Bug Summary

File:tools/clang/lib/Basic/Diagnostic.cpp
Warning:line 573, 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 SuppressAfterFatalError = true;
71 SuppressAllDiagnostics = false;
72 ElideType = true;
73 PrintTemplateTree = false;
74 ShowColors = false;
75 ShowOverloads = Ovl_All;
76
77 ErrorLimit = 0;
78 TemplateBacktraceLimit = 0;
79 ConstexprBacktraceLimit = 0;
80
81 Reset();
82}
83
84DiagnosticsEngine::~DiagnosticsEngine() {
85 // If we own the diagnostic client, destroy it first so that it can access the
86 // engine from its destructor.
87 setClient(nullptr);
88}
89
90void DiagnosticsEngine::setClient(DiagnosticConsumer *client,
91 bool ShouldOwnClient) {
92 Owner.reset(ShouldOwnClient ? client : nullptr);
93 Client = client;
94}
95
96void DiagnosticsEngine::pushMappings(SourceLocation Loc) {
97 DiagStateOnPushStack.push_back(GetCurDiagState());
98}
99
100bool DiagnosticsEngine::popMappings(SourceLocation Loc) {
101 if (DiagStateOnPushStack.empty())
102 return false;
103
104 if (DiagStateOnPushStack.back() != GetCurDiagState()) {
105 // State changed at some point between push/pop.
106 PushDiagStatePoint(DiagStateOnPushStack.back(), Loc);
107 }
108 DiagStateOnPushStack.pop_back();
109 return true;
110}
111
112void DiagnosticsEngine::Reset() {
113 ErrorOccurred = false;
114 UncompilableErrorOccurred = false;
115 FatalErrorOccurred = false;
116 UnrecoverableErrorOccurred = false;
117
118 NumWarnings = 0;
119 NumErrors = 0;
120 TrapNumErrorsOccurred = 0;
121 TrapNumUnrecoverableErrorsOccurred = 0;
122
123 CurDiagID = ~0U;
124 LastDiagLevel = DiagnosticIDs::Ignored;
125 DelayedDiagID = 0;
126
127 // Clear state related to #pragma diagnostic.
128 DiagStates.clear();
129 DiagStatesByLoc.clear();
130 DiagStateOnPushStack.clear();
131
132 // Create a DiagState and DiagStatePoint representing diagnostic changes
133 // through command-line.
134 DiagStates.emplace_back();
135 DiagStatesByLoc.appendFirst(&DiagStates.back());
136}
137
138void DiagnosticsEngine::SetDelayedDiagnostic(unsigned DiagID, StringRef Arg1,
139 StringRef Arg2) {
140 if (DelayedDiagID)
141 return;
142
143 DelayedDiagID = DiagID;
144 DelayedDiagArg1 = Arg1.str();
145 DelayedDiagArg2 = Arg2.str();
146}
147
148void DiagnosticsEngine::ReportDelayed() {
149 unsigned ID = DelayedDiagID;
150 DelayedDiagID = 0;
151 Report(ID) << DelayedDiagArg1 << DelayedDiagArg2;
152}
153
154void DiagnosticsEngine::DiagStateMap::appendFirst(
155 DiagState *State) {
156 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 156, __PRETTY_FUNCTION__))
;
157 FirstDiagState = CurDiagState = State;
158 CurDiagStateLoc = SourceLocation();
159}
160
161void DiagnosticsEngine::DiagStateMap::append(SourceManager &SrcMgr,
162 SourceLocation Loc,
163 DiagState *State) {
164 CurDiagState = State;
165 CurDiagStateLoc = Loc;
166
167 std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedLoc(Loc);
168 unsigned Offset = Decomp.second;
169 for (File *F = getFile(SrcMgr, Decomp.first); F;
170 Offset = F->ParentOffset, F = F->Parent) {
171 F->HasLocalTransitions = true;
172 auto &Last = F->StateTransitions.back();
173 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 173, __PRETTY_FUNCTION__))
;
174
175 if (Last.Offset == Offset) {
176 if (Last.State == State)
177 break;
178 Last.State = State;
179 continue;
180 }
181
182 F->StateTransitions.push_back({State, Offset});
183 }
184}
185
186DiagnosticsEngine::DiagState *
187DiagnosticsEngine::DiagStateMap::lookup(SourceManager &SrcMgr,
188 SourceLocation Loc) const {
189 // Common case: we have not seen any diagnostic pragmas.
190 if (Files.empty())
191 return FirstDiagState;
192
193 std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedLoc(Loc);
194 const File *F = getFile(SrcMgr, Decomp.first);
195 return F->lookup(Decomp.second);
196}
197
198DiagnosticsEngine::DiagState *
199DiagnosticsEngine::DiagStateMap::File::lookup(unsigned Offset) const {
200 auto OnePastIt = std::upper_bound(
201 StateTransitions.begin(), StateTransitions.end(), Offset,
202 [](unsigned Offset, const DiagStatePoint &P) {
203 return Offset < P.Offset;
204 });
205 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 205, __PRETTY_FUNCTION__))
;
206 return OnePastIt[-1].State;
207}
208
209DiagnosticsEngine::DiagStateMap::File *
210DiagnosticsEngine::DiagStateMap::getFile(SourceManager &SrcMgr,
211 FileID ID) const {
212 // Get or insert the File for this ID.
213 auto Range = Files.equal_range(ID);
214 if (Range.first != Range.second)
215 return &Range.first->second;
216 auto &F = Files.insert(Range.first, std::make_pair(ID, File()))->second;
217
218 // We created a new File; look up the diagnostic state at the start of it and
219 // initialize it.
220 if (ID.isValid()) {
221 std::pair<FileID, unsigned> Decomp = SrcMgr.getDecomposedIncludedLoc(ID);
222 F.Parent = getFile(SrcMgr, Decomp.first);
223 F.ParentOffset = Decomp.second;
224 F.StateTransitions.push_back({F.Parent->lookup(Decomp.second), 0});
225 } else {
226 // This is the (imaginary) root file into which we pretend all top-level
227 // files are included; it descends from the initial state.
228 //
229 // FIXME: This doesn't guarantee that we use the same ordering as
230 // isBeforeInTranslationUnit in the cases where someone invented another
231 // top-level file and added diagnostic pragmas to it. See the code at the
232 // end of isBeforeInTranslationUnit for the quirks it deals with.
233 F.StateTransitions.push_back({FirstDiagState, 0});
234 }
235 return &F;
236}
237
238void DiagnosticsEngine::PushDiagStatePoint(DiagState *State,
239 SourceLocation Loc) {
240 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 240, __PRETTY_FUNCTION__))
;
241 DiagStatesByLoc.append(*SourceMgr, Loc, State);
242}
243
244void DiagnosticsEngine::setSeverity(diag::kind Diag, diag::Severity Map,
245 SourceLocation L) {
246 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 247, __PRETTY_FUNCTION__))
247 "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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 247, __PRETTY_FUNCTION__))
;
248 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 250, __PRETTY_FUNCTION__))
249 (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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 250, __PRETTY_FUNCTION__))
250 "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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 250, __PRETTY_FUNCTION__))
;
251 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 251, __PRETTY_FUNCTION__))
;
252
253 // Don't allow a mapping to a warning override an error/fatal mapping.
254 bool WasUpgradedFromWarning = false;
255 if (Map == diag::Severity::Warning) {
256 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
257 if (Info.getSeverity() == diag::Severity::Error ||
258 Info.getSeverity() == diag::Severity::Fatal) {
259 Map = Info.getSeverity();
260 WasUpgradedFromWarning = true;
261 }
262 }
263 DiagnosticMapping Mapping = makeUserMapping(Map, L);
264 Mapping.setUpgradedFromWarning(WasUpgradedFromWarning);
265
266 // Common case; setting all the diagnostics of a group in one place.
267 if ((L.isInvalid() || L == DiagStatesByLoc.getCurDiagStateLoc()) &&
268 DiagStatesByLoc.getCurDiagState()) {
269 // FIXME: This is theoretically wrong: if the current state is shared with
270 // some other location (via push/pop) we will change the state for that
271 // other location as well. This cannot currently happen, as we can't update
272 // the diagnostic state at the same location at which we pop.
273 DiagStatesByLoc.getCurDiagState()->setMapping(Diag, Mapping);
274 return;
275 }
276
277 // A diagnostic pragma occurred, create a new DiagState initialized with
278 // the current one and a new DiagStatePoint to record at which location
279 // the new state became active.
280 DiagStates.push_back(*GetCurDiagState());
281 DiagStates.back().setMapping(Diag, Mapping);
282 PushDiagStatePoint(&DiagStates.back(), L);
283}
284
285bool DiagnosticsEngine::setSeverityForGroup(diag::Flavor Flavor,
286 StringRef Group, diag::Severity Map,
287 SourceLocation Loc) {
288 // Get the diagnostics in this group.
289 SmallVector<diag::kind, 256> GroupDiags;
290 if (Diags->getDiagnosticsInGroup(Flavor, Group, GroupDiags))
291 return true;
292
293 // Set the mapping.
294 for (diag::kind Diag : GroupDiags)
295 setSeverity(Diag, Map, Loc);
296
297 return false;
298}
299
300bool DiagnosticsEngine::setDiagnosticGroupWarningAsError(StringRef Group,
301 bool Enabled) {
302 // If we are enabling this feature, just set the diagnostic mappings to map to
303 // errors.
304 if (Enabled)
305 return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
306 diag::Severity::Error);
307
308 // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
309 // potentially downgrade anything already mapped to be a warning.
310
311 // Get the diagnostics in this group.
312 SmallVector<diag::kind, 8> GroupDiags;
313 if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
314 GroupDiags))
315 return true;
316
317 // Perform the mapping change.
318 for (diag::kind Diag : GroupDiags) {
319 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
320
321 if (Info.getSeverity() == diag::Severity::Error ||
322 Info.getSeverity() == diag::Severity::Fatal)
323 Info.setSeverity(diag::Severity::Warning);
324
325 Info.setNoWarningAsError(true);
326 }
327
328 return false;
329}
330
331bool DiagnosticsEngine::setDiagnosticGroupErrorAsFatal(StringRef Group,
332 bool Enabled) {
333 // If we are enabling this feature, just set the diagnostic mappings to map to
334 // fatal errors.
335 if (Enabled)
336 return setSeverityForGroup(diag::Flavor::WarningOrError, Group,
337 diag::Severity::Fatal);
338
339 // Otherwise, we want to set the diagnostic mapping's "no Wfatal-errors" bit,
340 // and potentially downgrade anything already mapped to be a fatal error.
341
342 // Get the diagnostics in this group.
343 SmallVector<diag::kind, 8> GroupDiags;
344 if (Diags->getDiagnosticsInGroup(diag::Flavor::WarningOrError, Group,
345 GroupDiags))
346 return true;
347
348 // Perform the mapping change.
349 for (diag::kind Diag : GroupDiags) {
350 DiagnosticMapping &Info = GetCurDiagState()->getOrAddMapping(Diag);
351
352 if (Info.getSeverity() == diag::Severity::Fatal)
353 Info.setSeverity(diag::Severity::Error);
354
355 Info.setNoErrorAsFatal(true);
356 }
357
358 return false;
359}
360
361void DiagnosticsEngine::setSeverityForAll(diag::Flavor Flavor,
362 diag::Severity Map,
363 SourceLocation Loc) {
364 // Get all the diagnostics.
365 SmallVector<diag::kind, 64> AllDiags;
366 Diags->getAllDiagnostics(Flavor, AllDiags);
367
368 // Set the mapping.
369 for (diag::kind Diag : AllDiags)
370 if (Diags->isBuiltinWarningOrExtension(Diag))
371 setSeverity(Diag, Map, Loc);
372}
373
374void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) {
375 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 375, __PRETTY_FUNCTION__))
;
376
377 CurDiagLoc = storedDiag.getLocation();
378 CurDiagID = storedDiag.getID();
379 NumDiagArgs = 0;
380
381 DiagRanges.clear();
382 DiagRanges.append(storedDiag.range_begin(), storedDiag.range_end());
383
384 DiagFixItHints.clear();
385 DiagFixItHints.append(storedDiag.fixit_begin(), storedDiag.fixit_end());
386
387 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 387, __PRETTY_FUNCTION__))
;
388 Level DiagLevel = storedDiag.getLevel();
389 Diagnostic Info(this, storedDiag.getMessage());
390 Client->HandleDiagnostic(DiagLevel, Info);
391 if (Client->IncludeInDiagnosticCounts()) {
392 if (DiagLevel == DiagnosticsEngine::Warning)
393 ++NumWarnings;
394 }
395
396 CurDiagID = ~0U;
397}
398
399bool DiagnosticsEngine::EmitCurrentDiagnostic(bool Force) {
400 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 400, __PRETTY_FUNCTION__))
;
401
402 bool Emitted;
403 if (Force) {
404 Diagnostic Info(this);
405
406 // Figure out the diagnostic level of this message.
407 DiagnosticIDs::Level DiagLevel
408 = Diags->getDiagnosticLevel(Info.getID(), Info.getLocation(), *this);
409
410 Emitted = (DiagLevel != DiagnosticIDs::Ignored);
411 if (Emitted) {
412 // Emit the diagnostic regardless of suppression level.
413 Diags->EmitDiag(*this, DiagLevel);
414 }
415 } else {
416 // Process the diagnostic, sending the accumulated information to the
417 // DiagnosticConsumer.
418 Emitted = ProcessDiag();
419 }
420
421 // Clear out the current diagnostic object.
422 Clear();
423
424 // If there was a delayed diagnostic, emit it now.
425 if (!Force && DelayedDiagID)
426 ReportDelayed();
427
428 return Emitted;
429}
430
431
432DiagnosticConsumer::~DiagnosticConsumer() {}
433
434void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
435 const Diagnostic &Info) {
436 if (!IncludeInDiagnosticCounts())
437 return;
438
439 if (DiagLevel == DiagnosticsEngine::Warning)
440 ++NumWarnings;
441 else if (DiagLevel >= DiagnosticsEngine::Error)
442 ++NumErrors;
443}
444
445/// ModifierIs - Return true if the specified modifier matches specified string.
446template <std::size_t StrLen>
447static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
448 const char (&Str)[StrLen]) {
449 return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
450}
451
452/// ScanForward - Scans forward, looking for the given character, skipping
453/// nested clauses and escaped characters.
454static const char *ScanFormat(const char *I, const char *E, char Target) {
455 unsigned Depth = 0;
456
457 for ( ; I != E; ++I) {
458 if (Depth == 0 && *I == Target) return I;
459 if (Depth != 0 && *I == '}') Depth--;
460
461 if (*I == '%') {
462 I++;
463 if (I == E) break;
464
465 // Escaped characters get implicitly skipped here.
466
467 // Format specifier.
468 if (!isDigit(*I) && !isPunctuation(*I)) {
469 for (I++; I != E && !isDigit(*I) && *I != '{'; I++) ;
470 if (I == E) break;
471 if (*I == '{')
472 Depth++;
473 }
474 }
475 }
476 return E;
477}
478
479/// HandleSelectModifier - Handle the integer 'select' modifier. This is used
480/// like this: %select{foo|bar|baz}2. This means that the integer argument
481/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
482/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
483/// This is very useful for certain classes of variant diagnostics.
484static void HandleSelectModifier(const Diagnostic &DInfo, unsigned ValNo,
485 const char *Argument, unsigned ArgumentLen,
486 SmallVectorImpl<char> &OutStr) {
487 const char *ArgumentEnd = Argument+ArgumentLen;
488
489 // Skip over 'ValNo' |'s.
490 while (ValNo) {
491 const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
492 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 493, __PRETTY_FUNCTION__))
493 " 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 493, __PRETTY_FUNCTION__))
;
494 Argument = NextVal+1; // Skip this string.
495 --ValNo;
496 }
497
498 // Get the end of the value. This is either the } or the |.
499 const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
500
501 // Recursively format the result of the select clause into the output string.
502 DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
503}
504
505/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the
506/// letter 's' to the string if the value is not 1. This is used in cases like
507/// this: "you idiot, you have %4 parameter%s4!".
508static void HandleIntegerSModifier(unsigned ValNo,
509 SmallVectorImpl<char> &OutStr) {
510 if (ValNo != 1)
511 OutStr.push_back('s');
512}
513
514/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This
515/// prints the ordinal form of the given integer, with 1 corresponding
516/// to the first ordinal. Currently this is hard-coded to use the
517/// English form.
518static void HandleOrdinalModifier(unsigned ValNo,
519 SmallVectorImpl<char> &OutStr) {
520 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 520, __PRETTY_FUNCTION__))
;
521
522 llvm::raw_svector_ostream Out(OutStr);
523
524 // We could use text forms for the first N ordinals, but the numeric
525 // forms are actually nicer in diagnostics because they stand out.
526 Out << ValNo << llvm::getOrdinalSuffix(ValNo);
527}
528
529
530/// PluralNumber - Parse an unsigned integer and advance Start.
531static unsigned PluralNumber(const char *&Start, const char *End) {
532 // Programming 101: Parse a decimal number :-)
533 unsigned Val = 0;
14
'Val' initialized to 0
534 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 539
535 Val *= 10;
536 Val += *Start - '0';
537 ++Start;
538 }
539 return Val;
18
Returning zero (loaded from 'Val')
540}
541
542/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
543static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) {
544 if (*Start != '[') {
545 unsigned Ref = PluralNumber(Start, End);
546 return Ref == Val;
547 }
548
549 ++Start;
550 unsigned Low = PluralNumber(Start, End);
551 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 551, __PRETTY_FUNCTION__))
;
552 ++Start;
553 unsigned High = PluralNumber(Start, End);
554 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 554, __PRETTY_FUNCTION__))
;
555 ++Start;
556 return Low <= Val && Val <= High;
557}
558
559/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
560static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) {
561 // Empty condition?
562 if (*Start == ':')
9
Taking false branch
563 return true;
564
565 while (1) {
10
Loop condition is true. Entering loop body
566 char C = *Start;
567 if (C == '%') {
11
Assuming the condition is true
12
Taking true branch
568 // Modulo expression
569 ++Start;
570 unsigned Arg = PluralNumber(Start, End);
13
Calling 'PluralNumber'
19
Returning from 'PluralNumber'
20
'Arg' initialized to 0
571 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 571, __PRETTY_FUNCTION__))
;
572 ++Start;
573 unsigned ValMod = ValNo % Arg;
21
Division by zero
574 if (TestPluralRange(ValMod, Start, End))
575 return true;
576 } else {
577 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 578, __PRETTY_FUNCTION__))
578 "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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 578, __PRETTY_FUNCTION__))
;
579 // Range expression
580 if (TestPluralRange(ValNo, Start, End))
581 return true;
582 }
583
584 // Scan for next or-expr part.
585 Start = std::find(Start, End, ',');
586 if (Start == End)
587 break;
588 ++Start;
589 }
590 return false;
591}
592
593/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
594/// for complex plural forms, or in languages where all plurals are complex.
595/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
596/// conditions that are tested in order, the form corresponding to the first
597/// that applies being emitted. The empty condition is always true, making the
598/// last form a default case.
599/// Conditions are simple boolean expressions, where n is the number argument.
600/// Here are the rules.
601/// condition := expression | empty
602/// empty := -> always true
603/// expression := numeric [',' expression] -> logical or
604/// numeric := range -> true if n in range
605/// | '%' number '=' range -> true if n % number in range
606/// range := number
607/// | '[' number ',' number ']' -> ranges are inclusive both ends
608///
609/// Here are some examples from the GNU gettext manual written in this form:
610/// English:
611/// {1:form0|:form1}
612/// Latvian:
613/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
614/// Gaeilge:
615/// {1:form0|2:form1|:form2}
616/// Romanian:
617/// {1:form0|0,%100=[1,19]:form1|:form2}
618/// Lithuanian:
619/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
620/// Russian (requires repeated form):
621/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
622/// Slovak
623/// {1:form0|[2,4]:form1|:form2}
624/// Polish (requires repeated form):
625/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
626static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo,
627 const char *Argument, unsigned ArgumentLen,
628 SmallVectorImpl<char> &OutStr) {
629 const char *ArgumentEnd = Argument + ArgumentLen;
630 while (1) {
1
Loop condition is true. Entering loop body
631 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 631, __PRETTY_FUNCTION__))
;
632 const char *ExprEnd = Argument;
633 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 637
634 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 634, __PRETTY_FUNCTION__))
;
635 ++ExprEnd;
636 }
637 if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
8
Calling 'EvalPluralExpr'
638 Argument = ExprEnd + 1;
639 ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
640
641 // Recursively format the result of the plural clause into the
642 // output string.
643 DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
644 return;
645 }
646 Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
647 }
648}
649
650/// \brief Returns the friendly description for a token kind that will appear
651/// without quotes in diagnostic messages. These strings may be translatable in
652/// future.
653static const char *getTokenDescForDiagnostic(tok::TokenKind Kind) {
654 switch (Kind) {
655 case tok::identifier:
656 return "identifier";
657 default:
658 return nullptr;
659 }
660}
661
662/// FormatDiagnostic - Format this diagnostic into a string, substituting the
663/// formal arguments into the %0 slots. The result is appended onto the Str
664/// array.
665void Diagnostic::
666FormatDiagnostic(SmallVectorImpl<char> &OutStr) const {
667 if (!StoredDiagMessage.empty()) {
668 OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end());
669 return;
670 }
671
672 StringRef Diag =
673 getDiags()->getDiagnosticIDs()->getDescription(getID());
674
675 FormatDiagnostic(Diag.begin(), Diag.end(), OutStr);
676}
677
678void Diagnostic::
679FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
680 SmallVectorImpl<char> &OutStr) const {
681
682 // When the diagnostic string is only "%0", the entire string is being given
683 // by an outside source. Remove unprintable characters from this string
684 // and skip all the other string processing.
685 if (DiagEnd - DiagStr == 2 &&
686 StringRef(DiagStr, DiagEnd - DiagStr).equals("%0") &&
687 getArgKind(0) == DiagnosticsEngine::ak_std_string) {
688 const std::string &S = getArgStdStr(0);
689 for (char c : S) {
690 if (llvm::sys::locale::isPrint(c) || c == '\t') {
691 OutStr.push_back(c);
692 }
693 }
694 return;
695 }
696
697 /// FormattedArgs - Keep track of all of the arguments formatted by
698 /// ConvertArgToString and pass them into subsequent calls to
699 /// ConvertArgToString, allowing the implementation to avoid redundancies in
700 /// obvious cases.
701 SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs;
702
703 /// QualTypeVals - Pass a vector of arrays so that QualType names can be
704 /// compared to see if more information is needed to be printed.
705 SmallVector<intptr_t, 2> QualTypeVals;
706 SmallVector<char, 64> Tree;
707
708 for (unsigned i = 0, e = getNumArgs(); i < e; ++i)
709 if (getArgKind(i) == DiagnosticsEngine::ak_qualtype)
710 QualTypeVals.push_back(getRawArg(i));
711
712 while (DiagStr != DiagEnd) {
713 if (DiagStr[0] != '%') {
714 // Append non-%0 substrings to Str if we have one.
715 const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
716 OutStr.append(DiagStr, StrEnd);
717 DiagStr = StrEnd;
718 continue;
719 } else if (isPunctuation(DiagStr[1])) {
720 OutStr.push_back(DiagStr[1]); // %% -> %.
721 DiagStr += 2;
722 continue;
723 }
724
725 // Skip the %.
726 ++DiagStr;
727
728 // This must be a placeholder for a diagnostic argument. The format for a
729 // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
730 // The digit is a number from 0-9 indicating which argument this comes from.
731 // The modifier is a string of digits from the set [-a-z]+, arguments is a
732 // brace enclosed string.
733 const char *Modifier = nullptr, *Argument = nullptr;
734 unsigned ModifierLen = 0, ArgumentLen = 0;
735
736 // Check to see if we have a modifier. If so eat it.
737 if (!isDigit(DiagStr[0])) {
738 Modifier = DiagStr;
739 while (DiagStr[0] == '-' ||
740 (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
741 ++DiagStr;
742 ModifierLen = DiagStr-Modifier;
743
744 // If we have an argument, get it next.
745 if (DiagStr[0] == '{') {
746 ++DiagStr; // Skip {.
747 Argument = DiagStr;
748
749 DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
750 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 750, __PRETTY_FUNCTION__))
;
751 ArgumentLen = DiagStr-Argument;
752 ++DiagStr; // Skip }.
753 }
754 }
755
756 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 756, __PRETTY_FUNCTION__))
;
757 unsigned ArgNo = *DiagStr++ - '0';
758
759 // Only used for type diffing.
760 unsigned ArgNo2 = ArgNo;
761
762 DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo);
763 if (ModifierIs(Modifier, ModifierLen, "diff")) {
764 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 765, __PRETTY_FUNCTION__))
765 "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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 765, __PRETTY_FUNCTION__))
;
766 ++DiagStr; // Comma.
767 ArgNo2 = *DiagStr++ - '0';
768 DiagnosticsEngine::ArgumentKind Kind2 = getArgKind(ArgNo2);
769 if (Kind == DiagnosticsEngine::ak_qualtype &&
770 Kind2 == DiagnosticsEngine::ak_qualtype)
771 Kind = DiagnosticsEngine::ak_qualtype_pair;
772 else {
773 // %diff only supports QualTypes. For other kinds of arguments,
774 // use the default printing. For example, if the modifier is:
775 // "%diff{compare $ to $|other text}1,2"
776 // treat it as:
777 // "compare %1 to %2"
778 const char *ArgumentEnd = Argument + ArgumentLen;
779 const char *Pipe = ScanFormat(Argument, ArgumentEnd, '|');
780 assert(ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&((ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&
"Found too many '|'s in a %diff modifier!") ? static_cast<
void> (0) : __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd && \"Found too many '|'s in a %diff modifier!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 781, __PRETTY_FUNCTION__))
781 "Found too many '|'s in a %diff modifier!")((ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd &&
"Found too many '|'s in a %diff modifier!") ? static_cast<
void> (0) : __assert_fail ("ScanFormat(Pipe + 1, ArgumentEnd, '|') == ArgumentEnd && \"Found too many '|'s in a %diff modifier!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 781, __PRETTY_FUNCTION__))
;
782 const char *FirstDollar = ScanFormat(Argument, Pipe, '$');
783 const char *SecondDollar = ScanFormat(FirstDollar + 1, Pipe, '$');
784 const char ArgStr1[] = { '%', static_cast<char>('0' + ArgNo) };
785 const char ArgStr2[] = { '%', static_cast<char>('0' + ArgNo2) };
786 FormatDiagnostic(Argument, FirstDollar, OutStr);
787 FormatDiagnostic(ArgStr1, ArgStr1 + 2, OutStr);
788 FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
789 FormatDiagnostic(ArgStr2, ArgStr2 + 2, OutStr);
790 FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
791 continue;
792 }
793 }
794
795 switch (Kind) {
796 // ---- STRINGS ----
797 case DiagnosticsEngine::ak_std_string: {
798 const std::string &S = getArgStdStr(ArgNo);
799 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 799, __PRETTY_FUNCTION__))
;
800 OutStr.append(S.begin(), S.end());
801 break;
802 }
803 case DiagnosticsEngine::ak_c_string: {
804 const char *S = getArgCStr(ArgNo);
805 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 805, __PRETTY_FUNCTION__))
;
806
807 // Don't crash if get passed a null pointer by accident.
808 if (!S)
809 S = "(null)";
810
811 OutStr.append(S, S + strlen(S));
812 break;
813 }
814 // ---- INTEGERS ----
815 case DiagnosticsEngine::ak_sint: {
816 int Val = getArgSInt(ArgNo);
817
818 if (ModifierIs(Modifier, ModifierLen, "select")) {
819 HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen,
820 OutStr);
821 } else if (ModifierIs(Modifier, ModifierLen, "s")) {
822 HandleIntegerSModifier(Val, OutStr);
823 } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
824 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
825 OutStr);
826 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
827 HandleOrdinalModifier((unsigned)Val, OutStr);
828 } else {
829 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 829, __PRETTY_FUNCTION__))
;
830 llvm::raw_svector_ostream(OutStr) << Val;
831 }
832 break;
833 }
834 case DiagnosticsEngine::ak_uint: {
835 unsigned Val = getArgUInt(ArgNo);
836
837 if (ModifierIs(Modifier, ModifierLen, "select")) {
838 HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
839 } else if (ModifierIs(Modifier, ModifierLen, "s")) {
840 HandleIntegerSModifier(Val, OutStr);
841 } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
842 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
843 OutStr);
844 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
845 HandleOrdinalModifier(Val, OutStr);
846 } else {
847 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 847, __PRETTY_FUNCTION__))
;
848 llvm::raw_svector_ostream(OutStr) << Val;
849 }
850 break;
851 }
852 // ---- TOKEN SPELLINGS ----
853 case DiagnosticsEngine::ak_tokenkind: {
854 tok::TokenKind Kind = static_cast<tok::TokenKind>(getRawArg(ArgNo));
855 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 855, __PRETTY_FUNCTION__))
;
856
857 llvm::raw_svector_ostream Out(OutStr);
858 if (const char *S = tok::getPunctuatorSpelling(Kind))
859 // Quoted token spelling for punctuators.
860 Out << '\'' << S << '\'';
861 else if (const char *S = tok::getKeywordSpelling(Kind))
862 // Unquoted token spelling for keywords.
863 Out << S;
864 else if (const char *S = getTokenDescForDiagnostic(Kind))
865 // Unquoted translatable token name.
866 Out << S;
867 else if (const char *S = tok::getTokenName(Kind))
868 // Debug name, shouldn't appear in user-facing diagnostics.
869 Out << '<' << S << '>';
870 else
871 Out << "(null)";
872 break;
873 }
874 // ---- NAMES and TYPES ----
875 case DiagnosticsEngine::ak_identifierinfo: {
876 const IdentifierInfo *II = getArgIdentifier(ArgNo);
877 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 877, __PRETTY_FUNCTION__))
;
878
879 // Don't crash if get passed a null pointer by accident.
880 if (!II) {
881 const char *S = "(null)";
882 OutStr.append(S, S + strlen(S));
883 continue;
884 }
885
886 llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
887 break;
888 }
889 case DiagnosticsEngine::ak_qualtype:
890 case DiagnosticsEngine::ak_declarationname:
891 case DiagnosticsEngine::ak_nameddecl:
892 case DiagnosticsEngine::ak_nestednamespec:
893 case DiagnosticsEngine::ak_declcontext:
894 case DiagnosticsEngine::ak_attr:
895 getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
896 StringRef(Modifier, ModifierLen),
897 StringRef(Argument, ArgumentLen),
898 FormattedArgs,
899 OutStr, QualTypeVals);
900 break;
901 case DiagnosticsEngine::ak_qualtype_pair:
902 // Create a struct with all the info needed for printing.
903 TemplateDiffTypes TDT;
904 TDT.FromType = getRawArg(ArgNo);
905 TDT.ToType = getRawArg(ArgNo2);
906 TDT.ElideType = getDiags()->ElideType;
907 TDT.ShowColors = getDiags()->ShowColors;
908 TDT.TemplateDiffUsed = false;
909 intptr_t val = reinterpret_cast<intptr_t>(&TDT);
910
911 const char *ArgumentEnd = Argument + ArgumentLen;
912 const char *Pipe = ScanFormat(Argument, ArgumentEnd, '|');
913
914 // Print the tree. If this diagnostic already has a tree, skip the
915 // second tree.
916 if (getDiags()->PrintTemplateTree && Tree.empty()) {
917 TDT.PrintFromType = true;
918 TDT.PrintTree = true;
919 getDiags()->ConvertArgToString(Kind, val,
920 StringRef(Modifier, ModifierLen),
921 StringRef(Argument, ArgumentLen),
922 FormattedArgs,
923 Tree, QualTypeVals);
924 // If there is no tree information, fall back to regular printing.
925 if (!Tree.empty()) {
926 FormatDiagnostic(Pipe + 1, ArgumentEnd, OutStr);
927 break;
928 }
929 }
930
931 // Non-tree printing, also the fall-back when tree printing fails.
932 // The fall-back is triggered when the types compared are not templates.
933 const char *FirstDollar = ScanFormat(Argument, ArgumentEnd, '$');
934 const char *SecondDollar = ScanFormat(FirstDollar + 1, ArgumentEnd, '$');
935
936 // Append before text
937 FormatDiagnostic(Argument, FirstDollar, OutStr);
938
939 // Append first type
940 TDT.PrintTree = false;
941 TDT.PrintFromType = true;
942 getDiags()->ConvertArgToString(Kind, val,
943 StringRef(Modifier, ModifierLen),
944 StringRef(Argument, ArgumentLen),
945 FormattedArgs,
946 OutStr, QualTypeVals);
947 if (!TDT.TemplateDiffUsed)
948 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
949 TDT.FromType));
950
951 // Append middle text
952 FormatDiagnostic(FirstDollar + 1, SecondDollar, OutStr);
953
954 // Append second type
955 TDT.PrintFromType = false;
956 getDiags()->ConvertArgToString(Kind, val,
957 StringRef(Modifier, ModifierLen),
958 StringRef(Argument, ArgumentLen),
959 FormattedArgs,
960 OutStr, QualTypeVals);
961 if (!TDT.TemplateDiffUsed)
962 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_qualtype,
963 TDT.ToType));
964
965 // Append end text
966 FormatDiagnostic(SecondDollar + 1, Pipe, OutStr);
967 break;
968 }
969
970 // Remember this argument info for subsequent formatting operations. Turn
971 // std::strings into a null terminated string to make it be the same case as
972 // all the other ones.
973 if (Kind == DiagnosticsEngine::ak_qualtype_pair)
974 continue;
975 else if (Kind != DiagnosticsEngine::ak_std_string)
976 FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
977 else
978 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string,
979 (intptr_t)getArgStdStr(ArgNo).c_str()));
980
981 }
982
983 // Append the type tree to the end of the diagnostics.
984 OutStr.append(Tree.begin(), Tree.end());
985}
986
987StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
988 StringRef Message)
989 : ID(ID), Level(Level), Loc(), Message(Message) { }
990
991StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level,
992 const Diagnostic &Info)
993 : ID(Info.getID()), Level(Level)
994{
995 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 996, __PRETTY_FUNCTION__))
996 "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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 996, __PRETTY_FUNCTION__))
;
997 if (Info.getLocation().isValid())
998 Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager());
999 SmallString<64> Message;
1000 Info.FormatDiagnostic(Message);
1001 this->Message.assign(Message.begin(), Message.end());
1002 this->Ranges.assign(Info.getRanges().begin(), Info.getRanges().end());
1003 this->FixIts.assign(Info.getFixItHints().begin(), Info.getFixItHints().end());
1004}
1005
1006StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
1007 StringRef Message, FullSourceLoc Loc,
1008 ArrayRef<CharSourceRange> Ranges,
1009 ArrayRef<FixItHint> FixIts)
1010 : ID(ID), Level(Level), Loc(Loc), Message(Message),
1011 Ranges(Ranges.begin(), Ranges.end()), FixIts(FixIts.begin(), FixIts.end())
1012{
1013}
1014
1015/// IncludeInDiagnosticCounts - This method (whose default implementation
1016/// returns true) indicates whether the diagnostics handled by this
1017/// DiagnosticConsumer should be included in the number of diagnostics
1018/// reported by DiagnosticsEngine.
1019bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; }
1020
1021void IgnoringDiagConsumer::anchor() { }
1022
1023ForwardingDiagnosticConsumer::~ForwardingDiagnosticConsumer() {}
1024
1025void ForwardingDiagnosticConsumer::HandleDiagnostic(
1026 DiagnosticsEngine::Level DiagLevel,
1027 const Diagnostic &Info) {
1028 Target.HandleDiagnostic(DiagLevel, Info);
1029}
1030
1031void ForwardingDiagnosticConsumer::clear() {
1032 DiagnosticConsumer::clear();
1033 Target.clear();
1034}
1035
1036bool ForwardingDiagnosticConsumer::IncludeInDiagnosticCounts() const {
1037 return Target.IncludeInDiagnosticCounts();
1038}
1039
1040PartialDiagnostic::StorageAllocator::StorageAllocator() {
1041 for (unsigned I = 0; I != NumCached; ++I)
1042 FreeList[I] = Cached + I;
1043 NumFreeListEntries = NumCached;
1044}
1045
1046PartialDiagnostic::StorageAllocator::~StorageAllocator() {
1047 // Don't assert if we are in a CrashRecovery context, as this invariant may
1048 // be invalidated during a crash.
1049 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 1051, __PRETTY_FUNCTION__))
1050 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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 1051, __PRETTY_FUNCTION__))
1051 "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~svn303373/tools/clang/lib/Basic/Diagnostic.cpp"
, 1051, __PRETTY_FUNCTION__))
;
1052}