1 | |
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12 | |
13 | |
14 | #include "clang/Basic/IdentifierTable.h" |
15 | #include "clang/Basic/CharInfo.h" |
16 | #include "clang/Basic/LangOptions.h" |
17 | #include "clang/Basic/OperatorKinds.h" |
18 | #include "clang/Basic/Specifiers.h" |
19 | #include "clang/Basic/TokenKinds.h" |
20 | #include "llvm/ADT/DenseMapInfo.h" |
21 | #include "llvm/ADT/FoldingSet.h" |
22 | #include "llvm/ADT/SmallString.h" |
23 | #include "llvm/ADT/StringMap.h" |
24 | #include "llvm/ADT/StringRef.h" |
25 | #include "llvm/Support/Allocator.h" |
26 | #include "llvm/Support/ErrorHandling.h" |
27 | #include "llvm/Support/raw_ostream.h" |
28 | #include <cassert> |
29 | #include <cstdio> |
30 | #include <cstring> |
31 | #include <string> |
32 | |
33 | using namespace clang; |
34 | |
35 | |
36 | |
37 | |
38 | |
39 | IdentifierIterator::~IdentifierIterator() = default; |
40 | |
41 | IdentifierInfoLookup::~IdentifierInfoLookup() = default; |
42 | |
43 | namespace { |
44 | |
45 | |
46 | |
47 | class EmptyLookupIterator : public IdentifierIterator |
48 | { |
49 | public: |
50 | StringRef Next() override { return StringRef(); } |
51 | }; |
52 | |
53 | } |
54 | |
55 | IdentifierIterator *IdentifierInfoLookup::getIdentifiers() { |
56 | return new EmptyLookupIterator(); |
57 | } |
58 | |
59 | IdentifierTable::IdentifierTable(IdentifierInfoLookup *ExternalLookup) |
60 | : HashTable(8192), |
61 | ExternalLookup(ExternalLookup) {} |
62 | |
63 | IdentifierTable::IdentifierTable(const LangOptions &LangOpts, |
64 | IdentifierInfoLookup *ExternalLookup) |
65 | : IdentifierTable(ExternalLookup) { |
66 | |
67 | |
68 | AddKeywords(LangOpts); |
69 | } |
70 | |
71 | |
72 | |
73 | |
74 | |
75 | |
76 | namespace { |
77 | |
78 | enum { |
79 | KEYC99 = 0x1, |
80 | KEYCXX = 0x2, |
81 | KEYCXX11 = 0x4, |
82 | KEYGNU = 0x8, |
83 | KEYMS = 0x10, |
84 | BOOLSUPPORT = 0x20, |
85 | KEYALTIVEC = 0x40, |
86 | KEYNOCXX = 0x80, |
87 | KEYBORLAND = 0x100, |
88 | KEYOPENCLC = 0x200, |
89 | KEYC11 = 0x400, |
90 | KEYNOMS18 = 0x800, |
91 | KEYNOOPENCL = 0x1000, |
92 | WCHARSUPPORT = 0x2000, |
93 | HALFSUPPORT = 0x4000, |
94 | CHAR8SUPPORT = 0x8000, |
95 | KEYCONCEPTS = 0x10000, |
96 | KEYOBJC = 0x20000, |
97 | KEYZVECTOR = 0x40000, |
98 | KEYCOROUTINES = 0x80000, |
99 | KEYMODULES = 0x100000, |
100 | KEYCXX2A = 0x200000, |
101 | KEYOPENCLCXX = 0x400000, |
102 | KEYMSCOMPAT = 0x800000, |
103 | KEYALLCXX = KEYCXX | KEYCXX11 | KEYCXX2A, |
104 | KEYALL = (0xffffff & ~KEYNOMS18 & |
105 | ~KEYNOOPENCL) |
106 | }; |
107 | |
108 | |
109 | enum KeywordStatus { |
110 | KS_Disabled, |
111 | KS_Extension, |
112 | KS_Enabled, |
113 | KS_Future |
114 | }; |
115 | |
116 | } |
117 | |
118 | |
119 | |
120 | static KeywordStatus getKeywordStatus(const LangOptions &LangOpts, |
121 | unsigned Flags) { |
122 | if (Flags == KEYALL) return KS_Enabled; |
123 | if (LangOpts.CPlusPlus && (Flags & KEYCXX)) return KS_Enabled; |
124 | if (LangOpts.CPlusPlus11 && (Flags & KEYCXX11)) return KS_Enabled; |
125 | if (LangOpts.CPlusPlus2a && (Flags & KEYCXX2A)) return KS_Enabled; |
126 | if (LangOpts.C99 && (Flags & KEYC99)) return KS_Enabled; |
127 | if (LangOpts.GNUKeywords && (Flags & KEYGNU)) return KS_Extension; |
128 | if (LangOpts.MicrosoftExt && (Flags & KEYMS)) return KS_Extension; |
129 | if (LangOpts.MSVCCompat && (Flags & KEYMSCOMPAT)) return KS_Enabled; |
130 | if (LangOpts.Borland && (Flags & KEYBORLAND)) return KS_Extension; |
131 | if (LangOpts.Bool && (Flags & BOOLSUPPORT)) return KS_Enabled; |
132 | if (LangOpts.Half && (Flags & HALFSUPPORT)) return KS_Enabled; |
133 | if (LangOpts.WChar && (Flags & WCHARSUPPORT)) return KS_Enabled; |
134 | if (LangOpts.Char8 && (Flags & CHAR8SUPPORT)) return KS_Enabled; |
135 | if (LangOpts.AltiVec && (Flags & KEYALTIVEC)) return KS_Enabled; |
136 | if (LangOpts.ZVector && (Flags & KEYZVECTOR)) return KS_Enabled; |
137 | if (LangOpts.OpenCL && !LangOpts.OpenCLCPlusPlus && (Flags & KEYOPENCLC)) |
138 | return KS_Enabled; |
139 | if (LangOpts.OpenCLCPlusPlus && (Flags & KEYOPENCLCXX)) return KS_Enabled; |
140 | if (!LangOpts.CPlusPlus && (Flags & KEYNOCXX)) return KS_Enabled; |
141 | if (LangOpts.C11 && (Flags & KEYC11)) return KS_Enabled; |
142 | |
143 | |
144 | if (LangOpts.ObjC && (Flags & KEYOBJC)) return KS_Enabled; |
145 | if (LangOpts.ConceptsTS && (Flags & KEYCONCEPTS)) return KS_Enabled; |
146 | if (LangOpts.Coroutines && (Flags & KEYCOROUTINES)) return KS_Enabled; |
147 | if (LangOpts.ModulesTS && (Flags & KEYMODULES)) return KS_Enabled; |
148 | if (LangOpts.CPlusPlus && (Flags & KEYALLCXX)) return KS_Future; |
149 | return KS_Disabled; |
150 | } |
151 | |
152 | |
153 | |
154 | |
155 | static void AddKeyword(StringRef Keyword, |
156 | tok::TokenKind TokenCode, unsigned Flags, |
157 | const LangOptions &LangOpts, IdentifierTable &Table) { |
158 | KeywordStatus AddResult = getKeywordStatus(LangOpts, Flags); |
159 | |
160 | |
161 | if (LangOpts.MSVCCompat && (Flags & KEYNOMS18) && |
162 | !LangOpts.isCompatibleWithMSVC(LangOptions::MSVC2015)) |
163 | return; |
164 | |
165 | |
166 | if (LangOpts.OpenCL && (Flags & KEYNOOPENCL)) |
167 | return; |
168 | |
169 | |
170 | if (AddResult == KS_Disabled) return; |
171 | |
172 | IdentifierInfo &Info = |
173 | Table.get(Keyword, AddResult == KS_Future ? tok::identifier : TokenCode); |
174 | Info.setIsExtensionToken(AddResult == KS_Extension); |
175 | Info.setIsFutureCompatKeyword(AddResult == KS_Future); |
176 | } |
177 | |
178 | |
179 | |
180 | static void AddCXXOperatorKeyword(StringRef Keyword, |
181 | tok::TokenKind TokenCode, |
182 | IdentifierTable &Table) { |
183 | IdentifierInfo &Info = Table.get(Keyword, TokenCode); |
184 | Info.setIsCPlusPlusOperatorKeyword(); |
185 | } |
186 | |
187 | |
188 | |
189 | static void AddObjCKeyword(StringRef Name, |
190 | tok::ObjCKeywordKind ObjCID, |
191 | IdentifierTable &Table) { |
192 | Table.get(Name).setObjCKeywordID(ObjCID); |
193 | } |
194 | |
195 | |
196 | |
197 | void IdentifierTable::AddKeywords(const LangOptions &LangOpts) { |
198 | |
199 | #define KEYWORD(NAME, FLAGS) \ |
200 | AddKeyword(StringRef(#NAME), tok::kw_ ## NAME, \ |
201 | FLAGS, LangOpts, *this); |
202 | #define ALIAS(NAME, TOK, FLAGS) \ |
203 | AddKeyword(StringRef(NAME), tok::kw_ ## TOK, \ |
204 | FLAGS, LangOpts, *this); |
205 | #define CXX_KEYWORD_OPERATOR(NAME, ALIAS) \ |
206 | if (LangOpts.CXXOperatorNames) \ |
207 | AddCXXOperatorKeyword(StringRef(#NAME), tok::ALIAS, *this); |
208 | #define OBJC_AT_KEYWORD(NAME) \ |
209 | if (LangOpts.ObjC) \ |
210 | AddObjCKeyword(StringRef(#NAME), tok::objc_##NAME, *this); |
211 | #define TESTING_KEYWORD(NAME, FLAGS) |
212 | #include "clang/Basic/TokenKinds.def" |
213 | |
214 | if (LangOpts.ParseUnknownAnytype) |
215 | AddKeyword("__unknown_anytype", tok::kw___unknown_anytype, KEYALL, |
216 | LangOpts, *this); |
217 | |
218 | if (LangOpts.DeclSpecKeyword) |
219 | AddKeyword("__declspec", tok::kw___declspec, KEYALL, LangOpts, *this); |
220 | |
221 | |
222 | get("import").setModulesImport(true); |
223 | } |
224 | |
225 | |
226 | |
227 | |
228 | static KeywordStatus getTokenKwStatus(const LangOptions &LangOpts, |
229 | tok::TokenKind K) { |
230 | switch (K) { |
231 | #define KEYWORD(NAME, FLAGS) \ |
232 | case tok::kw_##NAME: return getKeywordStatus(LangOpts, FLAGS); |
233 | #include "clang/Basic/TokenKinds.def" |
234 | default: return KS_Disabled; |
235 | } |
236 | } |
237 | |
238 | |
239 | |
240 | bool IdentifierInfo::isKeyword(const LangOptions &LangOpts) const { |
241 | switch (getTokenKwStatus(LangOpts, getTokenID())) { |
242 | case KS_Enabled: |
243 | case KS_Extension: |
244 | return true; |
245 | default: |
246 | return false; |
247 | } |
248 | } |
249 | |
250 | |
251 | |
252 | bool IdentifierInfo::isCPlusPlusKeyword(const LangOptions &LangOpts) const { |
253 | if (!LangOpts.CPlusPlus || !isKeyword(LangOpts)) |
254 | return false; |
255 | |
256 | |
257 | LangOptions LangOptsNoCPP = LangOpts; |
258 | LangOptsNoCPP.CPlusPlus = false; |
259 | LangOptsNoCPP.CPlusPlus11 = false; |
260 | LangOptsNoCPP.CPlusPlus2a = false; |
261 | return !isKeyword(LangOptsNoCPP); |
262 | } |
263 | |
264 | tok::PPKeywordKind IdentifierInfo::getPPKeywordID() const { |
265 | |
266 | |
267 | |
268 | |
269 | |
270 | #define HASH(LEN, FIRST, THIRD) \ |
271 | (LEN << 5) + (((FIRST-'a') + (THIRD-'a')) & 31) |
272 | #define CASE(LEN, FIRST, THIRD, NAME) \ |
273 | case HASH(LEN, FIRST, THIRD): \ |
274 | return memcmp(Name, #NAME, LEN) ? tok::pp_not_keyword : tok::pp_ ## NAME |
275 | |
276 | unsigned Len = getLength(); |
277 | if (Len < 2) return tok::pp_not_keyword; |
278 | const char *Name = getNameStart(); |
279 | switch (HASH(Len, Name[0], Name[2])) { |
280 | default: return tok::pp_not_keyword; |
281 | CASE( 2, 'i', '\0', if); |
282 | CASE( 4, 'e', 'i', elif); |
283 | CASE( 4, 'e', 's', else); |
284 | CASE( 4, 'l', 'n', line); |
285 | CASE( 4, 's', 'c', sccs); |
286 | CASE( 5, 'e', 'd', endif); |
287 | CASE( 5, 'e', 'r', error); |
288 | CASE( 5, 'i', 'e', ident); |
289 | CASE( 5, 'i', 'd', ifdef); |
290 | CASE( 5, 'u', 'd', undef); |
291 | |
292 | CASE( 6, 'a', 's', assert); |
293 | CASE( 6, 'd', 'f', define); |
294 | CASE( 6, 'i', 'n', ifndef); |
295 | CASE( 6, 'i', 'p', import); |
296 | CASE( 6, 'p', 'a', pragma); |
297 | |
298 | CASE( 7, 'd', 'f', defined); |
299 | CASE( 7, 'i', 'c', include); |
300 | CASE( 7, 'w', 'r', warning); |
301 | |
302 | CASE( 8, 'u', 'a', unassert); |
303 | CASE(12, 'i', 'c', include_next); |
304 | |
305 | CASE(14, '_', 'p', __public_macro); |
306 | |
307 | CASE(15, '_', 'p', __private_macro); |
308 | |
309 | CASE(16, '_', 'i', __include_macros); |
310 | #undef CASE |
311 | #undef HASH |
312 | } |
313 | } |
314 | |
315 | |
316 | |
317 | |
318 | |
319 | |
320 | |
321 | void IdentifierTable::PrintStats() const { |
322 | unsigned NumBuckets = HashTable.getNumBuckets(); |
323 | unsigned NumIdentifiers = HashTable.getNumItems(); |
324 | unsigned NumEmptyBuckets = NumBuckets-NumIdentifiers; |
325 | unsigned AverageIdentifierSize = 0; |
326 | unsigned MaxIdentifierLength = 0; |
327 | |
328 | |
329 | for (llvm::StringMap<IdentifierInfo*, llvm::BumpPtrAllocator>::const_iterator |
330 | I = HashTable.begin(), E = HashTable.end(); I != E; ++I) { |
331 | unsigned IdLen = I->getKeyLength(); |
332 | AverageIdentifierSize += IdLen; |
333 | if (MaxIdentifierLength < IdLen) |
334 | MaxIdentifierLength = IdLen; |
335 | } |
336 | |
337 | fprintf(stderr, "\n*** Identifier Table Stats:\n"); |
338 | fprintf(stderr, "# Identifiers: %d\n", NumIdentifiers); |
339 | fprintf(stderr, "# Empty Buckets: %d\n", NumEmptyBuckets); |
340 | fprintf(stderr, "Hash density (#identifiers per bucket): %f\n", |
341 | NumIdentifiers/(double)NumBuckets); |
342 | fprintf(stderr, "Ave identifier length: %f\n", |
343 | (AverageIdentifierSize/(double)NumIdentifiers)); |
344 | fprintf(stderr, "Max identifier length: %d\n", MaxIdentifierLength); |
345 | |
346 | |
347 | HashTable.getAllocator().PrintStats(); |
348 | } |
349 | |
350 | |
351 | |
352 | |
353 | |
354 | unsigned llvm::DenseMapInfo<clang::Selector>::getHashValue(clang::Selector S) { |
355 | return DenseMapInfo<void*>::getHashValue(S.getAsOpaquePtr()); |
356 | } |
357 | |
358 | namespace clang { |
359 | |
360 | |
361 | |
362 | |
363 | |
364 | class alignas(IdentifierInfoAlignment) MultiKeywordSelector |
365 | : public detail::DeclarationNameExtra, |
366 | public llvm::FoldingSetNode { |
367 | MultiKeywordSelector(unsigned nKeys) : DeclarationNameExtra(nKeys) {} |
368 | |
369 | public: |
370 | |
371 | MultiKeywordSelector(unsigned nKeys, IdentifierInfo **IIV) |
372 | : DeclarationNameExtra(nKeys) { |
373 | (0) . __assert_fail ("(nKeys > 1) && \"not a multi-keyword selector\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 373, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((nKeys > 1) && "not a multi-keyword selector"); |
374 | |
375 | |
376 | IdentifierInfo **KeyInfo = reinterpret_cast<IdentifierInfo **>(this + 1); |
377 | for (unsigned i = 0; i != nKeys; ++i) |
378 | KeyInfo[i] = IIV[i]; |
379 | } |
380 | |
381 | |
382 | std::string getName() const; |
383 | |
384 | using DeclarationNameExtra::getNumArgs; |
385 | |
386 | using keyword_iterator = IdentifierInfo *const *; |
387 | |
388 | keyword_iterator keyword_begin() const { |
389 | return reinterpret_cast<keyword_iterator>(this + 1); |
390 | } |
391 | |
392 | keyword_iterator keyword_end() const { |
393 | return keyword_begin() + getNumArgs(); |
394 | } |
395 | |
396 | IdentifierInfo *getIdentifierInfoForSlot(unsigned i) const { |
397 | (0) . __assert_fail ("i < getNumArgs() && \"getIdentifierInfoForSlot(). illegal index\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 397, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(i < getNumArgs() && "getIdentifierInfoForSlot(): illegal index"); |
398 | return keyword_begin()[i]; |
399 | } |
400 | |
401 | static void Profile(llvm::FoldingSetNodeID &ID, keyword_iterator ArgTys, |
402 | unsigned NumArgs) { |
403 | ID.AddInteger(NumArgs); |
404 | for (unsigned i = 0; i != NumArgs; ++i) |
405 | ID.AddPointer(ArgTys[i]); |
406 | } |
407 | |
408 | void Profile(llvm::FoldingSetNodeID &ID) { |
409 | Profile(ID, keyword_begin(), getNumArgs()); |
410 | } |
411 | }; |
412 | |
413 | } |
414 | |
415 | unsigned Selector::getNumArgs() const { |
416 | unsigned IIF = getIdentifierInfoFlag(); |
417 | if (IIF <= ZeroArg) |
418 | return 0; |
419 | if (IIF == OneArg) |
420 | return 1; |
421 | |
422 | MultiKeywordSelector *SI = getMultiKeywordSelector(); |
423 | return SI->getNumArgs(); |
424 | } |
425 | |
426 | IdentifierInfo *Selector::getIdentifierInfoForSlot(unsigned argIndex) const { |
427 | if (getIdentifierInfoFlag() < MultiArg) { |
428 | (0) . __assert_fail ("argIndex == 0 && \"illegal keyword index\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 428, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(argIndex == 0 && "illegal keyword index"); |
429 | return getAsIdentifierInfo(); |
430 | } |
431 | |
432 | |
433 | MultiKeywordSelector *SI = getMultiKeywordSelector(); |
434 | return SI->getIdentifierInfoForSlot(argIndex); |
435 | } |
436 | |
437 | StringRef Selector::getNameForSlot(unsigned int argIndex) const { |
438 | IdentifierInfo *II = getIdentifierInfoForSlot(argIndex); |
439 | return II ? II->getName() : StringRef(); |
440 | } |
441 | |
442 | std::string MultiKeywordSelector::getName() const { |
443 | SmallString<256> Str; |
444 | llvm::raw_svector_ostream OS(Str); |
445 | for (keyword_iterator I = keyword_begin(), E = keyword_end(); I != E; ++I) { |
446 | if (*I) |
447 | OS << (*I)->getName(); |
448 | OS << ':'; |
449 | } |
450 | |
451 | return OS.str(); |
452 | } |
453 | |
454 | std::string Selector::getAsString() const { |
455 | if (InfoPtr == 0) |
456 | return "<null selector>"; |
457 | |
458 | if (getIdentifierInfoFlag() < MultiArg) { |
459 | IdentifierInfo *II = getAsIdentifierInfo(); |
460 | |
461 | if (getNumArgs() == 0) { |
462 | (0) . __assert_fail ("II && \"If the number of arguments is 0 then II is guaranteed to \" \"not be null.\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 463, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(II && "If the number of arguments is 0 then II is guaranteed to " |
463 | (0) . __assert_fail ("II && \"If the number of arguments is 0 then II is guaranteed to \" \"not be null.\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 463, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "not be null."); |
464 | return II->getName(); |
465 | } |
466 | |
467 | if (!II) |
468 | return ":"; |
469 | |
470 | return II->getName().str() + ":"; |
471 | } |
472 | |
473 | |
474 | return getMultiKeywordSelector()->getName(); |
475 | } |
476 | |
477 | void Selector::print(llvm::raw_ostream &OS) const { |
478 | OS << getAsString(); |
479 | } |
480 | |
481 | LLVM_DUMP_METHOD void Selector::dump() const { print(llvm::errs()); } |
482 | |
483 | |
484 | |
485 | |
486 | static bool startsWithWord(StringRef name, StringRef word) { |
487 | if (name.size() < word.size()) return false; |
488 | return ((name.size() == word.size() || !isLowercase(name[word.size()])) && |
489 | name.startswith(word)); |
490 | } |
491 | |
492 | ObjCMethodFamily Selector::getMethodFamilyImpl(Selector sel) { |
493 | IdentifierInfo *first = sel.getIdentifierInfoForSlot(0); |
494 | if (!first) return OMF_None; |
495 | |
496 | StringRef name = first->getName(); |
497 | if (sel.isUnarySelector()) { |
498 | if (name == "autorelease") return OMF_autorelease; |
499 | if (name == "dealloc") return OMF_dealloc; |
500 | if (name == "finalize") return OMF_finalize; |
501 | if (name == "release") return OMF_release; |
502 | if (name == "retain") return OMF_retain; |
503 | if (name == "retainCount") return OMF_retainCount; |
504 | if (name == "self") return OMF_self; |
505 | if (name == "initialize") return OMF_initialize; |
506 | } |
507 | |
508 | if (name == "performSelector" || name == "performSelectorInBackground" || |
509 | name == "performSelectorOnMainThread") |
510 | return OMF_performSelector; |
511 | |
512 | |
513 | while (!name.empty() && name.front() == '_') |
514 | name = name.substr(1); |
515 | |
516 | if (name.empty()) return OMF_None; |
517 | switch (name.front()) { |
518 | case 'a': |
519 | if (startsWithWord(name, "alloc")) return OMF_alloc; |
520 | break; |
521 | case 'c': |
522 | if (startsWithWord(name, "copy")) return OMF_copy; |
523 | break; |
524 | case 'i': |
525 | if (startsWithWord(name, "init")) return OMF_init; |
526 | break; |
527 | case 'm': |
528 | if (startsWithWord(name, "mutableCopy")) return OMF_mutableCopy; |
529 | break; |
530 | case 'n': |
531 | if (startsWithWord(name, "new")) return OMF_new; |
532 | break; |
533 | default: |
534 | break; |
535 | } |
536 | |
537 | return OMF_None; |
538 | } |
539 | |
540 | ObjCInstanceTypeFamily Selector::getInstTypeMethodFamily(Selector sel) { |
541 | IdentifierInfo *first = sel.getIdentifierInfoForSlot(0); |
542 | if (!first) return OIT_None; |
543 | |
544 | StringRef name = first->getName(); |
545 | |
546 | if (name.empty()) return OIT_None; |
547 | switch (name.front()) { |
548 | case 'a': |
549 | if (startsWithWord(name, "array")) return OIT_Array; |
550 | break; |
551 | case 'd': |
552 | if (startsWithWord(name, "default")) return OIT_ReturnsSelf; |
553 | if (startsWithWord(name, "dictionary")) return OIT_Dictionary; |
554 | break; |
555 | case 's': |
556 | if (startsWithWord(name, "shared")) return OIT_ReturnsSelf; |
557 | if (startsWithWord(name, "standard")) return OIT_Singleton; |
558 | break; |
559 | case 'i': |
560 | if (startsWithWord(name, "init")) return OIT_Init; |
561 | break; |
562 | default: |
563 | break; |
564 | } |
565 | return OIT_None; |
566 | } |
567 | |
568 | ObjCStringFormatFamily Selector::getStringFormatFamilyImpl(Selector sel) { |
569 | IdentifierInfo *first = sel.getIdentifierInfoForSlot(0); |
570 | if (!first) return SFF_None; |
571 | |
572 | StringRef name = first->getName(); |
573 | |
574 | switch (name.front()) { |
575 | case 'a': |
576 | if (name == "appendFormat") return SFF_NSString; |
577 | break; |
578 | |
579 | case 'i': |
580 | if (name == "initWithFormat") return SFF_NSString; |
581 | break; |
582 | |
583 | case 'l': |
584 | if (name == "localizedStringWithFormat") return SFF_NSString; |
585 | break; |
586 | |
587 | case 's': |
588 | if (name == "stringByAppendingFormat" || |
589 | name == "stringWithFormat") return SFF_NSString; |
590 | break; |
591 | } |
592 | return SFF_None; |
593 | } |
594 | |
595 | namespace { |
596 | |
597 | struct SelectorTableImpl { |
598 | llvm::FoldingSet<MultiKeywordSelector> Table; |
599 | llvm::BumpPtrAllocator Allocator; |
600 | }; |
601 | |
602 | } |
603 | |
604 | static SelectorTableImpl &getSelectorTableImpl(void *P) { |
605 | return *static_cast<SelectorTableImpl*>(P); |
606 | } |
607 | |
608 | SmallString<64> |
609 | SelectorTable::constructSetterName(StringRef Name) { |
610 | SmallString<64> SetterName("set"); |
611 | SetterName += Name; |
612 | SetterName[3] = toUppercase(SetterName[3]); |
613 | return SetterName; |
614 | } |
615 | |
616 | Selector |
617 | SelectorTable::constructSetterSelector(IdentifierTable &Idents, |
618 | SelectorTable &SelTable, |
619 | const IdentifierInfo *Name) { |
620 | IdentifierInfo *SetterName = |
621 | &Idents.get(constructSetterName(Name->getName())); |
622 | return SelTable.getUnarySelector(SetterName); |
623 | } |
624 | |
625 | std::string SelectorTable::getPropertyNameFromSetterSelector(Selector Sel) { |
626 | StringRef Name = Sel.getNameForSlot(0); |
627 | (0) . __assert_fail ("Name.startswith(\"set\") && \"invalid setter name\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 627, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Name.startswith("set") && "invalid setter name"); |
628 | return (Twine(toLowercase(Name[3])) + Name.drop_front(4)).str(); |
629 | } |
630 | |
631 | size_t SelectorTable::getTotalMemory() const { |
632 | SelectorTableImpl &SelTabImpl = getSelectorTableImpl(Impl); |
633 | return SelTabImpl.Allocator.getTotalMemory(); |
634 | } |
635 | |
636 | Selector SelectorTable::getSelector(unsigned nKeys, IdentifierInfo **IIV) { |
637 | if (nKeys < 2) |
638 | return Selector(IIV[0], nKeys); |
639 | |
640 | SelectorTableImpl &SelTabImpl = getSelectorTableImpl(Impl); |
641 | |
642 | |
643 | llvm::FoldingSetNodeID ID; |
644 | MultiKeywordSelector::Profile(ID, IIV, nKeys); |
645 | |
646 | void *InsertPos = nullptr; |
647 | if (MultiKeywordSelector *SI = |
648 | SelTabImpl.Table.FindNodeOrInsertPos(ID, InsertPos)) |
649 | return Selector(SI); |
650 | |
651 | |
652 | |
653 | unsigned Size = sizeof(MultiKeywordSelector) + nKeys*sizeof(IdentifierInfo *); |
654 | MultiKeywordSelector *SI = |
655 | (MultiKeywordSelector *)SelTabImpl.Allocator.Allocate( |
656 | Size, alignof(MultiKeywordSelector)); |
657 | new (SI) MultiKeywordSelector(nKeys, IIV); |
658 | SelTabImpl.Table.InsertNode(SI, InsertPos); |
659 | return Selector(SI); |
660 | } |
661 | |
662 | SelectorTable::SelectorTable() { |
663 | Impl = new SelectorTableImpl(); |
664 | } |
665 | |
666 | SelectorTable::~SelectorTable() { |
667 | delete &getSelectorTableImpl(Impl); |
668 | } |
669 | |
670 | const char *clang::getOperatorSpelling(OverloadedOperatorKind Operator) { |
671 | switch (Operator) { |
672 | case OO_None: |
673 | case NUM_OVERLOADED_OPERATORS: |
674 | return nullptr; |
675 | |
676 | #define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ |
677 | case OO_##Name: return Spelling; |
678 | #include "clang/Basic/OperatorKinds.def" |
679 | } |
680 | |
681 | llvm_unreachable("Invalid OverloadedOperatorKind!"); |
682 | } |
683 | |
684 | StringRef clang::getNullabilitySpelling(NullabilityKind kind, |
685 | bool isContextSensitive) { |
686 | switch (kind) { |
687 | case NullabilityKind::NonNull: |
688 | return isContextSensitive ? "nonnull" : "_Nonnull"; |
689 | |
690 | case NullabilityKind::Nullable: |
691 | return isContextSensitive ? "nullable" : "_Nullable"; |
692 | |
693 | case NullabilityKind::Unspecified: |
694 | return isContextSensitive ? "null_unspecified" : "_Null_unspecified"; |
695 | } |
696 | llvm_unreachable("Unknown nullability kind."); |
697 | } |
698 | |