Bug Summary

File:tools/clang/lib/Basic/Diagnostic.cpp
Warning:line 581, column 31
Division by zero

Annotated Source Code

1//===--- Diagnostic.cpp - C Language Family Diagnostic Handling -----------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file implements the Diagnostic-related interfaces.
11//
12//===----------------------------------------------------------------------===//
13
14#include "clang/Basic/CharInfo.h"
15#include "clang/Basic/Diagnostic.h"
16#include "clang/Basic/DiagnosticOptions.h"
17#include "clang/Basic/IdentifierTable.h"
18#include "clang/Basic/PartialDiagnostic.h"
19#include "clang/Basic/SourceManager.h"
20#include "llvm/ADT/SmallString.h"
21#include "llvm/ADT/StringExtras.h"
22#include "llvm/Support/CrashRecoveryContext.h"
23#include "llvm/Support/Locale.h"
24#include "llvm/Support/raw_ostream.h"
25
26using namespace clang;
27
28const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
29 DiagNullabilityKind nullability) {
30 StringRef string;
31 switch (nullability.first) {
32 case NullabilityKind::NonNull:
33 string = nullability.second ? "'nonnull'" : "'_Nonnull'";
34 break;
35
36 case NullabilityKind::Nullable:
37 string = nullability.second ? "'nullable'" : "'_Nullable'";
38 break;
39
40 case NullabilityKind::Unspecified:
41 string = nullability.second ? "'null_unspecified'" : "'_Null_unspecified'";
42 break;
43 }
44
45 DB.AddString(string);
46 return DB;
47}
48
49static void DummyArgToStringFn(DiagnosticsEngine::ArgumentKind AK, intptr_t QT,
50 StringRef Modifier, StringRef Argument,
51 ArrayRef<DiagnosticsEngine::ArgumentValue> PrevArgs,
52 SmallVectorImpl<char> &Output,
53 void *Cookie,
54 ArrayRef<intptr_t> QualTypeVals) {
55 StringRef Str = "<can't format argument>";
56 Output.append(Str.begin(), Str.end());
57}
58
59DiagnosticsEngine::DiagnosticsEngine(IntrusiveRefCntPtr<DiagnosticIDs> diags,
60 DiagnosticOptions *DiagOpts,
61 DiagnosticConsumer *client,
62 bool ShouldOwnClient)
63 : Diags(std::move(diags)), DiagOpts(DiagOpts), Client(nullptr),
64 SourceMgr(nullptr) {
65 setClient(client, ShouldOwnClient);
66 ArgToStringFn = DummyArgToStringFn;
67 ArgToStringCookie = nullptr;
68
69 AllExtensionsSilenced = 0;
70 IgnoreAllWarnings = false;
71 WarningsAsErrors = false;
72 EnableAllWarnings = false;
73 ErrorsAsFatal = false;
74 FatalsAsError = false;
75 SuppressSystemWarnings = false;
76 SuppressAllDiagnostics = false;
77 ElideType = true;
78 PrintTemplateTree = false;
79 ShowColors = false;
80 ShowOverloads = Ovl_All;
81 ExtBehavior = diag::Severity::Ignored;
82
83 ErrorLimit = 0;
84 TemplateBacktraceLimit = 0;
85 ConstexprBacktraceLimit = 0;
86
87 Reset();
88}
89
90DiagnosticsEngine::~DiagnosticsEngine() {
91 // If we own the diagnostic client, destroy it first so that it can access the
92 // engine from its destructor.
93 setClient(nullptr);
94}
95
96void DiagnosticsEngine::setClient(DiagnosticConsumer *client,
97 bool ShouldOwnClient) {
98 Owner.reset(ShouldOwnClient ? client : nullptr);
99 Client = client;
100}
101
102void DiagnosticsEngine::pushMappings(SourceLocation Loc) {
103 DiagStateOnPushStack.push_back(GetCurDiagState());
104}
105
106bool DiagnosticsEngine::popMappings(SourceLocation Loc) {
107 if (DiagStateOnPushStack.empty())
108 return false;
109
110 if (DiagStateOnPushStack.back() != GetCurDiagState()) {
111 // State changed at some point between push/pop.
112 PushDiagStatePoint(DiagStateOnPushStack.back(), Loc);
113 }
114 DiagStateOnPushStack.pop_back();
115 return true;
116}
117
118void DiagnosticsEngine::Reset() {
119 ErrorOccurred = false;
120 UncompilableErrorOccurred = false;
121 FatalErrorOccurred = false;
122 UnrecoverableErrorOccurred = false;
123
124 NumWarnings = 0;
125 NumErrors = 0;
126 TrapNumErrorsOccurred = 0;
127 TrapNumUnrecoverableErrorsOccurred = 0;
128
129 CurDiagID = ~0U;
130 LastDiagLevel = DiagnosticIDs::Ignored;
131 DelayedDiagID = 0;
132
133 // Clear state related to #pragma diagnostic.
134 DiagStates.clear();
135 DiagStatesByLoc.clear();
136 DiagStateOnPushStack.clear();
137
138 // Create a DiagState and DiagStatePoint representing diagnostic changes
139 // through command-line.
140 DiagStates.emplace_back();
141 DiagStatesByLoc.appendFirst(&DiagStates.back());
142}
143
144void DiagnosticsEngine::SetDelayedDiagnostic(unsigned DiagID, StringRef Arg1,
145 StringRef Arg2) {
146 if (DelayedDiagID)
147 return;
148
149 DelayedDiagID = DiagID;
150 DelayedDiagArg1 = Arg1.str();
151 DelayedDiagArg2 = Arg2.str();
152}
153
154void DiagnosticsEngine::ReportDelayed() {
155 Report(DelayedDiagID) << DelayedDiagArg1 << DelayedDiagArg2;
156 DelayedDiagID = 0;
157 DelayedDiagArg1.clear();
158 DelayedDiagArg2.clear();
159}
160
161void DiagnosticsEngine::DiagStateMap::appendFirst(
162 DiagState *State) {
163 assert(Files.empty() && "not first")((Files.empty() && "not first") ? static_cast<void
> (0) : __assert_fail ("Files.empty() && \"not first\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 163, __PRETTY_FUNCTION__))
;
164 FirstDiagState = CurDiagState = State;
165 CurDiagStateLoc = SourceLocation();
166}
167
168void DiagnosticsEngine::DiagStateMap::append(SourceManager &SrcMgr,
169 SourceLocation Loc,
170 DiagState *State) {
171 CurDiagState = State;
172 CurDiagStateLoc = Loc;
173
174 std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedLoc(Loc);
175 unsigned Offset = Decomp.second;
176 for (File *F = getFile(SrcMgr, Decomp.first); F;
177 Offset = F->ParentOffset, F = F->Parent) {
178 F->HasLocalTransitions = true;
179 auto &Last = F->StateTransitions.back();
180 assert(Last.Offset <= Offset && "state transitions added out of order")((Last.Offset <= Offset && "state transitions added out of order"
) ? static_cast<void> (0) : __assert_fail ("Last.Offset <= Offset && \"state transitions added out of order\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 180, __PRETTY_FUNCTION__))
;
181
182 if (Last.Offset == Offset) {
183 if (Last.State == State)
184 break;
185 Last.State = State;
186 continue;
187 }
188
189 F->StateTransitions.push_back({State, Offset});
190 }
191}
192
193DiagnosticsEngine::DiagState *
194DiagnosticsEngine::DiagStateMap::lookup(SourceManager &SrcMgr,
195 SourceLocation Loc) const {
196 // Common case: we have not seen any diagnostic pragmas.
197 if (Files.empty())
198 return FirstDiagState;
199
200 std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedLoc(Loc);
201 const File *F = getFile(SrcMgr, Decomp.first);
202 return F->lookup(Decomp.second);
203}
204
205DiagnosticsEngine::DiagState *
206DiagnosticsEngine::DiagStateMap::File::lookup(unsigned Offset) const {
207 auto OnePastIt = std::upper_bound(
208 StateTransitions.begin(), StateTransitions.end(), Offset,
209 [](unsigned Offset, const DiagStatePoint &P) {
210 return Offset < P.Offset;
211 });
212 assert(OnePastIt != StateTransitions.begin() && "missing initial state")((OnePastIt != StateTransitions.begin() && "missing initial state"
) ? static_cast<void> (0) : __assert_fail ("OnePastIt != StateTransitions.begin() && \"missing initial state\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 212, __PRETTY_FUNCTION__))
;
213 return OnePastIt[-1].State;
214}
215
216DiagnosticsEngine::DiagStateMap::File *
217DiagnosticsEngine::DiagStateMap::getFile(SourceManager &SrcMgr,
218 FileID ID) const {
219 // Get or insert the File for this ID.
220 auto Range = Files.equal_range(ID);
221 if (Range.first != Range.second)
222 return &Range.first->second;
223 auto &F = Files.insert(Range.first, std::make_pair(ID, File()))->second;
224
225 // We created a new File; look up the diagnostic state at the start of it and
226 // initialize it.
227 if (ID.isValid()) {
228 std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedIncludedLoc(ID);
229 F.Parent = getFile(SrcMgr, Decomp.first);
230 F.ParentOffset = Decomp.second;
231 F.StateTransitions.push_back({F.Parent->lookup(Decomp.second), 0});
232 } else {
233 // This is the (imaginary) root file into which we pretend all top-level
234 // files are included; it descends from the initial state.
235 //
236 // FIXME: This doesn't guarantee that we use the same ordering as
237 // isBeforeInTranslationUnit in the cases where someone invented another
238 // top-level file and added diagnostic pragmas to it. See the code at the
239 // end of isBeforeInTranslationUnit for the quirks it deals with.
240 F.StateTransitions.push_back({FirstDiagState, 0});
241 }
242 return &F;
243}
244
245void DiagnosticsEngine::PushDiagStatePoint(DiagState *State,
246 SourceLocation Loc) {
247 assert(Loc.isValid() && "Adding invalid loc point")((Loc.isValid() && "Adding invalid loc point") ? static_cast
<void> (0) : __assert_fail ("Loc.isValid() && \"Adding invalid loc point\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 247, __PRETTY_FUNCTION__))
;
248 DiagStatesByLoc.append(*SourceMgr, Loc, State);
249}
250
251void DiagnosticsEngine::setSeverity(diag::kind Diag, diag::Severity Map,
252 SourceLocation L) {
253 assert(Diag < diag::DIAG_UPPER_LIMIT &&((Diag < diag::DIAG_UPPER_LIMIT && "Can only map builtin diagnostics"
) ? static_cast<void> (0) : __assert_fail ("Diag < diag::DIAG_UPPER_LIMIT && \"Can only map builtin diagnostics\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 254, __PRETTY_FUNCTION__))
254 "Can only map builtin diagnostics")((Diag < diag::DIAG_UPPER_LIMIT && "Can only map builtin diagnostics"
) ? static_cast<void> (0) : __assert_fail ("Diag < diag::DIAG_UPPER_LIMIT && \"Can only map builtin diagnostics\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 254, __PRETTY_FUNCTION__))
;
255 assert((Diags->isBuiltinWarningOrExtension(Diag) ||(((Diags->isBuiltinWarningOrExtension(Diag) || (Map == diag
::Severity::Fatal || Map == diag::Severity::Error)) &&
"Cannot map errors into warnings!") ? static_cast<void>
(0) : __assert_fail ("(Diags->isBuiltinWarningOrExtension(Diag) || (Map == diag::Severity::Fatal || Map == diag::Severity::Error)) && \"Cannot map errors into warnings!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 257, __PRETTY_FUNCTION__))
256 (Map == diag::Severity::Fatal || Map == diag::Severity::Error)) &&(((Diags->isBuiltinWarningOrExtension(Diag) || (Map == diag
::Severity::Fatal || Map == diag::Severity::Error)) &&
"Cannot map errors into warnings!") ? static_cast<void>
(0) : __assert_fail ("(Diags->isBuiltinWarningOrExtension(Diag) || (Map == diag::Severity::Fatal || Map == diag::Severity::Error)) && \"Cannot map errors into warnings!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 257, __PRETTY_FUNCTION__))
257 "Cannot map errors into warnings!")(((Diags->isBuiltinWarningOrExtension(Diag) || (Map == diag
::Severity::Fatal || Map == diag::Severity::Error)) &&
"Cannot map errors into warnings!") ? static_cast<void>
(0) : __assert_fail ("(Diags->isBuiltinWarningOrExtension(Diag) || (Map == diag::Severity::Fatal || Map == diag::Severity::Error)) && \"Cannot map errors into warnings!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 257, __PRETTY_FUNCTION__))
;
258 assert((L.isInvalid() || SourceMgr) && "No SourceMgr for valid location")(((L.isInvalid() || SourceMgr) && "No SourceMgr for valid location"
) ? static_cast<void> (0) : __assert_fail ("(L.isInvalid() || SourceMgr) && \"No SourceMgr for valid location\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 258, __PRETTY_FUNCTION__))
;
259
260 // Don't allow a mapping to a warning override an error/fatal mapping.
261 bool WasUpgradedFromWarning = false;
262 if (Map == diag::Severity::Warning) {
263 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
264 if (Info.getSeverity() == diag::Severity::Error ||
265 Info.getSeverity() == diag::Severity::Fatal) {
266 Map = Info.getSeverity();
267 WasUpgradedFromWarning = true;
268 }
269 }
270 DiagnosticMapping Mapping = makeUserMapping(Map, L);
271 Mapping.setUpgradedFromWarning(WasUpgradedFromWarning);
272
273 // Common case; setting all the diagnostics of a group in one place.
274 if ((L.isInvalid() || L == DiagStatesByLoc.getCurDiagStateLoc()) &&
275 DiagStatesByLoc.getCurDiagState()) {
276 // FIXME: This is theoretically wrong: if the current state is shared with
277 // some other location (via push/pop) we will change the state for that
278 // other location as well. This cannot currently happen, as we can't update
279 // the diagnostic state at the same location at which we pop.
280 DiagStatesByLoc.getCurDiagState()->setMapping(Diag, Mapping);
281 return;
282 }
283
284 // A diagnostic pragma occurred, create a new DiagState initialized with
285 // the current one and a new DiagStatePoint to record at which location
286 // the new state became active.
287 DiagStates.push_back(*GetCurDiagState());
288 DiagStates.back().setMapping(Diag, Mapping);
289 PushDiagStatePoint(&DiagStates.back(), L);
290}
291
292bool DiagnosticsEngine::setSeverityForGroup(diag::Flavor Flavor,
293 StringRef Group, diag::Severity Map,
294 SourceLocation Loc) {
295 // Get the diagnostics in this group.
296 SmallVector<diag::kind, 256> GroupDiags;
297 if (Diags->getDiagnosticsInGroup(Flavor, Group, GroupDiags))
298 return true;
299
300 // Set the mapping.
301 for (diag::kind Diag : GroupDiags)
302 setSeverity(Diag, Map, Loc);
303
304 return false;
305}
306
307bool DiagnosticsEngine::setDiagnosticGroupWarningAsError(StringRef Group,
308 bool Enabled) {
309 // If we are enabling this feature, just set the diagnostic mappings to map to
310 // errors.
311 if (Enabled)
312 return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
313 diag::Severity::Error);
314
315 // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
316 // potentially downgrade anything already mapped to be a warning.
317
318 // Get the diagnostics in this group.
319 SmallVector<diag::kind, 8> GroupDiags;
320 if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
321 GroupDiags))
322 return true;
323
324 // Perform the mapping change.
325 for (diag::kind Diag : GroupDiags) {
326 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
327
328 if (Info.getSeverity() == diag::Severity::Error ||
329 Info.getSeverity() == diag::Severity::Fatal)
330 Info.setSeverity(diag::Severity::Warning);
331
332 Info.setNoWarningAsError(true);
333 }
334
335 return false;
336}
337
338bool DiagnosticsEngine::setDiagnosticGroupErrorAsFatal(StringRef Group,
339 bool Enabled) {
340 // If we are enabling this feature, just set the diagnostic mappings to map to
341 // fatal errors.
342 if (Enabled)
343 return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
344 diag::Severity::Fatal);
345
346 // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
347 // potentially downgrade anything already mapped to be an error.
348
349 // Get the diagnostics in this group.
350 SmallVector<diag::kind, 8> GroupDiags;
351 if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
352 GroupDiags))
353 return true;
354
355 // Perform the mapping change.
356 for (diag::kind Diag : GroupDiags) {
357 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
358
359 if (Info.getSeverity() == diag::Severity::Fatal)
360 Info.setSeverity(diag::Severity::Error);
361
362 Info.setNoErrorAsFatal(true);
363 }
364
365 return false;
366}
367
368void DiagnosticsEngine::setSeverityForAll(diag::Flavor Flavor,
369 diag::Severity Map,
370 SourceLocation Loc) {
371 // Get all the diagnostics.
372 SmallVector<diag::kind, 64> AllDiags;
373 Diags->getAllDiagnostics(Flavor, AllDiags);
374
375 // Set the mapping.
376 for (diag::kind Diag : AllDiags)
377 if (Diags->isBuiltinWarningOrExtension(Diag))
378 setSeverity(Diag, Map, Loc);
379}
380
381void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) {
382 assert(CurDiagID == ~0U && "Multiple diagnostics in flight at once!")((CurDiagID == ~0U && "Multiple diagnostics in flight at once!"
) ? static_cast<void> (0) : __assert_fail ("CurDiagID == ~0U && \"Multiple diagnostics in flight at once!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 382, __PRETTY_FUNCTION__))
;
383
384 CurDiagLoc = storedDiag.getLocation();
385 CurDiagID = storedDiag.getID();
386 NumDiagArgs = 0;
387
388 DiagRanges.clear();
389 DiagRanges.append(storedDiag.range_begin(), storedDiag.range_end());
390
391 DiagFixItHints.clear();
392 DiagFixItHints.append(storedDiag.fixit_begin(), storedDiag.fixit_end());
393
394 assert(Client && "DiagnosticConsumer not set!")((Client && "DiagnosticConsumer not set!") ? static_cast
<void> (0) : __assert_fail ("Client && \"DiagnosticConsumer not set!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 394, __PRETTY_FUNCTION__))
;
395 Level DiagLevel = storedDiag.getLevel();
396 Diagnostic Info(this, storedDiag.getMessage());
397 Client->HandleDiagnostic(DiagLevel, Info);
398 if (Client->IncludeInDiagnosticCounts()) {
399 if (DiagLevel == DiagnosticsEngine::Warning)
400 ++NumWarnings;
401 }
402
403 CurDiagID = ~0U;
404}
405
406bool DiagnosticsEngine::EmitCurrentDiagnostic(bool Force) {
407 assert(getClient() && "DiagnosticClient not set!")((getClient() && "DiagnosticClient not set!") ? static_cast
<void> (0) : __assert_fail ("getClient() && \"DiagnosticClient not set!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 407, __PRETTY_FUNCTION__))
;
408
409 bool Emitted;
410 if (Force) {
411 Diagnostic Info(this);
412
413 // Figure out the diagnostic level of this message.
414 DiagnosticIDs::Level DiagLevel
415 = Diags->getDiagnosticLevel(Info.getID(), Info.getLocation(), *this);
416
417 Emitted = (DiagLevel != DiagnosticIDs::Ignored);
418 if (Emitted) {
419 // Emit the diagnostic regardless of suppression level.
420 Diags->EmitDiag(*this, DiagLevel);
421 }
422 } else {
423 // Process the diagnostic, sending the accumulated information to the
424 // DiagnosticConsumer.
425 Emitted = ProcessDiag();
426 }
427
428 // Clear out the current diagnostic object.
429 unsigned DiagID = CurDiagID;
430 Clear();
431
432 // If there was a delayed diagnostic, emit it now.
433 if (!Force && DelayedDiagID && DelayedDiagID != DiagID)
434 ReportDelayed();
435
436 return Emitted;
437}
438
439
440DiagnosticConsumer::~DiagnosticConsumer() {}
441
442void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
443 const Diagnostic &Info) {
444 if (!IncludeInDiagnosticCounts())
445 return;
446
447 if (DiagLevel == DiagnosticsEngine::Warning)
448 ++NumWarnings;
449 else if (DiagLevel >= DiagnosticsEngine::Error)
450 ++NumErrors;
451}
452
453/// ModifierIs - Return true if the specified modifier matches specified string.
454template <std::size_t StrLen>
455static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
456 const char (&Str)[StrLen]) {
457 return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
458}
459
460/// ScanForward - Scans forward, looking for the given character, skipping
461/// nested clauses and escaped characters.
462static const char *ScanFormat(const char *I, const char *E, char Target) {
463 unsigned Depth = 0;
464
465 for ( ; I != E; ++I) {
466 if (Depth == 0 && *I == Target) return I;
467 if (Depth != 0 && *I == '}') Depth--;
468
469 if (*I == '%') {
470 I++;
471 if (I == E) break;
472
473 // Escaped characters get implicitly skipped here.
474
475 // Format specifier.
476 if (!isDigit(*I) && !isPunctuation(*I)) {
477 for (I++; I != E && !isDigit(*I) && *I != '{'; I++) ;
478 if (I == E) break;
479 if (*I == '{')
480 Depth++;
481 }
482 }
483 }
484 return E;
485}
486
487/// HandleSelectModifier - Handle the integer 'select' modifier. This is used
488/// like this: %select{foo|bar|baz}2. This means that the integer argument
489/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
490/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
491/// This is very useful for certain classes of variant diagnostics.
492static void HandleSelectModifier(const Diagnostic &DInfo, unsigned ValNo,
493 const char *Argument, unsigned ArgumentLen,
494 SmallVectorImpl<char> &OutStr) {
495 const char *ArgumentEnd = Argument+ArgumentLen;
496
497 // Skip over 'ValNo' |'s.
498 while (ValNo) {
499 const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
500 assert(NextVal != ArgumentEnd && "Value for integer select modifier was"((NextVal != ArgumentEnd && "Value for integer select modifier was"
" larger than the number of options in the diagnostic string!"
) ? static_cast<void> (0) : __assert_fail ("NextVal != ArgumentEnd && \"Value for integer select modifier was\" \" larger than the number of options in the diagnostic string!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 501, __PRETTY_FUNCTION__))
501 " larger than the number of options in the diagnostic string!")((NextVal != ArgumentEnd && "Value for integer select modifier was"
" larger than the number of options in the diagnostic string!"
) ? static_cast<void> (0) : __assert_fail ("NextVal != ArgumentEnd && \"Value for integer select modifier was\" \" larger than the number of options in the diagnostic string!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 501, __PRETTY_FUNCTION__))
;
502 Argument = NextVal+1; // Skip this string.
503 --ValNo;
504 }
505
506 // Get the end of the value. This is either the } or the |.
507 const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
508
509 // Recursively format the result of the select clause into the output string.
510 DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
511}
512
513/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the
514/// letter 's' to the string if the value is not 1. This is used in cases like
515/// this: "you idiot, you have %4 parameter%s4!".
516static void HandleIntegerSModifier(unsigned ValNo,
517 SmallVectorImpl<char> &OutStr) {
518 if (ValNo != 1)
519 OutStr.push_back('s');
520}
521
522/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This
523/// prints the ordinal form of the given integer, with 1 corresponding
524/// to the first ordinal. Currently this is hard-coded to use the
525/// English form.
526static void HandleOrdinalModifier(unsigned ValNo,
527 SmallVectorImpl<char> &OutStr) {
528 assert(ValNo != 0 && "ValNo must be strictly positive!")((ValNo != 0 && "ValNo must be strictly positive!") ?
static_cast<void> (0) : __assert_fail ("ValNo != 0 && \"ValNo must be strictly positive!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 528, __PRETTY_FUNCTION__))
;
529
530 llvm::raw_svector_ostream Out(OutStr);
531
532 // We could use text forms for the first N ordinals, but the numeric
533 // forms are actually nicer in diagnostics because they stand out.
534 Out << ValNo << llvm::getOrdinalSuffix(ValNo);
535}
536
537
538/// PluralNumber - Parse an unsigned integer and advance Start.
539static unsigned PluralNumber(const char *&Start, const char *End) {
540 // Programming 101: Parse a decimal number :-)
541 unsigned Val = 0;
14
'Val' initialized to 0
542 while (Start != End && *Start >= '0' && *Start <= '9') {
15
Assuming the condition is true
16
Assuming the condition is false
17
Loop condition is false. Execution continues on line 547
543 Val *= 10;
544 Val += *Start - '0';
545 ++Start;
546 }
547 return Val;
18
Returning zero (loaded from 'Val')
548}
549
550/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
551static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) {
552 if (*Start != '[') {
553 unsigned Ref = PluralNumber(Start, End);
554 return Ref == Val;
555 }
556
557 ++Start;
558 unsigned Low = PluralNumber(Start, End);
559 assert(*Start == ',' && "Bad plural expression syntax: expected ,")((*Start == ',' && "Bad plural expression syntax: expected ,"
) ? static_cast<void> (0) : __assert_fail ("*Start == ',' && \"Bad plural expression syntax: expected ,\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 559, __PRETTY_FUNCTION__))
;
560 ++Start;
561 unsigned High = PluralNumber(Start, End);
562 assert(*Start == ']' && "Bad plural expression syntax: expected )")((*Start == ']' && "Bad plural expression syntax: expected )"
) ? static_cast<void> (0) : __assert_fail ("*Start == ']' && \"Bad plural expression syntax: expected )\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 562, __PRETTY_FUNCTION__))
;
563 ++Start;
564 return Low <= Val && Val <= High;
565}
566
567/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
568static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) {
569 // Empty condition?
570 if (*Start == ':')
9
Taking false branch
571 return true;
572
573 while (1) {
10
Loop condition is true. Entering loop body
574 char C = *Start;
575 if (C == '%') {
11
Assuming the condition is true
12
Taking true branch
576 // Modulo expression
577 ++Start;
578 unsigned Arg = PluralNumber(Start, End);
13
Calling 'PluralNumber'
19
Returning from 'PluralNumber'
20
'Arg' initialized to 0
579 assert(*Start == '=' && "Bad plural expression syntax: expected =")((*Start == '=' && "Bad plural expression syntax: expected ="
) ? static_cast<void> (0) : __assert_fail ("*Start == '=' && \"Bad plural expression syntax: expected =\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 579, __PRETTY_FUNCTION__))
;
580 ++Start;
581 unsigned ValMod = ValNo % Arg;
21
Division by zero
582 if (TestPluralRange(ValMod, Start, End))
583 return true;
584 } else {
585 assert((C == '[' || (C >= '0' && C <= '9')) &&(((C == '[' || (C >= '0' && C <= '9')) &&
"Bad plural expression syntax: unexpected character") ? static_cast
<void> (0) : __assert_fail ("(C == '[' || (C >= '0' && C <= '9')) && \"Bad plural expression syntax: unexpected character\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 586, __PRETTY_FUNCTION__))
586 "Bad plural expression syntax: unexpected character")(((C == '[' || (C >= '0' && C <= '9')) &&
"Bad plural expression syntax: unexpected character") ? static_cast
<void> (0) : __assert_fail ("(C == '[' || (C >= '0' && C <= '9')) && \"Bad plural expression syntax: unexpected character\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 586, __PRETTY_FUNCTION__))
;
587 // Range expression
588 if (TestPluralRange(ValNo, Start, End))
589 return true;
590 }
591
592 // Scan for next or-expr part.
593 Start = std::find(Start, End, ',');
594 if (Start == End)
595 break;
596 ++Start;
597 }
598 return false;
599}
600
601/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
602/// for complex plural forms, or in languages where all plurals are complex.
603/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
604/// conditions that are tested in order, the form corresponding to the first
605/// that applies being emitted. The empty condition is always true, making the
606/// last form a default case.
607/// Conditions are simple boolean expressions, where n is the number argument.
608/// Here are the rules.
609/// condition := expression | empty
610/// empty := -> always true
611/// expression := numeric [',' expression] -> logical or
612/// numeric := range -> true if n in range
613/// | '%' number '=' range -> true if n % number in range
614/// range := number
615/// | '[' number ',' number ']' -> ranges are inclusive both ends
616///
617/// Here are some examples from the GNU gettext manual written in this form:
618/// English:
619/// {1:form0|:form1}
620/// Latvian:
621/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
622/// Gaeilge:
623/// {1:form0|2:form1|:form2}
624/// Romanian:
625/// {1:form0|0,%100=[1,19]:form1|:form2}
626/// Lithuanian:
627/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
628/// Russian (requires repeated form):
629/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
630/// Slovak
631/// {1:form0|[2,4]:form1|:form2}
632/// Polish (requires repeated form):
633/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
634static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo,
635 const char *Argument, unsigned ArgumentLen,
636 SmallVectorImpl<char> &OutStr) {
637 const char *ArgumentEnd = Argument + ArgumentLen;
638 while (1) {
1
Loop condition is true. Entering loop body
639 assert(Argument < ArgumentEnd && "Plural expression didn't match.")((Argument < ArgumentEnd && "Plural expression didn't match."
) ? static_cast<void> (0) : __assert_fail ("Argument < ArgumentEnd && \"Plural expression didn't match.\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 639, __PRETTY_FUNCTION__))
;
640 const char *ExprEnd = Argument;
641 while (*ExprEnd != ':') {
2
Assuming the condition is true
3
Loop condition is true. Entering loop body
4
Assuming the condition is true
5
Loop condition is true. Entering loop body
6
Assuming the condition is false
7
Loop condition is false. Execution continues on line 645
642 assert(ExprEnd != ArgumentEnd && "Plural missing expression end")((ExprEnd != ArgumentEnd && "Plural missing expression end"
) ? static_cast<void> (0) : __assert_fail ("ExprEnd != ArgumentEnd && \"Plural missing expression end\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 642, __PRETTY_FUNCTION__))
;
643 ++ExprEnd;
644 }
645 if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
8
Calling 'EvalPluralExpr'
646 Argument = ExprEnd + 1;
647 ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
648
649 // Recursively format the result of the plural clause into the
650 // output string.
651 DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
652 return;
653 }
654 Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
655 }
656}
657
658/// \brief Returns the friendly description for a token kind that will appear
659/// without quotes in diagnostic messages. These strings may be translatable in
660/// future.
661static const char *getTokenDescForDiagnostic(tok::TokenKind Kind) {
662 switch (Kind) {
663 case tok::identifier:
664 return "identifier";
665 default:
666 return nullptr;
667 }
668}
669
670/// FormatDiagnostic - Format this diagnostic into a string, substituting the
671/// formal arguments into the %0 slots. The result is appended onto the Str
672/// array.
673void Diagnostic::
674FormatDiagnostic(SmallVectorImpl<char> &OutStr) const {
675 if (!StoredDiagMessage.empty()) {
676 OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end());
677 return;
678 }
679
680 StringRef Diag =
681 getDiags()->getDiagnosticIDs()->getDescription(getID());
682
683 FormatDiagnostic(Diag.begin(), Diag.end(), OutStr);
684}
685
686void Diagnostic::
687FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
688 SmallVectorImpl<char> &OutStr) const {
689
690 // When the diagnostic string is only "%0", the entire string is being given
691 // by an outside source. Remove unprintable characters from this string
692 // and skip all the other string processing.
693 if (DiagEnd - DiagStr == 2 &&
694 StringRef(DiagStr, DiagEnd - DiagStr).equals("%0") &&
695 getArgKind(0) == DiagnosticsEngine::ak_std_string) {
696 const std::string &S = getArgStdStr(0);
697 for (char c : S) {
698 if (llvm::sys::locale::isPrint(c) || c == '\t') {
699 OutStr.push_back(c);
700 }
701 }
702 return;
703 }
704
705 /// FormattedArgs - Keep track of all of the arguments formatted by
706 /// ConvertArgToString and pass them into subsequent calls to
707 /// ConvertArgToString, allowing the implementation to avoid redundancies in
708 /// obvious cases.
709 SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs;
710
711 /// QualTypeVals - Pass a vector of arrays so that QualType names can be
712 /// compared to see if more information is needed to be printed.
713 SmallVector<intptr_t, 2> QualTypeVals;
714 SmallVector<char, 64> Tree;
715
716 for (unsigned i = 0, e = getNumArgs(); i < e; ++i)
717 if (getArgKind(i) == DiagnosticsEngine::ak_qualtype)
718 QualTypeVals.push_back(getRawArg(i));
719
720 while (DiagStr != DiagEnd) {
721 if (DiagStr[0] != '%') {
722 // Append non-%0 substrings to Str if we have one.
723 const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
724 OutStr.append(DiagStr, StrEnd);
725 DiagStr = StrEnd;
726 continue;
727 } else if (isPunctuation(DiagStr[1])) {
728 OutStr.push_back(DiagStr[1]); // %% -> %.
729 DiagStr += 2;
730 continue;
731 }
732
733 // Skip the %.
734 ++DiagStr;
735
736 // This must be a placeholder for a diagnostic argument. The format for a
737 // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
738 // The digit is a number from 0-9 indicating which argument this comes from.
739 // The modifier is a string of digits from the set [-a-z]+, arguments is a
740 // brace enclosed string.
741 const char *Modifier = nullptr, *Argument = nullptr;
742 unsigned ModifierLen = 0, ArgumentLen = 0;
743
744 // Check to see if we have a modifier. If so eat it.
745 if (!isDigit(DiagStr[0])) {
746 Modifier = DiagStr;
747 while (DiagStr[0] == '-' ||
748 (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
749 ++DiagStr;
750 ModifierLen = DiagStr-Modifier;
751
752 // If we have an argument, get it next.
753 if (DiagStr[0] == '{') {
754 ++DiagStr; // Skip {.
755 Argument = DiagStr;
756
757 DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
758 assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!")((DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!"
) ? static_cast<void> (0) : __assert_fail ("DiagStr != DiagEnd && \"Mismatched {}'s in diagnostic string!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 758, __PRETTY_FUNCTION__))
;
759 ArgumentLen = DiagStr-Argument;
760 ++DiagStr; // Skip }.
761 }
762 }
763
764 assert(isDigit(*DiagStr) && "Invalid format for argument in diagnostic")((isDigit(*DiagStr) && "Invalid format for argument in diagnostic"
) ? static_cast<void> (0) : __assert_fail ("isDigit(*DiagStr) && \"Invalid format for argument in diagnostic\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 764, __PRETTY_FUNCTION__))
;
765 unsigned ArgNo = *DiagStr++ - '0';
766
767 // Only used for type diffing.
768 unsigned ArgNo2 = ArgNo;
769
770 DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo);
771 if (ModifierIs(Modifier, ModifierLen, "diff")) {
772 assert(*DiagStr == ',' && isDigit(*(DiagStr + 1)) &&((*DiagStr == ',' && isDigit(*(DiagStr + 1)) &&
"Invalid format for diff modifier") ? static_cast<void>
(0) : __assert_fail ("*DiagStr == ',' && isDigit(*(DiagStr + 1)) && \"Invalid format for diff modifier\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 773, __PRETTY_FUNCTION__))
773 "Invalid format for diff modifier")((*DiagStr == ',' && isDigit(*(DiagStr + 1)) &&
"Invalid format for diff modifier") ? static_cast<void>
(0) : __assert_fail ("*DiagStr == ',' && isDigit(*(DiagStr + 1)) && \"Invalid format for diff modifier\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 773, __PRETTY_FUNCTION__))
;
774 ++DiagStr; // Comma.
775 ArgNo2 = *DiagStr++ - '0';
776 DiagnosticsEngine::ArgumentKind Kind2 = getArgKind(ArgNo2);
777 if (Kind == DiagnosticsEngine::ak_qualtype &&
778 Kind2 == DiagnosticsEngine::ak_qualtype)
779 Kind = DiagnosticsEngine::ak_qualtype_pair;
780 else {
781 // %diff only supports QualTypes. For other kinds of arguments,
782 // use the default printing. For example, if the modifier is:
783 // "%diff{compare $ to $|other text}1,2"
784 // treat it as:
785 // "compare %1 to %2"
786 const char *ArgumentEnd = Argument + ArgumentLen;
787 const char *Pipe = ScanFormat(Argument, ArgumentEnd, '|');
788 assert(ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&((ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&
"Found too many '|'s in a %diff modifier!") ? static_cast<
void> (0) : __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd && \"Found too many '|'s in a %diff modifier!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 789, __PRETTY_FUNCTION__))
789 "Found too many '|'s in a %diff modifier!")((ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&
"Found too many '|'s in a %diff modifier!") ? static_cast<
void> (0) : __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd && \"Found too many '|'s in a %diff modifier!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 789, __PRETTY_FUNCTION__))
;
790 const char *FirstDollar = ScanFormat(Argument, Pipe, '$');
791 const char *SecondDollar = ScanFormat(FirstDollar + 1, Pipe, '$');
792 const char ArgStr1[] = { '%', static_cast<char>('0' + ArgNo) };
793 const char ArgStr2[] = { '%', static_cast<char>('0' + ArgNo2) };
794 FormatDiagnostic(Argument, FirstDollar, OutStr);
795 FormatDiagnostic(ArgStr1, ArgStr1 + 2, OutStr);
796 FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
797 FormatDiagnostic(ArgStr2, ArgStr2 + 2, OutStr);
798 FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
799 continue;
800 }
801 }
802
803 switch (Kind) {
804 // ---- STRINGS ----
805 case DiagnosticsEngine::ak_std_string: {
806 const std::string &S = getArgStdStr(ArgNo);
807 assert(ModifierLen == 0 && "No modifiers for strings yet")((ModifierLen == 0 && "No modifiers for strings yet")
? static_cast<void> (0) : __assert_fail ("ModifierLen == 0 && \"No modifiers for strings yet\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 807, __PRETTY_FUNCTION__))
;
808 OutStr.append(S.begin(), S.end());
809 break;
810 }
811 case DiagnosticsEngine::ak_c_string: {
812 const char *S = getArgCStr(ArgNo);
813 assert(ModifierLen == 0 && "No modifiers for strings yet")((ModifierLen == 0 && "No modifiers for strings yet")
? static_cast<void> (0) : __assert_fail ("ModifierLen == 0 && \"No modifiers for strings yet\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 813, __PRETTY_FUNCTION__))
;
814
815 // Don't crash if get passed a null pointer by accident.
816 if (!S)
817 S = "(null)";
818
819 OutStr.append(S, S + strlen(S));
820 break;
821 }
822 // ---- INTEGERS ----
823 case DiagnosticsEngine::ak_sint: {
824 int Val = getArgSInt(ArgNo);
825
826 if (ModifierIs(Modifier, ModifierLen, "select")) {
827 HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen,
828 OutStr);
829 } else if (ModifierIs(Modifier, ModifierLen, "s")) {
830 HandleIntegerSModifier(Val, OutStr);
831 } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
832 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
833 OutStr);
834 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
835 HandleOrdinalModifier((unsigned)Val, OutStr);
836 } else {
837 assert(ModifierLen == 0 && "Unknown integer modifier")((ModifierLen == 0 && "Unknown integer modifier") ? static_cast
<void> (0) : __assert_fail ("ModifierLen == 0 && \"Unknown integer modifier\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 837, __PRETTY_FUNCTION__))
;
838 llvm::raw_svector_ostream(OutStr) << Val;
839 }
840 break;
841 }
842 case DiagnosticsEngine::ak_uint: {
843 unsigned Val = getArgUInt(ArgNo);
844
845 if (ModifierIs(Modifier, ModifierLen, "select")) {
846 HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
847 } else if (ModifierIs(Modifier, ModifierLen, "s")) {
848 HandleIntegerSModifier(Val, OutStr);
849 } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
850 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
851 OutStr);
852 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
853 HandleOrdinalModifier(Val, OutStr);
854 } else {
855 assert(ModifierLen == 0 && "Unknown integer modifier")((ModifierLen == 0 && "Unknown integer modifier") ? static_cast
<void> (0) : __assert_fail ("ModifierLen == 0 && \"Unknown integer modifier\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 855, __PRETTY_FUNCTION__))
;
856 llvm::raw_svector_ostream(OutStr) << Val;
857 }
858 break;
859 }
860 // ---- TOKEN SPELLINGS ----
861 case DiagnosticsEngine::ak_tokenkind: {
862 tok::TokenKind Kind = static_cast<tok::TokenKind>(getRawArg(ArgNo));
863 assert(ModifierLen == 0 && "No modifiers for token kinds yet")((ModifierLen == 0 && "No modifiers for token kinds yet"
) ? static_cast<void> (0) : __assert_fail ("ModifierLen == 0 && \"No modifiers for token kinds yet\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 863, __PRETTY_FUNCTION__))
;
864
865 llvm::raw_svector_ostream Out(OutStr);
866 if (const char *S = tok::getPunctuatorSpelling(Kind))
867 // Quoted token spelling for punctuators.
868 Out << '\'' << S << '\'';
869 else if (const char *S = tok::getKeywordSpelling(Kind))
870 // Unquoted token spelling for keywords.
871 Out << S;
872 else if (const char *S = getTokenDescForDiagnostic(Kind))
873 // Unquoted translatable token name.
874 Out << S;
875 else if (const char *S = tok::getTokenName(Kind))
876 // Debug name, shouldn't appear in user-facing diagnostics.
877 Out << '<' << S << '>';
878 else
879 Out << "(null)";
880 break;
881 }
882 // ---- NAMES and TYPES ----
883 case DiagnosticsEngine::ak_identifierinfo: {
884 const IdentifierInfo *II = getArgIdentifier(ArgNo);
885 assert(ModifierLen == 0 && "No modifiers for strings yet")((ModifierLen == 0 && "No modifiers for strings yet")
? static_cast<void> (0) : __assert_fail ("ModifierLen == 0 && \"No modifiers for strings yet\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 885, __PRETTY_FUNCTION__))
;
886
887 // Don't crash if get passed a null pointer by accident.
888 if (!II) {
889 const char *S = "(null)";
890 OutStr.append(S, S + strlen(S));
891 continue;
892 }
893
894 llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
895 break;
896 }
897 case DiagnosticsEngine::ak_qualtype:
898 case DiagnosticsEngine::ak_declarationname:
899 case DiagnosticsEngine::ak_nameddecl:
900 case DiagnosticsEngine::ak_nestednamespec:
901 case DiagnosticsEngine::ak_declcontext:
902 case DiagnosticsEngine::ak_attr:
903 getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
904 StringRef(Modifier, ModifierLen),
905 StringRef(Argument, ArgumentLen),
906 FormattedArgs,
907 OutStr, QualTypeVals);
908 break;
909 case DiagnosticsEngine::ak_qualtype_pair:
910 // Create a struct with all the info needed for printing.
911 TemplateDiffTypes TDT;
912 TDT.FromType = getRawArg(ArgNo);
913 TDT.ToType = getRawArg(ArgNo2);
914 TDT.ElideType = getDiags()->ElideType;
915 TDT.ShowColors = getDiags()->ShowColors;
916 TDT.TemplateDiffUsed = false;
917 intptr_t val = reinterpret_cast<intptr_t>(&TDT);
918
919 const char *ArgumentEnd = Argument + ArgumentLen;
920 const char *Pipe = ScanFormat(Argument, ArgumentEnd, '|');
921
922 // Print the tree. If this diagnostic already has a tree, skip the
923 // second tree.
924 if (getDiags()->PrintTemplateTree && Tree.empty()) {
925 TDT.PrintFromType = true;
926 TDT.PrintTree = true;
927 getDiags()->ConvertArgToString(Kind, val,
928 StringRef(Modifier, ModifierLen),
929 StringRef(Argument, ArgumentLen),
930 FormattedArgs,
931 Tree, QualTypeVals);
932 // If there is no tree information, fall back to regular printing.
933 if (!Tree.empty()) {
934 FormatDiagnostic(Pipe + 1, ArgumentEnd, OutStr);
935 break;
936 }
937 }
938
939 // Non-tree printing, also the fall-back when tree printing fails.
940 // The fall-back is triggered when the types compared are not templates.
941 const char *FirstDollar = ScanFormat(Argument, ArgumentEnd, '$');
942 const char *SecondDollar = ScanFormat(FirstDollar + 1, ArgumentEnd, '$');
943
944 // Append before text
945 FormatDiagnostic(Argument, FirstDollar, OutStr);
946
947 // Append first type
948 TDT.PrintTree = false;
949 TDT.PrintFromType = true;
950 getDiags()->ConvertArgToString(Kind, val,
951 StringRef(Modifier, ModifierLen),
952 StringRef(Argument, ArgumentLen),
953 FormattedArgs,
954 OutStr, QualTypeVals);
955 if (!TDT.TemplateDiffUsed)
956 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
957 TDT.FromType));
958
959 // Append middle text
960 FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
961
962 // Append second type
963 TDT.PrintFromType = false;
964 getDiags()->ConvertArgToString(Kind, val,
965 StringRef(Modifier, ModifierLen),
966 StringRef(Argument, ArgumentLen),
967 FormattedArgs,
968 OutStr, QualTypeVals);
969 if (!TDT.TemplateDiffUsed)
970 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
971 TDT.ToType));
972
973 // Append end text
974 FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
975 break;
976 }
977
978 // Remember this argument info for subsequent formatting operations. Turn
979 // std::strings into a null terminated string to make it be the same case as
980 // all the other ones.
981 if (Kind == DiagnosticsEngine::ak_qualtype_pair)
982 continue;
983 else if (Kind != DiagnosticsEngine::ak_std_string)
984 FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
985 else
986 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string,
987 (intptr_t)getArgStdStr(ArgNo).c_str()));
988
989 }
990
991 // Append the type tree to the end of the diagnostics.
992 OutStr.append(Tree.begin(), Tree.end());
993}
994
995StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
996 StringRef Message)
997 : ID(ID), Level(Level), Loc(), Message(Message) { }
998
999StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level,
1000 const Diagnostic &Info)
1001 : ID(Info.getID()), Level(Level)
1002{
1003 assert((Info.getLocation().isInvalid() || Info.hasSourceManager()) &&(((Info.getLocation().isInvalid() || Info.hasSourceManager())
&& "Valid source location without setting a source manager for diagnostic"
) ? static_cast<void> (0) : __assert_fail ("(Info.getLocation().isInvalid() || Info.hasSourceManager()) && \"Valid source location without setting a source manager for diagnostic\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 1004, __PRETTY_FUNCTION__))
1004 "Valid source location without setting a source manager for diagnostic")(((Info.getLocation().isInvalid() || Info.hasSourceManager())
&& "Valid source location without setting a source manager for diagnostic"
) ? static_cast<void> (0) : __assert_fail ("(Info.getLocation().isInvalid() || Info.hasSourceManager()) && \"Valid source location without setting a source manager for diagnostic\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 1004, __PRETTY_FUNCTION__))
;
1005 if (Info.getLocation().isValid())
1006 Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager());
1007 SmallString<64> Message;
1008 Info.FormatDiagnostic(Message);
1009 this->Message.assign(Message.begin(), Message.end());
1010 this->Ranges.assign(Info.getRanges().begin(), Info.getRanges().end());
1011 this->FixIts.assign(Info.getFixItHints().begin(), Info.getFixItHints().end());
1012}
1013
1014StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
1015 StringRef Message, FullSourceLoc Loc,
1016 ArrayRef<CharSourceRange> Ranges,
1017 ArrayRef<FixItHint> FixIts)
1018 : ID(ID), Level(Level), Loc(Loc), Message(Message),
1019 Ranges(Ranges.begin(), Ranges.end()), FixIts(FixIts.begin(), FixIts.end())
1020{
1021}
1022
1023/// IncludeInDiagnosticCounts - This method (whose default implementation
1024/// returns true) indicates whether the diagnostics handled by this
1025/// DiagnosticConsumer should be included in the number of diagnostics
1026/// reported by DiagnosticsEngine.
1027bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; }
1028
1029void IgnoringDiagConsumer::anchor() { }
1030
1031ForwardingDiagnosticConsumer::~ForwardingDiagnosticConsumer() {}
1032
1033void ForwardingDiagnosticConsumer::HandleDiagnostic(
1034 DiagnosticsEngine::Level DiagLevel,
1035 const Diagnostic &Info) {
1036 Target.HandleDiagnostic(DiagLevel, Info);
1037}
1038
1039void ForwardingDiagnosticConsumer::clear() {
1040 DiagnosticConsumer::clear();
1041 Target.clear();
1042}
1043
1044bool ForwardingDiagnosticConsumer::IncludeInDiagnosticCounts() const {
1045 return Target.IncludeInDiagnosticCounts();
1046}
1047
1048PartialDiagnostic::StorageAllocator::StorageAllocator() {
1049 for (unsigned I = 0; I != NumCached; ++I)
1050 FreeList[I] = Cached + I;
1051 NumFreeListEntries = NumCached;
1052}
1053
1054PartialDiagnostic::StorageAllocator::~StorageAllocator() {
1055 // Don't assert if we are in a CrashRecovery context, as this invariant may
1056 // be invalidated during a crash.
1057 assert((NumFreeListEntries == NumCached ||(((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext
::isRecoveringFromCrash()) && "A partial is on the lam"
) ? static_cast<void> (0) : __assert_fail ("(NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && \"A partial is on the lam\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 1059, __PRETTY_FUNCTION__))
1058 llvm::CrashRecoveryContext::isRecoveringFromCrash()) &&(((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext
::isRecoveringFromCrash()) && "A partial is on the lam"
) ? static_cast<void> (0) : __assert_fail ("(NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && \"A partial is on the lam\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 1059, __PRETTY_FUNCTION__))
1059 "A partial is on the lam")(((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext
::isRecoveringFromCrash()) && "A partial is on the lam"
) ? static_cast<void> (0) : __assert_fail ("(NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && \"A partial is on the lam\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn301135/tools/clang/lib/Basic/Diagnostic.cpp"
, 1059, __PRETTY_FUNCTION__))
;
1060}