Bug Summary

File:tools/clang/lib/Basic/Diagnostic.cpp
Warning:line 577, 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~svn298304/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~svn298304/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~svn298304/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~svn298304/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~svn298304/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~svn298304/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~svn298304/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~svn298304/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~svn298304/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~svn298304/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 if (Map == diag::Severity::Warning) {
262 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
263 if (Info.getSeverity() == diag::Severity::Error ||
264 Info.getSeverity() == diag::Severity::Fatal)
265 Map = Info.getSeverity();
266 }
267 DiagnosticMapping Mapping = makeUserMapping(Map, L);
268
269 // Common case; setting all the diagnostics of a group in one place.
270 if ((L.isInvalid() || L == DiagStatesByLoc.getCurDiagStateLoc()) &&
271 DiagStatesByLoc.getCurDiagState()) {
272 // FIXME: This is theoretically wrong: if the current state is shared with
273 // some other location (via push/pop) we will change the state for that
274 // other location as well. This cannot currently happen, as we can't update
275 // the diagnostic state at the same location at which we pop.
276 DiagStatesByLoc.getCurDiagState()->setMapping(Diag, Mapping);
277 return;
278 }
279
280 // A diagnostic pragma occurred, create a new DiagState initialized with
281 // the current one and a new DiagStatePoint to record at which location
282 // the new state became active.
283 DiagStates.push_back(*GetCurDiagState());
284 DiagStates.back().setMapping(Diag, Mapping);
285 PushDiagStatePoint(&DiagStates.back(), L);
286}
287
288bool DiagnosticsEngine::setSeverityForGroup(diag::Flavor Flavor,
289 StringRef Group, diag::Severity Map,
290 SourceLocation Loc) {
291 // Get the diagnostics in this group.
292 SmallVector<diag::kind, 256> GroupDiags;
293 if (Diags->getDiagnosticsInGroup(Flavor, Group, GroupDiags))
294 return true;
295
296 // Set the mapping.
297 for (diag::kind Diag : GroupDiags)
298 setSeverity(Diag, Map, Loc);
299
300 return false;
301}
302
303bool DiagnosticsEngine::setDiagnosticGroupWarningAsError(StringRef Group,
304 bool Enabled) {
305 // If we are enabling this feature, just set the diagnostic mappings to map to
306 // errors.
307 if (Enabled)
308 return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
309 diag::Severity::Error);
310
311 // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
312 // potentially downgrade anything already mapped to be a warning.
313
314 // Get the diagnostics in this group.
315 SmallVector<diag::kind, 8> GroupDiags;
316 if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
317 GroupDiags))
318 return true;
319
320 // Perform the mapping change.
321 for (diag::kind Diag : GroupDiags) {
322 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
323
324 if (Info.getSeverity() == diag::Severity::Error ||
325 Info.getSeverity() == diag::Severity::Fatal)
326 Info.setSeverity(diag::Severity::Warning);
327
328 Info.setNoWarningAsError(true);
329 }
330
331 return false;
332}
333
334bool DiagnosticsEngine::setDiagnosticGroupErrorAsFatal(StringRef Group,
335 bool Enabled) {
336 // If we are enabling this feature, just set the diagnostic mappings to map to
337 // fatal errors.
338 if (Enabled)
339 return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
340 diag::Severity::Fatal);
341
342 // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
343 // potentially downgrade anything already mapped to be an error.
344
345 // Get the diagnostics in this group.
346 SmallVector<diag::kind, 8> GroupDiags;
347 if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
348 GroupDiags))
349 return true;
350
351 // Perform the mapping change.
352 for (diag::kind Diag : GroupDiags) {
353 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
354
355 if (Info.getSeverity() == diag::Severity::Fatal)
356 Info.setSeverity(diag::Severity::Error);
357
358 Info.setNoErrorAsFatal(true);
359 }
360
361 return false;
362}
363
364void DiagnosticsEngine::setSeverityForAll(diag::Flavor Flavor,
365 diag::Severity Map,
366 SourceLocation Loc) {
367 // Get all the diagnostics.
368 SmallVector<diag::kind, 64> AllDiags;
369 Diags->getAllDiagnostics(Flavor, AllDiags);
370
371 // Set the mapping.
372 for (diag::kind Diag : AllDiags)
373 if (Diags->isBuiltinWarningOrExtension(Diag))
374 setSeverity(Diag, Map, Loc);
375}
376
377void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) {
378 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 378, __PRETTY_FUNCTION__))
;
379
380 CurDiagLoc = storedDiag.getLocation();
381 CurDiagID = storedDiag.getID();
382 NumDiagArgs = 0;
383
384 DiagRanges.clear();
385 DiagRanges.append(storedDiag.range_begin(), storedDiag.range_end());
386
387 DiagFixItHints.clear();
388 DiagFixItHints.append(storedDiag.fixit_begin(), storedDiag.fixit_end());
389
390 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 390, __PRETTY_FUNCTION__))
;
391 Level DiagLevel = storedDiag.getLevel();
392 Diagnostic Info(this, storedDiag.getMessage());
393 Client->HandleDiagnostic(DiagLevel, Info);
394 if (Client->IncludeInDiagnosticCounts()) {
395 if (DiagLevel == DiagnosticsEngine::Warning)
396 ++NumWarnings;
397 }
398
399 CurDiagID = ~0U;
400}
401
402bool DiagnosticsEngine::EmitCurrentDiagnostic(bool Force) {
403 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 403, __PRETTY_FUNCTION__))
;
404
405 bool Emitted;
406 if (Force) {
407 Diagnostic Info(this);
408
409 // Figure out the diagnostic level of this message.
410 DiagnosticIDs::Level DiagLevel
411 = Diags->getDiagnosticLevel(Info.getID(), Info.getLocation(), *this);
412
413 Emitted = (DiagLevel != DiagnosticIDs::Ignored);
414 if (Emitted) {
415 // Emit the diagnostic regardless of suppression level.
416 Diags->EmitDiag(*this, DiagLevel);
417 }
418 } else {
419 // Process the diagnostic, sending the accumulated information to the
420 // DiagnosticConsumer.
421 Emitted = ProcessDiag();
422 }
423
424 // Clear out the current diagnostic object.
425 unsigned DiagID = CurDiagID;
426 Clear();
427
428 // If there was a delayed diagnostic, emit it now.
429 if (!Force && DelayedDiagID && DelayedDiagID != DiagID)
430 ReportDelayed();
431
432 return Emitted;
433}
434
435
436DiagnosticConsumer::~DiagnosticConsumer() {}
437
438void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
439 const Diagnostic &Info) {
440 if (!IncludeInDiagnosticCounts())
441 return;
442
443 if (DiagLevel == DiagnosticsEngine::Warning)
444 ++NumWarnings;
445 else if (DiagLevel >= DiagnosticsEngine::Error)
446 ++NumErrors;
447}
448
449/// ModifierIs - Return true if the specified modifier matches specified string.
450template <std::size_t StrLen>
451static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
452 const char (&Str)[StrLen]) {
453 return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
454}
455
456/// ScanForward - Scans forward, looking for the given character, skipping
457/// nested clauses and escaped characters.
458static const char *ScanFormat(const char *I, const char *E, char Target) {
459 unsigned Depth = 0;
460
461 for ( ; I != E; ++I) {
462 if (Depth == 0 && *I == Target) return I;
463 if (Depth != 0 && *I == '}') Depth--;
464
465 if (*I == '%') {
466 I++;
467 if (I == E) break;
468
469 // Escaped characters get implicitly skipped here.
470
471 // Format specifier.
472 if (!isDigit(*I) && !isPunctuation(*I)) {
473 for (I++; I != E && !isDigit(*I) && *I != '{'; I++) ;
474 if (I == E) break;
475 if (*I == '{')
476 Depth++;
477 }
478 }
479 }
480 return E;
481}
482
483/// HandleSelectModifier - Handle the integer 'select' modifier. This is used
484/// like this: %select{foo|bar|baz}2. This means that the integer argument
485/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
486/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
487/// This is very useful for certain classes of variant diagnostics.
488static void HandleSelectModifier(const Diagnostic &DInfo, unsigned ValNo,
489 const char *Argument, unsigned ArgumentLen,
490 SmallVectorImpl<char> &OutStr) {
491 const char *ArgumentEnd = Argument+ArgumentLen;
492
493 // Skip over 'ValNo' |'s.
494 while (ValNo) {
495 const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
496 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 497, __PRETTY_FUNCTION__))
497 " 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 497, __PRETTY_FUNCTION__))
;
498 Argument = NextVal+1; // Skip this string.
499 --ValNo;
500 }
501
502 // Get the end of the value. This is either the } or the |.
503 const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
504
505 // Recursively format the result of the select clause into the output string.
506 DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
507}
508
509/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the
510/// letter 's' to the string if the value is not 1. This is used in cases like
511/// this: "you idiot, you have %4 parameter%s4!".
512static void HandleIntegerSModifier(unsigned ValNo,
513 SmallVectorImpl<char> &OutStr) {
514 if (ValNo != 1)
515 OutStr.push_back('s');
516}
517
518/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This
519/// prints the ordinal form of the given integer, with 1 corresponding
520/// to the first ordinal. Currently this is hard-coded to use the
521/// English form.
522static void HandleOrdinalModifier(unsigned ValNo,
523 SmallVectorImpl<char> &OutStr) {
524 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 524, __PRETTY_FUNCTION__))
;
525
526 llvm::raw_svector_ostream Out(OutStr);
527
528 // We could use text forms for the first N ordinals, but the numeric
529 // forms are actually nicer in diagnostics because they stand out.
530 Out << ValNo << llvm::getOrdinalSuffix(ValNo);
531}
532
533
534/// PluralNumber - Parse an unsigned integer and advance Start.
535static unsigned PluralNumber(const char *&Start, const char *End) {
536 // Programming 101: Parse a decimal number :-)
537 unsigned Val = 0;
14
'Val' initialized to 0
538 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 543
539 Val *= 10;
540 Val += *Start - '0';
541 ++Start;
542 }
543 return Val;
18
Returning zero (loaded from 'Val')
544}
545
546/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
547static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) {
548 if (*Start != '[') {
549 unsigned Ref = PluralNumber(Start, End);
550 return Ref == Val;
551 }
552
553 ++Start;
554 unsigned Low = PluralNumber(Start, End);
555 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 555, __PRETTY_FUNCTION__))
;
556 ++Start;
557 unsigned High = PluralNumber(Start, End);
558 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 558, __PRETTY_FUNCTION__))
;
559 ++Start;
560 return Low <= Val && Val <= High;
561}
562
563/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
564static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) {
565 // Empty condition?
566 if (*Start == ':')
9
Taking false branch
567 return true;
568
569 while (1) {
10
Loop condition is true. Entering loop body
570 char C = *Start;
571 if (C == '%') {
11
Assuming the condition is true
12
Taking true branch
572 // Modulo expression
573 ++Start;
574 unsigned Arg = PluralNumber(Start, End);
13
Calling 'PluralNumber'
19
Returning from 'PluralNumber'
20
'Arg' initialized to 0
575 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 575, __PRETTY_FUNCTION__))
;
576 ++Start;
577 unsigned ValMod = ValNo % Arg;
21
Division by zero
578 if (TestPluralRange(ValMod, Start, End))
579 return true;
580 } else {
581 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 582, __PRETTY_FUNCTION__))
582 "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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 582, __PRETTY_FUNCTION__))
;
583 // Range expression
584 if (TestPluralRange(ValNo, Start, End))
585 return true;
586 }
587
588 // Scan for next or-expr part.
589 Start = std::find(Start, End, ',');
590 if (Start == End)
591 break;
592 ++Start;
593 }
594 return false;
595}
596
597/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
598/// for complex plural forms, or in languages where all plurals are complex.
599/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
600/// conditions that are tested in order, the form corresponding to the first
601/// that applies being emitted. The empty condition is always true, making the
602/// last form a default case.
603/// Conditions are simple boolean expressions, where n is the number argument.
604/// Here are the rules.
605/// condition := expression | empty
606/// empty := -> always true
607/// expression := numeric [',' expression] -> logical or
608/// numeric := range -> true if n in range
609/// | '%' number '=' range -> true if n % number in range
610/// range := number
611/// | '[' number ',' number ']' -> ranges are inclusive both ends
612///
613/// Here are some examples from the GNU gettext manual written in this form:
614/// English:
615/// {1:form0|:form1}
616/// Latvian:
617/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
618/// Gaeilge:
619/// {1:form0|2:form1|:form2}
620/// Romanian:
621/// {1:form0|0,%100=[1,19]:form1|:form2}
622/// Lithuanian:
623/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
624/// Russian (requires repeated form):
625/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
626/// Slovak
627/// {1:form0|[2,4]:form1|:form2}
628/// Polish (requires repeated form):
629/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
630static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo,
631 const char *Argument, unsigned ArgumentLen,
632 SmallVectorImpl<char> &OutStr) {
633 const char *ArgumentEnd = Argument + ArgumentLen;
634 while (1) {
1
Loop condition is true. Entering loop body
635 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 635, __PRETTY_FUNCTION__))
;
636 const char *ExprEnd = Argument;
637 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 641
638 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 638, __PRETTY_FUNCTION__))
;
639 ++ExprEnd;
640 }
641 if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
8
Calling 'EvalPluralExpr'
642 Argument = ExprEnd + 1;
643 ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
644
645 // Recursively format the result of the plural clause into the
646 // output string.
647 DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
648 return;
649 }
650 Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
651 }
652}
653
654/// \brief Returns the friendly description for a token kind that will appear
655/// without quotes in diagnostic messages. These strings may be translatable in
656/// future.
657static const char *getTokenDescForDiagnostic(tok::TokenKind Kind) {
658 switch (Kind) {
659 case tok::identifier:
660 return "identifier";
661 default:
662 return nullptr;
663 }
664}
665
666/// FormatDiagnostic - Format this diagnostic into a string, substituting the
667/// formal arguments into the %0 slots. The result is appended onto the Str
668/// array.
669void Diagnostic::
670FormatDiagnostic(SmallVectorImpl<char> &OutStr) const {
671 if (!StoredDiagMessage.empty()) {
672 OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end());
673 return;
674 }
675
676 StringRef Diag =
677 getDiags()->getDiagnosticIDs()->getDescription(getID());
678
679 FormatDiagnostic(Diag.begin(), Diag.end(), OutStr);
680}
681
682void Diagnostic::
683FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
684 SmallVectorImpl<char> &OutStr) const {
685
686 // When the diagnostic string is only "%0", the entire string is being given
687 // by an outside source. Remove unprintable characters from this string
688 // and skip all the other string processing.
689 if (DiagEnd - DiagStr == 2 &&
690 StringRef(DiagStr, DiagEnd - DiagStr).equals("%0") &&
691 getArgKind(0) == DiagnosticsEngine::ak_std_string) {
692 const std::string &S = getArgStdStr(0);
693 for (char c : S) {
694 if (llvm::sys::locale::isPrint(c) || c == '\t') {
695 OutStr.push_back(c);
696 }
697 }
698 return;
699 }
700
701 /// FormattedArgs - Keep track of all of the arguments formatted by
702 /// ConvertArgToString and pass them into subsequent calls to
703 /// ConvertArgToString, allowing the implementation to avoid redundancies in
704 /// obvious cases.
705 SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs;
706
707 /// QualTypeVals - Pass a vector of arrays so that QualType names can be
708 /// compared to see if more information is needed to be printed.
709 SmallVector<intptr_t, 2> QualTypeVals;
710 SmallVector<char, 64> Tree;
711
712 for (unsigned i = 0, e = getNumArgs(); i < e; ++i)
713 if (getArgKind(i) == DiagnosticsEngine::ak_qualtype)
714 QualTypeVals.push_back(getRawArg(i));
715
716 while (DiagStr != DiagEnd) {
717 if (DiagStr[0] != '%') {
718 // Append non-%0 substrings to Str if we have one.
719 const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
720 OutStr.append(DiagStr, StrEnd);
721 DiagStr = StrEnd;
722 continue;
723 } else if (isPunctuation(DiagStr[1])) {
724 OutStr.push_back(DiagStr[1]); // %% -> %.
725 DiagStr += 2;
726 continue;
727 }
728
729 // Skip the %.
730 ++DiagStr;
731
732 // This must be a placeholder for a diagnostic argument. The format for a
733 // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
734 // The digit is a number from 0-9 indicating which argument this comes from.
735 // The modifier is a string of digits from the set [-a-z]+, arguments is a
736 // brace enclosed string.
737 const char *Modifier = nullptr, *Argument = nullptr;
738 unsigned ModifierLen = 0, ArgumentLen = 0;
739
740 // Check to see if we have a modifier. If so eat it.
741 if (!isDigit(DiagStr[0])) {
742 Modifier = DiagStr;
743 while (DiagStr[0] == '-' ||
744 (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
745 ++DiagStr;
746 ModifierLen = DiagStr-Modifier;
747
748 // If we have an argument, get it next.
749 if (DiagStr[0] == '{') {
750 ++DiagStr; // Skip {.
751 Argument = DiagStr;
752
753 DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
754 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 754, __PRETTY_FUNCTION__))
;
755 ArgumentLen = DiagStr-Argument;
756 ++DiagStr; // Skip }.
757 }
758 }
759
760 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 760, __PRETTY_FUNCTION__))
;
761 unsigned ArgNo = *DiagStr++ - '0';
762
763 // Only used for type diffing.
764 unsigned ArgNo2 = ArgNo;
765
766 DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo);
767 if (ModifierIs(Modifier, ModifierLen, "diff")) {
768 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 769, __PRETTY_FUNCTION__))
769 "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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 769, __PRETTY_FUNCTION__))
;
770 ++DiagStr; // Comma.
771 ArgNo2 = *DiagStr++ - '0';
772 DiagnosticsEngine::ArgumentKind Kind2 = getArgKind(ArgNo2);
773 if (Kind == DiagnosticsEngine::ak_qualtype &&
774 Kind2 == DiagnosticsEngine::ak_qualtype)
775 Kind = DiagnosticsEngine::ak_qualtype_pair;
776 else {
777 // %diff only supports QualTypes. For other kinds of arguments,
778 // use the default printing. For example, if the modifier is:
779 // "%diff{compare $ to $|other text}1,2"
780 // treat it as:
781 // "compare %1 to %2"
782 const char *ArgumentEnd = Argument + ArgumentLen;
783 const char *Pipe = ScanFormat(Argument, ArgumentEnd, '|');
784 assert(ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&((ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&
"Found too many '|'s in a %diff modifier!") ? static_cast<
void> (0) : __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd && \"Found too many '|'s in a %diff modifier!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 785, __PRETTY_FUNCTION__))
785 "Found too many '|'s in a %diff modifier!")((ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&
"Found too many '|'s in a %diff modifier!") ? static_cast<
void> (0) : __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd && \"Found too many '|'s in a %diff modifier!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 785, __PRETTY_FUNCTION__))
;
786 const char *FirstDollar = ScanFormat(Argument, Pipe, '$');
787 const char *SecondDollar = ScanFormat(FirstDollar + 1, Pipe, '$');
788 const char ArgStr1[] = { '%', static_cast<char>('0' + ArgNo) };
789 const char ArgStr2[] = { '%', static_cast<char>('0' + ArgNo2) };
790 FormatDiagnostic(Argument, FirstDollar, OutStr);
791 FormatDiagnostic(ArgStr1, ArgStr1 + 2, OutStr);
792 FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
793 FormatDiagnostic(ArgStr2, ArgStr2 + 2, OutStr);
794 FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
795 continue;
796 }
797 }
798
799 switch (Kind) {
800 // ---- STRINGS ----
801 case DiagnosticsEngine::ak_std_string: {
802 const std::string &S = getArgStdStr(ArgNo);
803 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 803, __PRETTY_FUNCTION__))
;
804 OutStr.append(S.begin(), S.end());
805 break;
806 }
807 case DiagnosticsEngine::ak_c_string: {
808 const char *S = getArgCStr(ArgNo);
809 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 809, __PRETTY_FUNCTION__))
;
810
811 // Don't crash if get passed a null pointer by accident.
812 if (!S)
813 S = "(null)";
814
815 OutStr.append(S, S + strlen(S));
816 break;
817 }
818 // ---- INTEGERS ----
819 case DiagnosticsEngine::ak_sint: {
820 int Val = getArgSInt(ArgNo);
821
822 if (ModifierIs(Modifier, ModifierLen, "select")) {
823 HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen,
824 OutStr);
825 } else if (ModifierIs(Modifier, ModifierLen, "s")) {
826 HandleIntegerSModifier(Val, OutStr);
827 } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
828 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
829 OutStr);
830 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
831 HandleOrdinalModifier((unsigned)Val, OutStr);
832 } else {
833 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 833, __PRETTY_FUNCTION__))
;
834 llvm::raw_svector_ostream(OutStr) << Val;
835 }
836 break;
837 }
838 case DiagnosticsEngine::ak_uint: {
839 unsigned Val = getArgUInt(ArgNo);
840
841 if (ModifierIs(Modifier, ModifierLen, "select")) {
842 HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
843 } else if (ModifierIs(Modifier, ModifierLen, "s")) {
844 HandleIntegerSModifier(Val, OutStr);
845 } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
846 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
847 OutStr);
848 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
849 HandleOrdinalModifier(Val, OutStr);
850 } else {
851 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 851, __PRETTY_FUNCTION__))
;
852 llvm::raw_svector_ostream(OutStr) << Val;
853 }
854 break;
855 }
856 // ---- TOKEN SPELLINGS ----
857 case DiagnosticsEngine::ak_tokenkind: {
858 tok::TokenKind Kind = static_cast<tok::TokenKind>(getRawArg(ArgNo));
859 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 859, __PRETTY_FUNCTION__))
;
860
861 llvm::raw_svector_ostream Out(OutStr);
862 if (const char *S = tok::getPunctuatorSpelling(Kind))
863 // Quoted token spelling for punctuators.
864 Out << '\'' << S << '\'';
865 else if (const char *S = tok::getKeywordSpelling(Kind))
866 // Unquoted token spelling for keywords.
867 Out << S;
868 else if (const char *S = getTokenDescForDiagnostic(Kind))
869 // Unquoted translatable token name.
870 Out << S;
871 else if (const char *S = tok::getTokenName(Kind))
872 // Debug name, shouldn't appear in user-facing diagnostics.
873 Out << '<' << S << '>';
874 else
875 Out << "(null)";
876 break;
877 }
878 // ---- NAMES and TYPES ----
879 case DiagnosticsEngine::ak_identifierinfo: {
880 const IdentifierInfo *II = getArgIdentifier(ArgNo);
881 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 881, __PRETTY_FUNCTION__))
;
882
883 // Don't crash if get passed a null pointer by accident.
884 if (!II) {
885 const char *S = "(null)";
886 OutStr.append(S, S + strlen(S));
887 continue;
888 }
889
890 llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
891 break;
892 }
893 case DiagnosticsEngine::ak_qualtype:
894 case DiagnosticsEngine::ak_declarationname:
895 case DiagnosticsEngine::ak_nameddecl:
896 case DiagnosticsEngine::ak_nestednamespec:
897 case DiagnosticsEngine::ak_declcontext:
898 case DiagnosticsEngine::ak_attr:
899 getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
900 StringRef(Modifier, ModifierLen),
901 StringRef(Argument, ArgumentLen),
902 FormattedArgs,
903 OutStr, QualTypeVals);
904 break;
905 case DiagnosticsEngine::ak_qualtype_pair:
906 // Create a struct with all the info needed for printing.
907 TemplateDiffTypes TDT;
908 TDT.FromType = getRawArg(ArgNo);
909 TDT.ToType = getRawArg(ArgNo2);
910 TDT.ElideType = getDiags()->ElideType;
911 TDT.ShowColors = getDiags()->ShowColors;
912 TDT.TemplateDiffUsed = false;
913 intptr_t val = reinterpret_cast<intptr_t>(&TDT);
914
915 const char *ArgumentEnd = Argument + ArgumentLen;
916 const char *Pipe = ScanFormat(Argument, ArgumentEnd, '|');
917
918 // Print the tree. If this diagnostic already has a tree, skip the
919 // second tree.
920 if (getDiags()->PrintTemplateTree && Tree.empty()) {
921 TDT.PrintFromType = true;
922 TDT.PrintTree = true;
923 getDiags()->ConvertArgToString(Kind, val,
924 StringRef(Modifier, ModifierLen),
925 StringRef(Argument, ArgumentLen),
926 FormattedArgs,
927 Tree, QualTypeVals);
928 // If there is no tree information, fall back to regular printing.
929 if (!Tree.empty()) {
930 FormatDiagnostic(Pipe + 1, ArgumentEnd, OutStr);
931 break;
932 }
933 }
934
935 // Non-tree printing, also the fall-back when tree printing fails.
936 // The fall-back is triggered when the types compared are not templates.
937 const char *FirstDollar = ScanFormat(Argument, ArgumentEnd, '$');
938 const char *SecondDollar = ScanFormat(FirstDollar + 1, ArgumentEnd, '$');
939
940 // Append before text
941 FormatDiagnostic(Argument, FirstDollar, OutStr);
942
943 // Append first type
944 TDT.PrintTree = false;
945 TDT.PrintFromType = true;
946 getDiags()->ConvertArgToString(Kind, val,
947 StringRef(Modifier, ModifierLen),
948 StringRef(Argument, ArgumentLen),
949 FormattedArgs,
950 OutStr, QualTypeVals);
951 if (!TDT.TemplateDiffUsed)
952 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
953 TDT.FromType));
954
955 // Append middle text
956 FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
957
958 // Append second type
959 TDT.PrintFromType = false;
960 getDiags()->ConvertArgToString(Kind, val,
961 StringRef(Modifier, ModifierLen),
962 StringRef(Argument, ArgumentLen),
963 FormattedArgs,
964 OutStr, QualTypeVals);
965 if (!TDT.TemplateDiffUsed)
966 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
967 TDT.ToType));
968
969 // Append end text
970 FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
971 break;
972 }
973
974 // Remember this argument info for subsequent formatting operations. Turn
975 // std::strings into a null terminated string to make it be the same case as
976 // all the other ones.
977 if (Kind == DiagnosticsEngine::ak_qualtype_pair)
978 continue;
979 else if (Kind != DiagnosticsEngine::ak_std_string)
980 FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
981 else
982 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string,
983 (intptr_t)getArgStdStr(ArgNo).c_str()));
984
985 }
986
987 // Append the type tree to the end of the diagnostics.
988 OutStr.append(Tree.begin(), Tree.end());
989}
990
991StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
992 StringRef Message)
993 : ID(ID), Level(Level), Loc(), Message(Message) { }
994
995StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level,
996 const Diagnostic &Info)
997 : ID(Info.getID()), Level(Level)
998{
999 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 1000, __PRETTY_FUNCTION__))
1000 "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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 1000, __PRETTY_FUNCTION__))
;
1001 if (Info.getLocation().isValid())
1002 Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager());
1003 SmallString<64> Message;
1004 Info.FormatDiagnostic(Message);
1005 this->Message.assign(Message.begin(), Message.end());
1006 this->Ranges.assign(Info.getRanges().begin(), Info.getRanges().end());
1007 this->FixIts.assign(Info.getFixItHints().begin(), Info.getFixItHints().end());
1008}
1009
1010StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
1011 StringRef Message, FullSourceLoc Loc,
1012 ArrayRef<CharSourceRange> Ranges,
1013 ArrayRef<FixItHint> FixIts)
1014 : ID(ID), Level(Level), Loc(Loc), Message(Message),
1015 Ranges(Ranges.begin(), Ranges.end()), FixIts(FixIts.begin(), FixIts.end())
1016{
1017}
1018
1019/// IncludeInDiagnosticCounts - This method (whose default implementation
1020/// returns true) indicates whether the diagnostics handled by this
1021/// DiagnosticConsumer should be included in the number of diagnostics
1022/// reported by DiagnosticsEngine.
1023bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; }
1024
1025void IgnoringDiagConsumer::anchor() { }
1026
1027ForwardingDiagnosticConsumer::~ForwardingDiagnosticConsumer() {}
1028
1029void ForwardingDiagnosticConsumer::HandleDiagnostic(
1030 DiagnosticsEngine::Level DiagLevel,
1031 const Diagnostic &Info) {
1032 Target.HandleDiagnostic(DiagLevel, Info);
1033}
1034
1035void ForwardingDiagnosticConsumer::clear() {
1036 DiagnosticConsumer::clear();
1037 Target.clear();
1038}
1039
1040bool ForwardingDiagnosticConsumer::IncludeInDiagnosticCounts() const {
1041 return Target.IncludeInDiagnosticCounts();
1042}
1043
1044PartialDiagnostic::StorageAllocator::StorageAllocator() {
1045 for (unsigned I = 0; I != NumCached; ++I)
1046 FreeList[I] = Cached + I;
1047 NumFreeListEntries = NumCached;
1048}
1049
1050PartialDiagnostic::StorageAllocator::~StorageAllocator() {
1051 // Don't assert if we are in a CrashRecovery context, as this invariant may
1052 // be invalidated during a crash.
1053 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 1055, __PRETTY_FUNCTION__))
1054 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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 1055, __PRETTY_FUNCTION__))
1055 "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~svn298304/tools/clang/lib/Basic/Diagnostic.cpp"
, 1055, __PRETTY_FUNCTION__))
;
1056}