/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/Lex/PreprocessingRecord.h
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1 | | //===- PreprocessingRecord.h - Record of Preprocessing ----------*- C++ -*-===// |
2 | | // |
3 | | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | | // See https://llvm.org/LICENSE.txt for license information. |
5 | | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | // |
9 | | // This file defines the PreprocessingRecord class, which maintains a record |
10 | | // of what occurred during preprocessing. |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #ifndef LLVM_CLANG_LEX_PREPROCESSINGRECORD_H |
15 | | #define LLVM_CLANG_LEX_PREPROCESSINGRECORD_H |
16 | | |
17 | | #include "clang/Basic/IdentifierTable.h" |
18 | | #include "clang/Basic/LLVM.h" |
19 | | #include "clang/Basic/SourceLocation.h" |
20 | | #include "clang/Lex/PPCallbacks.h" |
21 | | #include "llvm/ADT/DenseMap.h" |
22 | | #include "llvm/ADT/None.h" |
23 | | #include "llvm/ADT/Optional.h" |
24 | | #include "llvm/ADT/PointerUnion.h" |
25 | | #include "llvm/ADT/StringRef.h" |
26 | | #include "llvm/ADT/iterator.h" |
27 | | #include "llvm/ADT/iterator_range.h" |
28 | | #include "llvm/Support/Allocator.h" |
29 | | #include "llvm/Support/Compiler.h" |
30 | | #include <cassert> |
31 | | #include <cstddef> |
32 | | #include <iterator> |
33 | | #include <utility> |
34 | | #include <vector> |
35 | | |
36 | | namespace clang { |
37 | | |
38 | | class PreprocessingRecord; |
39 | | |
40 | | } // namespace clang |
41 | | |
42 | | /// Allocates memory within a Clang preprocessing record. |
43 | | void *operator new(size_t bytes, clang::PreprocessingRecord &PR, |
44 | | unsigned alignment = 8) noexcept; |
45 | | |
46 | | /// Frees memory allocated in a Clang preprocessing record. |
47 | | void operator delete(void *ptr, clang::PreprocessingRecord &PR, |
48 | | unsigned) noexcept; |
49 | | |
50 | | namespace clang { |
51 | | |
52 | | class FileEntry; |
53 | | class IdentifierInfo; |
54 | | class MacroInfo; |
55 | | class SourceManager; |
56 | | class Token; |
57 | | |
58 | | /// Base class that describes a preprocessed entity, which may be a |
59 | | /// preprocessor directive or macro expansion. |
60 | | class PreprocessedEntity { |
61 | | public: |
62 | | /// The kind of preprocessed entity an object describes. |
63 | | enum EntityKind { |
64 | | /// Indicates a problem trying to load the preprocessed entity. |
65 | | InvalidKind, |
66 | | |
67 | | /// A macro expansion. |
68 | | MacroExpansionKind, |
69 | | |
70 | | /// \defgroup Preprocessing directives |
71 | | /// @{ |
72 | | |
73 | | /// A macro definition. |
74 | | MacroDefinitionKind, |
75 | | |
76 | | /// An inclusion directive, such as \c \#include, \c |
77 | | /// \#import, or \c \#include_next. |
78 | | InclusionDirectiveKind, |
79 | | |
80 | | /// @} |
81 | | |
82 | | FirstPreprocessingDirective = MacroDefinitionKind, |
83 | | LastPreprocessingDirective = InclusionDirectiveKind |
84 | | }; |
85 | | |
86 | | private: |
87 | | /// The kind of preprocessed entity that this object describes. |
88 | | EntityKind Kind; |
89 | | |
90 | | /// The source range that covers this preprocessed entity. |
91 | | SourceRange Range; |
92 | | |
93 | | protected: |
94 | | friend class PreprocessingRecord; |
95 | | |
96 | | PreprocessedEntity(EntityKind Kind, SourceRange Range) |
97 | 688k | : Kind(Kind), Range(Range) {} |
98 | | |
99 | | public: |
100 | | /// Retrieve the kind of preprocessed entity stored in this object. |
101 | 898k | EntityKind getKind() const { return Kind; } |
102 | | |
103 | | /// Retrieve the source range that covers this entire preprocessed |
104 | | /// entity. |
105 | 1.75M | SourceRange getSourceRange() const LLVM_READONLY { return Range; } |
106 | | |
107 | | /// Returns true if there was a problem loading the preprocessed |
108 | | /// entity. |
109 | 0 | bool isInvalid() const { return Kind == InvalidKind; } |
110 | | |
111 | | // Only allow allocation of preprocessed entities using the allocator |
112 | | // in PreprocessingRecord or by doing a placement new. |
113 | | void *operator new(size_t bytes, PreprocessingRecord &PR, |
114 | 688k | unsigned alignment = 8) noexcept { |
115 | 688k | return ::operator new(bytes, PR, alignment); |
116 | 688k | } |
117 | | |
118 | 0 | void *operator new(size_t bytes, void *mem) noexcept { return mem; } |
119 | | |
120 | | void operator delete(void *ptr, PreprocessingRecord &PR, |
121 | 0 | unsigned alignment) noexcept { |
122 | 0 | return ::operator delete(ptr, PR, alignment); |
123 | 0 | } |
124 | | |
125 | 0 | void operator delete(void *, std::size_t) noexcept {} |
126 | 0 | void operator delete(void *, void *) noexcept {} |
127 | | |
128 | | private: |
129 | | // Make vanilla 'new' and 'delete' illegal for preprocessed entities. |
130 | | void *operator new(size_t bytes) noexcept; |
131 | | void operator delete(void *data) noexcept; |
132 | | }; |
133 | | |
134 | | /// Records the presence of a preprocessor directive. |
135 | | class PreprocessingDirective : public PreprocessedEntity { |
136 | | public: |
137 | | PreprocessingDirective(EntityKind Kind, SourceRange Range) |
138 | 687k | : PreprocessedEntity(Kind, Range) {} |
139 | | |
140 | | // Implement isa/cast/dyncast/etc. |
141 | 0 | static bool classof(const PreprocessedEntity *PD) { |
142 | 0 | return PD->getKind() >= FirstPreprocessingDirective && |
143 | 0 | PD->getKind() <= LastPreprocessingDirective; |
144 | 0 | } |
145 | | }; |
146 | | |
147 | | /// Record the location of a macro definition. |
148 | | class MacroDefinitionRecord : public PreprocessingDirective { |
149 | | /// The name of the macro being defined. |
150 | | const IdentifierInfo *Name; |
151 | | |
152 | | public: |
153 | | explicit MacroDefinitionRecord(const IdentifierInfo *Name, |
154 | | SourceRange Range) |
155 | 686k | : PreprocessingDirective(MacroDefinitionKind, Range), Name(Name) {} |
156 | | |
157 | | /// Retrieve the name of the macro being defined. |
158 | 198k | const IdentifierInfo *getName() const { return Name; } |
159 | | |
160 | | /// Retrieve the location of the macro name in the definition. |
161 | 174k | SourceLocation getLocation() const { return getSourceRange().getBegin(); } |
162 | | |
163 | | // Implement isa/cast/dyncast/etc. |
164 | 816k | static bool classof(const PreprocessedEntity *PE) { |
165 | 816k | return PE->getKind() == MacroDefinitionKind; |
166 | 816k | } |
167 | | }; |
168 | | |
169 | | /// Records the location of a macro expansion. |
170 | | class MacroExpansion : public PreprocessedEntity { |
171 | | /// The definition of this macro or the name of the macro if it is |
172 | | /// a builtin macro. |
173 | | llvm::PointerUnion<IdentifierInfo *, MacroDefinitionRecord *> NameOrDef; |
174 | | |
175 | | public: |
176 | | MacroExpansion(IdentifierInfo *BuiltinName, SourceRange Range) |
177 | | : PreprocessedEntity(MacroExpansionKind, Range), |
178 | 62 | NameOrDef(BuiltinName) {} |
179 | | |
180 | | MacroExpansion(MacroDefinitionRecord *Definition, SourceRange Range) |
181 | 1.31k | : PreprocessedEntity(MacroExpansionKind, Range), NameOrDef(Definition) { |
182 | 1.31k | } |
183 | | |
184 | | /// True if it is a builtin macro. |
185 | 76 | bool isBuiltinMacro() const { return NameOrDef.is<IdentifierInfo *>(); } |
186 | | |
187 | | /// The name of the macro being expanded. |
188 | 248 | const IdentifierInfo *getName() const { |
189 | 248 | if (MacroDefinitionRecord *Def = getDefinition()) |
190 | 235 | return Def->getName(); |
191 | 13 | return NameOrDef.get<IdentifierInfo *>(); |
192 | 248 | } |
193 | | |
194 | | /// The definition of the macro being expanded. May return null if |
195 | | /// this is a builtin macro. |
196 | 491 | MacroDefinitionRecord *getDefinition() const { |
197 | 491 | return NameOrDef.dyn_cast<MacroDefinitionRecord *>(); |
198 | 491 | } |
199 | | |
200 | | // Implement isa/cast/dyncast/etc. |
201 | 77.8k | static bool classof(const PreprocessedEntity *PE) { |
202 | 77.8k | return PE->getKind() == MacroExpansionKind; |
203 | 77.8k | } |
204 | | }; |
205 | | |
206 | | /// Record the location of an inclusion directive, such as an |
207 | | /// \c \#include or \c \#import statement. |
208 | | class InclusionDirective : public PreprocessingDirective { |
209 | | public: |
210 | | /// The kind of inclusion directives known to the |
211 | | /// preprocessor. |
212 | | enum InclusionKind { |
213 | | /// An \c \#include directive. |
214 | | Include, |
215 | | |
216 | | /// An Objective-C \c \#import directive. |
217 | | Import, |
218 | | |
219 | | /// A GNU \c \#include_next directive. |
220 | | IncludeNext, |
221 | | |
222 | | /// A Clang \c \#__include_macros directive. |
223 | | IncludeMacros |
224 | | }; |
225 | | |
226 | | private: |
227 | | /// The name of the file that was included, as written in |
228 | | /// the source. |
229 | | StringRef FileName; |
230 | | |
231 | | /// Whether the file name was in quotation marks; otherwise, it was |
232 | | /// in angle brackets. |
233 | | unsigned InQuotes : 1; |
234 | | |
235 | | /// The kind of inclusion directive we have. |
236 | | /// |
237 | | /// This is a value of type InclusionKind. |
238 | | unsigned Kind : 2; |
239 | | |
240 | | /// Whether the inclusion directive was automatically turned into |
241 | | /// a module import. |
242 | | unsigned ImportedModule : 1; |
243 | | |
244 | | /// The file that was included. |
245 | | Optional<FileEntryRef> File; |
246 | | |
247 | | public: |
248 | | InclusionDirective(PreprocessingRecord &PPRec, InclusionKind Kind, |
249 | | StringRef FileName, bool InQuotes, bool ImportedModule, |
250 | | Optional<FileEntryRef> File, SourceRange Range); |
251 | | |
252 | | /// Determine what kind of inclusion directive this is. |
253 | 284 | InclusionKind getKind() const { return static_cast<InclusionKind>(Kind); } |
254 | | |
255 | | /// Retrieve the included file name as it was written in the source. |
256 | 875 | StringRef getFileName() const { return FileName; } |
257 | | |
258 | | /// Determine whether the included file name was written in quotes; |
259 | | /// otherwise, it was written in angle brackets. |
260 | 284 | bool wasInQuotes() const { return InQuotes; } |
261 | | |
262 | | /// Determine whether the inclusion directive was automatically |
263 | | /// turned into a module import. |
264 | 284 | bool importedModule() const { return ImportedModule; } |
265 | | |
266 | | /// Retrieve the file entry for the actual file that was included |
267 | | /// by this directive. |
268 | 868 | Optional<FileEntryRef> getFile() const { return File; } |
269 | | |
270 | | // Implement isa/cast/dyncast/etc. |
271 | 4.05k | static bool classof(const PreprocessedEntity *PE) { |
272 | 4.05k | return PE->getKind() == InclusionDirectiveKind; |
273 | 4.05k | } |
274 | | }; |
275 | | |
276 | | /// An abstract class that should be subclassed by any external source |
277 | | /// of preprocessing record entries. |
278 | | class ExternalPreprocessingRecordSource { |
279 | | public: |
280 | | virtual ~ExternalPreprocessingRecordSource(); |
281 | | |
282 | | /// Read a preallocated preprocessed entity from the external source. |
283 | | /// |
284 | | /// \returns null if an error occurred that prevented the preprocessed |
285 | | /// entity from being loaded. |
286 | | virtual PreprocessedEntity *ReadPreprocessedEntity(unsigned Index) = 0; |
287 | | |
288 | | /// Returns a pair of [Begin, End) indices of preallocated |
289 | | /// preprocessed entities that \p Range encompasses. |
290 | | virtual std::pair<unsigned, unsigned> |
291 | | findPreprocessedEntitiesInRange(SourceRange Range) = 0; |
292 | | |
293 | | /// Optionally returns true or false if the preallocated preprocessed |
294 | | /// entity with index \p Index came from file \p FID. |
295 | | virtual Optional<bool> isPreprocessedEntityInFileID(unsigned Index, |
296 | 0 | FileID FID) { |
297 | 0 | return None; |
298 | 0 | } |
299 | | |
300 | | /// Read a preallocated skipped range from the external source. |
301 | | virtual SourceRange ReadSkippedRange(unsigned Index) = 0; |
302 | | }; |
303 | | |
304 | | /// A record of the steps taken while preprocessing a source file, |
305 | | /// including the various preprocessing directives processed, macros |
306 | | /// expanded, etc. |
307 | | class PreprocessingRecord : public PPCallbacks { |
308 | | SourceManager &SourceMgr; |
309 | | |
310 | | /// Allocator used to store preprocessing objects. |
311 | | llvm::BumpPtrAllocator BumpAlloc; |
312 | | |
313 | | /// The set of preprocessed entities in this record, in order they |
314 | | /// were seen. |
315 | | std::vector<PreprocessedEntity *> PreprocessedEntities; |
316 | | |
317 | | /// The set of preprocessed entities in this record that have been |
318 | | /// loaded from external sources. |
319 | | /// |
320 | | /// The entries in this vector are loaded lazily from the external source, |
321 | | /// and are referenced by the iterator using negative indices. |
322 | | std::vector<PreprocessedEntity *> LoadedPreprocessedEntities; |
323 | | |
324 | | /// The set of ranges that were skipped by the preprocessor, |
325 | | std::vector<SourceRange> SkippedRanges; |
326 | | |
327 | | bool SkippedRangesAllLoaded = true; |
328 | | |
329 | | /// Global (loaded or local) ID for a preprocessed entity. |
330 | | /// Negative values are used to indicate preprocessed entities |
331 | | /// loaded from the external source while non-negative values are used to |
332 | | /// indicate preprocessed entities introduced by the current preprocessor. |
333 | | /// Value -1 corresponds to element 0 in the loaded entities vector, |
334 | | /// value -2 corresponds to element 1 in the loaded entities vector, etc. |
335 | | /// Value 0 is an invalid value, the index to local entities is 1-based, |
336 | | /// value 1 corresponds to element 0 in the local entities vector, |
337 | | /// value 2 corresponds to element 1 in the local entities vector, etc. |
338 | | class PPEntityID { |
339 | | friend class PreprocessingRecord; |
340 | | |
341 | | int ID = 0; |
342 | | |
343 | 897k | explicit PPEntityID(int ID) : ID(ID) {} |
344 | | |
345 | | public: |
346 | | PPEntityID() = default; |
347 | | }; |
348 | | |
349 | 897k | static PPEntityID getPPEntityID(unsigned Index, bool isLoaded) { |
350 | 897k | return isLoaded ? PPEntityID(-int(Index)-1)63.0k : PPEntityID(Index+1)834k ; |
351 | 897k | } |
352 | | |
353 | | /// Mapping from MacroInfo structures to their definitions. |
354 | | llvm::DenseMap<const MacroInfo *, MacroDefinitionRecord *> MacroDefinitions; |
355 | | |
356 | | /// External source of preprocessed entities. |
357 | | ExternalPreprocessingRecordSource *ExternalSource = nullptr; |
358 | | |
359 | | /// Retrieve the preprocessed entity at the given ID. |
360 | | PreprocessedEntity *getPreprocessedEntity(PPEntityID PPID); |
361 | | |
362 | | /// Retrieve the loaded preprocessed entity at the given index. |
363 | | PreprocessedEntity *getLoadedPreprocessedEntity(unsigned Index); |
364 | | |
365 | | /// Determine the number of preprocessed entities that were |
366 | | /// loaded (or can be loaded) from an external source. |
367 | 96 | unsigned getNumLoadedPreprocessedEntities() const { |
368 | 96 | return LoadedPreprocessedEntities.size(); |
369 | 96 | } |
370 | | |
371 | | /// Returns a pair of [Begin, End) indices of local preprocessed |
372 | | /// entities that \p Range encompasses. |
373 | | std::pair<unsigned, unsigned> |
374 | | findLocalPreprocessedEntitiesInRange(SourceRange Range) const; |
375 | | unsigned findBeginLocalPreprocessedEntity(SourceLocation Loc) const; |
376 | | unsigned findEndLocalPreprocessedEntity(SourceLocation Loc) const; |
377 | | |
378 | | /// Allocate space for a new set of loaded preprocessed entities. |
379 | | /// |
380 | | /// \returns The index into the set of loaded preprocessed entities, which |
381 | | /// corresponds to the first newly-allocated entity. |
382 | | unsigned allocateLoadedEntities(unsigned NumEntities); |
383 | | |
384 | | /// Allocate space for a new set of loaded preprocessed skipped |
385 | | /// ranges. |
386 | | /// |
387 | | /// \returns The index into the set of loaded preprocessed ranges, which |
388 | | /// corresponds to the first newly-allocated range. |
389 | | unsigned allocateSkippedRanges(unsigned NumRanges); |
390 | | |
391 | | /// Ensures that all external skipped ranges have been loaded. |
392 | | void ensureSkippedRangesLoaded(); |
393 | | |
394 | | /// Register a new macro definition. |
395 | | void RegisterMacroDefinition(MacroInfo *Macro, MacroDefinitionRecord *Def); |
396 | | |
397 | | public: |
398 | | /// Construct a new preprocessing record. |
399 | | explicit PreprocessingRecord(SourceManager &SM); |
400 | | |
401 | | /// Allocate memory in the preprocessing record. |
402 | 689k | void *Allocate(unsigned Size, unsigned Align = 8) { |
403 | 689k | return BumpAlloc.Allocate(Size, Align); |
404 | 689k | } |
405 | | |
406 | | /// Deallocate memory in the preprocessing record. |
407 | 0 | void Deallocate(void *Ptr) {} |
408 | | |
409 | | size_t getTotalMemory() const; |
410 | | |
411 | 0 | SourceManager &getSourceManager() const { return SourceMgr; } |
412 | | |
413 | | /// Iteration over the preprocessed entities. |
414 | | /// |
415 | | /// In a complete iteration, the iterator walks the range [-M, N), |
416 | | /// where negative values are used to indicate preprocessed entities |
417 | | /// loaded from the external source while non-negative values are used to |
418 | | /// indicate preprocessed entities introduced by the current preprocessor. |
419 | | /// However, to provide iteration in source order (for, e.g., chained |
420 | | /// precompiled headers), dereferencing the iterator flips the negative |
421 | | /// values (corresponding to loaded entities), so that position -M |
422 | | /// corresponds to element 0 in the loaded entities vector, position -M+1 |
423 | | /// corresponds to element 1 in the loaded entities vector, etc. This |
424 | | /// gives us a reasonably efficient, source-order walk. |
425 | | /// |
426 | | /// We define this as a wrapping iterator around an int. The |
427 | | /// iterator_adaptor_base class forwards the iterator methods to basic |
428 | | /// integer arithmetic. |
429 | | class iterator : public llvm::iterator_adaptor_base< |
430 | | iterator, int, std::random_access_iterator_tag, |
431 | | PreprocessedEntity *, int, PreprocessedEntity *, |
432 | | PreprocessedEntity *> { |
433 | | friend class PreprocessingRecord; |
434 | | |
435 | | PreprocessingRecord *Self; |
436 | | |
437 | | iterator(PreprocessingRecord *Self, int Position) |
438 | 29.8k | : iterator::iterator_adaptor_base(Position), Self(Self) {} |
439 | | |
440 | | public: |
441 | 0 | iterator() : iterator(nullptr, 0) {} Unexecuted instantiation: clang::PreprocessingRecord::iterator::iterator() Unexecuted instantiation: clang::PreprocessingRecord::iterator::iterator() |
442 | | |
443 | 223k | PreprocessedEntity *operator*() const { |
444 | 223k | bool isLoaded = this->I < 0; |
445 | 223k | unsigned Index = isLoaded ? |
446 | 201k | Self->LoadedPreprocessedEntities.size() + this->I22.0k : this->I; |
447 | 223k | PPEntityID ID = Self->getPPEntityID(Index, isLoaded); |
448 | 223k | return Self->getPreprocessedEntity(ID); |
449 | 223k | } |
450 | 0 | PreprocessedEntity *operator->() const { return **this; } |
451 | | }; |
452 | | |
453 | | /// Begin iterator for all preprocessed entities. |
454 | 151 | iterator begin() { |
455 | 151 | return iterator(this, -(int)LoadedPreprocessedEntities.size()); |
456 | 151 | } |
457 | | |
458 | | /// End iterator for all preprocessed entities. |
459 | 151 | iterator end() { |
460 | 151 | return iterator(this, PreprocessedEntities.size()); |
461 | 151 | } |
462 | | |
463 | | /// Begin iterator for local, non-loaded, preprocessed entities. |
464 | 466 | iterator local_begin() { |
465 | 466 | return iterator(this, 0); |
466 | 466 | } |
467 | | |
468 | | /// End iterator for local, non-loaded, preprocessed entities. |
469 | 466 | iterator local_end() { |
470 | 466 | return iterator(this, PreprocessedEntities.size()); |
471 | 466 | } |
472 | | |
473 | | /// iterator range for the given range of loaded |
474 | | /// preprocessed entities. |
475 | | llvm::iterator_range<iterator> getIteratorsForLoadedRange(unsigned start, |
476 | 9 | unsigned count) { |
477 | 9 | unsigned end = start + count; |
478 | 9 | assert(end <= LoadedPreprocessedEntities.size()); |
479 | 0 | return llvm::make_range( |
480 | 9 | iterator(this, int(start) - LoadedPreprocessedEntities.size()), |
481 | 9 | iterator(this, int(end) - LoadedPreprocessedEntities.size())); |
482 | 9 | } |
483 | | |
484 | | /// Returns a range of preprocessed entities that source range \p R |
485 | | /// encompasses. |
486 | | /// |
487 | | /// \param R the range to look for preprocessed entities. |
488 | | llvm::iterator_range<iterator> |
489 | | getPreprocessedEntitiesInRange(SourceRange R); |
490 | | |
491 | | /// Returns true if the preprocessed entity that \p PPEI iterator |
492 | | /// points to is coming from the file \p FID. |
493 | | /// |
494 | | /// Can be used to avoid implicit deserializations of preallocated |
495 | | /// preprocessed entities if we only care about entities of a specific file |
496 | | /// and not from files \#included in the range given at |
497 | | /// \see getPreprocessedEntitiesInRange. |
498 | | bool isEntityInFileID(iterator PPEI, FileID FID); |
499 | | |
500 | | /// Add a new preprocessed entity to this record. |
501 | | PPEntityID addPreprocessedEntity(PreprocessedEntity *Entity); |
502 | | |
503 | | /// Set the external source for preprocessed entities. |
504 | | void SetExternalSource(ExternalPreprocessingRecordSource &Source); |
505 | | |
506 | | /// Retrieve the external source for preprocessed entities. |
507 | 1.53k | ExternalPreprocessingRecordSource *getExternalSource() const { |
508 | 1.53k | return ExternalSource; |
509 | 1.53k | } |
510 | | |
511 | | /// Retrieve the macro definition that corresponds to the given |
512 | | /// \c MacroInfo. |
513 | | MacroDefinitionRecord *findMacroDefinition(const MacroInfo *MI); |
514 | | |
515 | | /// Retrieve all ranges that got skipped while preprocessing. |
516 | 286 | const std::vector<SourceRange> &getSkippedRanges() { |
517 | 286 | ensureSkippedRangesLoaded(); |
518 | 286 | return SkippedRanges; |
519 | 286 | } |
520 | | |
521 | | private: |
522 | | friend class ASTReader; |
523 | | friend class ASTWriter; |
524 | | |
525 | | void MacroExpands(const Token &Id, const MacroDefinition &MD, |
526 | | SourceRange Range, const MacroArgs *Args) override; |
527 | | void MacroDefined(const Token &Id, const MacroDirective *MD) override; |
528 | | void MacroUndefined(const Token &Id, const MacroDefinition &MD, |
529 | | const MacroDirective *Undef) override; |
530 | | void InclusionDirective(SourceLocation HashLoc, const Token &IncludeTok, |
531 | | StringRef FileName, bool IsAngled, |
532 | | CharSourceRange FilenameRange, |
533 | | Optional<FileEntryRef> File, StringRef SearchPath, |
534 | | StringRef RelativePath, const Module *Imported, |
535 | | SrcMgr::CharacteristicKind FileType) override; |
536 | | void Ifdef(SourceLocation Loc, const Token &MacroNameTok, |
537 | | const MacroDefinition &MD) override; |
538 | | void Ifndef(SourceLocation Loc, const Token &MacroNameTok, |
539 | | const MacroDefinition &MD) override; |
540 | | |
541 | | using PPCallbacks::Elifdef; |
542 | | using PPCallbacks::Elifndef; |
543 | | void Elifdef(SourceLocation Loc, const Token &MacroNameTok, |
544 | | const MacroDefinition &MD) override; |
545 | | void Elifndef(SourceLocation Loc, const Token &MacroNameTok, |
546 | | const MacroDefinition &MD) override; |
547 | | |
548 | | /// Hook called whenever the 'defined' operator is seen. |
549 | | void Defined(const Token &MacroNameTok, const MacroDefinition &MD, |
550 | | SourceRange Range) override; |
551 | | |
552 | | void SourceRangeSkipped(SourceRange Range, |
553 | | SourceLocation EndifLoc) override; |
554 | | |
555 | | void addMacroExpansion(const Token &Id, const MacroInfo *MI, |
556 | | SourceRange Range); |
557 | | |
558 | | /// Cached result of the last \see getPreprocessedEntitiesInRange |
559 | | /// query. |
560 | | struct { |
561 | | SourceRange Range; |
562 | | std::pair<int, int> Result; |
563 | | } CachedRangeQuery; |
564 | | |
565 | | std::pair<int, int> getPreprocessedEntitiesInRangeSlow(SourceRange R); |
566 | | }; |
567 | | |
568 | | } // namespace clang |
569 | | |
570 | | inline void *operator new(size_t bytes, clang::PreprocessingRecord &PR, |
571 | 688k | unsigned alignment) noexcept { |
572 | 688k | return PR.Allocate(bytes, alignment); |
573 | 688k | } |
574 | | |
575 | | inline void operator delete(void *ptr, clang::PreprocessingRecord &PR, |
576 | 0 | unsigned) noexcept { |
577 | 0 | PR.Deallocate(ptr); |
578 | 0 | } |
579 | | |
580 | | #endif // LLVM_CLANG_LEX_PREPROCESSINGRECORD_H |