Diagnostic.cpp source code [clang_source_code/lib/Basic/Diagnostic.cpp]

1	//===- Diagnostic.cpp - C Language Family Diagnostic Handling -------------===//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8	//
9	// This file implements the Diagnostic-related interfaces.
10	//
11	//===----------------------------------------------------------------------===//
12
13	#include "clang/Basic/Diagnostic.h"
14	#include "clang/Basic/CharInfo.h"
15	#include "clang/Basic/DiagnosticError.h"
16	#include "clang/Basic/DiagnosticIDs.h"
17	#include "clang/Basic/DiagnosticOptions.h"
18	#include "clang/Basic/IdentifierTable.h"
19	#include "clang/Basic/PartialDiagnostic.h"
20	#include "clang/Basic/SourceLocation.h"
21	#include "clang/Basic/SourceManager.h"
22	#include "clang/Basic/Specifiers.h"
23	#include "clang/Basic/TokenKinds.h"
24	#include "llvm/ADT/SmallString.h"
25	#include "llvm/ADT/SmallVector.h"
26	#include "llvm/ADT/StringExtras.h"
27	#include "llvm/ADT/StringRef.h"
28	#include "llvm/Support/CrashRecoveryContext.h"
29	#include "llvm/Support/Locale.h"
30	#include "llvm/Support/raw_ostream.h"
31	#include <algorithm>
32	#include <cassert>
33	#include <cstddef>
34	#include <cstdint>
35	#include <cstring>
36	#include <limits>
37	#include <string>
38	#include <utility>
39	#include <vector>
40
41	using namespace clang;
42
43	const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
44	DiagNullabilityKind nullability) {
45	StringRef string;
46	switch (nullability.first) {
47	case NullabilityKind::NonNull:
48	string = nullability.second ? "'nonnull'" : "'_Nonnull'";
49	break;
50
51	case NullabilityKind::Nullable:
52	string = nullability.second ? "'nullable'" : "'_Nullable'";
53	break;
54
55	case NullabilityKind::Unspecified:
56	string = nullability.second ? "'null_unspecified'" : "'_Null_unspecified'";
57	break;
58	}
59
60	DB.AddString(string);
61	return DB;
62	}
63
64	static void DummyArgToStringFn(DiagnosticsEngine::ArgumentKind AK, intptr_t QT,
65	StringRef Modifier, StringRef Argument,
66	ArrayRef<DiagnosticsEngine::ArgumentValue> PrevArgs,
67	SmallVectorImpl<char> &Output,
68	void *Cookie,
69	ArrayRef<intptr_t> QualTypeVals) {
70	StringRef Str = "<can't format argument>";
71	Output.append(Str.begin(), Str.end());
72	}
73
74	DiagnosticsEngine::DiagnosticsEngine(
75	IntrusiveRefCntPtr<DiagnosticIDs> diags,
76	IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts, DiagnosticConsumer *client,
77	bool ShouldOwnClient)
78	: Diags(std::move(diags)), DiagOpts(std::move(DiagOpts)) {
79	setClient(client, ShouldOwnClient);
80	ArgToStringFn = DummyArgToStringFn;
81
82	Reset();
83	}
84
85	DiagnosticsEngine::~DiagnosticsEngine() {
86	// If we own the diagnostic client, destroy it first so that it can access the
87	// engine from its destructor.
88	setClient(nullptr);
89	}
90
91	void DiagnosticsEngine::dump() const {
92	DiagStatesByLoc.dump(*SourceMgr);
93	}
94
95	void DiagnosticsEngine::dump(StringRef DiagName) const {
96	DiagStatesByLoc.dump(*SourceMgr, DiagName);
97	}
98
99	void DiagnosticsEngine::setClient(DiagnosticConsumer *client,
100	bool ShouldOwnClient) {
101	Owner.reset(ShouldOwnClient ? client : nullptr);
102	Client = client;
103	}
104
105	void DiagnosticsEngine::pushMappings(SourceLocation Loc) {
106	DiagStateOnPushStack.push_back(GetCurDiagState());
107	}
108
109	bool DiagnosticsEngine::popMappings(SourceLocation Loc) {
110	if (DiagStateOnPushStack.empty())
111	return false;
112
113	if (DiagStateOnPushStack.back() != GetCurDiagState()) {
114	// State changed at some point between push/pop.
115	PushDiagStatePoint(DiagStateOnPushStack.back(), Loc);
116	}
117	DiagStateOnPushStack.pop_back();
118	return true;
119	}
120
121	void DiagnosticsEngine::Reset() {
122	ErrorOccurred = false;
123	UncompilableErrorOccurred = false;
124	FatalErrorOccurred = false;
125	UnrecoverableErrorOccurred = false;
126
127	NumWarnings = 0;
128	NumErrors = 0;
129	TrapNumErrorsOccurred = 0;
130	TrapNumUnrecoverableErrorsOccurred = 0;
131
132	CurDiagID = std::numeric_limits<unsigned>::max();
133	LastDiagLevel = DiagnosticIDs::Ignored;
134	DelayedDiagID = 0;
135
136	// Clear state related to #pragma diagnostic.
137	DiagStates.clear();
138	DiagStatesByLoc.clear();
139	DiagStateOnPushStack.clear();
140
141	// Create a DiagState and DiagStatePoint representing diagnostic changes
142	// through command-line.
143	DiagStates.emplace_back();
144	DiagStatesByLoc.appendFirst(&DiagStates.back());
145	}
146
147	void DiagnosticsEngine::SetDelayedDiagnostic(unsigned DiagID, StringRef Arg1,
148	StringRef Arg2) {
149	if (DelayedDiagID)
150	return;
151
152	DelayedDiagID = DiagID;
153	DelayedDiagArg1 = Arg1.str();
154	DelayedDiagArg2 = Arg2.str();
155	}
156
157	void DiagnosticsEngine::ReportDelayed() {
158	unsigned ID = DelayedDiagID;
159	DelayedDiagID = 0;
160	Report(ID) << DelayedDiagArg1 << DelayedDiagArg2;
161	}
162
163	void DiagnosticsEngine::DiagStateMap::appendFirst(DiagState *State) {
164	(0) . __assert_fail ("Files.empty() && \"not first\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 164, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Files.empty() && "not first");
165	FirstDiagState = CurDiagState = State;
166	CurDiagStateLoc = SourceLocation();
167	}
168
169	void DiagnosticsEngine::DiagStateMap::append(SourceManager &SrcMgr,
170	SourceLocation Loc,
171	DiagState *State) {
172	CurDiagState = State;
173	CurDiagStateLoc = Loc;
174
175	std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedLoc(Loc);
176	unsigned Offset = Decomp.second;
177	for (File *F = getFile(SrcMgr, Decomp.first); F;
178	Offset = F->ParentOffset, F = F->Parent) {
179	F->HasLocalTransitions = true;
180	auto &Last = F->StateTransitions.back();
181	(0) . __assert_fail ("Last.Offset <= Offset && \"state transitions added out of order\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 181, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Last.Offset <= Offset && "state transitions added out of order");
182
183	if (Last.Offset == Offset) {
184	if (Last.State == State)
185	break;
186	Last.State = State;
187	continue;
188	}
189
190	F->StateTransitions.push_back({State, Offset});
191	}
192	}
193
194	DiagnosticsEngine::DiagState *
195	DiagnosticsEngine::DiagStateMap::lookup(SourceManager &SrcMgr,
196	SourceLocation Loc) const {
197	// Common case: we have not seen any diagnostic pragmas.
198	if (Files.empty())
199	return FirstDiagState;
200
201	std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedLoc(Loc);
202	const File *F = getFile(SrcMgr, Decomp.first);
203	return F->lookup(Decomp.second);
204	}
205
206	DiagnosticsEngine::DiagState *
207	DiagnosticsEngine::DiagStateMap::File::lookup(unsigned Offset) const {
208	auto OnePastIt = std::upper_bound(
209	StateTransitions.begin(), StateTransitions.end(), Offset,
210	[](unsigned Offset, const DiagStatePoint &P) {
211	return Offset < P.Offset;
212	});
213	(0) . __assert_fail ("OnePastIt != StateTransitions.begin() && \"missing initial state\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 213, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(OnePastIt != StateTransitions.begin() && "missing initial state");
214	return OnePastIt[-1].State;
215	}
216
217	DiagnosticsEngine::DiagStateMap::File *
218	DiagnosticsEngine::DiagStateMap::getFile(SourceManager &SrcMgr,
219	FileID ID) const {
220	// Get or insert the File for this ID.
221	auto Range = Files.equal_range(ID);
222	if (Range.first != Range.second)
223	return &Range.first->second;
224	auto &F = Files.insert(Range.first, std::make_pair(ID, File()))->second;
225
226	// We created a new File; look up the diagnostic state at the start of it and
227	// initialize it.
228	if (ID.isValid()) {
229	std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedIncludedLoc(ID);
230	F.Parent = getFile(SrcMgr, Decomp.first);
231	F.ParentOffset = Decomp.second;
232	F.StateTransitions.push_back({F.Parent->lookup(Decomp.second), 0});
233	} else {
234	// This is the (imaginary) root file into which we pretend all top-level
235	// files are included; it descends from the initial state.
236	//
237	// FIXME: This doesn't guarantee that we use the same ordering as
238	// isBeforeInTranslationUnit in the cases where someone invented another
239	// top-level file and added diagnostic pragmas to it. See the code at the
240	// end of isBeforeInTranslationUnit for the quirks it deals with.
241	F.StateTransitions.push_back({FirstDiagState, 0});
242	}
243	return &F;
244	}
245
246	void DiagnosticsEngine::DiagStateMap::dump(SourceManager &SrcMgr,
247	StringRef DiagName) const {
248	llvm::errs() << "diagnostic state at ";
249	CurDiagStateLoc.print(llvm::errs(), SrcMgr);
250	llvm::errs() << ": " << CurDiagState << "\n";
251
252	for (auto &F : Files) {
253	FileID ID = F.first;
254	File &File = F.second;
255
256	bool PrintedOuterHeading = false;
257	auto PrintOuterHeading = [&] {
258	if (PrintedOuterHeading) return;
259	PrintedOuterHeading = true;
260
261	llvm::errs() << "File " << &File << " <FileID " << ID.getHashValue()
262	<< ">: " << SrcMgr.getBuffer(ID)->getBufferIdentifier();
263	if (F.second.Parent) {
264	std::pair<FileID, unsigned> Decomp =
265	SrcMgr.getDecomposedIncludedLoc(ID);
266	assert(File.ParentOffset == Decomp.second);
267	llvm::errs() << " parent " << File.Parent << " <FileID "
268	<< Decomp.first.getHashValue() << "> ";
269	SrcMgr.getLocForStartOfFile(Decomp.first)
270	.getLocWithOffset(Decomp.second)
271	.print(llvm::errs(), SrcMgr);
272	}
273	if (File.HasLocalTransitions)
274	llvm::errs() << " has_local_transitions";
275	llvm::errs() << "\n";
276	};
277
278	if (DiagName.empty())
279	PrintOuterHeading();
280
281	for (DiagStatePoint &Transition : File.StateTransitions) {
282	bool PrintedInnerHeading = false;
283	auto PrintInnerHeading = [&] {
284	if (PrintedInnerHeading) return;
285	PrintedInnerHeading = true;
286
287	PrintOuterHeading();
288	llvm::errs() << " ";
289	SrcMgr.getLocForStartOfFile(ID)
290	.getLocWithOffset(Transition.Offset)
291	.print(llvm::errs(), SrcMgr);
292	llvm::errs() << ": state " << Transition.State << ":\n";
293	};
294
295	if (DiagName.empty())
296	PrintInnerHeading();
297
298	for (auto &Mapping : *Transition.State) {
299	StringRef Option =
300	DiagnosticIDs::getWarningOptionForDiag(Mapping.first);
301	if (!DiagName.empty() && DiagName != Option)
302	continue;
303
304	PrintInnerHeading();
305	llvm::errs() << " ";
306	if (Option.empty())
307	llvm::errs() << "<unknown " << Mapping.first << ">";
308	else
309	llvm::errs() << Option;
310	llvm::errs() << ": ";
311
312	switch (Mapping.second.getSeverity()) {
313	case diag::Severity::Ignored: llvm::errs() << "ignored"; break;
314	case diag::Severity::Remark: llvm::errs() << "remark"; break;
315	case diag::Severity::Warning: llvm::errs() << "warning"; break;
316	case diag::Severity::Error: llvm::errs() << "error"; break;
317	case diag::Severity::Fatal: llvm::errs() << "fatal"; break;
318	}
319
320	if (!Mapping.second.isUser())
321	llvm::errs() << " default";
322	if (Mapping.second.isPragma())
323	llvm::errs() << " pragma";
324	if (Mapping.second.hasNoWarningAsError())
325	llvm::errs() << " no-error";
326	if (Mapping.second.hasNoErrorAsFatal())
327	llvm::errs() << " no-fatal";
328	if (Mapping.second.wasUpgradedFromWarning())
329	llvm::errs() << " overruled";
330	llvm::errs() << "\n";
331	}
332	}
333	}
334	}
335
336	void DiagnosticsEngine::PushDiagStatePoint(DiagState *State,
337	SourceLocation Loc) {
338	(0) . __assert_fail ("Loc.isValid() && \"Adding invalid loc point\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 338, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Loc.isValid() && "Adding invalid loc point");
339	DiagStatesByLoc.append(*SourceMgr, Loc, State);
340	}
341
342	void DiagnosticsEngine::setSeverity(diag::kind Diag, diag::Severity Map,
343	SourceLocation L) {
344	(0) . __assert_fail ("Diag < diag..DIAG_UPPER_LIMIT && \"Can only map builtin diagnostics\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 345, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Diag < diag::DIAG_UPPER_LIMIT &&
345	(0) . __assert_fail ("Diag < diag..DIAG_UPPER_LIMIT && \"Can only map builtin diagnostics\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 345, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Can only map builtin diagnostics");
346	(0) . __assert_fail ("(Diags->isBuiltinWarningOrExtension(Diag) \|\| (Map == diag..Severity..Fatal \|\| Map == diag..Severity..Error)) && \"Cannot map errors into warnings!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 348, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((Diags->isBuiltinWarningOrExtension(Diag) \|\|
347	(0) . __assert_fail ("(Diags->isBuiltinWarningOrExtension(Diag) \|\| (Map == diag..Severity..Fatal \|\| Map == diag..Severity..Error)) && \"Cannot map errors into warnings!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 348, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> (Map == diag::Severity::Fatal \|\| Map == diag::Severity::Error)) &&
348	(0) . __assert_fail ("(Diags->isBuiltinWarningOrExtension(Diag) \|\| (Map == diag..Severity..Fatal \|\| Map == diag..Severity..Error)) && \"Cannot map errors into warnings!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 348, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Cannot map errors into warnings!");
349	(0) . __assert_fail ("(L.isInvalid() \|\| SourceMgr) && \"No SourceMgr for valid location\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 349, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((L.isInvalid() \|\| SourceMgr) && "No SourceMgr for valid location");
350
351	// Don't allow a mapping to a warning override an error/fatal mapping.
352	bool WasUpgradedFromWarning = false;
353	if (Map == diag::Severity::Warning) {
354	DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
355	if (Info.getSeverity() == diag::Severity::Error \|\|
356	Info.getSeverity() == diag::Severity::Fatal) {
357	Map = Info.getSeverity();
358	WasUpgradedFromWarning = true;
359	}
360	}
361	DiagnosticMapping Mapping = makeUserMapping(Map, L);
362	Mapping.setUpgradedFromWarning(WasUpgradedFromWarning);
363
364	// Common case; setting all the diagnostics of a group in one place.
365	if ((L.isInvalid() \|\| L == DiagStatesByLoc.getCurDiagStateLoc()) &&
366	DiagStatesByLoc.getCurDiagState()) {
367	// FIXME: This is theoretically wrong: if the current state is shared with
368	// some other location (via push/pop) we will change the state for that
369	// other location as well. This cannot currently happen, as we can't update
370	// the diagnostic state at the same location at which we pop.
371	DiagStatesByLoc.getCurDiagState()->setMapping(Diag, Mapping);
372	return;
373	}
374
375	// A diagnostic pragma occurred, create a new DiagState initialized with
376	// the current one and a new DiagStatePoint to record at which location
377	// the new state became active.
378	DiagStates.push_back(*GetCurDiagState());
379	DiagStates.back().setMapping(Diag, Mapping);
380	PushDiagStatePoint(&DiagStates.back(), L);
381	}
382
383	bool DiagnosticsEngine::setSeverityForGroup(diag::Flavor Flavor,
384	StringRef Group, diag::Severity Map,
385	SourceLocation Loc) {
386	// Get the diagnostics in this group.
387	SmallVector<diag::kind, 256> GroupDiags;
388	if (Diags->getDiagnosticsInGroup(Flavor, Group, GroupDiags))
389	return true;
390
391	// Set the mapping.
392	for (diag::kind Diag : GroupDiags)
393	setSeverity(Diag, Map, Loc);
394
395	return false;
396	}
397
398	bool DiagnosticsEngine::setDiagnosticGroupWarningAsError(StringRef Group,
399	bool Enabled) {
400	// If we are enabling this feature, just set the diagnostic mappings to map to
401	// errors.
402	if (Enabled)
403	return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
404	diag::Severity::Error);
405
406	// Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
407	// potentially downgrade anything already mapped to be a warning.
408
409	// Get the diagnostics in this group.
410	SmallVector<diag::kind, 8> GroupDiags;
411	if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
412	GroupDiags))
413	return true;
414
415	// Perform the mapping change.
416	for (diag::kind Diag : GroupDiags) {
417	DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
418
419	if (Info.getSeverity() == diag::Severity::Error \|\|
420	Info.getSeverity() == diag::Severity::Fatal)
421	Info.setSeverity(diag::Severity::Warning);
422
423	Info.setNoWarningAsError(true);
424	}
425
426	return false;
427	}
428
429	bool DiagnosticsEngine::setDiagnosticGroupErrorAsFatal(StringRef Group,
430	bool Enabled) {
431	// If we are enabling this feature, just set the diagnostic mappings to map to
432	// fatal errors.
433	if (Enabled)
434	return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
435	diag::Severity::Fatal);
436
437	// Otherwise, we want to set the diagnostic mapping's "no Wfatal-errors" bit,
438	// and potentially downgrade anything already mapped to be a fatal error.
439
440	// Get the diagnostics in this group.
441	SmallVector<diag::kind, 8> GroupDiags;
442	if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
443	GroupDiags))
444	return true;
445
446	// Perform the mapping change.
447	for (diag::kind Diag : GroupDiags) {
448	DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
449
450	if (Info.getSeverity() == diag::Severity::Fatal)
451	Info.setSeverity(diag::Severity::Error);
452
453	Info.setNoErrorAsFatal(true);
454	}
455
456	return false;
457	}
458
459	void DiagnosticsEngine::setSeverityForAll(diag::Flavor Flavor,
460	diag::Severity Map,
461	SourceLocation Loc) {
462	// Get all the diagnostics.
463	std::vector<diag::kind> AllDiags;
464	DiagnosticIDs::getAllDiagnostics(Flavor, AllDiags);
465
466	// Set the mapping.
467	for (diag::kind Diag : AllDiags)
468	if (Diags->isBuiltinWarningOrExtension(Diag))
469	setSeverity(Diag, Map, Loc);
470	}
471
472	void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) {
473	(0) . __assert_fail ("CurDiagID == std..numeric_limits..max() && \"Multiple diagnostics in flight at once!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 474, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(CurDiagID == std::numeric_limits<unsigned>::max() &&
474	(0) . __assert_fail ("CurDiagID == std..numeric_limits..max() && \"Multiple diagnostics in flight at once!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 474, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Multiple diagnostics in flight at once!");
475
476	CurDiagLoc = storedDiag.getLocation();
477	CurDiagID = storedDiag.getID();
478	NumDiagArgs = 0;
479
480	DiagRanges.clear();
481	DiagRanges.append(storedDiag.range_begin(), storedDiag.range_end());
482
483	DiagFixItHints.clear();
484	DiagFixItHints.append(storedDiag.fixit_begin(), storedDiag.fixit_end());
485
486	(0) . __assert_fail ("Client && \"DiagnosticConsumer not set!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 486, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Client && "DiagnosticConsumer not set!");
487	Level DiagLevel = storedDiag.getLevel();
488	Diagnostic Info(this, storedDiag.getMessage());
489	Client->HandleDiagnostic(DiagLevel, Info);
490	if (Client->IncludeInDiagnosticCounts()) {
491	if (DiagLevel == DiagnosticsEngine::Warning)
492	++NumWarnings;
493	}
494
495	CurDiagID = std::numeric_limits<unsigned>::max();
496	}
497
498	bool DiagnosticsEngine::EmitCurrentDiagnostic(bool Force) {
499	(0) . __assert_fail ("getClient() && \"DiagnosticClient not set!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 499, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(getClient() && "DiagnosticClient not set!");
500
501	bool Emitted;
502	if (Force) {
503	Diagnostic Info(this);
504
505	// Figure out the diagnostic level of this message.
506	DiagnosticIDs::Level DiagLevel
507	= Diags->getDiagnosticLevel(Info.getID(), Info.getLocation(), *this);
508
509	Emitted = (DiagLevel != DiagnosticIDs::Ignored);
510	if (Emitted) {
511	// Emit the diagnostic regardless of suppression level.
512	Diags->EmitDiag(*this, DiagLevel);
513	}
514	} else {
515	// Process the diagnostic, sending the accumulated information to the
516	// DiagnosticConsumer.
517	Emitted = ProcessDiag();
518	}
519
520	// Clear out the current diagnostic object.
521	Clear();
522
523	// If there was a delayed diagnostic, emit it now.
524	if (!Force && DelayedDiagID)
525	ReportDelayed();
526
527	return Emitted;
528	}
529
530	DiagnosticConsumer::~DiagnosticConsumer() = default;
531
532	void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
533	const Diagnostic &Info) {
534	if (!IncludeInDiagnosticCounts())
535	return;
536
537	if (DiagLevel == DiagnosticsEngine::Warning)
538	++NumWarnings;
539	else if (DiagLevel >= DiagnosticsEngine::Error)
540	++NumErrors;
541	}
542
543	/// ModifierIs - Return true if the specified modifier matches specified string.
544	template <std::size_t StrLen>
545	static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
546	const char (&Str)[StrLen]) {
547	return StrLen-1 == ModifierLen && memcmp(Modifier, Str, StrLen-1) == 0;
548	}
549
550	/// ScanForward - Scans forward, looking for the given character, skipping
551	/// nested clauses and escaped characters.
552	static const char ScanFormat(const char I, const char *E, char Target) {
553	unsigned Depth = 0;
554
555	for ( ; I != E; ++I) {
556	if (Depth == 0 && *I == Target) return I;
557	if (Depth != 0 && *I == '}') Depth--;
558
559	if (*I == '%') {
560	I++;
561	if (I == E) break;
562
563	// Escaped characters get implicitly skipped here.
564
565	// Format specifier.
566	if (!isDigit(I) && !isPunctuation(I)) {
567	for (I++; I != E && !isDigit(I) && I != '{'; I++) ;
568	if (I == E) break;
569	if (*I == '{')
570	Depth++;
571	}
572	}
573	}
574	return E;
575	}
576
577	/// HandleSelectModifier - Handle the integer 'select' modifier. This is used
578	/// like this: %select{foo\|bar\|baz}2. This means that the integer argument
579	/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
580	/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
581	/// This is very useful for certain classes of variant diagnostics.
582	static void HandleSelectModifier(const Diagnostic &DInfo, unsigned ValNo,
583	const char *Argument, unsigned ArgumentLen,
584	SmallVectorImpl<char> &OutStr) {
585	const char *ArgumentEnd = Argument+ArgumentLen;
586
587	// Skip over 'ValNo' \|'s.
588	while (ValNo) {
589	const char *NextVal = ScanFormat(Argument, ArgumentEnd, '\|');
590	(0) . __assert_fail ("NextVal != ArgumentEnd && \"Value for integer select modifier was\" \" larger than the number of options in the diagnostic string!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 591, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
591	(0) . __assert_fail ("NextVal != ArgumentEnd && \"Value for integer select modifier was\" \" larger than the number of options in the diagnostic string!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 591, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> " larger than the number of options in the diagnostic string!");
592	Argument = NextVal+1; // Skip this string.
593	--ValNo;
594	}
595
596	// Get the end of the value. This is either the } or the \|.
597	const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '\|');
598
599	// Recursively format the result of the select clause into the output string.
600	DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
601	}
602
603	/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the
604	/// letter 's' to the string if the value is not 1. This is used in cases like
605	/// this: "you idiot, you have %4 parameter%s4!".
606	static void HandleIntegerSModifier(unsigned ValNo,
607	SmallVectorImpl<char> &OutStr) {
608	if (ValNo != 1)
609	OutStr.push_back('s');
610	}
611
612	/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This
613	/// prints the ordinal form of the given integer, with 1 corresponding
614	/// to the first ordinal. Currently this is hard-coded to use the
615	/// English form.
616	static void HandleOrdinalModifier(unsigned ValNo,
617	SmallVectorImpl<char> &OutStr) {
618	(0) . __assert_fail ("ValNo != 0 && \"ValNo must be strictly positive!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 618, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ValNo != 0 && "ValNo must be strictly positive!");
619
620	llvm::raw_svector_ostream Out(OutStr);
621
622	// We could use text forms for the first N ordinals, but the numeric
623	// forms are actually nicer in diagnostics because they stand out.
624	Out << ValNo << llvm::getOrdinalSuffix(ValNo);
625	}
626
627	/// PluralNumber - Parse an unsigned integer and advance Start.
628	static unsigned PluralNumber(const char &Start, const char End) {
629	// Programming 101: Parse a decimal number :-)
630	unsigned Val = 0;
631	while (Start != End && Start >= '0' && Start <= '9') {
632	Val *= 10;
633	Val += *Start - '0';
634	++Start;
635	}
636	return Val;
637	}
638
639	/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
640	static bool TestPluralRange(unsigned Val, const char &Start, const char End) {
641	if (*Start != '[') {
642	unsigned Ref = PluralNumber(Start, End);
643	return Ref == Val;
644	}
645
646	++Start;
647	unsigned Low = PluralNumber(Start, End);
648	(0) . __assert_fail ("Start == ',' && \"Bad plural expression syntax. expected ,\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 648, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Start == ',' && "Bad plural expression syntax: expected ,");
649	++Start;
650	unsigned High = PluralNumber(Start, End);
651	(0) . __assert_fail ("Start == ']' && \"Bad plural expression syntax. expected )\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 651, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Start == ']' && "Bad plural expression syntax: expected )");
652	++Start;
653	return Low <= Val && Val <= High;
654	}
655
656	/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
657	static bool EvalPluralExpr(unsigned ValNo, const char Start, const char End) {
658	// Empty condition?
659	if (*Start == ':')
660	return true;
661
662	while (true) {
663	char C = *Start;
664	if (C == '%') {
665	// Modulo expression
666	++Start;
667	unsigned Arg = PluralNumber(Start, End);
668	&& "Bad plural expression syntax: expected =");
669	++Start;
670	unsigned ValMod = ValNo % Arg;
671	if (TestPluralRange(ValMod, Start, End))
672	return true;
673	} else {
674	(0) . __assert_fail ("(C == '[' \|\| (C >= '0' && C <= '9')) && \"Bad plural expression syntax. unexpected character\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 675, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((C == '[' \|\| (C >= '0' && C <= '9')) &&
675	(0) . __assert_fail ("(C == '[' \|\| (C >= '0' && C <= '9')) && \"Bad plural expression syntax. unexpected character\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 675, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Bad plural expression syntax: unexpected character");
676	// Range expression
677	if (TestPluralRange(ValNo, Start, End))
678	return true;
679	}
680
681	// Scan for next or-expr part.
682	Start = std::find(Start, End, ',');
683	if (Start == End)
684	break;
685	++Start;
686	}
687	return false;
688	}
689
690	/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
691	/// for complex plural forms, or in languages where all plurals are complex.
692	/// The syntax is: %plural{cond1:form1\|cond2:form2\|:form3}, where condn are
693	/// conditions that are tested in order, the form corresponding to the first
694	/// that applies being emitted. The empty condition is always true, making the
695	/// last form a default case.
696	/// Conditions are simple boolean expressions, where n is the number argument.
697	/// Here are the rules.
698	/// condition := expression \| empty
699	/// empty := -> always true
700	/// expression := numeric [',' expression] -> logical or
701	/// numeric := range -> true if n in range
702	/// \| '%' number '=' range -> true if n % number in range
703	/// range := number
704	/// \| '[' number ',' number ']' -> ranges are inclusive both ends
705	///
706	/// Here are some examples from the GNU gettext manual written in this form:
707	/// English:
708	/// {1:form0\|:form1}
709	/// Latvian:
710	/// {0:form2\|%100=11,%10=0,%10=[2,9]:form1\|:form0}
711	/// Gaeilge:
712	/// {1:form0\|2:form1\|:form2}
713	/// Romanian:
714	/// {1:form0\|0,%100=[1,19]:form1\|:form2}
715	/// Lithuanian:
716	/// {%10=0,%100=[10,19]:form2\|%10=1:form0\|:form1}
717	/// Russian (requires repeated form):
718	/// {%100=[11,14]:form2\|%10=1:form0\|%10=[2,4]:form1\|:form2}
719	/// Slovak
720	/// {1:form0\|[2,4]:form1\|:form2}
721	/// Polish (requires repeated form):
722	/// {1:form0\|%100=[10,20]:form2\|%10=[2,4]:form1\|:form2}
723	static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo,
724	const char *Argument, unsigned ArgumentLen,
725	SmallVectorImpl<char> &OutStr) {
726	const char *ArgumentEnd = Argument + ArgumentLen;
727	while (true) {
728	(0) . __assert_fail ("Argument < ArgumentEnd && \"Plural expression didn't match.\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 728, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Argument < ArgumentEnd && "Plural expression didn't match.");
729	const char *ExprEnd = Argument;
730	while (*ExprEnd != ':') {
731	(0) . __assert_fail ("ExprEnd != ArgumentEnd && \"Plural missing expression end\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 731, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
732	++ExprEnd;
733	}
734	if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
735	Argument = ExprEnd + 1;
736	ExprEnd = ScanFormat(Argument, ArgumentEnd, '\|');
737
738	// Recursively format the result of the plural clause into the
739	// output string.
740	DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
741	return;
742	}
743	Argument = ScanFormat(Argument, ArgumentEnd - 1, '\|') + 1;
744	}
745	}
746
747	/// Returns the friendly description for a token kind that will appear
748	/// without quotes in diagnostic messages. These strings may be translatable in
749	/// future.
750	static const char *getTokenDescForDiagnostic(tok::TokenKind Kind) {
751	switch (Kind) {
752	case tok::identifier:
753	return "identifier";
754	default:
755	return nullptr;
756	}
757	}
758
759	/// FormatDiagnostic - Format this diagnostic into a string, substituting the
760	/// formal arguments into the %0 slots. The result is appended onto the Str
761	/// array.
762	void Diagnostic::
763	FormatDiagnostic(SmallVectorImpl<char> &OutStr) const {
764	if (!StoredDiagMessage.empty()) {
765	OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end());
766	return;
767	}
768
769	StringRef Diag =
770	getDiags()->getDiagnosticIDs()->getDescription(getID());
771
772	FormatDiagnostic(Diag.begin(), Diag.end(), OutStr);
773	}
774
775	void Diagnostic::
776	FormatDiagnostic(const char DiagStr, const char DiagEnd,
777	SmallVectorImpl<char> &OutStr) const {
778	// When the diagnostic string is only "%0", the entire string is being given
779	// by an outside source. Remove unprintable characters from this string
780	// and skip all the other string processing.
781	if (DiagEnd - DiagStr == 2 &&
782	StringRef(DiagStr, DiagEnd - DiagStr).equals("%0") &&
783	getArgKind(0) == DiagnosticsEngine::ak_std_string) {
784	const std::string &S = getArgStdStr(0);
785	for (char c : S) {
786	if (llvm::sys::locale::isPrint(c) \|\| c == '\t') {
787	OutStr.push_back(c);
788	}
789	}
790	return;
791	}
792
793	/// FormattedArgs - Keep track of all of the arguments formatted by
794	/// ConvertArgToString and pass them into subsequent calls to
795	/// ConvertArgToString, allowing the implementation to avoid redundancies in
796	/// obvious cases.
797	SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs;
798
799	/// QualTypeVals - Pass a vector of arrays so that QualType names can be
800	/// compared to see if more information is needed to be printed.
801	SmallVector<intptr_t, 2> QualTypeVals;
802	SmallVector<char, 64> Tree;
803
804	for (unsigned i = 0, e = getNumArgs(); i < e; ++i)
805	if (getArgKind(i) == DiagnosticsEngine::ak_qualtype)
806	QualTypeVals.push_back(getRawArg(i));
807
808	while (DiagStr != DiagEnd) {
809	if (DiagStr[0] != '%') {
810	// Append non-%0 substrings to Str if we have one.
811	const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
812	OutStr.append(DiagStr, StrEnd);
813	DiagStr = StrEnd;
814	continue;
815	} else if (isPunctuation(DiagStr[1])) {
816	OutStr.push_back(DiagStr[1]); // %% -> %.
817	DiagStr += 2;
818	continue;
819	}
820
821	// Skip the %.
822	++DiagStr;
823
824	// This must be a placeholder for a diagnostic argument. The format for a
825	// placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
826	// The digit is a number from 0-9 indicating which argument this comes from.
827	// The modifier is a string of digits from the set [-a-z]+, arguments is a
828	// brace enclosed string.
829	const char Modifier = nullptr, Argument = nullptr;
830	unsigned ModifierLen = 0, ArgumentLen = 0;
831
832	// Check to see if we have a modifier. If so eat it.
833	if (!isDigit(DiagStr[0])) {
834	Modifier = DiagStr;
835	while (DiagStr[0] == '-' \|\|
836	(DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
837	++DiagStr;
838	ModifierLen = DiagStr-Modifier;
839
840	// If we have an argument, get it next.
841	if (DiagStr[0] == '{') {
842	++DiagStr; // Skip {.
843	Argument = DiagStr;
844
845	DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
846	(0) . __assert_fail ("DiagStr != DiagEnd && \"Mismatched {}'s in diagnostic string!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 846, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!");
847	ArgumentLen = DiagStr-Argument;
848	++DiagStr; // Skip }.
849	}
850	}
851
852	(0) . __assert_fail ("isDigit(DiagStr) && \"Invalid format for argument in diagnostic\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 852, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(isDigit(DiagStr) && "Invalid format for argument in diagnostic");
853	unsigned ArgNo = *DiagStr++ - '0';
854
855	// Only used for type diffing.
856	unsigned ArgNo2 = ArgNo;
857
858	DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo);
859	if (ModifierIs(Modifier, ModifierLen, "diff")) {
860	(0) . __assert_fail ("DiagStr == ',' && isDigit((DiagStr + 1)) && \"Invalid format for diff modifier\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 861, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(DiagStr == ',' && isDigit((DiagStr + 1)) &&
861	(0) . __assert_fail ("DiagStr == ',' && isDigit((DiagStr + 1)) && \"Invalid format for diff modifier\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 861, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Invalid format for diff modifier");
862	++DiagStr; // Comma.
863	ArgNo2 = *DiagStr++ - '0';
864	DiagnosticsEngine::ArgumentKind Kind2 = getArgKind(ArgNo2);
865	if (Kind == DiagnosticsEngine::ak_qualtype &&
866	Kind2 == DiagnosticsEngine::ak_qualtype)
867	Kind = DiagnosticsEngine::ak_qualtype_pair;
868	else {
869	// %diff only supports QualTypes. For other kinds of arguments,
870	// use the default printing. For example, if the modifier is:
871	// "%diff{compare $ to $\|other text}1,2"
872	// treat it as:
873	// "compare %1 to %2"
874	const char *ArgumentEnd = Argument + ArgumentLen;
875	const char *Pipe = ScanFormat(Argument, ArgumentEnd, '\|');
876	(0) . __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '\|') == ArgumentEnd && \"Found too many '\|'s in a %diff modifier!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 877, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ScanFormat(Pipe + 1, ArgumentEnd, '\|') == ArgumentEnd &&
877	(0) . __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '\|') == ArgumentEnd && \"Found too many '\|'s in a %diff modifier!\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 877, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Found too many '\|'s in a %diff modifier!");
878	const char *FirstDollar = ScanFormat(Argument, Pipe, '$');
879	const char *SecondDollar = ScanFormat(FirstDollar + 1, Pipe, '$');
880	const char ArgStr1[] = { '%', static_cast<char>('0' + ArgNo) };
881	const char ArgStr2[] = { '%', static_cast<char>('0' + ArgNo2) };
882	FormatDiagnostic(Argument, FirstDollar, OutStr);
883	FormatDiagnostic(ArgStr1, ArgStr1 + 2, OutStr);
884	FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
885	FormatDiagnostic(ArgStr2, ArgStr2 + 2, OutStr);
886	FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
887	continue;
888	}
889	}
890
891	switch (Kind) {
892	// ---- STRINGS ----
893	case DiagnosticsEngine::ak_std_string: {
894	const std::string &S = getArgStdStr(ArgNo);
895	(0) . __assert_fail ("ModifierLen == 0 && \"No modifiers for strings yet\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 895, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ModifierLen == 0 && "No modifiers for strings yet");
896	OutStr.append(S.begin(), S.end());
897	break;
898	}
899	case DiagnosticsEngine::ak_c_string: {
900	const char *S = getArgCStr(ArgNo);
901	(0) . __assert_fail ("ModifierLen == 0 && \"No modifiers for strings yet\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 901, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ModifierLen == 0 && "No modifiers for strings yet");
902
903	// Don't crash if get passed a null pointer by accident.
904	if (!S)
905	S = "(null)";
906
907	OutStr.append(S, S + strlen(S));
908	break;
909	}
910	// ---- INTEGERS ----
911	case DiagnosticsEngine::ak_sint: {
912	int Val = getArgSInt(ArgNo);
913
914	if (ModifierIs(Modifier, ModifierLen, "select")) {
915	HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen,
916	OutStr);
917	} else if (ModifierIs(Modifier, ModifierLen, "s")) {
918	HandleIntegerSModifier(Val, OutStr);
919	} else if (ModifierIs(Modifier, ModifierLen, "plural")) {
920	HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
921	OutStr);
922	} else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
923	HandleOrdinalModifier((unsigned)Val, OutStr);
924	} else {
925	(0) . __assert_fail ("ModifierLen == 0 && \"Unknown integer modifier\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 925, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ModifierLen == 0 && "Unknown integer modifier");
926	llvm::raw_svector_ostream(OutStr) << Val;
927	}
928	break;
929	}
930	case DiagnosticsEngine::ak_uint: {
931	unsigned Val = getArgUInt(ArgNo);
932
933	if (ModifierIs(Modifier, ModifierLen, "select")) {
934	HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
935	} else if (ModifierIs(Modifier, ModifierLen, "s")) {
936	HandleIntegerSModifier(Val, OutStr);
937	} else if (ModifierIs(Modifier, ModifierLen, "plural")) {
938	HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
939	OutStr);
940	} else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
941	HandleOrdinalModifier(Val, OutStr);
942	} else {
943	(0) . __assert_fail ("ModifierLen == 0 && \"Unknown integer modifier\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 943, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ModifierLen == 0 && "Unknown integer modifier");
944	llvm::raw_svector_ostream(OutStr) << Val;
945	}
946	break;
947	}
948	// ---- TOKEN SPELLINGS ----
949	case DiagnosticsEngine::ak_tokenkind: {
950	tok::TokenKind Kind = static_cast<tok::TokenKind>(getRawArg(ArgNo));
951	(0) . __assert_fail ("ModifierLen == 0 && \"No modifiers for token kinds yet\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 951, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ModifierLen == 0 && "No modifiers for token kinds yet");
952
953	llvm::raw_svector_ostream Out(OutStr);
954	if (const char *S = tok::getPunctuatorSpelling(Kind))
955	// Quoted token spelling for punctuators.
956	Out << '\'' << S << '\'';
957	else if (const char *S = tok::getKeywordSpelling(Kind))
958	// Unquoted token spelling for keywords.
959	Out << S;
960	else if (const char *S = getTokenDescForDiagnostic(Kind))
961	// Unquoted translatable token name.
962	Out << S;
963	else if (const char *S = tok::getTokenName(Kind))
964	// Debug name, shouldn't appear in user-facing diagnostics.
965	Out << '<' << S << '>';
966	else
967	Out << "(null)";
968	break;
969	}
970	// ---- NAMES and TYPES ----
971	case DiagnosticsEngine::ak_identifierinfo: {
972	const IdentifierInfo *II = getArgIdentifier(ArgNo);
973	(0) . __assert_fail ("ModifierLen == 0 && \"No modifiers for strings yet\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 973, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(ModifierLen == 0 && "No modifiers for strings yet");
974
975	// Don't crash if get passed a null pointer by accident.
976	if (!II) {
977	const char *S = "(null)";
978	OutStr.append(S, S + strlen(S));
979	continue;
980	}
981
982	llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
983	break;
984	}
985	case DiagnosticsEngine::ak_qual:
986	case DiagnosticsEngine::ak_qualtype:
987	case DiagnosticsEngine::ak_declarationname:
988	case DiagnosticsEngine::ak_nameddecl:
989	case DiagnosticsEngine::ak_nestednamespec:
990	case DiagnosticsEngine::ak_declcontext:
991	case DiagnosticsEngine::ak_attr:
992	getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
993	StringRef(Modifier, ModifierLen),
994	StringRef(Argument, ArgumentLen),
995	FormattedArgs,
996	OutStr, QualTypeVals);
997	break;
998	case DiagnosticsEngine::ak_qualtype_pair: {
999	// Create a struct with all the info needed for printing.
1000	TemplateDiffTypes TDT;
1001	TDT.FromType = getRawArg(ArgNo);
1002	TDT.ToType = getRawArg(ArgNo2);
1003	TDT.ElideType = getDiags()->ElideType;
1004	TDT.ShowColors = getDiags()->ShowColors;
1005	TDT.TemplateDiffUsed = false;
1006	intptr_t val = reinterpret_cast<intptr_t>(&TDT);
1007
1008	const char *ArgumentEnd = Argument + ArgumentLen;
1009	const char *Pipe = ScanFormat(Argument, ArgumentEnd, '\|');
1010
1011	// Print the tree. If this diagnostic already has a tree, skip the
1012	// second tree.
1013	if (getDiags()->PrintTemplateTree && Tree.empty()) {
1014	TDT.PrintFromType = true;
1015	TDT.PrintTree = true;
1016	getDiags()->ConvertArgToString(Kind, val,
1017	StringRef(Modifier, ModifierLen),
1018	StringRef(Argument, ArgumentLen),
1019	FormattedArgs,
1020	Tree, QualTypeVals);
1021	// If there is no tree information, fall back to regular printing.
1022	if (!Tree.empty()) {
1023	FormatDiagnostic(Pipe + 1, ArgumentEnd, OutStr);
1024	break;
1025	}
1026	}
1027
1028	// Non-tree printing, also the fall-back when tree printing fails.
1029	// The fall-back is triggered when the types compared are not templates.
1030	const char *FirstDollar = ScanFormat(Argument, ArgumentEnd, '$');
1031	const char *SecondDollar = ScanFormat(FirstDollar + 1, ArgumentEnd, '$');
1032
1033	// Append before text
1034	FormatDiagnostic(Argument, FirstDollar, OutStr);
1035
1036	// Append first type
1037	TDT.PrintTree = false;
1038	TDT.PrintFromType = true;
1039	getDiags()->ConvertArgToString(Kind, val,
1040	StringRef(Modifier, ModifierLen),
1041	StringRef(Argument, ArgumentLen),
1042	FormattedArgs,
1043	OutStr, QualTypeVals);
1044	if (!TDT.TemplateDiffUsed)
1045	FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
1046	TDT.FromType));
1047
1048	// Append middle text
1049	FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
1050
1051	// Append second type
1052	TDT.PrintFromType = false;
1053	getDiags()->ConvertArgToString(Kind, val,
1054	StringRef(Modifier, ModifierLen),
1055	StringRef(Argument, ArgumentLen),
1056	FormattedArgs,
1057	OutStr, QualTypeVals);
1058	if (!TDT.TemplateDiffUsed)
1059	FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
1060	TDT.ToType));
1061
1062	// Append end text
1063	FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
1064	break;
1065	}
1066	}
1067
1068	// Remember this argument info for subsequent formatting operations. Turn
1069	// std::strings into a null terminated string to make it be the same case as
1070	// all the other ones.
1071	if (Kind == DiagnosticsEngine::ak_qualtype_pair)
1072	continue;
1073	else if (Kind != DiagnosticsEngine::ak_std_string)
1074	FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
1075	else
1076	FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string,
1077	(intptr_t)getArgStdStr(ArgNo).c_str()));
1078	}
1079
1080	// Append the type tree to the end of the diagnostics.
1081	OutStr.append(Tree.begin(), Tree.end());
1082	}
1083
1084	StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
1085	StringRef Message)
1086	: ID(ID), Level(Level), Message(Message) {}
1087
1088	StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level,
1089	const Diagnostic &Info)
1090	: ID(Info.getID()), Level(Level) {
1091	(0) . __assert_fail ("(Info.getLocation().isInvalid() \|\| Info.hasSourceManager()) && \"Valid source location without setting a source manager for diagnostic\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 1092, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((Info.getLocation().isInvalid() \|\| Info.hasSourceManager()) &&
1092	(0) . __assert_fail ("(Info.getLocation().isInvalid() \|\| Info.hasSourceManager()) && \"Valid source location without setting a source manager for diagnostic\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 1092, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "Valid source location without setting a source manager for diagnostic");
1093	if (Info.getLocation().isValid())
1094	Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager());
1095	SmallString<64> Message;
1096	Info.FormatDiagnostic(Message);
1097	this->Message.assign(Message.begin(), Message.end());
1098	this->Ranges.assign(Info.getRanges().begin(), Info.getRanges().end());
1099	this->FixIts.assign(Info.getFixItHints().begin(), Info.getFixItHints().end());
1100	}
1101
1102	StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
1103	StringRef Message, FullSourceLoc Loc,
1104	ArrayRef<CharSourceRange> Ranges,
1105	ArrayRef<FixItHint> FixIts)
1106	: ID(ID), Level(Level), Loc(Loc), Message(Message),
1107	Ranges(Ranges.begin(), Ranges.end()), FixIts(FixIts.begin(), FixIts.end())
1108	{
1109	}
1110
1111	/// IncludeInDiagnosticCounts - This method (whose default implementation
1112	/// returns true) indicates whether the diagnostics handled by this
1113	/// DiagnosticConsumer should be included in the number of diagnostics
1114	/// reported by DiagnosticsEngine.
1115	bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; }
1116
1117	void IgnoringDiagConsumer::anchor() {}
1118
1119	ForwardingDiagnosticConsumer::~ForwardingDiagnosticConsumer() = default;
1120
1121	void ForwardingDiagnosticConsumer::HandleDiagnostic(
1122	DiagnosticsEngine::Level DiagLevel,
1123	const Diagnostic &Info) {
1124	Target.HandleDiagnostic(DiagLevel, Info);
1125	}
1126
1127	void ForwardingDiagnosticConsumer::clear() {
1128	DiagnosticConsumer::clear();
1129	Target.clear();
1130	}
1131
1132	bool ForwardingDiagnosticConsumer::IncludeInDiagnosticCounts() const {
1133	return Target.IncludeInDiagnosticCounts();
1134	}
1135
1136	PartialDiagnostic::StorageAllocator::StorageAllocator() {
1137	for (unsigned I = 0; I != NumCached; ++I)
1138	FreeList[I] = Cached + I;
1139	NumFreeListEntries = NumCached;
1140	}
1141
1142	PartialDiagnostic::StorageAllocator::~StorageAllocator() {
1143	// Don't assert if we are in a CrashRecovery context, as this invariant may
1144	// be invalidated during a crash.
1145	(0) . __assert_fail ("(NumFreeListEntries == NumCached \|\| llvm..CrashRecoveryContext..isRecoveringFromCrash()) && \"A partial is on the lam\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 1147, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((NumFreeListEntries == NumCached \|\|
1146	(0) . __assert_fail ("(NumFreeListEntries == NumCached \|\| llvm..CrashRecoveryContext..isRecoveringFromCrash()) && \"A partial is on the lam\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 1147, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> llvm::CrashRecoveryContext::isRecoveringFromCrash()) &&
1147	(0) . __assert_fail ("(NumFreeListEntries == NumCached \|\| llvm..CrashRecoveryContext..isRecoveringFromCrash()) && \"A partial is on the lam\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/Diagnostic.cpp", 1147, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "A partial is on the lam");
1148	}
1149
1150	char DiagnosticError::ID;
1151