clang-tools  5.0.0
PPCallbacksTracker.cpp
Go to the documentation of this file.
1 //===--- PPCallbacksTracker.cpp - Preprocessor tracker -*--*---------------===//
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 /// \file
11 /// \brief Implementations for preprocessor tracking.
12 ///
13 /// See the header for details.
14 ///
15 //===----------------------------------------------------------------------===//
16 
17 #include "PPCallbacksTracker.h"
18 #include "clang/Lex/MacroArgs.h"
19 #include "llvm/Support/raw_ostream.h"
20 
21 // Utility functions.
22 
23 // Get a "file:line:column" source location string.
24 static std::string getSourceLocationString(clang::Preprocessor &PP,
25  clang::SourceLocation Loc) {
26  if (Loc.isInvalid())
27  return std::string("(none)");
28 
29  if (Loc.isFileID()) {
30  clang::PresumedLoc PLoc = PP.getSourceManager().getPresumedLoc(Loc);
31 
32  if (PLoc.isInvalid()) {
33  return std::string("(invalid)");
34  }
35 
36  std::string Str;
37  llvm::raw_string_ostream SS(Str);
38 
39  // The macro expansion and spelling pos is identical for file locs.
40  SS << "\"" << PLoc.getFilename() << ':' << PLoc.getLine() << ':'
41  << PLoc.getColumn() << "\"";
42 
43  std::string Result = SS.str();
44 
45  // YAML treats backslash as escape, so use forward slashes.
46  std::replace(Result.begin(), Result.end(), '\\', '/');
47 
48  return Result;
49  }
50 
51  return std::string("(nonfile)");
52 }
53 
54 // Enum string tables.
55 
56 // FileChangeReason strings.
57 static const char *const FileChangeReasonStrings[] = {
58  "EnterFile", "ExitFile", "SystemHeaderPragma", "RenameFile"
59 };
60 
61 // CharacteristicKind strings.
62 static const char *const CharacteristicKindStrings[] = { "C_User", "C_System",
63  "C_ExternCSystem" };
64 
65 // MacroDirective::Kind strings.
66 static const char *const MacroDirectiveKindStrings[] = {
67  "MD_Define","MD_Undefine", "MD_Visibility"
68 };
69 
70 // PragmaIntroducerKind strings.
71 static const char *const PragmaIntroducerKindStrings[] = { "PIK_HashPragma",
72  "PIK__Pragma",
73  "PIK___pragma" };
74 
75 // PragmaMessageKind strings.
76 static const char *const PragmaMessageKindStrings[] = {
77  "PMK_Message", "PMK_Warning", "PMK_Error"
78 };
79 
80 // ConditionValueKind strings.
81 static const char *const ConditionValueKindStrings[] = {
82  "CVK_NotEvaluated", "CVK_False", "CVK_True"
83 };
84 
85 // Mapping strings.
86 static const char *const MappingStrings[] = { "0", "MAP_IGNORE",
87  "MAP_REMARK", "MAP_WARNING",
88  "MAP_ERROR", "MAP_FATAL" };
89 
90 // PPCallbacksTracker functions.
91 
92 PPCallbacksTracker::PPCallbacksTracker(llvm::SmallSet<std::string, 4> &Ignore,
93  std::vector<CallbackCall> &CallbackCalls,
94  clang::Preprocessor &PP)
95  : CallbackCalls(CallbackCalls), Ignore(Ignore), PP(PP) {}
96 
98 
99 // Callback functions.
100 
101 // Callback invoked whenever a source file is entered or exited.
103  clang::SourceLocation Loc, clang::PPCallbacks::FileChangeReason Reason,
104  clang::SrcMgr::CharacteristicKind FileType, clang::FileID PrevFID) {
105  beginCallback("FileChanged");
106  appendArgument("Loc", Loc);
107  appendArgument("Reason", Reason, FileChangeReasonStrings);
108  appendArgument("FileType", FileType, CharacteristicKindStrings);
109  appendArgument("PrevFID", PrevFID);
110 }
111 
112 // Callback invoked whenever a source file is skipped as the result
113 // of header guard optimization.
114 void
115 PPCallbacksTracker::FileSkipped(const clang::FileEntry &SkippedFile,
116  const clang::Token &FilenameTok,
117  clang::SrcMgr::CharacteristicKind FileType) {
118  beginCallback("FileSkipped");
119  appendArgument("ParentFile", &SkippedFile);
120  appendArgument("FilenameTok", FilenameTok);
121  appendArgument("FileType", FileType, CharacteristicKindStrings);
122 }
123 
124 // Callback invoked whenever an inclusion directive results in a
125 // file-not-found error.
126 bool
127 PPCallbacksTracker::FileNotFound(llvm::StringRef FileName,
128  llvm::SmallVectorImpl<char> &RecoveryPath) {
129  beginCallback("FileNotFound");
130  appendFilePathArgument("FileName", FileName);
131  return false;
132 }
133 
134 // Callback invoked whenever an inclusion directive of
135 // any kind (#include, #import, etc.) has been processed, regardless
136 // of whether the inclusion will actually result in an inclusion.
138  clang::SourceLocation HashLoc, const clang::Token &IncludeTok,
139  llvm::StringRef FileName, bool IsAngled,
140  clang::CharSourceRange FilenameRange, const clang::FileEntry *File,
141  llvm::StringRef SearchPath, llvm::StringRef RelativePath,
142  const clang::Module *Imported) {
143  beginCallback("InclusionDirective");
144  appendArgument("IncludeTok", IncludeTok);
145  appendFilePathArgument("FileName", FileName);
146  appendArgument("IsAngled", IsAngled);
147  appendArgument("FilenameRange", FilenameRange);
148  appendArgument("File", File);
149  appendFilePathArgument("SearchPath", SearchPath);
150  appendFilePathArgument("RelativePath", RelativePath);
151  appendArgument("Imported", Imported);
152 }
153 
154 // Callback invoked whenever there was an explicit module-import
155 // syntax.
156 void PPCallbacksTracker::moduleImport(clang::SourceLocation ImportLoc,
157  clang::ModuleIdPath Path,
158  const clang::Module *Imported) {
159  beginCallback("moduleImport");
160  appendArgument("ImportLoc", ImportLoc);
161  appendArgument("Path", Path);
162  appendArgument("Imported", Imported);
163 }
164 
165 // Callback invoked when the end of the main file is reached.
166 // No subsequent callbacks will be made.
168 
169 // Callback invoked when a #ident or #sccs directive is read.
170 void PPCallbacksTracker::Ident(clang::SourceLocation Loc, llvm::StringRef Str) {
171  beginCallback("Ident");
172  appendArgument("Loc", Loc);
173  appendArgument("Str", Str);
174 }
175 
176 // Callback invoked when start reading any pragma directive.
177 void
179  clang::PragmaIntroducerKind Introducer) {
180  beginCallback("PragmaDirective");
181  appendArgument("Loc", Loc);
182  appendArgument("Introducer", Introducer, PragmaIntroducerKindStrings);
183 }
184 
185 // Callback invoked when a #pragma comment directive is read.
186 void PPCallbacksTracker::PragmaComment(clang::SourceLocation Loc,
187  const clang::IdentifierInfo *Kind,
188  llvm::StringRef Str) {
189  beginCallback("PragmaComment");
190  appendArgument("Loc", Loc);
191  appendArgument("Kind", Kind);
192  appendArgument("Str", Str);
193 }
194 
195 // Callback invoked when a #pragma detect_mismatch directive is
196 // read.
198  llvm::StringRef Name,
199  llvm::StringRef Value) {
200  beginCallback("PragmaDetectMismatch");
201  appendArgument("Loc", Loc);
202  appendArgument("Name", Name);
203  appendArgument("Value", Value);
204 }
205 
206 // Callback invoked when a #pragma clang __debug directive is read.
207 void PPCallbacksTracker::PragmaDebug(clang::SourceLocation Loc,
208  llvm::StringRef DebugType) {
209  beginCallback("PragmaDebug");
210  appendArgument("Loc", Loc);
211  appendArgument("DebugType", DebugType);
212 }
213 
214 // Callback invoked when a #pragma message directive is read.
216  clang::SourceLocation Loc, llvm::StringRef Namespace,
217  clang::PPCallbacks::PragmaMessageKind Kind, llvm::StringRef Str) {
218  beginCallback("PragmaMessage");
219  appendArgument("Loc", Loc);
220  appendArgument("Namespace", Namespace);
222  appendArgument("Str", Str);
223 }
224 
225 // Callback invoked when a #pragma gcc dianostic push directive
226 // is read.
228  llvm::StringRef Namespace) {
229  beginCallback("PragmaDiagnosticPush");
230  appendArgument("Loc", Loc);
231  appendArgument("Namespace", Namespace);
232 }
233 
234 // Callback invoked when a #pragma gcc dianostic pop directive
235 // is read.
236 void PPCallbacksTracker::PragmaDiagnosticPop(clang::SourceLocation Loc,
237  llvm::StringRef Namespace) {
238  beginCallback("PragmaDiagnosticPop");
239  appendArgument("Loc", Loc);
240  appendArgument("Namespace", Namespace);
241 }
242 
243 // Callback invoked when a #pragma gcc dianostic directive is read.
244 void PPCallbacksTracker::PragmaDiagnostic(clang::SourceLocation Loc,
245  llvm::StringRef Namespace,
246  clang::diag::Severity Mapping,
247  llvm::StringRef Str) {
248  beginCallback("PragmaDiagnostic");
249  appendArgument("Loc", Loc);
250  appendArgument("Namespace", Namespace);
251  appendArgument("Mapping", (unsigned)Mapping, MappingStrings);
252  appendArgument("Str", Str);
253 }
254 
255 // Called when an OpenCL extension is either disabled or
256 // enabled with a pragma.
258  clang::SourceLocation NameLoc, const clang::IdentifierInfo *Name,
259  clang::SourceLocation StateLoc, unsigned State) {
260  beginCallback("PragmaOpenCLExtension");
261  appendArgument("NameLoc", NameLoc);
262  appendArgument("Name", Name);
263  appendArgument("StateLoc", StateLoc);
264  appendArgument("State", (int)State);
265 }
266 
267 // Callback invoked when a #pragma warning directive is read.
268 void PPCallbacksTracker::PragmaWarning(clang::SourceLocation Loc,
269  llvm::StringRef WarningSpec,
270  llvm::ArrayRef<int> Ids) {
271  beginCallback("PragmaWarning");
272  appendArgument("Loc", Loc);
273  appendArgument("WarningSpec", WarningSpec);
274 
275  std::string Str;
276  llvm::raw_string_ostream SS(Str);
277  SS << "[";
278  for (int i = 0, e = Ids.size(); i != e; ++i) {
279  if (i)
280  SS << ", ";
281  SS << Ids[i];
282  }
283  SS << "]";
284  appendArgument("Ids", SS.str());
285 }
286 
287 // Callback invoked when a #pragma warning(push) directive is read.
288 void PPCallbacksTracker::PragmaWarningPush(clang::SourceLocation Loc,
289  int Level) {
290  beginCallback("PragmaWarningPush");
291  appendArgument("Loc", Loc);
292  appendArgument("Level", Level);
293 }
294 
295 // Callback invoked when a #pragma warning(pop) directive is read.
296 void PPCallbacksTracker::PragmaWarningPop(clang::SourceLocation Loc) {
297  beginCallback("PragmaWarningPop");
298  appendArgument("Loc", Loc);
299 }
300 
301 // Called by Preprocessor::HandleMacroExpandedIdentifier when a
302 // macro invocation is found.
303 void
304 PPCallbacksTracker::MacroExpands(const clang::Token &MacroNameTok,
305  const clang::MacroDefinition &MacroDefinition,
306  clang::SourceRange Range,
307  const clang::MacroArgs *Args) {
308  beginCallback("MacroExpands");
309  appendArgument("MacroNameTok", MacroNameTok);
310  appendArgument("MacroDefinition", MacroDefinition);
311  appendArgument("Range", Range);
312  appendArgument("Args", Args);
313 }
314 
315 // Hook called whenever a macro definition is seen.
316 void
317 PPCallbacksTracker::MacroDefined(const clang::Token &MacroNameTok,
318  const clang::MacroDirective *MacroDirective) {
319  beginCallback("MacroDefined");
320  appendArgument("MacroNameTok", MacroNameTok);
321  appendArgument("MacroDirective", MacroDirective);
322 }
323 
324 // Hook called whenever a macro #undef is seen.
326  const clang::Token &MacroNameTok,
327  const clang::MacroDefinition &MacroDefinition,
328  const clang::MacroDirective *Undef) {
329  beginCallback("MacroUndefined");
330  appendArgument("MacroNameTok", MacroNameTok);
331  appendArgument("MacroDefinition", MacroDefinition);
332 }
333 
334 // Hook called whenever the 'defined' operator is seen.
335 void PPCallbacksTracker::Defined(const clang::Token &MacroNameTok,
336  const clang::MacroDefinition &MacroDefinition,
337  clang::SourceRange Range) {
338  beginCallback("Defined");
339  appendArgument("MacroNameTok", MacroNameTok);
340  appendArgument("MacroDefinition", MacroDefinition);
341  appendArgument("Range", Range);
342 }
343 
344 // Hook called when a source range is skipped.
346  beginCallback("SourceRangeSkipped");
347  appendArgument("Range", Range);
348 }
349 
350 // Hook called whenever an #if is seen.
351 void PPCallbacksTracker::If(clang::SourceLocation Loc,
352  clang::SourceRange ConditionRange,
353  ConditionValueKind ConditionValue) {
354  beginCallback("If");
355  appendArgument("Loc", Loc);
356  appendArgument("ConditionRange", ConditionRange);
357  appendArgument("ConditionValue", ConditionValue, ConditionValueKindStrings);
358 }
359 
360 // Hook called whenever an #elif is seen.
361 void PPCallbacksTracker::Elif(clang::SourceLocation Loc,
362  clang::SourceRange ConditionRange,
363  ConditionValueKind ConditionValue,
364  clang::SourceLocation IfLoc) {
365  beginCallback("Elif");
366  appendArgument("Loc", Loc);
367  appendArgument("ConditionRange", ConditionRange);
368  appendArgument("ConditionValue", ConditionValue, ConditionValueKindStrings);
369  appendArgument("IfLoc", IfLoc);
370 }
371 
372 // Hook called whenever an #ifdef is seen.
373 void PPCallbacksTracker::Ifdef(clang::SourceLocation Loc,
374  const clang::Token &MacroNameTok,
375  const clang::MacroDefinition &MacroDefinition) {
376  beginCallback("Ifdef");
377  appendArgument("Loc", Loc);
378  appendArgument("MacroNameTok", MacroNameTok);
379  appendArgument("MacroDefinition", MacroDefinition);
380 }
381 
382 // Hook called whenever an #ifndef is seen.
383 void PPCallbacksTracker::Ifndef(clang::SourceLocation Loc,
384  const clang::Token &MacroNameTok,
385  const clang::MacroDefinition &MacroDefinition) {
386  beginCallback("Ifndef");
387  appendArgument("Loc", Loc);
388  appendArgument("MacroNameTok", MacroNameTok);
389  appendArgument("MacroDefinition", MacroDefinition);
390 }
391 
392 // Hook called whenever an #else is seen.
393 void PPCallbacksTracker::Else(clang::SourceLocation Loc,
394  clang::SourceLocation IfLoc) {
395  beginCallback("Else");
396  appendArgument("Loc", Loc);
397  appendArgument("IfLoc", IfLoc);
398 }
399 
400 // Hook called whenever an #endif is seen.
401 void PPCallbacksTracker::Endif(clang::SourceLocation Loc,
402  clang::SourceLocation IfLoc) {
403  beginCallback("Endif");
404  appendArgument("Loc", Loc);
405  appendArgument("IfLoc", IfLoc);
406 }
407 
408 // Helper functions.
409 
410 // Start a new callback.
412  DisableTrace = Ignore.count(std::string(Name));
413  if (DisableTrace)
414  return;
415  CallbackCalls.push_back(CallbackCall(Name));
416 }
417 
418 // Append a bool argument to the top trace item.
419 void PPCallbacksTracker::appendArgument(const char *Name, bool Value) {
420  appendArgument(Name, (Value ? "true" : "false"));
421 }
422 
423 // Append an int argument to the top trace item.
424 void PPCallbacksTracker::appendArgument(const char *Name, int Value) {
425  std::string Str;
426  llvm::raw_string_ostream SS(Str);
427  SS << Value;
428  appendArgument(Name, SS.str());
429 }
430 
431 // Append a string argument to the top trace item.
432 void PPCallbacksTracker::appendArgument(const char *Name, const char *Value) {
433  if (DisableTrace)
434  return;
435  CallbackCalls.back().Arguments.push_back(Argument(Name, Value));
436 }
437 
438 // Append a string object argument to the top trace item.
440  llvm::StringRef Value) {
441  appendArgument(Name, Value.str());
442 }
443 
444 // Append a string object argument to the top trace item.
446  const std::string &Value) {
447  appendArgument(Name, Value.c_str());
448 }
449 
450 // Append a token argument to the top trace item.
452  const clang::Token &Value) {
453  appendArgument(Name, PP.getSpelling(Value));
454 }
455 
456 // Append an enum argument to the top trace item.
457 void PPCallbacksTracker::appendArgument(const char *Name, int Value,
458  const char *const Strings[]) {
459  appendArgument(Name, Strings[Value]);
460 }
461 
462 // Append a FileID argument to the top trace item.
463 void PPCallbacksTracker::appendArgument(const char *Name, clang::FileID Value) {
464  if (Value.isInvalid()) {
465  appendArgument(Name, "(invalid)");
466  return;
467  }
468  const clang::FileEntry *FileEntry =
469  PP.getSourceManager().getFileEntryForID(Value);
470  if (!FileEntry) {
471  appendArgument(Name, "(getFileEntryForID failed)");
472  return;
473  }
474  appendFilePathArgument(Name, FileEntry->getName());
475 }
476 
477 // Append a FileEntry argument to the top trace item.
479  const clang::FileEntry *Value) {
480  if (!Value) {
481  appendArgument(Name, "(null)");
482  return;
483  }
484  appendFilePathArgument(Name, Value->getName());
485 }
486 
487 // Append a SourceLocation argument to the top trace item.
489  clang::SourceLocation Value) {
490  if (Value.isInvalid()) {
491  appendArgument(Name, "(invalid)");
492  return;
493  }
494  appendArgument(Name, getSourceLocationString(PP, Value).c_str());
495 }
496 
497 // Append a SourceRange argument to the top trace item.
499  clang::SourceRange Value) {
500  if (DisableTrace)
501  return;
502  if (Value.isInvalid()) {
503  appendArgument(Name, "(invalid)");
504  return;
505  }
506  std::string Str;
507  llvm::raw_string_ostream SS(Str);
508  SS << "[" << getSourceLocationString(PP, Value.getBegin()) << ", "
509  << getSourceLocationString(PP, Value.getEnd()) << "]";
510  appendArgument(Name, SS.str());
511 }
512 
513 // Append a CharSourceRange argument to the top trace item.
515  clang::CharSourceRange Value) {
516  if (Value.isInvalid()) {
517  appendArgument(Name, "(invalid)");
518  return;
519  }
520  appendArgument(Name, getSourceString(Value).str().c_str());
521 }
522 
523 // Append a SourceLocation argument to the top trace item.
525  clang::ModuleIdPath Value) {
526  if (DisableTrace)
527  return;
528  std::string Str;
529  llvm::raw_string_ostream SS(Str);
530  SS << "[";
531  for (int I = 0, E = Value.size(); I != E; ++I) {
532  if (I)
533  SS << ", ";
534  SS << "{"
535  << "Name: " << Value[I].first->getName() << ", "
536  << "Loc: " << getSourceLocationString(PP, Value[I].second) << "}";
537  }
538  SS << "]";
539  appendArgument(Name, SS.str());
540 }
541 
542 // Append an IdentifierInfo argument to the top trace item.
544  const clang::IdentifierInfo *Value) {
545  if (!Value) {
546  appendArgument(Name, "(null)");
547  return;
548  }
549  appendArgument(Name, Value->getName().str().c_str());
550 }
551 
552 // Append a MacroDirective argument to the top trace item.
554  const clang::MacroDirective *Value) {
555  if (!Value) {
556  appendArgument(Name, "(null)");
557  return;
558  }
559  appendArgument(Name, MacroDirectiveKindStrings[Value->getKind()]);
560 }
561 
562 // Append a MacroDefinition argument to the top trace item.
564  const clang::MacroDefinition &Value) {
565  std::string Str;
566  llvm::raw_string_ostream SS(Str);
567  SS << "[";
568  bool Any = false;
569  if (Value.getLocalDirective()) {
570  SS << "(local)";
571  Any = true;
572  }
573  for (auto *MM : Value.getModuleMacros()) {
574  if (Any) SS << ", ";
575  SS << MM->getOwningModule()->getFullModuleName();
576  }
577  SS << "]";
578  appendArgument(Name, SS.str());
579 }
580 
581 // Append a MacroArgs argument to the top trace item.
583  const clang::MacroArgs *Value) {
584  if (!Value) {
585  appendArgument(Name, "(null)");
586  return;
587  }
588  std::string Str;
589  llvm::raw_string_ostream SS(Str);
590  SS << "[";
591 
592  // Each argument is is a series of contiguous Tokens, terminated by a eof.
593  // Go through each argument printing tokens until we reach eof.
594  for (unsigned I = 0; I < Value->getNumMacroArguments(); ++I) {
595  const clang::Token *Current = Value->getUnexpArgument(I);
596  if (I)
597  SS << ", ";
598  bool First = true;
599  while (Current->isNot(clang::tok::eof)) {
600  if (!First)
601  SS << " ";
602  // We need to be careful here because the arguments might not be legal in
603  // YAML, so we use the token name for anything but identifiers and
604  // numeric literals.
605  if (Current->isAnyIdentifier() ||
606  Current->is(clang::tok::numeric_constant)) {
607  SS << PP.getSpelling(*Current);
608  } else {
609  SS << "<" << Current->getName() << ">";
610  }
611  ++Current;
612  First = false;
613  }
614  }
615  SS << "]";
616  appendArgument(Name, SS.str());
617 }
618 
619 // Append a Module argument to the top trace item.
621  const clang::Module *Value) {
622  if (!Value) {
623  appendArgument(Name, "(null)");
624  return;
625  }
626  appendArgument(Name, Value->Name.c_str());
627 }
628 
629 // Append a double-quoted argument to the top trace item.
631  const std::string &Value) {
632  std::string Str;
633  llvm::raw_string_ostream SS(Str);
634  SS << "\"" << Value << "\"";
635  appendArgument(Name, SS.str());
636 }
637 
638 // Append a double-quoted file path argument to the top trace item.
640  llvm::StringRef Value) {
641  std::string Path(Value);
642  // YAML treats backslash as escape, so use forward slashes.
643  std::replace(Path.begin(), Path.end(), '\\', '/');
644  appendQuotedArgument(Name, Path);
645 }
646 
647 // Get the raw source string of the range.
648 llvm::StringRef
650  const char *B = PP.getSourceManager().getCharacterData(Range.getBegin());
651  const char *E = PP.getSourceManager().getCharacterData(Range.getEnd());
652  return llvm::StringRef(B, E - B);
653 }
SourceLocation Loc
'#' location in the include directive
llvm::StringRef getSourceString(clang::CharSourceRange Range)
Get the raw source string of the range.
This class represents one callback function argument by name and value.
void beginCallback(const char *Name)
Start a new callback.
void PragmaDebug(clang::SourceLocation Loc, llvm::StringRef DebugType) override
void EndOfMainFile() override
void Ifndef(clang::SourceLocation Loc, const clang::Token &MacroNameTok, const clang::MacroDefinition &MD) override
void appendFilePathArgument(const char *Name, llvm::StringRef Value)
Append a double-quoted file path argument to the top trace item.
StringHandle Name
HeaderHandle File
std::vector< CallbackCall > & CallbackCalls
Callback trace information.
void PragmaDiagnosticPop(clang::SourceLocation Loc, llvm::StringRef Namespace) override
void PragmaOpenCLExtension(clang::SourceLocation NameLoc, const clang::IdentifierInfo *Name, clang::SourceLocation StateLoc, unsigned State) override
void PragmaDetectMismatch(clang::SourceLocation Loc, llvm::StringRef Name, llvm::StringRef Value) override
void FileChanged(clang::SourceLocation Loc, clang::PPCallbacks::FileChangeReason Reason, clang::SrcMgr::CharacteristicKind FileType, clang::FileID PrevFID=clang::FileID()) override
static const char *const PragmaMessageKindStrings[]
void Else(clang::SourceLocation Loc, clang::SourceLocation IfLoc) override
void MacroExpands(const clang::Token &MacroNameTok, const clang::MacroDefinition &MD, clang::SourceRange Range, const clang::MacroArgs *Args) override
std::vector< HeaderHandle > Path
void appendQuotedArgument(const char *Name, const std::string &Value)
Append a double-quoted argument to the top trace item.
static const char *const FileChangeReasonStrings[]
void FileSkipped(const clang::FileEntry &SkippedFile, const clang::Token &FilenameTok, clang::SrcMgr::CharacteristicKind FileType) override
void SourceRangeSkipped(clang::SourceRange Range) override
llvm::SmallSet< std::string, 4 > & Ignore
Names of callbacks to ignore.
BindArgumentKind Kind
static const char *const MacroDirectiveKindStrings[]
PPCallbacksTracker(llvm::SmallSet< std::string, 4 > &Ignore, std::vector< CallbackCall > &CallbackCalls, clang::Preprocessor &PP)
Note that all of the arguments are references, and owned by the caller.
void PragmaMessage(clang::SourceLocation Loc, llvm::StringRef Namespace, clang::PPCallbacks::PragmaMessageKind Kind, llvm::StringRef Str) override
void MacroDefined(const clang::Token &MacroNameTok, const clang::MacroDirective *MD) override
void MacroUndefined(const clang::Token &MacroNameTok, const clang::MacroDefinition &MD, const clang::MacroDirective *Undef) override
void InclusionDirective(clang::SourceLocation HashLoc, const clang::Token &IncludeTok, llvm::StringRef FileName, bool IsAngled, clang::CharSourceRange FilenameRange, const clang::FileEntry *File, llvm::StringRef SearchPath, llvm::StringRef RelativePath, const clang::Module *Imported) override
void PragmaWarningPush(clang::SourceLocation Loc, int Level) override
void moduleImport(clang::SourceLocation ImportLoc, clang::ModuleIdPath Path, const clang::Module *Imported) override
bool IsAngled
true if this was an include with angle brackets
static const char *const PragmaIntroducerKindStrings[]
void Defined(const clang::Token &MacroNameTok, const clang::MacroDefinition &MD, clang::SourceRange Range) override
Classes and definitions for preprocessor tracking.
This class represents one callback call by name and an array of arguments.
void PragmaComment(clang::SourceLocation Loc, const clang::IdentifierInfo *Kind, llvm::StringRef Str) override
void If(clang::SourceLocation Loc, clang::SourceRange ConditionRange, ConditionValueKind ConditionValue) override
bool FileNotFound(llvm::StringRef FileName, llvm::SmallVectorImpl< char > &RecoveryPath) override
Preprocessor * PP
clang::PPCallbacks::ConditionValueKind ConditionValue
void PragmaWarningPop(clang::SourceLocation Loc) override
void PragmaDiagnostic(clang::SourceLocation Loc, llvm::StringRef Namespace, clang::diag::Severity mapping, llvm::StringRef Str) override
static const char *const ConditionValueKindStrings[]
void Elif(clang::SourceLocation Loc, clang::SourceRange ConditionRange, ConditionValueKind ConditionValue, clang::SourceLocation IfLoc) override
CharSourceRange Range
SourceRange for the file name.
void Endif(clang::SourceLocation Loc, clang::SourceLocation IfLoc) override
void PragmaDirective(clang::SourceLocation Loc, clang::PragmaIntroducerKind Introducer) override
llvm::StringPool Strings
void Ifdef(clang::SourceLocation Loc, const clang::Token &MacroNameTok, const clang::MacroDefinition &MD) override
void appendArgument(const char *Name, bool Value)
Append a bool argument to the top trace item.
bool DisableTrace
Inhibit trace while this is set.
clang::Preprocessor & PP
static const char *const MappingStrings[]
void PragmaDiagnosticPush(clang::SourceLocation Loc, llvm::StringRef Namespace) override
void PragmaWarning(clang::SourceLocation Loc, llvm::StringRef WarningSpec, llvm::ArrayRef< int > Ids) override
void Ident(clang::SourceLocation Loc, llvm::StringRef str) override
static const char *const CharacteristicKindStrings[]
static std::string getSourceLocationString(clang::Preprocessor &PP, clang::SourceLocation Loc)