError(); |
5987 | LiteralExpr = Result.get(); |
5988 | |
5989 | bool isFileScope = !CurContext->isFunctionOrMethod(); |
5990 | |
5991 | |
5992 | |
5993 | |
5994 | |
5995 | |
5996 | |
5997 | |
5998 | |
5999 | |
6000 | |
6001 | |
6002 | |
6003 | |
6004 | |
6005 | |
6006 | |
6007 | |
6008 | |
6009 | ExprValueKind VK = |
6010 | (getLangOpts().CPlusPlus && !(isFileScope && literalType->isArrayType())) |
6011 | ? VK_RValue |
6012 | : VK_LValue; |
6013 | |
6014 | if (isFileScope) |
6015 | if (auto ILE = dyn_cast<InitListExpr>(LiteralExpr)) |
6016 | for (unsigned i = 0, j = ILE->getNumInits(); i != j; i++) { |
6017 | Expr *Init = ILE->getInit(i); |
6018 | ILE->setInit(i, ConstantExpr::Create(Context, Init)); |
6019 | } |
6020 | |
6021 | Expr *E = new (Context) CompoundLiteralExpr(LParenLoc, TInfo, literalType, |
6022 | VK, LiteralExpr, isFileScope); |
6023 | if (isFileScope) { |
6024 | if (!LiteralExpr->isTypeDependent() && |
6025 | !LiteralExpr->isValueDependent() && |
6026 | !literalType->isDependentType()) |
6027 | if (CheckForConstantInitializer(LiteralExpr, literalType)) |
6028 | return ExprError(); |
6029 | } else if (literalType.getAddressSpace() != LangAS::opencl_private && |
6030 | literalType.getAddressSpace() != LangAS::Default) { |
6031 | |
6032 | |
6033 | |
6034 | Diag(LParenLoc, diag::err_compound_literal_with_address_space) |
6035 | << SourceRange(LParenLoc, LiteralExpr->getSourceRange().getEnd()); |
6036 | return ExprError(); |
6037 | } |
6038 | |
6039 | return MaybeBindToTemporary(E); |
6040 | } |
6041 | |
6042 | ExprResult |
6043 | Sema::ActOnInitList(SourceLocation LBraceLoc, MultiExprArg InitArgList, |
6044 | SourceLocation RBraceLoc) { |
6045 | |
6046 | |
6047 | for (unsigned I = 0, E = InitArgList.size(); I != E; ++I) { |
6048 | if (InitArgList[I]->getType()->isNonOverloadPlaceholderType()) { |
6049 | ExprResult result = CheckPlaceholderExpr(InitArgList[I]); |
6050 | |
6051 | |
6052 | |
6053 | if (result.isInvalid()) continue; |
6054 | |
6055 | InitArgList[I] = result.get(); |
6056 | } |
6057 | } |
6058 | |
6059 | |
6060 | |
6061 | |
6062 | InitListExpr *E = new (Context) InitListExpr(Context, LBraceLoc, InitArgList, |
6063 | RBraceLoc); |
6064 | E->setType(Context.VoidTy); |
6065 | return E; |
6066 | } |
6067 | |
6068 | |
6069 | void Sema::maybeExtendBlockObject(ExprResult &E) { |
6070 | getType()->isBlockPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6070, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E.get()->getType()->isBlockPointerType()); |
6071 | isRValue()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6071, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E.get()->isRValue()); |
6072 | |
6073 | |
6074 | if (!getLangOpts().ObjCAutoRefCount) return; |
6075 | |
6076 | E = ImplicitCastExpr::Create(Context, E.get()->getType(), |
6077 | CK_ARCExtendBlockObject, E.get(), |
6078 | nullptr, VK_RValue); |
6079 | Cleanup.setExprNeedsCleanups(true); |
6080 | } |
6081 | |
6082 | |
6083 | |
6084 | CastKind Sema::PrepareCastToObjCObjectPointer(ExprResult &E) { |
6085 | QualType type = E.get()->getType(); |
6086 | if (type->isObjCObjectPointerType()) { |
6087 | return CK_BitCast; |
6088 | } else if (type->isBlockPointerType()) { |
6089 | maybeExtendBlockObject(E); |
6090 | return CK_BlockPointerToObjCPointerCast; |
6091 | } else { |
6092 | isPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6092, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(type->isPointerType()); |
6093 | return CK_CPointerToObjCPointerCast; |
6094 | } |
6095 | } |
6096 | |
6097 | |
6098 | |
6099 | CastKind Sema::PrepareScalarCast(ExprResult &Src, QualType DestTy) { |
6100 | |
6101 | |
6102 | |
6103 | |
6104 | QualType SrcTy = Src.get()->getType(); |
6105 | if (Context.hasSameUnqualifiedType(SrcTy, DestTy)) |
6106 | return CK_NoOp; |
6107 | |
6108 | switch (Type::ScalarTypeKind SrcKind = SrcTy->getScalarTypeKind()) { |
6109 | case Type::STK_MemberPointer: |
6110 | llvm_unreachable("member pointer type in C"); |
6111 | |
6112 | case Type::STK_CPointer: |
6113 | case Type::STK_BlockPointer: |
6114 | case Type::STK_ObjCObjectPointer: |
6115 | switch (DestTy->getScalarTypeKind()) { |
6116 | case Type::STK_CPointer: { |
6117 | LangAS SrcAS = SrcTy->getPointeeType().getAddressSpace(); |
6118 | LangAS DestAS = DestTy->getPointeeType().getAddressSpace(); |
6119 | if (SrcAS != DestAS) |
6120 | return CK_AddressSpaceConversion; |
6121 | if (Context.hasCvrSimilarType(SrcTy, DestTy)) |
6122 | return CK_NoOp; |
6123 | return CK_BitCast; |
6124 | } |
6125 | case Type::STK_BlockPointer: |
6126 | return (SrcKind == Type::STK_BlockPointer |
6127 | ? CK_BitCast : CK_AnyPointerToBlockPointerCast); |
6128 | case Type::STK_ObjCObjectPointer: |
6129 | if (SrcKind == Type::STK_ObjCObjectPointer) |
6130 | return CK_BitCast; |
6131 | if (SrcKind == Type::STK_CPointer) |
6132 | return CK_CPointerToObjCPointerCast; |
6133 | maybeExtendBlockObject(Src); |
6134 | return CK_BlockPointerToObjCPointerCast; |
6135 | case Type::STK_Bool: |
6136 | return CK_PointerToBoolean; |
6137 | case Type::STK_Integral: |
6138 | return CK_PointerToIntegral; |
6139 | case Type::STK_Floating: |
6140 | case Type::STK_FloatingComplex: |
6141 | case Type::STK_IntegralComplex: |
6142 | case Type::STK_MemberPointer: |
6143 | case Type::STK_FixedPoint: |
6144 | llvm_unreachable("illegal cast from pointer"); |
6145 | } |
6146 | llvm_unreachable("Should have returned before this"); |
6147 | |
6148 | case Type::STK_FixedPoint: |
6149 | switch (DestTy->getScalarTypeKind()) { |
6150 | case Type::STK_FixedPoint: |
6151 | return CK_FixedPointCast; |
6152 | case Type::STK_Bool: |
6153 | return CK_FixedPointToBoolean; |
6154 | case Type::STK_Integral: |
6155 | return CK_FixedPointToIntegral; |
6156 | case Type::STK_Floating: |
6157 | case Type::STK_IntegralComplex: |
6158 | case Type::STK_FloatingComplex: |
6159 | Diag(Src.get()->getExprLoc(), |
6160 | diag::err_unimplemented_conversion_with_fixed_point_type) |
6161 | << DestTy; |
6162 | return CK_IntegralCast; |
6163 | case Type::STK_CPointer: |
6164 | case Type::STK_ObjCObjectPointer: |
6165 | case Type::STK_BlockPointer: |
6166 | case Type::STK_MemberPointer: |
6167 | llvm_unreachable("illegal cast to pointer type"); |
6168 | } |
6169 | llvm_unreachable("Should have returned before this"); |
6170 | |
6171 | case Type::STK_Bool: |
6172 | case Type::STK_Integral: |
6173 | switch (DestTy->getScalarTypeKind()) { |
6174 | case Type::STK_CPointer: |
6175 | case Type::STK_ObjCObjectPointer: |
6176 | case Type::STK_BlockPointer: |
6177 | if (Src.get()->isNullPointerConstant(Context, |
6178 | Expr::NPC_ValueDependentIsNull)) |
6179 | return CK_NullToPointer; |
6180 | return CK_IntegralToPointer; |
6181 | case Type::STK_Bool: |
6182 | return CK_IntegralToBoolean; |
6183 | case Type::STK_Integral: |
6184 | return CK_IntegralCast; |
6185 | case Type::STK_Floating: |
6186 | return CK_IntegralToFloating; |
6187 | case Type::STK_IntegralComplex: |
6188 | Src = ImpCastExprToType(Src.get(), |
6189 | DestTy->castAs<ComplexType>()->getElementType(), |
6190 | CK_IntegralCast); |
6191 | return CK_IntegralRealToComplex; |
6192 | case Type::STK_FloatingComplex: |
6193 | Src = ImpCastExprToType(Src.get(), |
6194 | DestTy->castAs<ComplexType>()->getElementType(), |
6195 | CK_IntegralToFloating); |
6196 | return CK_FloatingRealToComplex; |
6197 | case Type::STK_MemberPointer: |
6198 | llvm_unreachable("member pointer type in C"); |
6199 | case Type::STK_FixedPoint: |
6200 | return CK_IntegralToFixedPoint; |
6201 | } |
6202 | llvm_unreachable("Should have returned before this"); |
6203 | |
6204 | case Type::STK_Floating: |
6205 | switch (DestTy->getScalarTypeKind()) { |
6206 | case Type::STK_Floating: |
6207 | return CK_FloatingCast; |
6208 | case Type::STK_Bool: |
6209 | return CK_FloatingToBoolean; |
6210 | case Type::STK_Integral: |
6211 | return CK_FloatingToIntegral; |
6212 | case Type::STK_FloatingComplex: |
6213 | Src = ImpCastExprToType(Src.get(), |
6214 | DestTy->castAs<ComplexType>()->getElementType(), |
6215 | CK_FloatingCast); |
6216 | return CK_FloatingRealToComplex; |
6217 | case Type::STK_IntegralComplex: |
6218 | Src = ImpCastExprToType(Src.get(), |
6219 | DestTy->castAs<ComplexType>()->getElementType(), |
6220 | CK_FloatingToIntegral); |
6221 | return CK_IntegralRealToComplex; |
6222 | case Type::STK_CPointer: |
6223 | case Type::STK_ObjCObjectPointer: |
6224 | case Type::STK_BlockPointer: |
6225 | llvm_unreachable("valid float->pointer cast?"); |
6226 | case Type::STK_MemberPointer: |
6227 | llvm_unreachable("member pointer type in C"); |
6228 | case Type::STK_FixedPoint: |
6229 | Diag(Src.get()->getExprLoc(), |
6230 | diag::err_unimplemented_conversion_with_fixed_point_type) |
6231 | << SrcTy; |
6232 | return CK_IntegralCast; |
6233 | } |
6234 | llvm_unreachable("Should have returned before this"); |
6235 | |
6236 | case Type::STK_FloatingComplex: |
6237 | switch (DestTy->getScalarTypeKind()) { |
6238 | case Type::STK_FloatingComplex: |
6239 | return CK_FloatingComplexCast; |
6240 | case Type::STK_IntegralComplex: |
6241 | return CK_FloatingComplexToIntegralComplex; |
6242 | case Type::STK_Floating: { |
6243 | QualType ET = SrcTy->castAs<ComplexType>()->getElementType(); |
6244 | if (Context.hasSameType(ET, DestTy)) |
6245 | return CK_FloatingComplexToReal; |
6246 | Src = ImpCastExprToType(Src.get(), ET, CK_FloatingComplexToReal); |
6247 | return CK_FloatingCast; |
6248 | } |
6249 | case Type::STK_Bool: |
6250 | return CK_FloatingComplexToBoolean; |
6251 | case Type::STK_Integral: |
6252 | Src = ImpCastExprToType(Src.get(), |
6253 | SrcTy->castAs<ComplexType>()->getElementType(), |
6254 | CK_FloatingComplexToReal); |
6255 | return CK_FloatingToIntegral; |
6256 | case Type::STK_CPointer: |
6257 | case Type::STK_ObjCObjectPointer: |
6258 | case Type::STK_BlockPointer: |
6259 | llvm_unreachable("valid complex float->pointer cast?"); |
6260 | case Type::STK_MemberPointer: |
6261 | llvm_unreachable("member pointer type in C"); |
6262 | case Type::STK_FixedPoint: |
6263 | Diag(Src.get()->getExprLoc(), |
6264 | diag::err_unimplemented_conversion_with_fixed_point_type) |
6265 | << SrcTy; |
6266 | return CK_IntegralCast; |
6267 | } |
6268 | llvm_unreachable("Should have returned before this"); |
6269 | |
6270 | case Type::STK_IntegralComplex: |
6271 | switch (DestTy->getScalarTypeKind()) { |
6272 | case Type::STK_FloatingComplex: |
6273 | return CK_IntegralComplexToFloatingComplex; |
6274 | case Type::STK_IntegralComplex: |
6275 | return CK_IntegralComplexCast; |
6276 | case Type::STK_Integral: { |
6277 | QualType ET = SrcTy->castAs<ComplexType>()->getElementType(); |
6278 | if (Context.hasSameType(ET, DestTy)) |
6279 | return CK_IntegralComplexToReal; |
6280 | Src = ImpCastExprToType(Src.get(), ET, CK_IntegralComplexToReal); |
6281 | return CK_IntegralCast; |
6282 | } |
6283 | case Type::STK_Bool: |
6284 | return CK_IntegralComplexToBoolean; |
6285 | case Type::STK_Floating: |
6286 | Src = ImpCastExprToType(Src.get(), |
6287 | SrcTy->castAs<ComplexType>()->getElementType(), |
6288 | CK_IntegralComplexToReal); |
6289 | return CK_IntegralToFloating; |
6290 | case Type::STK_CPointer: |
6291 | case Type::STK_ObjCObjectPointer: |
6292 | case Type::STK_BlockPointer: |
6293 | llvm_unreachable("valid complex int->pointer cast?"); |
6294 | case Type::STK_MemberPointer: |
6295 | llvm_unreachable("member pointer type in C"); |
6296 | case Type::STK_FixedPoint: |
6297 | Diag(Src.get()->getExprLoc(), |
6298 | diag::err_unimplemented_conversion_with_fixed_point_type) |
6299 | << SrcTy; |
6300 | return CK_IntegralCast; |
6301 | } |
6302 | llvm_unreachable("Should have returned before this"); |
6303 | } |
6304 | |
6305 | llvm_unreachable("Unhandled scalar cast"); |
6306 | } |
6307 | |
6308 | static bool breakDownVectorType(QualType type, uint64_t &len, |
6309 | QualType &eltType) { |
6310 | |
6311 | if (const VectorType *vecType = type->getAs<VectorType>()) { |
6312 | len = vecType->getNumElements(); |
6313 | eltType = vecType->getElementType(); |
6314 | isScalarType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6314, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(eltType->isScalarType()); |
6315 | return true; |
6316 | } |
6317 | |
6318 | |
6319 | |
6320 | if (!type->isRealType()) return false; |
6321 | |
6322 | len = 1; |
6323 | eltType = type; |
6324 | return true; |
6325 | } |
6326 | |
6327 | |
6328 | |
6329 | |
6330 | |
6331 | |
6332 | |
6333 | |
6334 | bool Sema::areLaxCompatibleVectorTypes(QualType srcTy, QualType destTy) { |
6335 | isVectorType() || srcTy->isVectorType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6335, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(destTy->isVectorType() || srcTy->isVectorType()); |
6336 | |
6337 | |
6338 | |
6339 | |
6340 | |
6341 | |
6342 | if (srcTy->isScalarType() && destTy->isExtVectorType()) return false; |
6343 | if (destTy->isScalarType() && srcTy->isExtVectorType()) return false; |
6344 | |
6345 | uint64_t srcLen, destLen; |
6346 | QualType srcEltTy, destEltTy; |
6347 | if (!breakDownVectorType(srcTy, srcLen, srcEltTy)) return false; |
6348 | if (!breakDownVectorType(destTy, destLen, destEltTy)) return false; |
6349 | |
6350 | |
6351 | |
6352 | |
6353 | uint64_t srcEltSize = Context.getTypeSize(srcEltTy); |
6354 | uint64_t destEltSize = Context.getTypeSize(destEltTy); |
6355 | |
6356 | return (srcLen * srcEltSize == destLen * destEltSize); |
6357 | } |
6358 | |
6359 | |
6360 | |
6361 | bool Sema::isLaxVectorConversion(QualType srcTy, QualType destTy) { |
6362 | isVectorType() || srcTy->isVectorType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6362, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(destTy->isVectorType() || srcTy->isVectorType()); |
6363 | |
6364 | if (!Context.getLangOpts().LaxVectorConversions) |
6365 | return false; |
6366 | return areLaxCompatibleVectorTypes(srcTy, destTy); |
6367 | } |
6368 | |
6369 | bool Sema::CheckVectorCast(SourceRange R, QualType VectorTy, QualType Ty, |
6370 | CastKind &Kind) { |
6371 | (0) . __assert_fail ("VectorTy->isVectorType() && \"Not a vector type!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6371, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(VectorTy->isVectorType() && "Not a vector type!"); |
6372 | |
6373 | if (Ty->isVectorType() || Ty->isIntegralType(Context)) { |
6374 | if (!areLaxCompatibleVectorTypes(Ty, VectorTy)) |
6375 | return Diag(R.getBegin(), |
6376 | Ty->isVectorType() ? |
6377 | diag::err_invalid_conversion_between_vectors : |
6378 | diag::err_invalid_conversion_between_vector_and_integer) |
6379 | << VectorTy << Ty << R; |
6380 | } else |
6381 | return Diag(R.getBegin(), |
6382 | diag::err_invalid_conversion_between_vector_and_scalar) |
6383 | << VectorTy << Ty << R; |
6384 | |
6385 | Kind = CK_BitCast; |
6386 | return false; |
6387 | } |
6388 | |
6389 | ExprResult Sema::prepareVectorSplat(QualType VectorTy, Expr *SplattedExpr) { |
6390 | QualType DestElemTy = VectorTy->castAs<VectorType>()->getElementType(); |
6391 | |
6392 | if (DestElemTy == SplattedExpr->getType()) |
6393 | return SplattedExpr; |
6394 | |
6395 | isFloatingType() || DestElemTy->isIntegralOrEnumerationType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6396, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(DestElemTy->isFloatingType() || |
6396 | isFloatingType() || DestElemTy->isIntegralOrEnumerationType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6396, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> DestElemTy->isIntegralOrEnumerationType()); |
6397 | |
6398 | CastKind CK; |
6399 | if (VectorTy->isExtVectorType() && SplattedExpr->getType()->isBooleanType()) { |
6400 | |
6401 | |
6402 | if (DestElemTy->isFloatingType()) { |
6403 | |
6404 | |
6405 | ExprResult CastExprRes = ImpCastExprToType(SplattedExpr, Context.IntTy, |
6406 | CK_BooleanToSignedIntegral); |
6407 | SplattedExpr = CastExprRes.get(); |
6408 | CK = CK_IntegralToFloating; |
6409 | } else { |
6410 | CK = CK_BooleanToSignedIntegral; |
6411 | } |
6412 | } else { |
6413 | ExprResult CastExprRes = SplattedExpr; |
6414 | CK = PrepareScalarCast(CastExprRes, DestElemTy); |
6415 | if (CastExprRes.isInvalid()) |
6416 | return ExprError(); |
6417 | SplattedExpr = CastExprRes.get(); |
6418 | } |
6419 | return ImpCastExprToType(SplattedExpr, DestElemTy, CK); |
6420 | } |
6421 | |
6422 | ExprResult Sema::CheckExtVectorCast(SourceRange R, QualType DestTy, |
6423 | Expr *CastExpr, CastKind &Kind) { |
6424 | (0) . __assert_fail ("DestTy->isExtVectorType() && \"Not an extended vector type!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6424, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(DestTy->isExtVectorType() && "Not an extended vector type!"); |
6425 | |
6426 | QualType SrcTy = CastExpr->getType(); |
6427 | |
6428 | |
6429 | |
6430 | |
6431 | |
6432 | if (SrcTy->isVectorType()) { |
6433 | if (!areLaxCompatibleVectorTypes(SrcTy, DestTy) || |
6434 | (getLangOpts().OpenCL && |
6435 | !Context.hasSameUnqualifiedType(DestTy, SrcTy))) { |
6436 | Diag(R.getBegin(),diag::err_invalid_conversion_between_ext_vectors) |
6437 | << DestTy << SrcTy << R; |
6438 | return ExprError(); |
6439 | } |
6440 | Kind = CK_BitCast; |
6441 | return CastExpr; |
6442 | } |
6443 | |
6444 | |
6445 | |
6446 | |
6447 | if (SrcTy->isPointerType()) |
6448 | return Diag(R.getBegin(), |
6449 | diag::err_invalid_conversion_between_vector_and_scalar) |
6450 | << DestTy << SrcTy << R; |
6451 | |
6452 | Kind = CK_VectorSplat; |
6453 | return prepareVectorSplat(DestTy, CastExpr); |
6454 | } |
6455 | |
6456 | ExprResult |
6457 | Sema::ActOnCastExpr(Scope *S, SourceLocation LParenLoc, |
6458 | Declarator &D, ParsedType &Ty, |
6459 | SourceLocation RParenLoc, Expr *CastExpr) { |
6460 | (0) . __assert_fail ("!D.isInvalidType() && (CastExpr != nullptr) && \"ActOnCastExpr(). missing type or expr\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6461, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!D.isInvalidType() && (CastExpr != nullptr) && |
6461 | (0) . __assert_fail ("!D.isInvalidType() && (CastExpr != nullptr) && \"ActOnCastExpr(). missing type or expr\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6461, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "ActOnCastExpr(): missing type or expr"); |
6462 | |
6463 | TypeSourceInfo *castTInfo = GetTypeForDeclaratorCast(D, CastExpr->getType()); |
6464 | if (D.isInvalidType()) |
6465 | return ExprError(); |
6466 | |
6467 | if (getLangOpts().CPlusPlus) { |
6468 | |
6469 | CheckExtraCXXDefaultArguments(D); |
6470 | } else { |
6471 | |
6472 | ExprResult Res = CorrectDelayedTyposInExpr(CastExpr); |
6473 | if (!Res.isUsable()) |
6474 | return ExprError(); |
6475 | CastExpr = Res.get(); |
6476 | } |
6477 | |
6478 | checkUnusedDeclAttributes(D); |
6479 | |
6480 | QualType castType = castTInfo->getType(); |
6481 | Ty = CreateParsedType(castType, castTInfo); |
6482 | |
6483 | bool isVectorLiteral = false; |
6484 | |
6485 | |
6486 | |
6487 | ParenExpr *PE = dyn_cast<ParenExpr>(CastExpr); |
6488 | ParenListExpr *PLE = dyn_cast<ParenListExpr>(CastExpr); |
6489 | if ((getLangOpts().AltiVec || getLangOpts().ZVector || getLangOpts().OpenCL) |
6490 | && castType->isVectorType() && (PE || PLE)) { |
6491 | if (PLE && PLE->getNumExprs() == 0) { |
6492 | Diag(PLE->getExprLoc(), diag::err_altivec_empty_initializer); |
6493 | return ExprError(); |
6494 | } |
6495 | if (PE || PLE->getNumExprs() == 1) { |
6496 | Expr *E = (PE ? PE->getSubExpr() : PLE->getExpr(0)); |
6497 | if (!E->getType()->isVectorType()) |
6498 | isVectorLiteral = true; |
6499 | } |
6500 | else |
6501 | isVectorLiteral = true; |
6502 | } |
6503 | |
6504 | |
6505 | |
6506 | if (isVectorLiteral) |
6507 | return BuildVectorLiteral(LParenLoc, RParenLoc, CastExpr, castTInfo); |
6508 | |
6509 | |
6510 | |
6511 | |
6512 | if (isa<ParenListExpr>(CastExpr)) { |
6513 | ExprResult Result = MaybeConvertParenListExprToParenExpr(S, CastExpr); |
6514 | if (Result.isInvalid()) return ExprError(); |
6515 | CastExpr = Result.get(); |
6516 | } |
6517 | |
6518 | if (getLangOpts().CPlusPlus && !castType->isVoidType() && |
6519 | !getSourceManager().isInSystemMacro(LParenLoc)) |
6520 | Diag(LParenLoc, diag::warn_old_style_cast) << CastExpr->getSourceRange(); |
6521 | |
6522 | CheckTollFreeBridgeCast(castType, CastExpr); |
6523 | |
6524 | CheckObjCBridgeRelatedCast(castType, CastExpr); |
6525 | |
6526 | DiscardMisalignedMemberAddress(castType.getTypePtr(), CastExpr); |
6527 | |
6528 | return BuildCStyleCastExpr(LParenLoc, castTInfo, RParenLoc, CastExpr); |
6529 | } |
6530 | |
6531 | ExprResult Sema::BuildVectorLiteral(SourceLocation LParenLoc, |
6532 | SourceLocation RParenLoc, Expr *E, |
6533 | TypeSourceInfo *TInfo) { |
6534 | (0) . __assert_fail ("(isa(E) || isa(E)) && \"Expected paren or paren list expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6535, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((isa<ParenListExpr>(E) || isa<ParenExpr>(E)) && |
6535 | (0) . __assert_fail ("(isa(E) || isa(E)) && \"Expected paren or paren list expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6535, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Expected paren or paren list expression"); |
6536 | |
6537 | Expr **exprs; |
6538 | unsigned numExprs; |
6539 | Expr *subExpr; |
6540 | SourceLocation LiteralLParenLoc, LiteralRParenLoc; |
6541 | if (ParenListExpr *PE = dyn_cast<ParenListExpr>(E)) { |
6542 | LiteralLParenLoc = PE->getLParenLoc(); |
6543 | LiteralRParenLoc = PE->getRParenLoc(); |
6544 | exprs = PE->getExprs(); |
6545 | numExprs = PE->getNumExprs(); |
6546 | } else { |
6547 | LiteralLParenLoc = cast<ParenExpr>(E)->getLParen(); |
6548 | LiteralRParenLoc = cast<ParenExpr>(E)->getRParen(); |
6549 | subExpr = cast<ParenExpr>(E)->getSubExpr(); |
6550 | exprs = &subExpr; |
6551 | numExprs = 1; |
6552 | } |
6553 | |
6554 | QualType Ty = TInfo->getType(); |
6555 | (0) . __assert_fail ("Ty->isVectorType() && \"Expected vector type\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 6555, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Ty->isVectorType() && "Expected vector type"); |
6556 | |
6557 | SmallVector<Expr *, 8> initExprs; |
6558 | const VectorType *VTy = Ty->getAs<VectorType>(); |
6559 | unsigned numElems = Ty->getAs<VectorType>()->getNumElements(); |
6560 | |
6561 | |
6562 | |
6563 | |
6564 | |
6565 | if (VTy->getVectorKind() == VectorType::AltiVecVector) { |
6566 | |
6567 | |
6568 | |
6569 | if (numExprs == 1) { |
6570 | QualType ElemTy = Ty->getAs<VectorType>()->getElementType(); |
6571 | ExprResult Literal = DefaultLvalueConversion(exprs[0]); |
6572 | if (Literal.isInvalid()) |
6573 | return ExprError(); |
6574 | Literal = ImpCastExprToType(Literal.get(), ElemTy, |
6575 | PrepareScalarCast(Literal, ElemTy)); |
6576 | return BuildCStyleCastExpr(LParenLoc, TInfo, RParenLoc, Literal.get()); |
6577 | } |
6578 | else if (numExprs < numElems) { |
6579 | Diag(E->getExprLoc(), |
6580 | diag::err_incorrect_number_of_vector_initializers); |
6581 | return ExprError(); |
6582 | } |
6583 | else |
6584 | initExprs.append(exprs, exprs + numExprs); |
6585 | } |
6586 | else { |
6587 | |
6588 | |
6589 | if (getLangOpts().OpenCL && |
6590 | VTy->getVectorKind() == VectorType::GenericVector && |
6591 | numExprs == 1) { |
6592 | QualType ElemTy = Ty->getAs<VectorType>()->getElementType(); |
6593 | ExprResult Literal = DefaultLvalueConversion(exprs[0]); |
6594 | if (Literal.isInvalid()) |
6595 | return ExprError(); |
6596 | Literal = ImpCastExprToType(Literal.get(), ElemTy, |
6597 | PrepareScalarCast(Literal, ElemTy)); |
6598 | return BuildCStyleCastExpr(LParenLoc, TInfo, RParenLoc, Literal.get()); |
6599 | } |
6600 | |
6601 | initExprs.append(exprs, exprs + numExprs); |
6602 | } |
6603 | |
6604 | |
6605 | InitListExpr *initE = new (Context) InitListExpr(Context, LiteralLParenLoc, |
6606 | initExprs, LiteralRParenLoc); |
6607 | initE->setType(Ty); |
6608 | return BuildCompoundLiteralExpr(LParenLoc, TInfo, RParenLoc, initE); |
6609 | } |
6610 | |
6611 | |
6612 | |
6613 | ExprResult |
6614 | Sema::MaybeConvertParenListExprToParenExpr(Scope *S, Expr *OrigExpr) { |
6615 | ParenListExpr *E = dyn_cast<ParenListExpr>(OrigExpr); |
6616 | if (!E) |
6617 | return OrigExpr; |
6618 | |
6619 | ExprResult Result(E->getExpr(0)); |
6620 | |
6621 | for (unsigned i = 1, e = E->getNumExprs(); i != e && !Result.isInvalid(); ++i) |
6622 | Result = ActOnBinOp(S, E->getExprLoc(), tok::comma, Result.get(), |
6623 | E->getExpr(i)); |
6624 | |
6625 | if (Result.isInvalid()) return ExprError(); |
6626 | |
6627 | return ActOnParenExpr(E->getLParenLoc(), E->getRParenLoc(), Result.get()); |
6628 | } |
6629 | |
6630 | ExprResult Sema::ActOnParenListExpr(SourceLocation L, |
6631 | SourceLocation R, |
6632 | MultiExprArg Val) { |
6633 | return ParenListExpr::Create(Context, L, Val, R); |
6634 | } |
6635 | |
6636 | |
6637 | |
6638 | |
6639 | bool Sema::DiagnoseConditionalForNull(Expr *LHSExpr, Expr *RHSExpr, |
6640 | SourceLocation QuestionLoc) { |
6641 | Expr *NullExpr = LHSExpr; |
6642 | Expr *NonPointerExpr = RHSExpr; |
6643 | Expr::NullPointerConstantKind NullKind = |
6644 | NullExpr->isNullPointerConstant(Context, |
6645 | Expr::NPC_ValueDependentIsNotNull); |
6646 | |
6647 | if (NullKind == Expr::NPCK_NotNull) { |
6648 | NullExpr = RHSExpr; |
6649 | NonPointerExpr = LHSExpr; |
6650 | NullKind = |
6651 | NullExpr->isNullPointerConstant(Context, |
6652 | Expr::NPC_ValueDependentIsNotNull); |
6653 | } |
6654 | |
6655 | if (NullKind == Expr::NPCK_NotNull) |
6656 | return false; |
6657 | |
6658 | if (NullKind == Expr::NPCK_ZeroExpression) |
6659 | return false; |
6660 | |
6661 | if (NullKind == Expr::NPCK_ZeroLiteral) { |
6662 | |
6663 | |
6664 | NullExpr = NullExpr->IgnoreParenImpCasts(); |
6665 | SourceLocation loc = NullExpr->getExprLoc(); |
6666 | if (!findMacroSpelling(loc, "NULL")) |
6667 | return false; |
6668 | } |
6669 | |
6670 | int DiagType = (NullKind == Expr::NPCK_CXX11_nullptr); |
6671 | Diag(QuestionLoc, diag::err_typecheck_cond_incompatible_operands_null) |
6672 | << NonPointerExpr->getType() << DiagType |
6673 | << NonPointerExpr->getSourceRange(); |
6674 | return true; |
6675 | } |
6676 | |
6677 | |
6678 | static bool checkCondition(Sema &S, Expr *Cond, SourceLocation QuestionLoc) { |
6679 | QualType CondTy = Cond->getType(); |
6680 | |
6681 | |
6682 | if (S.getLangOpts().OpenCL && CondTy->isFloatingType()) { |
6683 | S.Diag(QuestionLoc, diag::err_typecheck_cond_expect_nonfloat) |
6684 | << CondTy << Cond->getSourceRange(); |
6685 | return true; |
6686 | } |
6687 | |
6688 | |
6689 | if (CondTy->isScalarType()) return false; |
6690 | |
6691 | S.Diag(QuestionLoc, diag::err_typecheck_cond_expect_scalar) |
6692 | << CondTy << Cond->getSourceRange(); |
6693 | return true; |
6694 | } |
6695 | |
6696 | |
6697 | static QualType checkConditionalVoidType(Sema &S, ExprResult &LHS, |
6698 | ExprResult &RHS) { |
6699 | Expr *LHSExpr = LHS.get(); |
6700 | Expr *RHSExpr = RHS.get(); |
6701 | |
6702 | if (!LHSExpr->getType()->isVoidType()) |
6703 | S.Diag(RHSExpr->getBeginLoc(), diag::ext_typecheck_cond_one_void) |
6704 | << RHSExpr->getSourceRange(); |
6705 | if (!RHSExpr->getType()->isVoidType()) |
6706 | S.Diag(LHSExpr->getBeginLoc(), diag::ext_typecheck_cond_one_void) |
6707 | << LHSExpr->getSourceRange(); |
6708 | LHS = S.ImpCastExprToType(LHS.get(), S.Context.VoidTy, CK_ToVoid); |
6709 | RHS = S.ImpCastExprToType(RHS.get(), S.Context.VoidTy, CK_ToVoid); |
6710 | return S.Context.VoidTy; |
6711 | } |
6712 | |
6713 | |
6714 | |
6715 | static bool checkConditionalNullPointer(Sema &S, ExprResult &NullExpr, |
6716 | QualType PointerTy) { |
6717 | if ((!PointerTy->isAnyPointerType() && !PointerTy->isBlockPointerType()) || |
6718 | !NullExpr.get()->isNullPointerConstant(S.Context, |
6719 | Expr::NPC_ValueDependentIsNull)) |
6720 | return true; |
6721 | |
6722 | NullExpr = S.ImpCastExprToType(NullExpr.get(), PointerTy, CK_NullToPointer); |
6723 | return false; |
6724 | } |
6725 | |
6726 | |
6727 | |
6728 | static QualType checkConditionalPointerCompatibility(Sema &S, ExprResult &LHS, |
6729 | ExprResult &RHS, |
6730 | SourceLocation Loc) { |
6731 | QualType LHSTy = LHS.get()->getType(); |
6732 | QualType RHSTy = RHS.get()->getType(); |
6733 | |
6734 | if (S.Context.hasSameType(LHSTy, RHSTy)) { |
6735 | |
6736 | return LHSTy; |
6737 | } |
6738 | |
6739 | QualType lhptee, rhptee; |
6740 | |
6741 | |
6742 | bool IsBlockPointer = false; |
6743 | if (const BlockPointerType *LHSBTy = LHSTy->getAs<BlockPointerType>()) { |
6744 | lhptee = LHSBTy->getPointeeType(); |
6745 | rhptee = RHSTy->castAs<BlockPointerType>()->getPointeeType(); |
6746 | IsBlockPointer = true; |
6747 | } else { |
6748 | lhptee = LHSTy->castAs<PointerType>()->getPointeeType(); |
6749 | rhptee = RHSTy->castAs<PointerType>()->getPointeeType(); |
6750 | } |
6751 | |
6752 | |
6753 | |
6754 | |
6755 | |
6756 | |
6757 | |
6758 | |
6759 | |
6760 | |
6761 | Qualifiers lhQual = lhptee.getQualifiers(); |
6762 | Qualifiers rhQual = rhptee.getQualifiers(); |
6763 | |
6764 | LangAS ResultAddrSpace = LangAS::Default; |
6765 | LangAS LAddrSpace = lhQual.getAddressSpace(); |
6766 | LangAS RAddrSpace = rhQual.getAddressSpace(); |
6767 | |
6768 | |
6769 | |
6770 | if (lhQual.isAddressSpaceSupersetOf(rhQual)) |
6771 | ResultAddrSpace = LAddrSpace; |
6772 | else if (rhQual.isAddressSpaceSupersetOf(lhQual)) |
6773 | ResultAddrSpace = RAddrSpace; |
6774 | else { |
6775 | S.Diag(Loc, diag::err_typecheck_op_on_nonoverlapping_address_space_pointers) |
6776 | << LHSTy << RHSTy << 2 << LHS.get()->getSourceRange() |
6777 | << RHS.get()->getSourceRange(); |
6778 | return QualType(); |
6779 | } |
6780 | |
6781 | unsigned MergedCVRQual = lhQual.getCVRQualifiers() | rhQual.getCVRQualifiers(); |
6782 | auto LHSCastKind = CK_BitCast, RHSCastKind = CK_BitCast; |
6783 | lhQual.removeCVRQualifiers(); |
6784 | rhQual.removeCVRQualifiers(); |
6785 | |
6786 | |
6787 | |
6788 | |
6789 | |
6790 | |
6791 | |
6792 | |
6793 | |
6794 | |
6795 | |
6796 | LHSCastKind = |
6797 | LAddrSpace == ResultAddrSpace ? CK_BitCast : CK_AddressSpaceConversion; |
6798 | RHSCastKind = |
6799 | RAddrSpace == ResultAddrSpace ? CK_BitCast : CK_AddressSpaceConversion; |
6800 | lhQual.removeAddressSpace(); |
6801 | rhQual.removeAddressSpace(); |
6802 | |
6803 | lhptee = S.Context.getQualifiedType(lhptee.getUnqualifiedType(), lhQual); |
6804 | rhptee = S.Context.getQualifiedType(rhptee.getUnqualifiedType(), rhQual); |
6805 | |
6806 | QualType CompositeTy = S.Context.mergeTypes(lhptee, rhptee); |
6807 | |
6808 | if (CompositeTy.isNull()) { |
6809 | |
6810 | |
6811 | |
6812 | QualType incompatTy; |
6813 | incompatTy = S.Context.getPointerType( |
6814 | S.Context.getAddrSpaceQualType(S.Context.VoidTy, ResultAddrSpace)); |
6815 | LHS = S.ImpCastExprToType(LHS.get(), incompatTy, LHSCastKind); |
6816 | RHS = S.ImpCastExprToType(RHS.get(), incompatTy, RHSCastKind); |
6817 | |
6818 | |
6819 | |
6820 | |
6821 | |
6822 | |
6823 | |
6824 | |
6825 | S.Diag(Loc, diag::ext_typecheck_cond_incompatible_pointers) |
6826 | << LHSTy << RHSTy << LHS.get()->getSourceRange() |
6827 | << RHS.get()->getSourceRange(); |
6828 | |
6829 | return incompatTy; |
6830 | } |
6831 | |
6832 | |
6833 | |
6834 | |
6835 | |
6836 | QualType ResultTy = [&, ResultAddrSpace]() { |
6837 | if (S.getLangOpts().OpenCL) { |
6838 | Qualifiers CompositeQuals = CompositeTy.getQualifiers(); |
6839 | CompositeQuals.setAddressSpace(ResultAddrSpace); |
6840 | return S.Context |
6841 | .getQualifiedType(CompositeTy.getUnqualifiedType(), CompositeQuals) |
6842 | .withCVRQualifiers(MergedCVRQual); |
6843 | } |
6844 | return CompositeTy.withCVRQualifiers(MergedCVRQual); |
6845 | }(); |
6846 | if (IsBlockPointer) |
6847 | ResultTy = S.Context.getBlockPointerType(ResultTy); |
6848 | else |
6849 | ResultTy = S.Context.getPointerType(ResultTy); |
6850 | |
6851 | LHS = S.ImpCastExprToType(LHS.get(), ResultTy, LHSCastKind); |
6852 | RHS = S.ImpCastExprToType(RHS.get(), ResultTy, RHSCastKind); |
6853 | return ResultTy; |
6854 | } |
6855 | |
6856 | |
6857 | static QualType checkConditionalBlockPointerCompatibility(Sema &S, |
6858 | ExprResult &LHS, |
6859 | ExprResult &RHS, |
6860 | SourceLocation Loc) { |
6861 | QualType LHSTy = LHS.get()->getType(); |
6862 | QualType RHSTy = RHS.get()->getType(); |
6863 | |
6864 | if (!LHSTy->isBlockPointerType() || !RHSTy->isBlockPointerType()) { |
6865 | if (LHSTy->isVoidPointerType() || RHSTy->isVoidPointerType()) { |
6866 | QualType destType = S.Context.getPointerType(S.Context.VoidTy); |
6867 | LHS = S.ImpCastExprToType(LHS.get(), destType, CK_BitCast); |
6868 | RHS = S.ImpCastExprToType(RHS.get(), destType, CK_BitCast); |
6869 | return destType; |
6870 | } |
6871 | S.Diag(Loc, diag::err_typecheck_cond_incompatible_operands) |
6872 | << LHSTy << RHSTy << LHS.get()->getSourceRange() |
6873 | << RHS.get()->getSourceRange(); |
6874 | return QualType(); |
6875 | } |
6876 | |
6877 | |
6878 | return checkConditionalPointerCompatibility(S, LHS, RHS, Loc); |
6879 | } |
6880 | |
6881 | |
6882 | static QualType |
6883 | checkConditionalObjectPointersCompatibility(Sema &S, ExprResult &LHS, |
6884 | ExprResult &RHS, |
6885 | SourceLocation Loc) { |
6886 | |
6887 | QualType LHSTy = LHS.get()->getType(); |
6888 | QualType RHSTy = RHS.get()->getType(); |
6889 | |
6890 | |
6891 | QualType lhptee = LHSTy->getAs<PointerType>()->getPointeeType(); |
6892 | QualType rhptee = RHSTy->getAs<PointerType>()->getPointeeType(); |
6893 | |
6894 | |
6895 | if (lhptee->isVoidType() && rhptee->isIncompleteOrObjectType()) { |
6896 | |
6897 | QualType destPointee |
6898 | = S.Context.getQualifiedType(lhptee, rhptee.getQualifiers()); |
6899 | QualType destType = S.Context.getPointerType(destPointee); |
6900 | |
6901 | LHS = S.ImpCastExprToType(LHS.get(), destType, CK_NoOp); |
6902 | |
6903 | RHS = S.ImpCastExprToType(RHS.get(), destType, CK_BitCast); |
6904 | return destType; |
6905 | } |
6906 | if (rhptee->isVoidType() && lhptee->isIncompleteOrObjectType()) { |
6907 | QualType destPointee |
6908 | = S.Context.getQualifiedType(rhptee, lhptee.getQualifiers()); |
6909 | QualType destType = S.Context.getPointerType(destPointee); |
6910 | |
6911 | RHS = S.ImpCastExprToType(RHS.get(), destType, CK_NoOp); |
6912 | |
6913 | LHS = S.ImpCastExprToType(LHS.get(), destType, CK_BitCast); |
6914 | return destType; |
6915 | } |
6916 | |
6917 | return checkConditionalPointerCompatibility(S, LHS, RHS, Loc); |
6918 | } |
6919 | |
6920 | |
6921 | |
6922 | static bool checkPointerIntegerMismatch(Sema &S, ExprResult &Int, |
6923 | Expr* PointerExpr, SourceLocation Loc, |
6924 | bool IsIntFirstExpr) { |
6925 | if (!PointerExpr->getType()->isPointerType() || |
6926 | !Int.get()->getType()->isIntegerType()) |
6927 | return false; |
6928 | |
6929 | Expr *Expr1 = IsIntFirstExpr ? Int.get() : PointerExpr; |
6930 | Expr *Expr2 = IsIntFirstExpr ? PointerExpr : Int.get(); |
6931 | |
6932 | S.Diag(Loc, diag::ext_typecheck_cond_pointer_integer_mismatch) |
6933 | << Expr1->getType() << Expr2->getType() |
6934 | << Expr1->getSourceRange() << Expr2->getSourceRange(); |
6935 | Int = S.ImpCastExprToType(Int.get(), PointerExpr->getType(), |
6936 | CK_IntegralToPointer); |
6937 | return true; |
6938 | } |
6939 | |
6940 | |
6941 | |
6942 | |
6943 | |
6944 | |
6945 | |
6946 | |
6947 | |
6948 | |
6949 | |
6950 | |
6951 | |
6952 | static QualType OpenCLArithmeticConversions(Sema &S, ExprResult &LHS, |
6953 | ExprResult &RHS, |
6954 | SourceLocation QuestionLoc) { |
6955 | LHS = S.DefaultFunctionArrayLvalueConversion(LHS.get()); |
6956 | if (LHS.isInvalid()) |
6957 | return QualType(); |
6958 | RHS = S.DefaultFunctionArrayLvalueConversion(RHS.get()); |
6959 | if (RHS.isInvalid()) |
6960 | return QualType(); |
6961 | |
6962 | |
6963 | |
6964 | QualType LHSType = |
6965 | S.Context.getCanonicalType(LHS.get()->getType()).getUnqualifiedType(); |
6966 | QualType RHSType = |
6967 | S.Context.getCanonicalType(RHS.get()->getType()).getUnqualifiedType(); |
6968 | |
6969 | if (!LHSType->isIntegerType() && !LHSType->isRealFloatingType()) { |
6970 | S.Diag(QuestionLoc, diag::err_typecheck_cond_expect_int_float) |
6971 | << LHSType << LHS.get()->getSourceRange(); |
6972 | return QualType(); |
6973 | } |
6974 | |
6975 | if (!RHSType->isIntegerType() && !RHSType->isRealFloatingType()) { |
6976 | S.Diag(QuestionLoc, diag::err_typecheck_cond_expect_int_float) |
6977 | << RHSType << RHS.get()->getSourceRange(); |
6978 | return QualType(); |
6979 | } |
6980 | |
6981 | |
6982 | if (LHSType == RHSType) |
6983 | return LHSType; |
6984 | |
6985 | |
6986 | if (LHSType->isRealFloatingType() || RHSType->isRealFloatingType()) |
6987 | return handleFloatConversion(S, LHS, RHS, LHSType, RHSType, |
6988 | false); |
6989 | |
6990 | |
6991 | return handleIntegerConversion<doIntegralCast, doIntegralCast> |
6992 | (S, LHS, RHS, LHSType, RHSType, false); |
6993 | } |
6994 | |
6995 | |
6996 | |
6997 | |
6998 | |
6999 | |
7000 | |
7001 | |
7002 | |
7003 | |
7004 | |
7005 | |
7006 | static QualType |
7007 | OpenCLConvertScalarsToVectors(Sema &S, ExprResult &LHS, ExprResult &RHS, |
7008 | QualType CondTy, SourceLocation QuestionLoc) { |
7009 | QualType ResTy = OpenCLArithmeticConversions(S, LHS, RHS, QuestionLoc); |
7010 | if (ResTy.isNull()) return QualType(); |
7011 | |
7012 | const VectorType *CV = CondTy->getAs<VectorType>(); |
7013 | assert(CV); |
7014 | |
7015 | |
7016 | unsigned NumElements = CV->getNumElements(); |
7017 | QualType VectorTy = S.Context.getExtVectorType(ResTy, NumElements); |
7018 | |
7019 | |
7020 | if (S.Context.getTypeSize(CV->getElementType()) |
7021 | != S.Context.getTypeSize(ResTy)) { |
7022 | |
7023 | |
7024 | std::string EleTyName = ResTy.getUnqualifiedType().getAsString(); |
7025 | SmallString<64> Str; |
7026 | llvm::raw_svector_ostream OS(Str); |
7027 | OS << "(vector of " << NumElements << " '" << EleTyName << "' values)"; |
7028 | S.Diag(QuestionLoc, diag::err_conditional_vector_element_size) |
7029 | << CondTy << OS.str(); |
7030 | return QualType(); |
7031 | } |
7032 | |
7033 | |
7034 | LHS = S.ImpCastExprToType(LHS.get(), VectorTy, CK_VectorSplat); |
7035 | RHS = S.ImpCastExprToType(RHS.get(), VectorTy, CK_VectorSplat); |
7036 | |
7037 | return VectorTy; |
7038 | } |
7039 | |
7040 | |
7041 | static bool checkOpenCLConditionVector(Sema &S, Expr *Cond, |
7042 | SourceLocation QuestionLoc) { |
7043 | |
7044 | |
7045 | const VectorType *CondTy = Cond->getType()->getAs<VectorType>(); |
7046 | assert(CondTy); |
7047 | QualType EleTy = CondTy->getElementType(); |
7048 | if (EleTy->isIntegerType()) return false; |
7049 | |
7050 | S.Diag(QuestionLoc, diag::err_typecheck_cond_expect_nonfloat) |
7051 | << Cond->getType() << Cond->getSourceRange(); |
7052 | return true; |
7053 | } |
7054 | |
7055 | |
7056 | |
7057 | |
7058 | |
7059 | |
7060 | |
7061 | static bool checkVectorResult(Sema &S, QualType CondTy, QualType VecResTy, |
7062 | SourceLocation QuestionLoc) { |
7063 | const VectorType *CV = CondTy->getAs<VectorType>(); |
7064 | const VectorType *RV = VecResTy->getAs<VectorType>(); |
7065 | assert(CV && RV); |
7066 | |
7067 | if (CV->getNumElements() != RV->getNumElements()) { |
7068 | S.Diag(QuestionLoc, diag::err_conditional_vector_size) |
7069 | << CondTy << VecResTy; |
7070 | return true; |
7071 | } |
7072 | |
7073 | QualType CVE = CV->getElementType(); |
7074 | QualType RVE = RV->getElementType(); |
7075 | |
7076 | if (S.Context.getTypeSize(CVE) != S.Context.getTypeSize(RVE)) { |
7077 | S.Diag(QuestionLoc, diag::err_conditional_vector_element_size) |
7078 | << CondTy << VecResTy; |
7079 | return true; |
7080 | } |
7081 | |
7082 | return false; |
7083 | } |
7084 | |
7085 | |
7086 | |
7087 | |
7088 | static QualType |
7089 | OpenCLCheckVectorConditional(Sema &S, ExprResult &Cond, |
7090 | ExprResult &LHS, ExprResult &RHS, |
7091 | SourceLocation QuestionLoc) { |
7092 | Cond = S.DefaultFunctionArrayLvalueConversion(Cond.get()); |
7093 | if (Cond.isInvalid()) |
7094 | return QualType(); |
7095 | QualType CondTy = Cond.get()->getType(); |
7096 | |
7097 | if (checkOpenCLConditionVector(S, Cond.get(), QuestionLoc)) |
7098 | return QualType(); |
7099 | |
7100 | |
7101 | |
7102 | if (LHS.get()->getType()->isVectorType() || |
7103 | RHS.get()->getType()->isVectorType()) { |
7104 | QualType VecResTy = S.CheckVectorOperands(LHS, RHS, QuestionLoc, |
7105 | , |
7106 | , |
7107 | ); |
7108 | if (VecResTy.isNull()) return QualType(); |
7109 | |
7110 | |
7111 | if (checkVectorResult(S, CondTy, VecResTy, QuestionLoc)) |
7112 | return QualType(); |
7113 | return VecResTy; |
7114 | } |
7115 | |
7116 | |
7117 | return OpenCLConvertScalarsToVectors(S, LHS, RHS, CondTy, QuestionLoc); |
7118 | } |
7119 | |
7120 | |
7121 | static bool checkBlockType(Sema &S, const Expr *E) { |
7122 | if (const CallExpr *CE = dyn_cast<CallExpr>(E)) { |
7123 | QualType Ty = CE->getCallee()->getType(); |
7124 | if (Ty->isBlockPointerType()) { |
7125 | S.Diag(E->getExprLoc(), diag::err_opencl_ternary_with_block); |
7126 | return true; |
7127 | } |
7128 | } |
7129 | return false; |
7130 | } |
7131 | |
7132 | |
7133 | |
7134 | |
7135 | QualType Sema::CheckConditionalOperands(ExprResult &Cond, ExprResult &LHS, |
7136 | ExprResult &RHS, ExprValueKind &VK, |
7137 | ExprObjectKind &OK, |
7138 | SourceLocation QuestionLoc) { |
7139 | |
7140 | ExprResult LHSResult = CheckPlaceholderExpr(LHS.get()); |
7141 | if (!LHSResult.isUsable()) return QualType(); |
7142 | LHS = LHSResult; |
7143 | |
7144 | ExprResult RHSResult = CheckPlaceholderExpr(RHS.get()); |
7145 | if (!RHSResult.isUsable()) return QualType(); |
7146 | RHS = RHSResult; |
7147 | |
7148 | |
7149 | if (getLangOpts().CPlusPlus) |
7150 | return CXXCheckConditionalOperands(Cond, LHS, RHS, VK, OK, QuestionLoc); |
7151 | |
7152 | VK = VK_RValue; |
7153 | OK = OK_Ordinary; |
7154 | |
7155 | |
7156 | |
7157 | if (getLangOpts().OpenCL && Cond.get()->getType()->isVectorType()) |
7158 | return OpenCLCheckVectorConditional(*this, Cond, LHS, RHS, QuestionLoc); |
7159 | |
7160 | |
7161 | Cond = UsualUnaryConversions(Cond.get()); |
7162 | if (Cond.isInvalid()) |
7163 | return QualType(); |
7164 | if (checkCondition(*this, Cond.get(), QuestionLoc)) |
7165 | return QualType(); |
7166 | |
7167 | |
7168 | if (LHS.get()->getType()->isVectorType() || |
7169 | RHS.get()->getType()->isVectorType()) |
7170 | return CheckVectorOperands(LHS, RHS, QuestionLoc, , |
7171 | , |
7172 | ); |
7173 | |
7174 | QualType ResTy = UsualArithmeticConversions(LHS, RHS); |
7175 | if (LHS.isInvalid() || RHS.isInvalid()) |
7176 | return QualType(); |
7177 | |
7178 | QualType LHSTy = LHS.get()->getType(); |
7179 | QualType RHSTy = RHS.get()->getType(); |
7180 | |
7181 | |
7182 | |
7183 | if (unsupportedTypeConversion(*this, LHSTy, RHSTy)) { |
7184 | Diag(QuestionLoc, |
7185 | diag::err_typecheck_cond_incompatible_operands) << LHSTy << RHSTy |
7186 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
7187 | return QualType(); |
7188 | } |
7189 | |
7190 | |
7191 | |
7192 | if (getLangOpts().OpenCL && |
7193 | (checkBlockType(*this, LHS.get()) | checkBlockType(*this, RHS.get()))) { |
7194 | return QualType(); |
7195 | } |
7196 | |
7197 | |
7198 | |
7199 | if (LHSTy->isArithmeticType() && RHSTy->isArithmeticType()) { |
7200 | LHS = ImpCastExprToType(LHS.get(), ResTy, PrepareScalarCast(LHS, ResTy)); |
7201 | RHS = ImpCastExprToType(RHS.get(), ResTy, PrepareScalarCast(RHS, ResTy)); |
7202 | |
7203 | return ResTy; |
7204 | } |
7205 | |
7206 | |
7207 | |
7208 | if (const RecordType *LHSRT = LHSTy->getAs<RecordType>()) { |
7209 | if (const RecordType *RHSRT = RHSTy->getAs<RecordType>()) |
7210 | if (LHSRT->getDecl() == RHSRT->getDecl()) |
7211 | |
7212 | |
7213 | return LHSTy.getUnqualifiedType(); |
7214 | |
7215 | } |
7216 | |
7217 | |
7218 | |
7219 | if (LHSTy->isVoidType() || RHSTy->isVoidType()) { |
7220 | return checkConditionalVoidType(*this, LHS, RHS); |
7221 | } |
7222 | |
7223 | |
7224 | |
7225 | if (!checkConditionalNullPointer(*this, RHS, LHSTy)) return LHSTy; |
7226 | if (!checkConditionalNullPointer(*this, LHS, RHSTy)) return RHSTy; |
7227 | |
7228 | |
7229 | QualType compositeType = FindCompositeObjCPointerType(LHS, RHS, |
7230 | QuestionLoc); |
7231 | if (LHS.isInvalid() || RHS.isInvalid()) |
7232 | return QualType(); |
7233 | if (!compositeType.isNull()) |
7234 | return compositeType; |
7235 | |
7236 | |
7237 | |
7238 | if (LHSTy->isBlockPointerType() || RHSTy->isBlockPointerType()) |
7239 | return checkConditionalBlockPointerCompatibility(*this, LHS, RHS, |
7240 | QuestionLoc); |
7241 | |
7242 | |
7243 | if (LHSTy->isPointerType() && RHSTy->isPointerType()) |
7244 | return checkConditionalObjectPointersCompatibility(*this, LHS, RHS, |
7245 | QuestionLoc); |
7246 | |
7247 | |
7248 | |
7249 | if (checkPointerIntegerMismatch(*this, LHS, RHS.get(), QuestionLoc, |
7250 | )) |
7251 | return RHSTy; |
7252 | if (checkPointerIntegerMismatch(*this, RHS, LHS.get(), QuestionLoc, |
7253 | )) |
7254 | return LHSTy; |
7255 | |
7256 | |
7257 | |
7258 | |
7259 | if (DiagnoseConditionalForNull(LHS.get(), RHS.get(), QuestionLoc)) |
7260 | return QualType(); |
7261 | |
7262 | |
7263 | Diag(QuestionLoc, diag::err_typecheck_cond_incompatible_operands) |
7264 | << LHSTy << RHSTy << LHS.get()->getSourceRange() |
7265 | << RHS.get()->getSourceRange(); |
7266 | return QualType(); |
7267 | } |
7268 | |
7269 | |
7270 | |
7271 | QualType Sema::FindCompositeObjCPointerType(ExprResult &LHS, ExprResult &RHS, |
7272 | SourceLocation QuestionLoc) { |
7273 | QualType LHSTy = LHS.get()->getType(); |
7274 | QualType RHSTy = RHS.get()->getType(); |
7275 | |
7276 | |
7277 | |
7278 | |
7279 | if (LHSTy->isObjCClassType() && |
7280 | (Context.hasSameType(RHSTy, Context.getObjCClassRedefinitionType()))) { |
7281 | RHS = ImpCastExprToType(RHS.get(), LHSTy, CK_CPointerToObjCPointerCast); |
7282 | return LHSTy; |
7283 | } |
7284 | if (RHSTy->isObjCClassType() && |
7285 | (Context.hasSameType(LHSTy, Context.getObjCClassRedefinitionType()))) { |
7286 | LHS = ImpCastExprToType(LHS.get(), RHSTy, CK_CPointerToObjCPointerCast); |
7287 | return RHSTy; |
7288 | } |
7289 | |
7290 | if (LHSTy->isObjCIdType() && |
7291 | (Context.hasSameType(RHSTy, Context.getObjCIdRedefinitionType()))) { |
7292 | RHS = ImpCastExprToType(RHS.get(), LHSTy, CK_CPointerToObjCPointerCast); |
7293 | return LHSTy; |
7294 | } |
7295 | if (RHSTy->isObjCIdType() && |
7296 | (Context.hasSameType(LHSTy, Context.getObjCIdRedefinitionType()))) { |
7297 | LHS = ImpCastExprToType(LHS.get(), RHSTy, CK_CPointerToObjCPointerCast); |
7298 | return RHSTy; |
7299 | } |
7300 | |
7301 | if (Context.isObjCSelType(LHSTy) && |
7302 | (Context.hasSameType(RHSTy, Context.getObjCSelRedefinitionType()))) { |
7303 | RHS = ImpCastExprToType(RHS.get(), LHSTy, CK_BitCast); |
7304 | return LHSTy; |
7305 | } |
7306 | if (Context.isObjCSelType(RHSTy) && |
7307 | (Context.hasSameType(LHSTy, Context.getObjCSelRedefinitionType()))) { |
7308 | LHS = ImpCastExprToType(LHS.get(), RHSTy, CK_BitCast); |
7309 | return RHSTy; |
7310 | } |
7311 | |
7312 | if (LHSTy->isObjCObjectPointerType() && RHSTy->isObjCObjectPointerType()) { |
7313 | |
7314 | if (Context.getCanonicalType(LHSTy) == Context.getCanonicalType(RHSTy)) { |
7315 | |
7316 | return LHSTy; |
7317 | } |
7318 | const ObjCObjectPointerType *LHSOPT = LHSTy->castAs<ObjCObjectPointerType>(); |
7319 | const ObjCObjectPointerType *RHSOPT = RHSTy->castAs<ObjCObjectPointerType>(); |
7320 | QualType compositeType = LHSTy; |
7321 | |
7322 | |
7323 | |
7324 | |
7325 | |
7326 | |
7327 | |
7328 | |
7329 | |
7330 | |
7331 | |
7332 | |
7333 | |
7334 | |
7335 | if (!(compositeType = |
7336 | Context.areCommonBaseCompatible(LHSOPT, RHSOPT)).isNull()) { |
7337 | |
7338 | } else if (Context.canAssignObjCInterfaces(LHSOPT, RHSOPT)) { |
7339 | compositeType = RHSOPT->isObjCBuiltinType() ? RHSTy : LHSTy; |
7340 | } else if (Context.canAssignObjCInterfaces(RHSOPT, LHSOPT)) { |
7341 | compositeType = LHSOPT->isObjCBuiltinType() ? LHSTy : RHSTy; |
7342 | } else if ((LHSTy->isObjCQualifiedIdType() || |
7343 | RHSTy->isObjCQualifiedIdType()) && |
7344 | Context.ObjCQualifiedIdTypesAreCompatible(LHSTy, RHSTy, true)) { |
7345 | |
7346 | |
7347 | |
7348 | |
7349 | compositeType = Context.getObjCIdType(); |
7350 | } else if (LHSTy->isObjCIdType() || RHSTy->isObjCIdType()) { |
7351 | compositeType = Context.getObjCIdType(); |
7352 | } else { |
7353 | Diag(QuestionLoc, diag::ext_typecheck_cond_incompatible_operands) |
7354 | << LHSTy << RHSTy |
7355 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
7356 | QualType incompatTy = Context.getObjCIdType(); |
7357 | LHS = ImpCastExprToType(LHS.get(), incompatTy, CK_BitCast); |
7358 | RHS = ImpCastExprToType(RHS.get(), incompatTy, CK_BitCast); |
7359 | return incompatTy; |
7360 | } |
7361 | |
7362 | LHS = ImpCastExprToType(LHS.get(), compositeType, CK_BitCast); |
7363 | RHS = ImpCastExprToType(RHS.get(), compositeType, CK_BitCast); |
7364 | return compositeType; |
7365 | } |
7366 | |
7367 | if (LHSTy->isVoidPointerType() && RHSTy->isObjCObjectPointerType()) { |
7368 | if (getLangOpts().ObjCAutoRefCount) { |
7369 | |
7370 | |
7371 | Diag(QuestionLoc, diag::err_cond_voidptr_arc) << LHSTy << RHSTy |
7372 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
7373 | LHS = RHS = true; |
7374 | return QualType(); |
7375 | } |
7376 | QualType lhptee = LHSTy->getAs<PointerType>()->getPointeeType(); |
7377 | QualType rhptee = RHSTy->getAs<ObjCObjectPointerType>()->getPointeeType(); |
7378 | QualType destPointee |
7379 | = Context.getQualifiedType(lhptee, rhptee.getQualifiers()); |
7380 | QualType destType = Context.getPointerType(destPointee); |
7381 | |
7382 | LHS = ImpCastExprToType(LHS.get(), destType, CK_NoOp); |
7383 | |
7384 | RHS = ImpCastExprToType(RHS.get(), destType, CK_BitCast); |
7385 | return destType; |
7386 | } |
7387 | if (LHSTy->isObjCObjectPointerType() && RHSTy->isVoidPointerType()) { |
7388 | if (getLangOpts().ObjCAutoRefCount) { |
7389 | |
7390 | |
7391 | Diag(QuestionLoc, diag::err_cond_voidptr_arc) << LHSTy << RHSTy |
7392 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
7393 | LHS = RHS = true; |
7394 | return QualType(); |
7395 | } |
7396 | QualType lhptee = LHSTy->getAs<ObjCObjectPointerType>()->getPointeeType(); |
7397 | QualType rhptee = RHSTy->getAs<PointerType>()->getPointeeType(); |
7398 | QualType destPointee |
7399 | = Context.getQualifiedType(rhptee, lhptee.getQualifiers()); |
7400 | QualType destType = Context.getPointerType(destPointee); |
7401 | |
7402 | RHS = ImpCastExprToType(RHS.get(), destType, CK_NoOp); |
7403 | |
7404 | LHS = ImpCastExprToType(LHS.get(), destType, CK_BitCast); |
7405 | return destType; |
7406 | } |
7407 | return QualType(); |
7408 | } |
7409 | |
7410 | |
7411 | |
7412 | static void SuggestParentheses(Sema &Self, SourceLocation Loc, |
7413 | const PartialDiagnostic &Note, |
7414 | SourceRange ParenRange) { |
7415 | SourceLocation EndLoc = Self.getLocForEndOfToken(ParenRange.getEnd()); |
7416 | if (ParenRange.getBegin().isFileID() && ParenRange.getEnd().isFileID() && |
7417 | EndLoc.isValid()) { |
7418 | Self.Diag(Loc, Note) |
7419 | << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") |
7420 | << FixItHint::CreateInsertion(EndLoc, ")"); |
7421 | } else { |
7422 | |
7423 | Self.Diag(Loc, Note) << ParenRange; |
7424 | } |
7425 | } |
7426 | |
7427 | static bool IsArithmeticOp(BinaryOperatorKind Opc) { |
7428 | return BinaryOperator::isAdditiveOp(Opc) || |
7429 | BinaryOperator::isMultiplicativeOp(Opc) || |
7430 | BinaryOperator::isShiftOp(Opc); |
7431 | } |
7432 | |
7433 | |
7434 | |
7435 | |
7436 | |
7437 | static bool IsArithmeticBinaryExpr(Expr *E, BinaryOperatorKind *Opcode, |
7438 | Expr **RHSExprs) { |
7439 | |
7440 | E = E->IgnoreImpCasts(); |
7441 | E = E->IgnoreConversionOperator(); |
7442 | E = E->IgnoreImpCasts(); |
7443 | if (auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E)) { |
7444 | E = MTE->GetTemporaryExpr(); |
7445 | E = E->IgnoreImpCasts(); |
7446 | } |
7447 | |
7448 | |
7449 | if (BinaryOperator *OP = dyn_cast<BinaryOperator>(E)) { |
7450 | if (IsArithmeticOp(OP->getOpcode())) { |
7451 | *Opcode = OP->getOpcode(); |
7452 | *RHSExprs = OP->getRHS(); |
7453 | return true; |
7454 | } |
7455 | } |
7456 | |
7457 | |
7458 | if (CXXOperatorCallExpr *Call = dyn_cast<CXXOperatorCallExpr>(E)) { |
7459 | if (Call->getNumArgs() != 2) |
7460 | return false; |
7461 | |
7462 | |
7463 | |
7464 | OverloadedOperatorKind OO = Call->getOperator(); |
7465 | if (OO < OO_Plus || OO > OO_Arrow || |
7466 | OO == OO_PlusPlus || OO == OO_MinusMinus) |
7467 | return false; |
7468 | |
7469 | BinaryOperatorKind OpKind = BinaryOperator::getOverloadedOpcode(OO); |
7470 | if (IsArithmeticOp(OpKind)) { |
7471 | *Opcode = OpKind; |
7472 | *RHSExprs = Call->getArg(1); |
7473 | return true; |
7474 | } |
7475 | } |
7476 | |
7477 | return false; |
7478 | } |
7479 | |
7480 | |
7481 | |
7482 | |
7483 | static bool ExprLooksBoolean(Expr *E) { |
7484 | E = E->IgnoreParenImpCasts(); |
7485 | |
7486 | if (E->getType()->isBooleanType()) |
7487 | return true; |
7488 | if (BinaryOperator *OP = dyn_cast<BinaryOperator>(E)) |
7489 | return OP->isComparisonOp() || OP->isLogicalOp(); |
7490 | if (UnaryOperator *OP = dyn_cast<UnaryOperator>(E)) |
7491 | return OP->getOpcode() == UO_LNot; |
7492 | if (E->getType()->isPointerType()) |
7493 | return true; |
7494 | |
7495 | |
7496 | |
7497 | return false; |
7498 | } |
7499 | |
7500 | |
7501 | |
7502 | |
7503 | |
7504 | static void DiagnoseConditionalPrecedence(Sema &Self, |
7505 | SourceLocation OpLoc, |
7506 | Expr *Condition, |
7507 | Expr *LHSExpr, |
7508 | Expr *RHSExpr) { |
7509 | BinaryOperatorKind CondOpcode; |
7510 | Expr *CondRHS; |
7511 | |
7512 | if (!IsArithmeticBinaryExpr(Condition, &CondOpcode, &CondRHS)) |
7513 | return; |
7514 | if (!ExprLooksBoolean(CondRHS)) |
7515 | return; |
7516 | |
7517 | |
7518 | |
7519 | |
7520 | Self.Diag(OpLoc, diag::warn_precedence_conditional) |
7521 | << Condition->getSourceRange() |
7522 | << BinaryOperator::getOpcodeStr(CondOpcode); |
7523 | |
7524 | SuggestParentheses( |
7525 | Self, OpLoc, |
7526 | Self.PDiag(diag::note_precedence_silence) |
7527 | << BinaryOperator::getOpcodeStr(CondOpcode), |
7528 | SourceRange(Condition->getBeginLoc(), Condition->getEndLoc())); |
7529 | |
7530 | SuggestParentheses(Self, OpLoc, |
7531 | Self.PDiag(diag::note_precedence_conditional_first), |
7532 | SourceRange(CondRHS->getBeginLoc(), RHSExpr->getEndLoc())); |
7533 | } |
7534 | |
7535 | |
7536 | static QualType computeConditionalNullability(QualType ResTy, bool IsBin, |
7537 | QualType LHSTy, QualType RHSTy, |
7538 | ASTContext &Ctx) { |
7539 | if (!ResTy->isAnyPointerType()) |
7540 | return ResTy; |
7541 | |
7542 | auto GetNullability = [&Ctx](QualType Ty) { |
7543 | Optional<NullabilityKind> Kind = Ty->getNullability(Ctx); |
7544 | if (Kind) |
7545 | return *Kind; |
7546 | return NullabilityKind::Unspecified; |
7547 | }; |
7548 | |
7549 | auto LHSKind = GetNullability(LHSTy), RHSKind = GetNullability(RHSTy); |
7550 | NullabilityKind MergedKind; |
7551 | |
7552 | |
7553 | if (IsBin) { |
7554 | if (LHSKind == NullabilityKind::NonNull) |
7555 | MergedKind = NullabilityKind::NonNull; |
7556 | else |
7557 | MergedKind = RHSKind; |
7558 | |
7559 | } else { |
7560 | if (LHSKind == NullabilityKind::Nullable || |
7561 | RHSKind == NullabilityKind::Nullable) |
7562 | MergedKind = NullabilityKind::Nullable; |
7563 | else if (LHSKind == NullabilityKind::NonNull) |
7564 | MergedKind = RHSKind; |
7565 | else if (RHSKind == NullabilityKind::NonNull) |
7566 | MergedKind = LHSKind; |
7567 | else |
7568 | MergedKind = NullabilityKind::Unspecified; |
7569 | } |
7570 | |
7571 | |
7572 | if (GetNullability(ResTy) == MergedKind) |
7573 | return ResTy; |
7574 | |
7575 | |
7576 | while (ResTy->getNullability(Ctx)) |
7577 | ResTy = ResTy.getSingleStepDesugaredType(Ctx); |
7578 | |
7579 | |
7580 | auto NewAttr = AttributedType::getNullabilityAttrKind(MergedKind); |
7581 | return Ctx.getAttributedType(NewAttr, ResTy, ResTy); |
7582 | } |
7583 | |
7584 | |
7585 | |
7586 | ExprResult Sema::ActOnConditionalOp(SourceLocation QuestionLoc, |
7587 | SourceLocation ColonLoc, |
7588 | Expr *CondExpr, Expr *LHSExpr, |
7589 | Expr *RHSExpr) { |
7590 | if (!getLangOpts().CPlusPlus) { |
7591 | |
7592 | |
7593 | |
7594 | ExprResult CondResult = CorrectDelayedTyposInExpr(CondExpr); |
7595 | ExprResult LHSResult = CorrectDelayedTyposInExpr(LHSExpr); |
7596 | ExprResult RHSResult = CorrectDelayedTyposInExpr(RHSExpr); |
7597 | |
7598 | if (!CondResult.isUsable()) |
7599 | return ExprError(); |
7600 | |
7601 | if (LHSExpr) { |
7602 | if (!LHSResult.isUsable()) |
7603 | return ExprError(); |
7604 | } |
7605 | |
7606 | if (!RHSResult.isUsable()) |
7607 | return ExprError(); |
7608 | |
7609 | CondExpr = CondResult.get(); |
7610 | LHSExpr = LHSResult.get(); |
7611 | RHSExpr = RHSResult.get(); |
7612 | } |
7613 | |
7614 | |
7615 | |
7616 | OpaqueValueExpr *opaqueValue = nullptr; |
7617 | Expr *commonExpr = nullptr; |
7618 | if (!LHSExpr) { |
7619 | commonExpr = CondExpr; |
7620 | |
7621 | |
7622 | |
7623 | if (commonExpr->hasPlaceholderType()) { |
7624 | ExprResult result = CheckPlaceholderExpr(commonExpr); |
7625 | if (!result.isUsable()) return ExprError(); |
7626 | commonExpr = result.get(); |
7627 | } |
7628 | |
7629 | |
7630 | if (!(getLangOpts().CPlusPlus |
7631 | && !commonExpr->isTypeDependent() |
7632 | && commonExpr->getValueKind() == RHSExpr->getValueKind() |
7633 | && commonExpr->isGLValue() |
7634 | && commonExpr->isOrdinaryOrBitFieldObject() |
7635 | && RHSExpr->isOrdinaryOrBitFieldObject() |
7636 | && Context.hasSameType(commonExpr->getType(), RHSExpr->getType()))) { |
7637 | ExprResult commonRes = UsualUnaryConversions(commonExpr); |
7638 | if (commonRes.isInvalid()) |
7639 | return ExprError(); |
7640 | commonExpr = commonRes.get(); |
7641 | } |
7642 | |
7643 | |
7644 | |
7645 | if (commonExpr->isRValue() && (commonExpr->getType()->isRecordType() || |
7646 | commonExpr->getType()->isArrayType())) { |
7647 | ExprResult MatExpr = TemporaryMaterializationConversion(commonExpr); |
7648 | if (MatExpr.isInvalid()) |
7649 | return ExprError(); |
7650 | commonExpr = MatExpr.get(); |
7651 | } |
7652 | |
7653 | opaqueValue = new (Context) OpaqueValueExpr(commonExpr->getExprLoc(), |
7654 | commonExpr->getType(), |
7655 | commonExpr->getValueKind(), |
7656 | commonExpr->getObjectKind(), |
7657 | commonExpr); |
7658 | LHSExpr = CondExpr = opaqueValue; |
7659 | } |
7660 | |
7661 | QualType LHSTy = LHSExpr->getType(), RHSTy = RHSExpr->getType(); |
7662 | ExprValueKind VK = VK_RValue; |
7663 | ExprObjectKind OK = OK_Ordinary; |
7664 | ExprResult Cond = CondExpr, LHS = LHSExpr, RHS = RHSExpr; |
7665 | QualType result = CheckConditionalOperands(Cond, LHS, RHS, |
7666 | VK, OK, QuestionLoc); |
7667 | if (result.isNull() || Cond.isInvalid() || LHS.isInvalid() || |
7668 | RHS.isInvalid()) |
7669 | return ExprError(); |
7670 | |
7671 | DiagnoseConditionalPrecedence(*this, QuestionLoc, Cond.get(), LHS.get(), |
7672 | RHS.get()); |
7673 | |
7674 | CheckBoolLikeConversion(Cond.get(), QuestionLoc); |
7675 | |
7676 | result = computeConditionalNullability(result, commonExpr, LHSTy, RHSTy, |
7677 | Context); |
7678 | |
7679 | if (!commonExpr) |
7680 | return new (Context) |
7681 | ConditionalOperator(Cond.get(), QuestionLoc, LHS.get(), ColonLoc, |
7682 | RHS.get(), result, VK, OK); |
7683 | |
7684 | return new (Context) BinaryConditionalOperator( |
7685 | commonExpr, opaqueValue, Cond.get(), LHS.get(), RHS.get(), QuestionLoc, |
7686 | ColonLoc, result, VK, OK); |
7687 | } |
7688 | |
7689 | |
7690 | |
7691 | |
7692 | |
7693 | |
7694 | static Sema::AssignConvertType |
7695 | checkPointerTypesForAssignment(Sema &S, QualType LHSType, QualType RHSType) { |
7696 | (0) . __assert_fail ("LHSType.isCanonical() && \"LHS not canonicalized!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7696, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSType.isCanonical() && "LHS not canonicalized!"); |
7697 | (0) . __assert_fail ("RHSType.isCanonical() && \"RHS not canonicalized!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7697, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHSType.isCanonical() && "RHS not canonicalized!"); |
7698 | |
7699 | |
7700 | const Type *lhptee, *rhptee; |
7701 | Qualifiers lhq, rhq; |
7702 | std::tie(lhptee, lhq) = |
7703 | cast<PointerType>(LHSType)->getPointeeType().split().asPair(); |
7704 | std::tie(rhptee, rhq) = |
7705 | cast<PointerType>(RHSType)->getPointeeType().split().asPair(); |
7706 | |
7707 | Sema::AssignConvertType ConvTy = Sema::Compatible; |
7708 | |
7709 | |
7710 | |
7711 | |
7712 | |
7713 | |
7714 | if (lhq.getObjCLifetime() != rhq.getObjCLifetime() && |
7715 | lhq.compatiblyIncludesObjCLifetime(rhq)) { |
7716 | |
7717 | lhq.removeObjCLifetime(); |
7718 | rhq.removeObjCLifetime(); |
7719 | } |
7720 | |
7721 | if (!lhq.compatiblyIncludes(rhq)) { |
7722 | |
7723 | if (!lhq.isAddressSpaceSupersetOf(rhq)) |
7724 | ConvTy = Sema::IncompatiblePointerDiscardsQualifiers; |
7725 | |
7726 | |
7727 | |
7728 | else if (lhq.withoutObjCGCAttr().withoutObjCLifetime() |
7729 | .compatiblyIncludes( |
7730 | rhq.withoutObjCGCAttr().withoutObjCLifetime()) |
7731 | && (lhptee->isVoidType() || rhptee->isVoidType())) |
7732 | ; |
7733 | |
7734 | |
7735 | else if (lhq.getObjCLifetime() != rhq.getObjCLifetime()) |
7736 | ConvTy = Sema::IncompatiblePointerDiscardsQualifiers; |
7737 | |
7738 | |
7739 | |
7740 | else ConvTy = Sema::CompatiblePointerDiscardsQualifiers; |
7741 | } |
7742 | |
7743 | |
7744 | |
7745 | |
7746 | if (lhptee->isVoidType()) { |
7747 | if (rhptee->isIncompleteOrObjectType()) |
7748 | return ConvTy; |
7749 | |
7750 | |
7751 | isFunctionType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7751, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(rhptee->isFunctionType()); |
7752 | return Sema::FunctionVoidPointer; |
7753 | } |
7754 | |
7755 | if (rhptee->isVoidType()) { |
7756 | if (lhptee->isIncompleteOrObjectType()) |
7757 | return ConvTy; |
7758 | |
7759 | |
7760 | isFunctionType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7760, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(lhptee->isFunctionType()); |
7761 | return Sema::FunctionVoidPointer; |
7762 | } |
7763 | |
7764 | |
7765 | |
7766 | QualType ltrans = QualType(lhptee, 0), rtrans = QualType(rhptee, 0); |
7767 | if (!S.Context.typesAreCompatible(ltrans, rtrans)) { |
7768 | |
7769 | |
7770 | |
7771 | if (lhptee->isCharType()) |
7772 | ltrans = S.Context.UnsignedCharTy; |
7773 | else if (lhptee->hasSignedIntegerRepresentation()) |
7774 | ltrans = S.Context.getCorrespondingUnsignedType(ltrans); |
7775 | |
7776 | if (rhptee->isCharType()) |
7777 | rtrans = S.Context.UnsignedCharTy; |
7778 | else if (rhptee->hasSignedIntegerRepresentation()) |
7779 | rtrans = S.Context.getCorrespondingUnsignedType(rtrans); |
7780 | |
7781 | if (ltrans == rtrans) { |
7782 | |
7783 | |
7784 | |
7785 | if (ConvTy != Sema::Compatible) |
7786 | return ConvTy; |
7787 | |
7788 | return Sema::IncompatiblePointerSign; |
7789 | } |
7790 | |
7791 | |
7792 | |
7793 | |
7794 | |
7795 | if (isa<PointerType>(lhptee) && isa<PointerType>(rhptee)) { |
7796 | do { |
7797 | lhptee = cast<PointerType>(lhptee)->getPointeeType().getTypePtr(); |
7798 | rhptee = cast<PointerType>(rhptee)->getPointeeType().getTypePtr(); |
7799 | } while (isa<PointerType>(lhptee) && isa<PointerType>(rhptee)); |
7800 | |
7801 | if (lhptee == rhptee) |
7802 | return Sema::IncompatibleNestedPointerQualifiers; |
7803 | } |
7804 | |
7805 | |
7806 | return Sema::IncompatiblePointer; |
7807 | } |
7808 | if (!S.getLangOpts().CPlusPlus && |
7809 | S.IsFunctionConversion(ltrans, rtrans, ltrans)) |
7810 | return Sema::IncompatiblePointer; |
7811 | return ConvTy; |
7812 | } |
7813 | |
7814 | |
7815 | |
7816 | |
7817 | |
7818 | static Sema::AssignConvertType |
7819 | checkBlockPointerTypesForAssignment(Sema &S, QualType LHSType, |
7820 | QualType RHSType) { |
7821 | (0) . __assert_fail ("LHSType.isCanonical() && \"LHS not canonicalized!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7821, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSType.isCanonical() && "LHS not canonicalized!"); |
7822 | (0) . __assert_fail ("RHSType.isCanonical() && \"RHS not canonicalized!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7822, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHSType.isCanonical() && "RHS not canonicalized!"); |
7823 | |
7824 | QualType lhptee, rhptee; |
7825 | |
7826 | |
7827 | lhptee = cast<BlockPointerType>(LHSType)->getPointeeType(); |
7828 | rhptee = cast<BlockPointerType>(RHSType)->getPointeeType(); |
7829 | |
7830 | |
7831 | if (S.getLangOpts().CPlusPlus) |
7832 | return Sema::IncompatibleBlockPointer; |
7833 | |
7834 | Sema::AssignConvertType ConvTy = Sema::Compatible; |
7835 | |
7836 | |
7837 | Qualifiers LQuals = lhptee.getLocalQualifiers(); |
7838 | Qualifiers RQuals = rhptee.getLocalQualifiers(); |
7839 | if (S.getLangOpts().OpenCL) { |
7840 | LQuals.removeAddressSpace(); |
7841 | RQuals.removeAddressSpace(); |
7842 | } |
7843 | if (LQuals != RQuals) |
7844 | ConvTy = Sema::CompatiblePointerDiscardsQualifiers; |
7845 | |
7846 | |
7847 | |
7848 | |
7849 | |
7850 | |
7851 | |
7852 | |
7853 | |
7854 | |
7855 | |
7856 | if (S.getLangOpts().OpenCL) { |
7857 | if (!S.Context.typesAreBlockPointerCompatible( |
7858 | S.Context.getQualifiedType(LHSType.getUnqualifiedType(), LQuals), |
7859 | S.Context.getQualifiedType(RHSType.getUnqualifiedType(), RQuals))) |
7860 | return Sema::IncompatibleBlockPointer; |
7861 | } else if (!S.Context.typesAreBlockPointerCompatible(LHSType, RHSType)) |
7862 | return Sema::IncompatibleBlockPointer; |
7863 | |
7864 | return ConvTy; |
7865 | } |
7866 | |
7867 | |
7868 | |
7869 | static Sema::AssignConvertType |
7870 | checkObjCPointerTypesForAssignment(Sema &S, QualType LHSType, |
7871 | QualType RHSType) { |
7872 | (0) . __assert_fail ("LHSType.isCanonical() && \"LHS was not canonicalized!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7872, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSType.isCanonical() && "LHS was not canonicalized!"); |
7873 | (0) . __assert_fail ("RHSType.isCanonical() && \"RHS was not canonicalized!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 7873, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHSType.isCanonical() && "RHS was not canonicalized!"); |
7874 | |
7875 | if (LHSType->isObjCBuiltinType()) { |
7876 | |
7877 | if (LHSType->isObjCClassType() && !RHSType->isObjCBuiltinType() && |
7878 | !RHSType->isObjCQualifiedClassType()) |
7879 | return Sema::IncompatiblePointer; |
7880 | return Sema::Compatible; |
7881 | } |
7882 | if (RHSType->isObjCBuiltinType()) { |
7883 | if (RHSType->isObjCClassType() && !LHSType->isObjCBuiltinType() && |
7884 | !LHSType->isObjCQualifiedClassType()) |
7885 | return Sema::IncompatiblePointer; |
7886 | return Sema::Compatible; |
7887 | } |
7888 | QualType lhptee = LHSType->getAs<ObjCObjectPointerType>()->getPointeeType(); |
7889 | QualType rhptee = RHSType->getAs<ObjCObjectPointerType>()->getPointeeType(); |
7890 | |
7891 | if (!lhptee.isAtLeastAsQualifiedAs(rhptee) && |
7892 | |
7893 | !LHSType->isObjCQualifiedIdType()) |
7894 | return Sema::CompatiblePointerDiscardsQualifiers; |
7895 | |
7896 | if (S.Context.typesAreCompatible(LHSType, RHSType)) |
7897 | return Sema::Compatible; |
7898 | if (LHSType->isObjCQualifiedIdType() || RHSType->isObjCQualifiedIdType()) |
7899 | return Sema::IncompatibleObjCQualifiedId; |
7900 | return Sema::IncompatiblePointer; |
7901 | } |
7902 | |
7903 | Sema::AssignConvertType |
7904 | Sema::CheckAssignmentConstraints(SourceLocation Loc, |
7905 | QualType LHSType, QualType RHSType) { |
7906 | |
7907 | |
7908 | |
7909 | |
7910 | OpaqueValueExpr RHSExpr(Loc, RHSType, VK_RValue); |
7911 | ExprResult RHSPtr = &RHSExpr; |
7912 | CastKind K; |
7913 | |
7914 | return CheckAssignmentConstraints(LHSType, RHSPtr, K, ); |
7915 | } |
7916 | |
7917 | |
7918 | |
7919 | static bool isVector(QualType QT, QualType ElementType) { |
7920 | if (const VectorType *VT = QT->getAs<VectorType>()) |
7921 | return VT->getElementType() == ElementType; |
7922 | return false; |
7923 | } |
7924 | |
7925 | |
7926 | |
7927 | |
7928 | |
7929 | |
7930 | |
7931 | |
7932 | |
7933 | |
7934 | |
7935 | |
7936 | |
7937 | |
7938 | |
7939 | |
7940 | |
7941 | |
7942 | Sema::AssignConvertType |
7943 | Sema::CheckAssignmentConstraints(QualType LHSType, ExprResult &RHS, |
7944 | CastKind &Kind, bool ConvertRHS) { |
7945 | QualType RHSType = RHS.get()->getType(); |
7946 | QualType OrigLHSType = LHSType; |
7947 | |
7948 | |
7949 | |
7950 | LHSType = Context.getCanonicalType(LHSType).getUnqualifiedType(); |
7951 | RHSType = Context.getCanonicalType(RHSType).getUnqualifiedType(); |
7952 | |
7953 | |
7954 | if (LHSType == RHSType) { |
7955 | Kind = CK_NoOp; |
7956 | return Compatible; |
7957 | } |
7958 | |
7959 | |
7960 | |
7961 | if (const AtomicType *AtomicTy = dyn_cast<AtomicType>(LHSType)) { |
7962 | Sema::AssignConvertType result = |
7963 | CheckAssignmentConstraints(AtomicTy->getValueType(), RHS, Kind); |
7964 | if (result != Compatible) |
7965 | return result; |
7966 | if (Kind != CK_NoOp && ConvertRHS) |
7967 | RHS = ImpCastExprToType(RHS.get(), AtomicTy->getValueType(), Kind); |
7968 | Kind = CK_NonAtomicToAtomic; |
7969 | return Compatible; |
7970 | } |
7971 | |
7972 | |
7973 | |
7974 | |
7975 | |
7976 | |
7977 | |
7978 | |
7979 | if (const ReferenceType *LHSTypeRef = LHSType->getAs<ReferenceType>()) { |
7980 | if (Context.typesAreCompatible(LHSTypeRef->getPointeeType(), RHSType)) { |
7981 | Kind = CK_LValueBitCast; |
7982 | return Compatible; |
7983 | } |
7984 | return Incompatible; |
7985 | } |
7986 | |
7987 | |
7988 | |
7989 | if (LHSType->isExtVectorType()) { |
7990 | if (RHSType->isExtVectorType()) |
7991 | return Incompatible; |
7992 | if (RHSType->isArithmeticType()) { |
7993 | |
7994 | if (ConvertRHS) |
7995 | RHS = prepareVectorSplat(LHSType, RHS.get()); |
7996 | Kind = CK_VectorSplat; |
7997 | return Compatible; |
7998 | } |
7999 | } |
8000 | |
8001 | |
8002 | if (LHSType->isVectorType() || RHSType->isVectorType()) { |
8003 | if (LHSType->isVectorType() && RHSType->isVectorType()) { |
8004 | |
8005 | |
8006 | if (Context.areCompatibleVectorTypes(LHSType, RHSType)) { |
8007 | Kind = CK_BitCast; |
8008 | return Compatible; |
8009 | } |
8010 | |
8011 | |
8012 | |
8013 | |
8014 | if (isLaxVectorConversion(RHSType, LHSType)) { |
8015 | Kind = CK_BitCast; |
8016 | return IncompatibleVectors; |
8017 | } |
8018 | } |
8019 | |
8020 | |
8021 | |
8022 | |
8023 | |
8024 | if (LHSType->isScalarType()) { |
8025 | const VectorType *VecType = RHSType->getAs<VectorType>(); |
8026 | if (VecType && VecType->getNumElements() == 1 && |
8027 | isLaxVectorConversion(RHSType, LHSType)) { |
8028 | ExprResult *VecExpr = &RHS; |
8029 | *VecExpr = ImpCastExprToType(VecExpr->get(), LHSType, CK_BitCast); |
8030 | Kind = CK_BitCast; |
8031 | return Compatible; |
8032 | } |
8033 | } |
8034 | |
8035 | return Incompatible; |
8036 | } |
8037 | |
8038 | |
8039 | |
8040 | if (unsupportedTypeConversion(*this, LHSType, RHSType)) |
8041 | return Incompatible; |
8042 | |
8043 | |
8044 | |
8045 | if (getLangOpts().CPlusPlus && RHSType->getAs<ComplexType>() && |
8046 | !LHSType->getAs<ComplexType>()) |
8047 | return Incompatible; |
8048 | |
8049 | |
8050 | if (LHSType->isArithmeticType() && RHSType->isArithmeticType() && |
8051 | !(getLangOpts().CPlusPlus && LHSType->isEnumeralType())) { |
8052 | if (ConvertRHS) |
8053 | Kind = PrepareScalarCast(RHS, LHSType); |
8054 | return Compatible; |
8055 | } |
8056 | |
8057 | |
8058 | if (const PointerType *LHSPointer = dyn_cast<PointerType>(LHSType)) { |
8059 | |
8060 | if (isa<PointerType>(RHSType)) { |
8061 | LangAS AddrSpaceL = LHSPointer->getPointeeType().getAddressSpace(); |
8062 | LangAS AddrSpaceR = RHSType->getPointeeType().getAddressSpace(); |
8063 | if (AddrSpaceL != AddrSpaceR) |
8064 | Kind = CK_AddressSpaceConversion; |
8065 | else if (Context.hasCvrSimilarType(RHSType, LHSType)) |
8066 | Kind = CK_NoOp; |
8067 | else |
8068 | Kind = CK_BitCast; |
8069 | return checkPointerTypesForAssignment(*this, LHSType, RHSType); |
8070 | } |
8071 | |
8072 | |
8073 | if (RHSType->isIntegerType()) { |
8074 | Kind = CK_IntegralToPointer; |
8075 | return IntToPointer; |
8076 | } |
8077 | |
8078 | |
8079 | |
8080 | if (isa<ObjCObjectPointerType>(RHSType)) { |
8081 | |
8082 | if (LHSPointer->getPointeeType()->isVoidType()) { |
8083 | Kind = CK_BitCast; |
8084 | return Compatible; |
8085 | } |
8086 | |
8087 | |
8088 | if (RHSType->isObjCClassType() && |
8089 | Context.hasSameType(LHSType, |
8090 | Context.getObjCClassRedefinitionType())) { |
8091 | Kind = CK_BitCast; |
8092 | return Compatible; |
8093 | } |
8094 | |
8095 | Kind = CK_BitCast; |
8096 | return IncompatiblePointer; |
8097 | } |
8098 | |
8099 | |
8100 | if (RHSType->getAs<BlockPointerType>()) { |
8101 | if (LHSPointer->getPointeeType()->isVoidType()) { |
8102 | LangAS AddrSpaceL = LHSPointer->getPointeeType().getAddressSpace(); |
8103 | LangAS AddrSpaceR = RHSType->getAs<BlockPointerType>() |
8104 | ->getPointeeType() |
8105 | .getAddressSpace(); |
8106 | Kind = |
8107 | AddrSpaceL != AddrSpaceR ? CK_AddressSpaceConversion : CK_BitCast; |
8108 | return Compatible; |
8109 | } |
8110 | } |
8111 | |
8112 | return Incompatible; |
8113 | } |
8114 | |
8115 | |
8116 | if (isa<BlockPointerType>(LHSType)) { |
8117 | |
8118 | if (RHSType->isBlockPointerType()) { |
8119 | LangAS AddrSpaceL = LHSType->getAs<BlockPointerType>() |
8120 | ->getPointeeType() |
8121 | .getAddressSpace(); |
8122 | LangAS AddrSpaceR = RHSType->getAs<BlockPointerType>() |
8123 | ->getPointeeType() |
8124 | .getAddressSpace(); |
8125 | Kind = AddrSpaceL != AddrSpaceR ? CK_AddressSpaceConversion : CK_BitCast; |
8126 | return checkBlockPointerTypesForAssignment(*this, LHSType, RHSType); |
8127 | } |
8128 | |
8129 | |
8130 | if (RHSType->isIntegerType()) { |
8131 | Kind = CK_IntegralToPointer; |
8132 | return IntToBlockPointer; |
8133 | } |
8134 | |
8135 | |
8136 | if (getLangOpts().ObjC && RHSType->isObjCIdType()) { |
8137 | Kind = CK_AnyPointerToBlockPointerCast; |
8138 | return Compatible; |
8139 | } |
8140 | |
8141 | |
8142 | if (const PointerType *RHSPT = RHSType->getAs<PointerType>()) |
8143 | if (RHSPT->getPointeeType()->isVoidType()) { |
8144 | Kind = CK_AnyPointerToBlockPointerCast; |
8145 | return Compatible; |
8146 | } |
8147 | |
8148 | return Incompatible; |
8149 | } |
8150 | |
8151 | |
8152 | if (isa<ObjCObjectPointerType>(LHSType)) { |
8153 | |
8154 | if (RHSType->isObjCObjectPointerType()) { |
8155 | Kind = CK_BitCast; |
8156 | Sema::AssignConvertType result = |
8157 | checkObjCPointerTypesForAssignment(*this, LHSType, RHSType); |
8158 | if (getLangOpts().allowsNonTrivialObjCLifetimeQualifiers() && |
8159 | result == Compatible && |
8160 | !CheckObjCARCUnavailableWeakConversion(OrigLHSType, RHSType)) |
8161 | result = IncompatibleObjCWeakRef; |
8162 | return result; |
8163 | } |
8164 | |
8165 | |
8166 | if (RHSType->isIntegerType()) { |
8167 | Kind = CK_IntegralToPointer; |
8168 | return IntToPointer; |
8169 | } |
8170 | |
8171 | |
8172 | |
8173 | if (isa<PointerType>(RHSType)) { |
8174 | Kind = CK_CPointerToObjCPointerCast; |
8175 | |
8176 | |
8177 | if (RHSType->isVoidPointerType()) { |
8178 | return Compatible; |
8179 | } |
8180 | |
8181 | |
8182 | if (LHSType->isObjCClassType() && |
8183 | Context.hasSameType(RHSType, |
8184 | Context.getObjCClassRedefinitionType())) { |
8185 | return Compatible; |
8186 | } |
8187 | |
8188 | return IncompatiblePointer; |
8189 | } |
8190 | |
8191 | |
8192 | if (RHSType->isBlockPointerType() && |
8193 | LHSType->isBlockCompatibleObjCPointerType(Context)) { |
8194 | if (ConvertRHS) |
8195 | maybeExtendBlockObject(RHS); |
8196 | Kind = CK_BlockPointerToObjCPointerCast; |
8197 | return Compatible; |
8198 | } |
8199 | |
8200 | return Incompatible; |
8201 | } |
8202 | |
8203 | |
8204 | if (isa<PointerType>(RHSType)) { |
8205 | |
8206 | if (LHSType == Context.BoolTy) { |
8207 | Kind = CK_PointerToBoolean; |
8208 | return Compatible; |
8209 | } |
8210 | |
8211 | |
8212 | if (LHSType->isIntegerType()) { |
8213 | Kind = CK_PointerToIntegral; |
8214 | return PointerToInt; |
8215 | } |
8216 | |
8217 | return Incompatible; |
8218 | } |
8219 | |
8220 | |
8221 | if (isa<ObjCObjectPointerType>(RHSType)) { |
8222 | |
8223 | if (LHSType == Context.BoolTy) { |
8224 | Kind = CK_PointerToBoolean; |
8225 | return Compatible; |
8226 | } |
8227 | |
8228 | |
8229 | if (LHSType->isIntegerType()) { |
8230 | Kind = CK_PointerToIntegral; |
8231 | return PointerToInt; |
8232 | } |
8233 | |
8234 | return Incompatible; |
8235 | } |
8236 | |
8237 | |
8238 | if (isa<TagType>(LHSType) && isa<TagType>(RHSType)) { |
8239 | if (Context.typesAreCompatible(LHSType, RHSType)) { |
8240 | Kind = CK_NoOp; |
8241 | return Compatible; |
8242 | } |
8243 | } |
8244 | |
8245 | if (LHSType->isSamplerT() && RHSType->isIntegerType()) { |
8246 | Kind = CK_IntToOCLSampler; |
8247 | return Compatible; |
8248 | } |
8249 | |
8250 | return Incompatible; |
8251 | } |
8252 | |
8253 | |
8254 | |
8255 | static void ConstructTransparentUnion(Sema &S, ASTContext &C, |
8256 | ExprResult &EResult, QualType UnionType, |
8257 | FieldDecl *Field) { |
8258 | |
8259 | |
8260 | Expr *E = EResult.get(); |
8261 | InitListExpr *Initializer = new (C) InitListExpr(C, SourceLocation(), |
8262 | E, SourceLocation()); |
8263 | Initializer->setType(UnionType); |
8264 | Initializer->setInitializedFieldInUnion(Field); |
8265 | |
8266 | |
8267 | |
8268 | TypeSourceInfo *unionTInfo = C.getTrivialTypeSourceInfo(UnionType); |
8269 | EResult = new (C) CompoundLiteralExpr(SourceLocation(), unionTInfo, UnionType, |
8270 | VK_RValue, Initializer, false); |
8271 | } |
8272 | |
8273 | Sema::AssignConvertType |
8274 | Sema::CheckTransparentUnionArgumentConstraints(QualType ArgType, |
8275 | ExprResult &RHS) { |
8276 | QualType RHSType = RHS.get()->getType(); |
8277 | |
8278 | |
8279 | |
8280 | const RecordType *UT = ArgType->getAsUnionType(); |
8281 | if (!UT || !UT->getDecl()->hasAttr<TransparentUnionAttr>()) |
8282 | return Incompatible; |
8283 | |
8284 | |
8285 | RecordDecl *UD = UT->getDecl(); |
8286 | FieldDecl *InitField = nullptr; |
8287 | |
8288 | for (auto *it : UD->fields()) { |
8289 | if (it->getType()->isPointerType()) { |
8290 | |
8291 | |
8292 | |
8293 | if (RHSType->isPointerType()) |
8294 | if (RHSType->castAs<PointerType>()->getPointeeType()->isVoidType()) { |
8295 | RHS = ImpCastExprToType(RHS.get(), it->getType(), CK_BitCast); |
8296 | InitField = it; |
8297 | break; |
8298 | } |
8299 | |
8300 | if (RHS.get()->isNullPointerConstant(Context, |
8301 | Expr::NPC_ValueDependentIsNull)) { |
8302 | RHS = ImpCastExprToType(RHS.get(), it->getType(), |
8303 | CK_NullToPointer); |
8304 | InitField = it; |
8305 | break; |
8306 | } |
8307 | } |
8308 | |
8309 | CastKind Kind; |
8310 | if (CheckAssignmentConstraints(it->getType(), RHS, Kind) |
8311 | == Compatible) { |
8312 | RHS = ImpCastExprToType(RHS.get(), it->getType(), Kind); |
8313 | InitField = it; |
8314 | break; |
8315 | } |
8316 | } |
8317 | |
8318 | if (!InitField) |
8319 | return Incompatible; |
8320 | |
8321 | ConstructTransparentUnion(*this, Context, RHS, ArgType, InitField); |
8322 | return Compatible; |
8323 | } |
8324 | |
8325 | Sema::AssignConvertType |
8326 | Sema::CheckSingleAssignmentConstraints(QualType LHSType, ExprResult &CallerRHS, |
8327 | bool Diagnose, |
8328 | bool DiagnoseCFAudited, |
8329 | bool ConvertRHS) { |
8330 | |
8331 | |
8332 | (0) . __assert_fail ("(ConvertRHS || !Diagnose) && \"can't indicate whether we diagnosed\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 8332, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((ConvertRHS || !Diagnose) && "can't indicate whether we diagnosed"); |
8333 | |
8334 | |
8335 | |
8336 | |
8337 | ExprResult LocalRHS = CallerRHS; |
8338 | ExprResult &RHS = ConvertRHS ? CallerRHS : LocalRHS; |
8339 | |
8340 | if (const auto *LHSPtrType = LHSType->getAs<PointerType>()) { |
8341 | if (const auto *RHSPtrType = RHS.get()->getType()->getAs<PointerType>()) { |
8342 | if (RHSPtrType->getPointeeType()->hasAttr(attr::NoDeref) && |
8343 | !LHSPtrType->getPointeeType()->hasAttr(attr::NoDeref)) { |
8344 | Diag(RHS.get()->getExprLoc(), |
8345 | diag::warn_noderef_to_dereferenceable_pointer) |
8346 | << RHS.get()->getSourceRange(); |
8347 | } |
8348 | } |
8349 | } |
8350 | |
8351 | if (getLangOpts().CPlusPlus) { |
8352 | if (!LHSType->isRecordType() && !LHSType->isAtomicType()) { |
8353 | |
8354 | |
8355 | |
8356 | QualType RHSType = RHS.get()->getType(); |
8357 | if (Diagnose) { |
8358 | RHS = PerformImplicitConversion(RHS.get(), LHSType.getUnqualifiedType(), |
8359 | AA_Assigning); |
8360 | } else { |
8361 | ImplicitConversionSequence ICS = |
8362 | TryImplicitConversion(RHS.get(), LHSType.getUnqualifiedType(), |
8363 | , |
8364 | , |
8365 | , |
8366 | , |
8367 | ); |
8368 | if (ICS.isFailure()) |
8369 | return Incompatible; |
8370 | RHS = PerformImplicitConversion(RHS.get(), LHSType.getUnqualifiedType(), |
8371 | ICS, AA_Assigning); |
8372 | } |
8373 | if (RHS.isInvalid()) |
8374 | return Incompatible; |
8375 | Sema::AssignConvertType result = Compatible; |
8376 | if (getLangOpts().allowsNonTrivialObjCLifetimeQualifiers() && |
8377 | !CheckObjCARCUnavailableWeakConversion(LHSType, RHSType)) |
8378 | result = IncompatibleObjCWeakRef; |
8379 | return result; |
8380 | } |
8381 | |
8382 | |
8383 | |
8384 | |
8385 | |
8386 | } else if (RHS.get()->getType() == Context.OverloadTy) { |
8387 | |
8388 | |
8389 | DeclAccessPair DAP; |
8390 | if (FunctionDecl *FD = ResolveAddressOfOverloadedFunction( |
8391 | RHS.get(), LHSType, , DAP)) |
8392 | RHS = FixOverloadedFunctionReference(RHS.get(), DAP, FD); |
8393 | else |
8394 | return Incompatible; |
8395 | } |
8396 | |
8397 | |
8398 | |
8399 | if ((LHSType->isPointerType() || LHSType->isObjCObjectPointerType() || |
8400 | LHSType->isBlockPointerType()) && |
8401 | RHS.get()->isNullPointerConstant(Context, |
8402 | Expr::NPC_ValueDependentIsNull)) { |
8403 | if (Diagnose || ConvertRHS) { |
8404 | CastKind Kind; |
8405 | CXXCastPath Path; |
8406 | CheckPointerConversion(RHS.get(), LHSType, Kind, Path, |
8407 | , Diagnose); |
8408 | if (ConvertRHS) |
8409 | RHS = ImpCastExprToType(RHS.get(), LHSType, Kind, VK_RValue, &Path); |
8410 | } |
8411 | return Compatible; |
8412 | } |
8413 | |
8414 | |
8415 | if (LHSType->isQueueT() && RHS.get()->isNullPointerConstant( |
8416 | Context, Expr::NPC_ValueDependentIsNull)) { |
8417 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_NullToPointer); |
8418 | return Compatible; |
8419 | } |
8420 | |
8421 | |
8422 | |
8423 | |
8424 | |
8425 | |
8426 | |
8427 | if (!LHSType->isReferenceType()) { |
8428 | |
8429 | RHS = DefaultFunctionArrayLvalueConversion(RHS.get(), Diagnose); |
8430 | if (RHS.isInvalid()) |
8431 | return Incompatible; |
8432 | } |
8433 | CastKind Kind; |
8434 | Sema::AssignConvertType result = |
8435 | CheckAssignmentConstraints(LHSType, RHS, Kind, ConvertRHS); |
8436 | |
8437 | |
8438 | |
8439 | |
8440 | |
8441 | |
8442 | |
8443 | if (result != Incompatible && RHS.get()->getType() != LHSType) { |
8444 | QualType Ty = LHSType.getNonLValueExprType(Context); |
8445 | Expr *E = RHS.get(); |
8446 | |
8447 | |
8448 | |
8449 | |
8450 | if (getLangOpts().allowsNonTrivialObjCLifetimeQualifiers() && |
8451 | CheckObjCConversion(SourceRange(), Ty, E, CCK_ImplicitConversion, |
8452 | Diagnose, DiagnoseCFAudited) != ACR_okay) { |
8453 | if (!Diagnose) |
8454 | return Incompatible; |
8455 | } |
8456 | if (getLangOpts().ObjC && |
8457 | (CheckObjCBridgeRelatedConversions(E->getBeginLoc(), LHSType, |
8458 | E->getType(), E, Diagnose) || |
8459 | ConversionToObjCStringLiteralCheck(LHSType, E, Diagnose))) { |
8460 | if (!Diagnose) |
8461 | return Incompatible; |
8462 | |
8463 | |
8464 | RHS = E; |
8465 | return Compatible; |
8466 | } |
8467 | |
8468 | if (ConvertRHS) |
8469 | RHS = ImpCastExprToType(E, Ty, Kind); |
8470 | } |
8471 | |
8472 | return result; |
8473 | } |
8474 | |
8475 | namespace { |
8476 | |
8477 | |
8478 | |
8479 | struct OriginalOperand { |
8480 | explicit OriginalOperand(Expr *Op) : Orig(Op), Conversion(nullptr) { |
8481 | if (auto *MTE = dyn_cast<MaterializeTemporaryExpr>(Op)) |
8482 | Op = MTE->GetTemporaryExpr(); |
8483 | if (auto *BTE = dyn_cast<CXXBindTemporaryExpr>(Op)) |
8484 | Op = BTE->getSubExpr(); |
8485 | if (auto *ICE = dyn_cast<ImplicitCastExpr>(Op)) { |
8486 | Orig = ICE->getSubExprAsWritten(); |
8487 | Conversion = ICE->getConversionFunction(); |
8488 | } |
8489 | } |
8490 | |
8491 | QualType getType() const { return Orig->getType(); } |
8492 | |
8493 | Expr *Orig; |
8494 | NamedDecl *Conversion; |
8495 | }; |
8496 | } |
8497 | |
8498 | QualType Sema::InvalidOperands(SourceLocation Loc, ExprResult &LHS, |
8499 | ExprResult &RHS) { |
8500 | OriginalOperand OrigLHS(LHS.get()), OrigRHS(RHS.get()); |
8501 | |
8502 | Diag(Loc, diag::err_typecheck_invalid_operands) |
8503 | << OrigLHS.getType() << OrigRHS.getType() |
8504 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
8505 | |
8506 | |
8507 | |
8508 | if (OrigLHS.Conversion) { |
8509 | Diag(OrigLHS.Conversion->getLocation(), |
8510 | diag::note_typecheck_invalid_operands_converted) |
8511 | << 0 << LHS.get()->getType(); |
8512 | } |
8513 | if (OrigRHS.Conversion) { |
8514 | Diag(OrigRHS.Conversion->getLocation(), |
8515 | diag::note_typecheck_invalid_operands_converted) |
8516 | << 1 << RHS.get()->getType(); |
8517 | } |
8518 | |
8519 | return QualType(); |
8520 | } |
8521 | |
8522 | |
8523 | |
8524 | |
8525 | QualType Sema::InvalidLogicalVectorOperands(SourceLocation Loc, ExprResult &LHS, |
8526 | ExprResult &RHS) { |
8527 | QualType LHSType = LHS.get()->IgnoreImpCasts()->getType(); |
8528 | QualType RHSType = RHS.get()->IgnoreImpCasts()->getType(); |
8529 | |
8530 | bool LHSNatVec = LHSType->isVectorType(); |
8531 | bool RHSNatVec = RHSType->isVectorType(); |
8532 | |
8533 | if (!(LHSNatVec && RHSNatVec)) { |
8534 | Expr *Vector = LHSNatVec ? LHS.get() : RHS.get(); |
8535 | Expr *NonVector = !LHSNatVec ? LHS.get() : RHS.get(); |
8536 | Diag(Loc, diag::err_typecheck_logical_vector_expr_gnu_cpp_restrict) |
8537 | << 0 << Vector->getType() << NonVector->IgnoreImpCasts()->getType() |
8538 | << Vector->getSourceRange(); |
8539 | return QualType(); |
8540 | } |
8541 | |
8542 | Diag(Loc, diag::err_typecheck_logical_vector_expr_gnu_cpp_restrict) |
8543 | << 1 << LHSType << RHSType << LHS.get()->getSourceRange() |
8544 | << RHS.get()->getSourceRange(); |
8545 | |
8546 | return QualType(); |
8547 | } |
8548 | |
8549 | |
8550 | |
8551 | |
8552 | |
8553 | |
8554 | |
8555 | |
8556 | |
8557 | |
8558 | |
8559 | |
8560 | |
8561 | static bool tryVectorConvertAndSplat(Sema &S, ExprResult *scalar, |
8562 | QualType scalarTy, |
8563 | QualType vectorEltTy, |
8564 | QualType vectorTy, |
8565 | unsigned &DiagID) { |
8566 | |
8567 | |
8568 | CastKind scalarCast = CK_NoOp; |
8569 | |
8570 | if (vectorEltTy->isIntegralType(S.Context)) { |
8571 | if (S.getLangOpts().OpenCL && (scalarTy->isRealFloatingType() || |
8572 | (scalarTy->isIntegerType() && |
8573 | S.Context.getIntegerTypeOrder(vectorEltTy, scalarTy) < 0))) { |
8574 | DiagID = diag::err_opencl_scalar_type_rank_greater_than_vector_type; |
8575 | return true; |
8576 | } |
8577 | if (!scalarTy->isIntegralType(S.Context)) |
8578 | return true; |
8579 | scalarCast = CK_IntegralCast; |
8580 | } else if (vectorEltTy->isRealFloatingType()) { |
8581 | if (scalarTy->isRealFloatingType()) { |
8582 | if (S.getLangOpts().OpenCL && |
8583 | S.Context.getFloatingTypeOrder(vectorEltTy, scalarTy) < 0) { |
8584 | DiagID = diag::err_opencl_scalar_type_rank_greater_than_vector_type; |
8585 | return true; |
8586 | } |
8587 | scalarCast = CK_FloatingCast; |
8588 | } |
8589 | else if (scalarTy->isIntegralType(S.Context)) |
8590 | scalarCast = CK_IntegralToFloating; |
8591 | else |
8592 | return true; |
8593 | } else { |
8594 | return true; |
8595 | } |
8596 | |
8597 | |
8598 | if (scalar) { |
8599 | if (scalarCast != CK_NoOp) |
8600 | *scalar = S.ImpCastExprToType(scalar->get(), vectorEltTy, scalarCast); |
8601 | *scalar = S.ImpCastExprToType(scalar->get(), vectorTy, CK_VectorSplat); |
8602 | } |
8603 | return false; |
8604 | } |
8605 | |
8606 | |
8607 | |
8608 | static ExprResult convertVector(Expr *E, QualType ElementType, Sema &S) { |
8609 | const auto *VecTy = E->getType()->getAs<VectorType>(); |
8610 | (0) . __assert_fail ("VecTy && \"Expression E must be a vector\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 8610, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(VecTy && "Expression E must be a vector"); |
8611 | QualType NewVecTy = S.Context.getVectorType(ElementType, |
8612 | VecTy->getNumElements(), |
8613 | VecTy->getVectorKind()); |
8614 | |
8615 | |
8616 | |
8617 | if (auto *ICE = dyn_cast<ImplicitCastExpr>(E)) |
8618 | if (ICE->getSubExpr()->getType() == NewVecTy) |
8619 | return ICE->getSubExpr(); |
8620 | |
8621 | auto Cast = ElementType->isIntegerType() ? CK_IntegralCast : CK_FloatingCast; |
8622 | return S.ImpCastExprToType(E, NewVecTy, Cast); |
8623 | } |
8624 | |
8625 | |
8626 | |
8627 | static bool canConvertIntToOtherIntTy(Sema &S, ExprResult *Int, |
8628 | QualType OtherIntTy) { |
8629 | QualType IntTy = Int->get()->getType().getUnqualifiedType(); |
8630 | |
8631 | |
8632 | |
8633 | |
8634 | Expr::EvalResult EVResult; |
8635 | bool CstInt = Int->get()->EvaluateAsInt(EVResult, S.Context); |
8636 | int Order = S.Context.getIntegerTypeOrder(OtherIntTy, IntTy); |
8637 | bool IntSigned = IntTy->hasSignedIntegerRepresentation(); |
8638 | bool OtherIntSigned = OtherIntTy->hasSignedIntegerRepresentation(); |
8639 | |
8640 | if (CstInt) { |
8641 | |
8642 | |
8643 | llvm::APSInt Result = EVResult.Val.getInt(); |
8644 | unsigned NumBits = IntSigned |
8645 | ? (Result.isNegative() ? Result.getMinSignedBits() |
8646 | : Result.getActiveBits()) |
8647 | : Result.getActiveBits(); |
8648 | if (Order < 0 && S.Context.getIntWidth(OtherIntTy) < NumBits) |
8649 | return true; |
8650 | |
8651 | |
8652 | |
8653 | |
8654 | return (IntSigned != OtherIntSigned && |
8655 | NumBits > S.Context.getIntWidth(OtherIntTy)); |
8656 | } |
8657 | |
8658 | |
8659 | |
8660 | return (Order < 0); |
8661 | } |
8662 | |
8663 | |
8664 | |
8665 | static bool canConvertIntTyToFloatTy(Sema &S, ExprResult *Int, |
8666 | QualType FloatTy) { |
8667 | QualType IntTy = Int->get()->getType().getUnqualifiedType(); |
8668 | |
8669 | |
8670 | |
8671 | Expr::EvalResult EVResult; |
8672 | bool CstInt = Int->get()->EvaluateAsInt(EVResult, S.Context); |
8673 | |
8674 | uint64_t Bits = 0; |
8675 | if (CstInt) { |
8676 | |
8677 | |
8678 | |
8679 | |
8680 | |
8681 | llvm::APSInt Result = EVResult.Val.getInt(); |
8682 | llvm::APFloat Float(S.Context.getFloatTypeSemantics(FloatTy)); |
8683 | Float.convertFromAPInt(Result, IntTy->hasSignedIntegerRepresentation(), |
8684 | llvm::APFloat::rmTowardZero); |
8685 | llvm::APSInt ConvertBack(S.Context.getIntWidth(IntTy), |
8686 | !IntTy->hasSignedIntegerRepresentation()); |
8687 | bool Ignored = false; |
8688 | Float.convertToInteger(ConvertBack, llvm::APFloat::rmNearestTiesToEven, |
8689 | &Ignored); |
8690 | if (Result != ConvertBack) |
8691 | return true; |
8692 | } else { |
8693 | |
8694 | |
8695 | Bits = S.Context.getTypeSize(IntTy); |
8696 | unsigned FloatPrec = llvm::APFloat::semanticsPrecision( |
8697 | S.Context.getFloatTypeSemantics(FloatTy)); |
8698 | if (Bits > FloatPrec) |
8699 | return true; |
8700 | } |
8701 | |
8702 | return false; |
8703 | } |
8704 | |
8705 | |
8706 | |
8707 | |
8708 | |
8709 | static bool tryGCCVectorConvertAndSplat(Sema &S, ExprResult *Scalar, |
8710 | ExprResult *Vector) { |
8711 | QualType ScalarTy = Scalar->get()->getType().getUnqualifiedType(); |
8712 | QualType VectorTy = Vector->get()->getType().getUnqualifiedType(); |
8713 | const VectorType *VT = VectorTy->getAs<VectorType>(); |
8714 | |
8715 | (0) . __assert_fail ("!isa(VT) && \"ExtVectorTypes should not be handled here!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 8716, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!isa<ExtVectorType>(VT) && |
8716 | (0) . __assert_fail ("!isa(VT) && \"ExtVectorTypes should not be handled here!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 8716, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "ExtVectorTypes should not be handled here!"); |
8717 | |
8718 | QualType VectorEltTy = VT->getElementType(); |
8719 | |
8720 | |
8721 | |
8722 | if (!VectorEltTy->isArithmeticType() || !ScalarTy->isArithmeticType()) |
8723 | return true; |
8724 | |
8725 | |
8726 | |
8727 | CastKind ScalarCast = CK_NoOp; |
8728 | |
8729 | |
8730 | |
8731 | |
8732 | |
8733 | |
8734 | |
8735 | |
8736 | if (VectorEltTy->isIntegralType(S.Context) && |
8737 | ScalarTy->isIntegralType(S.Context) && |
8738 | S.Context.getIntegerTypeOrder(VectorEltTy, ScalarTy)) { |
8739 | |
8740 | if (canConvertIntToOtherIntTy(S, Scalar, VectorEltTy)) |
8741 | return true; |
8742 | |
8743 | ScalarCast = CK_IntegralCast; |
8744 | } else if (VectorEltTy->isRealFloatingType()) { |
8745 | if (ScalarTy->isRealFloatingType()) { |
8746 | |
8747 | |
8748 | |
8749 | llvm::APFloat Result(0.0); |
8750 | bool CstScalar = Scalar->get()->EvaluateAsFloat(Result, S.Context); |
8751 | int Order = S.Context.getFloatingTypeOrder(VectorEltTy, ScalarTy); |
8752 | if (!CstScalar && Order < 0) |
8753 | return true; |
8754 | |
8755 | |
8756 | |
8757 | if (CstScalar) { |
8758 | bool Truncated = false; |
8759 | Result.convert(S.Context.getFloatTypeSemantics(VectorEltTy), |
8760 | llvm::APFloat::rmNearestTiesToEven, &Truncated); |
8761 | if (Truncated) |
8762 | return true; |
8763 | } |
8764 | |
8765 | ScalarCast = CK_FloatingCast; |
8766 | } else if (ScalarTy->isIntegralType(S.Context)) { |
8767 | if (canConvertIntTyToFloatTy(S, Scalar, VectorEltTy)) |
8768 | return true; |
8769 | |
8770 | ScalarCast = CK_IntegralToFloating; |
8771 | } else |
8772 | return true; |
8773 | } |
8774 | |
8775 | |
8776 | if (Scalar) { |
8777 | if (ScalarCast != CK_NoOp) |
8778 | *Scalar = S.ImpCastExprToType(Scalar->get(), VectorEltTy, ScalarCast); |
8779 | *Scalar = S.ImpCastExprToType(Scalar->get(), VectorTy, CK_VectorSplat); |
8780 | } |
8781 | return false; |
8782 | } |
8783 | |
8784 | QualType Sema::CheckVectorOperands(ExprResult &LHS, ExprResult &RHS, |
8785 | SourceLocation Loc, bool IsCompAssign, |
8786 | bool AllowBothBool, |
8787 | bool AllowBoolConversions) { |
8788 | if (!IsCompAssign) { |
8789 | LHS = DefaultFunctionArrayLvalueConversion(LHS.get()); |
8790 | if (LHS.isInvalid()) |
8791 | return QualType(); |
8792 | } |
8793 | RHS = DefaultFunctionArrayLvalueConversion(RHS.get()); |
8794 | if (RHS.isInvalid()) |
8795 | return QualType(); |
8796 | |
8797 | |
8798 | |
8799 | QualType LHSType = LHS.get()->getType().getUnqualifiedType(); |
8800 | QualType RHSType = RHS.get()->getType().getUnqualifiedType(); |
8801 | |
8802 | const VectorType *LHSVecType = LHSType->getAs<VectorType>(); |
8803 | const VectorType *RHSVecType = RHSType->getAs<VectorType>(); |
8804 | assert(LHSVecType || RHSVecType); |
8805 | |
8806 | |
8807 | |
8808 | if (!AllowBothBool && |
8809 | LHSVecType && LHSVecType->getVectorKind() == VectorType::AltiVecBool && |
8810 | RHSVecType && RHSVecType->getVectorKind() == VectorType::AltiVecBool) |
8811 | return InvalidOperands(Loc, LHS, RHS); |
8812 | |
8813 | |
8814 | if (Context.hasSameType(LHSType, RHSType)) |
8815 | return LHSType; |
8816 | |
8817 | |
8818 | if (LHSVecType && RHSVecType && |
8819 | Context.areCompatibleVectorTypes(LHSType, RHSType)) { |
8820 | if (isa<ExtVectorType>(LHSVecType)) { |
8821 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_BitCast); |
8822 | return LHSType; |
8823 | } |
8824 | |
8825 | if (!IsCompAssign) |
8826 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_BitCast); |
8827 | return RHSType; |
8828 | } |
8829 | |
8830 | |
8831 | |
8832 | |
8833 | if (AllowBoolConversions && LHSVecType && RHSVecType && |
8834 | LHSVecType->getNumElements() == RHSVecType->getNumElements() && |
8835 | (Context.getTypeSize(LHSVecType->getElementType()) == |
8836 | Context.getTypeSize(RHSVecType->getElementType()))) { |
8837 | if (LHSVecType->getVectorKind() == VectorType::AltiVecVector && |
8838 | LHSVecType->getElementType()->isIntegerType() && |
8839 | RHSVecType->getVectorKind() == VectorType::AltiVecBool) { |
8840 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_BitCast); |
8841 | return LHSType; |
8842 | } |
8843 | if (!IsCompAssign && |
8844 | LHSVecType->getVectorKind() == VectorType::AltiVecBool && |
8845 | RHSVecType->getVectorKind() == VectorType::AltiVecVector && |
8846 | RHSVecType->getElementType()->isIntegerType()) { |
8847 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_BitCast); |
8848 | return RHSType; |
8849 | } |
8850 | } |
8851 | |
8852 | |
8853 | |
8854 | unsigned DiagID = diag::err_typecheck_vector_not_convertable; |
8855 | if (!RHSVecType) { |
8856 | if (isa<ExtVectorType>(LHSVecType)) { |
8857 | if (!tryVectorConvertAndSplat(*this, &RHS, RHSType, |
8858 | LHSVecType->getElementType(), LHSType, |
8859 | DiagID)) |
8860 | return LHSType; |
8861 | } else { |
8862 | if (!tryGCCVectorConvertAndSplat(*this, &RHS, &LHS)) |
8863 | return LHSType; |
8864 | } |
8865 | } |
8866 | if (!LHSVecType) { |
8867 | if (isa<ExtVectorType>(RHSVecType)) { |
8868 | if (!tryVectorConvertAndSplat(*this, (IsCompAssign ? nullptr : &LHS), |
8869 | LHSType, RHSVecType->getElementType(), |
8870 | RHSType, DiagID)) |
8871 | return RHSType; |
8872 | } else { |
8873 | if (LHS.get()->getValueKind() == VK_LValue || |
8874 | !tryGCCVectorConvertAndSplat(*this, &LHS, &RHS)) |
8875 | return RHSType; |
8876 | } |
8877 | } |
8878 | |
8879 | |
8880 | |
8881 | |
8882 | QualType VecType = LHSVecType ? LHSType : RHSType; |
8883 | const VectorType *VT = LHSVecType ? LHSVecType : RHSVecType; |
8884 | QualType OtherType = LHSVecType ? RHSType : LHSType; |
8885 | ExprResult *OtherExpr = LHSVecType ? &RHS : &LHS; |
8886 | if (isLaxVectorConversion(OtherType, VecType)) { |
8887 | |
8888 | |
8889 | |
8890 | if (!IsCompAssign) { |
8891 | *OtherExpr = ImpCastExprToType(OtherExpr->get(), VecType, CK_BitCast); |
8892 | return VecType; |
8893 | |
8894 | |
8895 | |
8896 | |
8897 | |
8898 | } else if (OtherType->isExtVectorType() || OtherType->isVectorType() || |
8899 | (OtherType->isScalarType() && VT->getNumElements() == 1)) { |
8900 | ExprResult *RHSExpr = &RHS; |
8901 | *RHSExpr = ImpCastExprToType(RHSExpr->get(), LHSType, CK_BitCast); |
8902 | return VecType; |
8903 | } |
8904 | } |
8905 | |
8906 | |
8907 | |
8908 | |
8909 | if ((!RHSVecType && !RHSType->isRealType()) || |
8910 | (!LHSVecType && !LHSType->isRealType())) { |
8911 | Diag(Loc, diag::err_typecheck_vector_not_convertable_non_scalar) |
8912 | << LHSType << RHSType |
8913 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
8914 | return QualType(); |
8915 | } |
8916 | |
8917 | |
8918 | |
8919 | |
8920 | |
8921 | if (getLangOpts().OpenCL && |
8922 | RHSVecType && isa<ExtVectorType>(RHSVecType) && |
8923 | LHSVecType && isa<ExtVectorType>(LHSVecType)) { |
8924 | Diag(Loc, diag::err_opencl_implicit_vector_conversion) << LHSType |
8925 | << RHSType; |
8926 | return QualType(); |
8927 | } |
8928 | |
8929 | |
8930 | |
8931 | |
8932 | |
8933 | if ((RHSVecType && !isa<ExtVectorType>(RHSVecType)) || |
8934 | (LHSVecType && !isa<ExtVectorType>(LHSVecType))) { |
8935 | QualType Scalar = LHSVecType ? RHSType : LHSType; |
8936 | QualType Vector = LHSVecType ? LHSType : RHSType; |
8937 | unsigned ScalarOrVector = LHSVecType && RHSVecType ? 1 : 0; |
8938 | Diag(Loc, |
8939 | diag::err_typecheck_vector_not_convertable_implict_truncation) |
8940 | << ScalarOrVector << Scalar << Vector; |
8941 | |
8942 | return QualType(); |
8943 | } |
8944 | |
8945 | |
8946 | Diag(Loc, DiagID) |
8947 | << LHSType << RHSType |
8948 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
8949 | return QualType(); |
8950 | } |
8951 | |
8952 | |
8953 | |
8954 | |
8955 | static void checkArithmeticNull(Sema &S, ExprResult &LHS, ExprResult &RHS, |
8956 | SourceLocation Loc, bool IsCompare) { |
8957 | |
8958 | |
8959 | |
8960 | bool LHSNull = isa<GNUNullExpr>(LHS.get()->IgnoreParenImpCasts()); |
8961 | bool RHSNull = isa<GNUNullExpr>(RHS.get()->IgnoreParenImpCasts()); |
8962 | |
8963 | QualType NonNullType = LHSNull ? RHS.get()->getType() : LHS.get()->getType(); |
8964 | |
8965 | |
8966 | |
8967 | if ((!LHSNull && !RHSNull) || NonNullType->isBlockPointerType() || |
8968 | NonNullType->isMemberPointerType() || NonNullType->isFunctionType()) |
8969 | return; |
8970 | |
8971 | |
8972 | |
8973 | if (!IsCompare) { |
8974 | S.Diag(Loc, diag::warn_null_in_arithmetic_operation) |
8975 | << (LHSNull ? LHS.get()->getSourceRange() : SourceRange()) |
8976 | << (RHSNull ? RHS.get()->getSourceRange() : SourceRange()); |
8977 | return; |
8978 | } |
8979 | |
8980 | |
8981 | |
8982 | if (LHSNull == RHSNull || NonNullType->isAnyPointerType() || |
8983 | NonNullType->canDecayToPointerType()) |
8984 | return; |
8985 | |
8986 | S.Diag(Loc, diag::warn_null_in_comparison_operation) |
8987 | << LHSNull << NonNullType |
8988 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
8989 | } |
8990 | |
8991 | static void DiagnoseDivisionSizeofPointer(Sema &S, Expr *LHS, Expr *RHS, |
8992 | SourceLocation Loc) { |
8993 | const auto *LUE = dyn_cast<UnaryExprOrTypeTraitExpr>(LHS); |
8994 | const auto *RUE = dyn_cast<UnaryExprOrTypeTraitExpr>(RHS); |
8995 | if (!LUE || !RUE) |
8996 | return; |
8997 | if (LUE->getKind() != UETT_SizeOf || LUE->isArgumentType() || |
8998 | RUE->getKind() != UETT_SizeOf) |
8999 | return; |
9000 | |
9001 | QualType LHSTy = LUE->getArgumentExpr()->IgnoreParens()->getType(); |
9002 | QualType RHSTy; |
9003 | |
9004 | if (RUE->isArgumentType()) |
9005 | RHSTy = RUE->getArgumentType(); |
9006 | else |
9007 | RHSTy = RUE->getArgumentExpr()->IgnoreParens()->getType(); |
9008 | |
9009 | if (!LHSTy->isPointerType() || RHSTy->isPointerType()) |
9010 | return; |
9011 | if (LHSTy->getPointeeType() != RHSTy) |
9012 | return; |
9013 | |
9014 | S.Diag(Loc, diag::warn_division_sizeof_ptr) << LHS << LHS->getSourceRange(); |
9015 | } |
9016 | |
9017 | static void DiagnoseBadDivideOrRemainderValues(Sema& S, ExprResult &LHS, |
9018 | ExprResult &RHS, |
9019 | SourceLocation Loc, bool IsDiv) { |
9020 | |
9021 | Expr::EvalResult RHSValue; |
9022 | if (!RHS.get()->isValueDependent() && |
9023 | RHS.get()->EvaluateAsInt(RHSValue, S.Context) && |
9024 | RHSValue.Val.getInt() == 0) |
9025 | S.DiagRuntimeBehavior(Loc, RHS.get(), |
9026 | S.PDiag(diag::warn_remainder_division_by_zero) |
9027 | << IsDiv << RHS.get()->getSourceRange()); |
9028 | } |
9029 | |
9030 | QualType Sema::CheckMultiplyDivideOperands(ExprResult &LHS, ExprResult &RHS, |
9031 | SourceLocation Loc, |
9032 | bool IsCompAssign, bool IsDiv) { |
9033 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
9034 | |
9035 | if (LHS.get()->getType()->isVectorType() || |
9036 | RHS.get()->getType()->isVectorType()) |
9037 | return CheckVectorOperands(LHS, RHS, Loc, IsCompAssign, |
9038 | ().AltiVec, |
9039 | ); |
9040 | |
9041 | QualType compType = UsualArithmeticConversions(LHS, RHS, IsCompAssign); |
9042 | if (LHS.isInvalid() || RHS.isInvalid()) |
9043 | return QualType(); |
9044 | |
9045 | |
9046 | if (compType.isNull() || !compType->isArithmeticType()) |
9047 | return InvalidOperands(Loc, LHS, RHS); |
9048 | if (IsDiv) { |
9049 | DiagnoseBadDivideOrRemainderValues(*this, LHS, RHS, Loc, IsDiv); |
9050 | DiagnoseDivisionSizeofPointer(*this, LHS.get(), RHS.get(), Loc); |
9051 | } |
9052 | return compType; |
9053 | } |
9054 | |
9055 | QualType Sema::CheckRemainderOperands( |
9056 | ExprResult &LHS, ExprResult &RHS, SourceLocation Loc, bool IsCompAssign) { |
9057 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
9058 | |
9059 | if (LHS.get()->getType()->isVectorType() || |
9060 | RHS.get()->getType()->isVectorType()) { |
9061 | if (LHS.get()->getType()->hasIntegerRepresentation() && |
9062 | RHS.get()->getType()->hasIntegerRepresentation()) |
9063 | return CheckVectorOperands(LHS, RHS, Loc, IsCompAssign, |
9064 | ().AltiVec, |
9065 | ); |
9066 | return InvalidOperands(Loc, LHS, RHS); |
9067 | } |
9068 | |
9069 | QualType compType = UsualArithmeticConversions(LHS, RHS, IsCompAssign); |
9070 | if (LHS.isInvalid() || RHS.isInvalid()) |
9071 | return QualType(); |
9072 | |
9073 | if (compType.isNull() || !compType->isIntegerType()) |
9074 | return InvalidOperands(Loc, LHS, RHS); |
9075 | DiagnoseBadDivideOrRemainderValues(*this, LHS, RHS, Loc, false ); |
9076 | return compType; |
9077 | } |
9078 | |
9079 | |
9080 | static void diagnoseArithmeticOnTwoVoidPointers(Sema &S, SourceLocation Loc, |
9081 | Expr *LHSExpr, Expr *RHSExpr) { |
9082 | S.Diag(Loc, S.getLangOpts().CPlusPlus |
9083 | ? diag::err_typecheck_pointer_arith_void_type |
9084 | : diag::ext_gnu_void_ptr) |
9085 | << 1 << LHSExpr->getSourceRange() |
9086 | << RHSExpr->getSourceRange(); |
9087 | } |
9088 | |
9089 | |
9090 | static void diagnoseArithmeticOnVoidPointer(Sema &S, SourceLocation Loc, |
9091 | Expr *Pointer) { |
9092 | S.Diag(Loc, S.getLangOpts().CPlusPlus |
9093 | ? diag::err_typecheck_pointer_arith_void_type |
9094 | : diag::ext_gnu_void_ptr) |
9095 | << 0 << Pointer->getSourceRange(); |
9096 | } |
9097 | |
9098 | |
9099 | |
9100 | |
9101 | |
9102 | |
9103 | static void diagnoseArithmeticOnNullPointer(Sema &S, SourceLocation Loc, |
9104 | Expr *Pointer, bool IsGNUIdiom) { |
9105 | if (IsGNUIdiom) |
9106 | S.Diag(Loc, diag::warn_gnu_null_ptr_arith) |
9107 | << Pointer->getSourceRange(); |
9108 | else |
9109 | S.Diag(Loc, diag::warn_pointer_arith_null_ptr) |
9110 | << S.getLangOpts().CPlusPlus << Pointer->getSourceRange(); |
9111 | } |
9112 | |
9113 | |
9114 | static void diagnoseArithmeticOnTwoFunctionPointers(Sema &S, SourceLocation Loc, |
9115 | Expr *LHS, Expr *RHS) { |
9116 | getType()->isAnyPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9116, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHS->getType()->isAnyPointerType()); |
9117 | getType()->isAnyPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9117, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHS->getType()->isAnyPointerType()); |
9118 | S.Diag(Loc, S.getLangOpts().CPlusPlus |
9119 | ? diag::err_typecheck_pointer_arith_function_type |
9120 | : diag::ext_gnu_ptr_func_arith) |
9121 | << 1 << LHS->getType()->getPointeeType() |
9122 | |
9123 | << (unsigned)!S.Context.hasSameUnqualifiedType(LHS->getType(), |
9124 | RHS->getType()) |
9125 | << RHS->getType()->getPointeeType() |
9126 | << LHS->getSourceRange() << RHS->getSourceRange(); |
9127 | } |
9128 | |
9129 | |
9130 | static void diagnoseArithmeticOnFunctionPointer(Sema &S, SourceLocation Loc, |
9131 | Expr *Pointer) { |
9132 | getType()->isAnyPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9132, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Pointer->getType()->isAnyPointerType()); |
9133 | S.Diag(Loc, S.getLangOpts().CPlusPlus |
9134 | ? diag::err_typecheck_pointer_arith_function_type |
9135 | : diag::ext_gnu_ptr_func_arith) |
9136 | << 0 << Pointer->getType()->getPointeeType() |
9137 | << 0 |
9138 | << Pointer->getSourceRange(); |
9139 | } |
9140 | |
9141 | |
9142 | |
9143 | |
9144 | static bool checkArithmeticIncompletePointerType(Sema &S, SourceLocation Loc, |
9145 | Expr *Operand) { |
9146 | QualType ResType = Operand->getType(); |
9147 | if (const AtomicType *ResAtomicType = ResType->getAs<AtomicType>()) |
9148 | ResType = ResAtomicType->getValueType(); |
9149 | |
9150 | isAnyPointerType() && !ResType->isDependentType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9150, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ResType->isAnyPointerType() && !ResType->isDependentType()); |
9151 | QualType PointeeTy = ResType->getPointeeType(); |
9152 | return S.RequireCompleteType(Loc, PointeeTy, |
9153 | diag::err_typecheck_arithmetic_incomplete_type, |
9154 | PointeeTy, Operand->getSourceRange()); |
9155 | } |
9156 | |
9157 | |
9158 | |
9159 | |
9160 | |
9161 | |
9162 | |
9163 | |
9164 | |
9165 | static bool checkArithmeticOpPointerOperand(Sema &S, SourceLocation Loc, |
9166 | Expr *Operand) { |
9167 | QualType ResType = Operand->getType(); |
9168 | if (const AtomicType *ResAtomicType = ResType->getAs<AtomicType>()) |
9169 | ResType = ResAtomicType->getValueType(); |
9170 | |
9171 | if (!ResType->isAnyPointerType()) return true; |
9172 | |
9173 | QualType PointeeTy = ResType->getPointeeType(); |
9174 | if (PointeeTy->isVoidType()) { |
9175 | diagnoseArithmeticOnVoidPointer(S, Loc, Operand); |
9176 | return !S.getLangOpts().CPlusPlus; |
9177 | } |
9178 | if (PointeeTy->isFunctionType()) { |
9179 | diagnoseArithmeticOnFunctionPointer(S, Loc, Operand); |
9180 | return !S.getLangOpts().CPlusPlus; |
9181 | } |
9182 | |
9183 | if (checkArithmeticIncompletePointerType(S, Loc, Operand)) return false; |
9184 | |
9185 | return true; |
9186 | } |
9187 | |
9188 | |
9189 | |
9190 | |
9191 | |
9192 | |
9193 | |
9194 | |
9195 | |
9196 | |
9197 | static bool checkArithmeticBinOpPointerOperands(Sema &S, SourceLocation Loc, |
9198 | Expr *LHSExpr, Expr *RHSExpr) { |
9199 | bool isLHSPointer = LHSExpr->getType()->isAnyPointerType(); |
9200 | bool isRHSPointer = RHSExpr->getType()->isAnyPointerType(); |
9201 | if (!isLHSPointer && !isRHSPointer) return true; |
9202 | |
9203 | QualType LHSPointeeTy, RHSPointeeTy; |
9204 | if (isLHSPointer) LHSPointeeTy = LHSExpr->getType()->getPointeeType(); |
9205 | if (isRHSPointer) RHSPointeeTy = RHSExpr->getType()->getPointeeType(); |
9206 | |
9207 | |
9208 | if (S.getLangOpts().OpenCL && isLHSPointer && isRHSPointer) { |
9209 | const PointerType *lhsPtr = LHSExpr->getType()->getAs<PointerType>(); |
9210 | const PointerType *rhsPtr = RHSExpr->getType()->getAs<PointerType>(); |
9211 | if (!lhsPtr->isAddressSpaceOverlapping(*rhsPtr)) { |
9212 | S.Diag(Loc, |
9213 | diag::err_typecheck_op_on_nonoverlapping_address_space_pointers) |
9214 | << LHSExpr->getType() << RHSExpr->getType() << 1 |
9215 | << LHSExpr->getSourceRange() << RHSExpr->getSourceRange(); |
9216 | return false; |
9217 | } |
9218 | } |
9219 | |
9220 | |
9221 | bool isLHSVoidPtr = isLHSPointer && LHSPointeeTy->isVoidType(); |
9222 | bool isRHSVoidPtr = isRHSPointer && RHSPointeeTy->isVoidType(); |
9223 | if (isLHSVoidPtr || isRHSVoidPtr) { |
9224 | if (!isRHSVoidPtr) diagnoseArithmeticOnVoidPointer(S, Loc, LHSExpr); |
9225 | else if (!isLHSVoidPtr) diagnoseArithmeticOnVoidPointer(S, Loc, RHSExpr); |
9226 | else diagnoseArithmeticOnTwoVoidPointers(S, Loc, LHSExpr, RHSExpr); |
9227 | |
9228 | return !S.getLangOpts().CPlusPlus; |
9229 | } |
9230 | |
9231 | bool isLHSFuncPtr = isLHSPointer && LHSPointeeTy->isFunctionType(); |
9232 | bool isRHSFuncPtr = isRHSPointer && RHSPointeeTy->isFunctionType(); |
9233 | if (isLHSFuncPtr || isRHSFuncPtr) { |
9234 | if (!isRHSFuncPtr) diagnoseArithmeticOnFunctionPointer(S, Loc, LHSExpr); |
9235 | else if (!isLHSFuncPtr) diagnoseArithmeticOnFunctionPointer(S, Loc, |
9236 | RHSExpr); |
9237 | else diagnoseArithmeticOnTwoFunctionPointers(S, Loc, LHSExpr, RHSExpr); |
9238 | |
9239 | return !S.getLangOpts().CPlusPlus; |
9240 | } |
9241 | |
9242 | if (isLHSPointer && checkArithmeticIncompletePointerType(S, Loc, LHSExpr)) |
9243 | return false; |
9244 | if (isRHSPointer && checkArithmeticIncompletePointerType(S, Loc, RHSExpr)) |
9245 | return false; |
9246 | |
9247 | return true; |
9248 | } |
9249 | |
9250 | |
9251 | |
9252 | static void diagnoseStringPlusInt(Sema &Self, SourceLocation OpLoc, |
9253 | Expr *LHSExpr, Expr *RHSExpr) { |
9254 | StringLiteral* StrExpr = dyn_cast<StringLiteral>(LHSExpr->IgnoreImpCasts()); |
9255 | Expr* IndexExpr = RHSExpr; |
9256 | if (!StrExpr) { |
9257 | StrExpr = dyn_cast<StringLiteral>(RHSExpr->IgnoreImpCasts()); |
9258 | IndexExpr = LHSExpr; |
9259 | } |
9260 | |
9261 | bool IsStringPlusInt = StrExpr && |
9262 | IndexExpr->getType()->isIntegralOrUnscopedEnumerationType(); |
9263 | if (!IsStringPlusInt || IndexExpr->isValueDependent()) |
9264 | return; |
9265 | |
9266 | SourceRange DiagRange(LHSExpr->getBeginLoc(), RHSExpr->getEndLoc()); |
9267 | Self.Diag(OpLoc, diag::warn_string_plus_int) |
9268 | << DiagRange << IndexExpr->IgnoreImpCasts()->getType(); |
9269 | |
9270 | |
9271 | if (IndexExpr == RHSExpr) { |
9272 | SourceLocation EndLoc = Self.getLocForEndOfToken(RHSExpr->getEndLoc()); |
9273 | Self.Diag(OpLoc, diag::note_string_plus_scalar_silence) |
9274 | << FixItHint::CreateInsertion(LHSExpr->getBeginLoc(), "&") |
9275 | << FixItHint::CreateReplacement(SourceRange(OpLoc), "[") |
9276 | << FixItHint::CreateInsertion(EndLoc, "]"); |
9277 | } else |
9278 | Self.Diag(OpLoc, diag::note_string_plus_scalar_silence); |
9279 | } |
9280 | |
9281 | |
9282 | static void diagnoseStringPlusChar(Sema &Self, SourceLocation OpLoc, |
9283 | Expr *LHSExpr, Expr *RHSExpr) { |
9284 | const Expr *StringRefExpr = LHSExpr; |
9285 | const CharacterLiteral *CharExpr = |
9286 | dyn_cast<CharacterLiteral>(RHSExpr->IgnoreImpCasts()); |
9287 | |
9288 | if (!CharExpr) { |
9289 | CharExpr = dyn_cast<CharacterLiteral>(LHSExpr->IgnoreImpCasts()); |
9290 | StringRefExpr = RHSExpr; |
9291 | } |
9292 | |
9293 | if (!CharExpr || !StringRefExpr) |
9294 | return; |
9295 | |
9296 | const QualType StringType = StringRefExpr->getType(); |
9297 | |
9298 | |
9299 | if (!StringType->isAnyPointerType()) |
9300 | return; |
9301 | |
9302 | |
9303 | if (!StringType->getPointeeType()->isAnyCharacterType()) |
9304 | return; |
9305 | |
9306 | ASTContext &Ctx = Self.getASTContext(); |
9307 | SourceRange DiagRange(LHSExpr->getBeginLoc(), RHSExpr->getEndLoc()); |
9308 | |
9309 | const QualType CharType = CharExpr->getType(); |
9310 | if (!CharType->isAnyCharacterType() && |
9311 | CharType->isIntegerType() && |
9312 | llvm::isUIntN(Ctx.getCharWidth(), CharExpr->getValue())) { |
9313 | Self.Diag(OpLoc, diag::warn_string_plus_char) |
9314 | << DiagRange << Ctx.CharTy; |
9315 | } else { |
9316 | Self.Diag(OpLoc, diag::warn_string_plus_char) |
9317 | << DiagRange << CharExpr->getType(); |
9318 | } |
9319 | |
9320 | |
9321 | if (isa<CharacterLiteral>(RHSExpr->IgnoreImpCasts())) { |
9322 | SourceLocation EndLoc = Self.getLocForEndOfToken(RHSExpr->getEndLoc()); |
9323 | Self.Diag(OpLoc, diag::note_string_plus_scalar_silence) |
9324 | << FixItHint::CreateInsertion(LHSExpr->getBeginLoc(), "&") |
9325 | << FixItHint::CreateReplacement(SourceRange(OpLoc), "[") |
9326 | << FixItHint::CreateInsertion(EndLoc, "]"); |
9327 | } else { |
9328 | Self.Diag(OpLoc, diag::note_string_plus_scalar_silence); |
9329 | } |
9330 | } |
9331 | |
9332 | |
9333 | static void diagnosePointerIncompatibility(Sema &S, SourceLocation Loc, |
9334 | Expr *LHSExpr, Expr *RHSExpr) { |
9335 | getType()->isAnyPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9335, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSExpr->getType()->isAnyPointerType()); |
9336 | getType()->isAnyPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9336, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHSExpr->getType()->isAnyPointerType()); |
9337 | S.Diag(Loc, diag::err_typecheck_sub_ptr_compatible) |
9338 | << LHSExpr->getType() << RHSExpr->getType() << LHSExpr->getSourceRange() |
9339 | << RHSExpr->getSourceRange(); |
9340 | } |
9341 | |
9342 | |
9343 | QualType Sema::CheckAdditionOperands(ExprResult &LHS, ExprResult &RHS, |
9344 | SourceLocation Loc, BinaryOperatorKind Opc, |
9345 | QualType* CompLHSTy) { |
9346 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
9347 | |
9348 | if (LHS.get()->getType()->isVectorType() || |
9349 | RHS.get()->getType()->isVectorType()) { |
9350 | QualType compType = CheckVectorOperands( |
9351 | LHS, RHS, Loc, CompLHSTy, |
9352 | ().AltiVec, |
9353 | ().ZVector); |
9354 | if (CompLHSTy) *CompLHSTy = compType; |
9355 | return compType; |
9356 | } |
9357 | |
9358 | QualType compType = UsualArithmeticConversions(LHS, RHS, CompLHSTy); |
9359 | if (LHS.isInvalid() || RHS.isInvalid()) |
9360 | return QualType(); |
9361 | |
9362 | |
9363 | if (Opc == BO_Add) { |
9364 | diagnoseStringPlusInt(*this, Loc, LHS.get(), RHS.get()); |
9365 | diagnoseStringPlusChar(*this, Loc, LHS.get(), RHS.get()); |
9366 | } |
9367 | |
9368 | |
9369 | if (!compType.isNull() && compType->isArithmeticType()) { |
9370 | if (CompLHSTy) *CompLHSTy = compType; |
9371 | return compType; |
9372 | } |
9373 | |
9374 | |
9375 | |
9376 | Expr *PExp = LHS.get(), *IExp = RHS.get(); |
9377 | |
9378 | bool isObjCPointer; |
9379 | if (PExp->getType()->isPointerType()) { |
9380 | isObjCPointer = false; |
9381 | } else if (PExp->getType()->isObjCObjectPointerType()) { |
9382 | isObjCPointer = true; |
9383 | } else { |
9384 | std::swap(PExp, IExp); |
9385 | if (PExp->getType()->isPointerType()) { |
9386 | isObjCPointer = false; |
9387 | } else if (PExp->getType()->isObjCObjectPointerType()) { |
9388 | isObjCPointer = true; |
9389 | } else { |
9390 | return InvalidOperands(Loc, LHS, RHS); |
9391 | } |
9392 | } |
9393 | getType()->isAnyPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9393, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(PExp->getType()->isAnyPointerType()); |
9394 | |
9395 | if (!IExp->getType()->isIntegerType()) |
9396 | return InvalidOperands(Loc, LHS, RHS); |
9397 | |
9398 | |
9399 | if (PExp->IgnoreParenCasts()->isNullPointerConstant( |
9400 | Context, Expr::NPC_ValueDependentIsNotNull)) { |
9401 | |
9402 | Expr::EvalResult KnownVal; |
9403 | if (!getLangOpts().CPlusPlus || |
9404 | (!IExp->isValueDependent() && |
9405 | (!IExp->EvaluateAsInt(KnownVal, Context) || |
9406 | KnownVal.Val.getInt() != 0))) { |
9407 | |
9408 | bool IsGNUIdiom = BinaryOperator::isNullPointerArithmeticExtension( |
9409 | Context, BO_Add, PExp, IExp); |
9410 | diagnoseArithmeticOnNullPointer(*this, Loc, PExp, IsGNUIdiom); |
9411 | } |
9412 | } |
9413 | |
9414 | if (!checkArithmeticOpPointerOperand(*this, Loc, PExp)) |
9415 | return QualType(); |
9416 | |
9417 | if (isObjCPointer && checkArithmeticOnObjCPointer(*this, Loc, PExp)) |
9418 | return QualType(); |
9419 | |
9420 | |
9421 | CheckArrayAccess(PExp, IExp); |
9422 | |
9423 | if (CompLHSTy) { |
9424 | QualType LHSTy = Context.isPromotableBitField(LHS.get()); |
9425 | if (LHSTy.isNull()) { |
9426 | LHSTy = LHS.get()->getType(); |
9427 | if (LHSTy->isPromotableIntegerType()) |
9428 | LHSTy = Context.getPromotedIntegerType(LHSTy); |
9429 | } |
9430 | *CompLHSTy = LHSTy; |
9431 | } |
9432 | |
9433 | return PExp->getType(); |
9434 | } |
9435 | |
9436 | |
9437 | QualType Sema::CheckSubtractionOperands(ExprResult &LHS, ExprResult &RHS, |
9438 | SourceLocation Loc, |
9439 | QualType* CompLHSTy) { |
9440 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
9441 | |
9442 | if (LHS.get()->getType()->isVectorType() || |
9443 | RHS.get()->getType()->isVectorType()) { |
9444 | QualType compType = CheckVectorOperands( |
9445 | LHS, RHS, Loc, CompLHSTy, |
9446 | ().AltiVec, |
9447 | ().ZVector); |
9448 | if (CompLHSTy) *CompLHSTy = compType; |
9449 | return compType; |
9450 | } |
9451 | |
9452 | QualType compType = UsualArithmeticConversions(LHS, RHS, CompLHSTy); |
9453 | if (LHS.isInvalid() || RHS.isInvalid()) |
9454 | return QualType(); |
9455 | |
9456 | |
9457 | |
9458 | |
9459 | if (!compType.isNull() && compType->isArithmeticType()) { |
9460 | if (CompLHSTy) *CompLHSTy = compType; |
9461 | return compType; |
9462 | } |
9463 | |
9464 | |
9465 | if (LHS.get()->getType()->isAnyPointerType()) { |
9466 | QualType lpointee = LHS.get()->getType()->getPointeeType(); |
9467 | |
9468 | |
9469 | if (LHS.get()->getType()->isObjCObjectPointerType() && |
9470 | checkArithmeticOnObjCPointer(*this, Loc, LHS.get())) |
9471 | return QualType(); |
9472 | |
9473 | |
9474 | if (RHS.get()->getType()->isIntegerType()) { |
9475 | |
9476 | |
9477 | |
9478 | if (LHS.get()->IgnoreParenCasts()->isNullPointerConstant(Context, |
9479 | Expr::NPC_ValueDependentIsNotNull)) { |
9480 | |
9481 | Expr::EvalResult KnownVal; |
9482 | if (!getLangOpts().CPlusPlus || |
9483 | (!RHS.get()->isValueDependent() && |
9484 | (!RHS.get()->EvaluateAsInt(KnownVal, Context) || |
9485 | KnownVal.Val.getInt() != 0))) { |
9486 | diagnoseArithmeticOnNullPointer(*this, Loc, LHS.get(), false); |
9487 | } |
9488 | } |
9489 | |
9490 | if (!checkArithmeticOpPointerOperand(*this, Loc, LHS.get())) |
9491 | return QualType(); |
9492 | |
9493 | |
9494 | CheckArrayAccess(LHS.get(), RHS.get(), , |
9495 | , ); |
9496 | |
9497 | if (CompLHSTy) *CompLHSTy = LHS.get()->getType(); |
9498 | return LHS.get()->getType(); |
9499 | } |
9500 | |
9501 | |
9502 | if (const PointerType *RHSPTy |
9503 | = RHS.get()->getType()->getAs<PointerType>()) { |
9504 | QualType rpointee = RHSPTy->getPointeeType(); |
9505 | |
9506 | if (getLangOpts().CPlusPlus) { |
9507 | |
9508 | if (!Context.hasSameUnqualifiedType(lpointee, rpointee)) { |
9509 | diagnosePointerIncompatibility(*this, Loc, LHS.get(), RHS.get()); |
9510 | } |
9511 | } else { |
9512 | |
9513 | if (!Context.typesAreCompatible( |
9514 | Context.getCanonicalType(lpointee).getUnqualifiedType(), |
9515 | Context.getCanonicalType(rpointee).getUnqualifiedType())) { |
9516 | diagnosePointerIncompatibility(*this, Loc, LHS.get(), RHS.get()); |
9517 | return QualType(); |
9518 | } |
9519 | } |
9520 | |
9521 | if (!checkArithmeticBinOpPointerOperands(*this, Loc, |
9522 | LHS.get(), RHS.get())) |
9523 | return QualType(); |
9524 | |
9525 | |
9526 | |
9527 | |
9528 | |
9529 | |
9530 | if (!rpointee->isVoidType() && !rpointee->isFunctionType()) { |
9531 | CharUnits ElementSize = Context.getTypeSizeInChars(rpointee); |
9532 | if (ElementSize.isZero()) { |
9533 | Diag(Loc,diag::warn_sub_ptr_zero_size_types) |
9534 | << rpointee.getUnqualifiedType() |
9535 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9536 | } |
9537 | } |
9538 | |
9539 | if (CompLHSTy) *CompLHSTy = LHS.get()->getType(); |
9540 | return Context.getPointerDiffType(); |
9541 | } |
9542 | } |
9543 | |
9544 | return InvalidOperands(Loc, LHS, RHS); |
9545 | } |
9546 | |
9547 | static bool isScopedEnumerationType(QualType T) { |
9548 | if (const EnumType *ET = T->getAs<EnumType>()) |
9549 | return ET->getDecl()->isScoped(); |
9550 | return false; |
9551 | } |
9552 | |
9553 | static void DiagnoseBadShiftValues(Sema& S, ExprResult &LHS, ExprResult &RHS, |
9554 | SourceLocation Loc, BinaryOperatorKind Opc, |
9555 | QualType LHSType) { |
9556 | |
9557 | |
9558 | if (S.getLangOpts().OpenCL) |
9559 | return; |
9560 | |
9561 | |
9562 | Expr::EvalResult RHSResult; |
9563 | if (RHS.get()->isValueDependent() || |
9564 | !RHS.get()->EvaluateAsInt(RHSResult, S.Context)) |
9565 | return; |
9566 | llvm::APSInt Right = RHSResult.Val.getInt(); |
9567 | |
9568 | if (Right.isNegative()) { |
9569 | S.DiagRuntimeBehavior(Loc, RHS.get(), |
9570 | S.PDiag(diag::warn_shift_negative) |
9571 | << RHS.get()->getSourceRange()); |
9572 | return; |
9573 | } |
9574 | llvm::APInt LeftBits(Right.getBitWidth(), |
9575 | S.Context.getTypeSize(LHS.get()->getType())); |
9576 | if (Right.uge(LeftBits)) { |
9577 | S.DiagRuntimeBehavior(Loc, RHS.get(), |
9578 | S.PDiag(diag::warn_shift_gt_typewidth) |
9579 | << RHS.get()->getSourceRange()); |
9580 | return; |
9581 | } |
9582 | if (Opc != BO_Shl) |
9583 | return; |
9584 | |
9585 | |
9586 | |
9587 | |
9588 | |
9589 | Expr::EvalResult LHSResult; |
9590 | if (LHS.get()->isValueDependent() || |
9591 | LHSType->hasUnsignedIntegerRepresentation() || |
9592 | !LHS.get()->EvaluateAsInt(LHSResult, S.Context)) |
9593 | return; |
9594 | llvm::APSInt Left = LHSResult.Val.getInt(); |
9595 | |
9596 | |
9597 | |
9598 | if (Left.isNegative() && !S.getLangOpts().isSignedOverflowDefined()) { |
9599 | S.DiagRuntimeBehavior(Loc, LHS.get(), |
9600 | S.PDiag(diag::warn_shift_lhs_negative) |
9601 | << LHS.get()->getSourceRange()); |
9602 | return; |
9603 | } |
9604 | |
9605 | llvm::APInt ResultBits = |
9606 | static_cast<llvm::APInt&>(Right) + Left.getMinSignedBits(); |
9607 | if (LeftBits.uge(ResultBits)) |
9608 | return; |
9609 | llvm::APSInt Result = Left.extend(ResultBits.getLimitedValue()); |
9610 | Result = Result.shl(Right); |
9611 | |
9612 | |
9613 | |
9614 | SmallString<40> HexResult; |
9615 | Result.toString(HexResult, 16, , ); |
9616 | |
9617 | |
9618 | |
9619 | |
9620 | |
9621 | if (LeftBits == ResultBits - 1) { |
9622 | S.Diag(Loc, diag::warn_shift_result_sets_sign_bit) |
9623 | << HexResult << LHSType |
9624 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9625 | return; |
9626 | } |
9627 | |
9628 | S.Diag(Loc, diag::warn_shift_result_gt_typewidth) |
9629 | << HexResult.str() << Result.getMinSignedBits() << LHSType |
9630 | << Left.getBitWidth() << LHS.get()->getSourceRange() |
9631 | << RHS.get()->getSourceRange(); |
9632 | } |
9633 | |
9634 | |
9635 | |
9636 | static QualType checkVectorShift(Sema &S, ExprResult &LHS, ExprResult &RHS, |
9637 | SourceLocation Loc, bool IsCompAssign) { |
9638 | |
9639 | if ((S.LangOpts.OpenCL || S.LangOpts.ZVector) && |
9640 | !LHS.get()->getType()->isVectorType()) { |
9641 | S.Diag(Loc, diag::err_shift_rhs_only_vector) |
9642 | << RHS.get()->getType() << LHS.get()->getType() |
9643 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9644 | return QualType(); |
9645 | } |
9646 | |
9647 | if (!IsCompAssign) { |
9648 | LHS = S.UsualUnaryConversions(LHS.get()); |
9649 | if (LHS.isInvalid()) return QualType(); |
9650 | } |
9651 | |
9652 | RHS = S.UsualUnaryConversions(RHS.get()); |
9653 | if (RHS.isInvalid()) return QualType(); |
9654 | |
9655 | QualType LHSType = LHS.get()->getType(); |
9656 | |
9657 | |
9658 | const VectorType *LHSVecTy = LHSType->getAs<VectorType>(); |
9659 | QualType LHSEleType = LHSVecTy ? LHSVecTy->getElementType() : LHSType; |
9660 | |
9661 | |
9662 | QualType RHSType = RHS.get()->getType(); |
9663 | const VectorType *RHSVecTy = RHSType->getAs<VectorType>(); |
9664 | QualType RHSEleType = RHSVecTy ? RHSVecTy->getElementType() : RHSType; |
9665 | |
9666 | |
9667 | if (!LHSEleType->isIntegerType()) { |
9668 | S.Diag(Loc, diag::err_typecheck_expect_int) |
9669 | << LHS.get()->getType() << LHS.get()->getSourceRange(); |
9670 | return QualType(); |
9671 | } |
9672 | |
9673 | if (!RHSEleType->isIntegerType()) { |
9674 | S.Diag(Loc, diag::err_typecheck_expect_int) |
9675 | << RHS.get()->getType() << RHS.get()->getSourceRange(); |
9676 | return QualType(); |
9677 | } |
9678 | |
9679 | if (!LHSVecTy) { |
9680 | assert(RHSVecTy); |
9681 | if (IsCompAssign) |
9682 | return RHSType; |
9683 | if (LHSEleType != RHSEleType) { |
9684 | LHS = S.ImpCastExprToType(LHS.get(),RHSEleType, CK_IntegralCast); |
9685 | LHSEleType = RHSEleType; |
9686 | } |
9687 | QualType VecTy = |
9688 | S.Context.getExtVectorType(LHSEleType, RHSVecTy->getNumElements()); |
9689 | LHS = S.ImpCastExprToType(LHS.get(), VecTy, CK_VectorSplat); |
9690 | LHSType = VecTy; |
9691 | } else if (RHSVecTy) { |
9692 | |
9693 | |
9694 | |
9695 | if (RHSVecTy->getNumElements() != LHSVecTy->getNumElements()) { |
9696 | S.Diag(Loc, diag::err_typecheck_vector_lengths_not_equal) |
9697 | << LHS.get()->getType() << RHS.get()->getType() |
9698 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9699 | return QualType(); |
9700 | } |
9701 | if (!S.LangOpts.OpenCL && !S.LangOpts.ZVector) { |
9702 | const BuiltinType *LHSBT = LHSEleType->getAs<clang::BuiltinType>(); |
9703 | const BuiltinType *RHSBT = RHSEleType->getAs<clang::BuiltinType>(); |
9704 | if (LHSBT != RHSBT && |
9705 | S.Context.getTypeSize(LHSBT) != S.Context.getTypeSize(RHSBT)) { |
9706 | S.Diag(Loc, diag::warn_typecheck_vector_element_sizes_not_equal) |
9707 | << LHS.get()->getType() << RHS.get()->getType() |
9708 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9709 | } |
9710 | } |
9711 | } else { |
9712 | |
9713 | QualType VecTy = |
9714 | S.Context.getExtVectorType(RHSEleType, LHSVecTy->getNumElements()); |
9715 | RHS = S.ImpCastExprToType(RHS.get(), VecTy, CK_VectorSplat); |
9716 | } |
9717 | |
9718 | return LHSType; |
9719 | } |
9720 | |
9721 | |
9722 | QualType Sema::CheckShiftOperands(ExprResult &LHS, ExprResult &RHS, |
9723 | SourceLocation Loc, BinaryOperatorKind Opc, |
9724 | bool IsCompAssign) { |
9725 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
9726 | |
9727 | |
9728 | if (LHS.get()->getType()->isVectorType() || |
9729 | RHS.get()->getType()->isVectorType()) { |
9730 | if (LangOpts.ZVector) { |
9731 | |
9732 | |
9733 | |
9734 | if (auto LHSVecType = LHS.get()->getType()->getAs<VectorType>()) |
9735 | if (LHSVecType->getVectorKind() == VectorType::AltiVecBool) |
9736 | return InvalidOperands(Loc, LHS, RHS); |
9737 | if (auto RHSVecType = RHS.get()->getType()->getAs<VectorType>()) |
9738 | if (RHSVecType->getVectorKind() == VectorType::AltiVecBool) |
9739 | return InvalidOperands(Loc, LHS, RHS); |
9740 | } |
9741 | return checkVectorShift(*this, LHS, RHS, Loc, IsCompAssign); |
9742 | } |
9743 | |
9744 | |
9745 | |
9746 | |
9747 | |
9748 | |
9749 | ExprResult OldLHS = LHS; |
9750 | LHS = UsualUnaryConversions(LHS.get()); |
9751 | if (LHS.isInvalid()) |
9752 | return QualType(); |
9753 | QualType LHSType = LHS.get()->getType(); |
9754 | if (IsCompAssign) LHS = OldLHS; |
9755 | |
9756 | |
9757 | RHS = UsualUnaryConversions(RHS.get()); |
9758 | if (RHS.isInvalid()) |
9759 | return QualType(); |
9760 | QualType RHSType = RHS.get()->getType(); |
9761 | |
9762 | |
9763 | if (!LHSType->hasIntegerRepresentation() || |
9764 | !RHSType->hasIntegerRepresentation()) |
9765 | return InvalidOperands(Loc, LHS, RHS); |
9766 | |
9767 | |
9768 | |
9769 | if (isScopedEnumerationType(LHSType) || |
9770 | isScopedEnumerationType(RHSType)) { |
9771 | return InvalidOperands(Loc, LHS, RHS); |
9772 | } |
9773 | |
9774 | DiagnoseBadShiftValues(*this, LHS, RHS, Loc, Opc, LHSType); |
9775 | |
9776 | |
9777 | return LHSType; |
9778 | } |
9779 | |
9780 | |
9781 | static void checkEnumComparison(Sema &S, SourceLocation Loc, Expr *LHS, |
9782 | Expr *RHS) { |
9783 | QualType LHSStrippedType = LHS->IgnoreParenImpCasts()->getType(); |
9784 | QualType RHSStrippedType = RHS->IgnoreParenImpCasts()->getType(); |
9785 | |
9786 | const EnumType *LHSEnumType = LHSStrippedType->getAs<EnumType>(); |
9787 | if (!LHSEnumType) |
9788 | return; |
9789 | const EnumType *RHSEnumType = RHSStrippedType->getAs<EnumType>(); |
9790 | if (!RHSEnumType) |
9791 | return; |
9792 | |
9793 | |
9794 | if (!LHSEnumType->getDecl()->getIdentifier() && |
9795 | !LHSEnumType->getDecl()->getTypedefNameForAnonDecl()) |
9796 | return; |
9797 | if (!RHSEnumType->getDecl()->getIdentifier() && |
9798 | !RHSEnumType->getDecl()->getTypedefNameForAnonDecl()) |
9799 | return; |
9800 | |
9801 | if (S.Context.hasSameUnqualifiedType(LHSStrippedType, RHSStrippedType)) |
9802 | return; |
9803 | |
9804 | S.Diag(Loc, diag::warn_comparison_of_mixed_enum_types) |
9805 | << LHSStrippedType << RHSStrippedType |
9806 | << LHS->getSourceRange() << RHS->getSourceRange(); |
9807 | } |
9808 | |
9809 | |
9810 | static void diagnoseDistinctPointerComparison(Sema &S, SourceLocation Loc, |
9811 | ExprResult &LHS, ExprResult &RHS, |
9812 | bool IsError) { |
9813 | S.Diag(Loc, IsError ? diag::err_typecheck_comparison_of_distinct_pointers |
9814 | : diag::ext_typecheck_comparison_of_distinct_pointers) |
9815 | << LHS.get()->getType() << RHS.get()->getType() |
9816 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9817 | } |
9818 | |
9819 | |
9820 | |
9821 | static bool convertPointersToCompositeType(Sema &S, SourceLocation Loc, |
9822 | ExprResult &LHS, ExprResult &RHS) { |
9823 | |
9824 | |
9825 | |
9826 | |
9827 | |
9828 | |
9829 | |
9830 | |
9831 | |
9832 | QualType LHSType = LHS.get()->getType(); |
9833 | QualType RHSType = RHS.get()->getType(); |
9834 | isPointerType() || RHSType->isPointerType() || LHSType->isMemberPointerType() || RHSType->isMemberPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9835, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSType->isPointerType() || RHSType->isPointerType() || |
9835 | isPointerType() || RHSType->isPointerType() || LHSType->isMemberPointerType() || RHSType->isMemberPointerType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 9835, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> LHSType->isMemberPointerType() || RHSType->isMemberPointerType()); |
9836 | |
9837 | QualType T = S.FindCompositePointerType(Loc, LHS, RHS); |
9838 | if (T.isNull()) { |
9839 | if ((LHSType->isPointerType() || LHSType->isMemberPointerType()) && |
9840 | (RHSType->isPointerType() || RHSType->isMemberPointerType())) |
9841 | diagnoseDistinctPointerComparison(S, Loc, LHS, RHS, ); |
9842 | else |
9843 | S.InvalidOperands(Loc, LHS, RHS); |
9844 | return true; |
9845 | } |
9846 | |
9847 | LHS = S.ImpCastExprToType(LHS.get(), T, CK_BitCast); |
9848 | RHS = S.ImpCastExprToType(RHS.get(), T, CK_BitCast); |
9849 | return false; |
9850 | } |
9851 | |
9852 | static void diagnoseFunctionPointerToVoidComparison(Sema &S, SourceLocation Loc, |
9853 | ExprResult &LHS, |
9854 | ExprResult &RHS, |
9855 | bool IsError) { |
9856 | S.Diag(Loc, IsError ? diag::err_typecheck_comparison_of_fptr_to_void |
9857 | : diag::ext_typecheck_comparison_of_fptr_to_void) |
9858 | << LHS.get()->getType() << RHS.get()->getType() |
9859 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
9860 | } |
9861 | |
9862 | static bool isObjCObjectLiteral(ExprResult &E) { |
9863 | switch (E.get()->IgnoreParenImpCasts()->getStmtClass()) { |
9864 | case Stmt::ObjCArrayLiteralClass: |
9865 | case Stmt::ObjCDictionaryLiteralClass: |
9866 | case Stmt::ObjCStringLiteralClass: |
9867 | case Stmt::ObjCBoxedExprClass: |
9868 | return true; |
9869 | default: |
9870 | |
9871 | return false; |
9872 | } |
9873 | } |
9874 | |
9875 | static bool hasIsEqualMethod(Sema &S, const Expr *LHS, const Expr *RHS) { |
9876 | const ObjCObjectPointerType *Type = |
9877 | LHS->getType()->getAs<ObjCObjectPointerType>(); |
9878 | |
9879 | |
9880 | if (!Type) |
9881 | return false; |
9882 | |
9883 | |
9884 | QualType InterfaceType = Type->getPointeeType(); |
9885 | |
9886 | |
9887 | if (!RHS->getType()->isObjCObjectPointerType()) |
9888 | return false; |
9889 | |
9890 | |
9891 | Selector IsEqualSel = S.NSAPIObj->getIsEqualSelector(); |
9892 | ObjCMethodDecl *Method = S.LookupMethodInObjectType(IsEqualSel, |
9893 | InterfaceType, |
9894 | ); |
9895 | if (!Method) { |
9896 | if (Type->isObjCIdType()) { |
9897 | |
9898 | Method = S.LookupInstanceMethodInGlobalPool(IsEqualSel, SourceRange(), |
9899 | ); |
9900 | } else { |
9901 | |
9902 | Method = S.LookupMethodInQualifiedType(IsEqualSel, Type, |
9903 | ); |
9904 | } |
9905 | } |
9906 | |
9907 | if (!Method) |
9908 | return false; |
9909 | |
9910 | QualType T = Method->parameters()[0]->getType(); |
9911 | if (!T->isObjCObjectPointerType()) |
9912 | return false; |
9913 | |
9914 | QualType R = Method->getReturnType(); |
9915 | if (!R->isScalarType()) |
9916 | return false; |
9917 | |
9918 | return true; |
9919 | } |
9920 | |
9921 | Sema::ObjCLiteralKind Sema::CheckLiteralKind(Expr *FromE) { |
9922 | FromE = FromE->IgnoreParenImpCasts(); |
9923 | switch (FromE->getStmtClass()) { |
9924 | default: |
9925 | break; |
9926 | case Stmt::ObjCStringLiteralClass: |
9927 | |
9928 | return LK_String; |
9929 | case Stmt::ObjCArrayLiteralClass: |
9930 | |
9931 | return LK_Array; |
9932 | case Stmt::ObjCDictionaryLiteralClass: |
9933 | |
9934 | return LK_Dictionary; |
9935 | case Stmt::BlockExprClass: |
9936 | return LK_Block; |
9937 | case Stmt::ObjCBoxedExprClass: { |
9938 | Expr *Inner = cast<ObjCBoxedExpr>(FromE)->getSubExpr()->IgnoreParens(); |
9939 | switch (Inner->getStmtClass()) { |
9940 | case Stmt::IntegerLiteralClass: |
9941 | case Stmt::FloatingLiteralClass: |
9942 | case Stmt::CharacterLiteralClass: |
9943 | case Stmt::ObjCBoolLiteralExprClass: |
9944 | case Stmt::CXXBoolLiteralExprClass: |
9945 | |
9946 | return LK_Numeric; |
9947 | case Stmt::ImplicitCastExprClass: { |
9948 | CastKind CK = cast<CastExpr>(Inner)->getCastKind(); |
9949 | |
9950 | if (CK == CK_IntegralToBoolean || CK == CK_IntegralCast) |
9951 | return LK_Numeric; |
9952 | break; |
9953 | } |
9954 | default: |
9955 | break; |
9956 | } |
9957 | return LK_Boxed; |
9958 | } |
9959 | } |
9960 | return LK_None; |
9961 | } |
9962 | |
9963 | static void diagnoseObjCLiteralComparison(Sema &S, SourceLocation Loc, |
9964 | ExprResult &LHS, ExprResult &RHS, |
9965 | BinaryOperator::Opcode Opc){ |
9966 | Expr *Literal; |
9967 | Expr *Other; |
9968 | if (isObjCObjectLiteral(LHS)) { |
9969 | Literal = LHS.get(); |
9970 | Other = RHS.get(); |
9971 | } else { |
9972 | Literal = RHS.get(); |
9973 | Other = LHS.get(); |
9974 | } |
9975 | |
9976 | |
9977 | Other = Other->IgnoreParenCasts(); |
9978 | if (Other->isNullPointerConstant(S.getASTContext(), |
9979 | Expr::NPC_ValueDependentIsNotNull)) |
9980 | return; |
9981 | |
9982 | |
9983 | |
9984 | |
9985 | Sema::ObjCLiteralKind LiteralKind = S.CheckLiteralKind(Literal); |
9986 | assert(LiteralKind != Sema::LK_Block); |
9987 | if (LiteralKind == Sema::LK_None) { |
9988 | llvm_unreachable("Unknown Objective-C object literal kind"); |
9989 | } |
9990 | |
9991 | if (LiteralKind == Sema::LK_String) |
9992 | S.Diag(Loc, diag::warn_objc_string_literal_comparison) |
9993 | << Literal->getSourceRange(); |
9994 | else |
9995 | S.Diag(Loc, diag::warn_objc_literal_comparison) |
9996 | << LiteralKind << Literal->getSourceRange(); |
9997 | |
9998 | if (BinaryOperator::isEqualityOp(Opc) && |
9999 | hasIsEqualMethod(S, LHS.get(), RHS.get())) { |
10000 | SourceLocation Start = LHS.get()->getBeginLoc(); |
10001 | SourceLocation End = S.getLocForEndOfToken(RHS.get()->getEndLoc()); |
10002 | CharSourceRange OpRange = |
10003 | CharSourceRange::getCharRange(Loc, S.getLocForEndOfToken(Loc)); |
10004 | |
10005 | S.Diag(Loc, diag::note_objc_literal_comparison_isequal) |
10006 | << FixItHint::CreateInsertion(Start, Opc == BO_EQ ? "[" : "![") |
10007 | << FixItHint::CreateReplacement(OpRange, " isEqual:") |
10008 | << FixItHint::CreateInsertion(End, "]"); |
10009 | } |
10010 | } |
10011 | |
10012 | |
10013 | static void diagnoseLogicalNotOnLHSofCheck(Sema &S, ExprResult &LHS, |
10014 | ExprResult &RHS, SourceLocation Loc, |
10015 | BinaryOperatorKind Opc) { |
10016 | |
10017 | UnaryOperator *UO = dyn_cast<UnaryOperator>(LHS.get()->IgnoreImpCasts()); |
10018 | if (!UO || UO->getOpcode() != UO_LNot) return; |
10019 | |
10020 | |
10021 | if (RHS.get()->isKnownToHaveBooleanValue()) return; |
10022 | |
10023 | |
10024 | Expr *SubExpr = UO->getSubExpr()->IgnoreImpCasts(); |
10025 | if (SubExpr->isKnownToHaveBooleanValue()) return; |
10026 | |
10027 | |
10028 | bool IsBitwiseOp = Opc == BO_And || Opc == BO_Or || Opc == BO_Xor; |
10029 | S.Diag(UO->getOperatorLoc(), diag::warn_logical_not_on_lhs_of_check) |
10030 | << Loc << IsBitwiseOp; |
10031 | |
10032 | |
10033 | SourceLocation FirstOpen = SubExpr->getBeginLoc(); |
10034 | SourceLocation FirstClose = RHS.get()->getEndLoc(); |
10035 | FirstClose = S.getLocForEndOfToken(FirstClose); |
10036 | if (FirstClose.isInvalid()) |
10037 | FirstOpen = SourceLocation(); |
10038 | S.Diag(UO->getOperatorLoc(), diag::note_logical_not_fix) |
10039 | << IsBitwiseOp |
10040 | << FixItHint::CreateInsertion(FirstOpen, "(") |
10041 | << FixItHint::CreateInsertion(FirstClose, ")"); |
10042 | |
10043 | |
10044 | SourceLocation SecondOpen = LHS.get()->getBeginLoc(); |
10045 | SourceLocation SecondClose = LHS.get()->getEndLoc(); |
10046 | SecondClose = S.getLocForEndOfToken(SecondClose); |
10047 | if (SecondClose.isInvalid()) |
10048 | SecondOpen = SourceLocation(); |
10049 | S.Diag(UO->getOperatorLoc(), diag::note_logical_not_silence_with_parens) |
10050 | << FixItHint::CreateInsertion(SecondOpen, "(") |
10051 | << FixItHint::CreateInsertion(SecondClose, ")"); |
10052 | } |
10053 | |
10054 | |
10055 | |
10056 | static ValueDecl *getCompareDecl(Expr *E) { |
10057 | if (DeclRefExpr *DR = dyn_cast<DeclRefExpr>(E)) |
10058 | return DR->getDecl(); |
10059 | if (ObjCIvarRefExpr *Ivar = dyn_cast<ObjCIvarRefExpr>(E)) { |
10060 | if (Ivar->isFreeIvar()) |
10061 | return Ivar->getDecl(); |
10062 | } |
10063 | if (MemberExpr *Mem = dyn_cast<MemberExpr>(E)) { |
10064 | if (Mem->isImplicitAccess()) |
10065 | return Mem->getMemberDecl(); |
10066 | } |
10067 | return nullptr; |
10068 | } |
10069 | |
10070 | |
10071 | static void diagnoseTautologicalComparison(Sema &S, SourceLocation Loc, |
10072 | Expr *LHS, Expr *RHS, |
10073 | BinaryOperatorKind Opc) { |
10074 | Expr *LHSStripped = LHS->IgnoreParenImpCasts(); |
10075 | Expr *RHSStripped = RHS->IgnoreParenImpCasts(); |
10076 | |
10077 | QualType LHSType = LHS->getType(); |
10078 | QualType RHSType = RHS->getType(); |
10079 | if (LHSType->hasFloatingRepresentation() || |
10080 | (LHSType->isBlockPointerType() && !BinaryOperator::isEqualityOp(Opc)) || |
10081 | LHS->getBeginLoc().isMacroID() || RHS->getBeginLoc().isMacroID() || |
10082 | S.inTemplateInstantiation()) |
10083 | return; |
10084 | |
10085 | |
10086 | |
10087 | if (Opc == BO_Cmp && LHSType->isArrayType() && RHSType->isArrayType()) |
10088 | return; |
10089 | |
10090 | |
10091 | |
10092 | |
10093 | |
10094 | |
10095 | |
10096 | |
10097 | |
10098 | |
10099 | |
10100 | ValueDecl *DL = getCompareDecl(LHSStripped); |
10101 | ValueDecl *DR = getCompareDecl(RHSStripped); |
10102 | if (DL && DR && declaresSameEntity(DL, DR)) { |
10103 | StringRef Result; |
10104 | switch (Opc) { |
10105 | case BO_EQ: case BO_LE: case BO_GE: |
10106 | Result = "true"; |
10107 | break; |
10108 | case BO_NE: case BO_LT: case BO_GT: |
10109 | Result = "false"; |
10110 | break; |
10111 | case BO_Cmp: |
10112 | Result = "'std::strong_ordering::equal'"; |
10113 | break; |
10114 | default: |
10115 | break; |
10116 | } |
10117 | S.DiagRuntimeBehavior(Loc, nullptr, |
10118 | S.PDiag(diag::warn_comparison_always) |
10119 | << 0 << !Result.empty() |
10120 | << Result); |
10121 | } else if (DL && DR && |
10122 | DL->getType()->isArrayType() && DR->getType()->isArrayType() && |
10123 | !DL->isWeak() && !DR->isWeak()) { |
10124 | |
10125 | StringRef Result; |
10126 | switch(Opc) { |
10127 | case BO_EQ: |
10128 | Result = "false"; |
10129 | break; |
10130 | case BO_NE: |
10131 | Result = "true"; |
10132 | break; |
10133 | default: |
10134 | |
10135 | break; |
10136 | } |
10137 | S.DiagRuntimeBehavior(Loc, nullptr, |
10138 | S.PDiag(diag::warn_comparison_always) |
10139 | << 1 |
10140 | << !Result.empty() << Result); |
10141 | } |
10142 | |
10143 | if (isa<CastExpr>(LHSStripped)) |
10144 | LHSStripped = LHSStripped->IgnoreParenCasts(); |
10145 | if (isa<CastExpr>(RHSStripped)) |
10146 | RHSStripped = RHSStripped->IgnoreParenCasts(); |
10147 | |
10148 | |
10149 | |
10150 | Expr *LiteralString = nullptr; |
10151 | Expr *LiteralStringStripped = nullptr; |
10152 | if ((isa<StringLiteral>(LHSStripped) || isa<ObjCEncodeExpr>(LHSStripped)) && |
10153 | !RHSStripped->isNullPointerConstant(S.Context, |
10154 | Expr::NPC_ValueDependentIsNull)) { |
10155 | LiteralString = LHS; |
10156 | LiteralStringStripped = LHSStripped; |
10157 | } else if ((isa<StringLiteral>(RHSStripped) || |
10158 | isa<ObjCEncodeExpr>(RHSStripped)) && |
10159 | !LHSStripped->isNullPointerConstant(S.Context, |
10160 | Expr::NPC_ValueDependentIsNull)) { |
10161 | LiteralString = RHS; |
10162 | LiteralStringStripped = RHSStripped; |
10163 | } |
10164 | |
10165 | if (LiteralString) { |
10166 | S.DiagRuntimeBehavior(Loc, nullptr, |
10167 | S.PDiag(diag::warn_stringcompare) |
10168 | << isa<ObjCEncodeExpr>(LiteralStringStripped) |
10169 | << LiteralString->getSourceRange()); |
10170 | } |
10171 | } |
10172 | |
10173 | static ImplicitConversionKind castKindToImplicitConversionKind(CastKind CK) { |
10174 | switch (CK) { |
10175 | default: { |
10176 | #ifndef NDEBUG |
10177 | llvm::errs() << "unhandled cast kind: " << CastExpr::getCastKindName(CK) |
10178 | << "\n"; |
10179 | #endif |
10180 | llvm_unreachable("unhandled cast kind"); |
10181 | } |
10182 | case CK_UserDefinedConversion: |
10183 | return ICK_Identity; |
10184 | case CK_LValueToRValue: |
10185 | return ICK_Lvalue_To_Rvalue; |
10186 | case CK_ArrayToPointerDecay: |
10187 | return ICK_Array_To_Pointer; |
10188 | case CK_FunctionToPointerDecay: |
10189 | return ICK_Function_To_Pointer; |
10190 | case CK_IntegralCast: |
10191 | return ICK_Integral_Conversion; |
10192 | case CK_FloatingCast: |
10193 | return ICK_Floating_Conversion; |
10194 | case CK_IntegralToFloating: |
10195 | case CK_FloatingToIntegral: |
10196 | return ICK_Floating_Integral; |
10197 | case CK_IntegralComplexCast: |
10198 | case CK_FloatingComplexCast: |
10199 | case CK_FloatingComplexToIntegralComplex: |
10200 | case CK_IntegralComplexToFloatingComplex: |
10201 | return ICK_Complex_Conversion; |
10202 | case CK_FloatingComplexToReal: |
10203 | case CK_FloatingRealToComplex: |
10204 | case CK_IntegralComplexToReal: |
10205 | case CK_IntegralRealToComplex: |
10206 | return ICK_Complex_Real; |
10207 | } |
10208 | } |
10209 | |
10210 | static bool checkThreeWayNarrowingConversion(Sema &S, QualType ToType, Expr *E, |
10211 | QualType FromType, |
10212 | SourceLocation Loc) { |
10213 | |
10214 | StandardConversionSequence SCS; |
10215 | SCS.setAsIdentityConversion(); |
10216 | SCS.setToType(0, FromType); |
10217 | SCS.setToType(1, ToType); |
10218 | if (const auto *ICE = dyn_cast<ImplicitCastExpr>(E)) |
10219 | SCS.Second = castKindToImplicitConversionKind(ICE->getCastKind()); |
10220 | |
10221 | APValue PreNarrowingValue; |
10222 | QualType PreNarrowingType; |
10223 | switch (SCS.getNarrowingKind(S.Context, E, PreNarrowingValue, |
10224 | PreNarrowingType, |
10225 | true)) { |
10226 | case NK_Dependent_Narrowing: |
10227 | |
10228 | |
10229 | case NK_Not_Narrowing: |
10230 | return false; |
10231 | |
10232 | case NK_Constant_Narrowing: |
10233 | |
10234 | |
10235 | S.Diag(E->getBeginLoc(), diag::err_spaceship_argument_narrowing) |
10236 | << 1 |
10237 | << PreNarrowingValue.getAsString(S.Context, PreNarrowingType) << ToType; |
10238 | return true; |
10239 | |
10240 | case NK_Variable_Narrowing: |
10241 | |
10242 | |
10243 | case NK_Type_Narrowing: |
10244 | S.Diag(E->getBeginLoc(), diag::err_spaceship_argument_narrowing) |
10245 | << 0 << FromType << ToType; |
10246 | |
10247 | |
10248 | return true; |
10249 | } |
10250 | llvm_unreachable("unhandled case in switch"); |
10251 | } |
10252 | |
10253 | static QualType checkArithmeticOrEnumeralThreeWayCompare(Sema &S, |
10254 | ExprResult &LHS, |
10255 | ExprResult &RHS, |
10256 | SourceLocation Loc) { |
10257 | using CCT = ComparisonCategoryType; |
10258 | |
10259 | QualType LHSType = LHS.get()->getType(); |
10260 | QualType RHSType = RHS.get()->getType(); |
10261 | |
10262 | |
10263 | |
10264 | ExprResult LHSStripped = LHS.get()->IgnoreParenImpCasts(); |
10265 | ExprResult RHSStripped = RHS.get()->IgnoreParenImpCasts(); |
10266 | QualType LHSStrippedType = LHSStripped.get()->getType(); |
10267 | QualType RHSStrippedType = RHSStripped.get()->getType(); |
10268 | |
10269 | |
10270 | |
10271 | if (LHSStrippedType->isBooleanType() != RHSStrippedType->isBooleanType()) { |
10272 | S.InvalidOperands(Loc, LHSStripped, RHSStripped); |
10273 | return QualType(); |
10274 | } |
10275 | |
10276 | int = (int)LHSStrippedType->isEnumeralType() + |
10277 | RHSStrippedType->isEnumeralType(); |
10278 | if (NumEnumArgs == 1) { |
10279 | bool LHSIsEnum = LHSStrippedType->isEnumeralType(); |
10280 | QualType OtherTy = LHSIsEnum ? RHSStrippedType : LHSStrippedType; |
10281 | if (OtherTy->hasFloatingRepresentation()) { |
10282 | S.InvalidOperands(Loc, LHSStripped, RHSStripped); |
10283 | return QualType(); |
10284 | } |
10285 | } |
10286 | if (NumEnumArgs == 2) { |
10287 | |
10288 | |
10289 | |
10290 | if (!S.Context.hasSameUnqualifiedType(LHSStrippedType, RHSStrippedType)) { |
10291 | S.InvalidOperands(Loc, LHS, RHS); |
10292 | return QualType(); |
10293 | } |
10294 | QualType IntType = |
10295 | LHSStrippedType->getAs<EnumType>()->getDecl()->getIntegerType(); |
10296 | isArithmeticType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10296, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(IntType->isArithmeticType()); |
10297 | |
10298 | |
10299 | |
10300 | |
10301 | if (IntType->isPromotableIntegerType()) |
10302 | IntType = S.Context.getPromotedIntegerType(IntType); |
10303 | |
10304 | LHS = S.ImpCastExprToType(LHS.get(), IntType, CK_IntegralCast); |
10305 | RHS = S.ImpCastExprToType(RHS.get(), IntType, CK_IntegralCast); |
10306 | LHSType = RHSType = IntType; |
10307 | } |
10308 | |
10309 | |
10310 | |
10311 | QualType Type = S.UsualArithmeticConversions(LHS, RHS); |
10312 | if (LHS.isInvalid() || RHS.isInvalid()) |
10313 | return QualType(); |
10314 | if (Type.isNull()) |
10315 | return S.InvalidOperands(Loc, LHS, RHS); |
10316 | isArithmeticType() || Type->isEnumeralType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10316, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Type->isArithmeticType() || Type->isEnumeralType()); |
10317 | |
10318 | bool HasNarrowing = checkThreeWayNarrowingConversion( |
10319 | S, Type, LHS.get(), LHSType, LHS.get()->getBeginLoc()); |
10320 | HasNarrowing |= checkThreeWayNarrowingConversion(S, Type, RHS.get(), RHSType, |
10321 | RHS.get()->getBeginLoc()); |
10322 | if (HasNarrowing) |
10323 | return QualType(); |
10324 | |
10325 | has not been set") ? static_cast (0) . __assert_fail ("!Type.isNull() && \"composite type for <=> has not been set\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10325, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Type.isNull() && "composite type for <=> has not been set"); |
10326 | |
10327 | auto TypeKind = [&]() { |
10328 | if (const ComplexType *CT = Type->getAs<ComplexType>()) { |
10329 | if (CT->getElementType()->hasFloatingRepresentation()) |
10330 | return CCT::WeakEquality; |
10331 | return CCT::StrongEquality; |
10332 | } |
10333 | if (Type->isIntegralOrEnumerationType()) |
10334 | return CCT::StrongOrdering; |
10335 | if (Type->hasFloatingRepresentation()) |
10336 | return CCT::PartialOrdering; |
10337 | llvm_unreachable("other types are unimplemented"); |
10338 | }(); |
10339 | |
10340 | return S.CheckComparisonCategoryType(TypeKind, Loc); |
10341 | } |
10342 | |
10343 | static QualType checkArithmeticOrEnumeralCompare(Sema &S, ExprResult &LHS, |
10344 | ExprResult &RHS, |
10345 | SourceLocation Loc, |
10346 | BinaryOperatorKind Opc) { |
10347 | if (Opc == BO_Cmp) |
10348 | return checkArithmeticOrEnumeralThreeWayCompare(S, LHS, RHS, Loc); |
10349 | |
10350 | |
10351 | QualType Type = S.UsualArithmeticConversions(LHS, RHS); |
10352 | if (LHS.isInvalid() || RHS.isInvalid()) |
10353 | return QualType(); |
10354 | if (Type.isNull()) |
10355 | return S.InvalidOperands(Loc, LHS, RHS); |
10356 | isArithmeticType() || Type->isEnumeralType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10356, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Type->isArithmeticType() || Type->isEnumeralType()); |
10357 | |
10358 | checkEnumComparison(S, Loc, LHS.get(), RHS.get()); |
10359 | |
10360 | if (Type->isAnyComplexType() && BinaryOperator::isRelationalOp(Opc)) |
10361 | return S.InvalidOperands(Loc, LHS, RHS); |
10362 | |
10363 | |
10364 | if (Type->hasFloatingRepresentation() && BinaryOperator::isEqualityOp(Opc)) |
10365 | S.CheckFloatComparison(Loc, LHS.get(), RHS.get()); |
10366 | |
10367 | |
10368 | return S.Context.getLogicalOperationType(); |
10369 | } |
10370 | |
10371 | |
10372 | QualType Sema::CheckCompareOperands(ExprResult &LHS, ExprResult &RHS, |
10373 | SourceLocation Loc, |
10374 | BinaryOperatorKind Opc) { |
10375 | bool IsRelational = BinaryOperator::isRelationalOp(Opc); |
10376 | bool IsThreeWay = Opc == BO_Cmp; |
10377 | auto IsAnyPointerType = [](ExprResult E) { |
10378 | QualType Ty = E.get()->getType(); |
10379 | return Ty->isPointerType() || Ty->isMemberPointerType(); |
10380 | }; |
10381 | |
10382 | |
10383 | |
10384 | |
10385 | |
10386 | |
10387 | if (!IsThreeWay || IsAnyPointerType(LHS) || IsAnyPointerType(RHS)) { |
10388 | LHS = DefaultFunctionArrayLvalueConversion(LHS.get()); |
10389 | if (LHS.isInvalid()) |
10390 | return QualType(); |
10391 | RHS = DefaultFunctionArrayLvalueConversion(RHS.get()); |
10392 | if (RHS.isInvalid()) |
10393 | return QualType(); |
10394 | } else { |
10395 | LHS = DefaultLvalueConversion(LHS.get()); |
10396 | if (LHS.isInvalid()) |
10397 | return QualType(); |
10398 | RHS = DefaultLvalueConversion(RHS.get()); |
10399 | if (RHS.isInvalid()) |
10400 | return QualType(); |
10401 | } |
10402 | |
10403 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
10404 | |
10405 | |
10406 | if (LHS.get()->getType()->isVectorType() || |
10407 | RHS.get()->getType()->isVectorType()) |
10408 | return CheckVectorCompareOperands(LHS, RHS, Loc, Opc); |
10409 | |
10410 | diagnoseLogicalNotOnLHSofCheck(*this, LHS, RHS, Loc, Opc); |
10411 | diagnoseTautologicalComparison(*this, Loc, LHS.get(), RHS.get(), Opc); |
10412 | |
10413 | QualType LHSType = LHS.get()->getType(); |
10414 | QualType RHSType = RHS.get()->getType(); |
10415 | if ((LHSType->isArithmeticType() || LHSType->isEnumeralType()) && |
10416 | (RHSType->isArithmeticType() || RHSType->isEnumeralType())) |
10417 | return checkArithmeticOrEnumeralCompare(*this, LHS, RHS, Loc, Opc); |
10418 | |
10419 | const Expr::NullPointerConstantKind LHSNullKind = |
10420 | LHS.get()->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNull); |
10421 | const Expr::NullPointerConstantKind RHSNullKind = |
10422 | RHS.get()->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNull); |
10423 | bool LHSIsNull = LHSNullKind != Expr::NPCK_NotNull; |
10424 | bool RHSIsNull = RHSNullKind != Expr::NPCK_NotNull; |
10425 | |
10426 | auto computeResultTy = [&]() { |
10427 | if (Opc != BO_Cmp) |
10428 | return Context.getLogicalOperationType(); |
10429 | assert(getLangOpts().CPlusPlus); |
10430 | getType(), RHS.get()->getType())", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10430, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Context.hasSameType(LHS.get()->getType(), RHS.get()->getType())); |
10431 | |
10432 | QualType CompositeTy = LHS.get()->getType(); |
10433 | isReferenceType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10433, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!CompositeTy->isReferenceType()); |
10434 | |
10435 | auto buildResultTy = [&](ComparisonCategoryType Kind) { |
10436 | return CheckComparisonCategoryType(Kind, Loc); |
10437 | }; |
10438 | |
10439 | |
10440 | |
10441 | |
10442 | if (CompositeTy->isFunctionPointerType() || |
10443 | CompositeTy->isMemberPointerType() || CompositeTy->isNullPtrType()) |
10444 | |
10445 | |
10446 | |
10447 | return buildResultTy(ComparisonCategoryType::StrongEquality); |
10448 | |
10449 | |
10450 | |
10451 | if (CompositeTy->isPointerType()) { |
10452 | |
10453 | |
10454 | if (LHSIsNull != RHSIsNull) |
10455 | return buildResultTy(ComparisonCategoryType::StrongEquality); |
10456 | return buildResultTy(ComparisonCategoryType::StrongOrdering); |
10457 | } |
10458 | |
10459 | |
10460 | return InvalidOperands(Loc, LHS, RHS); |
10461 | }; |
10462 | |
10463 | |
10464 | if (!IsRelational && LHSIsNull != RHSIsNull) { |
10465 | bool IsEquality = Opc == BO_EQ; |
10466 | if (RHSIsNull) |
10467 | DiagnoseAlwaysNonNullPointer(LHS.get(), RHSNullKind, IsEquality, |
10468 | RHS.get()->getSourceRange()); |
10469 | else |
10470 | DiagnoseAlwaysNonNullPointer(RHS.get(), LHSNullKind, IsEquality, |
10471 | LHS.get()->getSourceRange()); |
10472 | } |
10473 | |
10474 | if ((LHSType->isIntegerType() && !LHSIsNull) || |
10475 | (RHSType->isIntegerType() && !RHSIsNull)) { |
10476 | |
10477 | |
10478 | } else if (getLangOpts().CPlusPlus) { |
10479 | |
10480 | |
10481 | |
10482 | |
10483 | if (!IsRelational && |
10484 | ((LHSType->isFunctionPointerType() && RHSType->isVoidPointerType()) || |
10485 | (RHSType->isFunctionPointerType() && LHSType->isVoidPointerType()))) { |
10486 | |
10487 | |
10488 | |
10489 | diagnoseFunctionPointerToVoidComparison( |
10490 | *this, Loc, LHS, RHS, (bool)isSFINAEContext()); |
10491 | |
10492 | if (isSFINAEContext()) |
10493 | return QualType(); |
10494 | |
10495 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_BitCast); |
10496 | return computeResultTy(); |
10497 | } |
10498 | |
10499 | |
10500 | |
10501 | |
10502 | |
10503 | |
10504 | |
10505 | |
10506 | |
10507 | |
10508 | if ((int)LHSType->isPointerType() + (int)RHSType->isPointerType() >= |
10509 | (IsRelational ? 2 : 1) && |
10510 | (!LangOpts.ObjCAutoRefCount || !(LHSType->isObjCObjectPointerType() || |
10511 | RHSType->isObjCObjectPointerType()))) { |
10512 | if (convertPointersToCompositeType(*this, Loc, LHS, RHS)) |
10513 | return QualType(); |
10514 | return computeResultTy(); |
10515 | } |
10516 | } else if (LHSType->isPointerType() && |
10517 | RHSType->isPointerType()) { |
10518 | |
10519 | |
10520 | QualType LCanPointeeTy = |
10521 | LHSType->castAs<PointerType>()->getPointeeType().getCanonicalType(); |
10522 | QualType RCanPointeeTy = |
10523 | RHSType->castAs<PointerType>()->getPointeeType().getCanonicalType(); |
10524 | |
10525 | |
10526 | if (Context.typesAreCompatible(LCanPointeeTy.getUnqualifiedType(), |
10527 | RCanPointeeTy.getUnqualifiedType())) { |
10528 | |
10529 | if (IsRelational && LCanPointeeTy->isFunctionType()) { |
10530 | Diag(Loc, diag::ext_typecheck_ordered_comparison_of_function_pointers) |
10531 | << LHSType << RHSType << LHS.get()->getSourceRange() |
10532 | << RHS.get()->getSourceRange(); |
10533 | } |
10534 | } else if (!IsRelational && |
10535 | (LCanPointeeTy->isVoidType() || RCanPointeeTy->isVoidType())) { |
10536 | |
10537 | if ((LCanPointeeTy->isFunctionType() || RCanPointeeTy->isFunctionType()) |
10538 | && !LHSIsNull && !RHSIsNull) |
10539 | diagnoseFunctionPointerToVoidComparison(*this, Loc, LHS, RHS, |
10540 | ); |
10541 | } else { |
10542 | |
10543 | diagnoseDistinctPointerComparison(*this, Loc, LHS, RHS, ); |
10544 | } |
10545 | if (LCanPointeeTy != RCanPointeeTy) { |
10546 | |
10547 | if (getLangOpts().OpenCL && !LHSIsNull && !RHSIsNull) { |
10548 | const PointerType *LHSPtr = LHSType->getAs<PointerType>(); |
10549 | if (!LHSPtr->isAddressSpaceOverlapping(*RHSType->getAs<PointerType>())) { |
10550 | Diag(Loc, |
10551 | diag::err_typecheck_op_on_nonoverlapping_address_space_pointers) |
10552 | << LHSType << RHSType << 0 |
10553 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); |
10554 | } |
10555 | } |
10556 | LangAS AddrSpaceL = LCanPointeeTy.getAddressSpace(); |
10557 | LangAS AddrSpaceR = RCanPointeeTy.getAddressSpace(); |
10558 | CastKind Kind = AddrSpaceL != AddrSpaceR ? CK_AddressSpaceConversion |
10559 | : CK_BitCast; |
10560 | if (LHSIsNull && !RHSIsNull) |
10561 | LHS = ImpCastExprToType(LHS.get(), RHSType, Kind); |
10562 | else |
10563 | RHS = ImpCastExprToType(RHS.get(), LHSType, Kind); |
10564 | } |
10565 | return computeResultTy(); |
10566 | } |
10567 | |
10568 | if (getLangOpts().CPlusPlus) { |
10569 | |
10570 | |
10571 | |
10572 | if (!IsRelational && LHSIsNull && RHSIsNull) { |
10573 | if (LHSType->isNullPtrType()) { |
10574 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_NullToPointer); |
10575 | return computeResultTy(); |
10576 | } |
10577 | if (RHSType->isNullPtrType()) { |
10578 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_NullToPointer); |
10579 | return computeResultTy(); |
10580 | } |
10581 | } |
10582 | |
10583 | |
10584 | |
10585 | if (!IsRelational && RHSType->isNullPtrType() && |
10586 | (LHSType->isObjCObjectPointerType() || LHSType->isBlockPointerType())) { |
10587 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_NullToPointer); |
10588 | return computeResultTy(); |
10589 | } |
10590 | if (!IsRelational && LHSType->isNullPtrType() && |
10591 | (RHSType->isObjCObjectPointerType() || RHSType->isBlockPointerType())) { |
10592 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_NullToPointer); |
10593 | return computeResultTy(); |
10594 | } |
10595 | |
10596 | if (IsRelational && |
10597 | ((LHSType->isNullPtrType() && RHSType->isPointerType()) || |
10598 | (RHSType->isNullPtrType() && LHSType->isPointerType()))) { |
10599 | |
10600 | |
10601 | |
10602 | |
10603 | |
10604 | DeclContext *DC = CurContext; |
10605 | if (isa<FunctionDecl>(DC)) |
10606 | DC = DC->getParent(); |
10607 | if (auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(DC)) { |
10608 | if (CTSD->isInStdNamespace() && |
10609 | llvm::StringSwitch<bool>(CTSD->getName()) |
10610 | .Cases("less", "less_equal", "greater", "greater_equal", true) |
10611 | .Default(false)) { |
10612 | if (RHSType->isNullPtrType()) |
10613 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_NullToPointer); |
10614 | else |
10615 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_NullToPointer); |
10616 | return computeResultTy(); |
10617 | } |
10618 | } |
10619 | } |
10620 | |
10621 | |
10622 | |
10623 | |
10624 | if (!IsRelational && |
10625 | (LHSType->isMemberPointerType() || RHSType->isMemberPointerType())) { |
10626 | if (convertPointersToCompositeType(*this, Loc, LHS, RHS)) |
10627 | return QualType(); |
10628 | else |
10629 | return computeResultTy(); |
10630 | } |
10631 | } |
10632 | |
10633 | |
10634 | if (!IsRelational && LHSType->isBlockPointerType() && |
10635 | RHSType->isBlockPointerType()) { |
10636 | QualType lpointee = LHSType->castAs<BlockPointerType>()->getPointeeType(); |
10637 | QualType rpointee = RHSType->castAs<BlockPointerType>()->getPointeeType(); |
10638 | |
10639 | if (!LHSIsNull && !RHSIsNull && |
10640 | !Context.typesAreCompatible(lpointee, rpointee)) { |
10641 | Diag(Loc, diag::err_typecheck_comparison_of_distinct_blocks) |
10642 | << LHSType << RHSType << LHS.get()->getSourceRange() |
10643 | << RHS.get()->getSourceRange(); |
10644 | } |
10645 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_BitCast); |
10646 | return computeResultTy(); |
10647 | } |
10648 | |
10649 | |
10650 | if (!IsRelational |
10651 | && ((LHSType->isBlockPointerType() && RHSType->isPointerType()) |
10652 | || (LHSType->isPointerType() && RHSType->isBlockPointerType()))) { |
10653 | if (!LHSIsNull && !RHSIsNull) { |
10654 | if (!((RHSType->isPointerType() && RHSType->castAs<PointerType>() |
10655 | ->getPointeeType()->isVoidType()) |
10656 | || (LHSType->isPointerType() && LHSType->castAs<PointerType>() |
10657 | ->getPointeeType()->isVoidType()))) |
10658 | Diag(Loc, diag::err_typecheck_comparison_of_distinct_blocks) |
10659 | << LHSType << RHSType << LHS.get()->getSourceRange() |
10660 | << RHS.get()->getSourceRange(); |
10661 | } |
10662 | if (LHSIsNull && !RHSIsNull) |
10663 | LHS = ImpCastExprToType(LHS.get(), RHSType, |
10664 | RHSType->isPointerType() ? CK_BitCast |
10665 | : CK_AnyPointerToBlockPointerCast); |
10666 | else |
10667 | RHS = ImpCastExprToType(RHS.get(), LHSType, |
10668 | LHSType->isPointerType() ? CK_BitCast |
10669 | : CK_AnyPointerToBlockPointerCast); |
10670 | return computeResultTy(); |
10671 | } |
10672 | |
10673 | if (LHSType->isObjCObjectPointerType() || |
10674 | RHSType->isObjCObjectPointerType()) { |
10675 | const PointerType *LPT = LHSType->getAs<PointerType>(); |
10676 | const PointerType *RPT = RHSType->getAs<PointerType>(); |
10677 | if (LPT || RPT) { |
10678 | bool LPtrToVoid = LPT ? LPT->getPointeeType()->isVoidType() : false; |
10679 | bool RPtrToVoid = RPT ? RPT->getPointeeType()->isVoidType() : false; |
10680 | |
10681 | if (!LPtrToVoid && !RPtrToVoid && |
10682 | !Context.typesAreCompatible(LHSType, RHSType)) { |
10683 | diagnoseDistinctPointerComparison(*this, Loc, LHS, RHS, |
10684 | ); |
10685 | } |
10686 | if (LHSIsNull && !RHSIsNull) { |
10687 | Expr *E = LHS.get(); |
10688 | if (getLangOpts().ObjCAutoRefCount) |
10689 | CheckObjCConversion(SourceRange(), RHSType, E, |
10690 | CCK_ImplicitConversion); |
10691 | LHS = ImpCastExprToType(E, RHSType, |
10692 | RPT ? CK_BitCast :CK_CPointerToObjCPointerCast); |
10693 | } |
10694 | else { |
10695 | Expr *E = RHS.get(); |
10696 | if (getLangOpts().ObjCAutoRefCount) |
10697 | CheckObjCConversion(SourceRange(), LHSType, E, CCK_ImplicitConversion, |
10698 | , |
10699 | , Opc); |
10700 | RHS = ImpCastExprToType(E, LHSType, |
10701 | LPT ? CK_BitCast :CK_CPointerToObjCPointerCast); |
10702 | } |
10703 | return computeResultTy(); |
10704 | } |
10705 | if (LHSType->isObjCObjectPointerType() && |
10706 | RHSType->isObjCObjectPointerType()) { |
10707 | if (!Context.areComparableObjCPointerTypes(LHSType, RHSType)) |
10708 | diagnoseDistinctPointerComparison(*this, Loc, LHS, RHS, |
10709 | ); |
10710 | if (isObjCObjectLiteral(LHS) || isObjCObjectLiteral(RHS)) |
10711 | diagnoseObjCLiteralComparison(*this, Loc, LHS, RHS, Opc); |
10712 | |
10713 | if (LHSIsNull && !RHSIsNull) |
10714 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_BitCast); |
10715 | else |
10716 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_BitCast); |
10717 | return computeResultTy(); |
10718 | } |
10719 | |
10720 | if (!IsRelational && LHSType->isBlockPointerType() && |
10721 | RHSType->isBlockCompatibleObjCPointerType(Context)) { |
10722 | LHS = ImpCastExprToType(LHS.get(), RHSType, |
10723 | CK_BlockPointerToObjCPointerCast); |
10724 | return computeResultTy(); |
10725 | } else if (!IsRelational && |
10726 | LHSType->isBlockCompatibleObjCPointerType(Context) && |
10727 | RHSType->isBlockPointerType()) { |
10728 | RHS = ImpCastExprToType(RHS.get(), LHSType, |
10729 | CK_BlockPointerToObjCPointerCast); |
10730 | return computeResultTy(); |
10731 | } |
10732 | } |
10733 | if ((LHSType->isAnyPointerType() && RHSType->isIntegerType()) || |
10734 | (LHSType->isIntegerType() && RHSType->isAnyPointerType())) { |
10735 | unsigned DiagID = 0; |
10736 | bool isError = false; |
10737 | if (LangOpts.DebuggerSupport) { |
10738 | |
10739 | |
10740 | } else if ((LHSIsNull && LHSType->isIntegerType()) || |
10741 | (RHSIsNull && RHSType->isIntegerType())) { |
10742 | if (IsRelational) { |
10743 | isError = getLangOpts().CPlusPlus; |
10744 | DiagID = |
10745 | isError ? diag::err_typecheck_ordered_comparison_of_pointer_and_zero |
10746 | : diag::ext_typecheck_ordered_comparison_of_pointer_and_zero; |
10747 | } |
10748 | } else if (getLangOpts().CPlusPlus) { |
10749 | DiagID = diag::err_typecheck_comparison_of_pointer_integer; |
10750 | isError = true; |
10751 | } else if (IsRelational) |
10752 | DiagID = diag::ext_typecheck_ordered_comparison_of_pointer_integer; |
10753 | else |
10754 | DiagID = diag::ext_typecheck_comparison_of_pointer_integer; |
10755 | |
10756 | if (DiagID) { |
10757 | Diag(Loc, DiagID) |
10758 | << LHSType << RHSType << LHS.get()->getSourceRange() |
10759 | << RHS.get()->getSourceRange(); |
10760 | if (isError) |
10761 | return QualType(); |
10762 | } |
10763 | |
10764 | if (LHSType->isIntegerType()) |
10765 | LHS = ImpCastExprToType(LHS.get(), RHSType, |
10766 | LHSIsNull ? CK_NullToPointer : CK_IntegralToPointer); |
10767 | else |
10768 | RHS = ImpCastExprToType(RHS.get(), LHSType, |
10769 | RHSIsNull ? CK_NullToPointer : CK_IntegralToPointer); |
10770 | return computeResultTy(); |
10771 | } |
10772 | |
10773 | |
10774 | if (!IsRelational && RHSIsNull |
10775 | && LHSType->isBlockPointerType() && RHSType->isIntegerType()) { |
10776 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_NullToPointer); |
10777 | return computeResultTy(); |
10778 | } |
10779 | if (!IsRelational && LHSIsNull |
10780 | && LHSType->isIntegerType() && RHSType->isBlockPointerType()) { |
10781 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_NullToPointer); |
10782 | return computeResultTy(); |
10783 | } |
10784 | |
10785 | if (getLangOpts().OpenCLVersion >= 200) { |
10786 | if (LHSType->isClkEventT() && RHSType->isClkEventT()) { |
10787 | return computeResultTy(); |
10788 | } |
10789 | |
10790 | if (LHSType->isQueueT() && RHSType->isQueueT()) { |
10791 | return computeResultTy(); |
10792 | } |
10793 | |
10794 | if (LHSIsNull && RHSType->isQueueT()) { |
10795 | LHS = ImpCastExprToType(LHS.get(), RHSType, CK_NullToPointer); |
10796 | return computeResultTy(); |
10797 | } |
10798 | |
10799 | if (LHSType->isQueueT() && RHSIsNull) { |
10800 | RHS = ImpCastExprToType(RHS.get(), LHSType, CK_NullToPointer); |
10801 | return computeResultTy(); |
10802 | } |
10803 | } |
10804 | |
10805 | return InvalidOperands(Loc, LHS, RHS); |
10806 | } |
10807 | |
10808 | |
10809 | |
10810 | |
10811 | |
10812 | |
10813 | QualType Sema::GetSignedVectorType(QualType V) { |
10814 | const VectorType *VTy = V->getAs<VectorType>(); |
10815 | unsigned TypeSize = Context.getTypeSize(VTy->getElementType()); |
10816 | |
10817 | if (isa<ExtVectorType>(VTy)) { |
10818 | if (TypeSize == Context.getTypeSize(Context.CharTy)) |
10819 | return Context.getExtVectorType(Context.CharTy, VTy->getNumElements()); |
10820 | else if (TypeSize == Context.getTypeSize(Context.ShortTy)) |
10821 | return Context.getExtVectorType(Context.ShortTy, VTy->getNumElements()); |
10822 | else if (TypeSize == Context.getTypeSize(Context.IntTy)) |
10823 | return Context.getExtVectorType(Context.IntTy, VTy->getNumElements()); |
10824 | else if (TypeSize == Context.getTypeSize(Context.LongTy)) |
10825 | return Context.getExtVectorType(Context.LongTy, VTy->getNumElements()); |
10826 | (0) . __assert_fail ("TypeSize == Context.getTypeSize(Context.LongLongTy) && \"Unhandled vector element size in vector compare\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10827, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(TypeSize == Context.getTypeSize(Context.LongLongTy) && |
10827 | (0) . __assert_fail ("TypeSize == Context.getTypeSize(Context.LongLongTy) && \"Unhandled vector element size in vector compare\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10827, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Unhandled vector element size in vector compare"); |
10828 | return Context.getExtVectorType(Context.LongLongTy, VTy->getNumElements()); |
10829 | } |
10830 | |
10831 | if (TypeSize == Context.getTypeSize(Context.LongLongTy)) |
10832 | return Context.getVectorType(Context.LongLongTy, VTy->getNumElements(), |
10833 | VectorType::GenericVector); |
10834 | else if (TypeSize == Context.getTypeSize(Context.LongTy)) |
10835 | return Context.getVectorType(Context.LongTy, VTy->getNumElements(), |
10836 | VectorType::GenericVector); |
10837 | else if (TypeSize == Context.getTypeSize(Context.IntTy)) |
10838 | return Context.getVectorType(Context.IntTy, VTy->getNumElements(), |
10839 | VectorType::GenericVector); |
10840 | else if (TypeSize == Context.getTypeSize(Context.ShortTy)) |
10841 | return Context.getVectorType(Context.ShortTy, VTy->getNumElements(), |
10842 | VectorType::GenericVector); |
10843 | (0) . __assert_fail ("TypeSize == Context.getTypeSize(Context.CharTy) && \"Unhandled vector element size in vector compare\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10844, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(TypeSize == Context.getTypeSize(Context.CharTy) && |
10844 | (0) . __assert_fail ("TypeSize == Context.getTypeSize(Context.CharTy) && \"Unhandled vector element size in vector compare\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10844, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Unhandled vector element size in vector compare"); |
10845 | return Context.getVectorType(Context.CharTy, VTy->getNumElements(), |
10846 | VectorType::GenericVector); |
10847 | } |
10848 | |
10849 | |
10850 | |
10851 | |
10852 | |
10853 | QualType Sema::CheckVectorCompareOperands(ExprResult &LHS, ExprResult &RHS, |
10854 | SourceLocation Loc, |
10855 | BinaryOperatorKind Opc) { |
10856 | |
10857 | |
10858 | QualType vType = CheckVectorOperands(LHS, RHS, Loc, , |
10859 | , |
10860 | ().ZVector); |
10861 | if (vType.isNull()) |
10862 | return vType; |
10863 | |
10864 | QualType LHSType = LHS.get()->getType(); |
10865 | |
10866 | |
10867 | |
10868 | if (getLangOpts().AltiVec && |
10869 | vType->getAs<VectorType>()->getVectorKind() == VectorType::AltiVecVector) |
10870 | return Context.getLogicalOperationType(); |
10871 | |
10872 | |
10873 | |
10874 | |
10875 | diagnoseTautologicalComparison(*this, Loc, LHS.get(), RHS.get(), Opc); |
10876 | |
10877 | |
10878 | if (BinaryOperator::isEqualityOp(Opc) && |
10879 | LHSType->hasFloatingRepresentation()) { |
10880 | getType()->hasFloatingRepresentation()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 10880, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHS.get()->getType()->hasFloatingRepresentation()); |
10881 | CheckFloatComparison(Loc, LHS.get(), RHS.get()); |
10882 | } |
10883 | |
10884 | |
10885 | return GetSignedVectorType(vType); |
10886 | } |
10887 | |
10888 | QualType Sema::CheckVectorLogicalOperands(ExprResult &LHS, ExprResult &RHS, |
10889 | SourceLocation Loc) { |
10890 | |
10891 | |
10892 | QualType vType = CheckVectorOperands(LHS, RHS, Loc, false, |
10893 | , |
10894 | ); |
10895 | if (vType.isNull()) |
10896 | return InvalidOperands(Loc, LHS, RHS); |
10897 | if (getLangOpts().OpenCL && getLangOpts().OpenCLVersion < 120 && |
10898 | vType->hasFloatingRepresentation()) |
10899 | return InvalidOperands(Loc, LHS, RHS); |
10900 | |
10901 | |
10902 | |
10903 | if (!getLangOpts().CPlusPlus && |
10904 | !(isa<ExtVectorType>(vType->getAs<VectorType>()))) |
10905 | return InvalidLogicalVectorOperands(Loc, LHS, RHS); |
10906 | |
10907 | return GetSignedVectorType(LHS.get()->getType()); |
10908 | } |
10909 | |
10910 | inline QualType Sema::CheckBitwiseOperands(ExprResult &LHS, ExprResult &RHS, |
10911 | SourceLocation Loc, |
10912 | BinaryOperatorKind Opc) { |
10913 | checkArithmeticNull(*this, LHS, RHS, Loc, ); |
10914 | |
10915 | bool IsCompAssign = |
10916 | Opc == BO_AndAssign || Opc == BO_OrAssign || Opc == BO_XorAssign; |
10917 | |
10918 | if (LHS.get()->getType()->isVectorType() || |
10919 | RHS.get()->getType()->isVectorType()) { |
10920 | if (LHS.get()->getType()->hasIntegerRepresentation() && |
10921 | RHS.get()->getType()->hasIntegerRepresentation()) |
10922 | return CheckVectorOperands(LHS, RHS, Loc, IsCompAssign, |
10923 | , |
10924 | ().ZVector); |
10925 | return InvalidOperands(Loc, LHS, RHS); |
10926 | } |
10927 | |
10928 | if (Opc == BO_And) |
10929 | diagnoseLogicalNotOnLHSofCheck(*this, LHS, RHS, Loc, Opc); |
10930 | |
10931 | ExprResult LHSResult = LHS, RHSResult = RHS; |
10932 | QualType compType = UsualArithmeticConversions(LHSResult, RHSResult, |
10933 | IsCompAssign); |
10934 | if (LHSResult.isInvalid() || RHSResult.isInvalid()) |
10935 | return QualType(); |
10936 | LHS = LHSResult.get(); |
10937 | RHS = RHSResult.get(); |
10938 | |
10939 | if (!compType.isNull() && compType->isIntegralOrUnscopedEnumerationType()) |
10940 | return compType; |
10941 | return InvalidOperands(Loc, LHS, RHS); |
10942 | } |
10943 | |
10944 | |
10945 | inline QualType Sema::CheckLogicalOperands(ExprResult &LHS, ExprResult &RHS, |
10946 | SourceLocation Loc, |
10947 | BinaryOperatorKind Opc) { |
10948 | |
10949 | if (LHS.get()->getType()->isVectorType() || RHS.get()->getType()->isVectorType()) |
10950 | return CheckVectorLogicalOperands(LHS, RHS, Loc); |
10951 | |
10952 | |
10953 | |
10954 | |
10955 | if (LHS.get()->getType()->isIntegerType() && |
10956 | !LHS.get()->getType()->isBooleanType() && |
10957 | RHS.get()->getType()->isIntegerType() && !RHS.get()->isValueDependent() && |
10958 | |
10959 | !Loc.isMacroID() && !inTemplateInstantiation()) { |
10960 | |
10961 | |
10962 | |
10963 | |
10964 | Expr::EvalResult EVResult; |
10965 | if (RHS.get()->EvaluateAsInt(EVResult, Context)) { |
10966 | llvm::APSInt Result = EVResult.Val.getInt(); |
10967 | if ((getLangOpts().Bool && !RHS.get()->getType()->isBooleanType() && |
10968 | !RHS.get()->getExprLoc().isMacroID()) || |
10969 | (Result != 0 && Result != 1)) { |
10970 | Diag(Loc, diag::warn_logical_instead_of_bitwise) |
10971 | << RHS.get()->getSourceRange() |
10972 | << (Opc == BO_LAnd ? "&&" : "||"); |
10973 | |
10974 | Diag(Loc, diag::note_logical_instead_of_bitwise_change_operator) |
10975 | << (Opc == BO_LAnd ? "&" : "|") |
10976 | << FixItHint::CreateReplacement(SourceRange( |
10977 | Loc, getLocForEndOfToken(Loc)), |
10978 | Opc == BO_LAnd ? "&" : "|"); |
10979 | if (Opc == BO_LAnd) |
10980 | |
10981 | Diag(Loc, diag::note_logical_instead_of_bitwise_remove_constant) |
10982 | << FixItHint::CreateRemoval( |
10983 | SourceRange(getLocForEndOfToken(LHS.get()->getEndLoc()), |
10984 | RHS.get()->getEndLoc())); |
10985 | } |
10986 | } |
10987 | } |
10988 | |
10989 | if (!Context.getLangOpts().CPlusPlus) { |
10990 | |
10991 | |
10992 | if (Context.getLangOpts().OpenCL && |
10993 | Context.getLangOpts().OpenCLVersion < 120) { |
10994 | if (LHS.get()->getType()->isFloatingType() || |
10995 | RHS.get()->getType()->isFloatingType()) |
10996 | return InvalidOperands(Loc, LHS, RHS); |
10997 | } |
10998 | |
10999 | LHS = UsualUnaryConversions(LHS.get()); |
11000 | if (LHS.isInvalid()) |
11001 | return QualType(); |
11002 | |
11003 | RHS = UsualUnaryConversions(RHS.get()); |
11004 | if (RHS.isInvalid()) |
11005 | return QualType(); |
11006 | |
11007 | if (!LHS.get()->getType()->isScalarType() || |
11008 | !RHS.get()->getType()->isScalarType()) |
11009 | return InvalidOperands(Loc, LHS, RHS); |
11010 | |
11011 | return Context.IntTy; |
11012 | } |
11013 | |
11014 | |
11015 | |
11016 | |
11017 | |
11018 | |
11019 | |
11020 | ExprResult LHSRes = PerformContextuallyConvertToBool(LHS.get()); |
11021 | if (LHSRes.isInvalid()) |
11022 | return InvalidOperands(Loc, LHS, RHS); |
11023 | LHS = LHSRes; |
11024 | |
11025 | ExprResult RHSRes = PerformContextuallyConvertToBool(RHS.get()); |
11026 | if (RHSRes.isInvalid()) |
11027 | return InvalidOperands(Loc, LHS, RHS); |
11028 | RHS = RHSRes; |
11029 | |
11030 | |
11031 | |
11032 | |
11033 | return Context.BoolTy; |
11034 | } |
11035 | |
11036 | static bool IsReadonlyMessage(Expr *E, Sema &S) { |
11037 | const MemberExpr *ME = dyn_cast<MemberExpr>(E); |
11038 | if (!ME) return false; |
11039 | if (!isa<FieldDecl>(ME->getMemberDecl())) return false; |
11040 | ObjCMessageExpr *Base = dyn_cast<ObjCMessageExpr>( |
11041 | ME->getBase()->IgnoreImplicit()->IgnoreParenImpCasts()); |
11042 | if (!Base) return false; |
11043 | return Base->getMethodDecl() != nullptr; |
11044 | } |
11045 | |
11046 | |
11047 | |
11048 | |
11049 | enum NonConstCaptureKind { NCCK_None, NCCK_Block, NCCK_Lambda }; |
11050 | static NonConstCaptureKind isReferenceToNonConstCapture(Sema &S, Expr *E) { |
11051 | isLValue() && E->getType().isConstQualified()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11051, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->isLValue() && E->getType().isConstQualified()); |
11052 | E = E->IgnoreParens(); |
11053 | |
11054 | |
11055 | DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E); |
11056 | if (!DRE) return NCCK_None; |
11057 | if (!DRE->refersToEnclosingVariableOrCapture()) return NCCK_None; |
11058 | |
11059 | |
11060 | VarDecl *var = dyn_cast<VarDecl>(DRE->getDecl()); |
11061 | if (!var) return NCCK_None; |
11062 | if (var->getType().isConstQualified()) return NCCK_None; |
11063 | (0) . __assert_fail ("var->hasLocalStorage() && \"capture added 'const' to non-local?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11063, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(var->hasLocalStorage() && "capture added 'const' to non-local?"); |
11064 | |
11065 | |
11066 | DeclContext *DC = S.CurContext, *Prev = nullptr; |
11067 | |
11068 | while (DC) { |
11069 | |
11070 | |
11071 | if (auto *FD = dyn_cast<FunctionDecl>(DC)) |
11072 | if (var->isInitCapture() && |
11073 | FD->getTemplateInstantiationPattern() == var->getDeclContext()) |
11074 | break; |
11075 | if (DC == var->getDeclContext()) |
11076 | break; |
11077 | Prev = DC; |
11078 | DC = DC->getParent(); |
11079 | } |
11080 | |
11081 | if (!var->isInitCapture()) |
11082 | DC = Prev; |
11083 | return (isa<BlockDecl>(DC) ? NCCK_Block : NCCK_Lambda); |
11084 | } |
11085 | |
11086 | static bool IsTypeModifiable(QualType Ty, bool IsDereference) { |
11087 | Ty = Ty.getNonReferenceType(); |
11088 | if (IsDereference && Ty->isPointerType()) |
11089 | Ty = Ty->getPointeeType(); |
11090 | return !Ty.isConstQualified(); |
11091 | } |
11092 | |
11093 | |
11094 | |
11095 | enum { |
11096 | ConstFunction, |
11097 | ConstVariable, |
11098 | ConstMember, |
11099 | ConstMethod, |
11100 | NestedConstMember, |
11101 | ConstUnknown, |
11102 | }; |
11103 | |
11104 | |
11105 | |
11106 | |
11107 | |
11108 | static void DiagnoseConstAssignment(Sema &S, const Expr *E, |
11109 | SourceLocation Loc) { |
11110 | SourceRange ExprRange = E->getSourceRange(); |
11111 | |
11112 | |
11113 | |
11114 | bool DiagnosticEmitted = false; |
11115 | |
11116 | |
11117 | |
11118 | bool IsDereference = false; |
11119 | bool NextIsDereference = false; |
11120 | |
11121 | |
11122 | while (true) { |
11123 | IsDereference = NextIsDereference; |
11124 | |
11125 | E = E->IgnoreImplicit()->IgnoreParenImpCasts(); |
11126 | if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { |
11127 | NextIsDereference = ME->isArrow(); |
11128 | const ValueDecl *VD = ME->getMemberDecl(); |
11129 | if (const FieldDecl *Field = dyn_cast<FieldDecl>(VD)) { |
11130 | |
11131 | if (Field->isMutable()) { |
11132 | (0) . __assert_fail ("DiagnosticEmitted && \"Expected diagnostic not emitted.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11132, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(DiagnosticEmitted && "Expected diagnostic not emitted."); |
11133 | break; |
11134 | } |
11135 | |
11136 | if (!IsTypeModifiable(Field->getType(), IsDereference)) { |
11137 | if (!DiagnosticEmitted) { |
11138 | S.Diag(Loc, diag::err_typecheck_assign_const) |
11139 | << ExprRange << ConstMember << false << Field |
11140 | << Field->getType(); |
11141 | DiagnosticEmitted = true; |
11142 | } |
11143 | S.Diag(VD->getLocation(), diag::note_typecheck_assign_const) |
11144 | << ConstMember << false << Field << Field->getType() |
11145 | << Field->getSourceRange(); |
11146 | } |
11147 | E = ME->getBase(); |
11148 | continue; |
11149 | } else if (const VarDecl *VDecl = dyn_cast<VarDecl>(VD)) { |
11150 | if (VDecl->getType().isConstQualified()) { |
11151 | if (!DiagnosticEmitted) { |
11152 | S.Diag(Loc, diag::err_typecheck_assign_const) |
11153 | << ExprRange << ConstMember << true << VDecl |
11154 | << VDecl->getType(); |
11155 | DiagnosticEmitted = true; |
11156 | } |
11157 | S.Diag(VD->getLocation(), diag::note_typecheck_assign_const) |
11158 | << ConstMember << true << VDecl << VDecl->getType() |
11159 | << VDecl->getSourceRange(); |
11160 | } |
11161 | |
11162 | break; |
11163 | } |
11164 | break; |
11165 | } else if (const ArraySubscriptExpr *ASE = |
11166 | dyn_cast<ArraySubscriptExpr>(E)) { |
11167 | E = ASE->getBase()->IgnoreParenImpCasts(); |
11168 | continue; |
11169 | } else if (const ExtVectorElementExpr *EVE = |
11170 | dyn_cast<ExtVectorElementExpr>(E)) { |
11171 | E = EVE->getBase()->IgnoreParenImpCasts(); |
11172 | continue; |
11173 | } |
11174 | break; |
11175 | } |
11176 | |
11177 | if (const CallExpr *CE = dyn_cast<CallExpr>(E)) { |
11178 | |
11179 | const FunctionDecl *FD = CE->getDirectCallee(); |
11180 | if (FD && !IsTypeModifiable(FD->getReturnType(), IsDereference)) { |
11181 | if (!DiagnosticEmitted) { |
11182 | S.Diag(Loc, diag::err_typecheck_assign_const) << ExprRange |
11183 | << ConstFunction << FD; |
11184 | DiagnosticEmitted = true; |
11185 | } |
11186 | S.Diag(FD->getReturnTypeSourceRange().getBegin(), |
11187 | diag::note_typecheck_assign_const) |
11188 | << ConstFunction << FD << FD->getReturnType() |
11189 | << FD->getReturnTypeSourceRange(); |
11190 | } |
11191 | } else if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { |
11192 | |
11193 | if (const ValueDecl *VD = DRE->getDecl()) { |
11194 | if (!IsTypeModifiable(VD->getType(), IsDereference)) { |
11195 | if (!DiagnosticEmitted) { |
11196 | S.Diag(Loc, diag::err_typecheck_assign_const) |
11197 | << ExprRange << ConstVariable << VD << VD->getType(); |
11198 | DiagnosticEmitted = true; |
11199 | } |
11200 | S.Diag(VD->getLocation(), diag::note_typecheck_assign_const) |
11201 | << ConstVariable << VD << VD->getType() << VD->getSourceRange(); |
11202 | } |
11203 | } |
11204 | } else if (isa<CXXThisExpr>(E)) { |
11205 | if (const DeclContext *DC = S.getFunctionLevelDeclContext()) { |
11206 | if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(DC)) { |
11207 | if (MD->isConst()) { |
11208 | if (!DiagnosticEmitted) { |
11209 | S.Diag(Loc, diag::err_typecheck_assign_const) << ExprRange |
11210 | << ConstMethod << MD; |
11211 | DiagnosticEmitted = true; |
11212 | } |
11213 | S.Diag(MD->getLocation(), diag::note_typecheck_assign_const) |
11214 | << ConstMethod << MD << MD->getSourceRange(); |
11215 | } |
11216 | } |
11217 | } |
11218 | } |
11219 | |
11220 | if (DiagnosticEmitted) |
11221 | return; |
11222 | |
11223 | |
11224 | S.Diag(Loc, diag::err_typecheck_assign_const) << ExprRange << ConstUnknown; |
11225 | } |
11226 | |
11227 | enum OriginalExprKind { |
11228 | OEK_Variable, |
11229 | OEK_Member, |
11230 | OEK_LValue |
11231 | }; |
11232 | |
11233 | static void DiagnoseRecursiveConstFields(Sema &S, const ValueDecl *VD, |
11234 | const RecordType *Ty, |
11235 | SourceLocation Loc, SourceRange Range, |
11236 | OriginalExprKind OEK, |
11237 | bool &DiagnosticEmitted) { |
11238 | std::vector<const RecordType *> RecordTypeList; |
11239 | RecordTypeList.push_back(Ty); |
11240 | unsigned NextToCheckIndex = 0; |
11241 | |
11242 | |
11243 | while (RecordTypeList.size() > NextToCheckIndex) { |
11244 | bool IsNested = NextToCheckIndex > 0; |
11245 | for (const FieldDecl *Field : |
11246 | RecordTypeList[NextToCheckIndex]->getDecl()->fields()) { |
11247 | |
11248 | QualType FieldTy = Field->getType(); |
11249 | if (FieldTy.isConstQualified()) { |
11250 | if (!DiagnosticEmitted) { |
11251 | S.Diag(Loc, diag::err_typecheck_assign_const) |
11252 | << Range << NestedConstMember << OEK << VD |
11253 | << IsNested << Field; |
11254 | DiagnosticEmitted = true; |
11255 | } |
11256 | S.Diag(Field->getLocation(), diag::note_typecheck_assign_const) |
11257 | << NestedConstMember << IsNested << Field |
11258 | << FieldTy << Field->getSourceRange(); |
11259 | } |
11260 | |
11261 | |
11262 | FieldTy = FieldTy.getCanonicalType(); |
11263 | if (const auto *FieldRecTy = FieldTy->getAs<RecordType>()) { |
11264 | if (llvm::find(RecordTypeList, FieldRecTy) == RecordTypeList.end()) |
11265 | RecordTypeList.push_back(FieldRecTy); |
11266 | } |
11267 | } |
11268 | ++NextToCheckIndex; |
11269 | } |
11270 | } |
11271 | |
11272 | |
11273 | |
11274 | static void DiagnoseRecursiveConstFields(Sema &S, const Expr *E, |
11275 | SourceLocation Loc) { |
11276 | QualType Ty = E->getType(); |
11277 | (0) . __assert_fail ("Ty->isRecordType() && \"lvalue was not record?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11277, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Ty->isRecordType() && "lvalue was not record?"); |
11278 | SourceRange Range = E->getSourceRange(); |
11279 | const RecordType *RTy = Ty.getCanonicalType()->getAs<RecordType>(); |
11280 | bool DiagEmitted = false; |
11281 | |
11282 | if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) |
11283 | DiagnoseRecursiveConstFields(S, ME->getMemberDecl(), RTy, Loc, |
11284 | Range, OEK_Member, DiagEmitted); |
11285 | else if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) |
11286 | DiagnoseRecursiveConstFields(S, DRE->getDecl(), RTy, Loc, |
11287 | Range, OEK_Variable, DiagEmitted); |
11288 | else |
11289 | DiagnoseRecursiveConstFields(S, nullptr, RTy, Loc, |
11290 | Range, OEK_LValue, DiagEmitted); |
11291 | if (!DiagEmitted) |
11292 | DiagnoseConstAssignment(S, E, Loc); |
11293 | } |
11294 | |
11295 | |
11296 | |
11297 | static bool CheckForModifiableLvalue(Expr *E, SourceLocation Loc, Sema &S) { |
11298 | hasPlaceholderType(BuiltinType..PseudoObject)", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11298, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!E->hasPlaceholderType(BuiltinType::PseudoObject)); |
11299 | |
11300 | S.CheckShadowingDeclModification(E, Loc); |
11301 | |
11302 | SourceLocation OrigLoc = Loc; |
11303 | Expr::isModifiableLvalueResult IsLV = E->isModifiableLvalue(S.Context, |
11304 | &Loc); |
11305 | if (IsLV == Expr::MLV_ClassTemporary && IsReadonlyMessage(E, S)) |
11306 | IsLV = Expr::MLV_InvalidMessageExpression; |
11307 | if (IsLV == Expr::MLV_Valid) |
11308 | return false; |
11309 | |
11310 | unsigned DiagID = 0; |
11311 | bool NeedType = false; |
11312 | switch (IsLV) { |
11313 | case Expr::MLV_ConstQualified: |
11314 | |
11315 | |
11316 | if (NonConstCaptureKind NCCK = isReferenceToNonConstCapture(S, E)) { |
11317 | if (NCCK == NCCK_Block) |
11318 | DiagID = diag::err_block_decl_ref_not_modifiable_lvalue; |
11319 | else |
11320 | DiagID = diag::err_lambda_decl_ref_not_modifiable_lvalue; |
11321 | break; |
11322 | } |
11323 | |
11324 | |
11325 | |
11326 | if (S.getLangOpts().ObjCAutoRefCount) { |
11327 | DeclRefExpr *declRef = dyn_cast<DeclRefExpr>(E->IgnoreParenCasts()); |
11328 | if (declRef && isa<VarDecl>(declRef->getDecl())) { |
11329 | VarDecl *var = cast<VarDecl>(declRef->getDecl()); |
11330 | |
11331 | |
11332 | |
11333 | if (var->isARCPseudoStrong() && |
11334 | (!var->getTypeSourceInfo() || |
11335 | !var->getTypeSourceInfo()->getType().isConstQualified())) { |
11336 | |
11337 | |
11338 | ObjCMethodDecl *method = S.getCurMethodDecl(); |
11339 | if (method && var == method->getSelfDecl()) { |
11340 | DiagID = method->isClassMethod() |
11341 | ? diag::err_typecheck_arc_assign_self_class_method |
11342 | : diag::err_typecheck_arc_assign_self; |
11343 | |
11344 | |
11345 | } else if (var->hasAttr<ObjCExternallyRetainedAttr>() || |
11346 | isa<ParmVarDecl>(var)) { |
11347 | DiagID = diag::err_typecheck_arc_assign_externally_retained; |
11348 | |
11349 | |
11350 | } else { |
11351 | DiagID = diag::err_typecheck_arr_assign_enumeration; |
11352 | } |
11353 | |
11354 | SourceRange Assign; |
11355 | if (Loc != OrigLoc) |
11356 | Assign = SourceRange(OrigLoc, OrigLoc); |
11357 | S.Diag(Loc, DiagID) << E->getSourceRange() << Assign; |
11358 | |
11359 | |
11360 | return false; |
11361 | } |
11362 | } |
11363 | } |
11364 | |
11365 | |
11366 | |
11367 | if (DiagID == 0) { |
11368 | DiagnoseConstAssignment(S, E, Loc); |
11369 | return true; |
11370 | } |
11371 | |
11372 | break; |
11373 | case Expr::MLV_ConstAddrSpace: |
11374 | DiagnoseConstAssignment(S, E, Loc); |
11375 | return true; |
11376 | case Expr::MLV_ConstQualifiedField: |
11377 | DiagnoseRecursiveConstFields(S, E, Loc); |
11378 | return true; |
11379 | case Expr::MLV_ArrayType: |
11380 | case Expr::MLV_ArrayTemporary: |
11381 | DiagID = diag::err_typecheck_array_not_modifiable_lvalue; |
11382 | NeedType = true; |
11383 | break; |
11384 | case Expr::MLV_NotObjectType: |
11385 | DiagID = diag::err_typecheck_non_object_not_modifiable_lvalue; |
11386 | NeedType = true; |
11387 | break; |
11388 | case Expr::MLV_LValueCast: |
11389 | DiagID = diag::err_typecheck_lvalue_casts_not_supported; |
11390 | break; |
11391 | case Expr::MLV_Valid: |
11392 | llvm_unreachable("did not take early return for MLV_Valid"); |
11393 | case Expr::MLV_InvalidExpression: |
11394 | case Expr::MLV_MemberFunction: |
11395 | case Expr::MLV_ClassTemporary: |
11396 | DiagID = diag::err_typecheck_expression_not_modifiable_lvalue; |
11397 | break; |
11398 | case Expr::MLV_IncompleteType: |
11399 | case Expr::MLV_IncompleteVoidType: |
11400 | return S.RequireCompleteType(Loc, E->getType(), |
11401 | diag::err_typecheck_incomplete_type_not_modifiable_lvalue, E); |
11402 | case Expr::MLV_DuplicateVectorComponents: |
11403 | DiagID = diag::err_typecheck_duplicate_vector_components_not_mlvalue; |
11404 | break; |
11405 | case Expr::MLV_NoSetterProperty: |
11406 | llvm_unreachable("readonly properties should be processed differently"); |
11407 | case Expr::MLV_InvalidMessageExpression: |
11408 | DiagID = diag::err_readonly_message_assignment; |
11409 | break; |
11410 | case Expr::MLV_SubObjCPropertySetting: |
11411 | DiagID = diag::err_no_subobject_property_setting; |
11412 | break; |
11413 | } |
11414 | |
11415 | SourceRange Assign; |
11416 | if (Loc != OrigLoc) |
11417 | Assign = SourceRange(OrigLoc, OrigLoc); |
11418 | if (NeedType) |
11419 | S.Diag(Loc, DiagID) << E->getType() << E->getSourceRange() << Assign; |
11420 | else |
11421 | S.Diag(Loc, DiagID) << E->getSourceRange() << Assign; |
11422 | return true; |
11423 | } |
11424 | |
11425 | static void CheckIdentityFieldAssignment(Expr *LHSExpr, Expr *RHSExpr, |
11426 | SourceLocation Loc, |
11427 | Sema &Sema) { |
11428 | if (Sema.inTemplateInstantiation()) |
11429 | return; |
11430 | if (Sema.isUnevaluatedContext()) |
11431 | return; |
11432 | if (Loc.isInvalid() || Loc.isMacroID()) |
11433 | return; |
11434 | if (LHSExpr->getExprLoc().isMacroID() || RHSExpr->getExprLoc().isMacroID()) |
11435 | return; |
11436 | |
11437 | |
11438 | MemberExpr *ML = dyn_cast<MemberExpr>(LHSExpr); |
11439 | MemberExpr *MR = dyn_cast<MemberExpr>(RHSExpr); |
11440 | if (ML && MR) { |
11441 | if (!(isa<CXXThisExpr>(ML->getBase()) && isa<CXXThisExpr>(MR->getBase()))) |
11442 | return; |
11443 | const ValueDecl *LHSDecl = |
11444 | cast<ValueDecl>(ML->getMemberDecl()->getCanonicalDecl()); |
11445 | const ValueDecl *RHSDecl = |
11446 | cast<ValueDecl>(MR->getMemberDecl()->getCanonicalDecl()); |
11447 | if (LHSDecl != RHSDecl) |
11448 | return; |
11449 | if (LHSDecl->getType().isVolatileQualified()) |
11450 | return; |
11451 | if (const ReferenceType *RefTy = LHSDecl->getType()->getAs<ReferenceType>()) |
11452 | if (RefTy->getPointeeType().isVolatileQualified()) |
11453 | return; |
11454 | |
11455 | Sema.Diag(Loc, diag::warn_identity_field_assign) << 0; |
11456 | } |
11457 | |
11458 | |
11459 | ObjCIvarRefExpr *OL = dyn_cast<ObjCIvarRefExpr>(LHSExpr); |
11460 | ObjCIvarRefExpr *OR = dyn_cast<ObjCIvarRefExpr>(RHSExpr); |
11461 | if (OL && OR && OL->getDecl() == OR->getDecl()) { |
11462 | DeclRefExpr *RL = dyn_cast<DeclRefExpr>(OL->getBase()->IgnoreImpCasts()); |
11463 | DeclRefExpr *RR = dyn_cast<DeclRefExpr>(OR->getBase()->IgnoreImpCasts()); |
11464 | if (RL && RR && RL->getDecl() == RR->getDecl()) |
11465 | Sema.Diag(Loc, diag::warn_identity_field_assign) << 1; |
11466 | } |
11467 | } |
11468 | |
11469 | |
11470 | QualType Sema::CheckAssignmentOperands(Expr *LHSExpr, ExprResult &RHS, |
11471 | SourceLocation Loc, |
11472 | QualType CompoundType) { |
11473 | hasPlaceholderType(BuiltinType..PseudoObject)", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11473, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!LHSExpr->hasPlaceholderType(BuiltinType::PseudoObject)); |
11474 | |
11475 | |
11476 | if (CheckForModifiableLvalue(LHSExpr, Loc, *this)) |
11477 | return QualType(); |
11478 | |
11479 | QualType LHSType = LHSExpr->getType(); |
11480 | QualType RHSType = CompoundType.isNull() ? RHS.get()->getType() : |
11481 | CompoundType; |
11482 | |
11483 | |
11484 | |
11485 | if (getLangOpts().OpenCL && !getOpenCLOptions().isEnabled("cl_khr_fp16") && |
11486 | LHSType->isHalfType()) { |
11487 | Diag(Loc, diag::err_opencl_half_load_store) << 1 |
11488 | << LHSType.getUnqualifiedType(); |
11489 | return QualType(); |
11490 | } |
11491 | |
11492 | AssignConvertType ConvTy; |
11493 | if (CompoundType.isNull()) { |
11494 | Expr *RHSCheck = RHS.get(); |
11495 | |
11496 | CheckIdentityFieldAssignment(LHSExpr, RHSCheck, Loc, *this); |
11497 | |
11498 | QualType LHSTy(LHSType); |
11499 | ConvTy = CheckSingleAssignmentConstraints(LHSTy, RHS); |
11500 | if (RHS.isInvalid()) |
11501 | return QualType(); |
11502 | |
11503 | if (ConvTy == IncompatiblePointer && |
11504 | ((Context.isObjCNSObjectType(LHSType) && |
11505 | RHSType->isObjCObjectPointerType()) || |
11506 | (Context.isObjCNSObjectType(RHSType) && |
11507 | LHSType->isObjCObjectPointerType()))) |
11508 | ConvTy = Compatible; |
11509 | |
11510 | if (ConvTy == Compatible && |
11511 | LHSType->isObjCObjectType()) |
11512 | Diag(Loc, diag::err_objc_object_assignment) |
11513 | << LHSType; |
11514 | |
11515 | |
11516 | |
11517 | |
11518 | if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(RHSCheck)) |
11519 | RHSCheck = ICE->getSubExpr(); |
11520 | if (UnaryOperator *UO = dyn_cast<UnaryOperator>(RHSCheck)) { |
11521 | if ((UO->getOpcode() == UO_Plus || UO->getOpcode() == UO_Minus) && |
11522 | Loc.isFileID() && UO->getOperatorLoc().isFileID() && |
11523 | |
11524 | Loc.getLocWithOffset(1) == UO->getOperatorLoc() && |
11525 | |
11526 | |
11527 | Loc.getLocWithOffset(2) != UO->getSubExpr()->getBeginLoc() && |
11528 | UO->getSubExpr()->getBeginLoc().isFileID()) { |
11529 | Diag(Loc, diag::warn_not_compound_assign) |
11530 | << (UO->getOpcode() == UO_Plus ? "+" : "-") |
11531 | << SourceRange(UO->getOperatorLoc(), UO->getOperatorLoc()); |
11532 | } |
11533 | } |
11534 | |
11535 | if (ConvTy == Compatible) { |
11536 | if (LHSType.getObjCLifetime() == Qualifiers::OCL_Strong) { |
11537 | |
11538 | |
11539 | |
11540 | const Expr *InnerLHS = LHSExpr->IgnoreParenCasts(); |
11541 | const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(InnerLHS); |
11542 | if (!DRE || DRE->getDecl()->hasAttr<BlocksAttr>()) |
11543 | checkRetainCycles(LHSExpr, RHS.get()); |
11544 | } |
11545 | |
11546 | if (LHSType.getObjCLifetime() == Qualifiers::OCL_Strong || |
11547 | LHSType.isNonWeakInMRRWithObjCWeak(Context)) { |
11548 | |
11549 | |
11550 | |
11551 | |
11552 | |
11553 | |
11554 | |
11555 | |
11556 | |
11557 | if (!Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, |
11558 | RHS.get()->getBeginLoc())) |
11559 | getCurFunction()->markSafeWeakUse(RHS.get()); |
11560 | |
11561 | } else if (getLangOpts().ObjCAutoRefCount || getLangOpts().ObjCWeak) { |
11562 | checkUnsafeExprAssigns(Loc, LHSExpr, RHS.get()); |
11563 | } |
11564 | } |
11565 | } else { |
11566 | |
11567 | ConvTy = CheckAssignmentConstraints(Loc, LHSType, RHSType); |
11568 | } |
11569 | |
11570 | if (DiagnoseAssignmentResult(ConvTy, Loc, LHSType, RHSType, |
11571 | RHS.get(), AA_Assigning)) |
11572 | return QualType(); |
11573 | |
11574 | CheckForNullPointerDereference(*this, LHSExpr); |
11575 | |
11576 | |
11577 | |
11578 | |
11579 | |
11580 | |
11581 | |
11582 | |
11583 | return (getLangOpts().CPlusPlus |
11584 | ? LHSType : LHSType.getUnqualifiedType()); |
11585 | } |
11586 | |
11587 | |
11588 | static bool IgnoreCommaOperand(const Expr *E) { |
11589 | E = E->IgnoreParens(); |
11590 | |
11591 | if (const CastExpr *CE = dyn_cast<CastExpr>(E)) { |
11592 | if (CE->getCastKind() == CK_ToVoid) { |
11593 | return true; |
11594 | } |
11595 | |
11596 | |
11597 | if (CE->getCastKind() == CK_Dependent && E->getType()->isVoidType() && |
11598 | CE->getSubExpr()->getType()->isDependentType()) { |
11599 | return true; |
11600 | } |
11601 | } |
11602 | |
11603 | return false; |
11604 | } |
11605 | |
11606 | |
11607 | |
11608 | |
11609 | void Sema::DiagnoseCommaOperator(const Expr *LHS, SourceLocation Loc) { |
11610 | |
11611 | if (Loc.isMacroID()) |
11612 | return; |
11613 | |
11614 | |
11615 | if (inTemplateInstantiation()) |
11616 | return; |
11617 | |
11618 | |
11619 | |
11620 | |
11621 | |
11622 | |
11623 | |
11624 | |
11625 | const unsigned ForIncrementFlags = |
11626 | getLangOpts().C99 || getLangOpts().CPlusPlus |
11627 | ? Scope::ControlScope | Scope::ContinueScope | Scope::BreakScope |
11628 | : Scope::ContinueScope | Scope::BreakScope; |
11629 | const unsigned ForInitFlags = Scope::ControlScope | Scope::DeclScope; |
11630 | const unsigned ScopeFlags = getCurScope()->getFlags(); |
11631 | if ((ScopeFlags & ForIncrementFlags) == ForIncrementFlags || |
11632 | (ScopeFlags & ForInitFlags) == ForInitFlags) |
11633 | return; |
11634 | |
11635 | |
11636 | |
11637 | while (const BinaryOperator *BO = dyn_cast<BinaryOperator>(LHS)) { |
11638 | if (BO->getOpcode() != BO_Comma) |
11639 | break; |
11640 | LHS = BO->getRHS(); |
11641 | } |
11642 | |
11643 | |
11644 | if (IgnoreCommaOperand(LHS)) |
11645 | return; |
11646 | |
11647 | Diag(Loc, diag::warn_comma_operator); |
11648 | Diag(LHS->getBeginLoc(), diag::note_cast_to_void) |
11649 | << LHS->getSourceRange() |
11650 | << FixItHint::CreateInsertion(LHS->getBeginLoc(), |
11651 | LangOpts.CPlusPlus ? "static_cast<void>(" |
11652 | : "(void)(") |
11653 | << FixItHint::CreateInsertion(PP.getLocForEndOfToken(LHS->getEndLoc()), |
11654 | ")"); |
11655 | } |
11656 | |
11657 | |
11658 | static QualType CheckCommaOperands(Sema &S, ExprResult &LHS, ExprResult &RHS, |
11659 | SourceLocation Loc) { |
11660 | LHS = S.CheckPlaceholderExpr(LHS.get()); |
11661 | RHS = S.CheckPlaceholderExpr(RHS.get()); |
11662 | if (LHS.isInvalid() || RHS.isInvalid()) |
11663 | return QualType(); |
11664 | |
11665 | |
11666 | |
11667 | |
11668 | |
11669 | |
11670 | |
11671 | LHS = S.IgnoredValueConversions(LHS.get()); |
11672 | if (LHS.isInvalid()) |
11673 | return QualType(); |
11674 | |
11675 | S.DiagnoseUnusedExprResult(LHS.get()); |
11676 | |
11677 | if (!S.getLangOpts().CPlusPlus) { |
11678 | RHS = S.DefaultFunctionArrayLvalueConversion(RHS.get()); |
11679 | if (RHS.isInvalid()) |
11680 | return QualType(); |
11681 | if (!RHS.get()->getType()->isVoidType()) |
11682 | S.RequireCompleteType(Loc, RHS.get()->getType(), |
11683 | diag::err_incomplete_type); |
11684 | } |
11685 | |
11686 | if (!S.getDiagnostics().isIgnored(diag::warn_comma_operator, Loc)) |
11687 | S.DiagnoseCommaOperator(LHS.get(), Loc); |
11688 | |
11689 | return RHS.get()->getType(); |
11690 | } |
11691 | |
11692 | |
11693 | |
11694 | static QualType CheckIncrementDecrementOperand(Sema &S, Expr *Op, |
11695 | ExprValueKind &VK, |
11696 | ExprObjectKind &OK, |
11697 | SourceLocation OpLoc, |
11698 | bool IsInc, bool IsPrefix) { |
11699 | if (Op->isTypeDependent()) |
11700 | return S.Context.DependentTy; |
11701 | |
11702 | QualType ResType = Op->getType(); |
11703 | |
11704 | |
11705 | |
11706 | if (const AtomicType *ResAtomicType = ResType->getAs<AtomicType>()) |
11707 | ResType = ResAtomicType->getValueType(); |
11708 | |
11709 | (0) . __assert_fail ("!ResType.isNull() && \"no type for increment/decrement expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11709, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!ResType.isNull() && "no type for increment/decrement expression"); |
11710 | |
11711 | if (S.getLangOpts().CPlusPlus && ResType->isBooleanType()) { |
11712 | |
11713 | if (!IsInc) { |
11714 | S.Diag(OpLoc, diag::err_decrement_bool) << Op->getSourceRange(); |
11715 | return QualType(); |
11716 | } |
11717 | |
11718 | S.Diag(OpLoc, S.getLangOpts().CPlusPlus17 ? diag::ext_increment_bool |
11719 | : diag::warn_increment_bool) |
11720 | << Op->getSourceRange(); |
11721 | } else if (S.getLangOpts().CPlusPlus && ResType->isEnumeralType()) { |
11722 | |
11723 | S.Diag(OpLoc, diag::err_increment_decrement_enum) << IsInc << ResType; |
11724 | return QualType(); |
11725 | } else if (ResType->isRealType()) { |
11726 | |
11727 | } else if (ResType->isPointerType()) { |
11728 | |
11729 | if (!checkArithmeticOpPointerOperand(S, OpLoc, Op)) |
11730 | return QualType(); |
11731 | } else if (ResType->isObjCObjectPointerType()) { |
11732 | |
11733 | |
11734 | if (checkArithmeticIncompletePointerType(S, OpLoc, Op) || |
11735 | checkArithmeticOnObjCPointer(S, OpLoc, Op)) |
11736 | return QualType(); |
11737 | } else if (ResType->isAnyComplexType()) { |
11738 | |
11739 | S.Diag(OpLoc, diag::ext_integer_increment_complex) |
11740 | << ResType << Op->getSourceRange(); |
11741 | } else if (ResType->isPlaceholderType()) { |
11742 | ExprResult PR = S.CheckPlaceholderExpr(Op); |
11743 | if (PR.isInvalid()) return QualType(); |
11744 | return CheckIncrementDecrementOperand(S, PR.get(), VK, OK, OpLoc, |
11745 | IsInc, IsPrefix); |
11746 | } else if (S.getLangOpts().AltiVec && ResType->isVectorType()) { |
11747 | |
11748 | } else if (S.getLangOpts().ZVector && ResType->isVectorType() && |
11749 | (ResType->getAs<VectorType>()->getVectorKind() != |
11750 | VectorType::AltiVecBool)) { |
11751 | |
11752 | } else if(S.getLangOpts().OpenCL && ResType->isVectorType() && |
11753 | ResType->getAs<VectorType>()->getElementType()->isIntegerType()) { |
11754 | |
11755 | } else { |
11756 | S.Diag(OpLoc, diag::err_typecheck_illegal_increment_decrement) |
11757 | << ResType << int(IsInc) << Op->getSourceRange(); |
11758 | return QualType(); |
11759 | } |
11760 | |
11761 | |
11762 | if (CheckForModifiableLvalue(Op, OpLoc, S)) |
11763 | return QualType(); |
11764 | |
11765 | |
11766 | |
11767 | if (IsPrefix && S.getLangOpts().CPlusPlus) { |
11768 | VK = VK_LValue; |
11769 | OK = Op->getObjectKind(); |
11770 | return ResType; |
11771 | } else { |
11772 | VK = VK_RValue; |
11773 | return ResType.getUnqualifiedType(); |
11774 | } |
11775 | } |
11776 | |
11777 | |
11778 | |
11779 | |
11780 | |
11781 | |
11782 | |
11783 | |
11784 | |
11785 | |
11786 | |
11787 | |
11788 | |
11789 | |
11790 | static ValueDecl *getPrimaryDecl(Expr *E) { |
11791 | switch (E->getStmtClass()) { |
11792 | case Stmt::DeclRefExprClass: |
11793 | return cast<DeclRefExpr>(E)->getDecl(); |
11794 | case Stmt::MemberExprClass: |
11795 | |
11796 | |
11797 | |
11798 | if (cast<MemberExpr>(E)->isArrow()) |
11799 | return nullptr; |
11800 | |
11801 | return getPrimaryDecl(cast<MemberExpr>(E)->getBase()); |
11802 | case Stmt::ArraySubscriptExprClass: { |
11803 | |
11804 | |
11805 | Expr* Base = cast<ArraySubscriptExpr>(E)->getBase(); |
11806 | if (ImplicitCastExpr* ICE = dyn_cast<ImplicitCastExpr>(Base)) { |
11807 | if (ICE->getSubExpr()->getType()->isArrayType()) |
11808 | return getPrimaryDecl(ICE->getSubExpr()); |
11809 | } |
11810 | return nullptr; |
11811 | } |
11812 | case Stmt::UnaryOperatorClass: { |
11813 | UnaryOperator *UO = cast<UnaryOperator>(E); |
11814 | |
11815 | switch(UO->getOpcode()) { |
11816 | case UO_Real: |
11817 | case UO_Imag: |
11818 | case UO_Extension: |
11819 | return getPrimaryDecl(UO->getSubExpr()); |
11820 | default: |
11821 | return nullptr; |
11822 | } |
11823 | } |
11824 | case Stmt::ParenExprClass: |
11825 | return getPrimaryDecl(cast<ParenExpr>(E)->getSubExpr()); |
11826 | case Stmt::ImplicitCastExprClass: |
11827 | |
11828 | |
11829 | return getPrimaryDecl(cast<ImplicitCastExpr>(E)->getSubExpr()); |
11830 | default: |
11831 | return nullptr; |
11832 | } |
11833 | } |
11834 | |
11835 | namespace { |
11836 | enum { |
11837 | AO_Bit_Field = 0, |
11838 | AO_Vector_Element = 1, |
11839 | AO_Property_Expansion = 2, |
11840 | AO_Register_Variable = 3, |
11841 | AO_No_Error = 4 |
11842 | }; |
11843 | } |
11844 | |
11845 | |
11846 | |
11847 | static void diagnoseAddressOfInvalidType(Sema &S, SourceLocation Loc, |
11848 | Expr *E, unsigned Type) { |
11849 | S.Diag(Loc, diag::err_typecheck_address_of) << Type << E->getSourceRange(); |
11850 | } |
11851 | |
11852 | |
11853 | |
11854 | |
11855 | |
11856 | |
11857 | |
11858 | |
11859 | QualType Sema::CheckAddressOfOperand(ExprResult &OrigOp, SourceLocation OpLoc) { |
11860 | if (const BuiltinType *PTy = OrigOp.get()->getType()->getAsPlaceholderType()){ |
11861 | if (PTy->getKind() == BuiltinType::Overload) { |
11862 | Expr *E = OrigOp.get()->IgnoreParens(); |
11863 | if (!isa<OverloadExpr>(E)) { |
11864 | (E)->getOpcode() == UO_AddrOf", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11864, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(cast<UnaryOperator>(E)->getOpcode() == UO_AddrOf); |
11865 | Diag(OpLoc, diag::err_typecheck_invalid_lvalue_addrof_addrof_function) |
11866 | << OrigOp.get()->getSourceRange(); |
11867 | return QualType(); |
11868 | } |
11869 | |
11870 | OverloadExpr *Ovl = cast<OverloadExpr>(E); |
11871 | if (isa<UnresolvedMemberExpr>(Ovl)) |
11872 | if (!ResolveSingleFunctionTemplateSpecialization(Ovl)) { |
11873 | Diag(OpLoc, diag::err_invalid_form_pointer_member_function) |
11874 | << OrigOp.get()->getSourceRange(); |
11875 | return QualType(); |
11876 | } |
11877 | |
11878 | return Context.OverloadTy; |
11879 | } |
11880 | |
11881 | if (PTy->getKind() == BuiltinType::UnknownAny) |
11882 | return Context.UnknownAnyTy; |
11883 | |
11884 | if (PTy->getKind() == BuiltinType::BoundMember) { |
11885 | Diag(OpLoc, diag::err_invalid_form_pointer_member_function) |
11886 | << OrigOp.get()->getSourceRange(); |
11887 | return QualType(); |
11888 | } |
11889 | |
11890 | OrigOp = CheckPlaceholderExpr(OrigOp.get()); |
11891 | if (OrigOp.isInvalid()) return QualType(); |
11892 | } |
11893 | |
11894 | if (OrigOp.get()->isTypeDependent()) |
11895 | return Context.DependentTy; |
11896 | |
11897 | getType()->isPlaceholderType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 11897, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!OrigOp.get()->getType()->isPlaceholderType()); |
11898 | |
11899 | |
11900 | Expr *op = OrigOp.get()->IgnoreParens(); |
11901 | |
11902 | |
11903 | |
11904 | |
11905 | |
11906 | |
11907 | if (LangOpts.OpenCL) { |
11908 | auto* VarRef = dyn_cast<DeclRefExpr>(op); |
11909 | if (VarRef && VarRef->refersToEnclosingVariableOrCapture()) { |
11910 | Diag(op->getExprLoc(), diag::err_opencl_taking_address_capture); |
11911 | return QualType(); |
11912 | } |
11913 | } |
11914 | |
11915 | if (getLangOpts().C99) { |
11916 | |
11917 | if (UnaryOperator* uOp = dyn_cast<UnaryOperator>(op)) { |
11918 | if (uOp->getOpcode() == UO_Deref) |
11919 | |
11920 | |
11921 | return uOp->getSubExpr()->getType(); |
11922 | } |
11923 | |
11924 | |
11925 | } |
11926 | ValueDecl *dcl = getPrimaryDecl(op); |
11927 | |
11928 | if (auto *FD = dyn_cast_or_null<FunctionDecl>(dcl)) |
11929 | if (!checkAddressOfFunctionIsAvailable(FD, , |
11930 | op->getBeginLoc())) |
11931 | return QualType(); |
11932 | |
11933 | Expr::LValueClassification lval = op->ClassifyLValue(Context); |
11934 | unsigned AddressOfError = AO_No_Error; |
11935 | |
11936 | if (lval == Expr::LV_ClassTemporary || lval == Expr::LV_ArrayTemporary) { |
11937 | bool sfinae = (bool)isSFINAEContext(); |
11938 | Diag(OpLoc, isSFINAEContext() ? diag::err_typecheck_addrof_temporary |
11939 | : diag::ext_typecheck_addrof_temporary) |
11940 | << op->getType() << op->getSourceRange(); |
11941 | if (sfinae) |
11942 | return QualType(); |
11943 | |
11944 | OrigOp = op = |
11945 | CreateMaterializeTemporaryExpr(op->getType(), OrigOp.get(), true); |
11946 | } else if (isa<ObjCSelectorExpr>(op)) { |
11947 | return Context.getPointerType(op->getType()); |
11948 | } else if (lval == Expr::LV_MemberFunction) { |
11949 | |
11950 | |
11951 | |
11952 | |
11953 | if (!isa<DeclRefExpr>(op)) { |
11954 | Diag(OpLoc, diag::err_invalid_form_pointer_member_function) |
11955 | << OrigOp.get()->getSourceRange(); |
11956 | return QualType(); |
11957 | } |
11958 | DeclRefExpr *DRE = cast<DeclRefExpr>(op); |
11959 | CXXMethodDecl *MD = cast<CXXMethodDecl>(DRE->getDecl()); |
11960 | |
11961 | |
11962 | if (OrigOp.get() != DRE) { |
11963 | Diag(OpLoc, diag::err_parens_pointer_member_function) |
11964 | << OrigOp.get()->getSourceRange(); |
11965 | |
11966 | |
11967 | } else if (!DRE->getQualifier()) { |
11968 | if (MD->getParent()->getName().empty()) |
11969 | Diag(OpLoc, diag::err_unqualified_pointer_member_function) |
11970 | << op->getSourceRange(); |
11971 | else { |
11972 | SmallString<32> Str; |
11973 | StringRef Qual = (MD->getParent()->getName() + "::").toStringRef(Str); |
11974 | Diag(OpLoc, diag::err_unqualified_pointer_member_function) |
11975 | << op->getSourceRange() |
11976 | << FixItHint::CreateInsertion(op->getSourceRange().getBegin(), Qual); |
11977 | } |
11978 | } |
11979 | |
11980 | |
11981 | if (isa<CXXDestructorDecl>(MD)) |
11982 | Diag(OpLoc, diag::err_typecheck_addrof_dtor) << op->getSourceRange(); |
11983 | |
11984 | QualType MPTy = Context.getMemberPointerType( |
11985 | op->getType(), Context.getTypeDeclType(MD->getParent()).getTypePtr()); |
11986 | |
11987 | if (Context.getTargetInfo().getCXXABI().isMicrosoft()) |
11988 | (void)isCompleteType(OpLoc, MPTy); |
11989 | return MPTy; |
11990 | } else if (lval != Expr::LV_Valid && lval != Expr::LV_IncompleteVoidType) { |
11991 | |
11992 | |
11993 | if (!op->getType()->isFunctionType()) { |
11994 | |
11995 | if (isa<PseudoObjectExpr>(op)) { |
11996 | AddressOfError = AO_Property_Expansion; |
11997 | } else { |
11998 | Diag(OpLoc, diag::err_typecheck_invalid_lvalue_addrof) |
11999 | << op->getType() << op->getSourceRange(); |
12000 | return QualType(); |
12001 | } |
12002 | } |
12003 | } else if (op->getObjectKind() == OK_BitField) { |
12004 | |
12005 | AddressOfError = AO_Bit_Field; |
12006 | } else if (op->getObjectKind() == OK_VectorComponent) { |
12007 | |
12008 | AddressOfError = AO_Vector_Element; |
12009 | } else if (dcl) { |
12010 | |
12011 | |
12012 | if (const VarDecl *vd = dyn_cast<VarDecl>(dcl)) { |
12013 | |
12014 | |
12015 | if (vd->getStorageClass() == SC_Register && |
12016 | !getLangOpts().CPlusPlus) { |
12017 | AddressOfError = AO_Register_Variable; |
12018 | } |
12019 | } else if (isa<MSPropertyDecl>(dcl)) { |
12020 | AddressOfError = AO_Property_Expansion; |
12021 | } else if (isa<FunctionTemplateDecl>(dcl)) { |
12022 | return Context.OverloadTy; |
12023 | } else if (isa<FieldDecl>(dcl) || isa<IndirectFieldDecl>(dcl)) { |
12024 | |
12025 | |
12026 | |
12027 | if (isa<DeclRefExpr>(op) && cast<DeclRefExpr>(op)->getQualifier()) { |
12028 | DeclContext *Ctx = dcl->getDeclContext(); |
12029 | if (Ctx && Ctx->isRecord()) { |
12030 | if (dcl->getType()->isReferenceType()) { |
12031 | Diag(OpLoc, |
12032 | diag::err_cannot_form_pointer_to_member_of_reference_type) |
12033 | << dcl->getDeclName() << dcl->getType(); |
12034 | return QualType(); |
12035 | } |
12036 | |
12037 | while (cast<RecordDecl>(Ctx)->isAnonymousStructOrUnion()) |
12038 | Ctx = Ctx->getParent(); |
12039 | |
12040 | QualType MPTy = Context.getMemberPointerType( |
12041 | op->getType(), |
12042 | Context.getTypeDeclType(cast<RecordDecl>(Ctx)).getTypePtr()); |
12043 | |
12044 | if (Context.getTargetInfo().getCXXABI().isMicrosoft()) |
12045 | (void)isCompleteType(OpLoc, MPTy); |
12046 | return MPTy; |
12047 | } |
12048 | } |
12049 | } else if (!isa<FunctionDecl>(dcl) && !isa<NonTypeTemplateParmDecl>(dcl) && |
12050 | !isa<BindingDecl>(dcl)) |
12051 | llvm_unreachable("Unknown/unexpected decl type"); |
12052 | } |
12053 | |
12054 | if (AddressOfError != AO_No_Error) { |
12055 | diagnoseAddressOfInvalidType(*this, OpLoc, op, AddressOfError); |
12056 | return QualType(); |
12057 | } |
12058 | |
12059 | if (lval == Expr::LV_IncompleteVoidType) { |
12060 | |
12061 | |
12062 | |
12063 | Diag(OpLoc, diag::ext_typecheck_addrof_void) << op->getSourceRange(); |
12064 | } |
12065 | |
12066 | |
12067 | if (op->getType()->isObjCObjectType()) |
12068 | return Context.getObjCObjectPointerType(op->getType()); |
12069 | |
12070 | CheckAddressOfPackedMember(op); |
12071 | |
12072 | return Context.getPointerType(op->getType()); |
12073 | } |
12074 | |
12075 | static void RecordModifiableNonNullParam(Sema &S, const Expr *Exp) { |
12076 | const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(Exp); |
12077 | if (!DRE) |
12078 | return; |
12079 | const Decl *D = DRE->getDecl(); |
12080 | if (!D) |
12081 | return; |
12082 | const ParmVarDecl *Param = dyn_cast<ParmVarDecl>(D); |
12083 | if (!Param) |
12084 | return; |
12085 | if (const FunctionDecl* FD = dyn_cast<FunctionDecl>(Param->getDeclContext())) |
12086 | if (!FD->hasAttr<NonNullAttr>() && !Param->hasAttr<NonNullAttr>()) |
12087 | return; |
12088 | if (FunctionScopeInfo *FD = S.getCurFunction()) |
12089 | if (!FD->ModifiedNonNullParams.count(Param)) |
12090 | FD->ModifiedNonNullParams.insert(Param); |
12091 | } |
12092 | |
12093 | |
12094 | static QualType CheckIndirectionOperand(Sema &S, Expr *Op, ExprValueKind &VK, |
12095 | SourceLocation OpLoc) { |
12096 | if (Op->isTypeDependent()) |
12097 | return S.Context.DependentTy; |
12098 | |
12099 | ExprResult ConvResult = S.UsualUnaryConversions(Op); |
12100 | if (ConvResult.isInvalid()) |
12101 | return QualType(); |
12102 | Op = ConvResult.get(); |
12103 | QualType OpTy = Op->getType(); |
12104 | QualType Result; |
12105 | |
12106 | if (isa<CXXReinterpretCastExpr>(Op)) { |
12107 | QualType OpOrigType = Op->IgnoreParenCasts()->getType(); |
12108 | S.CheckCompatibleReinterpretCast(OpOrigType, OpTy, , |
12109 | Op->getSourceRange()); |
12110 | } |
12111 | |
12112 | if (const PointerType *PT = OpTy->getAs<PointerType>()) |
12113 | { |
12114 | Result = PT->getPointeeType(); |
12115 | } |
12116 | else if (const ObjCObjectPointerType *OPT = |
12117 | OpTy->getAs<ObjCObjectPointerType>()) |
12118 | Result = OPT->getPointeeType(); |
12119 | else { |
12120 | ExprResult PR = S.CheckPlaceholderExpr(Op); |
12121 | if (PR.isInvalid()) return QualType(); |
12122 | if (PR.get() != Op) |
12123 | return CheckIndirectionOperand(S, PR.get(), VK, OpLoc); |
12124 | } |
12125 | |
12126 | if (Result.isNull()) { |
12127 | S.Diag(OpLoc, diag::err_typecheck_indirection_requires_pointer) |
12128 | << OpTy << Op->getSourceRange(); |
12129 | return QualType(); |
12130 | } |
12131 | |
12132 | |
12133 | |
12134 | |
12135 | |
12136 | |
12137 | |
12138 | |
12139 | |
12140 | |
12141 | if (S.getLangOpts().CPlusPlus && Result->isVoidType()) |
12142 | S.Diag(OpLoc, diag::ext_typecheck_indirection_through_void_pointer) |
12143 | << OpTy << Op->getSourceRange(); |
12144 | |
12145 | |
12146 | VK = VK_LValue; |
12147 | |
12148 | |
12149 | if (!S.getLangOpts().CPlusPlus && Result.isCForbiddenLValueType()) |
12150 | VK = VK_RValue; |
12151 | |
12152 | return Result; |
12153 | } |
12154 | |
12155 | BinaryOperatorKind Sema::ConvertTokenKindToBinaryOpcode(tok::TokenKind Kind) { |
12156 | BinaryOperatorKind Opc; |
12157 | switch (Kind) { |
12158 | default: llvm_unreachable("Unknown binop!"); |
12159 | case tok::periodstar: Opc = BO_PtrMemD; break; |
12160 | case tok::arrowstar: Opc = BO_PtrMemI; break; |
12161 | case tok::star: Opc = BO_Mul; break; |
12162 | case tok::slash: Opc = BO_Div; break; |
12163 | case tok::percent: Opc = BO_Rem; break; |
12164 | case tok::plus: Opc = BO_Add; break; |
12165 | case tok::minus: Opc = BO_Sub; break; |
12166 | case tok::lessless: Opc = BO_Shl; break; |
12167 | case tok::greatergreater: Opc = BO_Shr; break; |
12168 | case tok::lessequal: Opc = BO_LE; break; |
12169 | case tok::less: Opc = BO_LT; break; |
12170 | case tok::greaterequal: Opc = BO_GE; break; |
12171 | case tok::greater: Opc = BO_GT; break; |
12172 | case tok::exclaimequal: Opc = BO_NE; break; |
12173 | case tok::equalequal: Opc = BO_EQ; break; |
12174 | case tok::spaceship: Opc = BO_Cmp; break; |
12175 | case tok::amp: Opc = BO_And; break; |
12176 | case tok::caret: Opc = BO_Xor; break; |
12177 | case tok::pipe: Opc = BO_Or; break; |
12178 | case tok::ampamp: Opc = BO_LAnd; break; |
12179 | case tok::pipepipe: Opc = BO_LOr; break; |
12180 | case tok::equal: Opc = BO_Assign; break; |
12181 | case tok::starequal: Opc = BO_MulAssign; break; |
12182 | case tok::slashequal: Opc = BO_DivAssign; break; |
12183 | case tok::percentequal: Opc = BO_RemAssign; break; |
12184 | case tok::plusequal: Opc = BO_AddAssign; break; |
12185 | case tok::minusequal: Opc = BO_SubAssign; break; |
12186 | case tok::lesslessequal: Opc = BO_ShlAssign; break; |
12187 | case tok::greatergreaterequal: Opc = BO_ShrAssign; break; |
12188 | case tok::ampequal: Opc = BO_AndAssign; break; |
12189 | case tok::caretequal: Opc = BO_XorAssign; break; |
12190 | case tok::pipeequal: Opc = BO_OrAssign; break; |
12191 | case tok::comma: Opc = BO_Comma; break; |
12192 | } |
12193 | return Opc; |
12194 | } |
12195 | |
12196 | static inline UnaryOperatorKind ConvertTokenKindToUnaryOpcode( |
12197 | tok::TokenKind Kind) { |
12198 | UnaryOperatorKind Opc; |
12199 | switch (Kind) { |
12200 | default: llvm_unreachable("Unknown unary op!"); |
12201 | case tok::plusplus: Opc = UO_PreInc; break; |
12202 | case tok::minusminus: Opc = UO_PreDec; break; |
12203 | case tok::amp: Opc = UO_AddrOf; break; |
12204 | case tok::star: Opc = UO_Deref; break; |
12205 | case tok::plus: Opc = UO_Plus; break; |
12206 | case tok::minus: Opc = UO_Minus; break; |
12207 | case tok::tilde: Opc = UO_Not; break; |
12208 | case tok::exclaim: Opc = UO_LNot; break; |
12209 | case tok::kw___real: Opc = UO_Real; break; |
12210 | case tok::kw___imag: Opc = UO_Imag; break; |
12211 | case tok::kw___extension__: Opc = UO_Extension; break; |
12212 | } |
12213 | return Opc; |
12214 | } |
12215 | |
12216 | |
12217 | |
12218 | static void DiagnoseSelfAssignment(Sema &S, Expr *LHSExpr, Expr *RHSExpr, |
12219 | SourceLocation OpLoc, bool IsBuiltin) { |
12220 | if (S.inTemplateInstantiation()) |
12221 | return; |
12222 | if (S.isUnevaluatedContext()) |
12223 | return; |
12224 | if (OpLoc.isInvalid() || OpLoc.isMacroID()) |
12225 | return; |
12226 | LHSExpr = LHSExpr->IgnoreParenImpCasts(); |
12227 | RHSExpr = RHSExpr->IgnoreParenImpCasts(); |
12228 | const DeclRefExpr *LHSDeclRef = dyn_cast<DeclRefExpr>(LHSExpr); |
12229 | const DeclRefExpr *RHSDeclRef = dyn_cast<DeclRefExpr>(RHSExpr); |
12230 | if (!LHSDeclRef || !RHSDeclRef || |
12231 | LHSDeclRef->getLocation().isMacroID() || |
12232 | RHSDeclRef->getLocation().isMacroID()) |
12233 | return; |
12234 | const ValueDecl *LHSDecl = |
12235 | cast<ValueDecl>(LHSDeclRef->getDecl()->getCanonicalDecl()); |
12236 | const ValueDecl *RHSDecl = |
12237 | cast<ValueDecl>(RHSDeclRef->getDecl()->getCanonicalDecl()); |
12238 | if (LHSDecl != RHSDecl) |
12239 | return; |
12240 | if (LHSDecl->getType().isVolatileQualified()) |
12241 | return; |
12242 | if (const ReferenceType *RefTy = LHSDecl->getType()->getAs<ReferenceType>()) |
12243 | if (RefTy->getPointeeType().isVolatileQualified()) |
12244 | return; |
12245 | |
12246 | S.Diag(OpLoc, IsBuiltin ? diag::warn_self_assignment_builtin |
12247 | : diag::warn_self_assignment_overloaded) |
12248 | << LHSDeclRef->getType() << LHSExpr->getSourceRange() |
12249 | << RHSExpr->getSourceRange(); |
12250 | } |
12251 | |
12252 | |
12253 | |
12254 | static void checkObjCPointerIntrospection(Sema &S, ExprResult &L, ExprResult &R, |
12255 | SourceLocation OpLoc) { |
12256 | if (!S.getLangOpts().ObjC) |
12257 | return; |
12258 | |
12259 | const Expr *ObjCPointerExpr = nullptr, *OtherExpr = nullptr; |
12260 | const Expr *LHS = L.get(); |
12261 | const Expr *RHS = R.get(); |
12262 | |
12263 | if (LHS->IgnoreParenCasts()->getType()->isObjCObjectPointerType()) { |
12264 | ObjCPointerExpr = LHS; |
12265 | OtherExpr = RHS; |
12266 | } |
12267 | else if (RHS->IgnoreParenCasts()->getType()->isObjCObjectPointerType()) { |
12268 | ObjCPointerExpr = RHS; |
12269 | OtherExpr = LHS; |
12270 | } |
12271 | |
12272 | |
12273 | |
12274 | |
12275 | |
12276 | if (ObjCPointerExpr && isa<IntegerLiteral>(OtherExpr->IgnoreParenCasts())) { |
12277 | unsigned Diag = diag::warn_objc_pointer_masking; |
12278 | |
12279 | const Expr *Ex = ObjCPointerExpr->IgnoreParenCasts(); |
12280 | |
12281 | |
12282 | |
12283 | if (const ObjCMessageExpr *ME = dyn_cast<ObjCMessageExpr>(Ex)) { |
12284 | Selector S = ME->getSelector(); |
12285 | StringRef SelArg0 = S.getNameForSlot(0); |
12286 | if (SelArg0.startswith("performSelector")) |
12287 | Diag = diag::warn_objc_pointer_masking_performSelector; |
12288 | } |
12289 | |
12290 | S.Diag(OpLoc, Diag) |
12291 | << ObjCPointerExpr->getSourceRange(); |
12292 | } |
12293 | } |
12294 | |
12295 | static NamedDecl *getDeclFromExpr(Expr *E) { |
12296 | if (!E) |
12297 | return nullptr; |
12298 | if (auto *DRE = dyn_cast<DeclRefExpr>(E)) |
12299 | return DRE->getDecl(); |
12300 | if (auto *ME = dyn_cast<MemberExpr>(E)) |
12301 | return ME->getMemberDecl(); |
12302 | if (auto *IRE = dyn_cast<ObjCIvarRefExpr>(E)) |
12303 | return IRE->getDecl(); |
12304 | return nullptr; |
12305 | } |
12306 | |
12307 | |
12308 | |
12309 | |
12310 | static ExprResult convertHalfVecBinOp(Sema &S, ExprResult LHS, ExprResult RHS, |
12311 | BinaryOperatorKind Opc, QualType ResultTy, |
12312 | ExprValueKind VK, ExprObjectKind OK, |
12313 | bool IsCompAssign, SourceLocation OpLoc, |
12314 | FPOptions FPFeatures) { |
12315 | auto &Context = S.getASTContext(); |
12316 | (0) . __assert_fail ("(isVector(ResultTy, Context.HalfTy) || isVector(ResultTy, Context.ShortTy)) && \"Result must be a vector of half or short\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12318, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((isVector(ResultTy, Context.HalfTy) || |
12317 | (0) . __assert_fail ("(isVector(ResultTy, Context.HalfTy) || isVector(ResultTy, Context.ShortTy)) && \"Result must be a vector of half or short\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12318, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> isVector(ResultTy, Context.ShortTy)) && |
12318 | (0) . __assert_fail ("(isVector(ResultTy, Context.HalfTy) || isVector(ResultTy, Context.ShortTy)) && \"Result must be a vector of half or short\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12318, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Result must be a vector of half or short"); |
12319 | (0) . __assert_fail ("isVector(LHS.get()->getType(), Context.HalfTy) && isVector(RHS.get()->getType(), Context.HalfTy) && \"both operands expected to be a half vector\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12321, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isVector(LHS.get()->getType(), Context.HalfTy) && |
12320 | (0) . __assert_fail ("isVector(LHS.get()->getType(), Context.HalfTy) && isVector(RHS.get()->getType(), Context.HalfTy) && \"both operands expected to be a half vector\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12321, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> isVector(RHS.get()->getType(), Context.HalfTy) && |
12321 | (0) . __assert_fail ("isVector(LHS.get()->getType(), Context.HalfTy) && isVector(RHS.get()->getType(), Context.HalfTy) && \"both operands expected to be a half vector\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12321, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "both operands expected to be a half vector"); |
12322 | |
12323 | RHS = convertVector(RHS.get(), Context.FloatTy, S); |
12324 | QualType BinOpResTy = RHS.get()->getType(); |
12325 | |
12326 | |
12327 | |
12328 | if (isVector(ResultTy, Context.ShortTy)) |
12329 | BinOpResTy = S.GetSignedVectorType(BinOpResTy); |
12330 | |
12331 | if (IsCompAssign) |
12332 | return new (Context) CompoundAssignOperator( |
12333 | LHS.get(), RHS.get(), Opc, ResultTy, VK, OK, BinOpResTy, BinOpResTy, |
12334 | OpLoc, FPFeatures); |
12335 | |
12336 | LHS = convertVector(LHS.get(), Context.FloatTy, S); |
12337 | auto *BO = new (Context) BinaryOperator(LHS.get(), RHS.get(), Opc, BinOpResTy, |
12338 | VK, OK, OpLoc, FPFeatures); |
12339 | return convertVector(BO, ResultTy->getAs<VectorType>()->getElementType(), S); |
12340 | } |
12341 | |
12342 | static std::pair<ExprResult, ExprResult> |
12343 | CorrectDelayedTyposInBinOp(Sema &S, BinaryOperatorKind Opc, Expr *LHSExpr, |
12344 | Expr *RHSExpr) { |
12345 | ExprResult LHS = LHSExpr, RHS = RHSExpr; |
12346 | if (!S.getLangOpts().CPlusPlus) { |
12347 | |
12348 | |
12349 | |
12350 | LHS = S.CorrectDelayedTyposInExpr(LHS); |
12351 | RHS = S.CorrectDelayedTyposInExpr(RHS, [Opc, LHS](Expr *E) { |
12352 | if (Opc != BO_Assign) |
12353 | return ExprResult(E); |
12354 | |
12355 | Decl *D = getDeclFromExpr(E); |
12356 | return (D && D == getDeclFromExpr(LHS.get())) ? ExprError() : E; |
12357 | }); |
12358 | } |
12359 | return std::make_pair(LHS, RHS); |
12360 | } |
12361 | |
12362 | |
12363 | |
12364 | static bool needsConversionOfHalfVec(bool OpRequiresConversion, ASTContext &Ctx, |
12365 | QualType SrcType) { |
12366 | return OpRequiresConversion && !Ctx.getLangOpts().NativeHalfType && |
12367 | !Ctx.getTargetInfo().useFP16ConversionIntrinsics() && |
12368 | isVector(SrcType, Ctx.HalfTy); |
12369 | } |
12370 | |
12371 | |
12372 | |
12373 | |
12374 | ExprResult Sema::CreateBuiltinBinOp(SourceLocation OpLoc, |
12375 | BinaryOperatorKind Opc, |
12376 | Expr *LHSExpr, Expr *RHSExpr) { |
12377 | if (getLangOpts().CPlusPlus11 && isa<InitListExpr>(RHSExpr)) { |
12378 | |
12379 | |
12380 | |
12381 | |
12382 | |
12383 | |
12384 | InitializationKind Kind = InitializationKind::CreateDirectList( |
12385 | RHSExpr->getBeginLoc(), RHSExpr->getBeginLoc(), RHSExpr->getEndLoc()); |
12386 | InitializedEntity Entity = |
12387 | InitializedEntity::InitializeTemporary(LHSExpr->getType()); |
12388 | InitializationSequence InitSeq(*this, Entity, Kind, RHSExpr); |
12389 | ExprResult Init = InitSeq.Perform(*this, Entity, Kind, RHSExpr); |
12390 | if (Init.isInvalid()) |
12391 | return Init; |
12392 | RHSExpr = Init.get(); |
12393 | } |
12394 | |
12395 | ExprResult LHS = LHSExpr, RHS = RHSExpr; |
12396 | QualType ResultTy; |
12397 | |
12398 | QualType CompLHSTy; |
12399 | QualType CompResultTy; |
12400 | ExprValueKind VK = VK_RValue; |
12401 | ExprObjectKind OK = OK_Ordinary; |
12402 | bool ConvertHalfVec = false; |
12403 | |
12404 | std::tie(LHS, RHS) = CorrectDelayedTyposInBinOp(*this, Opc, LHSExpr, RHSExpr); |
12405 | if (!LHS.isUsable() || !RHS.isUsable()) |
12406 | return ExprError(); |
12407 | |
12408 | if (getLangOpts().OpenCL) { |
12409 | QualType LHSTy = LHSExpr->getType(); |
12410 | QualType RHSTy = RHSExpr->getType(); |
12411 | |
12412 | |
12413 | if (LHSTy->isAtomicType() || RHSTy->isAtomicType()) { |
12414 | SourceRange SR(LHSExpr->getBeginLoc(), RHSExpr->getEndLoc()); |
12415 | if (BO_Assign == Opc) |
12416 | Diag(OpLoc, diag::err_opencl_atomic_init) << 0 << SR; |
12417 | else |
12418 | ResultTy = InvalidOperands(OpLoc, LHS, RHS); |
12419 | return ExprError(); |
12420 | } |
12421 | |
12422 | |
12423 | |
12424 | if (LHSTy->isImageType() || RHSTy->isImageType() || |
12425 | LHSTy->isSamplerT() || RHSTy->isSamplerT() || |
12426 | LHSTy->isPipeType() || RHSTy->isPipeType() || |
12427 | LHSTy->isBlockPointerType() || RHSTy->isBlockPointerType()) { |
12428 | ResultTy = InvalidOperands(OpLoc, LHS, RHS); |
12429 | return ExprError(); |
12430 | } |
12431 | } |
12432 | |
12433 | |
12434 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) { |
12435 | if (Opc != BO_Assign && Opc != BO_Comma) { |
12436 | checkOpenMPDeviceExpr(LHSExpr); |
12437 | checkOpenMPDeviceExpr(RHSExpr); |
12438 | } |
12439 | } |
12440 | |
12441 | switch (Opc) { |
12442 | case BO_Assign: |
12443 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, QualType()); |
12444 | if (getLangOpts().CPlusPlus && |
12445 | LHS.get()->getObjectKind() != OK_ObjCProperty) { |
12446 | VK = LHS.get()->getValueKind(); |
12447 | OK = LHS.get()->getObjectKind(); |
12448 | } |
12449 | if (!ResultTy.isNull()) { |
12450 | DiagnoseSelfAssignment(*this, LHS.get(), RHS.get(), OpLoc, true); |
12451 | DiagnoseSelfMove(LHS.get(), RHS.get(), OpLoc); |
12452 | |
12453 | |
12454 | |
12455 | |
12456 | |
12457 | |
12458 | |
12459 | |
12460 | |
12461 | |
12462 | |
12463 | |
12464 | |
12465 | |
12466 | if (auto *BE = dyn_cast<BlockExpr>(RHS.get()->IgnoreParens())) |
12467 | if (auto *DRE = dyn_cast<DeclRefExpr>(LHS.get()->IgnoreParens())) |
12468 | if (auto *VD = dyn_cast<VarDecl>(DRE->getDecl())) |
12469 | if (VD->hasLocalStorage() && getCurScope()->isDeclScope(VD)) |
12470 | BE->getBlockDecl()->setCanAvoidCopyToHeap(); |
12471 | } |
12472 | RecordModifiableNonNullParam(*this, LHS.get()); |
12473 | break; |
12474 | case BO_PtrMemD: |
12475 | case BO_PtrMemI: |
12476 | ResultTy = CheckPointerToMemberOperands(LHS, RHS, VK, OpLoc, |
12477 | Opc == BO_PtrMemI); |
12478 | break; |
12479 | case BO_Mul: |
12480 | case BO_Div: |
12481 | ConvertHalfVec = true; |
12482 | ResultTy = CheckMultiplyDivideOperands(LHS, RHS, OpLoc, false, |
12483 | Opc == BO_Div); |
12484 | break; |
12485 | case BO_Rem: |
12486 | ResultTy = CheckRemainderOperands(LHS, RHS, OpLoc); |
12487 | break; |
12488 | case BO_Add: |
12489 | ConvertHalfVec = true; |
12490 | ResultTy = CheckAdditionOperands(LHS, RHS, OpLoc, Opc); |
12491 | break; |
12492 | case BO_Sub: |
12493 | ConvertHalfVec = true; |
12494 | ResultTy = CheckSubtractionOperands(LHS, RHS, OpLoc); |
12495 | break; |
12496 | case BO_Shl: |
12497 | case BO_Shr: |
12498 | ResultTy = CheckShiftOperands(LHS, RHS, OpLoc, Opc); |
12499 | break; |
12500 | case BO_LE: |
12501 | case BO_LT: |
12502 | case BO_GE: |
12503 | case BO_GT: |
12504 | ConvertHalfVec = true; |
12505 | ResultTy = CheckCompareOperands(LHS, RHS, OpLoc, Opc); |
12506 | break; |
12507 | case BO_EQ: |
12508 | case BO_NE: |
12509 | ConvertHalfVec = true; |
12510 | ResultTy = CheckCompareOperands(LHS, RHS, OpLoc, Opc); |
12511 | break; |
12512 | case BO_Cmp: |
12513 | ConvertHalfVec = true; |
12514 | ResultTy = CheckCompareOperands(LHS, RHS, OpLoc, Opc); |
12515 | getAsCXXRecordDecl()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12515, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ResultTy.isNull() || ResultTy->getAsCXXRecordDecl()); |
12516 | break; |
12517 | case BO_And: |
12518 | checkObjCPointerIntrospection(*this, LHS, RHS, OpLoc); |
12519 | LLVM_FALLTHROUGH; |
12520 | case BO_Xor: |
12521 | case BO_Or: |
12522 | ResultTy = CheckBitwiseOperands(LHS, RHS, OpLoc, Opc); |
12523 | break; |
12524 | case BO_LAnd: |
12525 | case BO_LOr: |
12526 | ConvertHalfVec = true; |
12527 | ResultTy = CheckLogicalOperands(LHS, RHS, OpLoc, Opc); |
12528 | break; |
12529 | case BO_MulAssign: |
12530 | case BO_DivAssign: |
12531 | ConvertHalfVec = true; |
12532 | CompResultTy = CheckMultiplyDivideOperands(LHS, RHS, OpLoc, true, |
12533 | Opc == BO_DivAssign); |
12534 | CompLHSTy = CompResultTy; |
12535 | if (!CompResultTy.isNull() && !LHS.isInvalid() && !RHS.isInvalid()) |
12536 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, CompResultTy); |
12537 | break; |
12538 | case BO_RemAssign: |
12539 | CompResultTy = CheckRemainderOperands(LHS, RHS, OpLoc, true); |
12540 | CompLHSTy = CompResultTy; |
12541 | if (!CompResultTy.isNull() && !LHS.isInvalid() && !RHS.isInvalid()) |
12542 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, CompResultTy); |
12543 | break; |
12544 | case BO_AddAssign: |
12545 | ConvertHalfVec = true; |
12546 | CompResultTy = CheckAdditionOperands(LHS, RHS, OpLoc, Opc, &CompLHSTy); |
12547 | if (!CompResultTy.isNull() && !LHS.isInvalid() && !RHS.isInvalid()) |
12548 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, CompResultTy); |
12549 | break; |
12550 | case BO_SubAssign: |
12551 | ConvertHalfVec = true; |
12552 | CompResultTy = CheckSubtractionOperands(LHS, RHS, OpLoc, &CompLHSTy); |
12553 | if (!CompResultTy.isNull() && !LHS.isInvalid() && !RHS.isInvalid()) |
12554 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, CompResultTy); |
12555 | break; |
12556 | case BO_ShlAssign: |
12557 | case BO_ShrAssign: |
12558 | CompResultTy = CheckShiftOperands(LHS, RHS, OpLoc, Opc, true); |
12559 | CompLHSTy = CompResultTy; |
12560 | if (!CompResultTy.isNull() && !LHS.isInvalid() && !RHS.isInvalid()) |
12561 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, CompResultTy); |
12562 | break; |
12563 | case BO_AndAssign: |
12564 | case BO_OrAssign: |
12565 | DiagnoseSelfAssignment(*this, LHS.get(), RHS.get(), OpLoc, true); |
12566 | LLVM_FALLTHROUGH; |
12567 | case BO_XorAssign: |
12568 | CompResultTy = CheckBitwiseOperands(LHS, RHS, OpLoc, Opc); |
12569 | CompLHSTy = CompResultTy; |
12570 | if (!CompResultTy.isNull() && !LHS.isInvalid() && !RHS.isInvalid()) |
12571 | ResultTy = CheckAssignmentOperands(LHS.get(), RHS, OpLoc, CompResultTy); |
12572 | break; |
12573 | case BO_Comma: |
12574 | ResultTy = CheckCommaOperands(*this, LHS, RHS, OpLoc); |
12575 | if (getLangOpts().CPlusPlus && !RHS.isInvalid()) { |
12576 | VK = RHS.get()->getValueKind(); |
12577 | OK = RHS.get()->getObjectKind(); |
12578 | } |
12579 | break; |
12580 | } |
12581 | if (ResultTy.isNull() || LHS.isInvalid() || RHS.isInvalid()) |
12582 | return ExprError(); |
12583 | |
12584 | |
12585 | |
12586 | |
12587 | |
12588 | (0) . __assert_fail ("isVector(RHS.get()->getType(), Context.HalfTy) == isVector(LHS.get()->getType(), Context.HalfTy) && \"both sides are half vectors or neither sides are\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12590, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isVector(RHS.get()->getType(), Context.HalfTy) == |
12589 | (0) . __assert_fail ("isVector(RHS.get()->getType(), Context.HalfTy) == isVector(LHS.get()->getType(), Context.HalfTy) && \"both sides are half vectors or neither sides are\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12590, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> isVector(LHS.get()->getType(), Context.HalfTy) && |
12590 | (0) . __assert_fail ("isVector(RHS.get()->getType(), Context.HalfTy) == isVector(LHS.get()->getType(), Context.HalfTy) && \"both sides are half vectors or neither sides are\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12590, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "both sides are half vectors or neither sides are"); |
12591 | ConvertHalfVec = needsConversionOfHalfVec(ConvertHalfVec, Context, |
12592 | LHS.get()->getType()); |
12593 | |
12594 | |
12595 | CheckArrayAccess(LHS.get()); |
12596 | CheckArrayAccess(RHS.get()); |
12597 | |
12598 | if (const ObjCIsaExpr *OISA = dyn_cast<ObjCIsaExpr>(LHS.get()->IgnoreParenCasts())) { |
12599 | NamedDecl *ObjectSetClass = LookupSingleName(TUScope, |
12600 | &Context.Idents.get("object_setClass"), |
12601 | SourceLocation(), LookupOrdinaryName); |
12602 | if (ObjectSetClass && isa<ObjCIsaExpr>(LHS.get())) { |
12603 | SourceLocation RHSLocEnd = getLocForEndOfToken(RHS.get()->getEndLoc()); |
12604 | Diag(LHS.get()->getExprLoc(), diag::warn_objc_isa_assign) |
12605 | << FixItHint::CreateInsertion(LHS.get()->getBeginLoc(), |
12606 | "object_setClass(") |
12607 | << FixItHint::CreateReplacement(SourceRange(OISA->getOpLoc(), OpLoc), |
12608 | ",") |
12609 | << FixItHint::CreateInsertion(RHSLocEnd, ")"); |
12610 | } |
12611 | else |
12612 | Diag(LHS.get()->getExprLoc(), diag::warn_objc_isa_assign); |
12613 | } |
12614 | else if (const ObjCIvarRefExpr *OIRE = |
12615 | dyn_cast<ObjCIvarRefExpr>(LHS.get()->IgnoreParenCasts())) |
12616 | DiagnoseDirectIsaAccess(*this, OIRE, OpLoc, RHS.get()); |
12617 | |
12618 | |
12619 | if (CompResultTy.isNull()) { |
12620 | if (ConvertHalfVec) |
12621 | return convertHalfVecBinOp(*this, LHS, RHS, Opc, ResultTy, VK, OK, false, |
12622 | OpLoc, FPFeatures); |
12623 | return new (Context) BinaryOperator(LHS.get(), RHS.get(), Opc, ResultTy, VK, |
12624 | OK, OpLoc, FPFeatures); |
12625 | } |
12626 | |
12627 | |
12628 | if (getLangOpts().CPlusPlus && LHS.get()->getObjectKind() != |
12629 | OK_ObjCProperty) { |
12630 | VK = VK_LValue; |
12631 | OK = LHS.get()->getObjectKind(); |
12632 | } |
12633 | |
12634 | if (ConvertHalfVec) |
12635 | return convertHalfVecBinOp(*this, LHS, RHS, Opc, ResultTy, VK, OK, true, |
12636 | OpLoc, FPFeatures); |
12637 | |
12638 | return new (Context) CompoundAssignOperator( |
12639 | LHS.get(), RHS.get(), Opc, ResultTy, VK, OK, CompLHSTy, CompResultTy, |
12640 | OpLoc, FPFeatures); |
12641 | } |
12642 | |
12643 | |
12644 | |
12645 | |
12646 | |
12647 | static void DiagnoseBitwisePrecedence(Sema &Self, BinaryOperatorKind Opc, |
12648 | SourceLocation OpLoc, Expr *LHSExpr, |
12649 | Expr *RHSExpr) { |
12650 | BinaryOperator *LHSBO = dyn_cast<BinaryOperator>(LHSExpr); |
12651 | BinaryOperator *RHSBO = dyn_cast<BinaryOperator>(RHSExpr); |
12652 | |
12653 | |
12654 | bool isLeftComp = LHSBO && LHSBO->isComparisonOp(); |
12655 | bool isRightComp = RHSBO && RHSBO->isComparisonOp(); |
12656 | if (isLeftComp == isRightComp) |
12657 | return; |
12658 | |
12659 | |
12660 | |
12661 | bool isLeftBitwise = LHSBO && LHSBO->isBitwiseOp(); |
12662 | bool isRightBitwise = RHSBO && RHSBO->isBitwiseOp(); |
12663 | if (isLeftBitwise || isRightBitwise) |
12664 | return; |
12665 | |
12666 | SourceRange DiagRange = isLeftComp |
12667 | ? SourceRange(LHSExpr->getBeginLoc(), OpLoc) |
12668 | : SourceRange(OpLoc, RHSExpr->getEndLoc()); |
12669 | StringRef OpStr = isLeftComp ? LHSBO->getOpcodeStr() : RHSBO->getOpcodeStr(); |
12670 | SourceRange ParensRange = |
12671 | isLeftComp |
12672 | ? SourceRange(LHSBO->getRHS()->getBeginLoc(), RHSExpr->getEndLoc()) |
12673 | : SourceRange(LHSExpr->getBeginLoc(), RHSBO->getLHS()->getEndLoc()); |
12674 | |
12675 | Self.Diag(OpLoc, diag::warn_precedence_bitwise_rel) |
12676 | << DiagRange << BinaryOperator::getOpcodeStr(Opc) << OpStr; |
12677 | SuggestParentheses(Self, OpLoc, |
12678 | Self.PDiag(diag::note_precedence_silence) << OpStr, |
12679 | (isLeftComp ? LHSExpr : RHSExpr)->getSourceRange()); |
12680 | SuggestParentheses(Self, OpLoc, |
12681 | Self.PDiag(diag::note_precedence_bitwise_first) |
12682 | << BinaryOperator::getOpcodeStr(Opc), |
12683 | ParensRange); |
12684 | } |
12685 | |
12686 | |
12687 | |
12688 | |
12689 | static void |
12690 | EmitDiagnosticForLogicalAndInLogicalOr(Sema &Self, SourceLocation OpLoc, |
12691 | BinaryOperator *Bop) { |
12692 | getOpcode() == BO_LAnd", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12692, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Bop->getOpcode() == BO_LAnd); |
12693 | Self.Diag(Bop->getOperatorLoc(), diag::warn_logical_and_in_logical_or) |
12694 | << Bop->getSourceRange() << OpLoc; |
12695 | SuggestParentheses(Self, Bop->getOperatorLoc(), |
12696 | Self.PDiag(diag::note_precedence_silence) |
12697 | << Bop->getOpcodeStr(), |
12698 | Bop->getSourceRange()); |
12699 | } |
12700 | |
12701 | |
12702 | |
12703 | static bool EvaluatesAsTrue(Sema &S, Expr *E) { |
12704 | bool Res; |
12705 | return !E->isValueDependent() && |
12706 | E->EvaluateAsBooleanCondition(Res, S.getASTContext()) && Res; |
12707 | } |
12708 | |
12709 | |
12710 | |
12711 | static bool EvaluatesAsFalse(Sema &S, Expr *E) { |
12712 | bool Res; |
12713 | return !E->isValueDependent() && |
12714 | E->EvaluateAsBooleanCondition(Res, S.getASTContext()) && !Res; |
12715 | } |
12716 | |
12717 | |
12718 | static void DiagnoseLogicalAndInLogicalOrLHS(Sema &S, SourceLocation OpLoc, |
12719 | Expr *LHSExpr, Expr *RHSExpr) { |
12720 | if (BinaryOperator *Bop = dyn_cast<BinaryOperator>(LHSExpr)) { |
12721 | if (Bop->getOpcode() == BO_LAnd) { |
12722 | |
12723 | if (EvaluatesAsFalse(S, RHSExpr)) |
12724 | return; |
12725 | |
12726 | if (!EvaluatesAsTrue(S, Bop->getLHS())) |
12727 | return EmitDiagnosticForLogicalAndInLogicalOr(S, OpLoc, Bop); |
12728 | } else if (Bop->getOpcode() == BO_LOr) { |
12729 | if (BinaryOperator *RBop = dyn_cast<BinaryOperator>(Bop->getRHS())) { |
12730 | |
12731 | |
12732 | if (RBop->getOpcode() == BO_LAnd && EvaluatesAsTrue(S, RBop->getRHS())) |
12733 | return EmitDiagnosticForLogicalAndInLogicalOr(S, OpLoc, RBop); |
12734 | } |
12735 | } |
12736 | } |
12737 | } |
12738 | |
12739 | |
12740 | static void DiagnoseLogicalAndInLogicalOrRHS(Sema &S, SourceLocation OpLoc, |
12741 | Expr *LHSExpr, Expr *RHSExpr) { |
12742 | if (BinaryOperator *Bop = dyn_cast<BinaryOperator>(RHSExpr)) { |
12743 | if (Bop->getOpcode() == BO_LAnd) { |
12744 | |
12745 | if (EvaluatesAsFalse(S, LHSExpr)) |
12746 | return; |
12747 | |
12748 | if (!EvaluatesAsTrue(S, Bop->getRHS())) |
12749 | return EmitDiagnosticForLogicalAndInLogicalOr(S, OpLoc, Bop); |
12750 | } |
12751 | } |
12752 | } |
12753 | |
12754 | |
12755 | |
12756 | |
12757 | static void DiagnoseBitwiseOpInBitwiseOp(Sema &S, BinaryOperatorKind Opc, |
12758 | SourceLocation OpLoc, Expr *SubExpr) { |
12759 | if (BinaryOperator *Bop = dyn_cast<BinaryOperator>(SubExpr)) { |
12760 | if (Bop->isBitwiseOp() && Bop->getOpcode() < Opc) { |
12761 | S.Diag(Bop->getOperatorLoc(), diag::warn_bitwise_op_in_bitwise_op) |
12762 | << Bop->getOpcodeStr() << BinaryOperator::getOpcodeStr(Opc) |
12763 | << Bop->getSourceRange() << OpLoc; |
12764 | SuggestParentheses(S, Bop->getOperatorLoc(), |
12765 | S.PDiag(diag::note_precedence_silence) |
12766 | << Bop->getOpcodeStr(), |
12767 | Bop->getSourceRange()); |
12768 | } |
12769 | } |
12770 | } |
12771 | |
12772 | static void DiagnoseAdditionInShift(Sema &S, SourceLocation OpLoc, |
12773 | Expr *SubExpr, StringRef Shift) { |
12774 | if (BinaryOperator *Bop = dyn_cast<BinaryOperator>(SubExpr)) { |
12775 | if (Bop->getOpcode() == BO_Add || Bop->getOpcode() == BO_Sub) { |
12776 | StringRef Op = Bop->getOpcodeStr(); |
12777 | S.Diag(Bop->getOperatorLoc(), diag::warn_addition_in_bitshift) |
12778 | << Bop->getSourceRange() << OpLoc << Shift << Op; |
12779 | SuggestParentheses(S, Bop->getOperatorLoc(), |
12780 | S.PDiag(diag::note_precedence_silence) << Op, |
12781 | Bop->getSourceRange()); |
12782 | } |
12783 | } |
12784 | } |
12785 | |
12786 | static void DiagnoseShiftCompare(Sema &S, SourceLocation OpLoc, |
12787 | Expr *LHSExpr, Expr *RHSExpr) { |
12788 | CXXOperatorCallExpr *OCE = dyn_cast<CXXOperatorCallExpr>(LHSExpr); |
12789 | if (!OCE) |
12790 | return; |
12791 | |
12792 | FunctionDecl *FD = OCE->getDirectCallee(); |
12793 | if (!FD || !FD->isOverloadedOperator()) |
12794 | return; |
12795 | |
12796 | OverloadedOperatorKind Kind = FD->getOverloadedOperator(); |
12797 | if (Kind != OO_LessLess && Kind != OO_GreaterGreater) |
12798 | return; |
12799 | |
12800 | S.Diag(OpLoc, diag::warn_overloaded_shift_in_comparison) |
12801 | << LHSExpr->getSourceRange() << RHSExpr->getSourceRange() |
12802 | << (Kind == OO_LessLess); |
12803 | SuggestParentheses(S, OCE->getOperatorLoc(), |
12804 | S.PDiag(diag::note_precedence_silence) |
12805 | << (Kind == OO_LessLess ? "<<" : ">>"), |
12806 | OCE->getSourceRange()); |
12807 | SuggestParentheses( |
12808 | S, OpLoc, S.PDiag(diag::note_evaluate_comparison_first), |
12809 | SourceRange(OCE->getArg(1)->getBeginLoc(), RHSExpr->getEndLoc())); |
12810 | } |
12811 | |
12812 | |
12813 | |
12814 | static void DiagnoseBinOpPrecedence(Sema &Self, BinaryOperatorKind Opc, |
12815 | SourceLocation OpLoc, Expr *LHSExpr, |
12816 | Expr *RHSExpr){ |
12817 | |
12818 | if (BinaryOperator::isBitwiseOp(Opc)) |
12819 | DiagnoseBitwisePrecedence(Self, Opc, OpLoc, LHSExpr, RHSExpr); |
12820 | |
12821 | |
12822 | if ((Opc == BO_Or || Opc == BO_Xor) && |
12823 | !OpLoc.isMacroID()) { |
12824 | DiagnoseBitwiseOpInBitwiseOp(Self, Opc, OpLoc, LHSExpr); |
12825 | DiagnoseBitwiseOpInBitwiseOp(Self, Opc, OpLoc, RHSExpr); |
12826 | } |
12827 | |
12828 | |
12829 | |
12830 | if (Opc == BO_LOr && !OpLoc.isMacroID()) { |
12831 | DiagnoseLogicalAndInLogicalOrLHS(Self, OpLoc, LHSExpr, RHSExpr); |
12832 | DiagnoseLogicalAndInLogicalOrRHS(Self, OpLoc, LHSExpr, RHSExpr); |
12833 | } |
12834 | |
12835 | if ((Opc == BO_Shl && LHSExpr->getType()->isIntegralType(Self.getASTContext())) |
12836 | || Opc == BO_Shr) { |
12837 | StringRef Shift = BinaryOperator::getOpcodeStr(Opc); |
12838 | DiagnoseAdditionInShift(Self, OpLoc, LHSExpr, Shift); |
12839 | DiagnoseAdditionInShift(Self, OpLoc, RHSExpr, Shift); |
12840 | } |
12841 | |
12842 | |
12843 | |
12844 | if (BinaryOperator::isComparisonOp(Opc)) |
12845 | DiagnoseShiftCompare(Self, OpLoc, LHSExpr, RHSExpr); |
12846 | } |
12847 | |
12848 | |
12849 | ExprResult Sema::ActOnBinOp(Scope *S, SourceLocation TokLoc, |
12850 | tok::TokenKind Kind, |
12851 | Expr *LHSExpr, Expr *RHSExpr) { |
12852 | BinaryOperatorKind Opc = ConvertTokenKindToBinaryOpcode(Kind); |
12853 | (0) . __assert_fail ("LHSExpr && \"ActOnBinOp(). missing left expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12853, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(LHSExpr && "ActOnBinOp(): missing left expression"); |
12854 | (0) . __assert_fail ("RHSExpr && \"ActOnBinOp(). missing right expression\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 12854, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(RHSExpr && "ActOnBinOp(): missing right expression"); |
12855 | |
12856 | |
12857 | DiagnoseBinOpPrecedence(*this, Opc, TokLoc, LHSExpr, RHSExpr); |
12858 | |
12859 | return BuildBinOp(S, TokLoc, Opc, LHSExpr, RHSExpr); |
12860 | } |
12861 | |
12862 | |
12863 | static ExprResult BuildOverloadedBinOp(Sema &S, Scope *Sc, SourceLocation OpLoc, |
12864 | BinaryOperatorKind Opc, |
12865 | Expr *LHS, Expr *RHS) { |
12866 | switch (Opc) { |
12867 | case BO_Assign: |
12868 | case BO_DivAssign: |
12869 | case BO_RemAssign: |
12870 | case BO_SubAssign: |
12871 | case BO_AndAssign: |
12872 | case BO_OrAssign: |
12873 | case BO_XorAssign: |
12874 | DiagnoseSelfAssignment(S, LHS, RHS, OpLoc, false); |
12875 | CheckIdentityFieldAssignment(LHS, RHS, OpLoc, S); |
12876 | break; |
12877 | default: |
12878 | break; |
12879 | } |
12880 | |
12881 | |
12882 | |
12883 | |
12884 | |
12885 | UnresolvedSet<16> Functions; |
12886 | OverloadedOperatorKind OverOp |
12887 | = BinaryOperator::getOverloadedOperator(Opc); |
12888 | if (Sc && OverOp != OO_None && OverOp != OO_Equal) |
12889 | S.LookupOverloadedOperatorName(OverOp, Sc, LHS->getType(), |
12890 | RHS->getType(), Functions); |
12891 | |
12892 | |
12893 | |
12894 | return S.CreateOverloadedBinOp(OpLoc, Opc, Functions, LHS, RHS); |
12895 | } |
12896 | |
12897 | ExprResult Sema::BuildBinOp(Scope *S, SourceLocation OpLoc, |
12898 | BinaryOperatorKind Opc, |
12899 | Expr *LHSExpr, Expr *RHSExpr) { |
12900 | ExprResult LHS, RHS; |
12901 | std::tie(LHS, RHS) = CorrectDelayedTyposInBinOp(*this, Opc, LHSExpr, RHSExpr); |
12902 | if (!LHS.isUsable() || !RHS.isUsable()) |
12903 | return ExprError(); |
12904 | LHSExpr = LHS.get(); |
12905 | RHSExpr = RHS.get(); |
12906 | |
12907 | |
12908 | |
12909 | |
12910 | |
12911 | |
12912 | |
12913 | |
12914 | if (const BuiltinType *pty = LHSExpr->getType()->getAsPlaceholderType()) { |
12915 | |
12916 | if (pty->getKind() == BuiltinType::PseudoObject && |
12917 | BinaryOperator::isAssignmentOp(Opc)) |
12918 | return checkPseudoObjectAssignment(S, OpLoc, Opc, LHSExpr, RHSExpr); |
12919 | |
12920 | |
12921 | if (getLangOpts().CPlusPlus && pty->getKind() == BuiltinType::Overload) { |
12922 | |
12923 | |
12924 | |
12925 | |
12926 | |
12927 | ExprResult resolvedRHS = CheckPlaceholderExpr(RHSExpr); |
12928 | if (resolvedRHS.isInvalid()) return ExprError(); |
12929 | RHSExpr = resolvedRHS.get(); |
12930 | |
12931 | if (RHSExpr->isTypeDependent() || |
12932 | RHSExpr->getType()->isOverloadableType()) |
12933 | return BuildOverloadedBinOp(*this, S, OpLoc, Opc, LHSExpr, RHSExpr); |
12934 | } |
12935 | |
12936 | |
12937 | |
12938 | |
12939 | |
12940 | |
12941 | |
12942 | if (Opc == BO_LT && inTemplateInstantiation() && |
12943 | (pty->getKind() == BuiltinType::BoundMember || |
12944 | pty->getKind() == BuiltinType::Overload)) { |
12945 | auto *OE = dyn_cast<OverloadExpr>(LHSExpr); |
12946 | if (OE && !OE->hasTemplateKeyword() && !OE->hasExplicitTemplateArgs() && |
12947 | std::any_of(OE->decls_begin(), OE->decls_end(), [](NamedDecl *ND) { |
12948 | return isa<FunctionTemplateDecl>(ND); |
12949 | })) { |
12950 | Diag(OE->getQualifier() ? OE->getQualifierLoc().getBeginLoc() |
12951 | : OE->getNameLoc(), |
12952 | diag::err_template_kw_missing) |
12953 | << OE->getName().getAsString() << ""; |
12954 | return ExprError(); |
12955 | } |
12956 | } |
12957 | |
12958 | ExprResult LHS = CheckPlaceholderExpr(LHSExpr); |
12959 | if (LHS.isInvalid()) return ExprError(); |
12960 | LHSExpr = LHS.get(); |
12961 | } |
12962 | |
12963 | |
12964 | if (const BuiltinType *pty = RHSExpr->getType()->getAsPlaceholderType()) { |
12965 | |
12966 | |
12967 | if (Opc == BO_Assign && pty->getKind() == BuiltinType::Overload) { |
12968 | if (getLangOpts().CPlusPlus && |
12969 | (LHSExpr->isTypeDependent() || RHSExpr->isTypeDependent() || |
12970 | LHSExpr->getType()->isOverloadableType())) |
12971 | return BuildOverloadedBinOp(*this, S, OpLoc, Opc, LHSExpr, RHSExpr); |
12972 | |
12973 | return CreateBuiltinBinOp(OpLoc, Opc, LHSExpr, RHSExpr); |
12974 | } |
12975 | |
12976 | |
12977 | if (getLangOpts().CPlusPlus && pty->getKind() == BuiltinType::Overload && |
12978 | LHSExpr->getType()->isOverloadableType()) |
12979 | return BuildOverloadedBinOp(*this, S, OpLoc, Opc, LHSExpr, RHSExpr); |
12980 | |
12981 | ExprResult resolvedRHS = CheckPlaceholderExpr(RHSExpr); |
12982 | if (!resolvedRHS.isUsable()) return ExprError(); |
12983 | RHSExpr = resolvedRHS.get(); |
12984 | } |
12985 | |
12986 | if (getLangOpts().CPlusPlus) { |
12987 | |
12988 | |
12989 | if (LHSExpr->isTypeDependent() || RHSExpr->isTypeDependent()) |
12990 | return BuildOverloadedBinOp(*this, S, OpLoc, Opc, LHSExpr, RHSExpr); |
12991 | |
12992 | |
12993 | |
12994 | if (LHSExpr->getType()->isOverloadableType() || |
12995 | RHSExpr->getType()->isOverloadableType()) |
12996 | return BuildOverloadedBinOp(*this, S, OpLoc, Opc, LHSExpr, RHSExpr); |
12997 | } |
12998 | |
12999 | |
13000 | return CreateBuiltinBinOp(OpLoc, Opc, LHSExpr, RHSExpr); |
13001 | } |
13002 | |
13003 | static bool isOverflowingIntegerType(ASTContext &Ctx, QualType T) { |
13004 | if (T.isNull() || T->isDependentType()) |
13005 | return false; |
13006 | |
13007 | if (!T->isPromotableIntegerType()) |
13008 | return true; |
13009 | |
13010 | return Ctx.getIntWidth(T) >= Ctx.getIntWidth(Ctx.IntTy); |
13011 | } |
13012 | |
13013 | ExprResult Sema::CreateBuiltinUnaryOp(SourceLocation OpLoc, |
13014 | UnaryOperatorKind Opc, |
13015 | Expr *InputExpr) { |
13016 | ExprResult Input = InputExpr; |
13017 | ExprValueKind VK = VK_RValue; |
13018 | ExprObjectKind OK = OK_Ordinary; |
13019 | QualType resultType; |
13020 | bool CanOverflow = false; |
13021 | |
13022 | bool ConvertHalfVec = false; |
13023 | if (getLangOpts().OpenCL) { |
13024 | QualType Ty = InputExpr->getType(); |
13025 | |
13026 | if ((Opc != UO_AddrOf && Ty->isAtomicType()) || |
13027 | |
13028 | |
13029 | (Ty->isImageType() || Ty->isSamplerT() || Ty->isPipeType() |
13030 | || Ty->isBlockPointerType())) { |
13031 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13032 | << InputExpr->getType() |
13033 | << Input.get()->getSourceRange()); |
13034 | } |
13035 | } |
13036 | |
13037 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) { |
13038 | if (UnaryOperator::isIncrementDecrementOp(Opc) || |
13039 | UnaryOperator::isArithmeticOp(Opc)) |
13040 | checkOpenMPDeviceExpr(InputExpr); |
13041 | } |
13042 | |
13043 | switch (Opc) { |
13044 | case UO_PreInc: |
13045 | case UO_PreDec: |
13046 | case UO_PostInc: |
13047 | case UO_PostDec: |
13048 | resultType = CheckIncrementDecrementOperand(*this, Input.get(), VK, OK, |
13049 | OpLoc, |
13050 | Opc == UO_PreInc || |
13051 | Opc == UO_PostInc, |
13052 | Opc == UO_PreInc || |
13053 | Opc == UO_PreDec); |
13054 | CanOverflow = isOverflowingIntegerType(Context, resultType); |
13055 | break; |
13056 | case UO_AddrOf: |
13057 | resultType = CheckAddressOfOperand(Input, OpLoc); |
13058 | CheckAddressOfNoDeref(InputExpr); |
13059 | RecordModifiableNonNullParam(*this, InputExpr); |
13060 | break; |
13061 | case UO_Deref: { |
13062 | Input = DefaultFunctionArrayLvalueConversion(Input.get()); |
13063 | if (Input.isInvalid()) return ExprError(); |
13064 | resultType = CheckIndirectionOperand(*this, Input.get(), VK, OpLoc); |
13065 | break; |
13066 | } |
13067 | case UO_Plus: |
13068 | case UO_Minus: |
13069 | CanOverflow = Opc == UO_Minus && |
13070 | isOverflowingIntegerType(Context, Input.get()->getType()); |
13071 | Input = UsualUnaryConversions(Input.get()); |
13072 | if (Input.isInvalid()) return ExprError(); |
13073 | |
13074 | |
13075 | |
13076 | |
13077 | ConvertHalfVec = |
13078 | needsConversionOfHalfVec(true, Context, Input.get()->getType()); |
13079 | |
13080 | |
13081 | if (ConvertHalfVec) |
13082 | Input = convertVector(Input.get(), Context.FloatTy, *this); |
13083 | resultType = Input.get()->getType(); |
13084 | if (resultType->isDependentType()) |
13085 | break; |
13086 | if (resultType->isArithmeticType()) |
13087 | break; |
13088 | else if (resultType->isVectorType() && |
13089 | |
13090 | (!Context.getLangOpts().ZVector || |
13091 | resultType->getAs<VectorType>()->getVectorKind() != |
13092 | VectorType::AltiVecBool)) |
13093 | break; |
13094 | else if (getLangOpts().CPlusPlus && |
13095 | Opc == UO_Plus && |
13096 | resultType->isPointerType()) |
13097 | break; |
13098 | |
13099 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13100 | << resultType << Input.get()->getSourceRange()); |
13101 | |
13102 | case UO_Not: |
13103 | Input = UsualUnaryConversions(Input.get()); |
13104 | if (Input.isInvalid()) |
13105 | return ExprError(); |
13106 | resultType = Input.get()->getType(); |
13107 | |
13108 | if (resultType->isDependentType()) |
13109 | break; |
13110 | |
13111 | if (resultType->isComplexType() || resultType->isComplexIntegerType()) |
13112 | |
13113 | Diag(OpLoc, diag::ext_integer_complement_complex) |
13114 | << resultType << Input.get()->getSourceRange(); |
13115 | else if (resultType->hasIntegerRepresentation()) |
13116 | break; |
13117 | else if (resultType->isExtVectorType() && Context.getLangOpts().OpenCL) { |
13118 | |
13119 | |
13120 | QualType T = resultType->getAs<ExtVectorType>()->getElementType(); |
13121 | if (!T->isIntegerType()) |
13122 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13123 | << resultType << Input.get()->getSourceRange()); |
13124 | } else { |
13125 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13126 | << resultType << Input.get()->getSourceRange()); |
13127 | } |
13128 | break; |
13129 | |
13130 | case UO_LNot: |
13131 | |
13132 | Input = DefaultFunctionArrayLvalueConversion(Input.get()); |
13133 | if (Input.isInvalid()) return ExprError(); |
13134 | resultType = Input.get()->getType(); |
13135 | |
13136 | |
13137 | if (resultType->isHalfType() && !Context.getLangOpts().NativeHalfType) { |
13138 | Input = ImpCastExprToType(Input.get(), Context.FloatTy, CK_FloatingCast).get(); |
13139 | resultType = Context.FloatTy; |
13140 | } |
13141 | |
13142 | if (resultType->isDependentType()) |
13143 | break; |
13144 | if (resultType->isScalarType() && !isScopedEnumerationType(resultType)) { |
13145 | |
13146 | if (Context.getLangOpts().CPlusPlus) { |
13147 | |
13148 | |
13149 | Input = ImpCastExprToType(Input.get(), Context.BoolTy, |
13150 | ScalarTypeToBooleanCastKind(resultType)); |
13151 | } else if (Context.getLangOpts().OpenCL && |
13152 | Context.getLangOpts().OpenCLVersion < 120) { |
13153 | |
13154 | |
13155 | if (!resultType->isIntegerType() && !resultType->isPointerType()) |
13156 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13157 | << resultType << Input.get()->getSourceRange()); |
13158 | } |
13159 | } else if (resultType->isExtVectorType()) { |
13160 | if (Context.getLangOpts().OpenCL && |
13161 | Context.getLangOpts().OpenCLVersion < 120) { |
13162 | |
13163 | |
13164 | QualType T = resultType->getAs<ExtVectorType>()->getElementType(); |
13165 | if (!T->isIntegerType()) |
13166 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13167 | << resultType << Input.get()->getSourceRange()); |
13168 | } |
13169 | |
13170 | resultType = GetSignedVectorType(resultType); |
13171 | break; |
13172 | } else { |
13173 | |
13174 | |
13175 | return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr) |
13176 | << resultType << Input.get()->getSourceRange()); |
13177 | } |
13178 | |
13179 | |
13180 | |
13181 | resultType = Context.getLogicalOperationType(); |
13182 | break; |
13183 | case UO_Real: |
13184 | case UO_Imag: |
13185 | resultType = CheckRealImagOperand(*this, Input, OpLoc, Opc == UO_Real); |
13186 | |
13187 | |
13188 | if (Input.isInvalid()) return ExprError(); |
13189 | if (Opc == UO_Real || Input.get()->getType()->isAnyComplexType()) { |
13190 | if (Input.get()->getValueKind() != VK_RValue && |
13191 | Input.get()->getObjectKind() == OK_Ordinary) |
13192 | VK = Input.get()->getValueKind(); |
13193 | } else if (!getLangOpts().CPlusPlus) { |
13194 | |
13195 | Input = DefaultLvalueConversion(Input.get()); |
13196 | } |
13197 | break; |
13198 | case UO_Extension: |
13199 | resultType = Input.get()->getType(); |
13200 | VK = Input.get()->getValueKind(); |
13201 | OK = Input.get()->getObjectKind(); |
13202 | break; |
13203 | case UO_Coawait: |
13204 | |
13205 | |
13206 | (0) . __assert_fail ("!Input.get()->getType()->isDependentType() && \"the co_await expression must be non-dependant before \" \"building operator co_await\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13208, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Input.get()->getType()->isDependentType() && |
13207 | (0) . __assert_fail ("!Input.get()->getType()->isDependentType() && \"the co_await expression must be non-dependant before \" \"building operator co_await\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13208, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "the co_await expression must be non-dependant before " |
13208 | (0) . __assert_fail ("!Input.get()->getType()->isDependentType() && \"the co_await expression must be non-dependant before \" \"building operator co_await\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13208, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "building operator co_await"); |
13209 | return Input; |
13210 | } |
13211 | if (resultType.isNull() || Input.isInvalid()) |
13212 | return ExprError(); |
13213 | |
13214 | |
13215 | |
13216 | |
13217 | |
13218 | if (Opc != UO_AddrOf && Opc != UO_Deref) |
13219 | CheckArrayAccess(Input.get()); |
13220 | |
13221 | auto *UO = new (Context) |
13222 | UnaryOperator(Input.get(), Opc, resultType, VK, OK, OpLoc, CanOverflow); |
13223 | |
13224 | if (Opc == UO_Deref && UO->getType()->hasAttr(attr::NoDeref) && |
13225 | !isa<ArrayType>(UO->getType().getDesugaredType(Context))) |
13226 | ExprEvalContexts.back().PossibleDerefs.insert(UO); |
13227 | |
13228 | |
13229 | if (ConvertHalfVec) |
13230 | return convertVector(UO, Context.HalfTy, *this); |
13231 | return UO; |
13232 | } |
13233 | |
13234 | |
13235 | |
13236 | |
13237 | bool Sema::isQualifiedMemberAccess(Expr *E) { |
13238 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { |
13239 | if (!DRE->getQualifier()) |
13240 | return false; |
13241 | |
13242 | ValueDecl *VD = DRE->getDecl(); |
13243 | if (!VD->isCXXClassMember()) |
13244 | return false; |
13245 | |
13246 | if (isa<FieldDecl>(VD) || isa<IndirectFieldDecl>(VD)) |
13247 | return true; |
13248 | if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(VD)) |
13249 | return Method->isInstance(); |
13250 | |
13251 | return false; |
13252 | } |
13253 | |
13254 | if (UnresolvedLookupExpr *ULE = dyn_cast<UnresolvedLookupExpr>(E)) { |
13255 | if (!ULE->getQualifier()) |
13256 | return false; |
13257 | |
13258 | for (NamedDecl *D : ULE->decls()) { |
13259 | if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) { |
13260 | if (Method->isInstance()) |
13261 | return true; |
13262 | } else { |
13263 | |
13264 | break; |
13265 | } |
13266 | } |
13267 | |
13268 | return false; |
13269 | } |
13270 | |
13271 | return false; |
13272 | } |
13273 | |
13274 | ExprResult Sema::BuildUnaryOp(Scope *S, SourceLocation OpLoc, |
13275 | UnaryOperatorKind Opc, Expr *Input) { |
13276 | |
13277 | |
13278 | if (const BuiltinType *pty = Input->getType()->getAsPlaceholderType()) { |
13279 | |
13280 | if (pty->getKind() == BuiltinType::PseudoObject && |
13281 | UnaryOperator::isIncrementDecrementOp(Opc)) |
13282 | return checkPseudoObjectIncDec(S, OpLoc, Opc, Input); |
13283 | |
13284 | |
13285 | if (Opc == UO_Extension) |
13286 | return CreateBuiltinUnaryOp(OpLoc, Opc, Input); |
13287 | |
13288 | |
13289 | |
13290 | if (Opc == UO_AddrOf && |
13291 | (pty->getKind() == BuiltinType::Overload || |
13292 | pty->getKind() == BuiltinType::UnknownAny || |
13293 | pty->getKind() == BuiltinType::BoundMember)) |
13294 | return CreateBuiltinUnaryOp(OpLoc, Opc, Input); |
13295 | |
13296 | |
13297 | ExprResult Result = CheckPlaceholderExpr(Input); |
13298 | if (Result.isInvalid()) return ExprError(); |
13299 | Input = Result.get(); |
13300 | } |
13301 | |
13302 | if (getLangOpts().CPlusPlus && Input->getType()->isOverloadableType() && |
13303 | UnaryOperator::getOverloadedOperator(Opc) != OO_None && |
13304 | !(Opc == UO_AddrOf && isQualifiedMemberAccess(Input))) { |
13305 | |
13306 | |
13307 | |
13308 | |
13309 | UnresolvedSet<16> Functions; |
13310 | OverloadedOperatorKind OverOp = UnaryOperator::getOverloadedOperator(Opc); |
13311 | if (S && OverOp != OO_None) |
13312 | LookupOverloadedOperatorName(OverOp, S, Input->getType(), QualType(), |
13313 | Functions); |
13314 | |
13315 | return CreateOverloadedUnaryOp(OpLoc, Opc, Functions, Input); |
13316 | } |
13317 | |
13318 | return CreateBuiltinUnaryOp(OpLoc, Opc, Input); |
13319 | } |
13320 | |
13321 | |
13322 | ExprResult Sema::ActOnUnaryOp(Scope *S, SourceLocation OpLoc, |
13323 | tok::TokenKind Op, Expr *Input) { |
13324 | return BuildUnaryOp(S, OpLoc, ConvertTokenKindToUnaryOpcode(Op), Input); |
13325 | } |
13326 | |
13327 | |
13328 | ExprResult Sema::ActOnAddrLabel(SourceLocation OpLoc, SourceLocation LabLoc, |
13329 | LabelDecl *TheDecl) { |
13330 | TheDecl->markUsed(Context); |
13331 | |
13332 | return new (Context) AddrLabelExpr(OpLoc, LabLoc, TheDecl, |
13333 | Context.getPointerType(Context.VoidTy)); |
13334 | } |
13335 | |
13336 | void Sema::ActOnStartStmtExpr() { |
13337 | PushExpressionEvaluationContext(ExprEvalContexts.back().Context); |
13338 | } |
13339 | |
13340 | void Sema::ActOnStmtExprError() { |
13341 | |
13342 | |
13343 | |
13344 | DiscardCleanupsInEvaluationContext(); |
13345 | PopExpressionEvaluationContext(); |
13346 | } |
13347 | |
13348 | ExprResult |
13349 | Sema::ActOnStmtExpr(SourceLocation LPLoc, Stmt *SubStmt, |
13350 | SourceLocation RPLoc) { |
13351 | (0) . __assert_fail ("SubStmt && isa(SubStmt) && \"Invalid action invocation!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13351, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(SubStmt && isa<CompoundStmt>(SubStmt) && "Invalid action invocation!"); |
13352 | CompoundStmt *Compound = cast<CompoundStmt>(SubStmt); |
13353 | |
13354 | if (hasAnyUnrecoverableErrorsInThisFunction()) |
13355 | DiscardCleanupsInEvaluationContext(); |
13356 | (0) . __assert_fail ("!Cleanup.exprNeedsCleanups() && \"cleanups within StmtExpr not correctly bound!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13357, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Cleanup.exprNeedsCleanups() && |
13357 | (0) . __assert_fail ("!Cleanup.exprNeedsCleanups() && \"cleanups within StmtExpr not correctly bound!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13357, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "cleanups within StmtExpr not correctly bound!"); |
13358 | PopExpressionEvaluationContext(); |
13359 | |
13360 | |
13361 | |
13362 | |
13363 | |
13364 | |
13365 | |
13366 | QualType Ty = Context.VoidTy; |
13367 | bool StmtExprMayBindToTemp = false; |
13368 | if (!Compound->body_empty()) { |
13369 | if (const auto *LastStmt = dyn_cast<ValueStmt>(Compound->body_back())) { |
13370 | if (const Expr *Value = LastStmt->getExprStmt()) { |
13371 | StmtExprMayBindToTemp = true; |
13372 | Ty = Value->getType(); |
13373 | } |
13374 | } |
13375 | } |
13376 | |
13377 | |
13378 | |
13379 | Expr *ResStmtExpr = new (Context) StmtExpr(Compound, Ty, LPLoc, RPLoc); |
13380 | if (StmtExprMayBindToTemp) |
13381 | return MaybeBindToTemporary(ResStmtExpr); |
13382 | return ResStmtExpr; |
13383 | } |
13384 | |
13385 | ExprResult Sema::ActOnStmtExprResult(ExprResult ER) { |
13386 | if (ER.isInvalid()) |
13387 | return ExprError(); |
13388 | |
13389 | |
13390 | |
13391 | ER = DefaultFunctionArrayConversion(ER.get()); |
13392 | if (ER.isInvalid()) |
13393 | return ExprError(); |
13394 | Expr *E = ER.get(); |
13395 | |
13396 | if (E->isTypeDependent()) |
13397 | return E; |
13398 | |
13399 | |
13400 | |
13401 | |
13402 | |
13403 | |
13404 | |
13405 | auto *Cast = dyn_cast<ImplicitCastExpr>(E); |
13406 | if (Cast && Cast->getCastKind() == CK_ARCConsumeObject) |
13407 | return Cast->getSubExpr(); |
13408 | |
13409 | |
13410 | return PerformCopyInitialization( |
13411 | InitializedEntity::InitializeStmtExprResult( |
13412 | E->getBeginLoc(), E->getType().getUnqualifiedType()), |
13413 | SourceLocation(), E); |
13414 | } |
13415 | |
13416 | ExprResult Sema::BuildBuiltinOffsetOf(SourceLocation BuiltinLoc, |
13417 | TypeSourceInfo *TInfo, |
13418 | ArrayRef<OffsetOfComponent> Components, |
13419 | SourceLocation RParenLoc) { |
13420 | QualType ArgTy = TInfo->getType(); |
13421 | bool Dependent = ArgTy->isDependentType(); |
13422 | SourceRange TypeRange = TInfo->getTypeLoc().getLocalSourceRange(); |
13423 | |
13424 | |
13425 | |
13426 | |
13427 | if (!Dependent && !ArgTy->isRecordType()) |
13428 | return ExprError(Diag(BuiltinLoc, diag::err_offsetof_record_type) |
13429 | << ArgTy << TypeRange); |
13430 | |
13431 | |
13432 | |
13433 | if (!Dependent |
13434 | && RequireCompleteType(BuiltinLoc, ArgTy, |
13435 | diag::err_offsetof_incomplete_type, TypeRange)) |
13436 | return ExprError(); |
13437 | |
13438 | bool DidWarnAboutNonPOD = false; |
13439 | QualType CurrentType = ArgTy; |
13440 | SmallVector<OffsetOfNode, 4> Comps; |
13441 | SmallVector<Expr*, 4> Exprs; |
13442 | for (const OffsetOfComponent &OC : Components) { |
13443 | if (OC.isBrackets) { |
13444 | |
13445 | if (!CurrentType->isDependentType()) { |
13446 | const ArrayType *AT = Context.getAsArrayType(CurrentType); |
13447 | if(!AT) |
13448 | return ExprError(Diag(OC.LocEnd, diag::err_offsetof_array_type) |
13449 | << CurrentType); |
13450 | CurrentType = AT->getElementType(); |
13451 | } else |
13452 | CurrentType = Context.DependentTy; |
13453 | |
13454 | ExprResult IdxRval = DefaultLvalueConversion(static_cast<Expr*>(OC.U.E)); |
13455 | if (IdxRval.isInvalid()) |
13456 | return ExprError(); |
13457 | Expr *Idx = IdxRval.get(); |
13458 | |
13459 | |
13460 | |
13461 | if (!Idx->isTypeDependent() && !Idx->isValueDependent() && |
13462 | !Idx->getType()->isIntegerType()) |
13463 | return ExprError( |
13464 | Diag(Idx->getBeginLoc(), diag::err_typecheck_subscript_not_integer) |
13465 | << Idx->getSourceRange()); |
13466 | |
13467 | |
13468 | Comps.push_back(OffsetOfNode(OC.LocStart, Exprs.size(), OC.LocEnd)); |
13469 | Exprs.push_back(Idx); |
13470 | continue; |
13471 | } |
13472 | |
13473 | |
13474 | if (CurrentType->isDependentType()) { |
13475 | |
13476 | |
13477 | Comps.push_back(OffsetOfNode(OC.LocStart, OC.U.IdentInfo, OC.LocEnd)); |
13478 | CurrentType = Context.DependentTy; |
13479 | continue; |
13480 | } |
13481 | |
13482 | |
13483 | if (RequireCompleteType(OC.LocStart, CurrentType, |
13484 | diag::err_offsetof_incomplete_type)) |
13485 | return ExprError(); |
13486 | |
13487 | |
13488 | const RecordType *RC = CurrentType->getAs<RecordType>(); |
13489 | if (!RC) |
13490 | return ExprError(Diag(OC.LocEnd, diag::err_offsetof_record_type) |
13491 | << CurrentType); |
13492 | RecordDecl *RD = RC->getDecl(); |
13493 | |
13494 | |
13495 | |
13496 | |
13497 | |
13498 | |
13499 | |
13500 | |
13501 | if (CXXRecordDecl *CRD = dyn_cast<CXXRecordDecl>(RD)) { |
13502 | bool IsSafe = LangOpts.CPlusPlus11? CRD->isStandardLayout() : CRD->isPOD(); |
13503 | unsigned DiagID = |
13504 | LangOpts.CPlusPlus11? diag::ext_offsetof_non_standardlayout_type |
13505 | : diag::ext_offsetof_non_pod_type; |
13506 | |
13507 | if (!IsSafe && !DidWarnAboutNonPOD && |
13508 | DiagRuntimeBehavior(BuiltinLoc, nullptr, |
13509 | PDiag(DiagID) |
13510 | << SourceRange(Components[0].LocStart, OC.LocEnd) |
13511 | << CurrentType)) |
13512 | DidWarnAboutNonPOD = true; |
13513 | } |
13514 | |
13515 | |
13516 | LookupResult R(*this, OC.U.IdentInfo, OC.LocStart, LookupMemberName); |
13517 | LookupQualifiedName(R, RD); |
13518 | FieldDecl *MemberDecl = R.getAsSingle<FieldDecl>(); |
13519 | IndirectFieldDecl *IndirectMemberDecl = nullptr; |
13520 | if (!MemberDecl) { |
13521 | if ((IndirectMemberDecl = R.getAsSingle<IndirectFieldDecl>())) |
13522 | MemberDecl = IndirectMemberDecl->getAnonField(); |
13523 | } |
13524 | |
13525 | if (!MemberDecl) |
13526 | return ExprError(Diag(BuiltinLoc, diag::err_no_member) |
13527 | << OC.U.IdentInfo << RD << SourceRange(OC.LocStart, |
13528 | OC.LocEnd)); |
13529 | |
13530 | |
13531 | |
13532 | |
13533 | |
13534 | if (MemberDecl->isBitField()) { |
13535 | Diag(OC.LocEnd, diag::err_offsetof_bitfield) |
13536 | << MemberDecl->getDeclName() |
13537 | << SourceRange(BuiltinLoc, RParenLoc); |
13538 | Diag(MemberDecl->getLocation(), diag::note_bitfield_decl); |
13539 | return ExprError(); |
13540 | } |
13541 | |
13542 | RecordDecl *Parent = MemberDecl->getParent(); |
13543 | if (IndirectMemberDecl) |
13544 | Parent = cast<RecordDecl>(IndirectMemberDecl->getDeclContext()); |
13545 | |
13546 | |
13547 | |
13548 | CXXBasePaths Paths; |
13549 | if (IsDerivedFrom(OC.LocStart, CurrentType, Context.getTypeDeclType(Parent), |
13550 | Paths)) { |
13551 | if (Paths.getDetectedVirtual()) { |
13552 | Diag(OC.LocEnd, diag::err_offsetof_field_of_virtual_base) |
13553 | << MemberDecl->getDeclName() |
13554 | << SourceRange(BuiltinLoc, RParenLoc); |
13555 | return ExprError(); |
13556 | } |
13557 | |
13558 | CXXBasePath &Path = Paths.front(); |
13559 | for (const CXXBasePathElement &B : Path) |
13560 | Comps.push_back(OffsetOfNode(B.Base)); |
13561 | } |
13562 | |
13563 | if (IndirectMemberDecl) { |
13564 | for (auto *FI : IndirectMemberDecl->chain()) { |
13565 | (FI)", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13565, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isa<FieldDecl>(FI)); |
13566 | Comps.push_back(OffsetOfNode(OC.LocStart, |
13567 | cast<FieldDecl>(FI), OC.LocEnd)); |
13568 | } |
13569 | } else |
13570 | Comps.push_back(OffsetOfNode(OC.LocStart, MemberDecl, OC.LocEnd)); |
13571 | |
13572 | CurrentType = MemberDecl->getType().getNonReferenceType(); |
13573 | } |
13574 | |
13575 | return OffsetOfExpr::Create(Context, Context.getSizeType(), BuiltinLoc, TInfo, |
13576 | Comps, Exprs, RParenLoc); |
13577 | } |
13578 | |
13579 | ExprResult Sema::ActOnBuiltinOffsetOf(Scope *S, |
13580 | SourceLocation BuiltinLoc, |
13581 | SourceLocation TypeLoc, |
13582 | ParsedType ParsedArgTy, |
13583 | ArrayRef<OffsetOfComponent> Components, |
13584 | SourceLocation RParenLoc) { |
13585 | |
13586 | TypeSourceInfo *ArgTInfo; |
13587 | QualType ArgTy = GetTypeFromParser(ParsedArgTy, &ArgTInfo); |
13588 | if (ArgTy.isNull()) |
13589 | return ExprError(); |
13590 | |
13591 | if (!ArgTInfo) |
13592 | ArgTInfo = Context.getTrivialTypeSourceInfo(ArgTy, TypeLoc); |
13593 | |
13594 | return BuildBuiltinOffsetOf(BuiltinLoc, ArgTInfo, Components, RParenLoc); |
13595 | } |
13596 | |
13597 | |
13598 | ExprResult Sema::ActOnChooseExpr(SourceLocation BuiltinLoc, |
13599 | Expr *CondExpr, |
13600 | Expr *LHSExpr, Expr *RHSExpr, |
13601 | SourceLocation RPLoc) { |
13602 | (0) . __assert_fail ("(CondExpr && LHSExpr && RHSExpr) && \"Missing type argument(s)\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13602, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((CondExpr && LHSExpr && RHSExpr) && "Missing type argument(s)"); |
13603 | |
13604 | ExprValueKind VK = VK_RValue; |
13605 | ExprObjectKind OK = OK_Ordinary; |
13606 | QualType resType; |
13607 | bool ValueDependent = false; |
13608 | bool CondIsTrue = false; |
13609 | if (CondExpr->isTypeDependent() || CondExpr->isValueDependent()) { |
13610 | resType = Context.DependentTy; |
13611 | ValueDependent = true; |
13612 | } else { |
13613 | |
13614 | llvm::APSInt condEval(32); |
13615 | ExprResult CondICE |
13616 | = VerifyIntegerConstantExpression(CondExpr, &condEval, |
13617 | diag::err_typecheck_choose_expr_requires_constant, false); |
13618 | if (CondICE.isInvalid()) |
13619 | return ExprError(); |
13620 | CondExpr = CondICE.get(); |
13621 | CondIsTrue = condEval.getZExtValue(); |
13622 | |
13623 | |
13624 | Expr *ActiveExpr = CondIsTrue ? LHSExpr : RHSExpr; |
13625 | |
13626 | resType = ActiveExpr->getType(); |
13627 | ValueDependent = ActiveExpr->isValueDependent(); |
13628 | VK = ActiveExpr->getValueKind(); |
13629 | OK = ActiveExpr->getObjectKind(); |
13630 | } |
13631 | |
13632 | return new (Context) |
13633 | ChooseExpr(BuiltinLoc, CondExpr, LHSExpr, RHSExpr, resType, VK, OK, RPLoc, |
13634 | CondIsTrue, resType->isDependentType(), ValueDependent); |
13635 | } |
13636 | |
13637 | |
13638 | |
13639 | |
13640 | |
13641 | |
13642 | void Sema::ActOnBlockStart(SourceLocation CaretLoc, Scope *CurScope) { |
13643 | BlockDecl *Block = BlockDecl::Create(Context, CurContext, CaretLoc); |
13644 | |
13645 | if (LangOpts.CPlusPlus) { |
13646 | Decl *ManglingContextDecl; |
13647 | if (MangleNumberingContext *MCtx = |
13648 | getCurrentMangleNumberContext(Block->getDeclContext(), |
13649 | ManglingContextDecl)) { |
13650 | unsigned ManglingNumber = MCtx->getManglingNumber(Block); |
13651 | Block->setBlockMangling(ManglingNumber, ManglingContextDecl); |
13652 | } |
13653 | } |
13654 | |
13655 | PushBlockScope(CurScope, Block); |
13656 | CurContext->addDecl(Block); |
13657 | if (CurScope) |
13658 | PushDeclContext(CurScope, Block); |
13659 | else |
13660 | CurContext = Block; |
13661 | |
13662 | getCurBlock()->HasImplicitReturnType = true; |
13663 | |
13664 | |
13665 | |
13666 | PushExpressionEvaluationContext( |
13667 | ExpressionEvaluationContext::PotentiallyEvaluated); |
13668 | } |
13669 | |
13670 | void Sema::ActOnBlockArguments(SourceLocation CaretLoc, Declarator &ParamInfo, |
13671 | Scope *CurScope) { |
13672 | (0) . __assert_fail ("ParamInfo.getIdentifier() == nullptr && \"block-id should have no identifier!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13673, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ParamInfo.getIdentifier() == nullptr && |
13673 | (0) . __assert_fail ("ParamInfo.getIdentifier() == nullptr && \"block-id should have no identifier!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13673, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "block-id should have no identifier!"); |
13674 | assert(ParamInfo.getContext() == DeclaratorContext::BlockLiteralContext); |
13675 | BlockScopeInfo *CurBlock = getCurBlock(); |
13676 | |
13677 | TypeSourceInfo *Sig = GetTypeForDeclarator(ParamInfo, CurScope); |
13678 | QualType T = Sig->getType(); |
13679 | |
13680 | |
13681 | |
13682 | if (DiagnoseUnexpandedParameterPack(CaretLoc, Sig, UPPC_Block)) { |
13683 | |
13684 | FunctionProtoType::ExtProtoInfo EPI; |
13685 | EPI.HasTrailingReturn = false; |
13686 | EPI.TypeQuals.addConst(); |
13687 | T = Context.getFunctionType(Context.DependentTy, None, EPI); |
13688 | Sig = Context.getTrivialTypeSourceInfo(T); |
13689 | } |
13690 | |
13691 | |
13692 | |
13693 | |
13694 | (0) . __assert_fail ("T->isFunctionType() && \"GetTypeForDeclarator made a non-function block signature\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13695, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(T->isFunctionType() && |
13695 | (0) . __assert_fail ("T->isFunctionType() && \"GetTypeForDeclarator made a non-function block signature\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13695, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "GetTypeForDeclarator made a non-function block signature"); |
13696 | |
13697 | |
13698 | FunctionProtoTypeLoc ExplicitSignature; |
13699 | |
13700 | if ((ExplicitSignature = |
13701 | Sig->getTypeLoc().getAsAdjusted<FunctionProtoTypeLoc>())) { |
13702 | |
13703 | |
13704 | |
13705 | |
13706 | if (ExplicitSignature.getLocalRangeBegin() == |
13707 | ExplicitSignature.getLocalRangeEnd()) { |
13708 | |
13709 | |
13710 | TypeLoc Result = ExplicitSignature.getReturnLoc(); |
13711 | unsigned Size = Result.getFullDataSize(); |
13712 | Sig = Context.CreateTypeSourceInfo(Result.getType(), Size); |
13713 | Sig->getTypeLoc().initializeFullCopy(Result, Size); |
13714 | |
13715 | ExplicitSignature = FunctionProtoTypeLoc(); |
13716 | } |
13717 | } |
13718 | |
13719 | CurBlock->TheDecl->setSignatureAsWritten(Sig); |
13720 | CurBlock->FunctionType = T; |
13721 | |
13722 | const FunctionType *Fn = T->getAs<FunctionType>(); |
13723 | QualType RetTy = Fn->getReturnType(); |
13724 | bool isVariadic = |
13725 | (isa<FunctionProtoType>(Fn) && cast<FunctionProtoType>(Fn)->isVariadic()); |
13726 | |
13727 | CurBlock->TheDecl->setIsVariadic(isVariadic); |
13728 | |
13729 | |
13730 | |
13731 | |
13732 | |
13733 | if (RetTy != Context.DependentTy) { |
13734 | CurBlock->ReturnType = RetTy; |
13735 | CurBlock->TheDecl->setBlockMissingReturnType(false); |
13736 | CurBlock->HasImplicitReturnType = false; |
13737 | } |
13738 | |
13739 | |
13740 | SmallVector<ParmVarDecl*, 8> Params; |
13741 | if (ExplicitSignature) { |
13742 | for (unsigned I = 0, E = ExplicitSignature.getNumParams(); I != E; ++I) { |
13743 | ParmVarDecl *Param = ExplicitSignature.getParam(I); |
13744 | if (Param->getIdentifier() == nullptr && |
13745 | !Param->isImplicit() && |
13746 | !Param->isInvalidDecl() && |
13747 | !getLangOpts().CPlusPlus) |
13748 | Diag(Param->getLocation(), diag::err_parameter_name_omitted); |
13749 | Params.push_back(Param); |
13750 | } |
13751 | |
13752 | |
13753 | |
13754 | } else if (const FunctionProtoType *Fn = T->getAs<FunctionProtoType>()) { |
13755 | for (const auto &I : Fn->param_types()) { |
13756 | ParmVarDecl *Param = BuildParmVarDeclForTypedef( |
13757 | CurBlock->TheDecl, ParamInfo.getBeginLoc(), I); |
13758 | Params.push_back(Param); |
13759 | } |
13760 | } |
13761 | |
13762 | |
13763 | if (!Params.empty()) { |
13764 | CurBlock->TheDecl->setParams(Params); |
13765 | CheckParmsForFunctionDef(CurBlock->TheDecl->parameters(), |
13766 | ); |
13767 | } |
13768 | |
13769 | |
13770 | ProcessDeclAttributes(CurScope, CurBlock->TheDecl, ParamInfo); |
13771 | |
13772 | |
13773 | for (auto AI : CurBlock->TheDecl->parameters()) { |
13774 | AI->setOwningFunction(CurBlock->TheDecl); |
13775 | |
13776 | |
13777 | if (AI->getIdentifier()) { |
13778 | CheckShadow(CurBlock->TheScope, AI); |
13779 | |
13780 | PushOnScopeChains(AI, CurBlock->TheScope); |
13781 | } |
13782 | } |
13783 | } |
13784 | |
13785 | |
13786 | |
13787 | void Sema::ActOnBlockError(SourceLocation CaretLoc, Scope *CurScope) { |
13788 | |
13789 | DiscardCleanupsInEvaluationContext(); |
13790 | PopExpressionEvaluationContext(); |
13791 | |
13792 | |
13793 | PopDeclContext(); |
13794 | PopFunctionScopeInfo(); |
13795 | } |
13796 | |
13797 | |
13798 | |
13799 | ExprResult Sema::ActOnBlockStmtExpr(SourceLocation CaretLoc, |
13800 | Stmt *Body, Scope *CurScope) { |
13801 | |
13802 | if (!LangOpts.Blocks) |
13803 | Diag(CaretLoc, diag::err_blocks_disable) << LangOpts.OpenCL; |
13804 | |
13805 | |
13806 | if (hasAnyUnrecoverableErrorsInThisFunction()) |
13807 | DiscardCleanupsInEvaluationContext(); |
13808 | (0) . __assert_fail ("!Cleanup.exprNeedsCleanups() && \"cleanups within block not correctly bound!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13809, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!Cleanup.exprNeedsCleanups() && |
13809 | (0) . __assert_fail ("!Cleanup.exprNeedsCleanups() && \"cleanups within block not correctly bound!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 13809, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "cleanups within block not correctly bound!"); |
13810 | PopExpressionEvaluationContext(); |
13811 | |
13812 | BlockScopeInfo *BSI = cast<BlockScopeInfo>(FunctionScopes.back()); |
13813 | BlockDecl *BD = BSI->TheDecl; |
13814 | |
13815 | if (BSI->HasImplicitReturnType) |
13816 | deduceClosureReturnType(*BSI); |
13817 | |
13818 | PopDeclContext(); |
13819 | |
13820 | QualType RetTy = Context.VoidTy; |
13821 | if (!BSI->ReturnType.isNull()) |
13822 | RetTy = BSI->ReturnType; |
13823 | |
13824 | bool NoReturn = BD->hasAttr<NoReturnAttr>(); |
13825 | QualType BlockTy; |
13826 | |
13827 | |
13828 | |
13829 | SmallVector<BlockDecl::Capture, 4> Captures; |
13830 | for (Capture &Cap : BSI->Captures) { |
13831 | if (Cap.isThisCapture()) |
13832 | continue; |
13833 | BlockDecl::Capture NewCap(Cap.getVariable(), Cap.isBlockCapture(), |
13834 | Cap.isNested(), Cap.getInitExpr()); |
13835 | Captures.push_back(NewCap); |
13836 | } |
13837 | BD->setCaptures(Context, Captures, BSI->CXXThisCaptureIndex != 0); |
13838 | |
13839 | |
13840 | if (!BSI->FunctionType.isNull()) { |
13841 | const FunctionType *FTy = BSI->FunctionType->getAs<FunctionType>(); |
13842 | |
13843 | FunctionType::ExtInfo Ext = FTy->getExtInfo(); |
13844 | if (NoReturn && !Ext.getNoReturn()) Ext = Ext.withNoReturn(true); |
13845 | |
13846 | |
13847 | if (isa<FunctionNoProtoType>(FTy)) { |
13848 | FunctionProtoType::ExtProtoInfo EPI; |
13849 | EPI.ExtInfo = Ext; |
13850 | BlockTy = Context.getFunctionType(RetTy, None, EPI); |
13851 | |
13852 | |
13853 | |
13854 | } else if (FTy->getReturnType() == RetTy && |
13855 | (!NoReturn || FTy->getNoReturnAttr())) { |
13856 | BlockTy = BSI->FunctionType; |
13857 | |
13858 | |
13859 | } else { |
13860 | const FunctionProtoType *FPT = cast<FunctionProtoType>(FTy); |
13861 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); |
13862 | EPI.TypeQuals = Qualifiers(); |
13863 | EPI.ExtInfo = Ext; |
13864 | BlockTy = Context.getFunctionType(RetTy, FPT->getParamTypes(), EPI); |
13865 | } |
13866 | |
13867 | |
13868 | } else { |
13869 | FunctionProtoType::ExtProtoInfo EPI; |
13870 | EPI.ExtInfo = FunctionType::ExtInfo().withNoReturn(NoReturn); |
13871 | BlockTy = Context.getFunctionType(RetTy, None, EPI); |
13872 | } |
13873 | |
13874 | DiagnoseUnusedParameters(BD->parameters()); |
13875 | BlockTy = Context.getBlockPointerType(BlockTy); |
13876 | |
13877 | |
13878 | if (getCurFunction()->NeedsScopeChecking() && |
13879 | !PP.isCodeCompletionEnabled()) |
13880 | DiagnoseInvalidJumps(cast<CompoundStmt>(Body)); |
13881 | |
13882 | BD->setBody(cast<CompoundStmt>(Body)); |
13883 | |
13884 | if (Body && getCurFunction()->HasPotentialAvailabilityViolations) |
13885 | DiagnoseUnguardedAvailabilityViolations(BD); |
13886 | |
13887 | |
13888 | |
13889 | |
13890 | if (getLangOpts().CPlusPlus && RetTy->isRecordType() && |
13891 | !BD->isDependentContext()) |
13892 | computeNRVO(Body, BSI); |
13893 | |
13894 | BlockExpr *Result = new (Context) BlockExpr(BD, BlockTy); |
13895 | AnalysisBasedWarnings::Policy WP = AnalysisWarnings.getDefaultPolicy(); |
13896 | PopFunctionScopeInfo(&WP, Result->getBlockDecl(), Result); |
13897 | |
13898 | |
13899 | |
13900 | if (Result->getBlockDecl()->hasCaptures()) { |
13901 | |
13902 | ExprCleanupObjects.push_back(Result->getBlockDecl()); |
13903 | Cleanup.setExprNeedsCleanups(true); |
13904 | |
13905 | |
13906 | |
13907 | for (const auto &CI : Result->getBlockDecl()->captures()) { |
13908 | const VarDecl *var = CI.getVariable(); |
13909 | if (var->getType().isDestructedType() != QualType::DK_none) { |
13910 | setFunctionHasBranchProtectedScope(); |
13911 | break; |
13912 | } |
13913 | } |
13914 | } |
13915 | |
13916 | if (getCurFunction()) |
13917 | getCurFunction()->addBlock(BD); |
13918 | |
13919 | return Result; |
13920 | } |
13921 | |
13922 | ExprResult Sema::ActOnVAArg(SourceLocation BuiltinLoc, Expr *E, ParsedType Ty, |
13923 | SourceLocation RPLoc) { |
13924 | TypeSourceInfo *TInfo; |
13925 | GetTypeFromParser(Ty, &TInfo); |
13926 | return BuildVAArgExpr(BuiltinLoc, E, TInfo, RPLoc); |
13927 | } |
13928 | |
13929 | ExprResult Sema::BuildVAArgExpr(SourceLocation BuiltinLoc, |
13930 | Expr *E, TypeSourceInfo *TInfo, |
13931 | SourceLocation RPLoc) { |
13932 | Expr *OrigExpr = E; |
13933 | bool IsMS = false; |
13934 | |
13935 | |
13936 | if (getLangOpts().CUDA && getLangOpts().CUDAIsDevice) { |
13937 | if (const FunctionDecl *F = dyn_cast<FunctionDecl>(CurContext)) { |
13938 | CUDAFunctionTarget T = IdentifyCUDATarget(F); |
13939 | if (T == CFT_Global || T == CFT_Device || T == CFT_HostDevice) |
13940 | return ExprError(Diag(E->getBeginLoc(), diag::err_va_arg_in_device)); |
13941 | } |
13942 | } |
13943 | |
13944 | |
13945 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && |
13946 | Context.getTargetInfo().getTriple().isNVPTX()) |
13947 | targetDiag(E->getBeginLoc(), diag::err_va_arg_in_device); |
13948 | |
13949 | |
13950 | |
13951 | |
13952 | if (!E->isTypeDependent() && Context.getTargetInfo().hasBuiltinMSVaList() && |
13953 | Context.getTargetInfo().getBuiltinVaListKind() != TargetInfo::CharPtrBuiltinVaList) { |
13954 | QualType MSVaListType = Context.getBuiltinMSVaListType(); |
13955 | if (Context.hasSameType(MSVaListType, E->getType())) { |
13956 | if (CheckForModifiableLvalue(E, BuiltinLoc, *this)) |
13957 | return ExprError(); |
13958 | IsMS = true; |
13959 | } |
13960 | } |
13961 | |
13962 | |
13963 | QualType VaListType = Context.getBuiltinVaListType(); |
13964 | if (!IsMS) { |
13965 | if (VaListType->isArrayType()) { |
13966 | |
13967 | |
13968 | |
13969 | VaListType = Context.getArrayDecayedType(VaListType); |
13970 | |
13971 | ExprResult Result = UsualUnaryConversions(E); |
13972 | if (Result.isInvalid()) |
13973 | return ExprError(); |
13974 | E = Result.get(); |
13975 | } else if (VaListType->isRecordType() && getLangOpts().CPlusPlus) { |
13976 | |
13977 | |
13978 | InitializedEntity Entity = InitializedEntity::InitializeParameter( |
13979 | Context, Context.getLValueReferenceType(VaListType), false); |
13980 | ExprResult Init = PerformCopyInitialization(Entity, SourceLocation(), E); |
13981 | if (Init.isInvalid()) |
13982 | return ExprError(); |
13983 | E = Init.getAs<Expr>(); |
13984 | } else { |
13985 | |
13986 | |
13987 | if (!E->isTypeDependent() && |
13988 | CheckForModifiableLvalue(E, BuiltinLoc, *this)) |
13989 | return ExprError(); |
13990 | } |
13991 | } |
13992 | |
13993 | if (!IsMS && !E->isTypeDependent() && |
13994 | !Context.hasSameType(VaListType, E->getType())) |
13995 | return ExprError( |
13996 | Diag(E->getBeginLoc(), |
13997 | diag::err_first_argument_to_va_arg_not_of_type_va_list) |
13998 | << OrigExpr->getType() << E->getSourceRange()); |
13999 | |
14000 | if (!TInfo->getType()->isDependentType()) { |
14001 | if (RequireCompleteType(TInfo->getTypeLoc().getBeginLoc(), TInfo->getType(), |
14002 | diag::err_second_parameter_to_va_arg_incomplete, |
14003 | TInfo->getTypeLoc())) |
14004 | return ExprError(); |
14005 | |
14006 | if (RequireNonAbstractType(TInfo->getTypeLoc().getBeginLoc(), |
14007 | TInfo->getType(), |
14008 | diag::err_second_parameter_to_va_arg_abstract, |
14009 | TInfo->getTypeLoc())) |
14010 | return ExprError(); |
14011 | |
14012 | if (!TInfo->getType().isPODType(Context)) { |
14013 | Diag(TInfo->getTypeLoc().getBeginLoc(), |
14014 | TInfo->getType()->isObjCLifetimeType() |
14015 | ? diag::warn_second_parameter_to_va_arg_ownership_qualified |
14016 | : diag::warn_second_parameter_to_va_arg_not_pod) |
14017 | << TInfo->getType() |
14018 | << TInfo->getTypeLoc().getSourceRange(); |
14019 | } |
14020 | |
14021 | |
14022 | |
14023 | QualType PromoteType; |
14024 | if (TInfo->getType()->isPromotableIntegerType()) { |
14025 | PromoteType = Context.getPromotedIntegerType(TInfo->getType()); |
14026 | if (Context.typesAreCompatible(PromoteType, TInfo->getType())) |
14027 | PromoteType = QualType(); |
14028 | } |
14029 | if (TInfo->getType()->isSpecificBuiltinType(BuiltinType::Float)) |
14030 | PromoteType = Context.DoubleTy; |
14031 | if (!PromoteType.isNull()) |
14032 | DiagRuntimeBehavior(TInfo->getTypeLoc().getBeginLoc(), E, |
14033 | PDiag(diag::warn_second_parameter_to_va_arg_never_compatible) |
14034 | << TInfo->getType() |
14035 | << PromoteType |
14036 | << TInfo->getTypeLoc().getSourceRange()); |
14037 | } |
14038 | |
14039 | QualType T = TInfo->getType().getNonLValueExprType(Context); |
14040 | return new (Context) VAArgExpr(BuiltinLoc, E, TInfo, RPLoc, T, IsMS); |
14041 | } |
14042 | |
14043 | ExprResult Sema::ActOnGNUNullExpr(SourceLocation TokenLoc) { |
14044 | |
14045 | |
14046 | QualType Ty; |
14047 | unsigned pw = Context.getTargetInfo().getPointerWidth(0); |
14048 | if (pw == Context.getTargetInfo().getIntWidth()) |
14049 | Ty = Context.IntTy; |
14050 | else if (pw == Context.getTargetInfo().getLongWidth()) |
14051 | Ty = Context.LongTy; |
14052 | else if (pw == Context.getTargetInfo().getLongLongWidth()) |
14053 | Ty = Context.LongLongTy; |
14054 | else { |
14055 | llvm_unreachable("I don't know size of pointer!"); |
14056 | } |
14057 | |
14058 | return new (Context) GNUNullExpr(Ty, TokenLoc); |
14059 | } |
14060 | |
14061 | bool Sema::ConversionToObjCStringLiteralCheck(QualType DstType, Expr *&Exp, |
14062 | bool Diagnose) { |
14063 | if (!getLangOpts().ObjC) |
14064 | return false; |
14065 | |
14066 | const ObjCObjectPointerType *PT = DstType->getAs<ObjCObjectPointerType>(); |
14067 | if (!PT) |
14068 | return false; |
14069 | |
14070 | if (!PT->isObjCIdType()) { |
14071 | |
14072 | const ObjCInterfaceDecl *ID = PT->getInterfaceDecl(); |
14073 | if (!ID || !ID->getIdentifier()->isStr("NSString")) |
14074 | return false; |
14075 | } |
14076 | |
14077 | |
14078 | |
14079 | |
14080 | Expr *SrcExpr = Exp->IgnoreParenImpCasts(); |
14081 | if (OpaqueValueExpr *OV = dyn_cast<OpaqueValueExpr>(SrcExpr)) |
14082 | if (OV->getSourceExpr()) |
14083 | SrcExpr = OV->getSourceExpr()->IgnoreParenImpCasts(); |
14084 | |
14085 | StringLiteral *SL = dyn_cast<StringLiteral>(SrcExpr); |
14086 | if (!SL || !SL->isAscii()) |
14087 | return false; |
14088 | if (Diagnose) { |
14089 | Diag(SL->getBeginLoc(), diag::err_missing_atsign_prefix) |
14090 | << FixItHint::CreateInsertion(SL->getBeginLoc(), "@"); |
14091 | Exp = BuildObjCStringLiteral(SL->getBeginLoc(), SL).get(); |
14092 | } |
14093 | return true; |
14094 | } |
14095 | |
14096 | static bool maybeDiagnoseAssignmentToFunction(Sema &S, QualType DstType, |
14097 | const Expr *SrcExpr) { |
14098 | if (!DstType->isFunctionPointerType() || |
14099 | !SrcExpr->getType()->isFunctionType()) |
14100 | return false; |
14101 | |
14102 | auto *DRE = dyn_cast<DeclRefExpr>(SrcExpr->IgnoreParenImpCasts()); |
14103 | if (!DRE) |
14104 | return false; |
14105 | |
14106 | auto *FD = dyn_cast<FunctionDecl>(DRE->getDecl()); |
14107 | if (!FD) |
14108 | return false; |
14109 | |
14110 | return !S.checkAddressOfFunctionIsAvailable(FD, |
14111 | , |
14112 | SrcExpr->getBeginLoc()); |
14113 | } |
14114 | |
14115 | bool Sema::DiagnoseAssignmentResult(AssignConvertType ConvTy, |
14116 | SourceLocation Loc, |
14117 | QualType DstType, QualType SrcType, |
14118 | Expr *SrcExpr, AssignmentAction Action, |
14119 | bool *Complained) { |
14120 | if (Complained) |
14121 | *Complained = false; |
14122 | |
14123 | |
14124 | bool CheckInferredResultType = false; |
14125 | bool isInvalid = false; |
14126 | unsigned DiagKind = 0; |
14127 | FixItHint Hint; |
14128 | ConversionFixItGenerator ConvHints; |
14129 | bool MayHaveConvFixit = false; |
14130 | bool MayHaveFunctionDiff = false; |
14131 | const ObjCInterfaceDecl *IFace = nullptr; |
14132 | const ObjCProtocolDecl *PDecl = nullptr; |
14133 | |
14134 | switch (ConvTy) { |
14135 | case Compatible: |
14136 | DiagnoseAssignmentEnum(DstType, SrcType, SrcExpr); |
14137 | return false; |
14138 | |
14139 | case PointerToInt: |
14140 | DiagKind = diag::ext_typecheck_convert_pointer_int; |
14141 | ConvHints.tryToFixConversion(SrcExpr, SrcType, DstType, *this); |
14142 | MayHaveConvFixit = true; |
14143 | break; |
14144 | case IntToPointer: |
14145 | DiagKind = diag::ext_typecheck_convert_int_pointer; |
14146 | ConvHints.tryToFixConversion(SrcExpr, SrcType, DstType, *this); |
14147 | MayHaveConvFixit = true; |
14148 | break; |
14149 | case IncompatiblePointer: |
14150 | if (Action == AA_Passing_CFAudited) |
14151 | DiagKind = diag::err_arc_typecheck_convert_incompatible_pointer; |
14152 | else if (SrcType->isFunctionPointerType() && |
14153 | DstType->isFunctionPointerType()) |
14154 | DiagKind = diag::ext_typecheck_convert_incompatible_function_pointer; |
14155 | else |
14156 | DiagKind = diag::ext_typecheck_convert_incompatible_pointer; |
14157 | |
14158 | CheckInferredResultType = DstType->isObjCObjectPointerType() && |
14159 | SrcType->isObjCObjectPointerType(); |
14160 | if (Hint.isNull() && !CheckInferredResultType) { |
14161 | ConvHints.tryToFixConversion(SrcExpr, SrcType, DstType, *this); |
14162 | } |
14163 | else if (CheckInferredResultType) { |
14164 | SrcType = SrcType.getUnqualifiedType(); |
14165 | DstType = DstType.getUnqualifiedType(); |
14166 | } |
14167 | MayHaveConvFixit = true; |
14168 | break; |
14169 | case IncompatiblePointerSign: |
14170 | DiagKind = diag::ext_typecheck_convert_incompatible_pointer_sign; |
14171 | break; |
14172 | case FunctionVoidPointer: |
14173 | DiagKind = diag::ext_typecheck_convert_pointer_void_func; |
14174 | break; |
14175 | case IncompatiblePointerDiscardsQualifiers: { |
14176 | |
14177 | if (SrcType->isArrayType()) SrcType = Context.getArrayDecayedType(SrcType); |
14178 | |
14179 | Qualifiers lhq = SrcType->getPointeeType().getQualifiers(); |
14180 | Qualifiers rhq = DstType->getPointeeType().getQualifiers(); |
14181 | if (lhq.getAddressSpace() != rhq.getAddressSpace()) { |
14182 | DiagKind = diag::err_typecheck_incompatible_address_space; |
14183 | break; |
14184 | |
14185 | } else if (lhq.getObjCLifetime() != rhq.getObjCLifetime()) { |
14186 | DiagKind = diag::err_typecheck_incompatible_ownership; |
14187 | break; |
14188 | } |
14189 | |
14190 | llvm_unreachable("unknown error case for discarding qualifiers!"); |
14191 | |
14192 | } |
14193 | case CompatiblePointerDiscardsQualifiers: |
14194 | |
14195 | |
14196 | |
14197 | |
14198 | |
14199 | |
14200 | |
14201 | |
14202 | |
14203 | if (getLangOpts().CPlusPlus && |
14204 | IsStringLiteralToNonConstPointerConversion(SrcExpr, DstType)) |
14205 | return false; |
14206 | DiagKind = diag::ext_typecheck_convert_discards_qualifiers; |
14207 | break; |
14208 | case IncompatibleNestedPointerQualifiers: |
14209 | DiagKind = diag::ext_nested_pointer_qualifier_mismatch; |
14210 | break; |
14211 | case IntToBlockPointer: |
14212 | DiagKind = diag::err_int_to_block_pointer; |
14213 | break; |
14214 | case IncompatibleBlockPointer: |
14215 | DiagKind = diag::err_typecheck_convert_incompatible_block_pointer; |
14216 | break; |
14217 | case IncompatibleObjCQualifiedId: { |
14218 | if (SrcType->isObjCQualifiedIdType()) { |
14219 | const ObjCObjectPointerType *srcOPT = |
14220 | SrcType->getAs<ObjCObjectPointerType>(); |
14221 | for (auto *srcProto : srcOPT->quals()) { |
14222 | PDecl = srcProto; |
14223 | break; |
14224 | } |
14225 | if (const ObjCInterfaceType *IFaceT = |
14226 | DstType->getAs<ObjCObjectPointerType>()->getInterfaceType()) |
14227 | IFace = IFaceT->getDecl(); |
14228 | } |
14229 | else if (DstType->isObjCQualifiedIdType()) { |
14230 | const ObjCObjectPointerType *dstOPT = |
14231 | DstType->getAs<ObjCObjectPointerType>(); |
14232 | for (auto *dstProto : dstOPT->quals()) { |
14233 | PDecl = dstProto; |
14234 | break; |
14235 | } |
14236 | if (const ObjCInterfaceType *IFaceT = |
14237 | SrcType->getAs<ObjCObjectPointerType>()->getInterfaceType()) |
14238 | IFace = IFaceT->getDecl(); |
14239 | } |
14240 | DiagKind = diag::warn_incompatible_qualified_id; |
14241 | break; |
14242 | } |
14243 | case IncompatibleVectors: |
14244 | DiagKind = diag::warn_incompatible_vectors; |
14245 | break; |
14246 | case IncompatibleObjCWeakRef: |
14247 | DiagKind = diag::err_arc_weak_unavailable_assign; |
14248 | break; |
14249 | case Incompatible: |
14250 | if (maybeDiagnoseAssignmentToFunction(*this, DstType, SrcExpr)) { |
14251 | if (Complained) |
14252 | *Complained = true; |
14253 | return true; |
14254 | } |
14255 | |
14256 | DiagKind = diag::err_typecheck_convert_incompatible; |
14257 | ConvHints.tryToFixConversion(SrcExpr, SrcType, DstType, *this); |
14258 | MayHaveConvFixit = true; |
14259 | isInvalid = true; |
14260 | MayHaveFunctionDiff = true; |
14261 | break; |
14262 | } |
14263 | |
14264 | QualType FirstType, SecondType; |
14265 | switch (Action) { |
14266 | case AA_Assigning: |
14267 | case AA_Initializing: |
14268 | |
14269 | FirstType = DstType; |
14270 | SecondType = SrcType; |
14271 | break; |
14272 | |
14273 | case AA_Returning: |
14274 | case AA_Passing: |
14275 | case AA_Passing_CFAudited: |
14276 | case AA_Converting: |
14277 | case AA_Sending: |
14278 | case AA_Casting: |
14279 | |
14280 | FirstType = SrcType; |
14281 | SecondType = DstType; |
14282 | break; |
14283 | } |
14284 | |
14285 | PartialDiagnostic FDiag = PDiag(DiagKind); |
14286 | if (Action == AA_Passing_CFAudited) |
14287 | FDiag << FirstType << SecondType << AA_Passing << SrcExpr->getSourceRange(); |
14288 | else |
14289 | FDiag << FirstType << SecondType << Action << SrcExpr->getSourceRange(); |
14290 | |
14291 | |
14292 | assert(ConvHints.isNull() || Hint.isNull()); |
14293 | if (!ConvHints.isNull()) { |
14294 | for (FixItHint &H : ConvHints.Hints) |
14295 | FDiag << H; |
14296 | } else { |
14297 | FDiag << Hint; |
14298 | } |
14299 | if (MayHaveConvFixit) { FDiag << (unsigned) (ConvHints.Kind); } |
14300 | |
14301 | if (MayHaveFunctionDiff) |
14302 | HandleFunctionTypeMismatch(FDiag, SecondType, FirstType); |
14303 | |
14304 | Diag(Loc, FDiag); |
14305 | if (DiagKind == diag::warn_incompatible_qualified_id && |
14306 | PDecl && IFace && !IFace->hasDefinition()) |
14307 | Diag(IFace->getLocation(), diag::note_incomplete_class_and_qualified_id) |
14308 | << IFace << PDecl; |
14309 | |
14310 | if (SecondType == Context.OverloadTy) |
14311 | NoteAllOverloadCandidates(OverloadExpr::find(SrcExpr).Expression, |
14312 | FirstType, ); |
14313 | |
14314 | if (CheckInferredResultType) |
14315 | EmitRelatedResultTypeNote(SrcExpr); |
14316 | |
14317 | if (Action == AA_Returning && ConvTy == IncompatiblePointer) |
14318 | EmitRelatedResultTypeNoteForReturn(DstType); |
14319 | |
14320 | if (Complained) |
14321 | *Complained = true; |
14322 | return isInvalid; |
14323 | } |
14324 | |
14325 | ExprResult Sema::VerifyIntegerConstantExpression(Expr *E, |
14326 | llvm::APSInt *Result) { |
14327 | class SimpleICEDiagnoser : public VerifyICEDiagnoser { |
14328 | public: |
14329 | void diagnoseNotICE(Sema &S, SourceLocation Loc, SourceRange SR) override { |
14330 | S.Diag(Loc, diag::err_expr_not_ice) << S.LangOpts.CPlusPlus << SR; |
14331 | } |
14332 | } Diagnoser; |
14333 | |
14334 | return VerifyIntegerConstantExpression(E, Result, Diagnoser); |
14335 | } |
14336 | |
14337 | ExprResult Sema::VerifyIntegerConstantExpression(Expr *E, |
14338 | llvm::APSInt *Result, |
14339 | unsigned DiagID, |
14340 | bool AllowFold) { |
14341 | class IDDiagnoser : public VerifyICEDiagnoser { |
14342 | unsigned DiagID; |
14343 | |
14344 | public: |
14345 | IDDiagnoser(unsigned DiagID) |
14346 | : VerifyICEDiagnoser(DiagID == 0), DiagID(DiagID) { } |
14347 | |
14348 | void diagnoseNotICE(Sema &S, SourceLocation Loc, SourceRange SR) override { |
14349 | S.Diag(Loc, DiagID) << SR; |
14350 | } |
14351 | } Diagnoser(DiagID); |
14352 | |
14353 | return VerifyIntegerConstantExpression(E, Result, Diagnoser, AllowFold); |
14354 | } |
14355 | |
14356 | void Sema::VerifyICEDiagnoser::diagnoseFold(Sema &S, SourceLocation Loc, |
14357 | SourceRange SR) { |
14358 | S.Diag(Loc, diag::ext_expr_not_ice) << SR << S.LangOpts.CPlusPlus; |
14359 | } |
14360 | |
14361 | ExprResult |
14362 | Sema::VerifyIntegerConstantExpression(Expr *E, llvm::APSInt *Result, |
14363 | VerifyICEDiagnoser &Diagnoser, |
14364 | bool AllowFold) { |
14365 | SourceLocation DiagLoc = E->getBeginLoc(); |
14366 | |
14367 | if (getLangOpts().CPlusPlus11) { |
14368 | |
14369 | |
14370 | |
14371 | |
14372 | |
14373 | ExprResult Converted; |
14374 | class CXX11ConvertDiagnoser : public ICEConvertDiagnoser { |
14375 | public: |
14376 | CXX11ConvertDiagnoser(bool Silent) |
14377 | : ICEConvertDiagnoser(, |
14378 | Silent, true) {} |
14379 | |
14380 | SemaDiagnosticBuilder diagnoseNotInt(Sema &S, SourceLocation Loc, |
14381 | QualType T) override { |
14382 | return S.Diag(Loc, diag::err_ice_not_integral) << T; |
14383 | } |
14384 | |
14385 | SemaDiagnosticBuilder diagnoseIncomplete( |
14386 | Sema &S, SourceLocation Loc, QualType T) override { |
14387 | return S.Diag(Loc, diag::err_ice_incomplete_type) << T; |
14388 | } |
14389 | |
14390 | SemaDiagnosticBuilder diagnoseExplicitConv( |
14391 | Sema &S, SourceLocation Loc, QualType T, QualType ConvTy) override { |
14392 | return S.Diag(Loc, diag::err_ice_explicit_conversion) << T << ConvTy; |
14393 | } |
14394 | |
14395 | SemaDiagnosticBuilder noteExplicitConv( |
14396 | Sema &S, CXXConversionDecl *Conv, QualType ConvTy) override { |
14397 | return S.Diag(Conv->getLocation(), diag::note_ice_conversion_here) |
14398 | << ConvTy->isEnumeralType() << ConvTy; |
14399 | } |
14400 | |
14401 | SemaDiagnosticBuilder diagnoseAmbiguous( |
14402 | Sema &S, SourceLocation Loc, QualType T) override { |
14403 | return S.Diag(Loc, diag::err_ice_ambiguous_conversion) << T; |
14404 | } |
14405 | |
14406 | SemaDiagnosticBuilder noteAmbiguous( |
14407 | Sema &S, CXXConversionDecl *Conv, QualType ConvTy) override { |
14408 | return S.Diag(Conv->getLocation(), diag::note_ice_conversion_here) |
14409 | << ConvTy->isEnumeralType() << ConvTy; |
14410 | } |
14411 | |
14412 | SemaDiagnosticBuilder diagnoseConversion( |
14413 | Sema &S, SourceLocation Loc, QualType T, QualType ConvTy) override { |
14414 | llvm_unreachable("conversion functions are permitted"); |
14415 | } |
14416 | } ConvertDiagnoser(Diagnoser.Suppress); |
14417 | |
14418 | Converted = PerformContextualImplicitConversion(DiagLoc, E, |
14419 | ConvertDiagnoser); |
14420 | if (Converted.isInvalid()) |
14421 | return Converted; |
14422 | E = Converted.get(); |
14423 | if (!E->getType()->isIntegralOrUnscopedEnumerationType()) |
14424 | return ExprError(); |
14425 | } else if (!E->getType()->isIntegralOrUnscopedEnumerationType()) { |
14426 | |
14427 | if (!Diagnoser.Suppress) |
14428 | Diagnoser.diagnoseNotICE(*this, DiagLoc, E->getSourceRange()); |
14429 | return ExprError(); |
14430 | } |
14431 | |
14432 | if (!isa<ConstantExpr>(E)) |
14433 | E = ConstantExpr::Create(Context, E); |
14434 | |
14435 | |
14436 | |
14437 | if (!getLangOpts().CPlusPlus11 && E->isIntegerConstantExpr(Context)) { |
14438 | if (Result) |
14439 | *Result = E->EvaluateKnownConstIntCheckOverflow(Context); |
14440 | return E; |
14441 | } |
14442 | |
14443 | Expr::EvalResult EvalResult; |
14444 | SmallVector<PartialDiagnosticAt, 8> Notes; |
14445 | EvalResult.Diag = &Notes; |
14446 | |
14447 | |
14448 | |
14449 | bool Folded = E->EvaluateAsRValue(EvalResult, Context) && |
14450 | EvalResult.Val.isInt() && !EvalResult.HasSideEffects; |
14451 | |
14452 | |
14453 | |
14454 | |
14455 | if (Folded && getLangOpts().CPlusPlus11 && Notes.empty()) { |
14456 | if (Result) |
14457 | *Result = EvalResult.Val.getInt(); |
14458 | return E; |
14459 | } |
14460 | |
14461 | |
14462 | |
14463 | |
14464 | if (Notes.size() == 1 && Notes[0].second.getDiagID() == |
14465 | diag::note_invalid_subexpr_in_const_expr) { |
14466 | DiagLoc = Notes[0].first; |
14467 | Notes.clear(); |
14468 | } |
14469 | |
14470 | if (!Folded || !AllowFold) { |
14471 | if (!Diagnoser.Suppress) { |
14472 | Diagnoser.diagnoseNotICE(*this, DiagLoc, E->getSourceRange()); |
14473 | for (const PartialDiagnosticAt &Note : Notes) |
14474 | Diag(Note.first, Note.second); |
14475 | } |
14476 | |
14477 | return ExprError(); |
14478 | } |
14479 | |
14480 | Diagnoser.diagnoseFold(*this, DiagLoc, E->getSourceRange()); |
14481 | for (const PartialDiagnosticAt &Note : Notes) |
14482 | Diag(Note.first, Note.second); |
14483 | |
14484 | if (Result) |
14485 | *Result = EvalResult.Val.getInt(); |
14486 | return E; |
14487 | } |
14488 | |
14489 | namespace { |
14490 | |
14491 | |
14492 | class TransformToPE : public TreeTransform<TransformToPE> { |
14493 | typedef TreeTransform<TransformToPE> BaseTransform; |
14494 | |
14495 | public: |
14496 | TransformToPE(Sema &SemaRef) : BaseTransform(SemaRef) { } |
14497 | |
14498 | |
14499 | bool AlwaysRebuild() { return true; } |
14500 | |
14501 | |
14502 | |
14503 | |
14504 | |
14505 | |
14506 | |
14507 | |
14508 | ExprResult TransformDeclRefExpr(DeclRefExpr *E) { |
14509 | if (isa<FieldDecl>(E->getDecl()) && |
14510 | !SemaRef.isUnevaluatedContext()) |
14511 | return SemaRef.Diag(E->getLocation(), |
14512 | diag::err_invalid_non_static_member_use) |
14513 | << E->getDecl() << E->getSourceRange(); |
14514 | |
14515 | return BaseTransform::TransformDeclRefExpr(E); |
14516 | } |
14517 | |
14518 | |
14519 | ExprResult TransformUnaryOperator(UnaryOperator *E) { |
14520 | if (E->getOpcode() == UO_AddrOf && E->getType()->isMemberPointerType()) |
14521 | return E; |
14522 | |
14523 | return BaseTransform::TransformUnaryOperator(E); |
14524 | } |
14525 | |
14526 | ExprResult TransformLambdaExpr(LambdaExpr *E) { |
14527 | |
14528 | return E; |
14529 | } |
14530 | }; |
14531 | } |
14532 | |
14533 | ExprResult Sema::TransformToPotentiallyEvaluated(Expr *E) { |
14534 | (0) . __assert_fail ("isUnevaluatedContext() && \"Should only transform unevaluated expressions\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 14535, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isUnevaluatedContext() && |
14535 | (0) . __assert_fail ("isUnevaluatedContext() && \"Should only transform unevaluated expressions\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 14535, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Should only transform unevaluated expressions"); |
14536 | ExprEvalContexts.back().Context = |
14537 | ExprEvalContexts[ExprEvalContexts.size()-2].Context; |
14538 | if (isUnevaluatedContext()) |
14539 | return E; |
14540 | return TransformToPE(*this).TransformExpr(E); |
14541 | } |
14542 | |
14543 | void |
14544 | Sema::PushExpressionEvaluationContext( |
14545 | ExpressionEvaluationContext NewContext, Decl *LambdaContextDecl, |
14546 | ExpressionEvaluationContextRecord::ExpressionKind ExprContext) { |
14547 | ExprEvalContexts.emplace_back(NewContext, ExprCleanupObjects.size(), Cleanup, |
14548 | LambdaContextDecl, ExprContext); |
14549 | Cleanup.reset(); |
14550 | if (!MaybeODRUseExprs.empty()) |
14551 | std::swap(MaybeODRUseExprs, ExprEvalContexts.back().SavedMaybeODRUseExprs); |
14552 | } |
14553 | |
14554 | void |
14555 | Sema::PushExpressionEvaluationContext( |
14556 | ExpressionEvaluationContext NewContext, ReuseLambdaContextDecl_t, |
14557 | ExpressionEvaluationContextRecord::ExpressionKind ExprContext) { |
14558 | Decl *ClosureContextDecl = ExprEvalContexts.back().ManglingContextDecl; |
14559 | PushExpressionEvaluationContext(NewContext, ClosureContextDecl, ExprContext); |
14560 | } |
14561 | |
14562 | namespace { |
14563 | |
14564 | const DeclRefExpr *CheckPossibleDeref(Sema &S, const Expr *PossibleDeref) { |
14565 | PossibleDeref = PossibleDeref->IgnoreParenImpCasts(); |
14566 | if (const auto *E = dyn_cast<UnaryOperator>(PossibleDeref)) { |
14567 | if (E->getOpcode() == UO_Deref) |
14568 | return CheckPossibleDeref(S, E->getSubExpr()); |
14569 | } else if (const auto *E = dyn_cast<ArraySubscriptExpr>(PossibleDeref)) { |
14570 | return CheckPossibleDeref(S, E->getBase()); |
14571 | } else if (const auto *E = dyn_cast<MemberExpr>(PossibleDeref)) { |
14572 | return CheckPossibleDeref(S, E->getBase()); |
14573 | } else if (const auto E = dyn_cast<DeclRefExpr>(PossibleDeref)) { |
14574 | QualType Inner; |
14575 | QualType Ty = E->getType(); |
14576 | if (const auto *Ptr = Ty->getAs<PointerType>()) |
14577 | Inner = Ptr->getPointeeType(); |
14578 | else if (const auto *Arr = S.Context.getAsArrayType(Ty)) |
14579 | Inner = Arr->getElementType(); |
14580 | else |
14581 | return nullptr; |
14582 | |
14583 | if (Inner->hasAttr(attr::NoDeref)) |
14584 | return E; |
14585 | } |
14586 | return nullptr; |
14587 | } |
14588 | |
14589 | } |
14590 | |
14591 | void Sema::WarnOnPendingNoDerefs(ExpressionEvaluationContextRecord &Rec) { |
14592 | for (const Expr *E : Rec.PossibleDerefs) { |
14593 | const DeclRefExpr *DeclRef = CheckPossibleDeref(*this, E); |
14594 | if (DeclRef) { |
14595 | const ValueDecl *Decl = DeclRef->getDecl(); |
14596 | Diag(E->getExprLoc(), diag::warn_dereference_of_noderef_type) |
14597 | << Decl->getName() << E->getSourceRange(); |
14598 | Diag(Decl->getLocation(), diag::note_previous_decl) << Decl->getName(); |
14599 | } else { |
14600 | Diag(E->getExprLoc(), diag::warn_dereference_of_noderef_type_no_decl) |
14601 | << E->getSourceRange(); |
14602 | } |
14603 | } |
14604 | Rec.PossibleDerefs.clear(); |
14605 | } |
14606 | |
14607 | void Sema::PopExpressionEvaluationContext() { |
14608 | ExpressionEvaluationContextRecord& Rec = ExprEvalContexts.back(); |
14609 | unsigned NumTypos = Rec.NumTypos; |
14610 | |
14611 | if (!Rec.Lambdas.empty()) { |
14612 | using ExpressionKind = ExpressionEvaluationContextRecord::ExpressionKind; |
14613 | if (Rec.ExprContext == ExpressionKind::EK_TemplateArgument || Rec.isUnevaluated() || |
14614 | (Rec.isConstantEvaluated() && !getLangOpts().CPlusPlus17)) { |
14615 | unsigned D; |
14616 | if (Rec.isUnevaluated()) { |
14617 | |
14618 | |
14619 | |
14620 | D = diag::err_lambda_unevaluated_operand; |
14621 | } else if (Rec.isConstantEvaluated() && !getLangOpts().CPlusPlus17) { |
14622 | |
14623 | |
14624 | |
14625 | |
14626 | D = diag::err_lambda_in_constant_expression; |
14627 | } else if (Rec.ExprContext == ExpressionKind::EK_TemplateArgument) { |
14628 | |
14629 | |
14630 | D = diag::err_lambda_in_invalid_context; |
14631 | } else |
14632 | llvm_unreachable("Couldn't infer lambda error message."); |
14633 | |
14634 | for (const auto *L : Rec.Lambdas) |
14635 | Diag(L->getBeginLoc(), D); |
14636 | } else { |
14637 | |
14638 | |
14639 | for (auto *Lambda : Rec.Lambdas) { |
14640 | for (auto *C : Lambda->capture_inits()) |
14641 | MarkDeclarationsReferencedInExpr(C); |
14642 | } |
14643 | } |
14644 | } |
14645 | |
14646 | WarnOnPendingNoDerefs(Rec); |
14647 | |
14648 | |
14649 | |
14650 | |
14651 | |
14652 | if (Rec.isUnevaluated() || Rec.isConstantEvaluated()) { |
14653 | ExprCleanupObjects.erase(ExprCleanupObjects.begin() + Rec.NumCleanupObjects, |
14654 | ExprCleanupObjects.end()); |
14655 | Cleanup = Rec.ParentCleanup; |
14656 | CleanupVarDeclMarking(); |
14657 | std::swap(MaybeODRUseExprs, Rec.SavedMaybeODRUseExprs); |
14658 | |
14659 | } else { |
14660 | Cleanup.mergeFrom(Rec.ParentCleanup); |
14661 | MaybeODRUseExprs.insert(Rec.SavedMaybeODRUseExprs.begin(), |
14662 | Rec.SavedMaybeODRUseExprs.end()); |
14663 | } |
14664 | |
14665 | |
14666 | ExprEvalContexts.pop_back(); |
14667 | |
14668 | |
14669 | ExprEvalContexts.back().NumTypos += NumTypos; |
14670 | } |
14671 | |
14672 | void Sema::DiscardCleanupsInEvaluationContext() { |
14673 | ExprCleanupObjects.erase( |
14674 | ExprCleanupObjects.begin() + ExprEvalContexts.back().NumCleanupObjects, |
14675 | ExprCleanupObjects.end()); |
14676 | Cleanup.reset(); |
14677 | MaybeODRUseExprs.clear(); |
14678 | } |
14679 | |
14680 | ExprResult Sema::HandleExprEvaluationContextForTypeof(Expr *E) { |
14681 | ExprResult Result = CheckPlaceholderExpr(E); |
14682 | if (Result.isInvalid()) |
14683 | return ExprError(); |
14684 | E = Result.get(); |
14685 | if (!E->getType()->isVariablyModifiedType()) |
14686 | return E; |
14687 | return TransformToPotentiallyEvaluated(E); |
14688 | } |
14689 | |
14690 | |
14691 | |
14692 | |
14693 | static bool isEvaluatableContext(Sema &SemaRef) { |
14694 | switch (SemaRef.ExprEvalContexts.back().Context) { |
14695 | case Sema::ExpressionEvaluationContext::Unevaluated: |
14696 | case Sema::ExpressionEvaluationContext::UnevaluatedAbstract: |
14697 | |
14698 | return false; |
14699 | |
14700 | case Sema::ExpressionEvaluationContext::UnevaluatedList: |
14701 | case Sema::ExpressionEvaluationContext::ConstantEvaluated: |
14702 | case Sema::ExpressionEvaluationContext::PotentiallyEvaluated: |
14703 | case Sema::ExpressionEvaluationContext::DiscardedStatement: |
14704 | |
14705 | return true; |
14706 | |
14707 | case Sema::ExpressionEvaluationContext::PotentiallyEvaluatedIfUsed: |
14708 | |
14709 | |
14710 | |
14711 | return false; |
14712 | } |
14713 | llvm_unreachable("Invalid context"); |
14714 | } |
14715 | |
14716 | |
14717 | |
14718 | static bool isOdrUseContext(Sema &SemaRef, bool SkipDependentUses = true) { |
14719 | |
14720 | |
14721 | if (SkipDependentUses && SemaRef.CurContext->isDependentContext()) |
14722 | return false; |
14723 | |
14724 | switch (SemaRef.ExprEvalContexts.back().Context) { |
14725 | case Sema::ExpressionEvaluationContext::Unevaluated: |
14726 | case Sema::ExpressionEvaluationContext::UnevaluatedList: |
14727 | case Sema::ExpressionEvaluationContext::UnevaluatedAbstract: |
14728 | case Sema::ExpressionEvaluationContext::DiscardedStatement: |
14729 | return false; |
14730 | |
14731 | case Sema::ExpressionEvaluationContext::ConstantEvaluated: |
14732 | case Sema::ExpressionEvaluationContext::PotentiallyEvaluated: |
14733 | return true; |
14734 | |
14735 | case Sema::ExpressionEvaluationContext::PotentiallyEvaluatedIfUsed: |
14736 | return false; |
14737 | } |
14738 | llvm_unreachable("Invalid context"); |
14739 | } |
14740 | |
14741 | static bool isImplicitlyDefinableConstexprFunction(FunctionDecl *Func) { |
14742 | CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(Func); |
14743 | return Func->isConstexpr() && |
14744 | (Func->isImplicitlyInstantiable() || (MD && !MD->isUserProvided())); |
14745 | } |
14746 | |
14747 | |
14748 | |
14749 | void Sema::MarkFunctionReferenced(SourceLocation Loc, FunctionDecl *Func, |
14750 | bool MightBeOdrUse) { |
14751 | (0) . __assert_fail ("Func && \"No function?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 14751, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Func && "No function?"); |
14752 | |
14753 | Func->setReferenced(); |
14754 | |
14755 | |
14756 | |
14757 | |
14758 | |
14759 | |
14760 | |
14761 | |
14762 | bool OdrUse = MightBeOdrUse && isOdrUseContext(*this); |
14763 | |
14764 | |
14765 | |
14766 | |
14767 | |
14768 | |
14769 | |
14770 | |
14771 | |
14772 | |
14773 | bool NeedDefinition = |
14774 | OdrUse || (isEvaluatableContext(*this) && |
14775 | isImplicitlyDefinableConstexprFunction(Func)); |
14776 | |
14777 | |
14778 | |
14779 | |
14780 | |
14781 | |
14782 | if (NeedDefinition && |
14783 | (Func->getTemplateSpecializationKind() != TSK_Undeclared || |
14784 | Func->getMemberSpecializationInfo())) |
14785 | checkSpecializationVisibility(Loc, Func); |
14786 | |
14787 | |
14788 | |
14789 | |
14790 | |
14791 | |
14792 | |
14793 | |
14794 | |
14795 | |
14796 | const FunctionProtoType *FPT = Func->getType()->getAs<FunctionProtoType>(); |
14797 | if (FPT && isUnresolvedExceptionSpec(FPT->getExceptionSpecType())) |
14798 | ResolveExceptionSpec(Loc, FPT); |
14799 | |
14800 | if (getLangOpts().CUDA) |
14801 | CheckCUDACall(Loc, Func); |
14802 | |
14803 | |
14804 | |
14805 | if ((Func->isUsed() || !OdrUse) && |
14806 | (!NeedDefinition || Func->getBody())) |
14807 | return; |
14808 | |
14809 | |
14810 | if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(Func)) { |
14811 | Constructor = cast<CXXConstructorDecl>(Constructor->getFirstDecl()); |
14812 | if (Constructor->isDefaulted() && !Constructor->isDeleted()) { |
14813 | if (Constructor->isDefaultConstructor()) { |
14814 | if (Constructor->isTrivial() && !Constructor->hasAttr<DLLExportAttr>()) |
14815 | return; |
14816 | DefineImplicitDefaultConstructor(Loc, Constructor); |
14817 | } else if (Constructor->isCopyConstructor()) { |
14818 | DefineImplicitCopyConstructor(Loc, Constructor); |
14819 | } else if (Constructor->isMoveConstructor()) { |
14820 | DefineImplicitMoveConstructor(Loc, Constructor); |
14821 | } |
14822 | } else if (Constructor->getInheritedConstructor()) { |
14823 | DefineInheritingConstructor(Loc, Constructor); |
14824 | } |
14825 | } else if (CXXDestructorDecl *Destructor = |
14826 | dyn_cast<CXXDestructorDecl>(Func)) { |
14827 | Destructor = cast<CXXDestructorDecl>(Destructor->getFirstDecl()); |
14828 | if (Destructor->isDefaulted() && !Destructor->isDeleted()) { |
14829 | if (Destructor->isTrivial() && !Destructor->hasAttr<DLLExportAttr>()) |
14830 | return; |
14831 | DefineImplicitDestructor(Loc, Destructor); |
14832 | } |
14833 | if (Destructor->isVirtual() && getLangOpts().AppleKext) |
14834 | MarkVTableUsed(Loc, Destructor->getParent()); |
14835 | } else if (CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(Func)) { |
14836 | if (MethodDecl->isOverloadedOperator() && |
14837 | MethodDecl->getOverloadedOperator() == OO_Equal) { |
14838 | MethodDecl = cast<CXXMethodDecl>(MethodDecl->getFirstDecl()); |
14839 | if (MethodDecl->isDefaulted() && !MethodDecl->isDeleted()) { |
14840 | if (MethodDecl->isCopyAssignmentOperator()) |
14841 | DefineImplicitCopyAssignment(Loc, MethodDecl); |
14842 | else if (MethodDecl->isMoveAssignmentOperator()) |
14843 | DefineImplicitMoveAssignment(Loc, MethodDecl); |
14844 | } |
14845 | } else if (isa<CXXConversionDecl>(MethodDecl) && |
14846 | MethodDecl->getParent()->isLambda()) { |
14847 | CXXConversionDecl *Conversion = |
14848 | cast<CXXConversionDecl>(MethodDecl->getFirstDecl()); |
14849 | if (Conversion->isLambdaToBlockPointerConversion()) |
14850 | DefineImplicitLambdaToBlockPointerConversion(Loc, Conversion); |
14851 | else |
14852 | DefineImplicitLambdaToFunctionPointerConversion(Loc, Conversion); |
14853 | } else if (MethodDecl->isVirtual() && getLangOpts().AppleKext) |
14854 | MarkVTableUsed(Loc, MethodDecl->getParent()); |
14855 | } |
14856 | |
14857 | |
14858 | |
14859 | if (CurContext == Func) return; |
14860 | |
14861 | |
14862 | |
14863 | if (Func->isImplicitlyInstantiable()) { |
14864 | TemplateSpecializationKind TSK = Func->getTemplateSpecializationKind(); |
14865 | SourceLocation PointOfInstantiation = Func->getPointOfInstantiation(); |
14866 | bool FirstInstantiation = PointOfInstantiation.isInvalid(); |
14867 | if (FirstInstantiation) { |
14868 | PointOfInstantiation = Loc; |
14869 | Func->setTemplateSpecializationKind(TSK, PointOfInstantiation); |
14870 | } else if (TSK != TSK_ImplicitInstantiation) { |
14871 | |
14872 | |
14873 | |
14874 | PointOfInstantiation = Loc; |
14875 | } |
14876 | |
14877 | if (FirstInstantiation || TSK != TSK_ImplicitInstantiation || |
14878 | Func->isConstexpr()) { |
14879 | if (isa<CXXRecordDecl>(Func->getDeclContext()) && |
14880 | cast<CXXRecordDecl>(Func->getDeclContext())->isLocalClass() && |
14881 | CodeSynthesisContexts.size()) |
14882 | PendingLocalImplicitInstantiations.push_back( |
14883 | std::make_pair(Func, PointOfInstantiation)); |
14884 | else if (Func->isConstexpr()) |
14885 | |
14886 | |
14887 | |
14888 | InstantiateFunctionDefinition(PointOfInstantiation, Func); |
14889 | else { |
14890 | Func->setInstantiationIsPending(true); |
14891 | PendingInstantiations.push_back(std::make_pair(Func, |
14892 | PointOfInstantiation)); |
14893 | |
14894 | Consumer.HandleCXXImplicitFunctionInstantiation(Func); |
14895 | } |
14896 | } |
14897 | } else { |
14898 | |
14899 | for (auto i : Func->redecls()) { |
14900 | if (!i->isUsed(false) && i->isImplicitlyInstantiable()) |
14901 | MarkFunctionReferenced(Loc, i, OdrUse); |
14902 | } |
14903 | } |
14904 | |
14905 | if (!OdrUse) return; |
14906 | |
14907 | |
14908 | if (!Func->isDefined()) { |
14909 | if (mightHaveNonExternalLinkage(Func)) |
14910 | UndefinedButUsed.insert(std::make_pair(Func->getCanonicalDecl(), Loc)); |
14911 | else if (Func->getMostRecentDecl()->isInlined() && |
14912 | !LangOpts.GNUInline && |
14913 | !Func->getMostRecentDecl()->hasAttr<GNUInlineAttr>()) |
14914 | UndefinedButUsed.insert(std::make_pair(Func->getCanonicalDecl(), Loc)); |
14915 | else if (isExternalWithNoLinkageType(Func)) |
14916 | UndefinedButUsed.insert(std::make_pair(Func->getCanonicalDecl(), Loc)); |
14917 | } |
14918 | |
14919 | Func->markUsed(Context); |
14920 | |
14921 | if (LangOpts.OpenMP && LangOpts.OpenMPIsDevice) |
14922 | checkOpenMPDeviceFunction(Loc, Func); |
14923 | } |
14924 | |
14925 | static void |
14926 | diagnoseUncapturableValueReference(Sema &S, SourceLocation loc, |
14927 | ValueDecl *var, DeclContext *DC) { |
14928 | DeclContext *VarDC = var->getDeclContext(); |
14929 | |
14930 | |
14931 | |
14932 | |
14933 | if (isa<ParmVarDecl>(var) && |
14934 | isa<TranslationUnitDecl>(VarDC)) |
14935 | return; |
14936 | |
14937 | |
14938 | |
14939 | |
14940 | |
14941 | |
14942 | |
14943 | |
14944 | if (!S.getLangOpts().CPlusPlus && !S.CurContext->isFunctionOrMethod()) |
14945 | return; |
14946 | |
14947 | unsigned ValueKind = isa<BindingDecl>(var) ? 1 : 0; |
14948 | unsigned ContextKind = 3; |
14949 | if (isa<CXXMethodDecl>(VarDC) && |
14950 | cast<CXXRecordDecl>(VarDC->getParent())->isLambda()) { |
14951 | ContextKind = 2; |
14952 | } else if (isa<FunctionDecl>(VarDC)) { |
14953 | ContextKind = 0; |
14954 | } else if (isa<BlockDecl>(VarDC)) { |
14955 | ContextKind = 1; |
14956 | } |
14957 | |
14958 | S.Diag(loc, diag::err_reference_to_local_in_enclosing_context) |
14959 | << var << ValueKind << ContextKind << VarDC; |
14960 | S.Diag(var->getLocation(), diag::note_entity_declared_at) |
14961 | << var; |
14962 | |
14963 | |
14964 | |
14965 | } |
14966 | |
14967 | |
14968 | static bool isVariableAlreadyCapturedInScopeInfo(CapturingScopeInfo *CSI, VarDecl *Var, |
14969 | bool &SubCapturesAreNested, |
14970 | QualType &CaptureType, |
14971 | QualType &DeclRefType) { |
14972 | |
14973 | if (CSI->CaptureMap.count(Var)) { |
14974 | |
14975 | SubCapturesAreNested = true; |
14976 | |
14977 | |
14978 | CaptureType = CSI->getCapture(Var).getCaptureType(); |
14979 | |
14980 | |
14981 | DeclRefType = CaptureType.getNonReferenceType(); |
14982 | |
14983 | |
14984 | |
14985 | |
14986 | const Capture &Cap = CSI->getCapture(Var); |
14987 | if (Cap.isCopyCapture() && |
14988 | !(isa<LambdaScopeInfo>(CSI) && cast<LambdaScopeInfo>(CSI)->Mutable) && |
14989 | !(isa<CapturedRegionScopeInfo>(CSI) && |
14990 | cast<CapturedRegionScopeInfo>(CSI)->CapRegionKind == CR_OpenMP)) |
14991 | DeclRefType.addConst(); |
14992 | return true; |
14993 | } |
14994 | return false; |
14995 | } |
14996 | |
14997 | |
14998 | |
14999 | static DeclContext *getParentOfCapturingContextOrNull(DeclContext *DC, VarDecl *Var, |
15000 | SourceLocation Loc, |
15001 | const bool Diagnose, Sema &S) { |
15002 | if (isa<BlockDecl>(DC) || isa<CapturedDecl>(DC) || isLambdaCallOperator(DC)) |
15003 | return getLambdaAwareParentOfDeclContext(DC); |
15004 | else if (Var->hasLocalStorage()) { |
15005 | if (Diagnose) |
15006 | diagnoseUncapturableValueReference(S, Loc, Var, DC); |
15007 | } |
15008 | return nullptr; |
15009 | } |
15010 | |
15011 | |
15012 | |
15013 | |
15014 | static bool isVariableCapturable(CapturingScopeInfo *CSI, VarDecl *Var, |
15015 | SourceLocation Loc, |
15016 | const bool Diagnose, Sema &S) { |
15017 | |
15018 | bool IsBlock = isa<BlockScopeInfo>(CSI); |
15019 | bool IsLambda = isa<LambdaScopeInfo>(CSI); |
15020 | |
15021 | |
15022 | |
15023 | |
15024 | |
15025 | if (IsLambda && !Var->getDeclName()) { |
15026 | if (Diagnose) { |
15027 | S.Diag(Loc, diag::err_lambda_capture_anonymous_var); |
15028 | S.Diag(Var->getLocation(), diag::note_declared_at); |
15029 | } |
15030 | return false; |
15031 | } |
15032 | |
15033 | |
15034 | if (Var->getType()->isVariablyModifiedType() && IsBlock) { |
15035 | if (Diagnose) { |
15036 | S.Diag(Loc, diag::err_ref_vm_type); |
15037 | S.Diag(Var->getLocation(), diag::note_previous_decl) |
15038 | << Var->getDeclName(); |
15039 | } |
15040 | return false; |
15041 | } |
15042 | |
15043 | |
15044 | if (const RecordType *VTTy = Var->getType()->getAs<RecordType>()) { |
15045 | if (VTTy->getDecl()->hasFlexibleArrayMember()) { |
15046 | if (Diagnose) { |
15047 | if (IsBlock) |
15048 | S.Diag(Loc, diag::err_ref_flexarray_type); |
15049 | else |
15050 | S.Diag(Loc, diag::err_lambda_capture_flexarray_type) |
15051 | << Var->getDeclName(); |
15052 | S.Diag(Var->getLocation(), diag::note_previous_decl) |
15053 | << Var->getDeclName(); |
15054 | } |
15055 | return false; |
15056 | } |
15057 | } |
15058 | const bool HasBlocksAttr = Var->hasAttr<BlocksAttr>(); |
15059 | |
15060 | |
15061 | if (HasBlocksAttr && (IsLambda || isa<CapturedRegionScopeInfo>(CSI))) { |
15062 | if (Diagnose) { |
15063 | S.Diag(Loc, diag::err_capture_block_variable) |
15064 | << Var->getDeclName() << !IsLambda; |
15065 | S.Diag(Var->getLocation(), diag::note_previous_decl) |
15066 | << Var->getDeclName(); |
15067 | } |
15068 | return false; |
15069 | } |
15070 | |
15071 | if (S.getLangOpts().OpenCL && IsBlock && |
15072 | Var->getType()->isBlockPointerType()) { |
15073 | if (Diagnose) |
15074 | S.Diag(Loc, diag::err_opencl_block_ref_block); |
15075 | return false; |
15076 | } |
15077 | |
15078 | return true; |
15079 | } |
15080 | |
15081 | |
15082 | static bool captureInBlock(BlockScopeInfo *BSI, VarDecl *Var, |
15083 | SourceLocation Loc, |
15084 | const bool BuildAndDiagnose, |
15085 | QualType &CaptureType, |
15086 | QualType &DeclRefType, |
15087 | const bool Nested, |
15088 | Sema &S) { |
15089 | Expr *CopyExpr = nullptr; |
15090 | bool ByRef = false; |
15091 | |
15092 | |
15093 | |
15094 | |
15095 | if (!S.getLangOpts().OpenCL && CaptureType->isArrayType()) { |
15096 | if (BuildAndDiagnose) { |
15097 | S.Diag(Loc, diag::err_ref_array_type); |
15098 | S.Diag(Var->getLocation(), diag::note_previous_decl) |
15099 | << Var->getDeclName(); |
15100 | } |
15101 | return false; |
15102 | } |
15103 | |
15104 | |
15105 | if (CaptureType.getObjCLifetime() == Qualifiers::OCL_Autoreleasing) { |
15106 | if (BuildAndDiagnose) { |
15107 | S.Diag(Loc, diag::err_arc_autoreleasing_capture) |
15108 | << 0; |
15109 | S.Diag(Var->getLocation(), diag::note_previous_decl) |
15110 | << Var->getDeclName(); |
15111 | } |
15112 | return false; |
15113 | } |
15114 | |
15115 | |
15116 | if (const auto *PT = CaptureType->getAs<PointerType>()) { |
15117 | |
15118 | |
15119 | |
15120 | |
15121 | auto IsObjCOwnershipAttributedType = [](QualType Ty) { |
15122 | while (const auto *AttrTy = Ty->getAs<AttributedType>()) { |
15123 | if (AttrTy->getAttrKind() == attr::ObjCOwnership) |
15124 | return true; |
15125 | |
15126 | |
15127 | Ty = AttrTy->getModifiedType(); |
15128 | } |
15129 | |
15130 | return false; |
15131 | }; |
15132 | |
15133 | QualType PointeeTy = PT->getPointeeType(); |
15134 | |
15135 | if (PointeeTy->getAs<ObjCObjectPointerType>() && |
15136 | PointeeTy.getObjCLifetime() == Qualifiers::OCL_Autoreleasing && |
15137 | !IsObjCOwnershipAttributedType(PointeeTy)) { |
15138 | if (BuildAndDiagnose) { |
15139 | SourceLocation VarLoc = Var->getLocation(); |
15140 | S.Diag(Loc, diag::warn_block_capture_autoreleasing); |
15141 | S.Diag(VarLoc, diag::note_declare_parameter_strong); |
15142 | } |
15143 | } |
15144 | } |
15145 | |
15146 | const bool HasBlocksAttr = Var->hasAttr<BlocksAttr>(); |
15147 | if (HasBlocksAttr || CaptureType->isReferenceType() || |
15148 | (S.getLangOpts().OpenMP && S.isOpenMPCapturedDecl(Var))) { |
15149 | |
15150 | |
15151 | ByRef = true; |
15152 | } else { |
15153 | |
15154 | CaptureType = CaptureType.getNonReferenceType().withConst(); |
15155 | DeclRefType = CaptureType; |
15156 | |
15157 | if (S.getLangOpts().CPlusPlus && BuildAndDiagnose) { |
15158 | if (const RecordType *Record = DeclRefType->getAs<RecordType>()) { |
15159 | |
15160 | |
15161 | |
15162 | |
15163 | |
15164 | if (isa<ParmVarDecl>(Var)) |
15165 | S.FinalizeVarWithDestructor(Var, Record); |
15166 | |
15167 | |
15168 | |
15169 | EnterExpressionEvaluationContext scope( |
15170 | S, Sema::ExpressionEvaluationContext::PotentiallyEvaluated); |
15171 | |
15172 | |
15173 | |
15174 | |
15175 | Expr *DeclRef = new (S.Context) DeclRefExpr( |
15176 | S.Context, Var, Nested, DeclRefType.withConst(), VK_LValue, Loc); |
15177 | |
15178 | ExprResult Result |
15179 | = S.PerformCopyInitialization( |
15180 | InitializedEntity::InitializeBlock(Var->getLocation(), |
15181 | CaptureType, false), |
15182 | Loc, DeclRef); |
15183 | |
15184 | |
15185 | |
15186 | |
15187 | if (!Result.isInvalid() && |
15188 | !cast<CXXConstructExpr>(Result.get())->getConstructor() |
15189 | ->isTrivial()) { |
15190 | Result = S.MaybeCreateExprWithCleanups(Result); |
15191 | CopyExpr = Result.get(); |
15192 | } |
15193 | } |
15194 | } |
15195 | } |
15196 | |
15197 | |
15198 | if (BuildAndDiagnose) |
15199 | BSI->addCapture(Var, HasBlocksAttr, ByRef, Nested, Loc, |
15200 | SourceLocation(), CaptureType, CopyExpr); |
15201 | |
15202 | return true; |
15203 | |
15204 | } |
15205 | |
15206 | |
15207 | |
15208 | static bool captureInCapturedRegion(CapturedRegionScopeInfo *RSI, |
15209 | VarDecl *Var, |
15210 | SourceLocation Loc, |
15211 | const bool BuildAndDiagnose, |
15212 | QualType &CaptureType, |
15213 | QualType &DeclRefType, |
15214 | const bool RefersToCapturedVariable, |
15215 | Sema &S) { |
15216 | |
15217 | bool ByRef = true; |
15218 | |
15219 | if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP) { |
15220 | if (S.isOpenMPCapturedDecl(Var)) { |
15221 | bool HasConst = DeclRefType.isConstQualified(); |
15222 | DeclRefType = DeclRefType.getUnqualifiedType(); |
15223 | |
15224 | if (HasConst) |
15225 | DeclRefType.addConst(); |
15226 | } |
15227 | ByRef = S.isOpenMPCapturedByRef(Var, RSI->OpenMPLevel); |
15228 | } |
15229 | |
15230 | if (ByRef) |
15231 | CaptureType = S.Context.getLValueReferenceType(DeclRefType); |
15232 | else |
15233 | CaptureType = DeclRefType; |
15234 | |
15235 | Expr *CopyExpr = nullptr; |
15236 | if (BuildAndDiagnose) { |
15237 | |
15238 | |
15239 | |
15240 | RecordDecl *RD = RSI->TheRecordDecl; |
15241 | |
15242 | FieldDecl *Field |
15243 | = FieldDecl::Create(S.Context, RD, Loc, Loc, nullptr, CaptureType, |
15244 | S.Context.getTrivialTypeSourceInfo(CaptureType, Loc), |
15245 | nullptr, false, ICIS_NoInit); |
15246 | Field->setImplicit(true); |
15247 | Field->setAccess(AS_private); |
15248 | RD->addDecl(Field); |
15249 | if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP) |
15250 | S.setOpenMPCaptureKind(Field, Var, RSI->OpenMPLevel); |
15251 | |
15252 | CopyExpr = new (S.Context) DeclRefExpr( |
15253 | S.Context, Var, RefersToCapturedVariable, DeclRefType, VK_LValue, Loc); |
15254 | Var->setReferenced(true); |
15255 | Var->markUsed(S.Context); |
15256 | } |
15257 | |
15258 | |
15259 | if (BuildAndDiagnose) |
15260 | RSI->addCapture(Var, , ByRef, RefersToCapturedVariable, Loc, |
15261 | SourceLocation(), CaptureType, CopyExpr); |
15262 | |
15263 | |
15264 | return true; |
15265 | } |
15266 | |
15267 | |
15268 | |
15269 | static void addAsFieldToClosureType(Sema &S, LambdaScopeInfo *LSI, |
15270 | QualType FieldType, QualType DeclRefType, |
15271 | SourceLocation Loc, |
15272 | bool RefersToCapturedVariable) { |
15273 | CXXRecordDecl *Lambda = LSI->Lambda; |
15274 | |
15275 | |
15276 | FieldDecl *Field |
15277 | = FieldDecl::Create(S.Context, Lambda, Loc, Loc, nullptr, FieldType, |
15278 | S.Context.getTrivialTypeSourceInfo(FieldType, Loc), |
15279 | nullptr, false, ICIS_NoInit); |
15280 | |
15281 | |
15282 | if (!FieldType->isDependentType()) { |
15283 | if (S.RequireCompleteType(Loc, FieldType, diag::err_field_incomplete)) { |
15284 | Lambda->setInvalidDecl(); |
15285 | Field->setInvalidDecl(); |
15286 | } else { |
15287 | NamedDecl *Def; |
15288 | FieldType->isIncompleteType(&Def); |
15289 | if (Def && Def->isInvalidDecl()) { |
15290 | Lambda->setInvalidDecl(); |
15291 | Field->setInvalidDecl(); |
15292 | } |
15293 | } |
15294 | } |
15295 | Field->setImplicit(true); |
15296 | Field->setAccess(AS_private); |
15297 | Lambda->addDecl(Field); |
15298 | } |
15299 | |
15300 | |
15301 | static bool captureInLambda(LambdaScopeInfo *LSI, |
15302 | VarDecl *Var, |
15303 | SourceLocation Loc, |
15304 | const bool BuildAndDiagnose, |
15305 | QualType &CaptureType, |
15306 | QualType &DeclRefType, |
15307 | const bool RefersToCapturedVariable, |
15308 | const Sema::TryCaptureKind Kind, |
15309 | SourceLocation EllipsisLoc, |
15310 | const bool IsTopScope, |
15311 | Sema &S) { |
15312 | |
15313 | |
15314 | bool ByRef = false; |
15315 | if (IsTopScope && Kind != Sema::TryCapture_Implicit) { |
15316 | ByRef = (Kind == Sema::TryCapture_ExplicitByRef); |
15317 | } else { |
15318 | ByRef = (LSI->ImpCaptureStyle == LambdaScopeInfo::ImpCap_LambdaByref); |
15319 | } |
15320 | |
15321 | |
15322 | if (ByRef) { |
15323 | |
15324 | |
15325 | |
15326 | |
15327 | |
15328 | |
15329 | |
15330 | |
15331 | |
15332 | |
15333 | |
15334 | |
15335 | CaptureType = S.Context.getLValueReferenceType(DeclRefType); |
15336 | } else { |
15337 | |
15338 | |
15339 | |
15340 | |
15341 | |
15342 | |
15343 | |
15344 | |
15345 | |
15346 | |
15347 | if (const ReferenceType *RefType = CaptureType->getAs<ReferenceType>()){ |
15348 | if (!RefType->getPointeeType()->isFunctionType()) |
15349 | CaptureType = RefType->getPointeeType(); |
15350 | } |
15351 | |
15352 | |
15353 | if (CaptureType.getObjCLifetime() == Qualifiers::OCL_Autoreleasing) { |
15354 | if (BuildAndDiagnose) { |
15355 | S.Diag(Loc, diag::err_arc_autoreleasing_capture) << 1; |
15356 | S.Diag(Var->getLocation(), diag::note_previous_decl) |
15357 | << Var->getDeclName(); |
15358 | } |
15359 | return false; |
15360 | } |
15361 | |
15362 | |
15363 | if (BuildAndDiagnose) { |
15364 | if (!CaptureType->isDependentType() && |
15365 | S.RequireCompleteType(Loc, CaptureType, |
15366 | diag::err_capture_of_incomplete_type, |
15367 | Var->getDeclName())) |
15368 | return false; |
15369 | |
15370 | if (S.RequireNonAbstractType(Loc, CaptureType, |
15371 | diag::err_capture_of_abstract_type)) |
15372 | return false; |
15373 | } |
15374 | } |
15375 | |
15376 | |
15377 | if (BuildAndDiagnose) |
15378 | addAsFieldToClosureType(S, LSI, CaptureType, DeclRefType, Loc, |
15379 | RefersToCapturedVariable); |
15380 | |
15381 | |
15382 | if (ByRef) |
15383 | DeclRefType = CaptureType.getNonReferenceType(); |
15384 | else { |
15385 | |
15386 | |
15387 | |
15388 | |
15389 | |
15390 | DeclRefType = CaptureType.getNonReferenceType(); |
15391 | if (!LSI->Mutable && !CaptureType->isReferenceType()) |
15392 | DeclRefType.addConst(); |
15393 | } |
15394 | |
15395 | |
15396 | if (BuildAndDiagnose) |
15397 | LSI->addCapture(Var, , ByRef, RefersToCapturedVariable, |
15398 | Loc, EllipsisLoc, CaptureType, ); |
15399 | |
15400 | return true; |
15401 | } |
15402 | |
15403 | bool Sema::tryCaptureVariable( |
15404 | VarDecl *Var, SourceLocation ExprLoc, TryCaptureKind Kind, |
15405 | SourceLocation EllipsisLoc, bool BuildAndDiagnose, QualType &CaptureType, |
15406 | QualType &DeclRefType, const unsigned *const FunctionScopeIndexToStopAt) { |
15407 | |
15408 | |
15409 | DeclContext *VarDC = Var->getDeclContext(); |
15410 | if (Var->isInitCapture()) |
15411 | VarDC = VarDC->getParent(); |
15412 | |
15413 | DeclContext *DC = CurContext; |
15414 | const unsigned MaxFunctionScopesIndex = FunctionScopeIndexToStopAt |
15415 | ? *FunctionScopeIndexToStopAt : FunctionScopes.size() - 1; |
15416 | |
15417 | |
15418 | if (FunctionScopeIndexToStopAt) { |
15419 | unsigned FSIndex = FunctionScopes.size() - 1; |
15420 | while (FSIndex != MaxFunctionScopesIndex) { |
15421 | DC = getLambdaAwareParentOfDeclContext(DC); |
15422 | --FSIndex; |
15423 | } |
15424 | } |
15425 | |
15426 | |
15427 | |
15428 | |
15429 | if (VarDC == DC) return true; |
15430 | |
15431 | |
15432 | |
15433 | bool IsGlobal = !Var->hasLocalStorage(); |
15434 | if (IsGlobal && !(LangOpts.OpenMP && isOpenMPCapturedDecl(Var))) |
15435 | return true; |
15436 | Var = Var->getCanonicalDecl(); |
15437 | |
15438 | |
15439 | |
15440 | |
15441 | |
15442 | |
15443 | |
15444 | |
15445 | |
15446 | CaptureType = Var->getType(); |
15447 | DeclRefType = CaptureType.getNonReferenceType(); |
15448 | bool Nested = false; |
15449 | bool Explicit = (Kind != TryCapture_Implicit); |
15450 | unsigned FunctionScopesIndex = MaxFunctionScopesIndex; |
15451 | do { |
15452 | |
15453 | |
15454 | DeclContext *ParentDC = getParentOfCapturingContextOrNull(DC, Var, |
15455 | ExprLoc, |
15456 | BuildAndDiagnose, |
15457 | *this); |
15458 | |
15459 | |
15460 | |
15461 | if (!ParentDC) { |
15462 | if (IsGlobal) { |
15463 | FunctionScopesIndex = MaxFunctionScopesIndex - 1; |
15464 | break; |
15465 | } |
15466 | return true; |
15467 | } |
15468 | |
15469 | FunctionScopeInfo *FSI = FunctionScopes[FunctionScopesIndex]; |
15470 | CapturingScopeInfo *CSI = cast<CapturingScopeInfo>(FSI); |
15471 | |
15472 | |
15473 | |
15474 | if (isVariableAlreadyCapturedInScopeInfo(CSI, Var, Nested, CaptureType, |
15475 | DeclRefType)) { |
15476 | CSI->getCapture(Var).markUsed(BuildAndDiagnose); |
15477 | break; |
15478 | } |
15479 | |
15480 | |
15481 | |
15482 | |
15483 | if (isGenericLambdaCallOperatorSpecialization(DC)) { |
15484 | if (BuildAndDiagnose) { |
15485 | LambdaScopeInfo *LSI = cast<LambdaScopeInfo>(CSI); |
15486 | if (LSI->ImpCaptureStyle == CapturingScopeInfo::ImpCap_None) { |
15487 | Diag(ExprLoc, diag::err_lambda_impcap) << Var->getDeclName(); |
15488 | Diag(Var->getLocation(), diag::note_previous_decl) |
15489 | << Var->getDeclName(); |
15490 | Diag(LSI->Lambda->getBeginLoc(), diag::note_lambda_decl); |
15491 | } else |
15492 | diagnoseUncapturableValueReference(*this, ExprLoc, Var, DC); |
15493 | } |
15494 | return true; |
15495 | } |
15496 | |
15497 | |
15498 | |
15499 | if (!isVariableCapturable(CSI, Var, ExprLoc, BuildAndDiagnose, *this)) |
15500 | return true; |
15501 | |
15502 | |
15503 | if (Var->getType()->isVariablyModifiedType()) { |
15504 | |
15505 | |
15506 | QualType QTy = Var->getType(); |
15507 | if (ParmVarDecl *PVD = dyn_cast_or_null<ParmVarDecl>(Var)) |
15508 | QTy = PVD->getOriginalType(); |
15509 | captureVariablyModifiedType(Context, QTy, CSI); |
15510 | } |
15511 | |
15512 | if (getLangOpts().OpenMP) { |
15513 | if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(CSI)) { |
15514 | |
15515 | |
15516 | |
15517 | if (RSI->CapRegionKind == CR_OpenMP) { |
15518 | bool IsOpenMPPrivateDecl = isOpenMPPrivateDecl(Var, RSI->OpenMPLevel); |
15519 | auto IsTargetCap = !IsOpenMPPrivateDecl && |
15520 | isOpenMPTargetCapturedDecl(Var, RSI->OpenMPLevel); |
15521 | |
15522 | |
15523 | |
15524 | if (IsTargetCap) |
15525 | adjustOpenMPTargetScopeIndex(FunctionScopesIndex, RSI->OpenMPLevel); |
15526 | |
15527 | if (IsTargetCap || IsOpenMPPrivateDecl) { |
15528 | Nested = !IsTargetCap; |
15529 | DeclRefType = DeclRefType.getUnqualifiedType(); |
15530 | CaptureType = Context.getLValueReferenceType(DeclRefType); |
15531 | break; |
15532 | } |
15533 | } |
15534 | } |
15535 | } |
15536 | if (CSI->ImpCaptureStyle == CapturingScopeInfo::ImpCap_None && !Explicit) { |
15537 | |
15538 | |
15539 | if (BuildAndDiagnose) { |
15540 | Diag(ExprLoc, diag::err_lambda_impcap) << Var->getDeclName(); |
15541 | Diag(Var->getLocation(), diag::note_previous_decl) |
15542 | << Var->getDeclName(); |
15543 | if (cast<LambdaScopeInfo>(CSI)->Lambda) |
15544 | Diag(cast<LambdaScopeInfo>(CSI)->Lambda->getBeginLoc(), |
15545 | diag::note_lambda_decl); |
15546 | |
15547 | |
15548 | |
15549 | |
15550 | |
15551 | |
15552 | |
15553 | |
15554 | |
15555 | |
15556 | |
15557 | } |
15558 | return true; |
15559 | } |
15560 | |
15561 | FunctionScopesIndex--; |
15562 | DC = ParentDC; |
15563 | Explicit = false; |
15564 | } while (!VarDC->Equals(DC)); |
15565 | |
15566 | |
15567 | |
15568 | |
15569 | |
15570 | |
15571 | for (unsigned I = ++FunctionScopesIndex, N = MaxFunctionScopesIndex + 1; I != N; |
15572 | ++I) { |
15573 | CapturingScopeInfo *CSI = cast<CapturingScopeInfo>(FunctionScopes[I]); |
15574 | |
15575 | if (BlockScopeInfo *BSI = dyn_cast<BlockScopeInfo>(CSI)) { |
15576 | if (!captureInBlock(BSI, Var, ExprLoc, |
15577 | BuildAndDiagnose, CaptureType, |
15578 | DeclRefType, Nested, *this)) |
15579 | return true; |
15580 | Nested = true; |
15581 | } else if (CapturedRegionScopeInfo *RSI = dyn_cast<CapturedRegionScopeInfo>(CSI)) { |
15582 | if (!captureInCapturedRegion(RSI, Var, ExprLoc, |
15583 | BuildAndDiagnose, CaptureType, |
15584 | DeclRefType, Nested, *this)) |
15585 | return true; |
15586 | Nested = true; |
15587 | } else { |
15588 | LambdaScopeInfo *LSI = cast<LambdaScopeInfo>(CSI); |
15589 | if (!captureInLambda(LSI, Var, ExprLoc, |
15590 | BuildAndDiagnose, CaptureType, |
15591 | DeclRefType, Nested, Kind, EllipsisLoc, |
15592 | == N - 1, *this)) |
15593 | return true; |
15594 | Nested = true; |
15595 | } |
15596 | } |
15597 | return false; |
15598 | } |
15599 | |
15600 | bool Sema::tryCaptureVariable(VarDecl *Var, SourceLocation Loc, |
15601 | TryCaptureKind Kind, SourceLocation EllipsisLoc) { |
15602 | QualType CaptureType; |
15603 | QualType DeclRefType; |
15604 | return tryCaptureVariable(Var, Loc, Kind, EllipsisLoc, |
15605 | , CaptureType, |
15606 | DeclRefType, nullptr); |
15607 | } |
15608 | |
15609 | bool Sema::NeedToCaptureVariable(VarDecl *Var, SourceLocation Loc) { |
15610 | QualType CaptureType; |
15611 | QualType DeclRefType; |
15612 | return !tryCaptureVariable(Var, Loc, TryCapture_Implicit, SourceLocation(), |
15613 | , CaptureType, |
15614 | DeclRefType, nullptr); |
15615 | } |
15616 | |
15617 | QualType Sema::getCapturedDeclRefType(VarDecl *Var, SourceLocation Loc) { |
15618 | QualType CaptureType; |
15619 | QualType DeclRefType; |
15620 | |
15621 | |
15622 | if (tryCaptureVariable(Var, Loc, TryCapture_Implicit, SourceLocation(), |
15623 | , CaptureType, |
15624 | DeclRefType, nullptr)) |
15625 | return QualType(); |
15626 | |
15627 | return DeclRefType; |
15628 | } |
15629 | |
15630 | |
15631 | |
15632 | |
15633 | |
15634 | |
15635 | |
15636 | static inline bool IsVariableNonDependentAndAConstantExpression(VarDecl *Var, |
15637 | ASTContext &Context) { |
15638 | |
15639 | if (Var->getType()->isDependentType()) |
15640 | return false; |
15641 | const VarDecl *DefVD = nullptr; |
15642 | Var->getAnyInitializer(DefVD); |
15643 | if (!DefVD) |
15644 | return false; |
15645 | EvaluatedStmt *Eval = DefVD->ensureEvaluatedStmt(); |
15646 | Expr *Init = cast<Expr>(Eval->Value); |
15647 | if (Init->isValueDependent()) |
15648 | return false; |
15649 | return IsVariableAConstantExpression(Var, Context); |
15650 | } |
15651 | |
15652 | |
15653 | void Sema::UpdateMarkingForLValueToRValue(Expr *E) { |
15654 | |
15655 | |
15656 | |
15657 | |
15658 | |
15659 | MaybeODRUseExprs.erase(E->IgnoreParens()); |
15660 | |
15661 | |
15662 | |
15663 | |
15664 | |
15665 | if (LambdaScopeInfo *LSI = getCurLambda()) { |
15666 | Expr *SansParensExpr = E->IgnoreParens(); |
15667 | VarDecl *Var = nullptr; |
15668 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(SansParensExpr)) |
15669 | Var = dyn_cast<VarDecl>(DRE->getFoundDecl()); |
15670 | else if (MemberExpr *ME = dyn_cast<MemberExpr>(SansParensExpr)) |
15671 | Var = dyn_cast<VarDecl>(ME->getMemberDecl()); |
15672 | |
15673 | if (Var && IsVariableNonDependentAndAConstantExpression(Var, Context)) |
15674 | LSI->markVariableExprAsNonODRUsed(SansParensExpr); |
15675 | } |
15676 | } |
15677 | |
15678 | ExprResult Sema::ActOnConstantExpression(ExprResult Res) { |
15679 | Res = CorrectDelayedTyposInExpr(Res); |
15680 | |
15681 | if (!Res.isUsable()) |
15682 | return Res; |
15683 | |
15684 | |
15685 | |
15686 | |
15687 | |
15688 | UpdateMarkingForLValueToRValue(Res.get()); |
15689 | return Res; |
15690 | } |
15691 | |
15692 | void Sema::CleanupVarDeclMarking() { |
15693 | |
15694 | |
15695 | MaybeODRUseExprSet LocalMaybeODRUseExprs; |
15696 | std::swap(LocalMaybeODRUseExprs, MaybeODRUseExprs); |
15697 | |
15698 | for (Expr *E : LocalMaybeODRUseExprs) { |
15699 | VarDecl *Var; |
15700 | SourceLocation Loc; |
15701 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { |
15702 | Var = cast<VarDecl>(DRE->getDecl()); |
15703 | Loc = DRE->getLocation(); |
15704 | } else if (MemberExpr *ME = dyn_cast<MemberExpr>(E)) { |
15705 | Var = cast<VarDecl>(ME->getMemberDecl()); |
15706 | Loc = ME->getMemberLoc(); |
15707 | } else { |
15708 | llvm_unreachable("Unexpected expression"); |
15709 | } |
15710 | |
15711 | MarkVarDeclODRUsed(Var, Loc, *this, |
15712 | nullptr); |
15713 | } |
15714 | |
15715 | (0) . __assert_fail ("MaybeODRUseExprs.empty() && \"MarkVarDeclODRUsed failed to cleanup MaybeODRUseExprs?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15716, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(MaybeODRUseExprs.empty() && |
15716 | (0) . __assert_fail ("MaybeODRUseExprs.empty() && \"MarkVarDeclODRUsed failed to cleanup MaybeODRUseExprs?\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15716, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "MarkVarDeclODRUsed failed to cleanup MaybeODRUseExprs?"); |
15717 | } |
15718 | |
15719 | static void DoMarkVarDeclReferenced(Sema &SemaRef, SourceLocation Loc, |
15720 | VarDecl *Var, Expr *E) { |
15721 | (0) . __assert_fail ("(!E || isa(E) || isa(E)) && \"Invalid Expr argument to DoMarkVarDeclReferenced\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15722, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((!E || isa<DeclRefExpr>(E) || isa<MemberExpr>(E)) && |
15722 | (0) . __assert_fail ("(!E || isa(E) || isa(E)) && \"Invalid Expr argument to DoMarkVarDeclReferenced\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15722, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Invalid Expr argument to DoMarkVarDeclReferenced"); |
15723 | Var->setReferenced(); |
15724 | |
15725 | TemplateSpecializationKind TSK = Var->getTemplateSpecializationKind(); |
15726 | |
15727 | bool OdrUseContext = isOdrUseContext(SemaRef); |
15728 | bool UsableInConstantExpr = |
15729 | Var->isUsableInConstantExpressions(SemaRef.Context); |
15730 | bool NeedDefinition = |
15731 | OdrUseContext || (isEvaluatableContext(SemaRef) && UsableInConstantExpr); |
15732 | |
15733 | VarTemplateSpecializationDecl *VarSpec = |
15734 | dyn_cast<VarTemplateSpecializationDecl>(Var); |
15735 | (0) . __assert_fail ("!isa(Var) && \"Can't instantiate a partial template specialization.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15736, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!isa<VarTemplatePartialSpecializationDecl>(Var) && |
15736 | (0) . __assert_fail ("!isa(Var) && \"Can't instantiate a partial template specialization.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15736, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Can't instantiate a partial template specialization."); |
15737 | |
15738 | |
15739 | |
15740 | |
15741 | if (NeedDefinition && TSK != TSK_Undeclared && |
15742 | !isa<VarTemplateSpecializationDecl>(Var)) |
15743 | SemaRef.checkSpecializationVisibility(Loc, Var); |
15744 | |
15745 | |
15746 | |
15747 | |
15748 | |
15749 | if (NeedDefinition && isTemplateInstantiation(TSK)) { |
15750 | |
15751 | |
15752 | |
15753 | bool TryInstantiating = |
15754 | TSK == TSK_ImplicitInstantiation || |
15755 | (TSK == TSK_ExplicitInstantiationDeclaration && UsableInConstantExpr); |
15756 | |
15757 | if (TryInstantiating) { |
15758 | SourceLocation PointOfInstantiation = Var->getPointOfInstantiation(); |
15759 | bool FirstInstantiation = PointOfInstantiation.isInvalid(); |
15760 | if (FirstInstantiation) { |
15761 | PointOfInstantiation = Loc; |
15762 | Var->setTemplateSpecializationKind(TSK, PointOfInstantiation); |
15763 | } |
15764 | |
15765 | bool InstantiationDependent = false; |
15766 | bool IsNonDependent = |
15767 | VarSpec ? !TemplateSpecializationType::anyDependentTemplateArguments( |
15768 | VarSpec->getTemplateArgsInfo(), InstantiationDependent) |
15769 | : true; |
15770 | |
15771 | |
15772 | if (IsNonDependent) { |
15773 | if (UsableInConstantExpr) { |
15774 | |
15775 | |
15776 | SemaRef.InstantiateVariableDefinition(PointOfInstantiation, Var); |
15777 | } else if (FirstInstantiation || |
15778 | isa<VarTemplateSpecializationDecl>(Var)) { |
15779 | |
15780 | |
15781 | |
15782 | |
15783 | |
15784 | SemaRef.PendingInstantiations |
15785 | .push_back(std::make_pair(Var, PointOfInstantiation)); |
15786 | } |
15787 | } |
15788 | } |
15789 | } |
15790 | |
15791 | |
15792 | |
15793 | |
15794 | |
15795 | |
15796 | |
15797 | |
15798 | |
15799 | if (OdrUseContext && E && |
15800 | IsVariableAConstantExpression(Var, SemaRef.Context)) { |
15801 | |
15802 | |
15803 | if (!Var->getType()->isReferenceType() || |
15804 | (SemaRef.LangOpts.OpenMP && SemaRef.isOpenMPCapturedDecl(Var))) |
15805 | SemaRef.MaybeODRUseExprs.insert(E); |
15806 | } else if (OdrUseContext) { |
15807 | MarkVarDeclODRUsed(Var, Loc, SemaRef, |
15808 | nullptr); |
15809 | } else if (isOdrUseContext(SemaRef, )) { |
15810 | |
15811 | |
15812 | |
15813 | |
15814 | const bool RefersToEnclosingScope = |
15815 | (SemaRef.CurContext != Var->getDeclContext() && |
15816 | Var->getDeclContext()->isFunctionOrMethod() && Var->hasLocalStorage()); |
15817 | if (RefersToEnclosingScope) { |
15818 | LambdaScopeInfo *const LSI = |
15819 | SemaRef.getCurLambda(); |
15820 | if (LSI && (!LSI->CallOperator || |
15821 | !LSI->CallOperator->Encloses(Var->getDeclContext()))) { |
15822 | |
15823 | |
15824 | |
15825 | |
15826 | |
15827 | |
15828 | |
15829 | |
15830 | (0) . __assert_fail ("E && \"Capture variable should be used in an expression.\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 15830, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E && "Capture variable should be used in an expression."); |
15831 | if (!Var->getType()->isReferenceType() || |
15832 | !IsVariableNonDependentAndAConstantExpression(Var, SemaRef.Context)) |
15833 | LSI->addPotentialCapture(E->IgnoreParens()); |
15834 | } |
15835 | } |
15836 | } |
15837 | } |
15838 | |
15839 | |
15840 | |
15841 | |
15842 | void Sema::MarkVariableReferenced(SourceLocation Loc, VarDecl *Var) { |
15843 | DoMarkVarDeclReferenced(*this, Loc, Var, nullptr); |
15844 | } |
15845 | |
15846 | static void MarkExprReferenced(Sema &SemaRef, SourceLocation Loc, |
15847 | Decl *D, Expr *E, bool MightBeOdrUse) { |
15848 | if (SemaRef.isInOpenMPDeclareTargetContext()) |
15849 | SemaRef.checkDeclIsAllowedInOpenMPTarget(E, D); |
15850 | |
15851 | if (VarDecl *Var = dyn_cast<VarDecl>(D)) { |
15852 | DoMarkVarDeclReferenced(SemaRef, Loc, Var, E); |
15853 | return; |
15854 | } |
15855 | |
15856 | SemaRef.MarkAnyDeclReferenced(Loc, D, MightBeOdrUse); |
15857 | |
15858 | |
15859 | |
15860 | const MemberExpr *ME = dyn_cast<MemberExpr>(E); |
15861 | if (!ME) |
15862 | return; |
15863 | CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(ME->getMemberDecl()); |
15864 | if (!MD) |
15865 | return; |
15866 | |
15867 | bool IsVirtualCall = MD->isVirtual() && |
15868 | ME->performsVirtualDispatch(SemaRef.getLangOpts()); |
15869 | if (!IsVirtualCall) |
15870 | return; |
15871 | |
15872 | |
15873 | |
15874 | CXXMethodDecl *DM = MD->getDevirtualizedMethod( |
15875 | ME->getBase(), SemaRef.getLangOpts().AppleKext); |
15876 | if (DM) |
15877 | SemaRef.MarkAnyDeclReferenced(Loc, DM, MightBeOdrUse); |
15878 | } |
15879 | |
15880 | |
15881 | void Sema::MarkDeclRefReferenced(DeclRefExpr *E, const Expr *Base) { |
15882 | |
15883 | |
15884 | |
15885 | bool OdrUse = true; |
15886 | if (const CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(E->getDecl())) |
15887 | if (Method->isVirtual() && |
15888 | !Method->getDevirtualizedMethod(Base, getLangOpts().AppleKext)) |
15889 | OdrUse = false; |
15890 | MarkExprReferenced(*this, E->getLocation(), E->getDecl(), E, OdrUse); |
15891 | } |
15892 | |
15893 | |
15894 | void Sema::MarkMemberReferenced(MemberExpr *E) { |
15895 | |
15896 | |
15897 | |
15898 | |
15899 | |
15900 | |
15901 | bool MightBeOdrUse = true; |
15902 | if (E->performsVirtualDispatch(getLangOpts())) { |
15903 | if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(E->getMemberDecl())) |
15904 | if (Method->isPure()) |
15905 | MightBeOdrUse = false; |
15906 | } |
15907 | SourceLocation Loc = |
15908 | E->getMemberLoc().isValid() ? E->getMemberLoc() : E->getBeginLoc(); |
15909 | MarkExprReferenced(*this, Loc, E->getMemberDecl(), E, MightBeOdrUse); |
15910 | } |
15911 | |
15912 | |
15913 | |
15914 | |
15915 | |
15916 | void Sema::MarkAnyDeclReferenced(SourceLocation Loc, Decl *D, |
15917 | bool MightBeOdrUse) { |
15918 | if (MightBeOdrUse) { |
15919 | if (auto *VD = dyn_cast<VarDecl>(D)) { |
15920 | MarkVariableReferenced(Loc, VD); |
15921 | return; |
15922 | } |
15923 | } |
15924 | if (auto *FD = dyn_cast<FunctionDecl>(D)) { |
15925 | MarkFunctionReferenced(Loc, FD, MightBeOdrUse); |
15926 | return; |
15927 | } |
15928 | D->setReferenced(); |
15929 | } |
15930 | |
15931 | namespace { |
15932 | |
15933 | |
15934 | |
15935 | |
15936 | |
15937 | |
15938 | |
15939 | class MarkReferencedDecls : public RecursiveASTVisitor<MarkReferencedDecls> { |
15940 | Sema &S; |
15941 | SourceLocation Loc; |
15942 | |
15943 | public: |
15944 | typedef RecursiveASTVisitor<MarkReferencedDecls> Inherited; |
15945 | |
15946 | MarkReferencedDecls(Sema &S, SourceLocation Loc) : S(S), Loc(Loc) { } |
15947 | |
15948 | bool TraverseTemplateArgument(const TemplateArgument &Arg); |
15949 | }; |
15950 | } |
15951 | |
15952 | bool MarkReferencedDecls::TraverseTemplateArgument( |
15953 | const TemplateArgument &Arg) { |
15954 | { |
15955 | |
15956 | EnterExpressionEvaluationContext Evaluated( |
15957 | S, Sema::ExpressionEvaluationContext::ConstantEvaluated); |
15958 | if (Arg.getKind() == TemplateArgument::Declaration) { |
15959 | if (Decl *D = Arg.getAsDecl()) |
15960 | S.MarkAnyDeclReferenced(Loc, D, true); |
15961 | } else if (Arg.getKind() == TemplateArgument::Expression) { |
15962 | S.MarkDeclarationsReferencedInExpr(Arg.getAsExpr(), false); |
15963 | } |
15964 | } |
15965 | |
15966 | return Inherited::TraverseTemplateArgument(Arg); |
15967 | } |
15968 | |
15969 | void Sema::MarkDeclarationsReferencedInType(SourceLocation Loc, QualType T) { |
15970 | MarkReferencedDecls Marker(*this, Loc); |
15971 | Marker.TraverseType(T); |
15972 | } |
15973 | |
15974 | namespace { |
15975 | |
15976 | |
15977 | class EvaluatedExprMarker : public EvaluatedExprVisitor<EvaluatedExprMarker> { |
15978 | Sema &S; |
15979 | bool SkipLocalVariables; |
15980 | |
15981 | public: |
15982 | typedef EvaluatedExprVisitor<EvaluatedExprMarker> Inherited; |
15983 | |
15984 | EvaluatedExprMarker(Sema &S, bool SkipLocalVariables) |
15985 | : Inherited(S.Context), S(S), SkipLocalVariables(SkipLocalVariables) { } |
15986 | |
15987 | void VisitDeclRefExpr(DeclRefExpr *E) { |
15988 | |
15989 | if (SkipLocalVariables) { |
15990 | if (VarDecl *VD = dyn_cast<VarDecl>(E->getDecl())) |
15991 | if (VD->hasLocalStorage()) |
15992 | return; |
15993 | } |
15994 | |
15995 | S.MarkDeclRefReferenced(E); |
15996 | } |
15997 | |
15998 | void VisitMemberExpr(MemberExpr *E) { |
15999 | S.MarkMemberReferenced(E); |
16000 | Inherited::VisitMemberExpr(E); |
16001 | } |
16002 | |
16003 | void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) { |
16004 | S.MarkFunctionReferenced( |
16005 | E->getBeginLoc(), |
16006 | const_cast<CXXDestructorDecl *>(E->getTemporary()->getDestructor())); |
16007 | Visit(E->getSubExpr()); |
16008 | } |
16009 | |
16010 | void VisitCXXNewExpr(CXXNewExpr *E) { |
16011 | if (E->getOperatorNew()) |
16012 | S.MarkFunctionReferenced(E->getBeginLoc(), E->getOperatorNew()); |
16013 | if (E->getOperatorDelete()) |
16014 | S.MarkFunctionReferenced(E->getBeginLoc(), E->getOperatorDelete()); |
16015 | Inherited::VisitCXXNewExpr(E); |
16016 | } |
16017 | |
16018 | void VisitCXXDeleteExpr(CXXDeleteExpr *E) { |
16019 | if (E->getOperatorDelete()) |
16020 | S.MarkFunctionReferenced(E->getBeginLoc(), E->getOperatorDelete()); |
16021 | QualType Destroyed = S.Context.getBaseElementType(E->getDestroyedType()); |
16022 | if (const RecordType *DestroyedRec = Destroyed->getAs<RecordType>()) { |
16023 | CXXRecordDecl *Record = cast<CXXRecordDecl>(DestroyedRec->getDecl()); |
16024 | S.MarkFunctionReferenced(E->getBeginLoc(), S.LookupDestructor(Record)); |
16025 | } |
16026 | |
16027 | Inherited::VisitCXXDeleteExpr(E); |
16028 | } |
16029 | |
16030 | void VisitCXXConstructExpr(CXXConstructExpr *E) { |
16031 | S.MarkFunctionReferenced(E->getBeginLoc(), E->getConstructor()); |
16032 | Inherited::VisitCXXConstructExpr(E); |
16033 | } |
16034 | |
16035 | void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) { |
16036 | Visit(E->getExpr()); |
16037 | } |
16038 | |
16039 | void VisitImplicitCastExpr(ImplicitCastExpr *E) { |
16040 | Inherited::VisitImplicitCastExpr(E); |
16041 | |
16042 | if (E->getCastKind() == CK_LValueToRValue) |
16043 | S.UpdateMarkingForLValueToRValue(E->getSubExpr()); |
16044 | } |
16045 | }; |
16046 | } |
16047 | |
16048 | |
16049 | |
16050 | |
16051 | |
16052 | |
16053 | void Sema::MarkDeclarationsReferencedInExpr(Expr *E, |
16054 | bool SkipLocalVariables) { |
16055 | EvaluatedExprMarker(*this, SkipLocalVariables).Visit(E); |
16056 | } |
16057 | |
16058 | |
16059 | |
16060 | |
16061 | |
16062 | |
16063 | |
16064 | |
16065 | |
16066 | |
16067 | |
16068 | |
16069 | |
16070 | |
16071 | |
16072 | |
16073 | |
16074 | bool Sema::DiagRuntimeBehavior(SourceLocation Loc, const Stmt *Statement, |
16075 | const PartialDiagnostic &PD) { |
16076 | switch (ExprEvalContexts.back().Context) { |
16077 | case ExpressionEvaluationContext::Unevaluated: |
16078 | case ExpressionEvaluationContext::UnevaluatedList: |
16079 | case ExpressionEvaluationContext::UnevaluatedAbstract: |
16080 | case ExpressionEvaluationContext::DiscardedStatement: |
16081 | |
16082 | break; |
16083 | |
16084 | case ExpressionEvaluationContext::ConstantEvaluated: |
16085 | |
16086 | break; |
16087 | |
16088 | case ExpressionEvaluationContext::PotentiallyEvaluated: |
16089 | case ExpressionEvaluationContext::PotentiallyEvaluatedIfUsed: |
16090 | if (Statement && getCurFunctionOrMethodDecl()) { |
16091 | FunctionScopes.back()->PossiblyUnreachableDiags. |
16092 | push_back(sema::PossiblyUnreachableDiag(PD, Loc, Statement)); |
16093 | return true; |
16094 | } |
16095 | |
16096 | |
16097 | |
16098 | |
16099 | |
16100 | |
16101 | if (auto *VD = dyn_cast_or_null<VarDecl>( |
16102 | ExprEvalContexts.back().ManglingContextDecl)) { |
16103 | if (VD->isConstexpr() || |
16104 | (VD->isStaticDataMember() && VD->isFirstDecl() && !VD->isInline())) |
16105 | break; |
16106 | |
16107 | |
16108 | } |
16109 | |
16110 | Diag(Loc, PD); |
16111 | return true; |
16112 | } |
16113 | |
16114 | return false; |
16115 | } |
16116 | |
16117 | bool Sema::CheckCallReturnType(QualType ReturnType, SourceLocation Loc, |
16118 | CallExpr *CE, FunctionDecl *FD) { |
16119 | if (ReturnType->isVoidType() || !ReturnType->isIncompleteType()) |
16120 | return false; |
16121 | |
16122 | |
16123 | |
16124 | if (ExprEvalContexts.back().ExprContext == |
16125 | ExpressionEvaluationContextRecord::EK_Decltype) { |
16126 | ExprEvalContexts.back().DelayedDecltypeCalls.push_back(CE); |
16127 | return false; |
16128 | } |
16129 | |
16130 | class CallReturnIncompleteDiagnoser : public TypeDiagnoser { |
16131 | FunctionDecl *FD; |
16132 | CallExpr *CE; |
16133 | |
16134 | public: |
16135 | CallReturnIncompleteDiagnoser(FunctionDecl *FD, CallExpr *CE) |
16136 | : FD(FD), CE(CE) { } |
16137 | |
16138 | void diagnose(Sema &S, SourceLocation Loc, QualType T) override { |
16139 | if (!FD) { |
16140 | S.Diag(Loc, diag::err_call_incomplete_return) |
16141 | << T << CE->getSourceRange(); |
16142 | return; |
16143 | } |
16144 | |
16145 | S.Diag(Loc, diag::err_call_function_incomplete_return) |
16146 | << CE->getSourceRange() << FD->getDeclName() << T; |
16147 | S.Diag(FD->getLocation(), diag::note_entity_declared_at) |
16148 | << FD->getDeclName(); |
16149 | } |
16150 | } Diagnoser(FD, CE); |
16151 | |
16152 | if (RequireCompleteType(Loc, ReturnType, Diagnoser)) |
16153 | return true; |
16154 | |
16155 | return false; |
16156 | } |
16157 | |
16158 | |
16159 | |
16160 | void Sema::DiagnoseAssignmentAsCondition(Expr *E) { |
16161 | SourceLocation Loc; |
16162 | |
16163 | unsigned diagnostic = diag::warn_condition_is_assignment; |
16164 | bool IsOrAssign = false; |
16165 | |
16166 | if (BinaryOperator *Op = dyn_cast<BinaryOperator>(E)) { |
16167 | if (Op->getOpcode() != BO_Assign && Op->getOpcode() != BO_OrAssign) |
16168 | return; |
16169 | |
16170 | IsOrAssign = Op->getOpcode() == BO_OrAssign; |
16171 | |
16172 | |
16173 | if (ObjCMessageExpr *ME |
16174 | = dyn_cast<ObjCMessageExpr>(Op->getRHS()->IgnoreParenCasts())) { |
16175 | Selector Sel = ME->getSelector(); |
16176 | |
16177 | |
16178 | if (isSelfExpr(Op->getLHS()) && ME->getMethodFamily() == OMF_init) |
16179 | diagnostic = diag::warn_condition_is_idiomatic_assignment; |
16180 | |
16181 | |
16182 | else if (Sel.isUnarySelector() && Sel.getNameForSlot(0) == "nextObject") |
16183 | diagnostic = diag::warn_condition_is_idiomatic_assignment; |
16184 | } |
16185 | |
16186 | Loc = Op->getOperatorLoc(); |
16187 | } else if (CXXOperatorCallExpr *Op = dyn_cast<CXXOperatorCallExpr>(E)) { |
16188 | if (Op->getOperator() != OO_Equal && Op->getOperator() != OO_PipeEqual) |
16189 | return; |
16190 | |
16191 | IsOrAssign = Op->getOperator() == OO_PipeEqual; |
16192 | Loc = Op->getOperatorLoc(); |
16193 | } else if (PseudoObjectExpr *POE = dyn_cast<PseudoObjectExpr>(E)) |
16194 | return DiagnoseAssignmentAsCondition(POE->getSyntacticForm()); |
16195 | else { |
16196 | |
16197 | return; |
16198 | } |
16199 | |
16200 | Diag(Loc, diagnostic) << E->getSourceRange(); |
16201 | |
16202 | SourceLocation Open = E->getBeginLoc(); |
16203 | SourceLocation Close = getLocForEndOfToken(E->getSourceRange().getEnd()); |
16204 | Diag(Loc, diag::note_condition_assign_silence) |
16205 | << FixItHint::CreateInsertion(Open, "(") |
16206 | << FixItHint::CreateInsertion(Close, ")"); |
16207 | |
16208 | if (IsOrAssign) |
16209 | Diag(Loc, diag::note_condition_or_assign_to_comparison) |
16210 | << FixItHint::CreateReplacement(Loc, "!="); |
16211 | else |
16212 | Diag(Loc, diag::note_condition_assign_to_comparison) |
16213 | << FixItHint::CreateReplacement(Loc, "=="); |
16214 | } |
16215 | |
16216 | |
16217 | |
16218 | void Sema::(ParenExpr *ParenE) { |
16219 | |
16220 | SourceLocation parenLoc = ParenE->getBeginLoc(); |
16221 | if (parenLoc.isInvalid() || parenLoc.isMacroID()) |
16222 | return; |
16223 | |
16224 | if (ParenE->isTypeDependent()) |
16225 | return; |
16226 | |
16227 | Expr *E = ParenE->IgnoreParens(); |
16228 | |
16229 | if (BinaryOperator *opE = dyn_cast<BinaryOperator>(E)) |
16230 | if (opE->getOpcode() == BO_EQ && |
16231 | opE->getLHS()->IgnoreParenImpCasts()->isModifiableLvalue(Context) |
16232 | == Expr::MLV_Valid) { |
16233 | SourceLocation Loc = opE->getOperatorLoc(); |
16234 | |
16235 | Diag(Loc, diag::warn_equality_with_extra_parens) << E->getSourceRange(); |
16236 | SourceRange ParenERange = ParenE->getSourceRange(); |
16237 | Diag(Loc, diag::note_equality_comparison_silence) |
16238 | << FixItHint::CreateRemoval(ParenERange.getBegin()) |
16239 | << FixItHint::CreateRemoval(ParenERange.getEnd()); |
16240 | Diag(Loc, diag::note_equality_comparison_to_assign) |
16241 | << FixItHint::CreateReplacement(Loc, "="); |
16242 | } |
16243 | } |
16244 | |
16245 | ExprResult Sema::CheckBooleanCondition(SourceLocation Loc, Expr *E, |
16246 | bool IsConstexpr) { |
16247 | DiagnoseAssignmentAsCondition(E); |
16248 | if (ParenExpr *parenE = dyn_cast<ParenExpr>(E)) |
16249 | DiagnoseEqualityWithExtraParens(parenE); |
16250 | |
16251 | ExprResult result = CheckPlaceholderExpr(E); |
16252 | if (result.isInvalid()) return ExprError(); |
16253 | E = result.get(); |
16254 | |
16255 | if (!E->isTypeDependent()) { |
16256 | if (getLangOpts().CPlusPlus) |
16257 | return CheckCXXBooleanCondition(E, IsConstexpr); |
16258 | |
16259 | ExprResult ERes = DefaultFunctionArrayLvalueConversion(E); |
16260 | if (ERes.isInvalid()) |
16261 | return ExprError(); |
16262 | E = ERes.get(); |
16263 | |
16264 | QualType T = E->getType(); |
16265 | if (!T->isScalarType()) { |
16266 | Diag(Loc, diag::err_typecheck_statement_requires_scalar) |
16267 | << T << E->getSourceRange(); |
16268 | return ExprError(); |
16269 | } |
16270 | CheckBoolLikeConversion(E, Loc); |
16271 | } |
16272 | |
16273 | return E; |
16274 | } |
16275 | |
16276 | Sema::ConditionResult Sema::ActOnCondition(Scope *S, SourceLocation Loc, |
16277 | Expr *SubExpr, ConditionKind CK) { |
16278 | |
16279 | if (!SubExpr) |
16280 | return ConditionResult(); |
16281 | |
16282 | ExprResult Cond; |
16283 | switch (CK) { |
16284 | case ConditionKind::Boolean: |
16285 | Cond = CheckBooleanCondition(Loc, SubExpr); |
16286 | break; |
16287 | |
16288 | case ConditionKind::ConstexprIf: |
16289 | Cond = CheckBooleanCondition(Loc, SubExpr, true); |
16290 | break; |
16291 | |
16292 | case ConditionKind::Switch: |
16293 | Cond = CheckSwitchCondition(Loc, SubExpr); |
16294 | break; |
16295 | } |
16296 | if (Cond.isInvalid()) |
16297 | return ConditionError(); |
16298 | |
16299 | |
16300 | FullExprArg FullExpr = MakeFullExpr(Cond.get(), Loc); |
16301 | if (!FullExpr.get()) |
16302 | return ConditionError(); |
16303 | |
16304 | return ConditionResult(*this, nullptr, FullExpr, |
16305 | CK == ConditionKind::ConstexprIf); |
16306 | } |
16307 | |
16308 | namespace { |
16309 | |
16310 | |
16311 | struct RebuildUnknownAnyFunction |
16312 | : StmtVisitor<RebuildUnknownAnyFunction, ExprResult> { |
16313 | |
16314 | Sema &S; |
16315 | |
16316 | RebuildUnknownAnyFunction(Sema &S) : S(S) {} |
16317 | |
16318 | ExprResult VisitStmt(Stmt *S) { |
16319 | llvm_unreachable("unexpected statement!"); |
16320 | } |
16321 | |
16322 | ExprResult VisitExpr(Expr *E) { |
16323 | S.Diag(E->getExprLoc(), diag::err_unsupported_unknown_any_call) |
16324 | << E->getSourceRange(); |
16325 | return ExprError(); |
16326 | } |
16327 | |
16328 | |
16329 | |
16330 | template <class T> ExprResult rebuildSugarExpr(T *E) { |
16331 | ExprResult SubResult = Visit(E->getSubExpr()); |
16332 | if (SubResult.isInvalid()) return ExprError(); |
16333 | |
16334 | Expr *SubExpr = SubResult.get(); |
16335 | E->setSubExpr(SubExpr); |
16336 | E->setType(SubExpr->getType()); |
16337 | E->setValueKind(SubExpr->getValueKind()); |
16338 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16338, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16339 | return E; |
16340 | } |
16341 | |
16342 | ExprResult VisitParenExpr(ParenExpr *E) { |
16343 | return rebuildSugarExpr(E); |
16344 | } |
16345 | |
16346 | ExprResult VisitUnaryExtension(UnaryOperator *E) { |
16347 | return rebuildSugarExpr(E); |
16348 | } |
16349 | |
16350 | ExprResult VisitUnaryAddrOf(UnaryOperator *E) { |
16351 | ExprResult SubResult = Visit(E->getSubExpr()); |
16352 | if (SubResult.isInvalid()) return ExprError(); |
16353 | |
16354 | Expr *SubExpr = SubResult.get(); |
16355 | E->setSubExpr(SubExpr); |
16356 | E->setType(S.Context.getPointerType(SubExpr->getType())); |
16357 | getValueKind() == VK_RValue", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16357, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getValueKind() == VK_RValue); |
16358 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16358, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16359 | return E; |
16360 | } |
16361 | |
16362 | ExprResult resolveDecl(Expr *E, ValueDecl *VD) { |
16363 | if (!isa<FunctionDecl>(VD)) return VisitExpr(E); |
16364 | |
16365 | E->setType(VD->getType()); |
16366 | |
16367 | getValueKind() == VK_RValue", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16367, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getValueKind() == VK_RValue); |
16368 | if (S.getLangOpts().CPlusPlus && |
16369 | !(isa<CXXMethodDecl>(VD) && |
16370 | cast<CXXMethodDecl>(VD)->isInstance())) |
16371 | E->setValueKind(VK_LValue); |
16372 | |
16373 | return E; |
16374 | } |
16375 | |
16376 | ExprResult VisitMemberExpr(MemberExpr *E) { |
16377 | return resolveDecl(E, E->getMemberDecl()); |
16378 | } |
16379 | |
16380 | ExprResult VisitDeclRefExpr(DeclRefExpr *E) { |
16381 | return resolveDecl(E, E->getDecl()); |
16382 | } |
16383 | }; |
16384 | } |
16385 | |
16386 | |
16387 | |
16388 | static ExprResult rebuildUnknownAnyFunction(Sema &S, Expr *FunctionExpr) { |
16389 | ExprResult Result = RebuildUnknownAnyFunction(S).Visit(FunctionExpr); |
16390 | if (Result.isInvalid()) return ExprError(); |
16391 | return S.DefaultFunctionArrayConversion(Result.get()); |
16392 | } |
16393 | |
16394 | namespace { |
16395 | |
16396 | |
16397 | |
16398 | |
16399 | struct RebuildUnknownAnyExpr |
16400 | : StmtVisitor<RebuildUnknownAnyExpr, ExprResult> { |
16401 | |
16402 | Sema &S; |
16403 | |
16404 | |
16405 | QualType DestType; |
16406 | |
16407 | RebuildUnknownAnyExpr(Sema &S, QualType CastType) |
16408 | : S(S), DestType(CastType) {} |
16409 | |
16410 | ExprResult VisitStmt(Stmt *S) { |
16411 | llvm_unreachable("unexpected statement!"); |
16412 | } |
16413 | |
16414 | ExprResult VisitExpr(Expr *E) { |
16415 | S.Diag(E->getExprLoc(), diag::err_unsupported_unknown_any_expr) |
16416 | << E->getSourceRange(); |
16417 | return ExprError(); |
16418 | } |
16419 | |
16420 | ExprResult VisitCallExpr(CallExpr *E); |
16421 | ExprResult VisitObjCMessageExpr(ObjCMessageExpr *E); |
16422 | |
16423 | |
16424 | |
16425 | template <class T> ExprResult rebuildSugarExpr(T *E) { |
16426 | ExprResult SubResult = Visit(E->getSubExpr()); |
16427 | if (SubResult.isInvalid()) return ExprError(); |
16428 | Expr *SubExpr = SubResult.get(); |
16429 | E->setSubExpr(SubExpr); |
16430 | E->setType(SubExpr->getType()); |
16431 | E->setValueKind(SubExpr->getValueKind()); |
16432 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16432, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16433 | return E; |
16434 | } |
16435 | |
16436 | ExprResult VisitParenExpr(ParenExpr *E) { |
16437 | return rebuildSugarExpr(E); |
16438 | } |
16439 | |
16440 | ExprResult VisitUnaryExtension(UnaryOperator *E) { |
16441 | return rebuildSugarExpr(E); |
16442 | } |
16443 | |
16444 | ExprResult VisitUnaryAddrOf(UnaryOperator *E) { |
16445 | const PointerType *Ptr = DestType->getAs<PointerType>(); |
16446 | if (!Ptr) { |
16447 | S.Diag(E->getOperatorLoc(), diag::err_unknown_any_addrof) |
16448 | << E->getSourceRange(); |
16449 | return ExprError(); |
16450 | } |
16451 | |
16452 | if (isa<CallExpr>(E->getSubExpr())) { |
16453 | S.Diag(E->getOperatorLoc(), diag::err_unknown_any_addrof_call) |
16454 | << E->getSourceRange(); |
16455 | return ExprError(); |
16456 | } |
16457 | |
16458 | getValueKind() == VK_RValue", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16458, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getValueKind() == VK_RValue); |
16459 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16459, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16460 | E->setType(DestType); |
16461 | |
16462 | |
16463 | DestType = Ptr->getPointeeType(); |
16464 | ExprResult SubResult = Visit(E->getSubExpr()); |
16465 | if (SubResult.isInvalid()) return ExprError(); |
16466 | E->setSubExpr(SubResult.get()); |
16467 | return E; |
16468 | } |
16469 | |
16470 | ExprResult VisitImplicitCastExpr(ImplicitCastExpr *E); |
16471 | |
16472 | ExprResult resolveDecl(Expr *E, ValueDecl *VD); |
16473 | |
16474 | ExprResult VisitMemberExpr(MemberExpr *E) { |
16475 | return resolveDecl(E, E->getMemberDecl()); |
16476 | } |
16477 | |
16478 | ExprResult VisitDeclRefExpr(DeclRefExpr *E) { |
16479 | return resolveDecl(E, E->getDecl()); |
16480 | } |
16481 | }; |
16482 | } |
16483 | |
16484 | |
16485 | ExprResult RebuildUnknownAnyExpr::VisitCallExpr(CallExpr *E) { |
16486 | Expr *CalleeExpr = E->getCallee(); |
16487 | |
16488 | enum FnKind { |
16489 | FK_MemberFunction, |
16490 | FK_FunctionPointer, |
16491 | FK_BlockPointer |
16492 | }; |
16493 | |
16494 | FnKind Kind; |
16495 | QualType CalleeType = CalleeExpr->getType(); |
16496 | if (CalleeType == S.Context.BoundMemberTy) { |
16497 | (E) || isa(E)", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16497, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isa<CXXMemberCallExpr>(E) || isa<CXXOperatorCallExpr>(E)); |
16498 | Kind = FK_MemberFunction; |
16499 | CalleeType = Expr::findBoundMemberType(CalleeExpr); |
16500 | } else if (const PointerType *Ptr = CalleeType->getAs<PointerType>()) { |
16501 | CalleeType = Ptr->getPointeeType(); |
16502 | Kind = FK_FunctionPointer; |
16503 | } else { |
16504 | CalleeType = CalleeType->castAs<BlockPointerType>()->getPointeeType(); |
16505 | Kind = FK_BlockPointer; |
16506 | } |
16507 | const FunctionType *FnType = CalleeType->castAs<FunctionType>(); |
16508 | |
16509 | |
16510 | if (DestType->isArrayType() || DestType->isFunctionType()) { |
16511 | unsigned diagID = diag::err_func_returning_array_function; |
16512 | if (Kind == FK_BlockPointer) |
16513 | diagID = diag::err_block_returning_array_function; |
16514 | |
16515 | S.Diag(E->getExprLoc(), diagID) |
16516 | << DestType->isFunctionType() << DestType; |
16517 | return ExprError(); |
16518 | } |
16519 | |
16520 | |
16521 | E->setType(DestType.getNonLValueExprType(S.Context)); |
16522 | E->setValueKind(Expr::getValueKindForType(DestType)); |
16523 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16523, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16524 | |
16525 | |
16526 | const FunctionProtoType *Proto = dyn_cast<FunctionProtoType>(FnType); |
16527 | if (Proto) { |
16528 | |
16529 | |
16530 | |
16531 | |
16532 | |
16533 | |
16534 | |
16535 | |
16536 | |
16537 | |
16538 | |
16539 | |
16540 | |
16541 | |
16542 | |
16543 | |
16544 | |
16545 | |
16546 | |
16547 | ArrayRef<QualType> ParamTypes = Proto->getParamTypes(); |
16548 | SmallVector<QualType, 8> ArgTypes; |
16549 | if (ParamTypes.empty() && Proto->isVariadic()) { |
16550 | ArgTypes.reserve(E->getNumArgs()); |
16551 | for (unsigned i = 0, e = E->getNumArgs(); i != e; ++i) { |
16552 | Expr *Arg = E->getArg(i); |
16553 | QualType ArgType = Arg->getType(); |
16554 | if (E->isLValue()) { |
16555 | ArgType = S.Context.getLValueReferenceType(ArgType); |
16556 | } else if (E->isXValue()) { |
16557 | ArgType = S.Context.getRValueReferenceType(ArgType); |
16558 | } |
16559 | ArgTypes.push_back(ArgType); |
16560 | } |
16561 | ParamTypes = ArgTypes; |
16562 | } |
16563 | DestType = S.Context.getFunctionType(DestType, ParamTypes, |
16564 | Proto->getExtProtoInfo()); |
16565 | } else { |
16566 | DestType = S.Context.getFunctionNoProtoType(DestType, |
16567 | FnType->getExtInfo()); |
16568 | } |
16569 | |
16570 | |
16571 | switch (Kind) { |
16572 | case FK_MemberFunction: |
16573 | |
16574 | break; |
16575 | |
16576 | case FK_FunctionPointer: |
16577 | DestType = S.Context.getPointerType(DestType); |
16578 | break; |
16579 | |
16580 | case FK_BlockPointer: |
16581 | DestType = S.Context.getBlockPointerType(DestType); |
16582 | break; |
16583 | } |
16584 | |
16585 | |
16586 | ExprResult CalleeResult = Visit(CalleeExpr); |
16587 | if (!CalleeResult.isUsable()) return ExprError(); |
16588 | E->setCallee(CalleeResult.get()); |
16589 | |
16590 | |
16591 | return S.MaybeBindToTemporary(E); |
16592 | } |
16593 | |
16594 | ExprResult RebuildUnknownAnyExpr::VisitObjCMessageExpr(ObjCMessageExpr *E) { |
16595 | |
16596 | if (DestType->isArrayType() || DestType->isFunctionType()) { |
16597 | S.Diag(E->getExprLoc(), diag::err_func_returning_array_function) |
16598 | << DestType->isFunctionType() << DestType; |
16599 | return ExprError(); |
16600 | } |
16601 | |
16602 | |
16603 | if (ObjCMethodDecl *Method = E->getMethodDecl()) { |
16604 | getReturnType() == S.Context.UnknownAnyTy", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16604, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Method->getReturnType() == S.Context.UnknownAnyTy); |
16605 | Method->setReturnType(DestType); |
16606 | } |
16607 | |
16608 | |
16609 | E->setType(DestType.getNonReferenceType()); |
16610 | E->setValueKind(Expr::getValueKindForType(DestType)); |
16611 | |
16612 | return S.MaybeBindToTemporary(E); |
16613 | } |
16614 | |
16615 | ExprResult RebuildUnknownAnyExpr::VisitImplicitCastExpr(ImplicitCastExpr *E) { |
16616 | |
16617 | if (E->getCastKind() == CK_FunctionToPointerDecay) { |
16618 | getValueKind() == VK_RValue", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16618, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getValueKind() == VK_RValue); |
16619 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16619, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16620 | |
16621 | E->setType(DestType); |
16622 | |
16623 | |
16624 | DestType = DestType->castAs<PointerType>()->getPointeeType(); |
16625 | |
16626 | ExprResult Result = Visit(E->getSubExpr()); |
16627 | if (!Result.isUsable()) return ExprError(); |
16628 | |
16629 | E->setSubExpr(Result.get()); |
16630 | return E; |
16631 | } else if (E->getCastKind() == CK_LValueToRValue) { |
16632 | getValueKind() == VK_RValue", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16632, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getValueKind() == VK_RValue); |
16633 | getObjectKind() == OK_Ordinary", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16633, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(E->getObjectKind() == OK_Ordinary); |
16634 | |
16635 | (E->getType())", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16635, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isa<BlockPointerType>(E->getType())); |
16636 | |
16637 | E->setType(DestType); |
16638 | |
16639 | |
16640 | DestType = S.Context.getLValueReferenceType(DestType); |
16641 | |
16642 | ExprResult Result = Visit(E->getSubExpr()); |
16643 | if (!Result.isUsable()) return ExprError(); |
16644 | |
16645 | E->setSubExpr(Result.get()); |
16646 | return E; |
16647 | } else { |
16648 | llvm_unreachable("Unhandled cast type!"); |
16649 | } |
16650 | } |
16651 | |
16652 | ExprResult RebuildUnknownAnyExpr::resolveDecl(Expr *E, ValueDecl *VD) { |
16653 | ExprValueKind ValueKind = VK_LValue; |
16654 | QualType Type = DestType; |
16655 | |
16656 | |
16657 | |
16658 | |
16659 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(VD)) { |
16660 | if (const PointerType *Ptr = Type->getAs<PointerType>()) { |
16661 | DestType = Ptr->getPointeeType(); |
16662 | ExprResult Result = resolveDecl(E, VD); |
16663 | if (Result.isInvalid()) return ExprError(); |
16664 | return S.ImpCastExprToType(Result.get(), Type, |
16665 | CK_FunctionToPointerDecay, VK_RValue); |
16666 | } |
16667 | |
16668 | if (!Type->isFunctionType()) { |
16669 | S.Diag(E->getExprLoc(), diag::err_unknown_any_function) |
16670 | << VD << E->getSourceRange(); |
16671 | return ExprError(); |
16672 | } |
16673 | if (const FunctionProtoType *FT = Type->getAs<FunctionProtoType>()) { |
16674 | |
16675 | |
16676 | |
16677 | QualType FDT = FD->getType(); |
16678 | const FunctionType *FnType = FDT->castAs<FunctionType>(); |
16679 | const FunctionProtoType *Proto = dyn_cast_or_null<FunctionProtoType>(FnType); |
16680 | DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E); |
16681 | if (DRE && Proto && Proto->getParamTypes().empty() && Proto->isVariadic()) { |
16682 | SourceLocation Loc = FD->getLocation(); |
16683 | FunctionDecl *NewFD = FunctionDecl::Create(S.Context, |
16684 | FD->getDeclContext(), |
16685 | Loc, Loc, FD->getNameInfo().getName(), |
16686 | DestType, FD->getTypeSourceInfo(), |
16687 | SC_None, false, |
16688 | FD->hasPrototype(), |
16689 | false); |
16690 | |
16691 | if (FD->getQualifier()) |
16692 | NewFD->setQualifierInfo(FD->getQualifierLoc()); |
16693 | |
16694 | SmallVector<ParmVarDecl*, 16> Params; |
16695 | for (const auto &AI : FT->param_types()) { |
16696 | ParmVarDecl *Param = |
16697 | S.BuildParmVarDeclForTypedef(FD, Loc, AI); |
16698 | Param->setScopeInfo(0, Params.size()); |
16699 | Params.push_back(Param); |
16700 | } |
16701 | NewFD->setParams(Params); |
16702 | DRE->setDecl(NewFD); |
16703 | VD = DRE->getDecl(); |
16704 | } |
16705 | } |
16706 | |
16707 | if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) |
16708 | if (MD->isInstance()) { |
16709 | ValueKind = VK_RValue; |
16710 | Type = S.Context.BoundMemberTy; |
16711 | } |
16712 | |
16713 | |
16714 | if (!S.getLangOpts().CPlusPlus) |
16715 | ValueKind = VK_RValue; |
16716 | |
16717 | |
16718 | } else if (isa<VarDecl>(VD)) { |
16719 | if (const ReferenceType *RefTy = Type->getAs<ReferenceType>()) { |
16720 | Type = RefTy->getPointeeType(); |
16721 | } else if (Type->isFunctionType()) { |
16722 | S.Diag(E->getExprLoc(), diag::err_unknown_any_var_function_type) |
16723 | << VD << E->getSourceRange(); |
16724 | return ExprError(); |
16725 | } |
16726 | |
16727 | |
16728 | } else { |
16729 | S.Diag(E->getExprLoc(), diag::err_unsupported_unknown_any_decl) |
16730 | << VD << E->getSourceRange(); |
16731 | return ExprError(); |
16732 | } |
16733 | |
16734 | |
16735 | |
16736 | VD->setType(DestType); |
16737 | E->setType(Type); |
16738 | E->setValueKind(ValueKind); |
16739 | return E; |
16740 | } |
16741 | |
16742 | |
16743 | |
16744 | ExprResult Sema::checkUnknownAnyCast(SourceRange TypeRange, QualType CastType, |
16745 | Expr *CastExpr, CastKind &CastKind, |
16746 | ExprValueKind &VK, CXXCastPath &Path) { |
16747 | |
16748 | if (!CastType->isVoidType() && |
16749 | RequireCompleteType(TypeRange.getBegin(), CastType, |
16750 | diag::err_typecheck_cast_to_incomplete)) |
16751 | return ExprError(); |
16752 | |
16753 | |
16754 | ExprResult result = RebuildUnknownAnyExpr(*this, CastType).Visit(CastExpr); |
16755 | if (!result.isUsable()) return ExprError(); |
16756 | |
16757 | CastExpr = result.get(); |
16758 | VK = CastExpr->getValueKind(); |
16759 | CastKind = CK_NoOp; |
16760 | |
16761 | return CastExpr; |
16762 | } |
16763 | |
16764 | ExprResult Sema::forceUnknownAnyToType(Expr *E, QualType ToType) { |
16765 | return RebuildUnknownAnyExpr(*this, ToType).Visit(E); |
16766 | } |
16767 | |
16768 | ExprResult Sema::checkUnknownAnyArg(SourceLocation callLoc, |
16769 | Expr *arg, QualType ¶mType) { |
16770 | |
16771 | |
16772 | ExplicitCastExpr *castArg = dyn_cast<ExplicitCastExpr>(arg->IgnoreParens()); |
16773 | if (!castArg) { |
16774 | ExprResult result = DefaultArgumentPromotion(arg); |
16775 | if (result.isInvalid()) return ExprError(); |
16776 | paramType = result.get()->getType(); |
16777 | return result; |
16778 | } |
16779 | |
16780 | |
16781 | hasPlaceholderType()", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16781, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(!arg->hasPlaceholderType()); |
16782 | paramType = castArg->getTypeAsWritten(); |
16783 | |
16784 | |
16785 | InitializedEntity entity = |
16786 | InitializedEntity::InitializeParameter(Context, paramType, |
16787 | false); |
16788 | return PerformCopyInitialization(entity, callLoc, arg); |
16789 | } |
16790 | |
16791 | static ExprResult diagnoseUnknownAnyExpr(Sema &S, Expr *E) { |
16792 | Expr *orig = E; |
16793 | unsigned diagID = diag::err_uncasted_use_of_unknown_any; |
16794 | while (true) { |
16795 | E = E->IgnoreParenImpCasts(); |
16796 | if (CallExpr *call = dyn_cast<CallExpr>(E)) { |
16797 | E = call->getCallee(); |
16798 | diagID = diag::err_uncasted_call_of_unknown_any; |
16799 | } else { |
16800 | break; |
16801 | } |
16802 | } |
16803 | |
16804 | SourceLocation loc; |
16805 | NamedDecl *d; |
16806 | if (DeclRefExpr *ref = dyn_cast<DeclRefExpr>(E)) { |
16807 | loc = ref->getLocation(); |
16808 | d = ref->getDecl(); |
16809 | } else if (MemberExpr *mem = dyn_cast<MemberExpr>(E)) { |
16810 | loc = mem->getMemberLoc(); |
16811 | d = mem->getMemberDecl(); |
16812 | } else if (ObjCMessageExpr *msg = dyn_cast<ObjCMessageExpr>(E)) { |
16813 | diagID = diag::err_uncasted_call_of_unknown_any; |
16814 | loc = msg->getSelectorStartLoc(); |
16815 | d = msg->getMethodDecl(); |
16816 | if (!d) { |
16817 | S.Diag(loc, diag::err_uncasted_send_to_unknown_any_method) |
16818 | << static_cast<unsigned>(msg->isClassMessage()) << msg->getSelector() |
16819 | << orig->getSourceRange(); |
16820 | return ExprError(); |
16821 | } |
16822 | } else { |
16823 | S.Diag(E->getExprLoc(), diag::err_unsupported_unknown_any_expr) |
16824 | << E->getSourceRange(); |
16825 | return ExprError(); |
16826 | } |
16827 | |
16828 | S.Diag(loc, diagID) << d << orig->getSourceRange(); |
16829 | |
16830 | |
16831 | return ExprError(); |
16832 | } |
16833 | |
16834 | |
16835 | |
16836 | ExprResult Sema::CheckPlaceholderExpr(Expr *E) { |
16837 | if (!getLangOpts().CPlusPlus) { |
16838 | |
16839 | |
16840 | |
16841 | ExprResult Result = CorrectDelayedTyposInExpr(E); |
16842 | if (!Result.isUsable()) return ExprError(); |
16843 | E = Result.get(); |
16844 | } |
16845 | |
16846 | const BuiltinType *placeholderType = E->getType()->getAsPlaceholderType(); |
16847 | if (!placeholderType) return E; |
16848 | |
16849 | switch (placeholderType->getKind()) { |
16850 | |
16851 | |
16852 | case BuiltinType::Overload: { |
16853 | |
16854 | |
16855 | ExprResult Result = E; |
16856 | if (ResolveAndFixSingleFunctionTemplateSpecialization(Result, false)) |
16857 | return Result; |
16858 | |
16859 | |
16860 | |
16861 | Result = E; |
16862 | if (resolveAndFixAddressOfOnlyViableOverloadCandidate(Result)) |
16863 | return Result; |
16864 | |
16865 | |
16866 | tryToRecoverWithCall(Result, PDiag(diag::err_ovl_unresolvable), |
16867 | true); |
16868 | return Result; |
16869 | } |
16870 | |
16871 | |
16872 | case BuiltinType::BoundMember: { |
16873 | ExprResult result = E; |
16874 | const Expr *BME = E->IgnoreParens(); |
16875 | PartialDiagnostic PD = PDiag(diag::err_bound_member_function); |
16876 | |
16877 | if (isa<CXXPseudoDestructorExpr>(BME)) { |
16878 | PD = PDiag(diag::err_dtor_expr_without_call) << 1; |
16879 | } else if (const auto *ME = dyn_cast<MemberExpr>(BME)) { |
16880 | if (ME->getMemberNameInfo().getName().getNameKind() == |
16881 | DeclarationName::CXXDestructorName) |
16882 | PD = PDiag(diag::err_dtor_expr_without_call) << 0; |
16883 | } |
16884 | tryToRecoverWithCall(result, PD, |
16885 | true); |
16886 | return result; |
16887 | } |
16888 | |
16889 | |
16890 | case BuiltinType::ARCUnbridgedCast: { |
16891 | Expr *realCast = stripARCUnbridgedCast(E); |
16892 | diagnoseARCUnbridgedCast(realCast); |
16893 | return realCast; |
16894 | } |
16895 | |
16896 | |
16897 | case BuiltinType::UnknownAny: |
16898 | return diagnoseUnknownAnyExpr(*this, E); |
16899 | |
16900 | |
16901 | case BuiltinType::PseudoObject: |
16902 | return checkPseudoObjectRValue(E); |
16903 | |
16904 | case BuiltinType::BuiltinFn: { |
16905 | |
16906 | auto *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParenImpCasts()); |
16907 | if (DRE) { |
16908 | auto *FD = cast<FunctionDecl>(DRE->getDecl()); |
16909 | if (FD->getBuiltinID() == Builtin::BI__noop) { |
16910 | E = ImpCastExprToType(E, Context.getPointerType(FD->getType()), |
16911 | CK_BuiltinFnToFnPtr) |
16912 | .get(); |
16913 | return CallExpr::Create(Context, E, {}, Context.IntTy, |
16914 | VK_RValue, SourceLocation()); |
16915 | } |
16916 | } |
16917 | |
16918 | Diag(E->getBeginLoc(), diag::err_builtin_fn_use); |
16919 | return ExprError(); |
16920 | } |
16921 | |
16922 | |
16923 | case BuiltinType::OMPArraySection: |
16924 | Diag(E->getBeginLoc(), diag::err_omp_array_section_use); |
16925 | return ExprError(); |
16926 | |
16927 | |
16928 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
16929 | case BuiltinType::Id: |
16930 | #include "clang/Basic/OpenCLImageTypes.def" |
16931 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
16932 | case BuiltinType::Id: |
16933 | #include "clang/Basic/OpenCLExtensionTypes.def" |
16934 | #define BUILTIN_TYPE(Id, SingletonId) case BuiltinType::Id: |
16935 | #define PLACEHOLDER_TYPE(Id, SingletonId) |
16936 | #include "clang/AST/BuiltinTypes.def" |
16937 | break; |
16938 | } |
16939 | |
16940 | llvm_unreachable("invalid placeholder type!"); |
16941 | } |
16942 | |
16943 | bool Sema::CheckCaseExpression(Expr *E) { |
16944 | if (E->isTypeDependent()) |
16945 | return true; |
16946 | if (E->isValueDependent() || E->isIntegerConstantExpr(Context)) |
16947 | return E->getType()->isIntegralOrEnumerationType(); |
16948 | return false; |
16949 | } |
16950 | |
16951 | |
16952 | ExprResult |
16953 | Sema::ActOnObjCBoolLiteral(SourceLocation OpLoc, tok::TokenKind Kind) { |
16954 | (0) . __assert_fail ("(Kind == tok..kw___objc_yes || Kind == tok..kw___objc_no) && \"Unknown Objective-C Boolean value!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16955, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((Kind == tok::kw___objc_yes || Kind == tok::kw___objc_no) && |
16955 | (0) . __assert_fail ("(Kind == tok..kw___objc_yes || Kind == tok..kw___objc_no) && \"Unknown Objective-C Boolean value!\"", "/home/seafit/code_projects/clang_source/clang/lib/Sema/SemaExpr.cpp", 16955, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Unknown Objective-C Boolean value!"); |
16956 | QualType BoolT = Context.ObjCBuiltinBoolTy; |
16957 | if (!Context.getBOOLDecl()) { |
16958 | LookupResult Result(*this, &Context.Idents.get("BOOL"), OpLoc, |
16959 | Sema::LookupOrdinaryName); |
16960 | if (LookupName(Result, getCurScope()) && Result.isSingleResult()) { |
16961 | NamedDecl *ND = Result.getFoundDecl(); |
16962 | if (TypedefDecl *TD = dyn_cast<TypedefDecl>(ND)) |
16963 | Context.setBOOLDecl(TD); |
16964 | } |
16965 | } |
16966 | if (Context.getBOOLDecl()) |
16967 | BoolT = Context.getBOOLType(); |
16968 | return new (Context) |
16969 | ObjCBoolLiteralExpr(Kind == tok::kw___objc_yes, BoolT, OpLoc); |
16970 | } |
16971 | |
16972 | ExprResult Sema::ActOnObjCAvailabilityCheckExpr( |
16973 | llvm::ArrayRef<AvailabilitySpec> AvailSpecs, SourceLocation AtLoc, |
16974 | SourceLocation RParen) { |
16975 | |
16976 | StringRef Platform = getASTContext().getTargetInfo().getPlatformName(); |
16977 | |
16978 | auto Spec = std::find_if(AvailSpecs.begin(), AvailSpecs.end(), |
16979 | [&](const AvailabilitySpec &Spec) { |
16980 | return Spec.getPlatform() == Platform; |
16981 | }); |
16982 | |
16983 | VersionTuple Version; |
16984 | if (Spec != AvailSpecs.end()) |
16985 | Version = Spec->getVersion(); |
16986 | |
16987 | |
16988 | |
16989 | if (getCurFunctionOrMethodDecl()) |
16990 | getEnclosingFunction()->HasPotentialAvailabilityViolations = true; |
16991 | else if (getCurBlock() || getCurLambda()) |
16992 | getCurFunction()->HasPotentialAvailabilityViolations = true; |
16993 | |
16994 | return new (Context) |
16995 | ObjCAvailabilityCheckExpr(Version, AtLoc, RParen, Context.BoolTy); |
16996 | } |
16997 | |