File: | tools/clang/lib/Serialization/ASTReader.cpp |
Warning: | line 1049, column 18 Called C++ object pointer is null |
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1 | //===- ASTReader.cpp - AST File Reader ------------------------------------===// | |||
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 defines the ASTReader class, which reads AST files. | |||
11 | // | |||
12 | //===----------------------------------------------------------------------===// | |||
13 | ||||
14 | #include "clang/Serialization/ASTReader.h" | |||
15 | #include "ASTCommon.h" | |||
16 | #include "ASTReaderInternals.h" | |||
17 | #include "clang/AST/ASTConsumer.h" | |||
18 | #include "clang/AST/ASTContext.h" | |||
19 | #include "clang/AST/ASTMutationListener.h" | |||
20 | #include "clang/AST/ASTUnresolvedSet.h" | |||
21 | #include "clang/AST/Decl.h" | |||
22 | #include "clang/AST/DeclBase.h" | |||
23 | #include "clang/AST/DeclCXX.h" | |||
24 | #include "clang/AST/DeclFriend.h" | |||
25 | #include "clang/AST/DeclGroup.h" | |||
26 | #include "clang/AST/DeclObjC.h" | |||
27 | #include "clang/AST/DeclTemplate.h" | |||
28 | #include "clang/AST/DeclarationName.h" | |||
29 | #include "clang/AST/Expr.h" | |||
30 | #include "clang/AST/ExprCXX.h" | |||
31 | #include "clang/AST/ExternalASTSource.h" | |||
32 | #include "clang/AST/NestedNameSpecifier.h" | |||
33 | #include "clang/AST/ODRHash.h" | |||
34 | #include "clang/AST/RawCommentList.h" | |||
35 | #include "clang/AST/TemplateBase.h" | |||
36 | #include "clang/AST/TemplateName.h" | |||
37 | #include "clang/AST/Type.h" | |||
38 | #include "clang/AST/TypeLoc.h" | |||
39 | #include "clang/AST/TypeLocVisitor.h" | |||
40 | #include "clang/AST/UnresolvedSet.h" | |||
41 | #include "clang/Basic/CommentOptions.h" | |||
42 | #include "clang/Basic/Diagnostic.h" | |||
43 | #include "clang/Basic/DiagnosticOptions.h" | |||
44 | #include "clang/Basic/ExceptionSpecificationType.h" | |||
45 | #include "clang/Basic/FileManager.h" | |||
46 | #include "clang/Basic/FileSystemOptions.h" | |||
47 | #include "clang/Basic/IdentifierTable.h" | |||
48 | #include "clang/Basic/LLVM.h" | |||
49 | #include "clang/Basic/LangOptions.h" | |||
50 | #include "clang/Basic/MemoryBufferCache.h" | |||
51 | #include "clang/Basic/Module.h" | |||
52 | #include "clang/Basic/ObjCRuntime.h" | |||
53 | #include "clang/Basic/OperatorKinds.h" | |||
54 | #include "clang/Basic/PragmaKinds.h" | |||
55 | #include "clang/Basic/Sanitizers.h" | |||
56 | #include "clang/Basic/SourceLocation.h" | |||
57 | #include "clang/Basic/SourceManager.h" | |||
58 | #include "clang/Basic/SourceManagerInternals.h" | |||
59 | #include "clang/Basic/Specifiers.h" | |||
60 | #include "clang/Basic/TargetInfo.h" | |||
61 | #include "clang/Basic/TargetOptions.h" | |||
62 | #include "clang/Basic/TokenKinds.h" | |||
63 | #include "clang/Basic/Version.h" | |||
64 | #include "clang/Basic/VersionTuple.h" | |||
65 | #include "clang/Frontend/PCHContainerOperations.h" | |||
66 | #include "clang/Lex/HeaderSearch.h" | |||
67 | #include "clang/Lex/HeaderSearchOptions.h" | |||
68 | #include "clang/Lex/MacroInfo.h" | |||
69 | #include "clang/Lex/ModuleMap.h" | |||
70 | #include "clang/Lex/PreprocessingRecord.h" | |||
71 | #include "clang/Lex/Preprocessor.h" | |||
72 | #include "clang/Lex/PreprocessorOptions.h" | |||
73 | #include "clang/Lex/Token.h" | |||
74 | #include "clang/Sema/ObjCMethodList.h" | |||
75 | #include "clang/Sema/Scope.h" | |||
76 | #include "clang/Sema/Sema.h" | |||
77 | #include "clang/Sema/Weak.h" | |||
78 | #include "clang/Serialization/ASTBitCodes.h" | |||
79 | #include "clang/Serialization/ASTDeserializationListener.h" | |||
80 | #include "clang/Serialization/ContinuousRangeMap.h" | |||
81 | #include "clang/Serialization/GlobalModuleIndex.h" | |||
82 | #include "clang/Serialization/Module.h" | |||
83 | #include "clang/Serialization/ModuleFileExtension.h" | |||
84 | #include "clang/Serialization/ModuleManager.h" | |||
85 | #include "clang/Serialization/SerializationDiagnostic.h" | |||
86 | #include "llvm/ADT/APFloat.h" | |||
87 | #include "llvm/ADT/APInt.h" | |||
88 | #include "llvm/ADT/APSInt.h" | |||
89 | #include "llvm/ADT/ArrayRef.h" | |||
90 | #include "llvm/ADT/DenseMap.h" | |||
91 | #include "llvm/ADT/FoldingSet.h" | |||
92 | #include "llvm/ADT/Hashing.h" | |||
93 | #include "llvm/ADT/IntrusiveRefCntPtr.h" | |||
94 | #include "llvm/ADT/None.h" | |||
95 | #include "llvm/ADT/Optional.h" | |||
96 | #include "llvm/ADT/STLExtras.h" | |||
97 | #include "llvm/ADT/SmallPtrSet.h" | |||
98 | #include "llvm/ADT/SmallString.h" | |||
99 | #include "llvm/ADT/SmallVector.h" | |||
100 | #include "llvm/ADT/StringExtras.h" | |||
101 | #include "llvm/ADT/StringMap.h" | |||
102 | #include "llvm/ADT/StringRef.h" | |||
103 | #include "llvm/ADT/Triple.h" | |||
104 | #include "llvm/ADT/iterator_range.h" | |||
105 | #include "llvm/Bitcode/BitstreamReader.h" | |||
106 | #include "llvm/Support/Casting.h" | |||
107 | #include "llvm/Support/Compression.h" | |||
108 | #include "llvm/Support/Compiler.h" | |||
109 | #include "llvm/Support/DJB.h" | |||
110 | #include "llvm/Support/Endian.h" | |||
111 | #include "llvm/Support/Error.h" | |||
112 | #include "llvm/Support/ErrorHandling.h" | |||
113 | #include "llvm/Support/FileSystem.h" | |||
114 | #include "llvm/Support/MemoryBuffer.h" | |||
115 | #include "llvm/Support/Path.h" | |||
116 | #include "llvm/Support/SaveAndRestore.h" | |||
117 | #include "llvm/Support/Timer.h" | |||
118 | #include "llvm/Support/raw_ostream.h" | |||
119 | #include <algorithm> | |||
120 | #include <cassert> | |||
121 | #include <cstddef> | |||
122 | #include <cstdint> | |||
123 | #include <cstdio> | |||
124 | #include <ctime> | |||
125 | #include <iterator> | |||
126 | #include <limits> | |||
127 | #include <map> | |||
128 | #include <memory> | |||
129 | #include <string> | |||
130 | #include <system_error> | |||
131 | #include <tuple> | |||
132 | #include <utility> | |||
133 | #include <vector> | |||
134 | ||||
135 | using namespace clang; | |||
136 | using namespace clang::serialization; | |||
137 | using namespace clang::serialization::reader; | |||
138 | using llvm::BitstreamCursor; | |||
139 | ||||
140 | //===----------------------------------------------------------------------===// | |||
141 | // ChainedASTReaderListener implementation | |||
142 | //===----------------------------------------------------------------------===// | |||
143 | ||||
144 | bool | |||
145 | ChainedASTReaderListener::ReadFullVersionInformation(StringRef FullVersion) { | |||
146 | return First->ReadFullVersionInformation(FullVersion) || | |||
147 | Second->ReadFullVersionInformation(FullVersion); | |||
148 | } | |||
149 | ||||
150 | void ChainedASTReaderListener::ReadModuleName(StringRef ModuleName) { | |||
151 | First->ReadModuleName(ModuleName); | |||
152 | Second->ReadModuleName(ModuleName); | |||
153 | } | |||
154 | ||||
155 | void ChainedASTReaderListener::ReadModuleMapFile(StringRef ModuleMapPath) { | |||
156 | First->ReadModuleMapFile(ModuleMapPath); | |||
157 | Second->ReadModuleMapFile(ModuleMapPath); | |||
158 | } | |||
159 | ||||
160 | bool | |||
161 | ChainedASTReaderListener::ReadLanguageOptions(const LangOptions &LangOpts, | |||
162 | bool Complain, | |||
163 | bool AllowCompatibleDifferences) { | |||
164 | return First->ReadLanguageOptions(LangOpts, Complain, | |||
165 | AllowCompatibleDifferences) || | |||
166 | Second->ReadLanguageOptions(LangOpts, Complain, | |||
167 | AllowCompatibleDifferences); | |||
168 | } | |||
169 | ||||
170 | bool ChainedASTReaderListener::ReadTargetOptions( | |||
171 | const TargetOptions &TargetOpts, bool Complain, | |||
172 | bool AllowCompatibleDifferences) { | |||
173 | return First->ReadTargetOptions(TargetOpts, Complain, | |||
174 | AllowCompatibleDifferences) || | |||
175 | Second->ReadTargetOptions(TargetOpts, Complain, | |||
176 | AllowCompatibleDifferences); | |||
177 | } | |||
178 | ||||
179 | bool ChainedASTReaderListener::ReadDiagnosticOptions( | |||
180 | IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts, bool Complain) { | |||
181 | return First->ReadDiagnosticOptions(DiagOpts, Complain) || | |||
182 | Second->ReadDiagnosticOptions(DiagOpts, Complain); | |||
183 | } | |||
184 | ||||
185 | bool | |||
186 | ChainedASTReaderListener::ReadFileSystemOptions(const FileSystemOptions &FSOpts, | |||
187 | bool Complain) { | |||
188 | return First->ReadFileSystemOptions(FSOpts, Complain) || | |||
189 | Second->ReadFileSystemOptions(FSOpts, Complain); | |||
190 | } | |||
191 | ||||
192 | bool ChainedASTReaderListener::ReadHeaderSearchOptions( | |||
193 | const HeaderSearchOptions &HSOpts, StringRef SpecificModuleCachePath, | |||
194 | bool Complain) { | |||
195 | return First->ReadHeaderSearchOptions(HSOpts, SpecificModuleCachePath, | |||
196 | Complain) || | |||
197 | Second->ReadHeaderSearchOptions(HSOpts, SpecificModuleCachePath, | |||
198 | Complain); | |||
199 | } | |||
200 | ||||
201 | bool ChainedASTReaderListener::ReadPreprocessorOptions( | |||
202 | const PreprocessorOptions &PPOpts, bool Complain, | |||
203 | std::string &SuggestedPredefines) { | |||
204 | return First->ReadPreprocessorOptions(PPOpts, Complain, | |||
205 | SuggestedPredefines) || | |||
206 | Second->ReadPreprocessorOptions(PPOpts, Complain, SuggestedPredefines); | |||
207 | } | |||
208 | ||||
209 | void ChainedASTReaderListener::ReadCounter(const serialization::ModuleFile &M, | |||
210 | unsigned Value) { | |||
211 | First->ReadCounter(M, Value); | |||
212 | Second->ReadCounter(M, Value); | |||
213 | } | |||
214 | ||||
215 | bool ChainedASTReaderListener::needsInputFileVisitation() { | |||
216 | return First->needsInputFileVisitation() || | |||
217 | Second->needsInputFileVisitation(); | |||
218 | } | |||
219 | ||||
220 | bool ChainedASTReaderListener::needsSystemInputFileVisitation() { | |||
221 | return First->needsSystemInputFileVisitation() || | |||
222 | Second->needsSystemInputFileVisitation(); | |||
223 | } | |||
224 | ||||
225 | void ChainedASTReaderListener::visitModuleFile(StringRef Filename, | |||
226 | ModuleKind Kind) { | |||
227 | First->visitModuleFile(Filename, Kind); | |||
228 | Second->visitModuleFile(Filename, Kind); | |||
229 | } | |||
230 | ||||
231 | bool ChainedASTReaderListener::visitInputFile(StringRef Filename, | |||
232 | bool isSystem, | |||
233 | bool isOverridden, | |||
234 | bool isExplicitModule) { | |||
235 | bool Continue = false; | |||
236 | if (First->needsInputFileVisitation() && | |||
237 | (!isSystem || First->needsSystemInputFileVisitation())) | |||
238 | Continue |= First->visitInputFile(Filename, isSystem, isOverridden, | |||
239 | isExplicitModule); | |||
240 | if (Second->needsInputFileVisitation() && | |||
241 | (!isSystem || Second->needsSystemInputFileVisitation())) | |||
242 | Continue |= Second->visitInputFile(Filename, isSystem, isOverridden, | |||
243 | isExplicitModule); | |||
244 | return Continue; | |||
245 | } | |||
246 | ||||
247 | void ChainedASTReaderListener::readModuleFileExtension( | |||
248 | const ModuleFileExtensionMetadata &Metadata) { | |||
249 | First->readModuleFileExtension(Metadata); | |||
250 | Second->readModuleFileExtension(Metadata); | |||
251 | } | |||
252 | ||||
253 | //===----------------------------------------------------------------------===// | |||
254 | // PCH validator implementation | |||
255 | //===----------------------------------------------------------------------===// | |||
256 | ||||
257 | ASTReaderListener::~ASTReaderListener() = default; | |||
258 | ||||
259 | /// \brief Compare the given set of language options against an existing set of | |||
260 | /// language options. | |||
261 | /// | |||
262 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine. | |||
263 | /// \param AllowCompatibleDifferences If true, differences between compatible | |||
264 | /// language options will be permitted. | |||
265 | /// | |||
266 | /// \returns true if the languagae options mis-match, false otherwise. | |||
267 | static bool checkLanguageOptions(const LangOptions &LangOpts, | |||
268 | const LangOptions &ExistingLangOpts, | |||
269 | DiagnosticsEngine *Diags, | |||
270 | bool AllowCompatibleDifferences = true) { | |||
271 | #define LANGOPT(Name, Bits, Default, Description) \ | |||
272 | if (ExistingLangOpts.Name != LangOpts.Name) { \ | |||
273 | if (Diags) \ | |||
274 | Diags->Report(diag::err_pch_langopt_mismatch) \ | |||
275 | << Description << LangOpts.Name << ExistingLangOpts.Name; \ | |||
276 | return true; \ | |||
277 | } | |||
278 | ||||
279 | #define VALUE_LANGOPT(Name, Bits, Default, Description) \ | |||
280 | if (ExistingLangOpts.Name != LangOpts.Name) { \ | |||
281 | if (Diags) \ | |||
282 | Diags->Report(diag::err_pch_langopt_value_mismatch) \ | |||
283 | << Description; \ | |||
284 | return true; \ | |||
285 | } | |||
286 | ||||
287 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ | |||
288 | if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \ | |||
289 | if (Diags) \ | |||
290 | Diags->Report(diag::err_pch_langopt_value_mismatch) \ | |||
291 | << Description; \ | |||
292 | return true; \ | |||
293 | } | |||
294 | ||||
295 | #define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \ | |||
296 | if (!AllowCompatibleDifferences) \ | |||
297 | LANGOPT(Name, Bits, Default, Description) | |||
298 | ||||
299 | #define COMPATIBLE_ENUM_LANGOPT(Name, Bits, Default, Description) \ | |||
300 | if (!AllowCompatibleDifferences) \ | |||
301 | ENUM_LANGOPT(Name, Bits, Default, Description) | |||
302 | ||||
303 | #define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \ | |||
304 | if (!AllowCompatibleDifferences) \ | |||
305 | VALUE_LANGOPT(Name, Bits, Default, Description) | |||
306 | ||||
307 | #define BENIGN_LANGOPT(Name, Bits, Default, Description) | |||
308 | #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) | |||
309 | #define BENIGN_VALUE_LANGOPT(Name, Type, Bits, Default, Description) | |||
310 | #include "clang/Basic/LangOptions.def" | |||
311 | ||||
312 | if (ExistingLangOpts.ModuleFeatures != LangOpts.ModuleFeatures) { | |||
313 | if (Diags) | |||
314 | Diags->Report(diag::err_pch_langopt_value_mismatch) << "module features"; | |||
315 | return true; | |||
316 | } | |||
317 | ||||
318 | if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) { | |||
319 | if (Diags) | |||
320 | Diags->Report(diag::err_pch_langopt_value_mismatch) | |||
321 | << "target Objective-C runtime"; | |||
322 | return true; | |||
323 | } | |||
324 | ||||
325 | if (ExistingLangOpts.CommentOpts.BlockCommandNames != | |||
326 | LangOpts.CommentOpts.BlockCommandNames) { | |||
327 | if (Diags) | |||
328 | Diags->Report(diag::err_pch_langopt_value_mismatch) | |||
329 | << "block command names"; | |||
330 | return true; | |||
331 | } | |||
332 | ||||
333 | // Sanitizer feature mismatches are treated as compatible differences. If | |||
334 | // compatible differences aren't allowed, we still only want to check for | |||
335 | // mismatches of non-modular sanitizers (the only ones which can affect AST | |||
336 | // generation). | |||
337 | if (!AllowCompatibleDifferences) { | |||
338 | SanitizerMask ModularSanitizers = getPPTransparentSanitizers(); | |||
339 | SanitizerSet ExistingSanitizers = ExistingLangOpts.Sanitize; | |||
340 | SanitizerSet ImportedSanitizers = LangOpts.Sanitize; | |||
341 | ExistingSanitizers.clear(ModularSanitizers); | |||
342 | ImportedSanitizers.clear(ModularSanitizers); | |||
343 | if (ExistingSanitizers.Mask != ImportedSanitizers.Mask) { | |||
344 | const std::string Flag = "-fsanitize="; | |||
345 | if (Diags) { | |||
346 | #define SANITIZER(NAME, ID) \ | |||
347 | { \ | |||
348 | bool InExistingModule = ExistingSanitizers.has(SanitizerKind::ID); \ | |||
349 | bool InImportedModule = ImportedSanitizers.has(SanitizerKind::ID); \ | |||
350 | if (InExistingModule != InImportedModule) \ | |||
351 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) \ | |||
352 | << InExistingModule << (Flag + NAME); \ | |||
353 | } | |||
354 | #include "clang/Basic/Sanitizers.def" | |||
355 | } | |||
356 | return true; | |||
357 | } | |||
358 | } | |||
359 | ||||
360 | return false; | |||
361 | } | |||
362 | ||||
363 | /// \brief Compare the given set of target options against an existing set of | |||
364 | /// target options. | |||
365 | /// | |||
366 | /// \param Diags If non-NULL, diagnostics will be emitted via this engine. | |||
367 | /// | |||
368 | /// \returns true if the target options mis-match, false otherwise. | |||
369 | static bool checkTargetOptions(const TargetOptions &TargetOpts, | |||
370 | const TargetOptions &ExistingTargetOpts, | |||
371 | DiagnosticsEngine *Diags, | |||
372 | bool AllowCompatibleDifferences = true) { | |||
373 | #define CHECK_TARGET_OPT(Field, Name) \ | |||
374 | if (TargetOpts.Field != ExistingTargetOpts.Field) { \ | |||
375 | if (Diags) \ | |||
376 | Diags->Report(diag::err_pch_targetopt_mismatch) \ | |||
377 | << Name << TargetOpts.Field << ExistingTargetOpts.Field; \ | |||
378 | return true; \ | |||
379 | } | |||
380 | ||||
381 | // The triple and ABI must match exactly. | |||
382 | CHECK_TARGET_OPT(Triple, "target"); | |||
383 | CHECK_TARGET_OPT(ABI, "target ABI"); | |||
384 | ||||
385 | // We can tolerate different CPUs in many cases, notably when one CPU | |||
386 | // supports a strict superset of another. When allowing compatible | |||
387 | // differences skip this check. | |||
388 | if (!AllowCompatibleDifferences) | |||
389 | CHECK_TARGET_OPT(CPU, "target CPU"); | |||
390 | ||||
391 | #undef CHECK_TARGET_OPT | |||
392 | ||||
393 | // Compare feature sets. | |||
394 | SmallVector<StringRef, 4> ExistingFeatures( | |||
395 | ExistingTargetOpts.FeaturesAsWritten.begin(), | |||
396 | ExistingTargetOpts.FeaturesAsWritten.end()); | |||
397 | SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(), | |||
398 | TargetOpts.FeaturesAsWritten.end()); | |||
399 | llvm::sort(ExistingFeatures.begin(), ExistingFeatures.end()); | |||
400 | llvm::sort(ReadFeatures.begin(), ReadFeatures.end()); | |||
401 | ||||
402 | // We compute the set difference in both directions explicitly so that we can | |||
403 | // diagnose the differences differently. | |||
404 | SmallVector<StringRef, 4> UnmatchedExistingFeatures, UnmatchedReadFeatures; | |||
405 | std::set_difference( | |||
406 | ExistingFeatures.begin(), ExistingFeatures.end(), ReadFeatures.begin(), | |||
407 | ReadFeatures.end(), std::back_inserter(UnmatchedExistingFeatures)); | |||
408 | std::set_difference(ReadFeatures.begin(), ReadFeatures.end(), | |||
409 | ExistingFeatures.begin(), ExistingFeatures.end(), | |||
410 | std::back_inserter(UnmatchedReadFeatures)); | |||
411 | ||||
412 | // If we are allowing compatible differences and the read feature set is | |||
413 | // a strict subset of the existing feature set, there is nothing to diagnose. | |||
414 | if (AllowCompatibleDifferences && UnmatchedReadFeatures.empty()) | |||
415 | return false; | |||
416 | ||||
417 | if (Diags) { | |||
418 | for (StringRef Feature : UnmatchedReadFeatures) | |||
419 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) | |||
420 | << /* is-existing-feature */ false << Feature; | |||
421 | for (StringRef Feature : UnmatchedExistingFeatures) | |||
422 | Diags->Report(diag::err_pch_targetopt_feature_mismatch) | |||
423 | << /* is-existing-feature */ true << Feature; | |||
424 | } | |||
425 | ||||
426 | return !UnmatchedReadFeatures.empty() || !UnmatchedExistingFeatures.empty(); | |||
427 | } | |||
428 | ||||
429 | bool | |||
430 | PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts, | |||
431 | bool Complain, | |||
432 | bool AllowCompatibleDifferences) { | |||
433 | const LangOptions &ExistingLangOpts = PP.getLangOpts(); | |||
434 | return checkLanguageOptions(LangOpts, ExistingLangOpts, | |||
435 | Complain ? &Reader.Diags : nullptr, | |||
436 | AllowCompatibleDifferences); | |||
437 | } | |||
438 | ||||
439 | bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts, | |||
440 | bool Complain, | |||
441 | bool AllowCompatibleDifferences) { | |||
442 | const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts(); | |||
443 | return checkTargetOptions(TargetOpts, ExistingTargetOpts, | |||
444 | Complain ? &Reader.Diags : nullptr, | |||
445 | AllowCompatibleDifferences); | |||
446 | } | |||
447 | ||||
448 | namespace { | |||
449 | ||||
450 | using MacroDefinitionsMap = | |||
451 | llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/>>; | |||
452 | using DeclsMap = llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8>>; | |||
453 | ||||
454 | } // namespace | |||
455 | ||||
456 | static bool checkDiagnosticGroupMappings(DiagnosticsEngine &StoredDiags, | |||
457 | DiagnosticsEngine &Diags, | |||
458 | bool Complain) { | |||
459 | using Level = DiagnosticsEngine::Level; | |||
460 | ||||
461 | // Check current mappings for new -Werror mappings, and the stored mappings | |||
462 | // for cases that were explicitly mapped to *not* be errors that are now | |||
463 | // errors because of options like -Werror. | |||
464 | DiagnosticsEngine *MappingSources[] = { &Diags, &StoredDiags }; | |||
465 | ||||
466 | for (DiagnosticsEngine *MappingSource : MappingSources) { | |||
467 | for (auto DiagIDMappingPair : MappingSource->getDiagnosticMappings()) { | |||
468 | diag::kind DiagID = DiagIDMappingPair.first; | |||
469 | Level CurLevel = Diags.getDiagnosticLevel(DiagID, SourceLocation()); | |||
470 | if (CurLevel < DiagnosticsEngine::Error) | |||
471 | continue; // not significant | |||
472 | Level StoredLevel = | |||
473 | StoredDiags.getDiagnosticLevel(DiagID, SourceLocation()); | |||
474 | if (StoredLevel < DiagnosticsEngine::Error) { | |||
475 | if (Complain) | |||
476 | Diags.Report(diag::err_pch_diagopt_mismatch) << "-Werror=" + | |||
477 | Diags.getDiagnosticIDs()->getWarningOptionForDiag(DiagID).str(); | |||
478 | return true; | |||
479 | } | |||
480 | } | |||
481 | } | |||
482 | ||||
483 | return false; | |||
484 | } | |||
485 | ||||
486 | static bool isExtHandlingFromDiagsError(DiagnosticsEngine &Diags) { | |||
487 | diag::Severity Ext = Diags.getExtensionHandlingBehavior(); | |||
488 | if (Ext == diag::Severity::Warning && Diags.getWarningsAsErrors()) | |||
489 | return true; | |||
490 | return Ext >= diag::Severity::Error; | |||
491 | } | |||
492 | ||||
493 | static bool checkDiagnosticMappings(DiagnosticsEngine &StoredDiags, | |||
494 | DiagnosticsEngine &Diags, | |||
495 | bool IsSystem, bool Complain) { | |||
496 | // Top-level options | |||
497 | if (IsSystem) { | |||
498 | if (Diags.getSuppressSystemWarnings()) | |||
499 | return false; | |||
500 | // If -Wsystem-headers was not enabled before, be conservative | |||
501 | if (StoredDiags.getSuppressSystemWarnings()) { | |||
502 | if (Complain) | |||
503 | Diags.Report(diag::err_pch_diagopt_mismatch) << "-Wsystem-headers"; | |||
504 | return true; | |||
505 | } | |||
506 | } | |||
507 | ||||
508 | if (Diags.getWarningsAsErrors() && !StoredDiags.getWarningsAsErrors()) { | |||
509 | if (Complain) | |||
510 | Diags.Report(diag::err_pch_diagopt_mismatch) << "-Werror"; | |||
511 | return true; | |||
512 | } | |||
513 | ||||
514 | if (Diags.getWarningsAsErrors() && Diags.getEnableAllWarnings() && | |||
515 | !StoredDiags.getEnableAllWarnings()) { | |||
516 | if (Complain) | |||
517 | Diags.Report(diag::err_pch_diagopt_mismatch) << "-Weverything -Werror"; | |||
518 | return true; | |||
519 | } | |||
520 | ||||
521 | if (isExtHandlingFromDiagsError(Diags) && | |||
522 | !isExtHandlingFromDiagsError(StoredDiags)) { | |||
523 | if (Complain) | |||
524 | Diags.Report(diag::err_pch_diagopt_mismatch) << "-pedantic-errors"; | |||
525 | return true; | |||
526 | } | |||
527 | ||||
528 | return checkDiagnosticGroupMappings(StoredDiags, Diags, Complain); | |||
529 | } | |||
530 | ||||
531 | /// Return the top import module if it is implicit, nullptr otherwise. | |||
532 | static Module *getTopImportImplicitModule(ModuleManager &ModuleMgr, | |||
533 | Preprocessor &PP) { | |||
534 | // If the original import came from a file explicitly generated by the user, | |||
535 | // don't check the diagnostic mappings. | |||
536 | // FIXME: currently this is approximated by checking whether this is not a | |||
537 | // module import of an implicitly-loaded module file. | |||
538 | // Note: ModuleMgr.rbegin() may not be the current module, but it must be in | |||
539 | // the transitive closure of its imports, since unrelated modules cannot be | |||
540 | // imported until after this module finishes validation. | |||
541 | ModuleFile *TopImport = &*ModuleMgr.rbegin(); | |||
542 | while (!TopImport->ImportedBy.empty()) | |||
543 | TopImport = TopImport->ImportedBy[0]; | |||
544 | if (TopImport->Kind != MK_ImplicitModule) | |||
545 | return nullptr; | |||
546 | ||||
547 | StringRef ModuleName = TopImport->ModuleName; | |||
548 | assert(!ModuleName.empty() && "diagnostic options read before module name")(static_cast <bool> (!ModuleName.empty() && "diagnostic options read before module name" ) ? void (0) : __assert_fail ("!ModuleName.empty() && \"diagnostic options read before module name\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 548, __extension__ __PRETTY_FUNCTION__)); | |||
549 | ||||
550 | Module *M = PP.getHeaderSearchInfo().lookupModule(ModuleName); | |||
551 | assert(M && "missing module")(static_cast <bool> (M && "missing module") ? void (0) : __assert_fail ("M && \"missing module\"", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 551, __extension__ __PRETTY_FUNCTION__)); | |||
552 | return M; | |||
553 | } | |||
554 | ||||
555 | bool PCHValidator::ReadDiagnosticOptions( | |||
556 | IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts, bool Complain) { | |||
557 | DiagnosticsEngine &ExistingDiags = PP.getDiagnostics(); | |||
558 | IntrusiveRefCntPtr<DiagnosticIDs> DiagIDs(ExistingDiags.getDiagnosticIDs()); | |||
559 | IntrusiveRefCntPtr<DiagnosticsEngine> Diags( | |||
560 | new DiagnosticsEngine(DiagIDs, DiagOpts.get())); | |||
561 | // This should never fail, because we would have processed these options | |||
562 | // before writing them to an ASTFile. | |||
563 | ProcessWarningOptions(*Diags, *DiagOpts, /*Report*/false); | |||
564 | ||||
565 | ModuleManager &ModuleMgr = Reader.getModuleManager(); | |||
566 | assert(ModuleMgr.size() >= 1 && "what ASTFile is this then")(static_cast <bool> (ModuleMgr.size() >= 1 && "what ASTFile is this then") ? void (0) : __assert_fail ("ModuleMgr.size() >= 1 && \"what ASTFile is this then\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 566, __extension__ __PRETTY_FUNCTION__)); | |||
567 | ||||
568 | Module *TopM = getTopImportImplicitModule(ModuleMgr, PP); | |||
569 | if (!TopM) | |||
570 | return false; | |||
571 | ||||
572 | // FIXME: if the diagnostics are incompatible, save a DiagnosticOptions that | |||
573 | // contains the union of their flags. | |||
574 | return checkDiagnosticMappings(*Diags, ExistingDiags, TopM->IsSystem, | |||
575 | Complain); | |||
576 | } | |||
577 | ||||
578 | /// \brief Collect the macro definitions provided by the given preprocessor | |||
579 | /// options. | |||
580 | static void | |||
581 | collectMacroDefinitions(const PreprocessorOptions &PPOpts, | |||
582 | MacroDefinitionsMap &Macros, | |||
583 | SmallVectorImpl<StringRef> *MacroNames = nullptr) { | |||
584 | for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) { | |||
585 | StringRef Macro = PPOpts.Macros[I].first; | |||
586 | bool IsUndef = PPOpts.Macros[I].second; | |||
587 | ||||
588 | std::pair<StringRef, StringRef> MacroPair = Macro.split('='); | |||
589 | StringRef MacroName = MacroPair.first; | |||
590 | StringRef MacroBody = MacroPair.second; | |||
591 | ||||
592 | // For an #undef'd macro, we only care about the name. | |||
593 | if (IsUndef) { | |||
594 | if (MacroNames && !Macros.count(MacroName)) | |||
595 | MacroNames->push_back(MacroName); | |||
596 | ||||
597 | Macros[MacroName] = std::make_pair("", true); | |||
598 | continue; | |||
599 | } | |||
600 | ||||
601 | // For a #define'd macro, figure out the actual definition. | |||
602 | if (MacroName.size() == Macro.size()) | |||
603 | MacroBody = "1"; | |||
604 | else { | |||
605 | // Note: GCC drops anything following an end-of-line character. | |||
606 | StringRef::size_type End = MacroBody.find_first_of("\n\r"); | |||
607 | MacroBody = MacroBody.substr(0, End); | |||
608 | } | |||
609 | ||||
610 | if (MacroNames && !Macros.count(MacroName)) | |||
611 | MacroNames->push_back(MacroName); | |||
612 | Macros[MacroName] = std::make_pair(MacroBody, false); | |||
613 | } | |||
614 | } | |||
615 | ||||
616 | /// \brief Check the preprocessor options deserialized from the control block | |||
617 | /// against the preprocessor options in an existing preprocessor. | |||
618 | /// | |||
619 | /// \param Diags If non-null, produce diagnostics for any mismatches incurred. | |||
620 | /// \param Validate If true, validate preprocessor options. If false, allow | |||
621 | /// macros defined by \p ExistingPPOpts to override those defined by | |||
622 | /// \p PPOpts in SuggestedPredefines. | |||
623 | static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts, | |||
624 | const PreprocessorOptions &ExistingPPOpts, | |||
625 | DiagnosticsEngine *Diags, | |||
626 | FileManager &FileMgr, | |||
627 | std::string &SuggestedPredefines, | |||
628 | const LangOptions &LangOpts, | |||
629 | bool Validate = true) { | |||
630 | // Check macro definitions. | |||
631 | MacroDefinitionsMap ASTFileMacros; | |||
632 | collectMacroDefinitions(PPOpts, ASTFileMacros); | |||
633 | MacroDefinitionsMap ExistingMacros; | |||
634 | SmallVector<StringRef, 4> ExistingMacroNames; | |||
635 | collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames); | |||
636 | ||||
637 | for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) { | |||
638 | // Dig out the macro definition in the existing preprocessor options. | |||
639 | StringRef MacroName = ExistingMacroNames[I]; | |||
640 | std::pair<StringRef, bool> Existing = ExistingMacros[MacroName]; | |||
641 | ||||
642 | // Check whether we know anything about this macro name or not. | |||
643 | llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/>>::iterator Known = | |||
644 | ASTFileMacros.find(MacroName); | |||
645 | if (!Validate || Known == ASTFileMacros.end()) { | |||
646 | // FIXME: Check whether this identifier was referenced anywhere in the | |||
647 | // AST file. If so, we should reject the AST file. Unfortunately, this | |||
648 | // information isn't in the control block. What shall we do about it? | |||
649 | ||||
650 | if (Existing.second) { | |||
651 | SuggestedPredefines += "#undef "; | |||
652 | SuggestedPredefines += MacroName.str(); | |||
653 | SuggestedPredefines += '\n'; | |||
654 | } else { | |||
655 | SuggestedPredefines += "#define "; | |||
656 | SuggestedPredefines += MacroName.str(); | |||
657 | SuggestedPredefines += ' '; | |||
658 | SuggestedPredefines += Existing.first.str(); | |||
659 | SuggestedPredefines += '\n'; | |||
660 | } | |||
661 | continue; | |||
662 | } | |||
663 | ||||
664 | // If the macro was defined in one but undef'd in the other, we have a | |||
665 | // conflict. | |||
666 | if (Existing.second != Known->second.second) { | |||
667 | if (Diags) { | |||
668 | Diags->Report(diag::err_pch_macro_def_undef) | |||
669 | << MacroName << Known->second.second; | |||
670 | } | |||
671 | return true; | |||
672 | } | |||
673 | ||||
674 | // If the macro was #undef'd in both, or if the macro bodies are identical, | |||
675 | // it's fine. | |||
676 | if (Existing.second || Existing.first == Known->second.first) | |||
677 | continue; | |||
678 | ||||
679 | // The macro bodies differ; complain. | |||
680 | if (Diags) { | |||
681 | Diags->Report(diag::err_pch_macro_def_conflict) | |||
682 | << MacroName << Known->second.first << Existing.first; | |||
683 | } | |||
684 | return true; | |||
685 | } | |||
686 | ||||
687 | // Check whether we're using predefines. | |||
688 | if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines && Validate) { | |||
689 | if (Diags) { | |||
690 | Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines; | |||
691 | } | |||
692 | return true; | |||
693 | } | |||
694 | ||||
695 | // Detailed record is important since it is used for the module cache hash. | |||
696 | if (LangOpts.Modules && | |||
697 | PPOpts.DetailedRecord != ExistingPPOpts.DetailedRecord && Validate) { | |||
698 | if (Diags) { | |||
699 | Diags->Report(diag::err_pch_pp_detailed_record) << PPOpts.DetailedRecord; | |||
700 | } | |||
701 | return true; | |||
702 | } | |||
703 | ||||
704 | // Compute the #include and #include_macros lines we need. | |||
705 | for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) { | |||
706 | StringRef File = ExistingPPOpts.Includes[I]; | |||
707 | if (File == ExistingPPOpts.ImplicitPCHInclude) | |||
708 | continue; | |||
709 | ||||
710 | if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File) | |||
711 | != PPOpts.Includes.end()) | |||
712 | continue; | |||
713 | ||||
714 | SuggestedPredefines += "#include \""; | |||
715 | SuggestedPredefines += File; | |||
716 | SuggestedPredefines += "\"\n"; | |||
717 | } | |||
718 | ||||
719 | for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) { | |||
720 | StringRef File = ExistingPPOpts.MacroIncludes[I]; | |||
721 | if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(), | |||
722 | File) | |||
723 | != PPOpts.MacroIncludes.end()) | |||
724 | continue; | |||
725 | ||||
726 | SuggestedPredefines += "#__include_macros \""; | |||
727 | SuggestedPredefines += File; | |||
728 | SuggestedPredefines += "\"\n##\n"; | |||
729 | } | |||
730 | ||||
731 | return false; | |||
732 | } | |||
733 | ||||
734 | bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, | |||
735 | bool Complain, | |||
736 | std::string &SuggestedPredefines) { | |||
737 | const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts(); | |||
738 | ||||
739 | return checkPreprocessorOptions(PPOpts, ExistingPPOpts, | |||
740 | Complain? &Reader.Diags : nullptr, | |||
741 | PP.getFileManager(), | |||
742 | SuggestedPredefines, | |||
743 | PP.getLangOpts()); | |||
744 | } | |||
745 | ||||
746 | bool SimpleASTReaderListener::ReadPreprocessorOptions( | |||
747 | const PreprocessorOptions &PPOpts, | |||
748 | bool Complain, | |||
749 | std::string &SuggestedPredefines) { | |||
750 | return checkPreprocessorOptions(PPOpts, | |||
751 | PP.getPreprocessorOpts(), | |||
752 | nullptr, | |||
753 | PP.getFileManager(), | |||
754 | SuggestedPredefines, | |||
755 | PP.getLangOpts(), | |||
756 | false); | |||
757 | } | |||
758 | ||||
759 | /// Check the header search options deserialized from the control block | |||
760 | /// against the header search options in an existing preprocessor. | |||
761 | /// | |||
762 | /// \param Diags If non-null, produce diagnostics for any mismatches incurred. | |||
763 | static bool checkHeaderSearchOptions(const HeaderSearchOptions &HSOpts, | |||
764 | StringRef SpecificModuleCachePath, | |||
765 | StringRef ExistingModuleCachePath, | |||
766 | DiagnosticsEngine *Diags, | |||
767 | const LangOptions &LangOpts) { | |||
768 | if (LangOpts.Modules) { | |||
769 | if (SpecificModuleCachePath != ExistingModuleCachePath) { | |||
770 | if (Diags) | |||
771 | Diags->Report(diag::err_pch_modulecache_mismatch) | |||
772 | << SpecificModuleCachePath << ExistingModuleCachePath; | |||
773 | return true; | |||
774 | } | |||
775 | } | |||
776 | ||||
777 | return false; | |||
778 | } | |||
779 | ||||
780 | bool PCHValidator::ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts, | |||
781 | StringRef SpecificModuleCachePath, | |||
782 | bool Complain) { | |||
783 | return checkHeaderSearchOptions(HSOpts, SpecificModuleCachePath, | |||
784 | PP.getHeaderSearchInfo().getModuleCachePath(), | |||
785 | Complain ? &Reader.Diags : nullptr, | |||
786 | PP.getLangOpts()); | |||
787 | } | |||
788 | ||||
789 | void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) { | |||
790 | PP.setCounterValue(Value); | |||
791 | } | |||
792 | ||||
793 | //===----------------------------------------------------------------------===// | |||
794 | // AST reader implementation | |||
795 | //===----------------------------------------------------------------------===// | |||
796 | ||||
797 | void ASTReader::setDeserializationListener(ASTDeserializationListener *Listener, | |||
798 | bool TakeOwnership) { | |||
799 | DeserializationListener = Listener; | |||
800 | OwnsDeserializationListener = TakeOwnership; | |||
801 | } | |||
802 | ||||
803 | unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) { | |||
804 | return serialization::ComputeHash(Sel); | |||
805 | } | |||
806 | ||||
807 | std::pair<unsigned, unsigned> | |||
808 | ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) { | |||
809 | using namespace llvm::support; | |||
810 | ||||
811 | unsigned KeyLen = endian::readNext<uint16_t, little, unaligned>(d); | |||
812 | unsigned DataLen = endian::readNext<uint16_t, little, unaligned>(d); | |||
813 | return std::make_pair(KeyLen, DataLen); | |||
814 | } | |||
815 | ||||
816 | ASTSelectorLookupTrait::internal_key_type | |||
817 | ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) { | |||
818 | using namespace llvm::support; | |||
819 | ||||
820 | SelectorTable &SelTable = Reader.getContext().Selectors; | |||
821 | unsigned N = endian::readNext<uint16_t, little, unaligned>(d); | |||
822 | IdentifierInfo *FirstII = Reader.getLocalIdentifier( | |||
823 | F, endian::readNext<uint32_t, little, unaligned>(d)); | |||
824 | if (N == 0) | |||
825 | return SelTable.getNullarySelector(FirstII); | |||
826 | else if (N == 1) | |||
827 | return SelTable.getUnarySelector(FirstII); | |||
828 | ||||
829 | SmallVector<IdentifierInfo *, 16> Args; | |||
830 | Args.push_back(FirstII); | |||
831 | for (unsigned I = 1; I != N; ++I) | |||
832 | Args.push_back(Reader.getLocalIdentifier( | |||
833 | F, endian::readNext<uint32_t, little, unaligned>(d))); | |||
834 | ||||
835 | return SelTable.getSelector(N, Args.data()); | |||
836 | } | |||
837 | ||||
838 | ASTSelectorLookupTrait::data_type | |||
839 | ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d, | |||
840 | unsigned DataLen) { | |||
841 | using namespace llvm::support; | |||
842 | ||||
843 | data_type Result; | |||
844 | ||||
845 | Result.ID = Reader.getGlobalSelectorID( | |||
846 | F, endian::readNext<uint32_t, little, unaligned>(d)); | |||
847 | unsigned FullInstanceBits = endian::readNext<uint16_t, little, unaligned>(d); | |||
848 | unsigned FullFactoryBits = endian::readNext<uint16_t, little, unaligned>(d); | |||
849 | Result.InstanceBits = FullInstanceBits & 0x3; | |||
850 | Result.InstanceHasMoreThanOneDecl = (FullInstanceBits >> 2) & 0x1; | |||
851 | Result.FactoryBits = FullFactoryBits & 0x3; | |||
852 | Result.FactoryHasMoreThanOneDecl = (FullFactoryBits >> 2) & 0x1; | |||
853 | unsigned NumInstanceMethods = FullInstanceBits >> 3; | |||
854 | unsigned NumFactoryMethods = FullFactoryBits >> 3; | |||
855 | ||||
856 | // Load instance methods | |||
857 | for (unsigned I = 0; I != NumInstanceMethods; ++I) { | |||
858 | if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>( | |||
859 | F, endian::readNext<uint32_t, little, unaligned>(d))) | |||
860 | Result.Instance.push_back(Method); | |||
861 | } | |||
862 | ||||
863 | // Load factory methods | |||
864 | for (unsigned I = 0; I != NumFactoryMethods; ++I) { | |||
865 | if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>( | |||
866 | F, endian::readNext<uint32_t, little, unaligned>(d))) | |||
867 | Result.Factory.push_back(Method); | |||
868 | } | |||
869 | ||||
870 | return Result; | |||
871 | } | |||
872 | ||||
873 | unsigned ASTIdentifierLookupTraitBase::ComputeHash(const internal_key_type& a) { | |||
874 | return llvm::djbHash(a); | |||
875 | } | |||
876 | ||||
877 | std::pair<unsigned, unsigned> | |||
878 | ASTIdentifierLookupTraitBase::ReadKeyDataLength(const unsigned char*& d) { | |||
879 | using namespace llvm::support; | |||
880 | ||||
881 | unsigned DataLen = endian::readNext<uint16_t, little, unaligned>(d); | |||
882 | unsigned KeyLen = endian::readNext<uint16_t, little, unaligned>(d); | |||
883 | return std::make_pair(KeyLen, DataLen); | |||
884 | } | |||
885 | ||||
886 | ASTIdentifierLookupTraitBase::internal_key_type | |||
887 | ASTIdentifierLookupTraitBase::ReadKey(const unsigned char* d, unsigned n) { | |||
888 | assert(n >= 2 && d[n-1] == '\0')(static_cast <bool> (n >= 2 && d[n-1] == '\0' ) ? void (0) : __assert_fail ("n >= 2 && d[n-1] == '\\0'" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 888, __extension__ __PRETTY_FUNCTION__)); | |||
889 | return StringRef((const char*) d, n-1); | |||
890 | } | |||
891 | ||||
892 | /// \brief Whether the given identifier is "interesting". | |||
893 | static bool isInterestingIdentifier(ASTReader &Reader, IdentifierInfo &II, | |||
894 | bool IsModule) { | |||
895 | return II.hadMacroDefinition() || | |||
896 | II.isPoisoned() || | |||
897 | (IsModule ? II.hasRevertedBuiltin() : II.getObjCOrBuiltinID()) || | |||
898 | II.hasRevertedTokenIDToIdentifier() || | |||
899 | (!(IsModule && Reader.getPreprocessor().getLangOpts().CPlusPlus) && | |||
900 | II.getFETokenInfo<void>()); | |||
901 | } | |||
902 | ||||
903 | static bool readBit(unsigned &Bits) { | |||
904 | bool Value = Bits & 0x1; | |||
905 | Bits >>= 1; | |||
906 | return Value; | |||
907 | } | |||
908 | ||||
909 | IdentID ASTIdentifierLookupTrait::ReadIdentifierID(const unsigned char *d) { | |||
910 | using namespace llvm::support; | |||
911 | ||||
912 | unsigned RawID = endian::readNext<uint32_t, little, unaligned>(d); | |||
913 | return Reader.getGlobalIdentifierID(F, RawID >> 1); | |||
914 | } | |||
915 | ||||
916 | static void markIdentifierFromAST(ASTReader &Reader, IdentifierInfo &II) { | |||
917 | if (!II.isFromAST()) { | |||
918 | II.setIsFromAST(); | |||
919 | bool IsModule = Reader.getPreprocessor().getCurrentModule() != nullptr; | |||
920 | if (isInterestingIdentifier(Reader, II, IsModule)) | |||
921 | II.setChangedSinceDeserialization(); | |||
922 | } | |||
923 | } | |||
924 | ||||
925 | IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k, | |||
926 | const unsigned char* d, | |||
927 | unsigned DataLen) { | |||
928 | using namespace llvm::support; | |||
929 | ||||
930 | unsigned RawID = endian::readNext<uint32_t, little, unaligned>(d); | |||
931 | bool IsInteresting = RawID & 0x01; | |||
932 | ||||
933 | // Wipe out the "is interesting" bit. | |||
934 | RawID = RawID >> 1; | |||
935 | ||||
936 | // Build the IdentifierInfo and link the identifier ID with it. | |||
937 | IdentifierInfo *II = KnownII; | |||
938 | if (!II) { | |||
939 | II = &Reader.getIdentifierTable().getOwn(k); | |||
940 | KnownII = II; | |||
941 | } | |||
942 | markIdentifierFromAST(Reader, *II); | |||
943 | Reader.markIdentifierUpToDate(II); | |||
944 | ||||
945 | IdentID ID = Reader.getGlobalIdentifierID(F, RawID); | |||
946 | if (!IsInteresting) { | |||
947 | // For uninteresting identifiers, there's nothing else to do. Just notify | |||
948 | // the reader that we've finished loading this identifier. | |||
949 | Reader.SetIdentifierInfo(ID, II); | |||
950 | return II; | |||
951 | } | |||
952 | ||||
953 | unsigned ObjCOrBuiltinID = endian::readNext<uint16_t, little, unaligned>(d); | |||
954 | unsigned Bits = endian::readNext<uint16_t, little, unaligned>(d); | |||
955 | bool CPlusPlusOperatorKeyword = readBit(Bits); | |||
956 | bool HasRevertedTokenIDToIdentifier = readBit(Bits); | |||
957 | bool HasRevertedBuiltin = readBit(Bits); | |||
958 | bool Poisoned = readBit(Bits); | |||
959 | bool ExtensionToken = readBit(Bits); | |||
960 | bool HadMacroDefinition = readBit(Bits); | |||
961 | ||||
962 | assert(Bits == 0 && "Extra bits in the identifier?")(static_cast <bool> (Bits == 0 && "Extra bits in the identifier?" ) ? void (0) : __assert_fail ("Bits == 0 && \"Extra bits in the identifier?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 962, __extension__ __PRETTY_FUNCTION__)); | |||
963 | DataLen -= 8; | |||
964 | ||||
965 | // Set or check the various bits in the IdentifierInfo structure. | |||
966 | // Token IDs are read-only. | |||
967 | if (HasRevertedTokenIDToIdentifier && II->getTokenID() != tok::identifier) | |||
968 | II->revertTokenIDToIdentifier(); | |||
969 | if (!F.isModule()) | |||
970 | II->setObjCOrBuiltinID(ObjCOrBuiltinID); | |||
971 | else if (HasRevertedBuiltin && II->getBuiltinID()) { | |||
972 | II->revertBuiltin(); | |||
973 | assert((II->hasRevertedBuiltin() ||(static_cast <bool> ((II->hasRevertedBuiltin() || II ->getObjCOrBuiltinID() == ObjCOrBuiltinID) && "Incorrect ObjC keyword or builtin ID" ) ? void (0) : __assert_fail ("(II->hasRevertedBuiltin() || II->getObjCOrBuiltinID() == ObjCOrBuiltinID) && \"Incorrect ObjC keyword or builtin ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 975, __extension__ __PRETTY_FUNCTION__)) | |||
974 | II->getObjCOrBuiltinID() == ObjCOrBuiltinID) &&(static_cast <bool> ((II->hasRevertedBuiltin() || II ->getObjCOrBuiltinID() == ObjCOrBuiltinID) && "Incorrect ObjC keyword or builtin ID" ) ? void (0) : __assert_fail ("(II->hasRevertedBuiltin() || II->getObjCOrBuiltinID() == ObjCOrBuiltinID) && \"Incorrect ObjC keyword or builtin ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 975, __extension__ __PRETTY_FUNCTION__)) | |||
975 | "Incorrect ObjC keyword or builtin ID")(static_cast <bool> ((II->hasRevertedBuiltin() || II ->getObjCOrBuiltinID() == ObjCOrBuiltinID) && "Incorrect ObjC keyword or builtin ID" ) ? void (0) : __assert_fail ("(II->hasRevertedBuiltin() || II->getObjCOrBuiltinID() == ObjCOrBuiltinID) && \"Incorrect ObjC keyword or builtin ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 975, __extension__ __PRETTY_FUNCTION__)); | |||
976 | } | |||
977 | assert(II->isExtensionToken() == ExtensionToken &&(static_cast <bool> (II->isExtensionToken() == ExtensionToken && "Incorrect extension token flag") ? void (0) : __assert_fail ("II->isExtensionToken() == ExtensionToken && \"Incorrect extension token flag\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 978, __extension__ __PRETTY_FUNCTION__)) | |||
978 | "Incorrect extension token flag")(static_cast <bool> (II->isExtensionToken() == ExtensionToken && "Incorrect extension token flag") ? void (0) : __assert_fail ("II->isExtensionToken() == ExtensionToken && \"Incorrect extension token flag\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 978, __extension__ __PRETTY_FUNCTION__)); | |||
979 | (void)ExtensionToken; | |||
980 | if (Poisoned) | |||
981 | II->setIsPoisoned(true); | |||
982 | assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword &&(static_cast <bool> (II->isCPlusPlusOperatorKeyword( ) == CPlusPlusOperatorKeyword && "Incorrect C++ operator keyword flag" ) ? void (0) : __assert_fail ("II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword && \"Incorrect C++ operator keyword flag\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 983, __extension__ __PRETTY_FUNCTION__)) | |||
983 | "Incorrect C++ operator keyword flag")(static_cast <bool> (II->isCPlusPlusOperatorKeyword( ) == CPlusPlusOperatorKeyword && "Incorrect C++ operator keyword flag" ) ? void (0) : __assert_fail ("II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword && \"Incorrect C++ operator keyword flag\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 983, __extension__ __PRETTY_FUNCTION__)); | |||
984 | (void)CPlusPlusOperatorKeyword; | |||
985 | ||||
986 | // If this identifier is a macro, deserialize the macro | |||
987 | // definition. | |||
988 | if (HadMacroDefinition) { | |||
989 | uint32_t MacroDirectivesOffset = | |||
990 | endian::readNext<uint32_t, little, unaligned>(d); | |||
991 | DataLen -= 4; | |||
992 | ||||
993 | Reader.addPendingMacro(II, &F, MacroDirectivesOffset); | |||
994 | } | |||
995 | ||||
996 | Reader.SetIdentifierInfo(ID, II); | |||
997 | ||||
998 | // Read all of the declarations visible at global scope with this | |||
999 | // name. | |||
1000 | if (DataLen > 0) { | |||
1001 | SmallVector<uint32_t, 4> DeclIDs; | |||
1002 | for (; DataLen > 0; DataLen -= 4) | |||
1003 | DeclIDs.push_back(Reader.getGlobalDeclID( | |||
1004 | F, endian::readNext<uint32_t, little, unaligned>(d))); | |||
1005 | Reader.SetGloballyVisibleDecls(II, DeclIDs); | |||
1006 | } | |||
1007 | ||||
1008 | return II; | |||
1009 | } | |||
1010 | ||||
1011 | DeclarationNameKey::DeclarationNameKey(DeclarationName Name) | |||
1012 | : Kind(Name.getNameKind()) { | |||
1013 | switch (Kind) { | |||
1014 | case DeclarationName::Identifier: | |||
1015 | Data = (uint64_t)Name.getAsIdentifierInfo(); | |||
1016 | break; | |||
1017 | case DeclarationName::ObjCZeroArgSelector: | |||
1018 | case DeclarationName::ObjCOneArgSelector: | |||
1019 | case DeclarationName::ObjCMultiArgSelector: | |||
1020 | Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr(); | |||
1021 | break; | |||
1022 | case DeclarationName::CXXOperatorName: | |||
1023 | Data = Name.getCXXOverloadedOperator(); | |||
1024 | break; | |||
1025 | case DeclarationName::CXXLiteralOperatorName: | |||
1026 | Data = (uint64_t)Name.getCXXLiteralIdentifier(); | |||
1027 | break; | |||
1028 | case DeclarationName::CXXDeductionGuideName: | |||
1029 | Data = (uint64_t)Name.getCXXDeductionGuideTemplate() | |||
1030 | ->getDeclName().getAsIdentifierInfo(); | |||
1031 | break; | |||
1032 | case DeclarationName::CXXConstructorName: | |||
1033 | case DeclarationName::CXXDestructorName: | |||
1034 | case DeclarationName::CXXConversionFunctionName: | |||
1035 | case DeclarationName::CXXUsingDirective: | |||
1036 | Data = 0; | |||
1037 | break; | |||
1038 | } | |||
1039 | } | |||
1040 | ||||
1041 | unsigned DeclarationNameKey::getHash() const { | |||
1042 | llvm::FoldingSetNodeID ID; | |||
1043 | ID.AddInteger(Kind); | |||
1044 | ||||
1045 | switch (Kind) { | |||
1046 | case DeclarationName::Identifier: | |||
1047 | case DeclarationName::CXXLiteralOperatorName: | |||
1048 | case DeclarationName::CXXDeductionGuideName: | |||
1049 | ID.AddString(((IdentifierInfo*)Data)->getName()); | |||
| ||||
1050 | break; | |||
1051 | case DeclarationName::ObjCZeroArgSelector: | |||
1052 | case DeclarationName::ObjCOneArgSelector: | |||
1053 | case DeclarationName::ObjCMultiArgSelector: | |||
1054 | ID.AddInteger(serialization::ComputeHash(Selector(Data))); | |||
1055 | break; | |||
1056 | case DeclarationName::CXXOperatorName: | |||
1057 | ID.AddInteger((OverloadedOperatorKind)Data); | |||
1058 | break; | |||
1059 | case DeclarationName::CXXConstructorName: | |||
1060 | case DeclarationName::CXXDestructorName: | |||
1061 | case DeclarationName::CXXConversionFunctionName: | |||
1062 | case DeclarationName::CXXUsingDirective: | |||
1063 | break; | |||
1064 | } | |||
1065 | ||||
1066 | return ID.ComputeHash(); | |||
1067 | } | |||
1068 | ||||
1069 | ModuleFile * | |||
1070 | ASTDeclContextNameLookupTrait::ReadFileRef(const unsigned char *&d) { | |||
1071 | using namespace llvm::support; | |||
1072 | ||||
1073 | uint32_t ModuleFileID = endian::readNext<uint32_t, little, unaligned>(d); | |||
1074 | return Reader.getLocalModuleFile(F, ModuleFileID); | |||
1075 | } | |||
1076 | ||||
1077 | std::pair<unsigned, unsigned> | |||
1078 | ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char *&d) { | |||
1079 | using namespace llvm::support; | |||
1080 | ||||
1081 | unsigned KeyLen = endian::readNext<uint16_t, little, unaligned>(d); | |||
1082 | unsigned DataLen = endian::readNext<uint16_t, little, unaligned>(d); | |||
1083 | return std::make_pair(KeyLen, DataLen); | |||
1084 | } | |||
1085 | ||||
1086 | ASTDeclContextNameLookupTrait::internal_key_type | |||
1087 | ASTDeclContextNameLookupTrait::ReadKey(const unsigned char *d, unsigned) { | |||
1088 | using namespace llvm::support; | |||
1089 | ||||
1090 | auto Kind = (DeclarationName::NameKind)*d++; | |||
1091 | uint64_t Data; | |||
1092 | switch (Kind) { | |||
1093 | case DeclarationName::Identifier: | |||
1094 | case DeclarationName::CXXLiteralOperatorName: | |||
1095 | case DeclarationName::CXXDeductionGuideName: | |||
1096 | Data = (uint64_t)Reader.getLocalIdentifier( | |||
1097 | F, endian::readNext<uint32_t, little, unaligned>(d)); | |||
1098 | break; | |||
1099 | case DeclarationName::ObjCZeroArgSelector: | |||
1100 | case DeclarationName::ObjCOneArgSelector: | |||
1101 | case DeclarationName::ObjCMultiArgSelector: | |||
1102 | Data = | |||
1103 | (uint64_t)Reader.getLocalSelector( | |||
1104 | F, endian::readNext<uint32_t, little, unaligned>( | |||
1105 | d)).getAsOpaquePtr(); | |||
1106 | break; | |||
1107 | case DeclarationName::CXXOperatorName: | |||
1108 | Data = *d++; // OverloadedOperatorKind | |||
1109 | break; | |||
1110 | case DeclarationName::CXXConstructorName: | |||
1111 | case DeclarationName::CXXDestructorName: | |||
1112 | case DeclarationName::CXXConversionFunctionName: | |||
1113 | case DeclarationName::CXXUsingDirective: | |||
1114 | Data = 0; | |||
1115 | break; | |||
1116 | } | |||
1117 | ||||
1118 | return DeclarationNameKey(Kind, Data); | |||
1119 | } | |||
1120 | ||||
1121 | void ASTDeclContextNameLookupTrait::ReadDataInto(internal_key_type, | |||
1122 | const unsigned char *d, | |||
1123 | unsigned DataLen, | |||
1124 | data_type_builder &Val) { | |||
1125 | using namespace llvm::support; | |||
1126 | ||||
1127 | for (unsigned NumDecls = DataLen / 4; NumDecls; --NumDecls) { | |||
1128 | uint32_t LocalID = endian::readNext<uint32_t, little, unaligned>(d); | |||
1129 | Val.insert(Reader.getGlobalDeclID(F, LocalID)); | |||
1130 | } | |||
1131 | } | |||
1132 | ||||
1133 | bool ASTReader::ReadLexicalDeclContextStorage(ModuleFile &M, | |||
1134 | BitstreamCursor &Cursor, | |||
1135 | uint64_t Offset, | |||
1136 | DeclContext *DC) { | |||
1137 | assert(Offset != 0)(static_cast <bool> (Offset != 0) ? void (0) : __assert_fail ("Offset != 0", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1137, __extension__ __PRETTY_FUNCTION__)); | |||
1138 | ||||
1139 | SavedStreamPosition SavedPosition(Cursor); | |||
1140 | Cursor.JumpToBit(Offset); | |||
1141 | ||||
1142 | RecordData Record; | |||
1143 | StringRef Blob; | |||
1144 | unsigned Code = Cursor.ReadCode(); | |||
1145 | unsigned RecCode = Cursor.readRecord(Code, Record, &Blob); | |||
1146 | if (RecCode != DECL_CONTEXT_LEXICAL) { | |||
1147 | Error("Expected lexical block"); | |||
1148 | return true; | |||
1149 | } | |||
1150 | ||||
1151 | assert(!isa<TranslationUnitDecl>(DC) &&(static_cast <bool> (!isa<TranslationUnitDecl>(DC ) && "expected a TU_UPDATE_LEXICAL record for TU") ? void (0) : __assert_fail ("!isa<TranslationUnitDecl>(DC) && \"expected a TU_UPDATE_LEXICAL record for TU\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1152, __extension__ __PRETTY_FUNCTION__)) | |||
1152 | "expected a TU_UPDATE_LEXICAL record for TU")(static_cast <bool> (!isa<TranslationUnitDecl>(DC ) && "expected a TU_UPDATE_LEXICAL record for TU") ? void (0) : __assert_fail ("!isa<TranslationUnitDecl>(DC) && \"expected a TU_UPDATE_LEXICAL record for TU\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1152, __extension__ __PRETTY_FUNCTION__)); | |||
1153 | // If we are handling a C++ class template instantiation, we can see multiple | |||
1154 | // lexical updates for the same record. It's important that we select only one | |||
1155 | // of them, so that field numbering works properly. Just pick the first one we | |||
1156 | // see. | |||
1157 | auto &Lex = LexicalDecls[DC]; | |||
1158 | if (!Lex.first) { | |||
1159 | Lex = std::make_pair( | |||
1160 | &M, llvm::makeArrayRef( | |||
1161 | reinterpret_cast<const llvm::support::unaligned_uint32_t *>( | |||
1162 | Blob.data()), | |||
1163 | Blob.size() / 4)); | |||
1164 | } | |||
1165 | DC->setHasExternalLexicalStorage(true); | |||
1166 | return false; | |||
1167 | } | |||
1168 | ||||
1169 | bool ASTReader::ReadVisibleDeclContextStorage(ModuleFile &M, | |||
1170 | BitstreamCursor &Cursor, | |||
1171 | uint64_t Offset, | |||
1172 | DeclID ID) { | |||
1173 | assert(Offset != 0)(static_cast <bool> (Offset != 0) ? void (0) : __assert_fail ("Offset != 0", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1173, __extension__ __PRETTY_FUNCTION__)); | |||
1174 | ||||
1175 | SavedStreamPosition SavedPosition(Cursor); | |||
1176 | Cursor.JumpToBit(Offset); | |||
1177 | ||||
1178 | RecordData Record; | |||
1179 | StringRef Blob; | |||
1180 | unsigned Code = Cursor.ReadCode(); | |||
1181 | unsigned RecCode = Cursor.readRecord(Code, Record, &Blob); | |||
1182 | if (RecCode != DECL_CONTEXT_VISIBLE) { | |||
1183 | Error("Expected visible lookup table block"); | |||
1184 | return true; | |||
1185 | } | |||
1186 | ||||
1187 | // We can't safely determine the primary context yet, so delay attaching the | |||
1188 | // lookup table until we're done with recursive deserialization. | |||
1189 | auto *Data = (const unsigned char*)Blob.data(); | |||
1190 | PendingVisibleUpdates[ID].push_back(PendingVisibleUpdate{&M, Data}); | |||
1191 | return false; | |||
1192 | } | |||
1193 | ||||
1194 | void ASTReader::Error(StringRef Msg) const { | |||
1195 | Error(diag::err_fe_pch_malformed, Msg); | |||
1196 | if (PP.getLangOpts().Modules && !Diags.isDiagnosticInFlight() && | |||
1197 | !PP.getHeaderSearchInfo().getModuleCachePath().empty()) { | |||
1198 | Diag(diag::note_module_cache_path) | |||
1199 | << PP.getHeaderSearchInfo().getModuleCachePath(); | |||
1200 | } | |||
1201 | } | |||
1202 | ||||
1203 | void ASTReader::Error(unsigned DiagID, | |||
1204 | StringRef Arg1, StringRef Arg2) const { | |||
1205 | if (Diags.isDiagnosticInFlight()) | |||
1206 | Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2); | |||
1207 | else | |||
1208 | Diag(DiagID) << Arg1 << Arg2; | |||
1209 | } | |||
1210 | ||||
1211 | //===----------------------------------------------------------------------===// | |||
1212 | // Source Manager Deserialization | |||
1213 | //===----------------------------------------------------------------------===// | |||
1214 | ||||
1215 | /// \brief Read the line table in the source manager block. | |||
1216 | /// \returns true if there was an error. | |||
1217 | bool ASTReader::ParseLineTable(ModuleFile &F, | |||
1218 | const RecordData &Record) { | |||
1219 | unsigned Idx = 0; | |||
1220 | LineTableInfo &LineTable = SourceMgr.getLineTable(); | |||
1221 | ||||
1222 | // Parse the file names | |||
1223 | std::map<int, int> FileIDs; | |||
1224 | FileIDs[-1] = -1; // For unspecified filenames. | |||
1225 | for (unsigned I = 0; Record[Idx]; ++I) { | |||
1226 | // Extract the file name | |||
1227 | auto Filename = ReadPath(F, Record, Idx); | |||
1228 | FileIDs[I] = LineTable.getLineTableFilenameID(Filename); | |||
1229 | } | |||
1230 | ++Idx; | |||
1231 | ||||
1232 | // Parse the line entries | |||
1233 | std::vector<LineEntry> Entries; | |||
1234 | while (Idx < Record.size()) { | |||
1235 | int FID = Record[Idx++]; | |||
1236 | assert(FID >= 0 && "Serialized line entries for non-local file.")(static_cast <bool> (FID >= 0 && "Serialized line entries for non-local file." ) ? void (0) : __assert_fail ("FID >= 0 && \"Serialized line entries for non-local file.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1236, __extension__ __PRETTY_FUNCTION__)); | |||
1237 | // Remap FileID from 1-based old view. | |||
1238 | FID += F.SLocEntryBaseID - 1; | |||
1239 | ||||
1240 | // Extract the line entries | |||
1241 | unsigned NumEntries = Record[Idx++]; | |||
1242 | assert(NumEntries && "no line entries for file ID")(static_cast <bool> (NumEntries && "no line entries for file ID" ) ? void (0) : __assert_fail ("NumEntries && \"no line entries for file ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1242, __extension__ __PRETTY_FUNCTION__)); | |||
1243 | Entries.clear(); | |||
1244 | Entries.reserve(NumEntries); | |||
1245 | for (unsigned I = 0; I != NumEntries; ++I) { | |||
1246 | unsigned FileOffset = Record[Idx++]; | |||
1247 | unsigned LineNo = Record[Idx++]; | |||
1248 | int FilenameID = FileIDs[Record[Idx++]]; | |||
1249 | SrcMgr::CharacteristicKind FileKind | |||
1250 | = (SrcMgr::CharacteristicKind)Record[Idx++]; | |||
1251 | unsigned IncludeOffset = Record[Idx++]; | |||
1252 | Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID, | |||
1253 | FileKind, IncludeOffset)); | |||
1254 | } | |||
1255 | LineTable.AddEntry(FileID::get(FID), Entries); | |||
1256 | } | |||
1257 | ||||
1258 | return false; | |||
1259 | } | |||
1260 | ||||
1261 | /// \brief Read a source manager block | |||
1262 | bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) { | |||
1263 | using namespace SrcMgr; | |||
1264 | ||||
1265 | BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor; | |||
1266 | ||||
1267 | // Set the source-location entry cursor to the current position in | |||
1268 | // the stream. This cursor will be used to read the contents of the | |||
1269 | // source manager block initially, and then lazily read | |||
1270 | // source-location entries as needed. | |||
1271 | SLocEntryCursor = F.Stream; | |||
1272 | ||||
1273 | // The stream itself is going to skip over the source manager block. | |||
1274 | if (F.Stream.SkipBlock()) { | |||
1275 | Error("malformed block record in AST file"); | |||
1276 | return true; | |||
1277 | } | |||
1278 | ||||
1279 | // Enter the source manager block. | |||
1280 | if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) { | |||
1281 | Error("malformed source manager block record in AST file"); | |||
1282 | return true; | |||
1283 | } | |||
1284 | ||||
1285 | RecordData Record; | |||
1286 | while (true) { | |||
1287 | llvm::BitstreamEntry E = SLocEntryCursor.advanceSkippingSubblocks(); | |||
1288 | ||||
1289 | switch (E.Kind) { | |||
1290 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. | |||
1291 | case llvm::BitstreamEntry::Error: | |||
1292 | Error("malformed block record in AST file"); | |||
1293 | return true; | |||
1294 | case llvm::BitstreamEntry::EndBlock: | |||
1295 | return false; | |||
1296 | case llvm::BitstreamEntry::Record: | |||
1297 | // The interesting case. | |||
1298 | break; | |||
1299 | } | |||
1300 | ||||
1301 | // Read a record. | |||
1302 | Record.clear(); | |||
1303 | StringRef Blob; | |||
1304 | switch (SLocEntryCursor.readRecord(E.ID, Record, &Blob)) { | |||
1305 | default: // Default behavior: ignore. | |||
1306 | break; | |||
1307 | ||||
1308 | case SM_SLOC_FILE_ENTRY: | |||
1309 | case SM_SLOC_BUFFER_ENTRY: | |||
1310 | case SM_SLOC_EXPANSION_ENTRY: | |||
1311 | // Once we hit one of the source location entries, we're done. | |||
1312 | return false; | |||
1313 | } | |||
1314 | } | |||
1315 | } | |||
1316 | ||||
1317 | /// \brief If a header file is not found at the path that we expect it to be | |||
1318 | /// and the PCH file was moved from its original location, try to resolve the | |||
1319 | /// file by assuming that header+PCH were moved together and the header is in | |||
1320 | /// the same place relative to the PCH. | |||
1321 | static std::string | |||
1322 | resolveFileRelativeToOriginalDir(const std::string &Filename, | |||
1323 | const std::string &OriginalDir, | |||
1324 | const std::string &CurrDir) { | |||
1325 | assert(OriginalDir != CurrDir &&(static_cast <bool> (OriginalDir != CurrDir && "No point trying to resolve the file if the PCH dir didn't change" ) ? void (0) : __assert_fail ("OriginalDir != CurrDir && \"No point trying to resolve the file if the PCH dir didn't change\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1326, __extension__ __PRETTY_FUNCTION__)) | |||
1326 | "No point trying to resolve the file if the PCH dir didn't change")(static_cast <bool> (OriginalDir != CurrDir && "No point trying to resolve the file if the PCH dir didn't change" ) ? void (0) : __assert_fail ("OriginalDir != CurrDir && \"No point trying to resolve the file if the PCH dir didn't change\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1326, __extension__ __PRETTY_FUNCTION__)); | |||
1327 | ||||
1328 | using namespace llvm::sys; | |||
1329 | ||||
1330 | SmallString<128> filePath(Filename); | |||
1331 | fs::make_absolute(filePath); | |||
1332 | assert(path::is_absolute(OriginalDir))(static_cast <bool> (path::is_absolute(OriginalDir)) ? void (0) : __assert_fail ("path::is_absolute(OriginalDir)", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1332, __extension__ __PRETTY_FUNCTION__)); | |||
1333 | SmallString<128> currPCHPath(CurrDir); | |||
1334 | ||||
1335 | path::const_iterator fileDirI = path::begin(path::parent_path(filePath)), | |||
1336 | fileDirE = path::end(path::parent_path(filePath)); | |||
1337 | path::const_iterator origDirI = path::begin(OriginalDir), | |||
1338 | origDirE = path::end(OriginalDir); | |||
1339 | // Skip the common path components from filePath and OriginalDir. | |||
1340 | while (fileDirI != fileDirE && origDirI != origDirE && | |||
1341 | *fileDirI == *origDirI) { | |||
1342 | ++fileDirI; | |||
1343 | ++origDirI; | |||
1344 | } | |||
1345 | for (; origDirI != origDirE; ++origDirI) | |||
1346 | path::append(currPCHPath, ".."); | |||
1347 | path::append(currPCHPath, fileDirI, fileDirE); | |||
1348 | path::append(currPCHPath, path::filename(Filename)); | |||
1349 | return currPCHPath.str(); | |||
1350 | } | |||
1351 | ||||
1352 | bool ASTReader::ReadSLocEntry(int ID) { | |||
1353 | if (ID == 0) | |||
1354 | return false; | |||
1355 | ||||
1356 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { | |||
1357 | Error("source location entry ID out-of-range for AST file"); | |||
1358 | return true; | |||
1359 | } | |||
1360 | ||||
1361 | // Local helper to read the (possibly-compressed) buffer data following the | |||
1362 | // entry record. | |||
1363 | auto ReadBuffer = [this]( | |||
1364 | BitstreamCursor &SLocEntryCursor, | |||
1365 | StringRef Name) -> std::unique_ptr<llvm::MemoryBuffer> { | |||
1366 | RecordData Record; | |||
1367 | StringRef Blob; | |||
1368 | unsigned Code = SLocEntryCursor.ReadCode(); | |||
1369 | unsigned RecCode = SLocEntryCursor.readRecord(Code, Record, &Blob); | |||
1370 | ||||
1371 | if (RecCode == SM_SLOC_BUFFER_BLOB_COMPRESSED) { | |||
1372 | if (!llvm::zlib::isAvailable()) { | |||
1373 | Error("zlib is not available"); | |||
1374 | return nullptr; | |||
1375 | } | |||
1376 | SmallString<0> Uncompressed; | |||
1377 | if (llvm::Error E = | |||
1378 | llvm::zlib::uncompress(Blob, Uncompressed, Record[0])) { | |||
1379 | Error("could not decompress embedded file contents: " + | |||
1380 | llvm::toString(std::move(E))); | |||
1381 | return nullptr; | |||
1382 | } | |||
1383 | return llvm::MemoryBuffer::getMemBufferCopy(Uncompressed, Name); | |||
1384 | } else if (RecCode == SM_SLOC_BUFFER_BLOB) { | |||
1385 | return llvm::MemoryBuffer::getMemBuffer(Blob.drop_back(1), Name, true); | |||
1386 | } else { | |||
1387 | Error("AST record has invalid code"); | |||
1388 | return nullptr; | |||
1389 | } | |||
1390 | }; | |||
1391 | ||||
1392 | ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second; | |||
1393 | F->SLocEntryCursor.JumpToBit(F->SLocEntryOffsets[ID - F->SLocEntryBaseID]); | |||
1394 | BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor; | |||
1395 | unsigned BaseOffset = F->SLocEntryBaseOffset; | |||
1396 | ||||
1397 | ++NumSLocEntriesRead; | |||
1398 | llvm::BitstreamEntry Entry = SLocEntryCursor.advance(); | |||
1399 | if (Entry.Kind != llvm::BitstreamEntry::Record) { | |||
1400 | Error("incorrectly-formatted source location entry in AST file"); | |||
1401 | return true; | |||
1402 | } | |||
1403 | ||||
1404 | RecordData Record; | |||
1405 | StringRef Blob; | |||
1406 | switch (SLocEntryCursor.readRecord(Entry.ID, Record, &Blob)) { | |||
1407 | default: | |||
1408 | Error("incorrectly-formatted source location entry in AST file"); | |||
1409 | return true; | |||
1410 | ||||
1411 | case SM_SLOC_FILE_ENTRY: { | |||
1412 | // We will detect whether a file changed and return 'Failure' for it, but | |||
1413 | // we will also try to fail gracefully by setting up the SLocEntry. | |||
1414 | unsigned InputID = Record[4]; | |||
1415 | InputFile IF = getInputFile(*F, InputID); | |||
1416 | const FileEntry *File = IF.getFile(); | |||
1417 | bool OverriddenBuffer = IF.isOverridden(); | |||
1418 | ||||
1419 | // Note that we only check if a File was returned. If it was out-of-date | |||
1420 | // we have complained but we will continue creating a FileID to recover | |||
1421 | // gracefully. | |||
1422 | if (!File) | |||
1423 | return true; | |||
1424 | ||||
1425 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); | |||
1426 | if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) { | |||
1427 | // This is the module's main file. | |||
1428 | IncludeLoc = getImportLocation(F); | |||
1429 | } | |||
1430 | SrcMgr::CharacteristicKind | |||
1431 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; | |||
1432 | FileID FID = SourceMgr.createFileID(File, IncludeLoc, FileCharacter, | |||
1433 | ID, BaseOffset + Record[0]); | |||
1434 | SrcMgr::FileInfo &FileInfo = | |||
1435 | const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile()); | |||
1436 | FileInfo.NumCreatedFIDs = Record[5]; | |||
1437 | if (Record[3]) | |||
1438 | FileInfo.setHasLineDirectives(); | |||
1439 | ||||
1440 | const DeclID *FirstDecl = F->FileSortedDecls + Record[6]; | |||
1441 | unsigned NumFileDecls = Record[7]; | |||
1442 | if (NumFileDecls && ContextObj) { | |||
1443 | assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?")(static_cast <bool> (F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?" ) ? void (0) : __assert_fail ("F->FileSortedDecls && \"FILE_SORTED_DECLS not encountered yet ?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1443, __extension__ __PRETTY_FUNCTION__)); | |||
1444 | FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl, | |||
1445 | NumFileDecls)); | |||
1446 | } | |||
1447 | ||||
1448 | const SrcMgr::ContentCache *ContentCache | |||
1449 | = SourceMgr.getOrCreateContentCache(File, isSystem(FileCharacter)); | |||
1450 | if (OverriddenBuffer && !ContentCache->BufferOverridden && | |||
1451 | ContentCache->ContentsEntry == ContentCache->OrigEntry && | |||
1452 | !ContentCache->getRawBuffer()) { | |||
1453 | auto Buffer = ReadBuffer(SLocEntryCursor, File->getName()); | |||
1454 | if (!Buffer) | |||
1455 | return true; | |||
1456 | SourceMgr.overrideFileContents(File, std::move(Buffer)); | |||
1457 | } | |||
1458 | ||||
1459 | break; | |||
1460 | } | |||
1461 | ||||
1462 | case SM_SLOC_BUFFER_ENTRY: { | |||
1463 | const char *Name = Blob.data(); | |||
1464 | unsigned Offset = Record[0]; | |||
1465 | SrcMgr::CharacteristicKind | |||
1466 | FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; | |||
1467 | SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); | |||
1468 | if (IncludeLoc.isInvalid() && F->isModule()) { | |||
1469 | IncludeLoc = getImportLocation(F); | |||
1470 | } | |||
1471 | ||||
1472 | auto Buffer = ReadBuffer(SLocEntryCursor, Name); | |||
1473 | if (!Buffer) | |||
1474 | return true; | |||
1475 | SourceMgr.createFileID(std::move(Buffer), FileCharacter, ID, | |||
1476 | BaseOffset + Offset, IncludeLoc); | |||
1477 | break; | |||
1478 | } | |||
1479 | ||||
1480 | case SM_SLOC_EXPANSION_ENTRY: { | |||
1481 | SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]); | |||
1482 | SourceMgr.createExpansionLoc(SpellingLoc, | |||
1483 | ReadSourceLocation(*F, Record[2]), | |||
1484 | ReadSourceLocation(*F, Record[3]), | |||
1485 | Record[4], | |||
1486 | ID, | |||
1487 | BaseOffset + Record[0]); | |||
1488 | break; | |||
1489 | } | |||
1490 | } | |||
1491 | ||||
1492 | return false; | |||
1493 | } | |||
1494 | ||||
1495 | std::pair<SourceLocation, StringRef> ASTReader::getModuleImportLoc(int ID) { | |||
1496 | if (ID == 0) | |||
1497 | return std::make_pair(SourceLocation(), ""); | |||
1498 | ||||
1499 | if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { | |||
1500 | Error("source location entry ID out-of-range for AST file"); | |||
1501 | return std::make_pair(SourceLocation(), ""); | |||
1502 | } | |||
1503 | ||||
1504 | // Find which module file this entry lands in. | |||
1505 | ModuleFile *M = GlobalSLocEntryMap.find(-ID)->second; | |||
1506 | if (!M->isModule()) | |||
1507 | return std::make_pair(SourceLocation(), ""); | |||
1508 | ||||
1509 | // FIXME: Can we map this down to a particular submodule? That would be | |||
1510 | // ideal. | |||
1511 | return std::make_pair(M->ImportLoc, StringRef(M->ModuleName)); | |||
1512 | } | |||
1513 | ||||
1514 | /// \brief Find the location where the module F is imported. | |||
1515 | SourceLocation ASTReader::getImportLocation(ModuleFile *F) { | |||
1516 | if (F->ImportLoc.isValid()) | |||
1517 | return F->ImportLoc; | |||
1518 | ||||
1519 | // Otherwise we have a PCH. It's considered to be "imported" at the first | |||
1520 | // location of its includer. | |||
1521 | if (F->ImportedBy.empty() || !F->ImportedBy[0]) { | |||
1522 | // Main file is the importer. | |||
1523 | assert(SourceMgr.getMainFileID().isValid() && "missing main file")(static_cast <bool> (SourceMgr.getMainFileID().isValid( ) && "missing main file") ? void (0) : __assert_fail ( "SourceMgr.getMainFileID().isValid() && \"missing main file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1523, __extension__ __PRETTY_FUNCTION__)); | |||
1524 | return SourceMgr.getLocForStartOfFile(SourceMgr.getMainFileID()); | |||
1525 | } | |||
1526 | return F->ImportedBy[0]->FirstLoc; | |||
1527 | } | |||
1528 | ||||
1529 | /// ReadBlockAbbrevs - Enter a subblock of the specified BlockID with the | |||
1530 | /// specified cursor. Read the abbreviations that are at the top of the block | |||
1531 | /// and then leave the cursor pointing into the block. | |||
1532 | bool ASTReader::ReadBlockAbbrevs(BitstreamCursor &Cursor, unsigned BlockID) { | |||
1533 | if (Cursor.EnterSubBlock(BlockID)) | |||
1534 | return true; | |||
1535 | ||||
1536 | while (true) { | |||
1537 | uint64_t Offset = Cursor.GetCurrentBitNo(); | |||
1538 | unsigned Code = Cursor.ReadCode(); | |||
1539 | ||||
1540 | // We expect all abbrevs to be at the start of the block. | |||
1541 | if (Code != llvm::bitc::DEFINE_ABBREV) { | |||
1542 | Cursor.JumpToBit(Offset); | |||
1543 | return false; | |||
1544 | } | |||
1545 | Cursor.ReadAbbrevRecord(); | |||
1546 | } | |||
1547 | } | |||
1548 | ||||
1549 | Token ASTReader::ReadToken(ModuleFile &F, const RecordDataImpl &Record, | |||
1550 | unsigned &Idx) { | |||
1551 | Token Tok; | |||
1552 | Tok.startToken(); | |||
1553 | Tok.setLocation(ReadSourceLocation(F, Record, Idx)); | |||
1554 | Tok.setLength(Record[Idx++]); | |||
1555 | if (IdentifierInfo *II = getLocalIdentifier(F, Record[Idx++])) | |||
1556 | Tok.setIdentifierInfo(II); | |||
1557 | Tok.setKind((tok::TokenKind)Record[Idx++]); | |||
1558 | Tok.setFlag((Token::TokenFlags)Record[Idx++]); | |||
1559 | return Tok; | |||
1560 | } | |||
1561 | ||||
1562 | MacroInfo *ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) { | |||
1563 | BitstreamCursor &Stream = F.MacroCursor; | |||
1564 | ||||
1565 | // Keep track of where we are in the stream, then jump back there | |||
1566 | // after reading this macro. | |||
1567 | SavedStreamPosition SavedPosition(Stream); | |||
1568 | ||||
1569 | Stream.JumpToBit(Offset); | |||
1570 | RecordData Record; | |||
1571 | SmallVector<IdentifierInfo*, 16> MacroParams; | |||
1572 | MacroInfo *Macro = nullptr; | |||
1573 | ||||
1574 | while (true) { | |||
1575 | // Advance to the next record, but if we get to the end of the block, don't | |||
1576 | // pop it (removing all the abbreviations from the cursor) since we want to | |||
1577 | // be able to reseek within the block and read entries. | |||
1578 | unsigned Flags = BitstreamCursor::AF_DontPopBlockAtEnd; | |||
1579 | llvm::BitstreamEntry Entry = Stream.advanceSkippingSubblocks(Flags); | |||
1580 | ||||
1581 | switch (Entry.Kind) { | |||
1582 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. | |||
1583 | case llvm::BitstreamEntry::Error: | |||
1584 | Error("malformed block record in AST file"); | |||
1585 | return Macro; | |||
1586 | case llvm::BitstreamEntry::EndBlock: | |||
1587 | return Macro; | |||
1588 | case llvm::BitstreamEntry::Record: | |||
1589 | // The interesting case. | |||
1590 | break; | |||
1591 | } | |||
1592 | ||||
1593 | // Read a record. | |||
1594 | Record.clear(); | |||
1595 | PreprocessorRecordTypes RecType = | |||
1596 | (PreprocessorRecordTypes)Stream.readRecord(Entry.ID, Record); | |||
1597 | switch (RecType) { | |||
1598 | case PP_MODULE_MACRO: | |||
1599 | case PP_MACRO_DIRECTIVE_HISTORY: | |||
1600 | return Macro; | |||
1601 | ||||
1602 | case PP_MACRO_OBJECT_LIKE: | |||
1603 | case PP_MACRO_FUNCTION_LIKE: { | |||
1604 | // If we already have a macro, that means that we've hit the end | |||
1605 | // of the definition of the macro we were looking for. We're | |||
1606 | // done. | |||
1607 | if (Macro) | |||
1608 | return Macro; | |||
1609 | ||||
1610 | unsigned NextIndex = 1; // Skip identifier ID. | |||
1611 | SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex); | |||
1612 | MacroInfo *MI = PP.AllocateMacroInfo(Loc); | |||
1613 | MI->setDefinitionEndLoc(ReadSourceLocation(F, Record, NextIndex)); | |||
1614 | MI->setIsUsed(Record[NextIndex++]); | |||
1615 | MI->setUsedForHeaderGuard(Record[NextIndex++]); | |||
1616 | ||||
1617 | if (RecType == PP_MACRO_FUNCTION_LIKE) { | |||
1618 | // Decode function-like macro info. | |||
1619 | bool isC99VarArgs = Record[NextIndex++]; | |||
1620 | bool isGNUVarArgs = Record[NextIndex++]; | |||
1621 | bool hasCommaPasting = Record[NextIndex++]; | |||
1622 | MacroParams.clear(); | |||
1623 | unsigned NumArgs = Record[NextIndex++]; | |||
1624 | for (unsigned i = 0; i != NumArgs; ++i) | |||
1625 | MacroParams.push_back(getLocalIdentifier(F, Record[NextIndex++])); | |||
1626 | ||||
1627 | // Install function-like macro info. | |||
1628 | MI->setIsFunctionLike(); | |||
1629 | if (isC99VarArgs) MI->setIsC99Varargs(); | |||
1630 | if (isGNUVarArgs) MI->setIsGNUVarargs(); | |||
1631 | if (hasCommaPasting) MI->setHasCommaPasting(); | |||
1632 | MI->setParameterList(MacroParams, PP.getPreprocessorAllocator()); | |||
1633 | } | |||
1634 | ||||
1635 | // Remember that we saw this macro last so that we add the tokens that | |||
1636 | // form its body to it. | |||
1637 | Macro = MI; | |||
1638 | ||||
1639 | if (NextIndex + 1 == Record.size() && PP.getPreprocessingRecord() && | |||
1640 | Record[NextIndex]) { | |||
1641 | // We have a macro definition. Register the association | |||
1642 | PreprocessedEntityID | |||
1643 | GlobalID = getGlobalPreprocessedEntityID(F, Record[NextIndex]); | |||
1644 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); | |||
1645 | PreprocessingRecord::PPEntityID PPID = | |||
1646 | PPRec.getPPEntityID(GlobalID - 1, /*isLoaded=*/true); | |||
1647 | MacroDefinitionRecord *PPDef = cast_or_null<MacroDefinitionRecord>( | |||
1648 | PPRec.getPreprocessedEntity(PPID)); | |||
1649 | if (PPDef) | |||
1650 | PPRec.RegisterMacroDefinition(Macro, PPDef); | |||
1651 | } | |||
1652 | ||||
1653 | ++NumMacrosRead; | |||
1654 | break; | |||
1655 | } | |||
1656 | ||||
1657 | case PP_TOKEN: { | |||
1658 | // If we see a TOKEN before a PP_MACRO_*, then the file is | |||
1659 | // erroneous, just pretend we didn't see this. | |||
1660 | if (!Macro) break; | |||
1661 | ||||
1662 | unsigned Idx = 0; | |||
1663 | Token Tok = ReadToken(F, Record, Idx); | |||
1664 | Macro->AddTokenToBody(Tok); | |||
1665 | break; | |||
1666 | } | |||
1667 | } | |||
1668 | } | |||
1669 | } | |||
1670 | ||||
1671 | PreprocessedEntityID | |||
1672 | ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M, | |||
1673 | unsigned LocalID) const { | |||
1674 | if (!M.ModuleOffsetMap.empty()) | |||
1675 | ReadModuleOffsetMap(M); | |||
1676 | ||||
1677 | ContinuousRangeMap<uint32_t, int, 2>::const_iterator | |||
1678 | I = M.PreprocessedEntityRemap.find(LocalID - NUM_PREDEF_PP_ENTITY_IDS); | |||
1679 | assert(I != M.PreprocessedEntityRemap.end()(static_cast <bool> (I != M.PreprocessedEntityRemap.end () && "Invalid index into preprocessed entity index remap" ) ? void (0) : __assert_fail ("I != M.PreprocessedEntityRemap.end() && \"Invalid index into preprocessed entity index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1680, __extension__ __PRETTY_FUNCTION__)) | |||
1680 | && "Invalid index into preprocessed entity index remap")(static_cast <bool> (I != M.PreprocessedEntityRemap.end () && "Invalid index into preprocessed entity index remap" ) ? void (0) : __assert_fail ("I != M.PreprocessedEntityRemap.end() && \"Invalid index into preprocessed entity index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1680, __extension__ __PRETTY_FUNCTION__)); | |||
1681 | ||||
1682 | return LocalID + I->second; | |||
1683 | } | |||
1684 | ||||
1685 | unsigned HeaderFileInfoTrait::ComputeHash(internal_key_ref ikey) { | |||
1686 | return llvm::hash_combine(ikey.Size, ikey.ModTime); | |||
1687 | } | |||
1688 | ||||
1689 | HeaderFileInfoTrait::internal_key_type | |||
1690 | HeaderFileInfoTrait::GetInternalKey(const FileEntry *FE) { | |||
1691 | internal_key_type ikey = {FE->getSize(), | |||
1692 | M.HasTimestamps ? FE->getModificationTime() : 0, | |||
1693 | FE->getName(), /*Imported*/ false}; | |||
1694 | return ikey; | |||
1695 | } | |||
1696 | ||||
1697 | bool HeaderFileInfoTrait::EqualKey(internal_key_ref a, internal_key_ref b) { | |||
1698 | if (a.Size != b.Size || (a.ModTime && b.ModTime && a.ModTime != b.ModTime)) | |||
1699 | return false; | |||
1700 | ||||
1701 | if (llvm::sys::path::is_absolute(a.Filename) && a.Filename == b.Filename) | |||
1702 | return true; | |||
1703 | ||||
1704 | // Determine whether the actual files are equivalent. | |||
1705 | FileManager &FileMgr = Reader.getFileManager(); | |||
1706 | auto GetFile = [&](const internal_key_type &Key) -> const FileEntry* { | |||
1707 | if (!Key.Imported) | |||
1708 | return FileMgr.getFile(Key.Filename); | |||
1709 | ||||
1710 | std::string Resolved = Key.Filename; | |||
1711 | Reader.ResolveImportedPath(M, Resolved); | |||
1712 | return FileMgr.getFile(Resolved); | |||
1713 | }; | |||
1714 | ||||
1715 | const FileEntry *FEA = GetFile(a); | |||
1716 | const FileEntry *FEB = GetFile(b); | |||
1717 | return FEA && FEA == FEB; | |||
1718 | } | |||
1719 | ||||
1720 | std::pair<unsigned, unsigned> | |||
1721 | HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) { | |||
1722 | using namespace llvm::support; | |||
1723 | ||||
1724 | unsigned KeyLen = (unsigned) endian::readNext<uint16_t, little, unaligned>(d); | |||
1725 | unsigned DataLen = (unsigned) *d++; | |||
1726 | return std::make_pair(KeyLen, DataLen); | |||
1727 | } | |||
1728 | ||||
1729 | HeaderFileInfoTrait::internal_key_type | |||
1730 | HeaderFileInfoTrait::ReadKey(const unsigned char *d, unsigned) { | |||
1731 | using namespace llvm::support; | |||
1732 | ||||
1733 | internal_key_type ikey; | |||
1734 | ikey.Size = off_t(endian::readNext<uint64_t, little, unaligned>(d)); | |||
1735 | ikey.ModTime = time_t(endian::readNext<uint64_t, little, unaligned>(d)); | |||
1736 | ikey.Filename = (const char *)d; | |||
1737 | ikey.Imported = true; | |||
1738 | return ikey; | |||
1739 | } | |||
1740 | ||||
1741 | HeaderFileInfoTrait::data_type | |||
1742 | HeaderFileInfoTrait::ReadData(internal_key_ref key, const unsigned char *d, | |||
1743 | unsigned DataLen) { | |||
1744 | using namespace llvm::support; | |||
1745 | ||||
1746 | const unsigned char *End = d + DataLen; | |||
1747 | HeaderFileInfo HFI; | |||
1748 | unsigned Flags = *d++; | |||
1749 | // FIXME: Refactor with mergeHeaderFileInfo in HeaderSearch.cpp. | |||
1750 | HFI.isImport |= (Flags >> 5) & 0x01; | |||
1751 | HFI.isPragmaOnce |= (Flags >> 4) & 0x01; | |||
1752 | HFI.DirInfo = (Flags >> 1) & 0x07; | |||
1753 | HFI.IndexHeaderMapHeader = Flags & 0x01; | |||
1754 | // FIXME: Find a better way to handle this. Maybe just store a | |||
1755 | // "has been included" flag? | |||
1756 | HFI.NumIncludes = std::max(endian::readNext<uint16_t, little, unaligned>(d), | |||
1757 | HFI.NumIncludes); | |||
1758 | HFI.ControllingMacroID = Reader.getGlobalIdentifierID( | |||
1759 | M, endian::readNext<uint32_t, little, unaligned>(d)); | |||
1760 | if (unsigned FrameworkOffset = | |||
1761 | endian::readNext<uint32_t, little, unaligned>(d)) { | |||
1762 | // The framework offset is 1 greater than the actual offset, | |||
1763 | // since 0 is used as an indicator for "no framework name". | |||
1764 | StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1); | |||
1765 | HFI.Framework = HS->getUniqueFrameworkName(FrameworkName); | |||
1766 | } | |||
1767 | ||||
1768 | assert((End - d) % 4 == 0 &&(static_cast <bool> ((End - d) % 4 == 0 && "Wrong data length in HeaderFileInfo deserialization" ) ? void (0) : __assert_fail ("(End - d) % 4 == 0 && \"Wrong data length in HeaderFileInfo deserialization\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1769, __extension__ __PRETTY_FUNCTION__)) | |||
1769 | "Wrong data length in HeaderFileInfo deserialization")(static_cast <bool> ((End - d) % 4 == 0 && "Wrong data length in HeaderFileInfo deserialization" ) ? void (0) : __assert_fail ("(End - d) % 4 == 0 && \"Wrong data length in HeaderFileInfo deserialization\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1769, __extension__ __PRETTY_FUNCTION__)); | |||
1770 | while (d != End) { | |||
1771 | uint32_t LocalSMID = endian::readNext<uint32_t, little, unaligned>(d); | |||
1772 | auto HeaderRole = static_cast<ModuleMap::ModuleHeaderRole>(LocalSMID & 3); | |||
1773 | LocalSMID >>= 2; | |||
1774 | ||||
1775 | // This header is part of a module. Associate it with the module to enable | |||
1776 | // implicit module import. | |||
1777 | SubmoduleID GlobalSMID = Reader.getGlobalSubmoduleID(M, LocalSMID); | |||
1778 | Module *Mod = Reader.getSubmodule(GlobalSMID); | |||
1779 | FileManager &FileMgr = Reader.getFileManager(); | |||
1780 | ModuleMap &ModMap = | |||
1781 | Reader.getPreprocessor().getHeaderSearchInfo().getModuleMap(); | |||
1782 | ||||
1783 | std::string Filename = key.Filename; | |||
1784 | if (key.Imported) | |||
1785 | Reader.ResolveImportedPath(M, Filename); | |||
1786 | // FIXME: This is not always the right filename-as-written, but we're not | |||
1787 | // going to use this information to rebuild the module, so it doesn't make | |||
1788 | // a lot of difference. | |||
1789 | Module::Header H = { key.Filename, FileMgr.getFile(Filename) }; | |||
1790 | ModMap.addHeader(Mod, H, HeaderRole, /*Imported*/true); | |||
1791 | HFI.isModuleHeader |= !(HeaderRole & ModuleMap::TextualHeader); | |||
1792 | } | |||
1793 | ||||
1794 | // This HeaderFileInfo was externally loaded. | |||
1795 | HFI.External = true; | |||
1796 | HFI.IsValid = true; | |||
1797 | return HFI; | |||
1798 | } | |||
1799 | ||||
1800 | void ASTReader::addPendingMacro(IdentifierInfo *II, | |||
1801 | ModuleFile *M, | |||
1802 | uint64_t MacroDirectivesOffset) { | |||
1803 | assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard")(static_cast <bool> (NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard") ? void (0) : __assert_fail ("NumCurrentElementsDeserializing > 0 &&\"Missing deserialization guard\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 1803, __extension__ __PRETTY_FUNCTION__)); | |||
1804 | PendingMacroIDs[II].push_back(PendingMacroInfo(M, MacroDirectivesOffset)); | |||
1805 | } | |||
1806 | ||||
1807 | void ASTReader::ReadDefinedMacros() { | |||
1808 | // Note that we are loading defined macros. | |||
1809 | Deserializing Macros(this); | |||
1810 | ||||
1811 | for (ModuleFile &I : llvm::reverse(ModuleMgr)) { | |||
1812 | BitstreamCursor &MacroCursor = I.MacroCursor; | |||
1813 | ||||
1814 | // If there was no preprocessor block, skip this file. | |||
1815 | if (MacroCursor.getBitcodeBytes().empty()) | |||
1816 | continue; | |||
1817 | ||||
1818 | BitstreamCursor Cursor = MacroCursor; | |||
1819 | Cursor.JumpToBit(I.MacroStartOffset); | |||
1820 | ||||
1821 | RecordData Record; | |||
1822 | while (true) { | |||
1823 | llvm::BitstreamEntry E = Cursor.advanceSkippingSubblocks(); | |||
1824 | ||||
1825 | switch (E.Kind) { | |||
1826 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. | |||
1827 | case llvm::BitstreamEntry::Error: | |||
1828 | Error("malformed block record in AST file"); | |||
1829 | return; | |||
1830 | case llvm::BitstreamEntry::EndBlock: | |||
1831 | goto NextCursor; | |||
1832 | ||||
1833 | case llvm::BitstreamEntry::Record: | |||
1834 | Record.clear(); | |||
1835 | switch (Cursor.readRecord(E.ID, Record)) { | |||
1836 | default: // Default behavior: ignore. | |||
1837 | break; | |||
1838 | ||||
1839 | case PP_MACRO_OBJECT_LIKE: | |||
1840 | case PP_MACRO_FUNCTION_LIKE: { | |||
1841 | IdentifierInfo *II = getLocalIdentifier(I, Record[0]); | |||
1842 | if (II->isOutOfDate()) | |||
1843 | updateOutOfDateIdentifier(*II); | |||
1844 | break; | |||
1845 | } | |||
1846 | ||||
1847 | case PP_TOKEN: | |||
1848 | // Ignore tokens. | |||
1849 | break; | |||
1850 | } | |||
1851 | break; | |||
1852 | } | |||
1853 | } | |||
1854 | NextCursor: ; | |||
1855 | } | |||
1856 | } | |||
1857 | ||||
1858 | namespace { | |||
1859 | ||||
1860 | /// \brief Visitor class used to look up identifirs in an AST file. | |||
1861 | class IdentifierLookupVisitor { | |||
1862 | StringRef Name; | |||
1863 | unsigned NameHash; | |||
1864 | unsigned PriorGeneration; | |||
1865 | unsigned &NumIdentifierLookups; | |||
1866 | unsigned &NumIdentifierLookupHits; | |||
1867 | IdentifierInfo *Found = nullptr; | |||
1868 | ||||
1869 | public: | |||
1870 | IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration, | |||
1871 | unsigned &NumIdentifierLookups, | |||
1872 | unsigned &NumIdentifierLookupHits) | |||
1873 | : Name(Name), NameHash(ASTIdentifierLookupTrait::ComputeHash(Name)), | |||
1874 | PriorGeneration(PriorGeneration), | |||
1875 | NumIdentifierLookups(NumIdentifierLookups), | |||
1876 | NumIdentifierLookupHits(NumIdentifierLookupHits) {} | |||
1877 | ||||
1878 | bool operator()(ModuleFile &M) { | |||
1879 | // If we've already searched this module file, skip it now. | |||
1880 | if (M.Generation <= PriorGeneration) | |||
1881 | return true; | |||
1882 | ||||
1883 | ASTIdentifierLookupTable *IdTable | |||
1884 | = (ASTIdentifierLookupTable *)M.IdentifierLookupTable; | |||
1885 | if (!IdTable) | |||
1886 | return false; | |||
1887 | ||||
1888 | ASTIdentifierLookupTrait Trait(IdTable->getInfoObj().getReader(), M, | |||
1889 | Found); | |||
1890 | ++NumIdentifierLookups; | |||
1891 | ASTIdentifierLookupTable::iterator Pos = | |||
1892 | IdTable->find_hashed(Name, NameHash, &Trait); | |||
1893 | if (Pos == IdTable->end()) | |||
1894 | return false; | |||
1895 | ||||
1896 | // Dereferencing the iterator has the effect of building the | |||
1897 | // IdentifierInfo node and populating it with the various | |||
1898 | // declarations it needs. | |||
1899 | ++NumIdentifierLookupHits; | |||
1900 | Found = *Pos; | |||
1901 | return true; | |||
1902 | } | |||
1903 | ||||
1904 | // \brief Retrieve the identifier info found within the module | |||
1905 | // files. | |||
1906 | IdentifierInfo *getIdentifierInfo() const { return Found; } | |||
1907 | }; | |||
1908 | ||||
1909 | } // namespace | |||
1910 | ||||
1911 | void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) { | |||
1912 | // Note that we are loading an identifier. | |||
1913 | Deserializing AnIdentifier(this); | |||
1914 | ||||
1915 | unsigned PriorGeneration = 0; | |||
1916 | if (getContext().getLangOpts().Modules) | |||
1917 | PriorGeneration = IdentifierGeneration[&II]; | |||
1918 | ||||
1919 | // If there is a global index, look there first to determine which modules | |||
1920 | // provably do not have any results for this identifier. | |||
1921 | GlobalModuleIndex::HitSet Hits; | |||
1922 | GlobalModuleIndex::HitSet *HitsPtr = nullptr; | |||
1923 | if (!loadGlobalIndex()) { | |||
1924 | if (GlobalIndex->lookupIdentifier(II.getName(), Hits)) { | |||
1925 | HitsPtr = &Hits; | |||
1926 | } | |||
1927 | } | |||
1928 | ||||
1929 | IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration, | |||
1930 | NumIdentifierLookups, | |||
1931 | NumIdentifierLookupHits); | |||
1932 | ModuleMgr.visit(Visitor, HitsPtr); | |||
1933 | markIdentifierUpToDate(&II); | |||
1934 | } | |||
1935 | ||||
1936 | void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) { | |||
1937 | if (!II) | |||
1938 | return; | |||
1939 | ||||
1940 | II->setOutOfDate(false); | |||
1941 | ||||
1942 | // Update the generation for this identifier. | |||
1943 | if (getContext().getLangOpts().Modules) | |||
1944 | IdentifierGeneration[II] = getGeneration(); | |||
1945 | } | |||
1946 | ||||
1947 | void ASTReader::resolvePendingMacro(IdentifierInfo *II, | |||
1948 | const PendingMacroInfo &PMInfo) { | |||
1949 | ModuleFile &M = *PMInfo.M; | |||
1950 | ||||
1951 | BitstreamCursor &Cursor = M.MacroCursor; | |||
1952 | SavedStreamPosition SavedPosition(Cursor); | |||
1953 | Cursor.JumpToBit(PMInfo.MacroDirectivesOffset); | |||
1954 | ||||
1955 | struct ModuleMacroRecord { | |||
1956 | SubmoduleID SubModID; | |||
1957 | MacroInfo *MI; | |||
1958 | SmallVector<SubmoduleID, 8> Overrides; | |||
1959 | }; | |||
1960 | llvm::SmallVector<ModuleMacroRecord, 8> ModuleMacros; | |||
1961 | ||||
1962 | // We expect to see a sequence of PP_MODULE_MACRO records listing exported | |||
1963 | // macros, followed by a PP_MACRO_DIRECTIVE_HISTORY record with the complete | |||
1964 | // macro histroy. | |||
1965 | RecordData Record; | |||
1966 | while (true) { | |||
1967 | llvm::BitstreamEntry Entry = | |||
1968 | Cursor.advance(BitstreamCursor::AF_DontPopBlockAtEnd); | |||
1969 | if (Entry.Kind != llvm::BitstreamEntry::Record) { | |||
1970 | Error("malformed block record in AST file"); | |||
1971 | return; | |||
1972 | } | |||
1973 | ||||
1974 | Record.clear(); | |||
1975 | switch ((PreprocessorRecordTypes)Cursor.readRecord(Entry.ID, Record)) { | |||
1976 | case PP_MACRO_DIRECTIVE_HISTORY: | |||
1977 | break; | |||
1978 | ||||
1979 | case PP_MODULE_MACRO: { | |||
1980 | ModuleMacros.push_back(ModuleMacroRecord()); | |||
1981 | auto &Info = ModuleMacros.back(); | |||
1982 | Info.SubModID = getGlobalSubmoduleID(M, Record[0]); | |||
1983 | Info.MI = getMacro(getGlobalMacroID(M, Record[1])); | |||
1984 | for (int I = 2, N = Record.size(); I != N; ++I) | |||
1985 | Info.Overrides.push_back(getGlobalSubmoduleID(M, Record[I])); | |||
1986 | continue; | |||
1987 | } | |||
1988 | ||||
1989 | default: | |||
1990 | Error("malformed block record in AST file"); | |||
1991 | return; | |||
1992 | } | |||
1993 | ||||
1994 | // We found the macro directive history; that's the last record | |||
1995 | // for this macro. | |||
1996 | break; | |||
1997 | } | |||
1998 | ||||
1999 | // Module macros are listed in reverse dependency order. | |||
2000 | { | |||
2001 | std::reverse(ModuleMacros.begin(), ModuleMacros.end()); | |||
2002 | llvm::SmallVector<ModuleMacro*, 8> Overrides; | |||
2003 | for (auto &MMR : ModuleMacros) { | |||
2004 | Overrides.clear(); | |||
2005 | for (unsigned ModID : MMR.Overrides) { | |||
2006 | Module *Mod = getSubmodule(ModID); | |||
2007 | auto *Macro = PP.getModuleMacro(Mod, II); | |||
2008 | assert(Macro && "missing definition for overridden macro")(static_cast <bool> (Macro && "missing definition for overridden macro" ) ? void (0) : __assert_fail ("Macro && \"missing definition for overridden macro\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2008, __extension__ __PRETTY_FUNCTION__)); | |||
2009 | Overrides.push_back(Macro); | |||
2010 | } | |||
2011 | ||||
2012 | bool Inserted = false; | |||
2013 | Module *Owner = getSubmodule(MMR.SubModID); | |||
2014 | PP.addModuleMacro(Owner, II, MMR.MI, Overrides, Inserted); | |||
2015 | } | |||
2016 | } | |||
2017 | ||||
2018 | // Don't read the directive history for a module; we don't have anywhere | |||
2019 | // to put it. | |||
2020 | if (M.isModule()) | |||
2021 | return; | |||
2022 | ||||
2023 | // Deserialize the macro directives history in reverse source-order. | |||
2024 | MacroDirective *Latest = nullptr, *Earliest = nullptr; | |||
2025 | unsigned Idx = 0, N = Record.size(); | |||
2026 | while (Idx < N) { | |||
2027 | MacroDirective *MD = nullptr; | |||
2028 | SourceLocation Loc = ReadSourceLocation(M, Record, Idx); | |||
2029 | MacroDirective::Kind K = (MacroDirective::Kind)Record[Idx++]; | |||
2030 | switch (K) { | |||
2031 | case MacroDirective::MD_Define: { | |||
2032 | MacroInfo *MI = getMacro(getGlobalMacroID(M, Record[Idx++])); | |||
2033 | MD = PP.AllocateDefMacroDirective(MI, Loc); | |||
2034 | break; | |||
2035 | } | |||
2036 | case MacroDirective::MD_Undefine: | |||
2037 | MD = PP.AllocateUndefMacroDirective(Loc); | |||
2038 | break; | |||
2039 | case MacroDirective::MD_Visibility: | |||
2040 | bool isPublic = Record[Idx++]; | |||
2041 | MD = PP.AllocateVisibilityMacroDirective(Loc, isPublic); | |||
2042 | break; | |||
2043 | } | |||
2044 | ||||
2045 | if (!Latest) | |||
2046 | Latest = MD; | |||
2047 | if (Earliest) | |||
2048 | Earliest->setPrevious(MD); | |||
2049 | Earliest = MD; | |||
2050 | } | |||
2051 | ||||
2052 | if (Latest) | |||
2053 | PP.setLoadedMacroDirective(II, Earliest, Latest); | |||
2054 | } | |||
2055 | ||||
2056 | ASTReader::InputFileInfo | |||
2057 | ASTReader::readInputFileInfo(ModuleFile &F, unsigned ID) { | |||
2058 | // Go find this input file. | |||
2059 | BitstreamCursor &Cursor = F.InputFilesCursor; | |||
2060 | SavedStreamPosition SavedPosition(Cursor); | |||
2061 | Cursor.JumpToBit(F.InputFileOffsets[ID-1]); | |||
2062 | ||||
2063 | unsigned Code = Cursor.ReadCode(); | |||
2064 | RecordData Record; | |||
2065 | StringRef Blob; | |||
2066 | ||||
2067 | unsigned Result = Cursor.readRecord(Code, Record, &Blob); | |||
2068 | assert(static_cast<InputFileRecordTypes>(Result) == INPUT_FILE &&(static_cast <bool> (static_cast<InputFileRecordTypes >(Result) == INPUT_FILE && "invalid record type for input file" ) ? void (0) : __assert_fail ("static_cast<InputFileRecordTypes>(Result) == INPUT_FILE && \"invalid record type for input file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2069, __extension__ __PRETTY_FUNCTION__)) | |||
2069 | "invalid record type for input file")(static_cast <bool> (static_cast<InputFileRecordTypes >(Result) == INPUT_FILE && "invalid record type for input file" ) ? void (0) : __assert_fail ("static_cast<InputFileRecordTypes>(Result) == INPUT_FILE && \"invalid record type for input file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2069, __extension__ __PRETTY_FUNCTION__)); | |||
2070 | (void)Result; | |||
2071 | ||||
2072 | assert(Record[0] == ID && "Bogus stored ID or offset")(static_cast <bool> (Record[0] == ID && "Bogus stored ID or offset" ) ? void (0) : __assert_fail ("Record[0] == ID && \"Bogus stored ID or offset\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2072, __extension__ __PRETTY_FUNCTION__)); | |||
2073 | InputFileInfo R; | |||
2074 | R.StoredSize = static_cast<off_t>(Record[1]); | |||
2075 | R.StoredTime = static_cast<time_t>(Record[2]); | |||
2076 | R.Overridden = static_cast<bool>(Record[3]); | |||
2077 | R.Transient = static_cast<bool>(Record[4]); | |||
2078 | R.TopLevelModuleMap = static_cast<bool>(Record[5]); | |||
2079 | R.Filename = Blob; | |||
2080 | ResolveImportedPath(F, R.Filename); | |||
2081 | return R; | |||
2082 | } | |||
2083 | ||||
2084 | static unsigned moduleKindForDiagnostic(ModuleKind Kind); | |||
2085 | InputFile ASTReader::getInputFile(ModuleFile &F, unsigned ID, bool Complain) { | |||
2086 | // If this ID is bogus, just return an empty input file. | |||
2087 | if (ID == 0 || ID > F.InputFilesLoaded.size()) | |||
2088 | return InputFile(); | |||
2089 | ||||
2090 | // If we've already loaded this input file, return it. | |||
2091 | if (F.InputFilesLoaded[ID-1].getFile()) | |||
2092 | return F.InputFilesLoaded[ID-1]; | |||
2093 | ||||
2094 | if (F.InputFilesLoaded[ID-1].isNotFound()) | |||
2095 | return InputFile(); | |||
2096 | ||||
2097 | // Go find this input file. | |||
2098 | BitstreamCursor &Cursor = F.InputFilesCursor; | |||
2099 | SavedStreamPosition SavedPosition(Cursor); | |||
2100 | Cursor.JumpToBit(F.InputFileOffsets[ID-1]); | |||
2101 | ||||
2102 | InputFileInfo FI = readInputFileInfo(F, ID); | |||
2103 | off_t StoredSize = FI.StoredSize; | |||
2104 | time_t StoredTime = FI.StoredTime; | |||
2105 | bool Overridden = FI.Overridden; | |||
2106 | bool Transient = FI.Transient; | |||
2107 | StringRef Filename = FI.Filename; | |||
2108 | ||||
2109 | const FileEntry *File = FileMgr.getFile(Filename, /*OpenFile=*/false); | |||
2110 | // If we didn't find the file, resolve it relative to the | |||
2111 | // original directory from which this AST file was created. | |||
2112 | if (File == nullptr && !F.OriginalDir.empty() && !F.BaseDirectory.empty() && | |||
2113 | F.OriginalDir != F.BaseDirectory) { | |||
2114 | std::string Resolved = resolveFileRelativeToOriginalDir( | |||
2115 | Filename, F.OriginalDir, F.BaseDirectory); | |||
2116 | if (!Resolved.empty()) | |||
2117 | File = FileMgr.getFile(Resolved); | |||
2118 | } | |||
2119 | ||||
2120 | // For an overridden file, create a virtual file with the stored | |||
2121 | // size/timestamp. | |||
2122 | if ((Overridden || Transient) && File == nullptr) | |||
2123 | File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime); | |||
2124 | ||||
2125 | if (File == nullptr) { | |||
2126 | if (Complain) { | |||
2127 | std::string ErrorStr = "could not find file '"; | |||
2128 | ErrorStr += Filename; | |||
2129 | ErrorStr += "' referenced by AST file '"; | |||
2130 | ErrorStr += F.FileName; | |||
2131 | ErrorStr += "'"; | |||
2132 | Error(ErrorStr); | |||
2133 | } | |||
2134 | // Record that we didn't find the file. | |||
2135 | F.InputFilesLoaded[ID-1] = InputFile::getNotFound(); | |||
2136 | return InputFile(); | |||
2137 | } | |||
2138 | ||||
2139 | // Check if there was a request to override the contents of the file | |||
2140 | // that was part of the precompiled header. Overriding such a file | |||
2141 | // can lead to problems when lexing using the source locations from the | |||
2142 | // PCH. | |||
2143 | SourceManager &SM = getSourceManager(); | |||
2144 | // FIXME: Reject if the overrides are different. | |||
2145 | if ((!Overridden && !Transient) && SM.isFileOverridden(File)) { | |||
2146 | if (Complain) | |||
2147 | Error(diag::err_fe_pch_file_overridden, Filename); | |||
2148 | // After emitting the diagnostic, recover by disabling the override so | |||
2149 | // that the original file will be used. | |||
2150 | // | |||
2151 | // FIXME: This recovery is just as broken as the original state; there may | |||
2152 | // be another precompiled module that's using the overridden contents, or | |||
2153 | // we might be half way through parsing it. Instead, we should treat the | |||
2154 | // overridden contents as belonging to a separate FileEntry. | |||
2155 | SM.disableFileContentsOverride(File); | |||
2156 | // The FileEntry is a virtual file entry with the size of the contents | |||
2157 | // that would override the original contents. Set it to the original's | |||
2158 | // size/time. | |||
2159 | FileMgr.modifyFileEntry(const_cast<FileEntry*>(File), | |||
2160 | StoredSize, StoredTime); | |||
2161 | } | |||
2162 | ||||
2163 | bool IsOutOfDate = false; | |||
2164 | ||||
2165 | // For an overridden file, there is nothing to validate. | |||
2166 | if (!Overridden && // | |||
2167 | (StoredSize != File->getSize() || | |||
2168 | (StoredTime && StoredTime != File->getModificationTime() && | |||
2169 | !DisableValidation) | |||
2170 | )) { | |||
2171 | if (Complain) { | |||
2172 | // Build a list of the PCH imports that got us here (in reverse). | |||
2173 | SmallVector<ModuleFile *, 4> ImportStack(1, &F); | |||
2174 | while (!ImportStack.back()->ImportedBy.empty()) | |||
2175 | ImportStack.push_back(ImportStack.back()->ImportedBy[0]); | |||
2176 | ||||
2177 | // The top-level PCH is stale. | |||
2178 | StringRef TopLevelPCHName(ImportStack.back()->FileName); | |||
2179 | unsigned DiagnosticKind = moduleKindForDiagnostic(ImportStack.back()->Kind); | |||
2180 | if (DiagnosticKind == 0) | |||
2181 | Error(diag::err_fe_pch_file_modified, Filename, TopLevelPCHName); | |||
2182 | else if (DiagnosticKind == 1) | |||
2183 | Error(diag::err_fe_module_file_modified, Filename, TopLevelPCHName); | |||
2184 | else | |||
2185 | Error(diag::err_fe_ast_file_modified, Filename, TopLevelPCHName); | |||
2186 | ||||
2187 | // Print the import stack. | |||
2188 | if (ImportStack.size() > 1 && !Diags.isDiagnosticInFlight()) { | |||
2189 | Diag(diag::note_pch_required_by) | |||
2190 | << Filename << ImportStack[0]->FileName; | |||
2191 | for (unsigned I = 1; I < ImportStack.size(); ++I) | |||
2192 | Diag(diag::note_pch_required_by) | |||
2193 | << ImportStack[I-1]->FileName << ImportStack[I]->FileName; | |||
2194 | } | |||
2195 | ||||
2196 | if (!Diags.isDiagnosticInFlight()) | |||
2197 | Diag(diag::note_pch_rebuild_required) << TopLevelPCHName; | |||
2198 | } | |||
2199 | ||||
2200 | IsOutOfDate = true; | |||
2201 | } | |||
2202 | // FIXME: If the file is overridden and we've already opened it, | |||
2203 | // issue an error (or split it into a separate FileEntry). | |||
2204 | ||||
2205 | InputFile IF = InputFile(File, Overridden || Transient, IsOutOfDate); | |||
2206 | ||||
2207 | // Note that we've loaded this input file. | |||
2208 | F.InputFilesLoaded[ID-1] = IF; | |||
2209 | return IF; | |||
2210 | } | |||
2211 | ||||
2212 | /// \brief If we are loading a relocatable PCH or module file, and the filename | |||
2213 | /// is not an absolute path, add the system or module root to the beginning of | |||
2214 | /// the file name. | |||
2215 | void ASTReader::ResolveImportedPath(ModuleFile &M, std::string &Filename) { | |||
2216 | // Resolve relative to the base directory, if we have one. | |||
2217 | if (!M.BaseDirectory.empty()) | |||
2218 | return ResolveImportedPath(Filename, M.BaseDirectory); | |||
2219 | } | |||
2220 | ||||
2221 | void ASTReader::ResolveImportedPath(std::string &Filename, StringRef Prefix) { | |||
2222 | if (Filename.empty() || llvm::sys::path::is_absolute(Filename)) | |||
2223 | return; | |||
2224 | ||||
2225 | SmallString<128> Buffer; | |||
2226 | llvm::sys::path::append(Buffer, Prefix, Filename); | |||
2227 | Filename.assign(Buffer.begin(), Buffer.end()); | |||
2228 | } | |||
2229 | ||||
2230 | static bool isDiagnosedResult(ASTReader::ASTReadResult ARR, unsigned Caps) { | |||
2231 | switch (ARR) { | |||
2232 | case ASTReader::Failure: return true; | |||
2233 | case ASTReader::Missing: return !(Caps & ASTReader::ARR_Missing); | |||
2234 | case ASTReader::OutOfDate: return !(Caps & ASTReader::ARR_OutOfDate); | |||
2235 | case ASTReader::VersionMismatch: return !(Caps & ASTReader::ARR_VersionMismatch); | |||
2236 | case ASTReader::ConfigurationMismatch: | |||
2237 | return !(Caps & ASTReader::ARR_ConfigurationMismatch); | |||
2238 | case ASTReader::HadErrors: return true; | |||
2239 | case ASTReader::Success: return false; | |||
2240 | } | |||
2241 | ||||
2242 | llvm_unreachable("unknown ASTReadResult")::llvm::llvm_unreachable_internal("unknown ASTReadResult", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2242); | |||
2243 | } | |||
2244 | ||||
2245 | ASTReader::ASTReadResult ASTReader::ReadOptionsBlock( | |||
2246 | BitstreamCursor &Stream, unsigned ClientLoadCapabilities, | |||
2247 | bool AllowCompatibleConfigurationMismatch, ASTReaderListener &Listener, | |||
2248 | std::string &SuggestedPredefines) { | |||
2249 | if (Stream.EnterSubBlock(OPTIONS_BLOCK_ID)) | |||
2250 | return Failure; | |||
2251 | ||||
2252 | // Read all of the records in the options block. | |||
2253 | RecordData Record; | |||
2254 | ASTReadResult Result = Success; | |||
2255 | while (true) { | |||
2256 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
2257 | ||||
2258 | switch (Entry.Kind) { | |||
2259 | case llvm::BitstreamEntry::Error: | |||
2260 | case llvm::BitstreamEntry::SubBlock: | |||
2261 | return Failure; | |||
2262 | ||||
2263 | case llvm::BitstreamEntry::EndBlock: | |||
2264 | return Result; | |||
2265 | ||||
2266 | case llvm::BitstreamEntry::Record: | |||
2267 | // The interesting case. | |||
2268 | break; | |||
2269 | } | |||
2270 | ||||
2271 | // Read and process a record. | |||
2272 | Record.clear(); | |||
2273 | switch ((OptionsRecordTypes)Stream.readRecord(Entry.ID, Record)) { | |||
2274 | case LANGUAGE_OPTIONS: { | |||
2275 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; | |||
2276 | if (ParseLanguageOptions(Record, Complain, Listener, | |||
2277 | AllowCompatibleConfigurationMismatch)) | |||
2278 | Result = ConfigurationMismatch; | |||
2279 | break; | |||
2280 | } | |||
2281 | ||||
2282 | case TARGET_OPTIONS: { | |||
2283 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; | |||
2284 | if (ParseTargetOptions(Record, Complain, Listener, | |||
2285 | AllowCompatibleConfigurationMismatch)) | |||
2286 | Result = ConfigurationMismatch; | |||
2287 | break; | |||
2288 | } | |||
2289 | ||||
2290 | case FILE_SYSTEM_OPTIONS: { | |||
2291 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; | |||
2292 | if (!AllowCompatibleConfigurationMismatch && | |||
2293 | ParseFileSystemOptions(Record, Complain, Listener)) | |||
2294 | Result = ConfigurationMismatch; | |||
2295 | break; | |||
2296 | } | |||
2297 | ||||
2298 | case HEADER_SEARCH_OPTIONS: { | |||
2299 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; | |||
2300 | if (!AllowCompatibleConfigurationMismatch && | |||
2301 | ParseHeaderSearchOptions(Record, Complain, Listener)) | |||
2302 | Result = ConfigurationMismatch; | |||
2303 | break; | |||
2304 | } | |||
2305 | ||||
2306 | case PREPROCESSOR_OPTIONS: | |||
2307 | bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; | |||
2308 | if (!AllowCompatibleConfigurationMismatch && | |||
2309 | ParsePreprocessorOptions(Record, Complain, Listener, | |||
2310 | SuggestedPredefines)) | |||
2311 | Result = ConfigurationMismatch; | |||
2312 | break; | |||
2313 | } | |||
2314 | } | |||
2315 | } | |||
2316 | ||||
2317 | ASTReader::ASTReadResult | |||
2318 | ASTReader::ReadControlBlock(ModuleFile &F, | |||
2319 | SmallVectorImpl<ImportedModule> &Loaded, | |||
2320 | const ModuleFile *ImportedBy, | |||
2321 | unsigned ClientLoadCapabilities) { | |||
2322 | BitstreamCursor &Stream = F.Stream; | |||
2323 | ASTReadResult Result = Success; | |||
2324 | ||||
2325 | if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { | |||
2326 | Error("malformed block record in AST file"); | |||
2327 | return Failure; | |||
2328 | } | |||
2329 | ||||
2330 | // Lambda to read the unhashed control block the first time it's called. | |||
2331 | // | |||
2332 | // For PCM files, the unhashed control block cannot be read until after the | |||
2333 | // MODULE_NAME record. However, PCH files have no MODULE_NAME, and yet still | |||
2334 | // need to look ahead before reading the IMPORTS record. For consistency, | |||
2335 | // this block is always read somehow (see BitstreamEntry::EndBlock). | |||
2336 | bool HasReadUnhashedControlBlock = false; | |||
2337 | auto readUnhashedControlBlockOnce = [&]() { | |||
2338 | if (!HasReadUnhashedControlBlock) { | |||
2339 | HasReadUnhashedControlBlock = true; | |||
2340 | if (ASTReadResult Result = | |||
2341 | readUnhashedControlBlock(F, ImportedBy, ClientLoadCapabilities)) | |||
2342 | return Result; | |||
2343 | } | |||
2344 | return Success; | |||
2345 | }; | |||
2346 | ||||
2347 | // Read all of the records and blocks in the control block. | |||
2348 | RecordData Record; | |||
2349 | unsigned NumInputs = 0; | |||
2350 | unsigned NumUserInputs = 0; | |||
2351 | while (true) { | |||
2352 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
2353 | ||||
2354 | switch (Entry.Kind) { | |||
2355 | case llvm::BitstreamEntry::Error: | |||
2356 | Error("malformed block record in AST file"); | |||
2357 | return Failure; | |||
2358 | case llvm::BitstreamEntry::EndBlock: { | |||
2359 | // Validate the module before returning. This call catches an AST with | |||
2360 | // no module name and no imports. | |||
2361 | if (ASTReadResult Result = readUnhashedControlBlockOnce()) | |||
2362 | return Result; | |||
2363 | ||||
2364 | // Validate input files. | |||
2365 | const HeaderSearchOptions &HSOpts = | |||
2366 | PP.getHeaderSearchInfo().getHeaderSearchOpts(); | |||
2367 | ||||
2368 | // All user input files reside at the index range [0, NumUserInputs), and | |||
2369 | // system input files reside at [NumUserInputs, NumInputs). For explicitly | |||
2370 | // loaded module files, ignore missing inputs. | |||
2371 | if (!DisableValidation && F.Kind != MK_ExplicitModule && | |||
2372 | F.Kind != MK_PrebuiltModule) { | |||
2373 | bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0; | |||
2374 | ||||
2375 | // If we are reading a module, we will create a verification timestamp, | |||
2376 | // so we verify all input files. Otherwise, verify only user input | |||
2377 | // files. | |||
2378 | ||||
2379 | unsigned N = NumUserInputs; | |||
2380 | if (ValidateSystemInputs || | |||
2381 | (HSOpts.ModulesValidateOncePerBuildSession && | |||
2382 | F.InputFilesValidationTimestamp <= HSOpts.BuildSessionTimestamp && | |||
2383 | F.Kind == MK_ImplicitModule)) | |||
2384 | N = NumInputs; | |||
2385 | ||||
2386 | for (unsigned I = 0; I < N; ++I) { | |||
2387 | InputFile IF = getInputFile(F, I+1, Complain); | |||
2388 | if (!IF.getFile() || IF.isOutOfDate()) | |||
2389 | return OutOfDate; | |||
2390 | } | |||
2391 | } | |||
2392 | ||||
2393 | if (Listener) | |||
2394 | Listener->visitModuleFile(F.FileName, F.Kind); | |||
2395 | ||||
2396 | if (Listener && Listener->needsInputFileVisitation()) { | |||
2397 | unsigned N = Listener->needsSystemInputFileVisitation() ? NumInputs | |||
2398 | : NumUserInputs; | |||
2399 | for (unsigned I = 0; I < N; ++I) { | |||
2400 | bool IsSystem = I >= NumUserInputs; | |||
2401 | InputFileInfo FI = readInputFileInfo(F, I+1); | |||
2402 | Listener->visitInputFile(FI.Filename, IsSystem, FI.Overridden, | |||
2403 | F.Kind == MK_ExplicitModule || | |||
2404 | F.Kind == MK_PrebuiltModule); | |||
2405 | } | |||
2406 | } | |||
2407 | ||||
2408 | return Result; | |||
2409 | } | |||
2410 | ||||
2411 | case llvm::BitstreamEntry::SubBlock: | |||
2412 | switch (Entry.ID) { | |||
2413 | case INPUT_FILES_BLOCK_ID: | |||
2414 | F.InputFilesCursor = Stream; | |||
2415 | if (Stream.SkipBlock() || // Skip with the main cursor | |||
2416 | // Read the abbreviations | |||
2417 | ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) { | |||
2418 | Error("malformed block record in AST file"); | |||
2419 | return Failure; | |||
2420 | } | |||
2421 | continue; | |||
2422 | ||||
2423 | case OPTIONS_BLOCK_ID: | |||
2424 | // If we're reading the first module for this group, check its options | |||
2425 | // are compatible with ours. For modules it imports, no further checking | |||
2426 | // is required, because we checked them when we built it. | |||
2427 | if (Listener && !ImportedBy) { | |||
2428 | // Should we allow the configuration of the module file to differ from | |||
2429 | // the configuration of the current translation unit in a compatible | |||
2430 | // way? | |||
2431 | // | |||
2432 | // FIXME: Allow this for files explicitly specified with -include-pch. | |||
2433 | bool AllowCompatibleConfigurationMismatch = | |||
2434 | F.Kind == MK_ExplicitModule || F.Kind == MK_PrebuiltModule; | |||
2435 | ||||
2436 | Result = ReadOptionsBlock(Stream, ClientLoadCapabilities, | |||
2437 | AllowCompatibleConfigurationMismatch, | |||
2438 | *Listener, SuggestedPredefines); | |||
2439 | if (Result == Failure) { | |||
2440 | Error("malformed block record in AST file"); | |||
2441 | return Result; | |||
2442 | } | |||
2443 | ||||
2444 | if (DisableValidation || | |||
2445 | (AllowConfigurationMismatch && Result == ConfigurationMismatch)) | |||
2446 | Result = Success; | |||
2447 | ||||
2448 | // If we can't load the module, exit early since we likely | |||
2449 | // will rebuild the module anyway. The stream may be in the | |||
2450 | // middle of a block. | |||
2451 | if (Result != Success) | |||
2452 | return Result; | |||
2453 | } else if (Stream.SkipBlock()) { | |||
2454 | Error("malformed block record in AST file"); | |||
2455 | return Failure; | |||
2456 | } | |||
2457 | continue; | |||
2458 | ||||
2459 | default: | |||
2460 | if (Stream.SkipBlock()) { | |||
2461 | Error("malformed block record in AST file"); | |||
2462 | return Failure; | |||
2463 | } | |||
2464 | continue; | |||
2465 | } | |||
2466 | ||||
2467 | case llvm::BitstreamEntry::Record: | |||
2468 | // The interesting case. | |||
2469 | break; | |||
2470 | } | |||
2471 | ||||
2472 | // Read and process a record. | |||
2473 | Record.clear(); | |||
2474 | StringRef Blob; | |||
2475 | switch ((ControlRecordTypes)Stream.readRecord(Entry.ID, Record, &Blob)) { | |||
2476 | case METADATA: { | |||
2477 | if (Record[0] != VERSION_MAJOR && !DisableValidation) { | |||
2478 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) | |||
2479 | Diag(Record[0] < VERSION_MAJOR? diag::err_pch_version_too_old | |||
2480 | : diag::err_pch_version_too_new); | |||
2481 | return VersionMismatch; | |||
2482 | } | |||
2483 | ||||
2484 | bool hasErrors = Record[6]; | |||
2485 | if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) { | |||
2486 | Diag(diag::err_pch_with_compiler_errors); | |||
2487 | return HadErrors; | |||
2488 | } | |||
2489 | if (hasErrors) { | |||
2490 | Diags.ErrorOccurred = true; | |||
2491 | Diags.UncompilableErrorOccurred = true; | |||
2492 | Diags.UnrecoverableErrorOccurred = true; | |||
2493 | } | |||
2494 | ||||
2495 | F.RelocatablePCH = Record[4]; | |||
2496 | // Relative paths in a relocatable PCH are relative to our sysroot. | |||
2497 | if (F.RelocatablePCH) | |||
2498 | F.BaseDirectory = isysroot.empty() ? "/" : isysroot; | |||
2499 | ||||
2500 | F.HasTimestamps = Record[5]; | |||
2501 | ||||
2502 | const std::string &CurBranch = getClangFullRepositoryVersion(); | |||
2503 | StringRef ASTBranch = Blob; | |||
2504 | if (StringRef(CurBranch) != ASTBranch && !DisableValidation) { | |||
2505 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) | |||
2506 | Diag(diag::err_pch_different_branch) << ASTBranch << CurBranch; | |||
2507 | return VersionMismatch; | |||
2508 | } | |||
2509 | break; | |||
2510 | } | |||
2511 | ||||
2512 | case IMPORTS: { | |||
2513 | // Validate the AST before processing any imports (otherwise, untangling | |||
2514 | // them can be error-prone and expensive). A module will have a name and | |||
2515 | // will already have been validated, but this catches the PCH case. | |||
2516 | if (ASTReadResult Result = readUnhashedControlBlockOnce()) | |||
2517 | return Result; | |||
2518 | ||||
2519 | // Load each of the imported PCH files. | |||
2520 | unsigned Idx = 0, N = Record.size(); | |||
2521 | while (Idx < N) { | |||
2522 | // Read information about the AST file. | |||
2523 | ModuleKind ImportedKind = (ModuleKind)Record[Idx++]; | |||
2524 | // The import location will be the local one for now; we will adjust | |||
2525 | // all import locations of module imports after the global source | |||
2526 | // location info are setup, in ReadAST. | |||
2527 | SourceLocation ImportLoc = | |||
2528 | ReadUntranslatedSourceLocation(Record[Idx++]); | |||
2529 | off_t StoredSize = (off_t)Record[Idx++]; | |||
2530 | time_t StoredModTime = (time_t)Record[Idx++]; | |||
2531 | ASTFileSignature StoredSignature = { | |||
2532 | {{(uint32_t)Record[Idx++], (uint32_t)Record[Idx++], | |||
2533 | (uint32_t)Record[Idx++], (uint32_t)Record[Idx++], | |||
2534 | (uint32_t)Record[Idx++]}}}; | |||
2535 | ||||
2536 | std::string ImportedName = ReadString(Record, Idx); | |||
2537 | std::string ImportedFile; | |||
2538 | ||||
2539 | // For prebuilt and explicit modules first consult the file map for | |||
2540 | // an override. Note that here we don't search prebuilt module | |||
2541 | // directories, only the explicit name to file mappings. Also, we will | |||
2542 | // still verify the size/signature making sure it is essentially the | |||
2543 | // same file but perhaps in a different location. | |||
2544 | if (ImportedKind == MK_PrebuiltModule || ImportedKind == MK_ExplicitModule) | |||
2545 | ImportedFile = PP.getHeaderSearchInfo().getPrebuiltModuleFileName( | |||
2546 | ImportedName, /*FileMapOnly*/ true); | |||
2547 | ||||
2548 | if (ImportedFile.empty()) | |||
2549 | ImportedFile = ReadPath(F, Record, Idx); | |||
2550 | else | |||
2551 | SkipPath(Record, Idx); | |||
2552 | ||||
2553 | // If our client can't cope with us being out of date, we can't cope with | |||
2554 | // our dependency being missing. | |||
2555 | unsigned Capabilities = ClientLoadCapabilities; | |||
2556 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
2557 | Capabilities &= ~ARR_Missing; | |||
2558 | ||||
2559 | // Load the AST file. | |||
2560 | auto Result = ReadASTCore(ImportedFile, ImportedKind, ImportLoc, &F, | |||
2561 | Loaded, StoredSize, StoredModTime, | |||
2562 | StoredSignature, Capabilities); | |||
2563 | ||||
2564 | // If we diagnosed a problem, produce a backtrace. | |||
2565 | if (isDiagnosedResult(Result, Capabilities)) | |||
2566 | Diag(diag::note_module_file_imported_by) | |||
2567 | << F.FileName << !F.ModuleName.empty() << F.ModuleName; | |||
2568 | ||||
2569 | switch (Result) { | |||
2570 | case Failure: return Failure; | |||
2571 | // If we have to ignore the dependency, we'll have to ignore this too. | |||
2572 | case Missing: | |||
2573 | case OutOfDate: return OutOfDate; | |||
2574 | case VersionMismatch: return VersionMismatch; | |||
2575 | case ConfigurationMismatch: return ConfigurationMismatch; | |||
2576 | case HadErrors: return HadErrors; | |||
2577 | case Success: break; | |||
2578 | } | |||
2579 | } | |||
2580 | break; | |||
2581 | } | |||
2582 | ||||
2583 | case ORIGINAL_FILE: | |||
2584 | F.OriginalSourceFileID = FileID::get(Record[0]); | |||
2585 | F.ActualOriginalSourceFileName = Blob; | |||
2586 | F.OriginalSourceFileName = F.ActualOriginalSourceFileName; | |||
2587 | ResolveImportedPath(F, F.OriginalSourceFileName); | |||
2588 | break; | |||
2589 | ||||
2590 | case ORIGINAL_FILE_ID: | |||
2591 | F.OriginalSourceFileID = FileID::get(Record[0]); | |||
2592 | break; | |||
2593 | ||||
2594 | case ORIGINAL_PCH_DIR: | |||
2595 | F.OriginalDir = Blob; | |||
2596 | break; | |||
2597 | ||||
2598 | case MODULE_NAME: | |||
2599 | F.ModuleName = Blob; | |||
2600 | if (Listener) | |||
2601 | Listener->ReadModuleName(F.ModuleName); | |||
2602 | ||||
2603 | // Validate the AST as soon as we have a name so we can exit early on | |||
2604 | // failure. | |||
2605 | if (ASTReadResult Result = readUnhashedControlBlockOnce()) | |||
2606 | return Result; | |||
2607 | ||||
2608 | break; | |||
2609 | ||||
2610 | case MODULE_DIRECTORY: { | |||
2611 | assert(!F.ModuleName.empty() &&(static_cast <bool> (!F.ModuleName.empty() && "MODULE_DIRECTORY found before MODULE_NAME" ) ? void (0) : __assert_fail ("!F.ModuleName.empty() && \"MODULE_DIRECTORY found before MODULE_NAME\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2612, __extension__ __PRETTY_FUNCTION__)) | |||
2612 | "MODULE_DIRECTORY found before MODULE_NAME")(static_cast <bool> (!F.ModuleName.empty() && "MODULE_DIRECTORY found before MODULE_NAME" ) ? void (0) : __assert_fail ("!F.ModuleName.empty() && \"MODULE_DIRECTORY found before MODULE_NAME\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 2612, __extension__ __PRETTY_FUNCTION__)); | |||
2613 | // If we've already loaded a module map file covering this module, we may | |||
2614 | // have a better path for it (relative to the current build). | |||
2615 | Module *M = PP.getHeaderSearchInfo().lookupModule(F.ModuleName); | |||
2616 | if (M && M->Directory) { | |||
2617 | // If we're implicitly loading a module, the base directory can't | |||
2618 | // change between the build and use. | |||
2619 | if (F.Kind != MK_ExplicitModule && F.Kind != MK_PrebuiltModule) { | |||
2620 | const DirectoryEntry *BuildDir = | |||
2621 | PP.getFileManager().getDirectory(Blob); | |||
2622 | if (!BuildDir || BuildDir != M->Directory) { | |||
2623 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
2624 | Diag(diag::err_imported_module_relocated) | |||
2625 | << F.ModuleName << Blob << M->Directory->getName(); | |||
2626 | return OutOfDate; | |||
2627 | } | |||
2628 | } | |||
2629 | F.BaseDirectory = M->Directory->getName(); | |||
2630 | } else { | |||
2631 | F.BaseDirectory = Blob; | |||
2632 | } | |||
2633 | break; | |||
2634 | } | |||
2635 | ||||
2636 | case MODULE_MAP_FILE: | |||
2637 | if (ASTReadResult Result = | |||
2638 | ReadModuleMapFileBlock(Record, F, ImportedBy, ClientLoadCapabilities)) | |||
2639 | return Result; | |||
2640 | break; | |||
2641 | ||||
2642 | case INPUT_FILE_OFFSETS: | |||
2643 | NumInputs = Record[0]; | |||
2644 | NumUserInputs = Record[1]; | |||
2645 | F.InputFileOffsets = | |||
2646 | (const llvm::support::unaligned_uint64_t *)Blob.data(); | |||
2647 | F.InputFilesLoaded.resize(NumInputs); | |||
2648 | F.NumUserInputFiles = NumUserInputs; | |||
2649 | break; | |||
2650 | } | |||
2651 | } | |||
2652 | } | |||
2653 | ||||
2654 | ASTReader::ASTReadResult | |||
2655 | ASTReader::ReadASTBlock(ModuleFile &F, unsigned ClientLoadCapabilities) { | |||
2656 | BitstreamCursor &Stream = F.Stream; | |||
2657 | ||||
2658 | if (Stream.EnterSubBlock(AST_BLOCK_ID)) { | |||
2659 | Error("malformed block record in AST file"); | |||
2660 | return Failure; | |||
2661 | } | |||
2662 | ||||
2663 | // Read all of the records and blocks for the AST file. | |||
2664 | RecordData Record; | |||
2665 | while (true) { | |||
2666 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
2667 | ||||
2668 | switch (Entry.Kind) { | |||
2669 | case llvm::BitstreamEntry::Error: | |||
2670 | Error("error at end of module block in AST file"); | |||
2671 | return Failure; | |||
2672 | case llvm::BitstreamEntry::EndBlock: | |||
2673 | // Outside of C++, we do not store a lookup map for the translation unit. | |||
2674 | // Instead, mark it as needing a lookup map to be built if this module | |||
2675 | // contains any declarations lexically within it (which it always does!). | |||
2676 | // This usually has no cost, since we very rarely need the lookup map for | |||
2677 | // the translation unit outside C++. | |||
2678 | if (ASTContext *Ctx = ContextObj) { | |||
2679 | DeclContext *DC = Ctx->getTranslationUnitDecl(); | |||
2680 | if (DC->hasExternalLexicalStorage() && !Ctx->getLangOpts().CPlusPlus) | |||
2681 | DC->setMustBuildLookupTable(); | |||
2682 | } | |||
2683 | ||||
2684 | return Success; | |||
2685 | case llvm::BitstreamEntry::SubBlock: | |||
2686 | switch (Entry.ID) { | |||
2687 | case DECLTYPES_BLOCK_ID: | |||
2688 | // We lazily load the decls block, but we want to set up the | |||
2689 | // DeclsCursor cursor to point into it. Clone our current bitcode | |||
2690 | // cursor to it, enter the block and read the abbrevs in that block. | |||
2691 | // With the main cursor, we just skip over it. | |||
2692 | F.DeclsCursor = Stream; | |||
2693 | if (Stream.SkipBlock() || // Skip with the main cursor. | |||
2694 | // Read the abbrevs. | |||
2695 | ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) { | |||
2696 | Error("malformed block record in AST file"); | |||
2697 | return Failure; | |||
2698 | } | |||
2699 | break; | |||
2700 | ||||
2701 | case PREPROCESSOR_BLOCK_ID: | |||
2702 | F.MacroCursor = Stream; | |||
2703 | if (!PP.getExternalSource()) | |||
2704 | PP.setExternalSource(this); | |||
2705 | ||||
2706 | if (Stream.SkipBlock() || | |||
2707 | ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) { | |||
2708 | Error("malformed block record in AST file"); | |||
2709 | return Failure; | |||
2710 | } | |||
2711 | F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo(); | |||
2712 | break; | |||
2713 | ||||
2714 | case PREPROCESSOR_DETAIL_BLOCK_ID: | |||
2715 | F.PreprocessorDetailCursor = Stream; | |||
2716 | if (Stream.SkipBlock() || | |||
2717 | ReadBlockAbbrevs(F.PreprocessorDetailCursor, | |||
2718 | PREPROCESSOR_DETAIL_BLOCK_ID)) { | |||
2719 | Error("malformed preprocessor detail record in AST file"); | |||
2720 | return Failure; | |||
2721 | } | |||
2722 | F.PreprocessorDetailStartOffset | |||
2723 | = F.PreprocessorDetailCursor.GetCurrentBitNo(); | |||
2724 | ||||
2725 | if (!PP.getPreprocessingRecord()) | |||
2726 | PP.createPreprocessingRecord(); | |||
2727 | if (!PP.getPreprocessingRecord()->getExternalSource()) | |||
2728 | PP.getPreprocessingRecord()->SetExternalSource(*this); | |||
2729 | break; | |||
2730 | ||||
2731 | case SOURCE_MANAGER_BLOCK_ID: | |||
2732 | if (ReadSourceManagerBlock(F)) | |||
2733 | return Failure; | |||
2734 | break; | |||
2735 | ||||
2736 | case SUBMODULE_BLOCK_ID: | |||
2737 | if (ASTReadResult Result = | |||
2738 | ReadSubmoduleBlock(F, ClientLoadCapabilities)) | |||
2739 | return Result; | |||
2740 | break; | |||
2741 | ||||
2742 | case COMMENTS_BLOCK_ID: { | |||
2743 | BitstreamCursor C = Stream; | |||
2744 | if (Stream.SkipBlock() || | |||
2745 | ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) { | |||
2746 | Error("malformed comments block in AST file"); | |||
2747 | return Failure; | |||
2748 | } | |||
2749 | CommentsCursors.push_back(std::make_pair(C, &F)); | |||
2750 | break; | |||
2751 | } | |||
2752 | ||||
2753 | default: | |||
2754 | if (Stream.SkipBlock()) { | |||
2755 | Error("malformed block record in AST file"); | |||
2756 | return Failure; | |||
2757 | } | |||
2758 | break; | |||
2759 | } | |||
2760 | continue; | |||
2761 | ||||
2762 | case llvm::BitstreamEntry::Record: | |||
2763 | // The interesting case. | |||
2764 | break; | |||
2765 | } | |||
2766 | ||||
2767 | // Read and process a record. | |||
2768 | Record.clear(); | |||
2769 | StringRef Blob; | |||
2770 | auto RecordType = | |||
2771 | (ASTRecordTypes)Stream.readRecord(Entry.ID, Record, &Blob); | |||
2772 | ||||
2773 | // If we're not loading an AST context, we don't care about most records. | |||
2774 | if (!ContextObj) { | |||
2775 | switch (RecordType) { | |||
2776 | case IDENTIFIER_TABLE: | |||
2777 | case IDENTIFIER_OFFSET: | |||
2778 | case INTERESTING_IDENTIFIERS: | |||
2779 | case STATISTICS: | |||
2780 | case PP_CONDITIONAL_STACK: | |||
2781 | case PP_COUNTER_VALUE: | |||
2782 | case SOURCE_LOCATION_OFFSETS: | |||
2783 | case MODULE_OFFSET_MAP: | |||
2784 | case SOURCE_MANAGER_LINE_TABLE: | |||
2785 | case SOURCE_LOCATION_PRELOADS: | |||
2786 | case PPD_ENTITIES_OFFSETS: | |||
2787 | case HEADER_SEARCH_TABLE: | |||
2788 | case IMPORTED_MODULES: | |||
2789 | case MACRO_OFFSET: | |||
2790 | break; | |||
2791 | default: | |||
2792 | continue; | |||
2793 | } | |||
2794 | } | |||
2795 | ||||
2796 | switch (RecordType) { | |||
2797 | default: // Default behavior: ignore. | |||
2798 | break; | |||
2799 | ||||
2800 | case TYPE_OFFSET: { | |||
2801 | if (F.LocalNumTypes != 0) { | |||
2802 | Error("duplicate TYPE_OFFSET record in AST file"); | |||
2803 | return Failure; | |||
2804 | } | |||
2805 | F.TypeOffsets = (const uint32_t *)Blob.data(); | |||
2806 | F.LocalNumTypes = Record[0]; | |||
2807 | unsigned LocalBaseTypeIndex = Record[1]; | |||
2808 | F.BaseTypeIndex = getTotalNumTypes(); | |||
2809 | ||||
2810 | if (F.LocalNumTypes > 0) { | |||
2811 | // Introduce the global -> local mapping for types within this module. | |||
2812 | GlobalTypeMap.insert(std::make_pair(getTotalNumTypes(), &F)); | |||
2813 | ||||
2814 | // Introduce the local -> global mapping for types within this module. | |||
2815 | F.TypeRemap.insertOrReplace( | |||
2816 | std::make_pair(LocalBaseTypeIndex, | |||
2817 | F.BaseTypeIndex - LocalBaseTypeIndex)); | |||
2818 | ||||
2819 | TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes); | |||
2820 | } | |||
2821 | break; | |||
2822 | } | |||
2823 | ||||
2824 | case DECL_OFFSET: { | |||
2825 | if (F.LocalNumDecls != 0) { | |||
2826 | Error("duplicate DECL_OFFSET record in AST file"); | |||
2827 | return Failure; | |||
2828 | } | |||
2829 | F.DeclOffsets = (const DeclOffset *)Blob.data(); | |||
2830 | F.LocalNumDecls = Record[0]; | |||
2831 | unsigned LocalBaseDeclID = Record[1]; | |||
2832 | F.BaseDeclID = getTotalNumDecls(); | |||
2833 | ||||
2834 | if (F.LocalNumDecls > 0) { | |||
2835 | // Introduce the global -> local mapping for declarations within this | |||
2836 | // module. | |||
2837 | GlobalDeclMap.insert( | |||
2838 | std::make_pair(getTotalNumDecls() + NUM_PREDEF_DECL_IDS, &F)); | |||
2839 | ||||
2840 | // Introduce the local -> global mapping for declarations within this | |||
2841 | // module. | |||
2842 | F.DeclRemap.insertOrReplace( | |||
2843 | std::make_pair(LocalBaseDeclID, F.BaseDeclID - LocalBaseDeclID)); | |||
2844 | ||||
2845 | // Introduce the global -> local mapping for declarations within this | |||
2846 | // module. | |||
2847 | F.GlobalToLocalDeclIDs[&F] = LocalBaseDeclID; | |||
2848 | ||||
2849 | DeclsLoaded.resize(DeclsLoaded.size() + F.LocalNumDecls); | |||
2850 | } | |||
2851 | break; | |||
2852 | } | |||
2853 | ||||
2854 | case TU_UPDATE_LEXICAL: { | |||
2855 | DeclContext *TU = ContextObj->getTranslationUnitDecl(); | |||
2856 | LexicalContents Contents( | |||
2857 | reinterpret_cast<const llvm::support::unaligned_uint32_t *>( | |||
2858 | Blob.data()), | |||
2859 | static_cast<unsigned int>(Blob.size() / 4)); | |||
2860 | TULexicalDecls.push_back(std::make_pair(&F, Contents)); | |||
2861 | TU->setHasExternalLexicalStorage(true); | |||
2862 | break; | |||
2863 | } | |||
2864 | ||||
2865 | case UPDATE_VISIBLE: { | |||
2866 | unsigned Idx = 0; | |||
2867 | serialization::DeclID ID = ReadDeclID(F, Record, Idx); | |||
2868 | auto *Data = (const unsigned char*)Blob.data(); | |||
2869 | PendingVisibleUpdates[ID].push_back(PendingVisibleUpdate{&F, Data}); | |||
2870 | // If we've already loaded the decl, perform the updates when we finish | |||
2871 | // loading this block. | |||
2872 | if (Decl *D = GetExistingDecl(ID)) | |||
2873 | PendingUpdateRecords.push_back( | |||
2874 | PendingUpdateRecord(ID, D, /*JustLoaded=*/false)); | |||
2875 | break; | |||
2876 | } | |||
2877 | ||||
2878 | case IDENTIFIER_TABLE: | |||
2879 | F.IdentifierTableData = Blob.data(); | |||
2880 | if (Record[0]) { | |||
2881 | F.IdentifierLookupTable = ASTIdentifierLookupTable::Create( | |||
2882 | (const unsigned char *)F.IdentifierTableData + Record[0], | |||
2883 | (const unsigned char *)F.IdentifierTableData + sizeof(uint32_t), | |||
2884 | (const unsigned char *)F.IdentifierTableData, | |||
2885 | ASTIdentifierLookupTrait(*this, F)); | |||
2886 | ||||
2887 | PP.getIdentifierTable().setExternalIdentifierLookup(this); | |||
2888 | } | |||
2889 | break; | |||
2890 | ||||
2891 | case IDENTIFIER_OFFSET: { | |||
2892 | if (F.LocalNumIdentifiers != 0) { | |||
2893 | Error("duplicate IDENTIFIER_OFFSET record in AST file"); | |||
2894 | return Failure; | |||
2895 | } | |||
2896 | F.IdentifierOffsets = (const uint32_t *)Blob.data(); | |||
2897 | F.LocalNumIdentifiers = Record[0]; | |||
2898 | unsigned LocalBaseIdentifierID = Record[1]; | |||
2899 | F.BaseIdentifierID = getTotalNumIdentifiers(); | |||
2900 | ||||
2901 | if (F.LocalNumIdentifiers > 0) { | |||
2902 | // Introduce the global -> local mapping for identifiers within this | |||
2903 | // module. | |||
2904 | GlobalIdentifierMap.insert(std::make_pair(getTotalNumIdentifiers() + 1, | |||
2905 | &F)); | |||
2906 | ||||
2907 | // Introduce the local -> global mapping for identifiers within this | |||
2908 | // module. | |||
2909 | F.IdentifierRemap.insertOrReplace( | |||
2910 | std::make_pair(LocalBaseIdentifierID, | |||
2911 | F.BaseIdentifierID - LocalBaseIdentifierID)); | |||
2912 | ||||
2913 | IdentifiersLoaded.resize(IdentifiersLoaded.size() | |||
2914 | + F.LocalNumIdentifiers); | |||
2915 | } | |||
2916 | break; | |||
2917 | } | |||
2918 | ||||
2919 | case INTERESTING_IDENTIFIERS: | |||
2920 | F.PreloadIdentifierOffsets.assign(Record.begin(), Record.end()); | |||
2921 | break; | |||
2922 | ||||
2923 | case EAGERLY_DESERIALIZED_DECLS: | |||
2924 | // FIXME: Skip reading this record if our ASTConsumer doesn't care | |||
2925 | // about "interesting" decls (for instance, if we're building a module). | |||
2926 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
2927 | EagerlyDeserializedDecls.push_back(getGlobalDeclID(F, Record[I])); | |||
2928 | break; | |||
2929 | ||||
2930 | case MODULAR_CODEGEN_DECLS: | |||
2931 | // FIXME: Skip reading this record if our ASTConsumer doesn't care about | |||
2932 | // them (ie: if we're not codegenerating this module). | |||
2933 | if (F.Kind == MK_MainFile) | |||
2934 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
2935 | EagerlyDeserializedDecls.push_back(getGlobalDeclID(F, Record[I])); | |||
2936 | break; | |||
2937 | ||||
2938 | case SPECIAL_TYPES: | |||
2939 | if (SpecialTypes.empty()) { | |||
2940 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
2941 | SpecialTypes.push_back(getGlobalTypeID(F, Record[I])); | |||
2942 | break; | |||
2943 | } | |||
2944 | ||||
2945 | if (SpecialTypes.size() != Record.size()) { | |||
2946 | Error("invalid special-types record"); | |||
2947 | return Failure; | |||
2948 | } | |||
2949 | ||||
2950 | for (unsigned I = 0, N = Record.size(); I != N; ++I) { | |||
2951 | serialization::TypeID ID = getGlobalTypeID(F, Record[I]); | |||
2952 | if (!SpecialTypes[I]) | |||
2953 | SpecialTypes[I] = ID; | |||
2954 | // FIXME: If ID && SpecialTypes[I] != ID, do we need a separate | |||
2955 | // merge step? | |||
2956 | } | |||
2957 | break; | |||
2958 | ||||
2959 | case STATISTICS: | |||
2960 | TotalNumStatements += Record[0]; | |||
2961 | TotalNumMacros += Record[1]; | |||
2962 | TotalLexicalDeclContexts += Record[2]; | |||
2963 | TotalVisibleDeclContexts += Record[3]; | |||
2964 | break; | |||
2965 | ||||
2966 | case UNUSED_FILESCOPED_DECLS: | |||
2967 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
2968 | UnusedFileScopedDecls.push_back(getGlobalDeclID(F, Record[I])); | |||
2969 | break; | |||
2970 | ||||
2971 | case DELEGATING_CTORS: | |||
2972 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
2973 | DelegatingCtorDecls.push_back(getGlobalDeclID(F, Record[I])); | |||
2974 | break; | |||
2975 | ||||
2976 | case WEAK_UNDECLARED_IDENTIFIERS: | |||
2977 | if (Record.size() % 4 != 0) { | |||
2978 | Error("invalid weak identifiers record"); | |||
2979 | return Failure; | |||
2980 | } | |||
2981 | ||||
2982 | // FIXME: Ignore weak undeclared identifiers from non-original PCH | |||
2983 | // files. This isn't the way to do it :) | |||
2984 | WeakUndeclaredIdentifiers.clear(); | |||
2985 | ||||
2986 | // Translate the weak, undeclared identifiers into global IDs. | |||
2987 | for (unsigned I = 0, N = Record.size(); I < N; /* in loop */) { | |||
2988 | WeakUndeclaredIdentifiers.push_back( | |||
2989 | getGlobalIdentifierID(F, Record[I++])); | |||
2990 | WeakUndeclaredIdentifiers.push_back( | |||
2991 | getGlobalIdentifierID(F, Record[I++])); | |||
2992 | WeakUndeclaredIdentifiers.push_back( | |||
2993 | ReadSourceLocation(F, Record, I).getRawEncoding()); | |||
2994 | WeakUndeclaredIdentifiers.push_back(Record[I++]); | |||
2995 | } | |||
2996 | break; | |||
2997 | ||||
2998 | case SELECTOR_OFFSETS: { | |||
2999 | F.SelectorOffsets = (const uint32_t *)Blob.data(); | |||
3000 | F.LocalNumSelectors = Record[0]; | |||
3001 | unsigned LocalBaseSelectorID = Record[1]; | |||
3002 | F.BaseSelectorID = getTotalNumSelectors(); | |||
3003 | ||||
3004 | if (F.LocalNumSelectors > 0) { | |||
3005 | // Introduce the global -> local mapping for selectors within this | |||
3006 | // module. | |||
3007 | GlobalSelectorMap.insert(std::make_pair(getTotalNumSelectors()+1, &F)); | |||
3008 | ||||
3009 | // Introduce the local -> global mapping for selectors within this | |||
3010 | // module. | |||
3011 | F.SelectorRemap.insertOrReplace( | |||
3012 | std::make_pair(LocalBaseSelectorID, | |||
3013 | F.BaseSelectorID - LocalBaseSelectorID)); | |||
3014 | ||||
3015 | SelectorsLoaded.resize(SelectorsLoaded.size() + F.LocalNumSelectors); | |||
3016 | } | |||
3017 | break; | |||
3018 | } | |||
3019 | ||||
3020 | case METHOD_POOL: | |||
3021 | F.SelectorLookupTableData = (const unsigned char *)Blob.data(); | |||
3022 | if (Record[0]) | |||
3023 | F.SelectorLookupTable | |||
3024 | = ASTSelectorLookupTable::Create( | |||
3025 | F.SelectorLookupTableData + Record[0], | |||
3026 | F.SelectorLookupTableData, | |||
3027 | ASTSelectorLookupTrait(*this, F)); | |||
3028 | TotalNumMethodPoolEntries += Record[1]; | |||
3029 | break; | |||
3030 | ||||
3031 | case REFERENCED_SELECTOR_POOL: | |||
3032 | if (!Record.empty()) { | |||
3033 | for (unsigned Idx = 0, N = Record.size() - 1; Idx < N; /* in loop */) { | |||
3034 | ReferencedSelectorsData.push_back(getGlobalSelectorID(F, | |||
3035 | Record[Idx++])); | |||
3036 | ReferencedSelectorsData.push_back(ReadSourceLocation(F, Record, Idx). | |||
3037 | getRawEncoding()); | |||
3038 | } | |||
3039 | } | |||
3040 | break; | |||
3041 | ||||
3042 | case PP_CONDITIONAL_STACK: | |||
3043 | if (!Record.empty()) { | |||
3044 | unsigned Idx = 0, End = Record.size() - 1; | |||
3045 | bool ReachedEOFWhileSkipping = Record[Idx++]; | |||
3046 | llvm::Optional<Preprocessor::PreambleSkipInfo> SkipInfo; | |||
3047 | if (ReachedEOFWhileSkipping) { | |||
3048 | SourceLocation HashToken = ReadSourceLocation(F, Record, Idx); | |||
3049 | SourceLocation IfTokenLoc = ReadSourceLocation(F, Record, Idx); | |||
3050 | bool FoundNonSkipPortion = Record[Idx++]; | |||
3051 | bool FoundElse = Record[Idx++]; | |||
3052 | SourceLocation ElseLoc = ReadSourceLocation(F, Record, Idx); | |||
3053 | SkipInfo.emplace(HashToken, IfTokenLoc, FoundNonSkipPortion, | |||
3054 | FoundElse, ElseLoc); | |||
3055 | } | |||
3056 | SmallVector<PPConditionalInfo, 4> ConditionalStack; | |||
3057 | while (Idx < End) { | |||
3058 | auto Loc = ReadSourceLocation(F, Record, Idx); | |||
3059 | bool WasSkipping = Record[Idx++]; | |||
3060 | bool FoundNonSkip = Record[Idx++]; | |||
3061 | bool FoundElse = Record[Idx++]; | |||
3062 | ConditionalStack.push_back( | |||
3063 | {Loc, WasSkipping, FoundNonSkip, FoundElse}); | |||
3064 | } | |||
3065 | PP.setReplayablePreambleConditionalStack(ConditionalStack, SkipInfo); | |||
3066 | } | |||
3067 | break; | |||
3068 | ||||
3069 | case PP_COUNTER_VALUE: | |||
3070 | if (!Record.empty() && Listener) | |||
3071 | Listener->ReadCounter(F, Record[0]); | |||
3072 | break; | |||
3073 | ||||
3074 | case FILE_SORTED_DECLS: | |||
3075 | F.FileSortedDecls = (const DeclID *)Blob.data(); | |||
3076 | F.NumFileSortedDecls = Record[0]; | |||
3077 | break; | |||
3078 | ||||
3079 | case SOURCE_LOCATION_OFFSETS: { | |||
3080 | F.SLocEntryOffsets = (const uint32_t *)Blob.data(); | |||
3081 | F.LocalNumSLocEntries = Record[0]; | |||
3082 | unsigned SLocSpaceSize = Record[1]; | |||
3083 | std::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) = | |||
3084 | SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries, | |||
3085 | SLocSpaceSize); | |||
3086 | if (!F.SLocEntryBaseID) { | |||
3087 | Error("ran out of source locations"); | |||
3088 | break; | |||
3089 | } | |||
3090 | // Make our entry in the range map. BaseID is negative and growing, so | |||
3091 | // we invert it. Because we invert it, though, we need the other end of | |||
3092 | // the range. | |||
3093 | unsigned RangeStart = | |||
3094 | unsigned(-F.SLocEntryBaseID) - F.LocalNumSLocEntries + 1; | |||
3095 | GlobalSLocEntryMap.insert(std::make_pair(RangeStart, &F)); | |||
3096 | F.FirstLoc = SourceLocation::getFromRawEncoding(F.SLocEntryBaseOffset); | |||
3097 | ||||
3098 | // SLocEntryBaseOffset is lower than MaxLoadedOffset and decreasing. | |||
3099 | assert((F.SLocEntryBaseOffset & (1U << 31U)) == 0)(static_cast <bool> ((F.SLocEntryBaseOffset & (1U << 31U)) == 0) ? void (0) : __assert_fail ("(F.SLocEntryBaseOffset & (1U << 31U)) == 0" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3099, __extension__ __PRETTY_FUNCTION__)); | |||
3100 | GlobalSLocOffsetMap.insert( | |||
3101 | std::make_pair(SourceManager::MaxLoadedOffset - F.SLocEntryBaseOffset | |||
3102 | - SLocSpaceSize,&F)); | |||
3103 | ||||
3104 | // Initialize the remapping table. | |||
3105 | // Invalid stays invalid. | |||
3106 | F.SLocRemap.insertOrReplace(std::make_pair(0U, 0)); | |||
3107 | // This module. Base was 2 when being compiled. | |||
3108 | F.SLocRemap.insertOrReplace(std::make_pair(2U, | |||
3109 | static_cast<int>(F.SLocEntryBaseOffset - 2))); | |||
3110 | ||||
3111 | TotalNumSLocEntries += F.LocalNumSLocEntries; | |||
3112 | break; | |||
3113 | } | |||
3114 | ||||
3115 | case MODULE_OFFSET_MAP: | |||
3116 | F.ModuleOffsetMap = Blob; | |||
3117 | break; | |||
3118 | ||||
3119 | case SOURCE_MANAGER_LINE_TABLE: | |||
3120 | if (ParseLineTable(F, Record)) | |||
3121 | return Failure; | |||
3122 | break; | |||
3123 | ||||
3124 | case SOURCE_LOCATION_PRELOADS: { | |||
3125 | // Need to transform from the local view (1-based IDs) to the global view, | |||
3126 | // which is based off F.SLocEntryBaseID. | |||
3127 | if (!F.PreloadSLocEntries.empty()) { | |||
3128 | Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file"); | |||
3129 | return Failure; | |||
3130 | } | |||
3131 | ||||
3132 | F.PreloadSLocEntries.swap(Record); | |||
3133 | break; | |||
3134 | } | |||
3135 | ||||
3136 | case EXT_VECTOR_DECLS: | |||
3137 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
3138 | ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I])); | |||
3139 | break; | |||
3140 | ||||
3141 | case VTABLE_USES: | |||
3142 | if (Record.size() % 3 != 0) { | |||
3143 | Error("Invalid VTABLE_USES record"); | |||
3144 | return Failure; | |||
3145 | } | |||
3146 | ||||
3147 | // Later tables overwrite earlier ones. | |||
3148 | // FIXME: Modules will have some trouble with this. This is clearly not | |||
3149 | // the right way to do this. | |||
3150 | VTableUses.clear(); | |||
3151 | ||||
3152 | for (unsigned Idx = 0, N = Record.size(); Idx != N; /* In loop */) { | |||
3153 | VTableUses.push_back(getGlobalDeclID(F, Record[Idx++])); | |||
3154 | VTableUses.push_back( | |||
3155 | ReadSourceLocation(F, Record, Idx).getRawEncoding()); | |||
3156 | VTableUses.push_back(Record[Idx++]); | |||
3157 | } | |||
3158 | break; | |||
3159 | ||||
3160 | case PENDING_IMPLICIT_INSTANTIATIONS: | |||
3161 | if (PendingInstantiations.size() % 2 != 0) { | |||
3162 | Error("Invalid existing PendingInstantiations"); | |||
3163 | return Failure; | |||
3164 | } | |||
3165 | ||||
3166 | if (Record.size() % 2 != 0) { | |||
3167 | Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block"); | |||
3168 | return Failure; | |||
3169 | } | |||
3170 | ||||
3171 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { | |||
3172 | PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++])); | |||
3173 | PendingInstantiations.push_back( | |||
3174 | ReadSourceLocation(F, Record, I).getRawEncoding()); | |||
3175 | } | |||
3176 | break; | |||
3177 | ||||
3178 | case SEMA_DECL_REFS: | |||
3179 | if (Record.size() != 3) { | |||
3180 | Error("Invalid SEMA_DECL_REFS block"); | |||
3181 | return Failure; | |||
3182 | } | |||
3183 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
3184 | SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I])); | |||
3185 | break; | |||
3186 | ||||
3187 | case PPD_ENTITIES_OFFSETS: { | |||
3188 | F.PreprocessedEntityOffsets = (const PPEntityOffset *)Blob.data(); | |||
3189 | assert(Blob.size() % sizeof(PPEntityOffset) == 0)(static_cast <bool> (Blob.size() % sizeof(PPEntityOffset ) == 0) ? void (0) : __assert_fail ("Blob.size() % sizeof(PPEntityOffset) == 0" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3189, __extension__ __PRETTY_FUNCTION__)); | |||
3190 | F.NumPreprocessedEntities = Blob.size() / sizeof(PPEntityOffset); | |||
3191 | ||||
3192 | unsigned LocalBasePreprocessedEntityID = Record[0]; | |||
3193 | ||||
3194 | unsigned StartingID; | |||
3195 | if (!PP.getPreprocessingRecord()) | |||
3196 | PP.createPreprocessingRecord(); | |||
3197 | if (!PP.getPreprocessingRecord()->getExternalSource()) | |||
3198 | PP.getPreprocessingRecord()->SetExternalSource(*this); | |||
3199 | StartingID | |||
3200 | = PP.getPreprocessingRecord() | |||
3201 | ->allocateLoadedEntities(F.NumPreprocessedEntities); | |||
3202 | F.BasePreprocessedEntityID = StartingID; | |||
3203 | ||||
3204 | if (F.NumPreprocessedEntities > 0) { | |||
3205 | // Introduce the global -> local mapping for preprocessed entities in | |||
3206 | // this module. | |||
3207 | GlobalPreprocessedEntityMap.insert(std::make_pair(StartingID, &F)); | |||
3208 | ||||
3209 | // Introduce the local -> global mapping for preprocessed entities in | |||
3210 | // this module. | |||
3211 | F.PreprocessedEntityRemap.insertOrReplace( | |||
3212 | std::make_pair(LocalBasePreprocessedEntityID, | |||
3213 | F.BasePreprocessedEntityID - LocalBasePreprocessedEntityID)); | |||
3214 | } | |||
3215 | ||||
3216 | break; | |||
3217 | } | |||
3218 | ||||
3219 | case PPD_SKIPPED_RANGES: { | |||
3220 | F.PreprocessedSkippedRangeOffsets = (const PPSkippedRange*)Blob.data(); | |||
3221 | assert(Blob.size() % sizeof(PPSkippedRange) == 0)(static_cast <bool> (Blob.size() % sizeof(PPSkippedRange ) == 0) ? void (0) : __assert_fail ("Blob.size() % sizeof(PPSkippedRange) == 0" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3221, __extension__ __PRETTY_FUNCTION__)); | |||
3222 | F.NumPreprocessedSkippedRanges = Blob.size() / sizeof(PPSkippedRange); | |||
3223 | ||||
3224 | if (!PP.getPreprocessingRecord()) | |||
3225 | PP.createPreprocessingRecord(); | |||
3226 | if (!PP.getPreprocessingRecord()->getExternalSource()) | |||
3227 | PP.getPreprocessingRecord()->SetExternalSource(*this); | |||
3228 | F.BasePreprocessedSkippedRangeID = PP.getPreprocessingRecord() | |||
3229 | ->allocateSkippedRanges(F.NumPreprocessedSkippedRanges); | |||
3230 | ||||
3231 | if (F.NumPreprocessedSkippedRanges > 0) | |||
3232 | GlobalSkippedRangeMap.insert( | |||
3233 | std::make_pair(F.BasePreprocessedSkippedRangeID, &F)); | |||
3234 | break; | |||
3235 | } | |||
3236 | ||||
3237 | case DECL_UPDATE_OFFSETS: | |||
3238 | if (Record.size() % 2 != 0) { | |||
3239 | Error("invalid DECL_UPDATE_OFFSETS block in AST file"); | |||
3240 | return Failure; | |||
3241 | } | |||
3242 | for (unsigned I = 0, N = Record.size(); I != N; I += 2) { | |||
3243 | GlobalDeclID ID = getGlobalDeclID(F, Record[I]); | |||
3244 | DeclUpdateOffsets[ID].push_back(std::make_pair(&F, Record[I + 1])); | |||
3245 | ||||
3246 | // If we've already loaded the decl, perform the updates when we finish | |||
3247 | // loading this block. | |||
3248 | if (Decl *D = GetExistingDecl(ID)) | |||
3249 | PendingUpdateRecords.push_back( | |||
3250 | PendingUpdateRecord(ID, D, /*JustLoaded=*/false)); | |||
3251 | } | |||
3252 | break; | |||
3253 | ||||
3254 | case OBJC_CATEGORIES_MAP: | |||
3255 | if (F.LocalNumObjCCategoriesInMap != 0) { | |||
3256 | Error("duplicate OBJC_CATEGORIES_MAP record in AST file"); | |||
3257 | return Failure; | |||
3258 | } | |||
3259 | ||||
3260 | F.LocalNumObjCCategoriesInMap = Record[0]; | |||
3261 | F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)Blob.data(); | |||
3262 | break; | |||
3263 | ||||
3264 | case OBJC_CATEGORIES: | |||
3265 | F.ObjCCategories.swap(Record); | |||
3266 | break; | |||
3267 | ||||
3268 | case CUDA_SPECIAL_DECL_REFS: | |||
3269 | // Later tables overwrite earlier ones. | |||
3270 | // FIXME: Modules will have trouble with this. | |||
3271 | CUDASpecialDeclRefs.clear(); | |||
3272 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
3273 | CUDASpecialDeclRefs.push_back(getGlobalDeclID(F, Record[I])); | |||
3274 | break; | |||
3275 | ||||
3276 | case HEADER_SEARCH_TABLE: | |||
3277 | F.HeaderFileInfoTableData = Blob.data(); | |||
3278 | F.LocalNumHeaderFileInfos = Record[1]; | |||
3279 | if (Record[0]) { | |||
3280 | F.HeaderFileInfoTable | |||
3281 | = HeaderFileInfoLookupTable::Create( | |||
3282 | (const unsigned char *)F.HeaderFileInfoTableData + Record[0], | |||
3283 | (const unsigned char *)F.HeaderFileInfoTableData, | |||
3284 | HeaderFileInfoTrait(*this, F, | |||
3285 | &PP.getHeaderSearchInfo(), | |||
3286 | Blob.data() + Record[2])); | |||
3287 | ||||
3288 | PP.getHeaderSearchInfo().SetExternalSource(this); | |||
3289 | if (!PP.getHeaderSearchInfo().getExternalLookup()) | |||
3290 | PP.getHeaderSearchInfo().SetExternalLookup(this); | |||
3291 | } | |||
3292 | break; | |||
3293 | ||||
3294 | case FP_PRAGMA_OPTIONS: | |||
3295 | // Later tables overwrite earlier ones. | |||
3296 | FPPragmaOptions.swap(Record); | |||
3297 | break; | |||
3298 | ||||
3299 | case OPENCL_EXTENSIONS: | |||
3300 | for (unsigned I = 0, E = Record.size(); I != E; ) { | |||
3301 | auto Name = ReadString(Record, I); | |||
3302 | auto &Opt = OpenCLExtensions.OptMap[Name]; | |||
3303 | Opt.Supported = Record[I++] != 0; | |||
3304 | Opt.Enabled = Record[I++] != 0; | |||
3305 | Opt.Avail = Record[I++]; | |||
3306 | Opt.Core = Record[I++]; | |||
3307 | } | |||
3308 | break; | |||
3309 | ||||
3310 | case OPENCL_EXTENSION_TYPES: | |||
3311 | for (unsigned I = 0, E = Record.size(); I != E;) { | |||
3312 | auto TypeID = static_cast<::TypeID>(Record[I++]); | |||
3313 | auto *Type = GetType(TypeID).getTypePtr(); | |||
3314 | auto NumExt = static_cast<unsigned>(Record[I++]); | |||
3315 | for (unsigned II = 0; II != NumExt; ++II) { | |||
3316 | auto Ext = ReadString(Record, I); | |||
3317 | OpenCLTypeExtMap[Type].insert(Ext); | |||
3318 | } | |||
3319 | } | |||
3320 | break; | |||
3321 | ||||
3322 | case OPENCL_EXTENSION_DECLS: | |||
3323 | for (unsigned I = 0, E = Record.size(); I != E;) { | |||
3324 | auto DeclID = static_cast<::DeclID>(Record[I++]); | |||
3325 | auto *Decl = GetDecl(DeclID); | |||
3326 | auto NumExt = static_cast<unsigned>(Record[I++]); | |||
3327 | for (unsigned II = 0; II != NumExt; ++II) { | |||
3328 | auto Ext = ReadString(Record, I); | |||
3329 | OpenCLDeclExtMap[Decl].insert(Ext); | |||
3330 | } | |||
3331 | } | |||
3332 | break; | |||
3333 | ||||
3334 | case TENTATIVE_DEFINITIONS: | |||
3335 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
3336 | TentativeDefinitions.push_back(getGlobalDeclID(F, Record[I])); | |||
3337 | break; | |||
3338 | ||||
3339 | case KNOWN_NAMESPACES: | |||
3340 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
3341 | KnownNamespaces.push_back(getGlobalDeclID(F, Record[I])); | |||
3342 | break; | |||
3343 | ||||
3344 | case UNDEFINED_BUT_USED: | |||
3345 | if (UndefinedButUsed.size() % 2 != 0) { | |||
3346 | Error("Invalid existing UndefinedButUsed"); | |||
3347 | return Failure; | |||
3348 | } | |||
3349 | ||||
3350 | if (Record.size() % 2 != 0) { | |||
3351 | Error("invalid undefined-but-used record"); | |||
3352 | return Failure; | |||
3353 | } | |||
3354 | for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { | |||
3355 | UndefinedButUsed.push_back(getGlobalDeclID(F, Record[I++])); | |||
3356 | UndefinedButUsed.push_back( | |||
3357 | ReadSourceLocation(F, Record, I).getRawEncoding()); | |||
3358 | } | |||
3359 | break; | |||
3360 | ||||
3361 | case DELETE_EXPRS_TO_ANALYZE: | |||
3362 | for (unsigned I = 0, N = Record.size(); I != N;) { | |||
3363 | DelayedDeleteExprs.push_back(getGlobalDeclID(F, Record[I++])); | |||
3364 | const uint64_t Count = Record[I++]; | |||
3365 | DelayedDeleteExprs.push_back(Count); | |||
3366 | for (uint64_t C = 0; C < Count; ++C) { | |||
3367 | DelayedDeleteExprs.push_back(ReadSourceLocation(F, Record, I).getRawEncoding()); | |||
3368 | bool IsArrayForm = Record[I++] == 1; | |||
3369 | DelayedDeleteExprs.push_back(IsArrayForm); | |||
3370 | } | |||
3371 | } | |||
3372 | break; | |||
3373 | ||||
3374 | case IMPORTED_MODULES: | |||
3375 | if (!F.isModule()) { | |||
3376 | // If we aren't loading a module (which has its own exports), make | |||
3377 | // all of the imported modules visible. | |||
3378 | // FIXME: Deal with macros-only imports. | |||
3379 | for (unsigned I = 0, N = Record.size(); I != N; /**/) { | |||
3380 | unsigned GlobalID = getGlobalSubmoduleID(F, Record[I++]); | |||
3381 | SourceLocation Loc = ReadSourceLocation(F, Record, I); | |||
3382 | if (GlobalID) { | |||
3383 | ImportedModules.push_back(ImportedSubmodule(GlobalID, Loc)); | |||
3384 | if (DeserializationListener) | |||
3385 | DeserializationListener->ModuleImportRead(GlobalID, Loc); | |||
3386 | } | |||
3387 | } | |||
3388 | } | |||
3389 | break; | |||
3390 | ||||
3391 | case MACRO_OFFSET: { | |||
3392 | if (F.LocalNumMacros != 0) { | |||
3393 | Error("duplicate MACRO_OFFSET record in AST file"); | |||
3394 | return Failure; | |||
3395 | } | |||
3396 | F.MacroOffsets = (const uint32_t *)Blob.data(); | |||
3397 | F.LocalNumMacros = Record[0]; | |||
3398 | unsigned LocalBaseMacroID = Record[1]; | |||
3399 | F.BaseMacroID = getTotalNumMacros(); | |||
3400 | ||||
3401 | if (F.LocalNumMacros > 0) { | |||
3402 | // Introduce the global -> local mapping for macros within this module. | |||
3403 | GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F)); | |||
3404 | ||||
3405 | // Introduce the local -> global mapping for macros within this module. | |||
3406 | F.MacroRemap.insertOrReplace( | |||
3407 | std::make_pair(LocalBaseMacroID, | |||
3408 | F.BaseMacroID - LocalBaseMacroID)); | |||
3409 | ||||
3410 | MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros); | |||
3411 | } | |||
3412 | break; | |||
3413 | } | |||
3414 | ||||
3415 | case LATE_PARSED_TEMPLATE: | |||
3416 | LateParsedTemplates.append(Record.begin(), Record.end()); | |||
3417 | break; | |||
3418 | ||||
3419 | case OPTIMIZE_PRAGMA_OPTIONS: | |||
3420 | if (Record.size() != 1) { | |||
3421 | Error("invalid pragma optimize record"); | |||
3422 | return Failure; | |||
3423 | } | |||
3424 | OptimizeOffPragmaLocation = ReadSourceLocation(F, Record[0]); | |||
3425 | break; | |||
3426 | ||||
3427 | case MSSTRUCT_PRAGMA_OPTIONS: | |||
3428 | if (Record.size() != 1) { | |||
3429 | Error("invalid pragma ms_struct record"); | |||
3430 | return Failure; | |||
3431 | } | |||
3432 | PragmaMSStructState = Record[0]; | |||
3433 | break; | |||
3434 | ||||
3435 | case POINTERS_TO_MEMBERS_PRAGMA_OPTIONS: | |||
3436 | if (Record.size() != 2) { | |||
3437 | Error("invalid pragma ms_struct record"); | |||
3438 | return Failure; | |||
3439 | } | |||
3440 | PragmaMSPointersToMembersState = Record[0]; | |||
3441 | PointersToMembersPragmaLocation = ReadSourceLocation(F, Record[1]); | |||
3442 | break; | |||
3443 | ||||
3444 | case UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES: | |||
3445 | for (unsigned I = 0, N = Record.size(); I != N; ++I) | |||
3446 | UnusedLocalTypedefNameCandidates.push_back( | |||
3447 | getGlobalDeclID(F, Record[I])); | |||
3448 | break; | |||
3449 | ||||
3450 | case CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH: | |||
3451 | if (Record.size() != 1) { | |||
3452 | Error("invalid cuda pragma options record"); | |||
3453 | return Failure; | |||
3454 | } | |||
3455 | ForceCUDAHostDeviceDepth = Record[0]; | |||
3456 | break; | |||
3457 | ||||
3458 | case PACK_PRAGMA_OPTIONS: { | |||
3459 | if (Record.size() < 3) { | |||
3460 | Error("invalid pragma pack record"); | |||
3461 | return Failure; | |||
3462 | } | |||
3463 | PragmaPackCurrentValue = Record[0]; | |||
3464 | PragmaPackCurrentLocation = ReadSourceLocation(F, Record[1]); | |||
3465 | unsigned NumStackEntries = Record[2]; | |||
3466 | unsigned Idx = 3; | |||
3467 | // Reset the stack when importing a new module. | |||
3468 | PragmaPackStack.clear(); | |||
3469 | for (unsigned I = 0; I < NumStackEntries; ++I) { | |||
3470 | PragmaPackStackEntry Entry; | |||
3471 | Entry.Value = Record[Idx++]; | |||
3472 | Entry.Location = ReadSourceLocation(F, Record[Idx++]); | |||
3473 | Entry.PushLocation = ReadSourceLocation(F, Record[Idx++]); | |||
3474 | PragmaPackStrings.push_back(ReadString(Record, Idx)); | |||
3475 | Entry.SlotLabel = PragmaPackStrings.back(); | |||
3476 | PragmaPackStack.push_back(Entry); | |||
3477 | } | |||
3478 | break; | |||
3479 | } | |||
3480 | } | |||
3481 | } | |||
3482 | } | |||
3483 | ||||
3484 | void ASTReader::ReadModuleOffsetMap(ModuleFile &F) const { | |||
3485 | assert(!F.ModuleOffsetMap.empty() && "no module offset map to read")(static_cast <bool> (!F.ModuleOffsetMap.empty() && "no module offset map to read") ? void (0) : __assert_fail ( "!F.ModuleOffsetMap.empty() && \"no module offset map to read\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3485, __extension__ __PRETTY_FUNCTION__)); | |||
3486 | ||||
3487 | // Additional remapping information. | |||
3488 | const unsigned char *Data = (const unsigned char*)F.ModuleOffsetMap.data(); | |||
3489 | const unsigned char *DataEnd = Data + F.ModuleOffsetMap.size(); | |||
3490 | F.ModuleOffsetMap = StringRef(); | |||
3491 | ||||
3492 | // If we see this entry before SOURCE_LOCATION_OFFSETS, add placeholders. | |||
3493 | if (F.SLocRemap.find(0) == F.SLocRemap.end()) { | |||
3494 | F.SLocRemap.insert(std::make_pair(0U, 0)); | |||
3495 | F.SLocRemap.insert(std::make_pair(2U, 1)); | |||
3496 | } | |||
3497 | ||||
3498 | // Continuous range maps we may be updating in our module. | |||
3499 | using RemapBuilder = ContinuousRangeMap<uint32_t, int, 2>::Builder; | |||
3500 | RemapBuilder SLocRemap(F.SLocRemap); | |||
3501 | RemapBuilder IdentifierRemap(F.IdentifierRemap); | |||
3502 | RemapBuilder MacroRemap(F.MacroRemap); | |||
3503 | RemapBuilder PreprocessedEntityRemap(F.PreprocessedEntityRemap); | |||
3504 | RemapBuilder SubmoduleRemap(F.SubmoduleRemap); | |||
3505 | RemapBuilder SelectorRemap(F.SelectorRemap); | |||
3506 | RemapBuilder DeclRemap(F.DeclRemap); | |||
3507 | RemapBuilder TypeRemap(F.TypeRemap); | |||
3508 | ||||
3509 | while (Data < DataEnd) { | |||
3510 | // FIXME: Looking up dependency modules by filename is horrible. Let's | |||
3511 | // start fixing this with prebuilt and explicit modules and see how it | |||
3512 | // goes... | |||
3513 | using namespace llvm::support; | |||
3514 | ModuleKind Kind = static_cast<ModuleKind>( | |||
3515 | endian::readNext<uint8_t, little, unaligned>(Data)); | |||
3516 | uint16_t Len = endian::readNext<uint16_t, little, unaligned>(Data); | |||
3517 | StringRef Name = StringRef((const char*)Data, Len); | |||
3518 | Data += Len; | |||
3519 | ModuleFile *OM = (Kind == MK_PrebuiltModule || Kind == MK_ExplicitModule | |||
3520 | ? ModuleMgr.lookupByModuleName(Name) | |||
3521 | : ModuleMgr.lookupByFileName(Name)); | |||
3522 | if (!OM) { | |||
3523 | std::string Msg = | |||
3524 | "SourceLocation remap refers to unknown module, cannot find "; | |||
3525 | Msg.append(Name); | |||
3526 | Error(Msg); | |||
3527 | return; | |||
3528 | } | |||
3529 | ||||
3530 | uint32_t SLocOffset = | |||
3531 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3532 | uint32_t IdentifierIDOffset = | |||
3533 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3534 | uint32_t MacroIDOffset = | |||
3535 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3536 | uint32_t PreprocessedEntityIDOffset = | |||
3537 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3538 | uint32_t SubmoduleIDOffset = | |||
3539 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3540 | uint32_t SelectorIDOffset = | |||
3541 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3542 | uint32_t DeclIDOffset = | |||
3543 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3544 | uint32_t TypeIndexOffset = | |||
3545 | endian::readNext<uint32_t, little, unaligned>(Data); | |||
3546 | ||||
3547 | uint32_t None = std::numeric_limits<uint32_t>::max(); | |||
3548 | ||||
3549 | auto mapOffset = [&](uint32_t Offset, uint32_t BaseOffset, | |||
3550 | RemapBuilder &Remap) { | |||
3551 | if (Offset != None) | |||
3552 | Remap.insert(std::make_pair(Offset, | |||
3553 | static_cast<int>(BaseOffset - Offset))); | |||
3554 | }; | |||
3555 | mapOffset(SLocOffset, OM->SLocEntryBaseOffset, SLocRemap); | |||
3556 | mapOffset(IdentifierIDOffset, OM->BaseIdentifierID, IdentifierRemap); | |||
3557 | mapOffset(MacroIDOffset, OM->BaseMacroID, MacroRemap); | |||
3558 | mapOffset(PreprocessedEntityIDOffset, OM->BasePreprocessedEntityID, | |||
3559 | PreprocessedEntityRemap); | |||
3560 | mapOffset(SubmoduleIDOffset, OM->BaseSubmoduleID, SubmoduleRemap); | |||
3561 | mapOffset(SelectorIDOffset, OM->BaseSelectorID, SelectorRemap); | |||
3562 | mapOffset(DeclIDOffset, OM->BaseDeclID, DeclRemap); | |||
3563 | mapOffset(TypeIndexOffset, OM->BaseTypeIndex, TypeRemap); | |||
3564 | ||||
3565 | // Global -> local mappings. | |||
3566 | F.GlobalToLocalDeclIDs[OM] = DeclIDOffset; | |||
3567 | } | |||
3568 | } | |||
3569 | ||||
3570 | ASTReader::ASTReadResult | |||
3571 | ASTReader::ReadModuleMapFileBlock(RecordData &Record, ModuleFile &F, | |||
3572 | const ModuleFile *ImportedBy, | |||
3573 | unsigned ClientLoadCapabilities) { | |||
3574 | unsigned Idx = 0; | |||
3575 | F.ModuleMapPath = ReadPath(F, Record, Idx); | |||
3576 | ||||
3577 | // Try to resolve ModuleName in the current header search context and | |||
3578 | // verify that it is found in the same module map file as we saved. If the | |||
3579 | // top-level AST file is a main file, skip this check because there is no | |||
3580 | // usable header search context. | |||
3581 | assert(!F.ModuleName.empty() &&(static_cast <bool> (!F.ModuleName.empty() && "MODULE_NAME should come before MODULE_MAP_FILE" ) ? void (0) : __assert_fail ("!F.ModuleName.empty() && \"MODULE_NAME should come before MODULE_MAP_FILE\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3582, __extension__ __PRETTY_FUNCTION__)) | |||
3582 | "MODULE_NAME should come before MODULE_MAP_FILE")(static_cast <bool> (!F.ModuleName.empty() && "MODULE_NAME should come before MODULE_MAP_FILE" ) ? void (0) : __assert_fail ("!F.ModuleName.empty() && \"MODULE_NAME should come before MODULE_MAP_FILE\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3582, __extension__ __PRETTY_FUNCTION__)); | |||
3583 | if (F.Kind == MK_ImplicitModule && ModuleMgr.begin()->Kind != MK_MainFile) { | |||
3584 | // An implicitly-loaded module file should have its module listed in some | |||
3585 | // module map file that we've already loaded. | |||
3586 | Module *M = PP.getHeaderSearchInfo().lookupModule(F.ModuleName); | |||
3587 | auto &Map = PP.getHeaderSearchInfo().getModuleMap(); | |||
3588 | const FileEntry *ModMap = M ? Map.getModuleMapFileForUniquing(M) : nullptr; | |||
3589 | if (!ModMap) { | |||
3590 | assert(ImportedBy && "top-level import should be verified")(static_cast <bool> (ImportedBy && "top-level import should be verified" ) ? void (0) : __assert_fail ("ImportedBy && \"top-level import should be verified\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3590, __extension__ __PRETTY_FUNCTION__)); | |||
3591 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) { | |||
3592 | if (auto *ASTFE = M ? M->getASTFile() : nullptr) { | |||
3593 | // This module was defined by an imported (explicit) module. | |||
3594 | Diag(diag::err_module_file_conflict) << F.ModuleName << F.FileName | |||
3595 | << ASTFE->getName(); | |||
3596 | } else { | |||
3597 | // This module was built with a different module map. | |||
3598 | Diag(diag::err_imported_module_not_found) | |||
3599 | << F.ModuleName << F.FileName << ImportedBy->FileName | |||
3600 | << F.ModuleMapPath; | |||
3601 | // In case it was imported by a PCH, there's a chance the user is | |||
3602 | // just missing to include the search path to the directory containing | |||
3603 | // the modulemap. | |||
3604 | if (ImportedBy->Kind == MK_PCH) | |||
3605 | Diag(diag::note_imported_by_pch_module_not_found) | |||
3606 | << llvm::sys::path::parent_path(F.ModuleMapPath); | |||
3607 | } | |||
3608 | } | |||
3609 | return OutOfDate; | |||
3610 | } | |||
3611 | ||||
3612 | assert(M->Name == F.ModuleName && "found module with different name")(static_cast <bool> (M->Name == F.ModuleName && "found module with different name") ? void (0) : __assert_fail ("M->Name == F.ModuleName && \"found module with different name\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3612, __extension__ __PRETTY_FUNCTION__)); | |||
3613 | ||||
3614 | // Check the primary module map file. | |||
3615 | const FileEntry *StoredModMap = FileMgr.getFile(F.ModuleMapPath); | |||
3616 | if (StoredModMap == nullptr || StoredModMap != ModMap) { | |||
3617 | assert(ModMap && "found module is missing module map file")(static_cast <bool> (ModMap && "found module is missing module map file" ) ? void (0) : __assert_fail ("ModMap && \"found module is missing module map file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3617, __extension__ __PRETTY_FUNCTION__)); | |||
3618 | assert(ImportedBy && "top-level import should be verified")(static_cast <bool> (ImportedBy && "top-level import should be verified" ) ? void (0) : __assert_fail ("ImportedBy && \"top-level import should be verified\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3618, __extension__ __PRETTY_FUNCTION__)); | |||
3619 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
3620 | Diag(diag::err_imported_module_modmap_changed) | |||
3621 | << F.ModuleName << ImportedBy->FileName | |||
3622 | << ModMap->getName() << F.ModuleMapPath; | |||
3623 | return OutOfDate; | |||
3624 | } | |||
3625 | ||||
3626 | llvm::SmallPtrSet<const FileEntry *, 1> AdditionalStoredMaps; | |||
3627 | for (unsigned I = 0, N = Record[Idx++]; I < N; ++I) { | |||
3628 | // FIXME: we should use input files rather than storing names. | |||
3629 | std::string Filename = ReadPath(F, Record, Idx); | |||
3630 | const FileEntry *F = | |||
3631 | FileMgr.getFile(Filename, false, false); | |||
3632 | if (F == nullptr) { | |||
3633 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
3634 | Error("could not find file '" + Filename +"' referenced by AST file"); | |||
3635 | return OutOfDate; | |||
3636 | } | |||
3637 | AdditionalStoredMaps.insert(F); | |||
3638 | } | |||
3639 | ||||
3640 | // Check any additional module map files (e.g. module.private.modulemap) | |||
3641 | // that are not in the pcm. | |||
3642 | if (auto *AdditionalModuleMaps = Map.getAdditionalModuleMapFiles(M)) { | |||
3643 | for (const FileEntry *ModMap : *AdditionalModuleMaps) { | |||
3644 | // Remove files that match | |||
3645 | // Note: SmallPtrSet::erase is really remove | |||
3646 | if (!AdditionalStoredMaps.erase(ModMap)) { | |||
3647 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
3648 | Diag(diag::err_module_different_modmap) | |||
3649 | << F.ModuleName << /*new*/0 << ModMap->getName(); | |||
3650 | return OutOfDate; | |||
3651 | } | |||
3652 | } | |||
3653 | } | |||
3654 | ||||
3655 | // Check any additional module map files that are in the pcm, but not | |||
3656 | // found in header search. Cases that match are already removed. | |||
3657 | for (const FileEntry *ModMap : AdditionalStoredMaps) { | |||
3658 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
3659 | Diag(diag::err_module_different_modmap) | |||
3660 | << F.ModuleName << /*not new*/1 << ModMap->getName(); | |||
3661 | return OutOfDate; | |||
3662 | } | |||
3663 | } | |||
3664 | ||||
3665 | if (Listener) | |||
3666 | Listener->ReadModuleMapFile(F.ModuleMapPath); | |||
3667 | return Success; | |||
3668 | } | |||
3669 | ||||
3670 | /// \brief Move the given method to the back of the global list of methods. | |||
3671 | static void moveMethodToBackOfGlobalList(Sema &S, ObjCMethodDecl *Method) { | |||
3672 | // Find the entry for this selector in the method pool. | |||
3673 | Sema::GlobalMethodPool::iterator Known | |||
3674 | = S.MethodPool.find(Method->getSelector()); | |||
3675 | if (Known == S.MethodPool.end()) | |||
3676 | return; | |||
3677 | ||||
3678 | // Retrieve the appropriate method list. | |||
3679 | ObjCMethodList &Start = Method->isInstanceMethod()? Known->second.first | |||
3680 | : Known->second.second; | |||
3681 | bool Found = false; | |||
3682 | for (ObjCMethodList *List = &Start; List; List = List->getNext()) { | |||
3683 | if (!Found) { | |||
3684 | if (List->getMethod() == Method) { | |||
3685 | Found = true; | |||
3686 | } else { | |||
3687 | // Keep searching. | |||
3688 | continue; | |||
3689 | } | |||
3690 | } | |||
3691 | ||||
3692 | if (List->getNext()) | |||
3693 | List->setMethod(List->getNext()->getMethod()); | |||
3694 | else | |||
3695 | List->setMethod(Method); | |||
3696 | } | |||
3697 | } | |||
3698 | ||||
3699 | void ASTReader::makeNamesVisible(const HiddenNames &Names, Module *Owner) { | |||
3700 | assert(Owner->NameVisibility != Module::Hidden && "nothing to make visible?")(static_cast <bool> (Owner->NameVisibility != Module ::Hidden && "nothing to make visible?") ? void (0) : __assert_fail ("Owner->NameVisibility != Module::Hidden && \"nothing to make visible?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3700, __extension__ __PRETTY_FUNCTION__)); | |||
3701 | for (Decl *D : Names) { | |||
3702 | bool wasHidden = D->isHidden(); | |||
3703 | D->setVisibleDespiteOwningModule(); | |||
3704 | ||||
3705 | if (wasHidden && SemaObj) { | |||
3706 | if (ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(D)) { | |||
3707 | moveMethodToBackOfGlobalList(*SemaObj, Method); | |||
3708 | } | |||
3709 | } | |||
3710 | } | |||
3711 | } | |||
3712 | ||||
3713 | void ASTReader::makeModuleVisible(Module *Mod, | |||
3714 | Module::NameVisibilityKind NameVisibility, | |||
3715 | SourceLocation ImportLoc) { | |||
3716 | llvm::SmallPtrSet<Module *, 4> Visited; | |||
3717 | SmallVector<Module *, 4> Stack; | |||
3718 | Stack.push_back(Mod); | |||
3719 | while (!Stack.empty()) { | |||
3720 | Mod = Stack.pop_back_val(); | |||
3721 | ||||
3722 | if (NameVisibility <= Mod->NameVisibility) { | |||
3723 | // This module already has this level of visibility (or greater), so | |||
3724 | // there is nothing more to do. | |||
3725 | continue; | |||
3726 | } | |||
3727 | ||||
3728 | if (!Mod->isAvailable()) { | |||
3729 | // Modules that aren't available cannot be made visible. | |||
3730 | continue; | |||
3731 | } | |||
3732 | ||||
3733 | // Update the module's name visibility. | |||
3734 | Mod->NameVisibility = NameVisibility; | |||
3735 | ||||
3736 | // If we've already deserialized any names from this module, | |||
3737 | // mark them as visible. | |||
3738 | HiddenNamesMapType::iterator Hidden = HiddenNamesMap.find(Mod); | |||
3739 | if (Hidden != HiddenNamesMap.end()) { | |||
3740 | auto HiddenNames = std::move(*Hidden); | |||
3741 | HiddenNamesMap.erase(Hidden); | |||
3742 | makeNamesVisible(HiddenNames.second, HiddenNames.first); | |||
3743 | assert(HiddenNamesMap.find(Mod) == HiddenNamesMap.end() &&(static_cast <bool> (HiddenNamesMap.find(Mod) == HiddenNamesMap .end() && "making names visible added hidden names") ? void (0) : __assert_fail ("HiddenNamesMap.find(Mod) == HiddenNamesMap.end() && \"making names visible added hidden names\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3744, __extension__ __PRETTY_FUNCTION__)) | |||
3744 | "making names visible added hidden names")(static_cast <bool> (HiddenNamesMap.find(Mod) == HiddenNamesMap .end() && "making names visible added hidden names") ? void (0) : __assert_fail ("HiddenNamesMap.find(Mod) == HiddenNamesMap.end() && \"making names visible added hidden names\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3744, __extension__ __PRETTY_FUNCTION__)); | |||
3745 | } | |||
3746 | ||||
3747 | // Push any exported modules onto the stack to be marked as visible. | |||
3748 | SmallVector<Module *, 16> Exports; | |||
3749 | Mod->getExportedModules(Exports); | |||
3750 | for (SmallVectorImpl<Module *>::iterator | |||
3751 | I = Exports.begin(), E = Exports.end(); I != E; ++I) { | |||
3752 | Module *Exported = *I; | |||
3753 | if (Visited.insert(Exported).second) | |||
3754 | Stack.push_back(Exported); | |||
3755 | } | |||
3756 | } | |||
3757 | } | |||
3758 | ||||
3759 | /// We've merged the definition \p MergedDef into the existing definition | |||
3760 | /// \p Def. Ensure that \p Def is made visible whenever \p MergedDef is made | |||
3761 | /// visible. | |||
3762 | void ASTReader::mergeDefinitionVisibility(NamedDecl *Def, | |||
3763 | NamedDecl *MergedDef) { | |||
3764 | // FIXME: This doesn't correctly handle the case where MergedDef is visible | |||
3765 | // in modules other than its owning module. We should instead give the | |||
3766 | // ASTContext a list of merged definitions for Def. | |||
3767 | if (Def->isHidden()) { | |||
3768 | // If MergedDef is visible or becomes visible, make the definition visible. | |||
3769 | if (!MergedDef->isHidden()) | |||
3770 | Def->setVisibleDespiteOwningModule(); | |||
3771 | else if (getContext().getLangOpts().ModulesLocalVisibility) { | |||
3772 | getContext().mergeDefinitionIntoModule( | |||
3773 | Def, MergedDef->getImportedOwningModule(), | |||
3774 | /*NotifyListeners*/ false); | |||
3775 | PendingMergedDefinitionsToDeduplicate.insert(Def); | |||
3776 | } else { | |||
3777 | auto SubmoduleID = MergedDef->getOwningModuleID(); | |||
3778 | assert(SubmoduleID && "hidden definition in no module")(static_cast <bool> (SubmoduleID && "hidden definition in no module" ) ? void (0) : __assert_fail ("SubmoduleID && \"hidden definition in no module\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 3778, __extension__ __PRETTY_FUNCTION__)); | |||
3779 | HiddenNamesMap[getSubmodule(SubmoduleID)].push_back(Def); | |||
3780 | } | |||
3781 | } | |||
3782 | } | |||
3783 | ||||
3784 | bool ASTReader::loadGlobalIndex() { | |||
3785 | if (GlobalIndex) | |||
3786 | return false; | |||
3787 | ||||
3788 | if (TriedLoadingGlobalIndex || !UseGlobalIndex || | |||
3789 | !PP.getLangOpts().Modules) | |||
3790 | return true; | |||
3791 | ||||
3792 | // Try to load the global index. | |||
3793 | TriedLoadingGlobalIndex = true; | |||
3794 | StringRef ModuleCachePath | |||
3795 | = getPreprocessor().getHeaderSearchInfo().getModuleCachePath(); | |||
3796 | std::pair<GlobalModuleIndex *, GlobalModuleIndex::ErrorCode> Result | |||
3797 | = GlobalModuleIndex::readIndex(ModuleCachePath); | |||
3798 | if (!Result.first) | |||
3799 | return true; | |||
3800 | ||||
3801 | GlobalIndex.reset(Result.first); | |||
3802 | ModuleMgr.setGlobalIndex(GlobalIndex.get()); | |||
3803 | return false; | |||
3804 | } | |||
3805 | ||||
3806 | bool ASTReader::isGlobalIndexUnavailable() const { | |||
3807 | return PP.getLangOpts().Modules && UseGlobalIndex && | |||
3808 | !hasGlobalIndex() && TriedLoadingGlobalIndex; | |||
3809 | } | |||
3810 | ||||
3811 | static void updateModuleTimestamp(ModuleFile &MF) { | |||
3812 | // Overwrite the timestamp file contents so that file's mtime changes. | |||
3813 | std::string TimestampFilename = MF.getTimestampFilename(); | |||
3814 | std::error_code EC; | |||
3815 | llvm::raw_fd_ostream OS(TimestampFilename, EC, llvm::sys::fs::F_Text); | |||
3816 | if (EC) | |||
3817 | return; | |||
3818 | OS << "Timestamp file\n"; | |||
3819 | OS.close(); | |||
3820 | OS.clear_error(); // Avoid triggering a fatal error. | |||
3821 | } | |||
3822 | ||||
3823 | /// \brief Given a cursor at the start of an AST file, scan ahead and drop the | |||
3824 | /// cursor into the start of the given block ID, returning false on success and | |||
3825 | /// true on failure. | |||
3826 | static bool SkipCursorToBlock(BitstreamCursor &Cursor, unsigned BlockID) { | |||
3827 | while (true) { | |||
3828 | llvm::BitstreamEntry Entry = Cursor.advance(); | |||
3829 | switch (Entry.Kind) { | |||
3830 | case llvm::BitstreamEntry::Error: | |||
3831 | case llvm::BitstreamEntry::EndBlock: | |||
3832 | return true; | |||
3833 | ||||
3834 | case llvm::BitstreamEntry::Record: | |||
3835 | // Ignore top-level records. | |||
3836 | Cursor.skipRecord(Entry.ID); | |||
3837 | break; | |||
3838 | ||||
3839 | case llvm::BitstreamEntry::SubBlock: | |||
3840 | if (Entry.ID == BlockID) { | |||
3841 | if (Cursor.EnterSubBlock(BlockID)) | |||
3842 | return true; | |||
3843 | // Found it! | |||
3844 | return false; | |||
3845 | } | |||
3846 | ||||
3847 | if (Cursor.SkipBlock()) | |||
3848 | return true; | |||
3849 | } | |||
3850 | } | |||
3851 | } | |||
3852 | ||||
3853 | ASTReader::ASTReadResult ASTReader::ReadAST(StringRef FileName, | |||
3854 | ModuleKind Type, | |||
3855 | SourceLocation ImportLoc, | |||
3856 | unsigned ClientLoadCapabilities, | |||
3857 | SmallVectorImpl<ImportedSubmodule> *Imported) { | |||
3858 | llvm::SaveAndRestore<SourceLocation> | |||
3859 | SetCurImportLocRAII(CurrentImportLoc, ImportLoc); | |||
3860 | ||||
3861 | // Defer any pending actions until we get to the end of reading the AST file. | |||
3862 | Deserializing AnASTFile(this); | |||
3863 | ||||
3864 | // Bump the generation number. | |||
3865 | unsigned PreviousGeneration = 0; | |||
3866 | if (ContextObj) | |||
3867 | PreviousGeneration = incrementGeneration(*ContextObj); | |||
3868 | ||||
3869 | unsigned NumModules = ModuleMgr.size(); | |||
3870 | SmallVector<ImportedModule, 4> Loaded; | |||
3871 | switch (ASTReadResult ReadResult = | |||
3872 | ReadASTCore(FileName, Type, ImportLoc, | |||
3873 | /*ImportedBy=*/nullptr, Loaded, 0, 0, | |||
3874 | ASTFileSignature(), ClientLoadCapabilities)) { | |||
3875 | case Failure: | |||
3876 | case Missing: | |||
3877 | case OutOfDate: | |||
3878 | case VersionMismatch: | |||
3879 | case ConfigurationMismatch: | |||
3880 | case HadErrors: { | |||
3881 | llvm::SmallPtrSet<ModuleFile *, 4> LoadedSet; | |||
3882 | for (const ImportedModule &IM : Loaded) | |||
3883 | LoadedSet.insert(IM.Mod); | |||
3884 | ||||
3885 | ModuleMgr.removeModules(ModuleMgr.begin() + NumModules, LoadedSet, | |||
3886 | PP.getLangOpts().Modules | |||
3887 | ? &PP.getHeaderSearchInfo().getModuleMap() | |||
3888 | : nullptr); | |||
3889 | ||||
3890 | // If we find that any modules are unusable, the global index is going | |||
3891 | // to be out-of-date. Just remove it. | |||
3892 | GlobalIndex.reset(); | |||
3893 | ModuleMgr.setGlobalIndex(nullptr); | |||
3894 | return ReadResult; | |||
3895 | } | |||
3896 | case Success: | |||
3897 | break; | |||
3898 | } | |||
3899 | ||||
3900 | // Here comes stuff that we only do once the entire chain is loaded. | |||
3901 | ||||
3902 | // Load the AST blocks of all of the modules that we loaded. | |||
3903 | for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(), | |||
3904 | MEnd = Loaded.end(); | |||
3905 | M != MEnd; ++M) { | |||
3906 | ModuleFile &F = *M->Mod; | |||
3907 | ||||
3908 | // Read the AST block. | |||
3909 | if (ASTReadResult Result = ReadASTBlock(F, ClientLoadCapabilities)) | |||
3910 | return Result; | |||
3911 | ||||
3912 | // Read the extension blocks. | |||
3913 | while (!SkipCursorToBlock(F.Stream, EXTENSION_BLOCK_ID)) { | |||
3914 | if (ASTReadResult Result = ReadExtensionBlock(F)) | |||
3915 | return Result; | |||
3916 | } | |||
3917 | ||||
3918 | // Once read, set the ModuleFile bit base offset and update the size in | |||
3919 | // bits of all files we've seen. | |||
3920 | F.GlobalBitOffset = TotalModulesSizeInBits; | |||
3921 | TotalModulesSizeInBits += F.SizeInBits; | |||
3922 | GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F)); | |||
3923 | ||||
3924 | // Preload SLocEntries. | |||
3925 | for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) { | |||
3926 | int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID; | |||
3927 | // Load it through the SourceManager and don't call ReadSLocEntry() | |||
3928 | // directly because the entry may have already been loaded in which case | |||
3929 | // calling ReadSLocEntry() directly would trigger an assertion in | |||
3930 | // SourceManager. | |||
3931 | SourceMgr.getLoadedSLocEntryByID(Index); | |||
3932 | } | |||
3933 | ||||
3934 | // Map the original source file ID into the ID space of the current | |||
3935 | // compilation. | |||
3936 | if (F.OriginalSourceFileID.isValid()) { | |||
3937 | F.OriginalSourceFileID = FileID::get( | |||
3938 | F.SLocEntryBaseID + F.OriginalSourceFileID.getOpaqueValue() - 1); | |||
3939 | } | |||
3940 | ||||
3941 | // Preload all the pending interesting identifiers by marking them out of | |||
3942 | // date. | |||
3943 | for (auto Offset : F.PreloadIdentifierOffsets) { | |||
3944 | const unsigned char *Data = reinterpret_cast<const unsigned char *>( | |||
3945 | F.IdentifierTableData + Offset); | |||
3946 | ||||
3947 | ASTIdentifierLookupTrait Trait(*this, F); | |||
3948 | auto KeyDataLen = Trait.ReadKeyDataLength(Data); | |||
3949 | auto Key = Trait.ReadKey(Data, KeyDataLen.first); | |||
3950 | auto &II = PP.getIdentifierTable().getOwn(Key); | |||
3951 | II.setOutOfDate(true); | |||
3952 | ||||
3953 | // Mark this identifier as being from an AST file so that we can track | |||
3954 | // whether we need to serialize it. | |||
3955 | markIdentifierFromAST(*this, II); | |||
3956 | ||||
3957 | // Associate the ID with the identifier so that the writer can reuse it. | |||
3958 | auto ID = Trait.ReadIdentifierID(Data + KeyDataLen.first); | |||
3959 | SetIdentifierInfo(ID, &II); | |||
3960 | } | |||
3961 | } | |||
3962 | ||||
3963 | // Setup the import locations and notify the module manager that we've | |||
3964 | // committed to these module files. | |||
3965 | for (SmallVectorImpl<ImportedModule>::iterator M = Loaded.begin(), | |||
3966 | MEnd = Loaded.end(); | |||
3967 | M != MEnd; ++M) { | |||
3968 | ModuleFile &F = *M->Mod; | |||
3969 | ||||
3970 | ModuleMgr.moduleFileAccepted(&F); | |||
3971 | ||||
3972 | // Set the import location. | |||
3973 | F.DirectImportLoc = ImportLoc; | |||
3974 | // FIXME: We assume that locations from PCH / preamble do not need | |||
3975 | // any translation. | |||
3976 | if (!M->ImportedBy) | |||
3977 | F.ImportLoc = M->ImportLoc; | |||
3978 | else | |||
3979 | F.ImportLoc = TranslateSourceLocation(*M->ImportedBy, M->ImportLoc); | |||
3980 | } | |||
3981 | ||||
3982 | if (!PP.getLangOpts().CPlusPlus || | |||
3983 | (Type != MK_ImplicitModule && Type != MK_ExplicitModule && | |||
3984 | Type != MK_PrebuiltModule)) { | |||
3985 | // Mark all of the identifiers in the identifier table as being out of date, | |||
3986 | // so that various accessors know to check the loaded modules when the | |||
3987 | // identifier is used. | |||
3988 | // | |||
3989 | // For C++ modules, we don't need information on many identifiers (just | |||
3990 | // those that provide macros or are poisoned), so we mark all of | |||
3991 | // the interesting ones via PreloadIdentifierOffsets. | |||
3992 | for (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(), | |||
3993 | IdEnd = PP.getIdentifierTable().end(); | |||
3994 | Id != IdEnd; ++Id) | |||
3995 | Id->second->setOutOfDate(true); | |||
3996 | } | |||
3997 | // Mark selectors as out of date. | |||
3998 | for (auto Sel : SelectorGeneration) | |||
3999 | SelectorOutOfDate[Sel.first] = true; | |||
4000 | ||||
4001 | // Resolve any unresolved module exports. | |||
4002 | for (unsigned I = 0, N = UnresolvedModuleRefs.size(); I != N; ++I) { | |||
4003 | UnresolvedModuleRef &Unresolved = UnresolvedModuleRefs[I]; | |||
4004 | SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID); | |||
4005 | Module *ResolvedMod = getSubmodule(GlobalID); | |||
4006 | ||||
4007 | switch (Unresolved.Kind) { | |||
4008 | case UnresolvedModuleRef::Conflict: | |||
4009 | if (ResolvedMod) { | |||
4010 | Module::Conflict Conflict; | |||
4011 | Conflict.Other = ResolvedMod; | |||
4012 | Conflict.Message = Unresolved.String.str(); | |||
4013 | Unresolved.Mod->Conflicts.push_back(Conflict); | |||
4014 | } | |||
4015 | continue; | |||
4016 | ||||
4017 | case UnresolvedModuleRef::Import: | |||
4018 | if (ResolvedMod) | |||
4019 | Unresolved.Mod->Imports.insert(ResolvedMod); | |||
4020 | continue; | |||
4021 | ||||
4022 | case UnresolvedModuleRef::Export: | |||
4023 | if (ResolvedMod || Unresolved.IsWildcard) | |||
4024 | Unresolved.Mod->Exports.push_back( | |||
4025 | Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard)); | |||
4026 | continue; | |||
4027 | } | |||
4028 | } | |||
4029 | UnresolvedModuleRefs.clear(); | |||
4030 | ||||
4031 | if (Imported) | |||
4032 | Imported->append(ImportedModules.begin(), | |||
4033 | ImportedModules.end()); | |||
4034 | ||||
4035 | // FIXME: How do we load the 'use'd modules? They may not be submodules. | |||
4036 | // Might be unnecessary as use declarations are only used to build the | |||
4037 | // module itself. | |||
4038 | ||||
4039 | if (ContextObj) | |||
4040 | InitializeContext(); | |||
4041 | ||||
4042 | if (SemaObj) | |||
4043 | UpdateSema(); | |||
4044 | ||||
4045 | if (DeserializationListener) | |||
4046 | DeserializationListener->ReaderInitialized(this); | |||
4047 | ||||
4048 | ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule(); | |||
4049 | if (PrimaryModule.OriginalSourceFileID.isValid()) { | |||
4050 | // If this AST file is a precompiled preamble, then set the | |||
4051 | // preamble file ID of the source manager to the file source file | |||
4052 | // from which the preamble was built. | |||
4053 | if (Type == MK_Preamble) { | |||
4054 | SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID); | |||
4055 | } else if (Type == MK_MainFile) { | |||
4056 | SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID); | |||
4057 | } | |||
4058 | } | |||
4059 | ||||
4060 | // For any Objective-C class definitions we have already loaded, make sure | |||
4061 | // that we load any additional categories. | |||
4062 | if (ContextObj) { | |||
4063 | for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) { | |||
4064 | loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(), | |||
4065 | ObjCClassesLoaded[I], | |||
4066 | PreviousGeneration); | |||
4067 | } | |||
4068 | } | |||
4069 | ||||
4070 | if (PP.getHeaderSearchInfo() | |||
4071 | .getHeaderSearchOpts() | |||
4072 | .ModulesValidateOncePerBuildSession) { | |||
4073 | // Now we are certain that the module and all modules it depends on are | |||
4074 | // up to date. Create or update timestamp files for modules that are | |||
4075 | // located in the module cache (not for PCH files that could be anywhere | |||
4076 | // in the filesystem). | |||
4077 | for (unsigned I = 0, N = Loaded.size(); I != N; ++I) { | |||
4078 | ImportedModule &M = Loaded[I]; | |||
4079 | if (M.Mod->Kind == MK_ImplicitModule) { | |||
4080 | updateModuleTimestamp(*M.Mod); | |||
4081 | } | |||
4082 | } | |||
4083 | } | |||
4084 | ||||
4085 | return Success; | |||
4086 | } | |||
4087 | ||||
4088 | static ASTFileSignature readASTFileSignature(StringRef PCH); | |||
4089 | ||||
4090 | /// \brief Whether \p Stream starts with the AST/PCH file magic number 'CPCH'. | |||
4091 | static bool startsWithASTFileMagic(BitstreamCursor &Stream) { | |||
4092 | return Stream.canSkipToPos(4) && | |||
4093 | Stream.Read(8) == 'C' && | |||
4094 | Stream.Read(8) == 'P' && | |||
4095 | Stream.Read(8) == 'C' && | |||
4096 | Stream.Read(8) == 'H'; | |||
4097 | } | |||
4098 | ||||
4099 | static unsigned moduleKindForDiagnostic(ModuleKind Kind) { | |||
4100 | switch (Kind) { | |||
4101 | case MK_PCH: | |||
4102 | return 0; // PCH | |||
4103 | case MK_ImplicitModule: | |||
4104 | case MK_ExplicitModule: | |||
4105 | case MK_PrebuiltModule: | |||
4106 | return 1; // module | |||
4107 | case MK_MainFile: | |||
4108 | case MK_Preamble: | |||
4109 | return 2; // main source file | |||
4110 | } | |||
4111 | llvm_unreachable("unknown module kind")::llvm::llvm_unreachable_internal("unknown module kind", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 4111); | |||
4112 | } | |||
4113 | ||||
4114 | ASTReader::ASTReadResult | |||
4115 | ASTReader::ReadASTCore(StringRef FileName, | |||
4116 | ModuleKind Type, | |||
4117 | SourceLocation ImportLoc, | |||
4118 | ModuleFile *ImportedBy, | |||
4119 | SmallVectorImpl<ImportedModule> &Loaded, | |||
4120 | off_t ExpectedSize, time_t ExpectedModTime, | |||
4121 | ASTFileSignature ExpectedSignature, | |||
4122 | unsigned ClientLoadCapabilities) { | |||
4123 | ModuleFile *M; | |||
4124 | std::string ErrorStr; | |||
4125 | ModuleManager::AddModuleResult AddResult | |||
4126 | = ModuleMgr.addModule(FileName, Type, ImportLoc, ImportedBy, | |||
4127 | getGeneration(), ExpectedSize, ExpectedModTime, | |||
4128 | ExpectedSignature, readASTFileSignature, | |||
4129 | M, ErrorStr); | |||
4130 | ||||
4131 | switch (AddResult) { | |||
4132 | case ModuleManager::AlreadyLoaded: | |||
4133 | return Success; | |||
4134 | ||||
4135 | case ModuleManager::NewlyLoaded: | |||
4136 | // Load module file below. | |||
4137 | break; | |||
4138 | ||||
4139 | case ModuleManager::Missing: | |||
4140 | // The module file was missing; if the client can handle that, return | |||
4141 | // it. | |||
4142 | if (ClientLoadCapabilities & ARR_Missing) | |||
4143 | return Missing; | |||
4144 | ||||
4145 | // Otherwise, return an error. | |||
4146 | Diag(diag::err_module_file_not_found) << moduleKindForDiagnostic(Type) | |||
4147 | << FileName << !ErrorStr.empty() | |||
4148 | << ErrorStr; | |||
4149 | return Failure; | |||
4150 | ||||
4151 | case ModuleManager::OutOfDate: | |||
4152 | // We couldn't load the module file because it is out-of-date. If the | |||
4153 | // client can handle out-of-date, return it. | |||
4154 | if (ClientLoadCapabilities & ARR_OutOfDate) | |||
4155 | return OutOfDate; | |||
4156 | ||||
4157 | // Otherwise, return an error. | |||
4158 | Diag(diag::err_module_file_out_of_date) << moduleKindForDiagnostic(Type) | |||
4159 | << FileName << !ErrorStr.empty() | |||
4160 | << ErrorStr; | |||
4161 | return Failure; | |||
4162 | } | |||
4163 | ||||
4164 | assert(M && "Missing module file")(static_cast <bool> (M && "Missing module file" ) ? void (0) : __assert_fail ("M && \"Missing module file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 4164, __extension__ __PRETTY_FUNCTION__)); | |||
4165 | ||||
4166 | ModuleFile &F = *M; | |||
4167 | BitstreamCursor &Stream = F.Stream; | |||
4168 | Stream = BitstreamCursor(PCHContainerRdr.ExtractPCH(*F.Buffer)); | |||
4169 | F.SizeInBits = F.Buffer->getBufferSize() * 8; | |||
4170 | ||||
4171 | // Sniff for the signature. | |||
4172 | if (!startsWithASTFileMagic(Stream)) { | |||
4173 | Diag(diag::err_module_file_invalid) << moduleKindForDiagnostic(Type) | |||
4174 | << FileName; | |||
4175 | return Failure; | |||
4176 | } | |||
4177 | ||||
4178 | // This is used for compatibility with older PCH formats. | |||
4179 | bool HaveReadControlBlock = false; | |||
4180 | while (true) { | |||
4181 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
4182 | ||||
4183 | switch (Entry.Kind) { | |||
4184 | case llvm::BitstreamEntry::Error: | |||
4185 | case llvm::BitstreamEntry::Record: | |||
4186 | case llvm::BitstreamEntry::EndBlock: | |||
4187 | Error("invalid record at top-level of AST file"); | |||
4188 | return Failure; | |||
4189 | ||||
4190 | case llvm::BitstreamEntry::SubBlock: | |||
4191 | break; | |||
4192 | } | |||
4193 | ||||
4194 | switch (Entry.ID) { | |||
4195 | case CONTROL_BLOCK_ID: | |||
4196 | HaveReadControlBlock = true; | |||
4197 | switch (ReadControlBlock(F, Loaded, ImportedBy, ClientLoadCapabilities)) { | |||
4198 | case Success: | |||
4199 | // Check that we didn't try to load a non-module AST file as a module. | |||
4200 | // | |||
4201 | // FIXME: Should we also perform the converse check? Loading a module as | |||
4202 | // a PCH file sort of works, but it's a bit wonky. | |||
4203 | if ((Type == MK_ImplicitModule || Type == MK_ExplicitModule || | |||
4204 | Type == MK_PrebuiltModule) && | |||
4205 | F.ModuleName.empty()) { | |||
4206 | auto Result = (Type == MK_ImplicitModule) ? OutOfDate : Failure; | |||
4207 | if (Result != OutOfDate || | |||
4208 | (ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
4209 | Diag(diag::err_module_file_not_module) << FileName; | |||
4210 | return Result; | |||
4211 | } | |||
4212 | break; | |||
4213 | ||||
4214 | case Failure: return Failure; | |||
4215 | case Missing: return Missing; | |||
4216 | case OutOfDate: return OutOfDate; | |||
4217 | case VersionMismatch: return VersionMismatch; | |||
4218 | case ConfigurationMismatch: return ConfigurationMismatch; | |||
4219 | case HadErrors: return HadErrors; | |||
4220 | } | |||
4221 | break; | |||
4222 | ||||
4223 | case AST_BLOCK_ID: | |||
4224 | if (!HaveReadControlBlock) { | |||
4225 | if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) | |||
4226 | Diag(diag::err_pch_version_too_old); | |||
4227 | return VersionMismatch; | |||
4228 | } | |||
4229 | ||||
4230 | // Record that we've loaded this module. | |||
4231 | Loaded.push_back(ImportedModule(M, ImportedBy, ImportLoc)); | |||
4232 | return Success; | |||
4233 | ||||
4234 | case UNHASHED_CONTROL_BLOCK_ID: | |||
4235 | // This block is handled using look-ahead during ReadControlBlock. We | |||
4236 | // shouldn't get here! | |||
4237 | Error("malformed block record in AST file"); | |||
4238 | return Failure; | |||
4239 | ||||
4240 | default: | |||
4241 | if (Stream.SkipBlock()) { | |||
4242 | Error("malformed block record in AST file"); | |||
4243 | return Failure; | |||
4244 | } | |||
4245 | break; | |||
4246 | } | |||
4247 | } | |||
4248 | ||||
4249 | return Success; | |||
4250 | } | |||
4251 | ||||
4252 | ASTReader::ASTReadResult | |||
4253 | ASTReader::readUnhashedControlBlock(ModuleFile &F, bool WasImportedBy, | |||
4254 | unsigned ClientLoadCapabilities) { | |||
4255 | const HeaderSearchOptions &HSOpts = | |||
4256 | PP.getHeaderSearchInfo().getHeaderSearchOpts(); | |||
4257 | bool AllowCompatibleConfigurationMismatch = | |||
4258 | F.Kind == MK_ExplicitModule || F.Kind == MK_PrebuiltModule; | |||
4259 | ||||
4260 | ASTReadResult Result = readUnhashedControlBlockImpl( | |||
4261 | &F, F.Data, ClientLoadCapabilities, AllowCompatibleConfigurationMismatch, | |||
4262 | Listener.get(), | |||
4263 | WasImportedBy ? false : HSOpts.ModulesValidateDiagnosticOptions); | |||
4264 | ||||
4265 | // If F was directly imported by another module, it's implicitly validated by | |||
4266 | // the importing module. | |||
4267 | if (DisableValidation || WasImportedBy || | |||
4268 | (AllowConfigurationMismatch && Result == ConfigurationMismatch)) | |||
4269 | return Success; | |||
4270 | ||||
4271 | if (Result == Failure) { | |||
4272 | Error("malformed block record in AST file"); | |||
4273 | return Failure; | |||
4274 | } | |||
4275 | ||||
4276 | if (Result == OutOfDate && F.Kind == MK_ImplicitModule) { | |||
4277 | // If this module has already been finalized in the PCMCache, we're stuck | |||
4278 | // with it; we can only load a single version of each module. | |||
4279 | // | |||
4280 | // This can happen when a module is imported in two contexts: in one, as a | |||
4281 | // user module; in another, as a system module (due to an import from | |||
4282 | // another module marked with the [system] flag). It usually indicates a | |||
4283 | // bug in the module map: this module should also be marked with [system]. | |||
4284 | // | |||
4285 | // If -Wno-system-headers (the default), and the first import is as a | |||
4286 | // system module, then validation will fail during the as-user import, | |||
4287 | // since -Werror flags won't have been validated. However, it's reasonable | |||
4288 | // to treat this consistently as a system module. | |||
4289 | // | |||
4290 | // If -Wsystem-headers, the PCM on disk was built with | |||
4291 | // -Wno-system-headers, and the first import is as a user module, then | |||
4292 | // validation will fail during the as-system import since the PCM on disk | |||
4293 | // doesn't guarantee that -Werror was respected. However, the -Werror | |||
4294 | // flags were checked during the initial as-user import. | |||
4295 | if (PCMCache.isBufferFinal(F.FileName)) { | |||
4296 | Diag(diag::warn_module_system_bit_conflict) << F.FileName; | |||
4297 | return Success; | |||
4298 | } | |||
4299 | } | |||
4300 | ||||
4301 | return Result; | |||
4302 | } | |||
4303 | ||||
4304 | ASTReader::ASTReadResult ASTReader::readUnhashedControlBlockImpl( | |||
4305 | ModuleFile *F, llvm::StringRef StreamData, unsigned ClientLoadCapabilities, | |||
4306 | bool AllowCompatibleConfigurationMismatch, ASTReaderListener *Listener, | |||
4307 | bool ValidateDiagnosticOptions) { | |||
4308 | // Initialize a stream. | |||
4309 | BitstreamCursor Stream(StreamData); | |||
4310 | ||||
4311 | // Sniff for the signature. | |||
4312 | if (!startsWithASTFileMagic(Stream)) | |||
4313 | return Failure; | |||
4314 | ||||
4315 | // Scan for the UNHASHED_CONTROL_BLOCK_ID block. | |||
4316 | if (SkipCursorToBlock(Stream, UNHASHED_CONTROL_BLOCK_ID)) | |||
4317 | return Failure; | |||
4318 | ||||
4319 | // Read all of the records in the options block. | |||
4320 | RecordData Record; | |||
4321 | ASTReadResult Result = Success; | |||
4322 | while (true) { | |||
4323 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
4324 | ||||
4325 | switch (Entry.Kind) { | |||
4326 | case llvm::BitstreamEntry::Error: | |||
4327 | case llvm::BitstreamEntry::SubBlock: | |||
4328 | return Failure; | |||
4329 | ||||
4330 | case llvm::BitstreamEntry::EndBlock: | |||
4331 | return Result; | |||
4332 | ||||
4333 | case llvm::BitstreamEntry::Record: | |||
4334 | // The interesting case. | |||
4335 | break; | |||
4336 | } | |||
4337 | ||||
4338 | // Read and process a record. | |||
4339 | Record.clear(); | |||
4340 | switch ( | |||
4341 | (UnhashedControlBlockRecordTypes)Stream.readRecord(Entry.ID, Record)) { | |||
4342 | case SIGNATURE: | |||
4343 | if (F) | |||
4344 | std::copy(Record.begin(), Record.end(), F->Signature.data()); | |||
4345 | break; | |||
4346 | case DIAGNOSTIC_OPTIONS: { | |||
4347 | bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0; | |||
4348 | if (Listener && ValidateDiagnosticOptions && | |||
4349 | !AllowCompatibleConfigurationMismatch && | |||
4350 | ParseDiagnosticOptions(Record, Complain, *Listener)) | |||
4351 | Result = OutOfDate; // Don't return early. Read the signature. | |||
4352 | break; | |||
4353 | } | |||
4354 | case DIAG_PRAGMA_MAPPINGS: | |||
4355 | if (!F) | |||
4356 | break; | |||
4357 | if (F->PragmaDiagMappings.empty()) | |||
4358 | F->PragmaDiagMappings.swap(Record); | |||
4359 | else | |||
4360 | F->PragmaDiagMappings.insert(F->PragmaDiagMappings.end(), | |||
4361 | Record.begin(), Record.end()); | |||
4362 | break; | |||
4363 | } | |||
4364 | } | |||
4365 | } | |||
4366 | ||||
4367 | /// Parse a record and blob containing module file extension metadata. | |||
4368 | static bool parseModuleFileExtensionMetadata( | |||
4369 | const SmallVectorImpl<uint64_t> &Record, | |||
4370 | StringRef Blob, | |||
4371 | ModuleFileExtensionMetadata &Metadata) { | |||
4372 | if (Record.size() < 4) return true; | |||
4373 | ||||
4374 | Metadata.MajorVersion = Record[0]; | |||
4375 | Metadata.MinorVersion = Record[1]; | |||
4376 | ||||
4377 | unsigned BlockNameLen = Record[2]; | |||
4378 | unsigned UserInfoLen = Record[3]; | |||
4379 | ||||
4380 | if (BlockNameLen + UserInfoLen > Blob.size()) return true; | |||
4381 | ||||
4382 | Metadata.BlockName = std::string(Blob.data(), Blob.data() + BlockNameLen); | |||
4383 | Metadata.UserInfo = std::string(Blob.data() + BlockNameLen, | |||
4384 | Blob.data() + BlockNameLen + UserInfoLen); | |||
4385 | return false; | |||
4386 | } | |||
4387 | ||||
4388 | ASTReader::ASTReadResult ASTReader::ReadExtensionBlock(ModuleFile &F) { | |||
4389 | BitstreamCursor &Stream = F.Stream; | |||
4390 | ||||
4391 | RecordData Record; | |||
4392 | while (true) { | |||
4393 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
4394 | switch (Entry.Kind) { | |||
4395 | case llvm::BitstreamEntry::SubBlock: | |||
4396 | if (Stream.SkipBlock()) | |||
4397 | return Failure; | |||
4398 | ||||
4399 | continue; | |||
4400 | ||||
4401 | case llvm::BitstreamEntry::EndBlock: | |||
4402 | return Success; | |||
4403 | ||||
4404 | case llvm::BitstreamEntry::Error: | |||
4405 | return HadErrors; | |||
4406 | ||||
4407 | case llvm::BitstreamEntry::Record: | |||
4408 | break; | |||
4409 | } | |||
4410 | ||||
4411 | Record.clear(); | |||
4412 | StringRef Blob; | |||
4413 | unsigned RecCode = Stream.readRecord(Entry.ID, Record, &Blob); | |||
4414 | switch (RecCode) { | |||
4415 | case EXTENSION_METADATA: { | |||
4416 | ModuleFileExtensionMetadata Metadata; | |||
4417 | if (parseModuleFileExtensionMetadata(Record, Blob, Metadata)) | |||
4418 | return Failure; | |||
4419 | ||||
4420 | // Find a module file extension with this block name. | |||
4421 | auto Known = ModuleFileExtensions.find(Metadata.BlockName); | |||
4422 | if (Known == ModuleFileExtensions.end()) break; | |||
4423 | ||||
4424 | // Form a reader. | |||
4425 | if (auto Reader = Known->second->createExtensionReader(Metadata, *this, | |||
4426 | F, Stream)) { | |||
4427 | F.ExtensionReaders.push_back(std::move(Reader)); | |||
4428 | } | |||
4429 | ||||
4430 | break; | |||
4431 | } | |||
4432 | } | |||
4433 | } | |||
4434 | ||||
4435 | return Success; | |||
4436 | } | |||
4437 | ||||
4438 | void ASTReader::InitializeContext() { | |||
4439 | assert(ContextObj && "no context to initialize")(static_cast <bool> (ContextObj && "no context to initialize" ) ? void (0) : __assert_fail ("ContextObj && \"no context to initialize\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 4439, __extension__ __PRETTY_FUNCTION__)); | |||
4440 | ASTContext &Context = *ContextObj; | |||
4441 | ||||
4442 | // If there's a listener, notify them that we "read" the translation unit. | |||
4443 | if (DeserializationListener) | |||
4444 | DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID, | |||
4445 | Context.getTranslationUnitDecl()); | |||
4446 | ||||
4447 | // FIXME: Find a better way to deal with collisions between these | |||
4448 | // built-in types. Right now, we just ignore the problem. | |||
4449 | ||||
4450 | // Load the special types. | |||
4451 | if (SpecialTypes.size() >= NumSpecialTypeIDs) { | |||
4452 | if (unsigned String = SpecialTypes[SPECIAL_TYPE_CF_CONSTANT_STRING]) { | |||
4453 | if (!Context.CFConstantStringTypeDecl) | |||
4454 | Context.setCFConstantStringType(GetType(String)); | |||
4455 | } | |||
4456 | ||||
4457 | if (unsigned File = SpecialTypes[SPECIAL_TYPE_FILE]) { | |||
4458 | QualType FileType = GetType(File); | |||
4459 | if (FileType.isNull()) { | |||
4460 | Error("FILE type is NULL"); | |||
4461 | return; | |||
4462 | } | |||
4463 | ||||
4464 | if (!Context.FILEDecl) { | |||
4465 | if (const TypedefType *Typedef = FileType->getAs<TypedefType>()) | |||
4466 | Context.setFILEDecl(Typedef->getDecl()); | |||
4467 | else { | |||
4468 | const TagType *Tag = FileType->getAs<TagType>(); | |||
4469 | if (!Tag) { | |||
4470 | Error("Invalid FILE type in AST file"); | |||
4471 | return; | |||
4472 | } | |||
4473 | Context.setFILEDecl(Tag->getDecl()); | |||
4474 | } | |||
4475 | } | |||
4476 | } | |||
4477 | ||||
4478 | if (unsigned Jmp_buf = SpecialTypes[SPECIAL_TYPE_JMP_BUF]) { | |||
4479 | QualType Jmp_bufType = GetType(Jmp_buf); | |||
4480 | if (Jmp_bufType.isNull()) { | |||
4481 | Error("jmp_buf type is NULL"); | |||
4482 | return; | |||
4483 | } | |||
4484 | ||||
4485 | if (!Context.jmp_bufDecl) { | |||
4486 | if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>()) | |||
4487 | Context.setjmp_bufDecl(Typedef->getDecl()); | |||
4488 | else { | |||
4489 | const TagType *Tag = Jmp_bufType->getAs<TagType>(); | |||
4490 | if (!Tag) { | |||
4491 | Error("Invalid jmp_buf type in AST file"); | |||
4492 | return; | |||
4493 | } | |||
4494 | Context.setjmp_bufDecl(Tag->getDecl()); | |||
4495 | } | |||
4496 | } | |||
4497 | } | |||
4498 | ||||
4499 | if (unsigned Sigjmp_buf = SpecialTypes[SPECIAL_TYPE_SIGJMP_BUF]) { | |||
4500 | QualType Sigjmp_bufType = GetType(Sigjmp_buf); | |||
4501 | if (Sigjmp_bufType.isNull()) { | |||
4502 | Error("sigjmp_buf type is NULL"); | |||
4503 | return; | |||
4504 | } | |||
4505 | ||||
4506 | if (!Context.sigjmp_bufDecl) { | |||
4507 | if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>()) | |||
4508 | Context.setsigjmp_bufDecl(Typedef->getDecl()); | |||
4509 | else { | |||
4510 | const TagType *Tag = Sigjmp_bufType->getAs<TagType>(); | |||
4511 | assert(Tag && "Invalid sigjmp_buf type in AST file")(static_cast <bool> (Tag && "Invalid sigjmp_buf type in AST file" ) ? void (0) : __assert_fail ("Tag && \"Invalid sigjmp_buf type in AST file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 4511, __extension__ __PRETTY_FUNCTION__)); | |||
4512 | Context.setsigjmp_bufDecl(Tag->getDecl()); | |||
4513 | } | |||
4514 | } | |||
4515 | } | |||
4516 | ||||
4517 | if (unsigned ObjCIdRedef | |||
4518 | = SpecialTypes[SPECIAL_TYPE_OBJC_ID_REDEFINITION]) { | |||
4519 | if (Context.ObjCIdRedefinitionType.isNull()) | |||
4520 | Context.ObjCIdRedefinitionType = GetType(ObjCIdRedef); | |||
4521 | } | |||
4522 | ||||
4523 | if (unsigned ObjCClassRedef | |||
4524 | = SpecialTypes[SPECIAL_TYPE_OBJC_CLASS_REDEFINITION]) { | |||
4525 | if (Context.ObjCClassRedefinitionType.isNull()) | |||
4526 | Context.ObjCClassRedefinitionType = GetType(ObjCClassRedef); | |||
4527 | } | |||
4528 | ||||
4529 | if (unsigned ObjCSelRedef | |||
4530 | = SpecialTypes[SPECIAL_TYPE_OBJC_SEL_REDEFINITION]) { | |||
4531 | if (Context.ObjCSelRedefinitionType.isNull()) | |||
4532 | Context.ObjCSelRedefinitionType = GetType(ObjCSelRedef); | |||
4533 | } | |||
4534 | ||||
4535 | if (unsigned Ucontext_t = SpecialTypes[SPECIAL_TYPE_UCONTEXT_T]) { | |||
4536 | QualType Ucontext_tType = GetType(Ucontext_t); | |||
4537 | if (Ucontext_tType.isNull()) { | |||
4538 | Error("ucontext_t type is NULL"); | |||
4539 | return; | |||
4540 | } | |||
4541 | ||||
4542 | if (!Context.ucontext_tDecl) { | |||
4543 | if (const TypedefType *Typedef = Ucontext_tType->getAs<TypedefType>()) | |||
4544 | Context.setucontext_tDecl(Typedef->getDecl()); | |||
4545 | else { | |||
4546 | const TagType *Tag = Ucontext_tType->getAs<TagType>(); | |||
4547 | assert(Tag && "Invalid ucontext_t type in AST file")(static_cast <bool> (Tag && "Invalid ucontext_t type in AST file" ) ? void (0) : __assert_fail ("Tag && \"Invalid ucontext_t type in AST file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 4547, __extension__ __PRETTY_FUNCTION__)); | |||
4548 | Context.setucontext_tDecl(Tag->getDecl()); | |||
4549 | } | |||
4550 | } | |||
4551 | } | |||
4552 | } | |||
4553 | ||||
4554 | ReadPragmaDiagnosticMappings(Context.getDiagnostics()); | |||
4555 | ||||
4556 | // If there were any CUDA special declarations, deserialize them. | |||
4557 | if (!CUDASpecialDeclRefs.empty()) { | |||
4558 | assert(CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!")(static_cast <bool> (CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!") ? void (0) : __assert_fail ( "CUDASpecialDeclRefs.size() == 1 && \"More decl refs than expected!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 4558, __extension__ __PRETTY_FUNCTION__)); | |||
4559 | Context.setcudaConfigureCallDecl( | |||
4560 | cast<FunctionDecl>(GetDecl(CUDASpecialDeclRefs[0]))); | |||
4561 | } | |||
4562 | ||||
4563 | // Re-export any modules that were imported by a non-module AST file. | |||
4564 | // FIXME: This does not make macro-only imports visible again. | |||
4565 | for (auto &Import : ImportedModules) { | |||
4566 | if (Module *Imported = getSubmodule(Import.ID)) { | |||
4567 | makeModuleVisible(Imported, Module::AllVisible, | |||
4568 | /*ImportLoc=*/Import.ImportLoc); | |||
4569 | if (Import.ImportLoc.isValid()) | |||
4570 | PP.makeModuleVisible(Imported, Import.ImportLoc); | |||
4571 | // FIXME: should we tell Sema to make the module visible too? | |||
4572 | } | |||
4573 | } | |||
4574 | ImportedModules.clear(); | |||
4575 | } | |||
4576 | ||||
4577 | void ASTReader::finalizeForWriting() { | |||
4578 | // Nothing to do for now. | |||
4579 | } | |||
4580 | ||||
4581 | /// \brief Reads and return the signature record from \p PCH's control block, or | |||
4582 | /// else returns 0. | |||
4583 | static ASTFileSignature readASTFileSignature(StringRef PCH) { | |||
4584 | BitstreamCursor Stream(PCH); | |||
4585 | if (!startsWithASTFileMagic(Stream)) | |||
4586 | return ASTFileSignature(); | |||
4587 | ||||
4588 | // Scan for the UNHASHED_CONTROL_BLOCK_ID block. | |||
4589 | if (SkipCursorToBlock(Stream, UNHASHED_CONTROL_BLOCK_ID)) | |||
4590 | return ASTFileSignature(); | |||
4591 | ||||
4592 | // Scan for SIGNATURE inside the diagnostic options block. | |||
4593 | ASTReader::RecordData Record; | |||
4594 | while (true) { | |||
4595 | llvm::BitstreamEntry Entry = Stream.advanceSkippingSubblocks(); | |||
4596 | if (Entry.Kind != llvm::BitstreamEntry::Record) | |||
4597 | return ASTFileSignature(); | |||
4598 | ||||
4599 | Record.clear(); | |||
4600 | StringRef Blob; | |||
4601 | if (SIGNATURE == Stream.readRecord(Entry.ID, Record, &Blob)) | |||
4602 | return {{{(uint32_t)Record[0], (uint32_t)Record[1], (uint32_t)Record[2], | |||
4603 | (uint32_t)Record[3], (uint32_t)Record[4]}}}; | |||
4604 | } | |||
4605 | } | |||
4606 | ||||
4607 | /// \brief Retrieve the name of the original source file name | |||
4608 | /// directly from the AST file, without actually loading the AST | |||
4609 | /// file. | |||
4610 | std::string ASTReader::getOriginalSourceFile( | |||
4611 | const std::string &ASTFileName, FileManager &FileMgr, | |||
4612 | const PCHContainerReader &PCHContainerRdr, DiagnosticsEngine &Diags) { | |||
4613 | // Open the AST file. | |||
4614 | auto Buffer = FileMgr.getBufferForFile(ASTFileName); | |||
4615 | if (!Buffer) { | |||
4616 | Diags.Report(diag::err_fe_unable_to_read_pch_file) | |||
4617 | << ASTFileName << Buffer.getError().message(); | |||
4618 | return std::string(); | |||
4619 | } | |||
4620 | ||||
4621 | // Initialize the stream | |||
4622 | BitstreamCursor Stream(PCHContainerRdr.ExtractPCH(**Buffer)); | |||
4623 | ||||
4624 | // Sniff for the signature. | |||
4625 | if (!startsWithASTFileMagic(Stream)) { | |||
4626 | Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName; | |||
4627 | return std::string(); | |||
4628 | } | |||
4629 | ||||
4630 | // Scan for the CONTROL_BLOCK_ID block. | |||
4631 | if (SkipCursorToBlock(Stream, CONTROL_BLOCK_ID)) { | |||
4632 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; | |||
4633 | return std::string(); | |||
4634 | } | |||
4635 | ||||
4636 | // Scan for ORIGINAL_FILE inside the control block. | |||
4637 | RecordData Record; | |||
4638 | while (true) { | |||
4639 | llvm::BitstreamEntry Entry = Stream.advanceSkippingSubblocks(); | |||
4640 | if (Entry.Kind == llvm::BitstreamEntry::EndBlock) | |||
4641 | return std::string(); | |||
4642 | ||||
4643 | if (Entry.Kind != llvm::BitstreamEntry::Record) { | |||
4644 | Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; | |||
4645 | return std::string(); | |||
4646 | } | |||
4647 | ||||
4648 | Record.clear(); | |||
4649 | StringRef Blob; | |||
4650 | if (Stream.readRecord(Entry.ID, Record, &Blob) == ORIGINAL_FILE) | |||
4651 | return Blob.str(); | |||
4652 | } | |||
4653 | } | |||
4654 | ||||
4655 | namespace { | |||
4656 | ||||
4657 | class SimplePCHValidator : public ASTReaderListener { | |||
4658 | const LangOptions &ExistingLangOpts; | |||
4659 | const TargetOptions &ExistingTargetOpts; | |||
4660 | const PreprocessorOptions &ExistingPPOpts; | |||
4661 | std::string ExistingModuleCachePath; | |||
4662 | FileManager &FileMgr; | |||
4663 | ||||
4664 | public: | |||
4665 | SimplePCHValidator(const LangOptions &ExistingLangOpts, | |||
4666 | const TargetOptions &ExistingTargetOpts, | |||
4667 | const PreprocessorOptions &ExistingPPOpts, | |||
4668 | StringRef ExistingModuleCachePath, | |||
4669 | FileManager &FileMgr) | |||
4670 | : ExistingLangOpts(ExistingLangOpts), | |||
4671 | ExistingTargetOpts(ExistingTargetOpts), | |||
4672 | ExistingPPOpts(ExistingPPOpts), | |||
4673 | ExistingModuleCachePath(ExistingModuleCachePath), | |||
4674 | FileMgr(FileMgr) {} | |||
4675 | ||||
4676 | bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain, | |||
4677 | bool AllowCompatibleDifferences) override { | |||
4678 | return checkLanguageOptions(ExistingLangOpts, LangOpts, nullptr, | |||
4679 | AllowCompatibleDifferences); | |||
4680 | } | |||
4681 | ||||
4682 | bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain, | |||
4683 | bool AllowCompatibleDifferences) override { | |||
4684 | return checkTargetOptions(ExistingTargetOpts, TargetOpts, nullptr, | |||
4685 | AllowCompatibleDifferences); | |||
4686 | } | |||
4687 | ||||
4688 | bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts, | |||
4689 | StringRef SpecificModuleCachePath, | |||
4690 | bool Complain) override { | |||
4691 | return checkHeaderSearchOptions(HSOpts, SpecificModuleCachePath, | |||
4692 | ExistingModuleCachePath, | |||
4693 | nullptr, ExistingLangOpts); | |||
4694 | } | |||
4695 | ||||
4696 | bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, | |||
4697 | bool Complain, | |||
4698 | std::string &SuggestedPredefines) override { | |||
4699 | return checkPreprocessorOptions(ExistingPPOpts, PPOpts, nullptr, FileMgr, | |||
4700 | SuggestedPredefines, ExistingLangOpts); | |||
4701 | } | |||
4702 | }; | |||
4703 | ||||
4704 | } // namespace | |||
4705 | ||||
4706 | bool ASTReader::readASTFileControlBlock( | |||
4707 | StringRef Filename, FileManager &FileMgr, | |||
4708 | const PCHContainerReader &PCHContainerRdr, | |||
4709 | bool FindModuleFileExtensions, | |||
4710 | ASTReaderListener &Listener, bool ValidateDiagnosticOptions) { | |||
4711 | // Open the AST file. | |||
4712 | // FIXME: This allows use of the VFS; we do not allow use of the | |||
4713 | // VFS when actually loading a module. | |||
4714 | auto Buffer = FileMgr.getBufferForFile(Filename); | |||
4715 | if (!Buffer) { | |||
4716 | return true; | |||
4717 | } | |||
4718 | ||||
4719 | // Initialize the stream | |||
4720 | StringRef Bytes = PCHContainerRdr.ExtractPCH(**Buffer); | |||
4721 | BitstreamCursor Stream(Bytes); | |||
4722 | ||||
4723 | // Sniff for the signature. | |||
4724 | if (!startsWithASTFileMagic(Stream)) | |||
4725 | return true; | |||
4726 | ||||
4727 | // Scan for the CONTROL_BLOCK_ID block. | |||
4728 | if (SkipCursorToBlock(Stream, CONTROL_BLOCK_ID)) | |||
4729 | return true; | |||
4730 | ||||
4731 | bool NeedsInputFiles = Listener.needsInputFileVisitation(); | |||
4732 | bool NeedsSystemInputFiles = Listener.needsSystemInputFileVisitation(); | |||
4733 | bool NeedsImports = Listener.needsImportVisitation(); | |||
4734 | BitstreamCursor InputFilesCursor; | |||
4735 | ||||
4736 | RecordData Record; | |||
4737 | std::string ModuleDir; | |||
4738 | bool DoneWithControlBlock = false; | |||
4739 | while (!DoneWithControlBlock) { | |||
4740 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
4741 | ||||
4742 | switch (Entry.Kind) { | |||
4743 | case llvm::BitstreamEntry::SubBlock: { | |||
4744 | switch (Entry.ID) { | |||
4745 | case OPTIONS_BLOCK_ID: { | |||
4746 | std::string IgnoredSuggestedPredefines; | |||
4747 | if (ReadOptionsBlock(Stream, ARR_ConfigurationMismatch | ARR_OutOfDate, | |||
4748 | /*AllowCompatibleConfigurationMismatch*/ false, | |||
4749 | Listener, IgnoredSuggestedPredefines) != Success) | |||
4750 | return true; | |||
4751 | break; | |||
4752 | } | |||
4753 | ||||
4754 | case INPUT_FILES_BLOCK_ID: | |||
4755 | InputFilesCursor = Stream; | |||
4756 | if (Stream.SkipBlock() || | |||
4757 | (NeedsInputFiles && | |||
4758 | ReadBlockAbbrevs(InputFilesCursor, INPUT_FILES_BLOCK_ID))) | |||
4759 | return true; | |||
4760 | break; | |||
4761 | ||||
4762 | default: | |||
4763 | if (Stream.SkipBlock()) | |||
4764 | return true; | |||
4765 | break; | |||
4766 | } | |||
4767 | ||||
4768 | continue; | |||
4769 | } | |||
4770 | ||||
4771 | case llvm::BitstreamEntry::EndBlock: | |||
4772 | DoneWithControlBlock = true; | |||
4773 | break; | |||
4774 | ||||
4775 | case llvm::BitstreamEntry::Error: | |||
4776 | return true; | |||
4777 | ||||
4778 | case llvm::BitstreamEntry::Record: | |||
4779 | break; | |||
4780 | } | |||
4781 | ||||
4782 | if (DoneWithControlBlock) break; | |||
4783 | ||||
4784 | Record.clear(); | |||
4785 | StringRef Blob; | |||
4786 | unsigned RecCode = Stream.readRecord(Entry.ID, Record, &Blob); | |||
4787 | switch ((ControlRecordTypes)RecCode) { | |||
4788 | case METADATA: | |||
4789 | if (Record[0] != VERSION_MAJOR) | |||
4790 | return true; | |||
4791 | if (Listener.ReadFullVersionInformation(Blob)) | |||
4792 | return true; | |||
4793 | break; | |||
4794 | case MODULE_NAME: | |||
4795 | Listener.ReadModuleName(Blob); | |||
4796 | break; | |||
4797 | case MODULE_DIRECTORY: | |||
4798 | ModuleDir = Blob; | |||
4799 | break; | |||
4800 | case MODULE_MAP_FILE: { | |||
4801 | unsigned Idx = 0; | |||
4802 | auto Path = ReadString(Record, Idx); | |||
4803 | ResolveImportedPath(Path, ModuleDir); | |||
4804 | Listener.ReadModuleMapFile(Path); | |||
4805 | break; | |||
4806 | } | |||
4807 | case INPUT_FILE_OFFSETS: { | |||
4808 | if (!NeedsInputFiles) | |||
4809 | break; | |||
4810 | ||||
4811 | unsigned NumInputFiles = Record[0]; | |||
4812 | unsigned NumUserFiles = Record[1]; | |||
4813 | const uint64_t *InputFileOffs = (const uint64_t *)Blob.data(); | |||
4814 | for (unsigned I = 0; I != NumInputFiles; ++I) { | |||
4815 | // Go find this input file. | |||
4816 | bool isSystemFile = I >= NumUserFiles; | |||
4817 | ||||
4818 | if (isSystemFile && !NeedsSystemInputFiles) | |||
4819 | break; // the rest are system input files | |||
4820 | ||||
4821 | BitstreamCursor &Cursor = InputFilesCursor; | |||
4822 | SavedStreamPosition SavedPosition(Cursor); | |||
4823 | Cursor.JumpToBit(InputFileOffs[I]); | |||
4824 | ||||
4825 | unsigned Code = Cursor.ReadCode(); | |||
4826 | RecordData Record; | |||
4827 | StringRef Blob; | |||
4828 | bool shouldContinue = false; | |||
4829 | switch ((InputFileRecordTypes)Cursor.readRecord(Code, Record, &Blob)) { | |||
4830 | case INPUT_FILE: | |||
4831 | bool Overridden = static_cast<bool>(Record[3]); | |||
4832 | std::string Filename = Blob; | |||
4833 | ResolveImportedPath(Filename, ModuleDir); | |||
4834 | shouldContinue = Listener.visitInputFile( | |||
4835 | Filename, isSystemFile, Overridden, /*IsExplicitModule*/false); | |||
4836 | break; | |||
4837 | } | |||
4838 | if (!shouldContinue) | |||
4839 | break; | |||
4840 | } | |||
4841 | break; | |||
4842 | } | |||
4843 | ||||
4844 | case IMPORTS: { | |||
4845 | if (!NeedsImports) | |||
4846 | break; | |||
4847 | ||||
4848 | unsigned Idx = 0, N = Record.size(); | |||
4849 | while (Idx < N) { | |||
4850 | // Read information about the AST file. | |||
4851 | Idx += 5; // ImportLoc, Size, ModTime, Signature | |||
4852 | SkipString(Record, Idx); // Module name; FIXME: pass to listener? | |||
4853 | std::string Filename = ReadString(Record, Idx); | |||
4854 | ResolveImportedPath(Filename, ModuleDir); | |||
4855 | Listener.visitImport(Filename); | |||
4856 | } | |||
4857 | break; | |||
4858 | } | |||
4859 | ||||
4860 | default: | |||
4861 | // No other validation to perform. | |||
4862 | break; | |||
4863 | } | |||
4864 | } | |||
4865 | ||||
4866 | // Look for module file extension blocks, if requested. | |||
4867 | if (FindModuleFileExtensions) { | |||
4868 | BitstreamCursor SavedStream = Stream; | |||
4869 | while (!SkipCursorToBlock(Stream, EXTENSION_BLOCK_ID)) { | |||
4870 | bool DoneWithExtensionBlock = false; | |||
4871 | while (!DoneWithExtensionBlock) { | |||
4872 | llvm::BitstreamEntry Entry = Stream.advance(); | |||
4873 | ||||
4874 | switch (Entry.Kind) { | |||
4875 | case llvm::BitstreamEntry::SubBlock: | |||
4876 | if (Stream.SkipBlock()) | |||
4877 | return true; | |||
4878 | ||||
4879 | continue; | |||
4880 | ||||
4881 | case llvm::BitstreamEntry::EndBlock: | |||
4882 | DoneWithExtensionBlock = true; | |||
4883 | continue; | |||
4884 | ||||
4885 | case llvm::BitstreamEntry::Error: | |||
4886 | return true; | |||
4887 | ||||
4888 | case llvm::BitstreamEntry::Record: | |||
4889 | break; | |||
4890 | } | |||
4891 | ||||
4892 | Record.clear(); | |||
4893 | StringRef Blob; | |||
4894 | unsigned RecCode = Stream.readRecord(Entry.ID, Record, &Blob); | |||
4895 | switch (RecCode) { | |||
4896 | case EXTENSION_METADATA: { | |||
4897 | ModuleFileExtensionMetadata Metadata; | |||
4898 | if (parseModuleFileExtensionMetadata(Record, Blob, Metadata)) | |||
4899 | return true; | |||
4900 | ||||
4901 | Listener.readModuleFileExtension(Metadata); | |||
4902 | break; | |||
4903 | } | |||
4904 | } | |||
4905 | } | |||
4906 | } | |||
4907 | Stream = SavedStream; | |||
4908 | } | |||
4909 | ||||
4910 | // Scan for the UNHASHED_CONTROL_BLOCK_ID block. | |||
4911 | if (readUnhashedControlBlockImpl( | |||
4912 | nullptr, Bytes, ARR_ConfigurationMismatch | ARR_OutOfDate, | |||
4913 | /*AllowCompatibleConfigurationMismatch*/ false, &Listener, | |||
4914 | ValidateDiagnosticOptions) != Success) | |||
4915 | return true; | |||
4916 | ||||
4917 | return false; | |||
4918 | } | |||
4919 | ||||
4920 | bool ASTReader::isAcceptableASTFile(StringRef Filename, FileManager &FileMgr, | |||
4921 | const PCHContainerReader &PCHContainerRdr, | |||
4922 | const LangOptions &LangOpts, | |||
4923 | const TargetOptions &TargetOpts, | |||
4924 | const PreprocessorOptions &PPOpts, | |||
4925 | StringRef ExistingModuleCachePath) { | |||
4926 | SimplePCHValidator validator(LangOpts, TargetOpts, PPOpts, | |||
4927 | ExistingModuleCachePath, FileMgr); | |||
4928 | return !readASTFileControlBlock(Filename, FileMgr, PCHContainerRdr, | |||
4929 | /*FindModuleFileExtensions=*/false, | |||
4930 | validator, | |||
4931 | /*ValidateDiagnosticOptions=*/true); | |||
4932 | } | |||
4933 | ||||
4934 | ASTReader::ASTReadResult | |||
4935 | ASTReader::ReadSubmoduleBlock(ModuleFile &F, unsigned ClientLoadCapabilities) { | |||
4936 | // Enter the submodule block. | |||
4937 | if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) { | |||
4938 | Error("malformed submodule block record in AST file"); | |||
4939 | return Failure; | |||
4940 | } | |||
4941 | ||||
4942 | ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap(); | |||
4943 | bool First = true; | |||
4944 | Module *CurrentModule = nullptr; | |||
4945 | RecordData Record; | |||
4946 | while (true) { | |||
4947 | llvm::BitstreamEntry Entry = F.Stream.advanceSkippingSubblocks(); | |||
4948 | ||||
4949 | switch (Entry.Kind) { | |||
4950 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. | |||
4951 | case llvm::BitstreamEntry::Error: | |||
4952 | Error("malformed block record in AST file"); | |||
4953 | return Failure; | |||
4954 | case llvm::BitstreamEntry::EndBlock: | |||
4955 | return Success; | |||
4956 | case llvm::BitstreamEntry::Record: | |||
4957 | // The interesting case. | |||
4958 | break; | |||
4959 | } | |||
4960 | ||||
4961 | // Read a record. | |||
4962 | StringRef Blob; | |||
4963 | Record.clear(); | |||
4964 | auto Kind = F.Stream.readRecord(Entry.ID, Record, &Blob); | |||
4965 | ||||
4966 | if ((Kind == SUBMODULE_METADATA) != First) { | |||
4967 | Error("submodule metadata record should be at beginning of block"); | |||
4968 | return Failure; | |||
4969 | } | |||
4970 | First = false; | |||
4971 | ||||
4972 | // Submodule information is only valid if we have a current module. | |||
4973 | // FIXME: Should we error on these cases? | |||
4974 | if (!CurrentModule && Kind != SUBMODULE_METADATA && | |||
4975 | Kind != SUBMODULE_DEFINITION) | |||
4976 | continue; | |||
4977 | ||||
4978 | switch (Kind) { | |||
4979 | default: // Default behavior: ignore. | |||
4980 | break; | |||
4981 | ||||
4982 | case SUBMODULE_DEFINITION: { | |||
4983 | if (Record.size() < 8) { | |||
4984 | Error("malformed module definition"); | |||
4985 | return Failure; | |||
4986 | } | |||
4987 | ||||
4988 | StringRef Name = Blob; | |||
4989 | unsigned Idx = 0; | |||
4990 | SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[Idx++]); | |||
4991 | SubmoduleID Parent = getGlobalSubmoduleID(F, Record[Idx++]); | |||
4992 | Module::ModuleKind Kind = (Module::ModuleKind)Record[Idx++]; | |||
4993 | bool IsFramework = Record[Idx++]; | |||
4994 | bool IsExplicit = Record[Idx++]; | |||
4995 | bool IsSystem = Record[Idx++]; | |||
4996 | bool IsExternC = Record[Idx++]; | |||
4997 | bool InferSubmodules = Record[Idx++]; | |||
4998 | bool InferExplicitSubmodules = Record[Idx++]; | |||
4999 | bool InferExportWildcard = Record[Idx++]; | |||
5000 | bool ConfigMacrosExhaustive = Record[Idx++]; | |||
5001 | ||||
5002 | Module *ParentModule = nullptr; | |||
5003 | if (Parent) | |||
5004 | ParentModule = getSubmodule(Parent); | |||
5005 | ||||
5006 | // Retrieve this (sub)module from the module map, creating it if | |||
5007 | // necessary. | |||
5008 | CurrentModule = | |||
5009 | ModMap.findOrCreateModule(Name, ParentModule, IsFramework, IsExplicit) | |||
5010 | .first; | |||
5011 | ||||
5012 | // FIXME: set the definition loc for CurrentModule, or call | |||
5013 | // ModMap.setInferredModuleAllowedBy() | |||
5014 | ||||
5015 | SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS; | |||
5016 | if (GlobalIndex >= SubmodulesLoaded.size() || | |||
5017 | SubmodulesLoaded[GlobalIndex]) { | |||
5018 | Error("too many submodules"); | |||
5019 | return Failure; | |||
5020 | } | |||
5021 | ||||
5022 | if (!ParentModule) { | |||
5023 | if (const FileEntry *CurFile = CurrentModule->getASTFile()) { | |||
5024 | if (CurFile != F.File) { | |||
5025 | if (!Diags.isDiagnosticInFlight()) { | |||
5026 | Diag(diag::err_module_file_conflict) | |||
5027 | << CurrentModule->getTopLevelModuleName() | |||
5028 | << CurFile->getName() | |||
5029 | << F.File->getName(); | |||
5030 | } | |||
5031 | return Failure; | |||
5032 | } | |||
5033 | } | |||
5034 | ||||
5035 | CurrentModule->setASTFile(F.File); | |||
5036 | CurrentModule->PresumedModuleMapFile = F.ModuleMapPath; | |||
5037 | } | |||
5038 | ||||
5039 | CurrentModule->Kind = Kind; | |||
5040 | CurrentModule->Signature = F.Signature; | |||
5041 | CurrentModule->IsFromModuleFile = true; | |||
5042 | CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem; | |||
5043 | CurrentModule->IsExternC = IsExternC; | |||
5044 | CurrentModule->InferSubmodules = InferSubmodules; | |||
5045 | CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules; | |||
5046 | CurrentModule->InferExportWildcard = InferExportWildcard; | |||
5047 | CurrentModule->ConfigMacrosExhaustive = ConfigMacrosExhaustive; | |||
5048 | if (DeserializationListener) | |||
5049 | DeserializationListener->ModuleRead(GlobalID, CurrentModule); | |||
5050 | ||||
5051 | SubmodulesLoaded[GlobalIndex] = CurrentModule; | |||
5052 | ||||
5053 | // Clear out data that will be replaced by what is in the module file. | |||
5054 | CurrentModule->LinkLibraries.clear(); | |||
5055 | CurrentModule->ConfigMacros.clear(); | |||
5056 | CurrentModule->UnresolvedConflicts.clear(); | |||
5057 | CurrentModule->Conflicts.clear(); | |||
5058 | ||||
5059 | // The module is available unless it's missing a requirement; relevant | |||
5060 | // requirements will be (re-)added by SUBMODULE_REQUIRES records. | |||
5061 | // Missing headers that were present when the module was built do not | |||
5062 | // make it unavailable -- if we got this far, this must be an explicitly | |||
5063 | // imported module file. | |||
5064 | CurrentModule->Requirements.clear(); | |||
5065 | CurrentModule->MissingHeaders.clear(); | |||
5066 | CurrentModule->IsMissingRequirement = | |||
5067 | ParentModule && ParentModule->IsMissingRequirement; | |||
5068 | CurrentModule->IsAvailable = !CurrentModule->IsMissingRequirement; | |||
5069 | break; | |||
5070 | } | |||
5071 | ||||
5072 | case SUBMODULE_UMBRELLA_HEADER: { | |||
5073 | std::string Filename = Blob; | |||
5074 | ResolveImportedPath(F, Filename); | |||
5075 | if (auto *Umbrella = PP.getFileManager().getFile(Filename)) { | |||
5076 | if (!CurrentModule->getUmbrellaHeader()) | |||
5077 | ModMap.setUmbrellaHeader(CurrentModule, Umbrella, Blob); | |||
5078 | else if (CurrentModule->getUmbrellaHeader().Entry != Umbrella) { | |||
5079 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
5080 | Error("mismatched umbrella headers in submodule"); | |||
5081 | return OutOfDate; | |||
5082 | } | |||
5083 | } | |||
5084 | break; | |||
5085 | } | |||
5086 | ||||
5087 | case SUBMODULE_HEADER: | |||
5088 | case SUBMODULE_EXCLUDED_HEADER: | |||
5089 | case SUBMODULE_PRIVATE_HEADER: | |||
5090 | // We lazily associate headers with their modules via the HeaderInfo table. | |||
5091 | // FIXME: Re-evaluate this section; maybe only store InputFile IDs instead | |||
5092 | // of complete filenames or remove it entirely. | |||
5093 | break; | |||
5094 | ||||
5095 | case SUBMODULE_TEXTUAL_HEADER: | |||
5096 | case SUBMODULE_PRIVATE_TEXTUAL_HEADER: | |||
5097 | // FIXME: Textual headers are not marked in the HeaderInfo table. Load | |||
5098 | // them here. | |||
5099 | break; | |||
5100 | ||||
5101 | case SUBMODULE_TOPHEADER: | |||
5102 | CurrentModule->addTopHeaderFilename(Blob); | |||
5103 | break; | |||
5104 | ||||
5105 | case SUBMODULE_UMBRELLA_DIR: { | |||
5106 | std::string Dirname = Blob; | |||
5107 | ResolveImportedPath(F, Dirname); | |||
5108 | if (auto *Umbrella = PP.getFileManager().getDirectory(Dirname)) { | |||
5109 | if (!CurrentModule->getUmbrellaDir()) | |||
5110 | ModMap.setUmbrellaDir(CurrentModule, Umbrella, Blob); | |||
5111 | else if (CurrentModule->getUmbrellaDir().Entry != Umbrella) { | |||
5112 | if ((ClientLoadCapabilities & ARR_OutOfDate) == 0) | |||
5113 | Error("mismatched umbrella directories in submodule"); | |||
5114 | return OutOfDate; | |||
5115 | } | |||
5116 | } | |||
5117 | break; | |||
5118 | } | |||
5119 | ||||
5120 | case SUBMODULE_METADATA: { | |||
5121 | F.BaseSubmoduleID = getTotalNumSubmodules(); | |||
5122 | F.LocalNumSubmodules = Record[0]; | |||
5123 | unsigned LocalBaseSubmoduleID = Record[1]; | |||
5124 | if (F.LocalNumSubmodules > 0) { | |||
5125 | // Introduce the global -> local mapping for submodules within this | |||
5126 | // module. | |||
5127 | GlobalSubmoduleMap.insert(std::make_pair(getTotalNumSubmodules()+1,&F)); | |||
5128 | ||||
5129 | // Introduce the local -> global mapping for submodules within this | |||
5130 | // module. | |||
5131 | F.SubmoduleRemap.insertOrReplace( | |||
5132 | std::make_pair(LocalBaseSubmoduleID, | |||
5133 | F.BaseSubmoduleID - LocalBaseSubmoduleID)); | |||
5134 | ||||
5135 | SubmodulesLoaded.resize(SubmodulesLoaded.size() + F.LocalNumSubmodules); | |||
5136 | } | |||
5137 | break; | |||
5138 | } | |||
5139 | ||||
5140 | case SUBMODULE_IMPORTS: | |||
5141 | for (unsigned Idx = 0; Idx != Record.size(); ++Idx) { | |||
5142 | UnresolvedModuleRef Unresolved; | |||
5143 | Unresolved.File = &F; | |||
5144 | Unresolved.Mod = CurrentModule; | |||
5145 | Unresolved.ID = Record[Idx]; | |||
5146 | Unresolved.Kind = UnresolvedModuleRef::Import; | |||
5147 | Unresolved.IsWildcard = false; | |||
5148 | UnresolvedModuleRefs.push_back(Unresolved); | |||
5149 | } | |||
5150 | break; | |||
5151 | ||||
5152 | case SUBMODULE_EXPORTS: | |||
5153 | for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) { | |||
5154 | UnresolvedModuleRef Unresolved; | |||
5155 | Unresolved.File = &F; | |||
5156 | Unresolved.Mod = CurrentModule; | |||
5157 | Unresolved.ID = Record[Idx]; | |||
5158 | Unresolved.Kind = UnresolvedModuleRef::Export; | |||
5159 | Unresolved.IsWildcard = Record[Idx + 1]; | |||
5160 | UnresolvedModuleRefs.push_back(Unresolved); | |||
5161 | } | |||
5162 | ||||
5163 | // Once we've loaded the set of exports, there's no reason to keep | |||
5164 | // the parsed, unresolved exports around. | |||
5165 | CurrentModule->UnresolvedExports.clear(); | |||
5166 | break; | |||
5167 | ||||
5168 | case SUBMODULE_REQUIRES: | |||
5169 | CurrentModule->addRequirement(Blob, Record[0], PP.getLangOpts(), | |||
5170 | PP.getTargetInfo()); | |||
5171 | break; | |||
5172 | ||||
5173 | case SUBMODULE_LINK_LIBRARY: | |||
5174 | CurrentModule->LinkLibraries.push_back( | |||
5175 | Module::LinkLibrary(Blob, Record[0])); | |||
5176 | break; | |||
5177 | ||||
5178 | case SUBMODULE_CONFIG_MACRO: | |||
5179 | CurrentModule->ConfigMacros.push_back(Blob.str()); | |||
5180 | break; | |||
5181 | ||||
5182 | case SUBMODULE_CONFLICT: { | |||
5183 | UnresolvedModuleRef Unresolved; | |||
5184 | Unresolved.File = &F; | |||
5185 | Unresolved.Mod = CurrentModule; | |||
5186 | Unresolved.ID = Record[0]; | |||
5187 | Unresolved.Kind = UnresolvedModuleRef::Conflict; | |||
5188 | Unresolved.IsWildcard = false; | |||
5189 | Unresolved.String = Blob; | |||
5190 | UnresolvedModuleRefs.push_back(Unresolved); | |||
5191 | break; | |||
5192 | } | |||
5193 | ||||
5194 | case SUBMODULE_INITIALIZERS: { | |||
5195 | if (!ContextObj) | |||
5196 | break; | |||
5197 | SmallVector<uint32_t, 16> Inits; | |||
5198 | for (auto &ID : Record) | |||
5199 | Inits.push_back(getGlobalDeclID(F, ID)); | |||
5200 | ContextObj->addLazyModuleInitializers(CurrentModule, Inits); | |||
5201 | break; | |||
5202 | } | |||
5203 | ||||
5204 | case SUBMODULE_EXPORT_AS: | |||
5205 | CurrentModule->ExportAsModule = Blob.str(); | |||
5206 | break; | |||
5207 | } | |||
5208 | } | |||
5209 | } | |||
5210 | ||||
5211 | /// \brief Parse the record that corresponds to a LangOptions data | |||
5212 | /// structure. | |||
5213 | /// | |||
5214 | /// This routine parses the language options from the AST file and then gives | |||
5215 | /// them to the AST listener if one is set. | |||
5216 | /// | |||
5217 | /// \returns true if the listener deems the file unacceptable, false otherwise. | |||
5218 | bool ASTReader::ParseLanguageOptions(const RecordData &Record, | |||
5219 | bool Complain, | |||
5220 | ASTReaderListener &Listener, | |||
5221 | bool AllowCompatibleDifferences) { | |||
5222 | LangOptions LangOpts; | |||
5223 | unsigned Idx = 0; | |||
5224 | #define LANGOPT(Name, Bits, Default, Description) \ | |||
5225 | LangOpts.Name = Record[Idx++]; | |||
5226 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ | |||
5227 | LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++])); | |||
5228 | #include "clang/Basic/LangOptions.def" | |||
5229 | #define SANITIZER(NAME, ID) \ | |||
5230 | LangOpts.Sanitize.set(SanitizerKind::ID, Record[Idx++]); | |||
5231 | #include "clang/Basic/Sanitizers.def" | |||
5232 | ||||
5233 | for (unsigned N = Record[Idx++]; N; --N) | |||
5234 | LangOpts.ModuleFeatures.push_back(ReadString(Record, Idx)); | |||
5235 | ||||
5236 | ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++]; | |||
5237 | VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx); | |||
5238 | LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion); | |||
5239 | ||||
5240 | LangOpts.CurrentModule = ReadString(Record, Idx); | |||
5241 | ||||
5242 | // Comment options. | |||
5243 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5244 | LangOpts.CommentOpts.BlockCommandNames.push_back( | |||
5245 | ReadString(Record, Idx)); | |||
5246 | } | |||
5247 | LangOpts.CommentOpts.ParseAllComments = Record[Idx++]; | |||
5248 | ||||
5249 | // OpenMP offloading options. | |||
5250 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5251 | LangOpts.OMPTargetTriples.push_back(llvm::Triple(ReadString(Record, Idx))); | |||
5252 | } | |||
5253 | ||||
5254 | LangOpts.OMPHostIRFile = ReadString(Record, Idx); | |||
5255 | ||||
5256 | return Listener.ReadLanguageOptions(LangOpts, Complain, | |||
5257 | AllowCompatibleDifferences); | |||
5258 | } | |||
5259 | ||||
5260 | bool ASTReader::ParseTargetOptions(const RecordData &Record, bool Complain, | |||
5261 | ASTReaderListener &Listener, | |||
5262 | bool AllowCompatibleDifferences) { | |||
5263 | unsigned Idx = 0; | |||
5264 | TargetOptions TargetOpts; | |||
5265 | TargetOpts.Triple = ReadString(Record, Idx); | |||
5266 | TargetOpts.CPU = ReadString(Record, Idx); | |||
5267 | TargetOpts.ABI = ReadString(Record, Idx); | |||
5268 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5269 | TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx)); | |||
5270 | } | |||
5271 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5272 | TargetOpts.Features.push_back(ReadString(Record, Idx)); | |||
5273 | } | |||
5274 | ||||
5275 | return Listener.ReadTargetOptions(TargetOpts, Complain, | |||
5276 | AllowCompatibleDifferences); | |||
5277 | } | |||
5278 | ||||
5279 | bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain, | |||
5280 | ASTReaderListener &Listener) { | |||
5281 | IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts(new DiagnosticOptions); | |||
5282 | unsigned Idx = 0; | |||
5283 | #define DIAGOPT(Name, Bits, Default) DiagOpts->Name = Record[Idx++]; | |||
5284 | #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ | |||
5285 | DiagOpts->set##Name(static_cast<Type>(Record[Idx++])); | |||
5286 | #include "clang/Basic/DiagnosticOptions.def" | |||
5287 | ||||
5288 | for (unsigned N = Record[Idx++]; N; --N) | |||
5289 | DiagOpts->Warnings.push_back(ReadString(Record, Idx)); | |||
5290 | for (unsigned N = Record[Idx++]; N; --N) | |||
5291 | DiagOpts->Remarks.push_back(ReadString(Record, Idx)); | |||
5292 | ||||
5293 | return Listener.ReadDiagnosticOptions(DiagOpts, Complain); | |||
5294 | } | |||
5295 | ||||
5296 | bool ASTReader::ParseFileSystemOptions(const RecordData &Record, bool Complain, | |||
5297 | ASTReaderListener &Listener) { | |||
5298 | FileSystemOptions FSOpts; | |||
5299 | unsigned Idx = 0; | |||
5300 | FSOpts.WorkingDir = ReadString(Record, Idx); | |||
5301 | return Listener.ReadFileSystemOptions(FSOpts, Complain); | |||
5302 | } | |||
5303 | ||||
5304 | bool ASTReader::ParseHeaderSearchOptions(const RecordData &Record, | |||
5305 | bool Complain, | |||
5306 | ASTReaderListener &Listener) { | |||
5307 | HeaderSearchOptions HSOpts; | |||
5308 | unsigned Idx = 0; | |||
5309 | HSOpts.Sysroot = ReadString(Record, Idx); | |||
5310 | ||||
5311 | // Include entries. | |||
5312 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5313 | std::string Path = ReadString(Record, Idx); | |||
5314 | frontend::IncludeDirGroup Group | |||
5315 | = static_cast<frontend::IncludeDirGroup>(Record[Idx++]); | |||
5316 | bool IsFramework = Record[Idx++]; | |||
5317 | bool IgnoreSysRoot = Record[Idx++]; | |||
5318 | HSOpts.UserEntries.emplace_back(std::move(Path), Group, IsFramework, | |||
5319 | IgnoreSysRoot); | |||
5320 | } | |||
5321 | ||||
5322 | // System header prefixes. | |||
5323 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5324 | std::string Prefix = ReadString(Record, Idx); | |||
5325 | bool IsSystemHeader = Record[Idx++]; | |||
5326 | HSOpts.SystemHeaderPrefixes.emplace_back(std::move(Prefix), IsSystemHeader); | |||
5327 | } | |||
5328 | ||||
5329 | HSOpts.ResourceDir = ReadString(Record, Idx); | |||
5330 | HSOpts.ModuleCachePath = ReadString(Record, Idx); | |||
5331 | HSOpts.ModuleUserBuildPath = ReadString(Record, Idx); | |||
5332 | HSOpts.DisableModuleHash = Record[Idx++]; | |||
5333 | HSOpts.ImplicitModuleMaps = Record[Idx++]; | |||
5334 | HSOpts.ModuleMapFileHomeIsCwd = Record[Idx++]; | |||
5335 | HSOpts.UseBuiltinIncludes = Record[Idx++]; | |||
5336 | HSOpts.UseStandardSystemIncludes = Record[Idx++]; | |||
5337 | HSOpts.UseStandardCXXIncludes = Record[Idx++]; | |||
5338 | HSOpts.UseLibcxx = Record[Idx++]; | |||
5339 | std::string SpecificModuleCachePath = ReadString(Record, Idx); | |||
5340 | ||||
5341 | return Listener.ReadHeaderSearchOptions(HSOpts, SpecificModuleCachePath, | |||
5342 | Complain); | |||
5343 | } | |||
5344 | ||||
5345 | bool ASTReader::ParsePreprocessorOptions(const RecordData &Record, | |||
5346 | bool Complain, | |||
5347 | ASTReaderListener &Listener, | |||
5348 | std::string &SuggestedPredefines) { | |||
5349 | PreprocessorOptions PPOpts; | |||
5350 | unsigned Idx = 0; | |||
5351 | ||||
5352 | // Macro definitions/undefs | |||
5353 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5354 | std::string Macro = ReadString(Record, Idx); | |||
5355 | bool IsUndef = Record[Idx++]; | |||
5356 | PPOpts.Macros.push_back(std::make_pair(Macro, IsUndef)); | |||
5357 | } | |||
5358 | ||||
5359 | // Includes | |||
5360 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5361 | PPOpts.Includes.push_back(ReadString(Record, Idx)); | |||
5362 | } | |||
5363 | ||||
5364 | // Macro Includes | |||
5365 | for (unsigned N = Record[Idx++]; N; --N) { | |||
5366 | PPOpts.MacroIncludes.push_back(ReadString(Record, Idx)); | |||
5367 | } | |||
5368 | ||||
5369 | PPOpts.UsePredefines = Record[Idx++]; | |||
5370 | PPOpts.DetailedRecord = Record[Idx++]; | |||
5371 | PPOpts.ImplicitPCHInclude = ReadString(Record, Idx); | |||
5372 | PPOpts.ImplicitPTHInclude = ReadString(Record, Idx); | |||
5373 | PPOpts.ObjCXXARCStandardLibrary = | |||
5374 | static_cast<ObjCXXARCStandardLibraryKind>(Record[Idx++]); | |||
5375 | SuggestedPredefines.clear(); | |||
5376 | return Listener.ReadPreprocessorOptions(PPOpts, Complain, | |||
5377 | SuggestedPredefines); | |||
5378 | } | |||
5379 | ||||
5380 | std::pair<ModuleFile *, unsigned> | |||
5381 | ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) { | |||
5382 | GlobalPreprocessedEntityMapType::iterator | |||
5383 | I = GlobalPreprocessedEntityMap.find(GlobalIndex); | |||
5384 | assert(I != GlobalPreprocessedEntityMap.end() &&(static_cast <bool> (I != GlobalPreprocessedEntityMap.end () && "Corrupted global preprocessed entity map") ? void (0) : __assert_fail ("I != GlobalPreprocessedEntityMap.end() && \"Corrupted global preprocessed entity map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5385, __extension__ __PRETTY_FUNCTION__)) | |||
5385 | "Corrupted global preprocessed entity map")(static_cast <bool> (I != GlobalPreprocessedEntityMap.end () && "Corrupted global preprocessed entity map") ? void (0) : __assert_fail ("I != GlobalPreprocessedEntityMap.end() && \"Corrupted global preprocessed entity map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5385, __extension__ __PRETTY_FUNCTION__)); | |||
5386 | ModuleFile *M = I->second; | |||
5387 | unsigned LocalIndex = GlobalIndex - M->BasePreprocessedEntityID; | |||
5388 | return std::make_pair(M, LocalIndex); | |||
5389 | } | |||
5390 | ||||
5391 | llvm::iterator_range<PreprocessingRecord::iterator> | |||
5392 | ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const { | |||
5393 | if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord()) | |||
5394 | return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID, | |||
5395 | Mod.NumPreprocessedEntities); | |||
5396 | ||||
5397 | return llvm::make_range(PreprocessingRecord::iterator(), | |||
5398 | PreprocessingRecord::iterator()); | |||
5399 | } | |||
5400 | ||||
5401 | llvm::iterator_range<ASTReader::ModuleDeclIterator> | |||
5402 | ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) { | |||
5403 | return llvm::make_range( | |||
5404 | ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls), | |||
5405 | ModuleDeclIterator(this, &Mod, | |||
5406 | Mod.FileSortedDecls + Mod.NumFileSortedDecls)); | |||
5407 | } | |||
5408 | ||||
5409 | SourceRange ASTReader::ReadSkippedRange(unsigned GlobalIndex) { | |||
5410 | auto I = GlobalSkippedRangeMap.find(GlobalIndex); | |||
5411 | assert(I != GlobalSkippedRangeMap.end() &&(static_cast <bool> (I != GlobalSkippedRangeMap.end() && "Corrupted global skipped range map") ? void (0) : __assert_fail ("I != GlobalSkippedRangeMap.end() && \"Corrupted global skipped range map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5412, __extension__ __PRETTY_FUNCTION__)) | |||
5412 | "Corrupted global skipped range map")(static_cast <bool> (I != GlobalSkippedRangeMap.end() && "Corrupted global skipped range map") ? void (0) : __assert_fail ("I != GlobalSkippedRangeMap.end() && \"Corrupted global skipped range map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5412, __extension__ __PRETTY_FUNCTION__)); | |||
5413 | ModuleFile *M = I->second; | |||
5414 | unsigned LocalIndex = GlobalIndex - M->BasePreprocessedSkippedRangeID; | |||
5415 | assert(LocalIndex < M->NumPreprocessedSkippedRanges)(static_cast <bool> (LocalIndex < M->NumPreprocessedSkippedRanges ) ? void (0) : __assert_fail ("LocalIndex < M->NumPreprocessedSkippedRanges" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5415, __extension__ __PRETTY_FUNCTION__)); | |||
5416 | PPSkippedRange RawRange = M->PreprocessedSkippedRangeOffsets[LocalIndex]; | |||
5417 | SourceRange Range(TranslateSourceLocation(*M, RawRange.getBegin()), | |||
5418 | TranslateSourceLocation(*M, RawRange.getEnd())); | |||
5419 | assert(Range.isValid())(static_cast <bool> (Range.isValid()) ? void (0) : __assert_fail ("Range.isValid()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5419, __extension__ __PRETTY_FUNCTION__)); | |||
5420 | return Range; | |||
5421 | } | |||
5422 | ||||
5423 | PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) { | |||
5424 | PreprocessedEntityID PPID = Index+1; | |||
5425 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); | |||
5426 | ModuleFile &M = *PPInfo.first; | |||
5427 | unsigned LocalIndex = PPInfo.second; | |||
5428 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex]; | |||
5429 | ||||
5430 | if (!PP.getPreprocessingRecord()) { | |||
5431 | Error("no preprocessing record"); | |||
5432 | return nullptr; | |||
5433 | } | |||
5434 | ||||
5435 | SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor); | |||
5436 | M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset); | |||
5437 | ||||
5438 | llvm::BitstreamEntry Entry = | |||
5439 | M.PreprocessorDetailCursor.advance(BitstreamCursor::AF_DontPopBlockAtEnd); | |||
5440 | if (Entry.Kind != llvm::BitstreamEntry::Record) | |||
5441 | return nullptr; | |||
5442 | ||||
5443 | // Read the record. | |||
5444 | SourceRange Range(TranslateSourceLocation(M, PPOffs.getBegin()), | |||
5445 | TranslateSourceLocation(M, PPOffs.getEnd())); | |||
5446 | PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); | |||
5447 | StringRef Blob; | |||
5448 | RecordData Record; | |||
5449 | PreprocessorDetailRecordTypes RecType = | |||
5450 | (PreprocessorDetailRecordTypes)M.PreprocessorDetailCursor.readRecord( | |||
5451 | Entry.ID, Record, &Blob); | |||
5452 | switch (RecType) { | |||
5453 | case PPD_MACRO_EXPANSION: { | |||
5454 | bool isBuiltin = Record[0]; | |||
5455 | IdentifierInfo *Name = nullptr; | |||
5456 | MacroDefinitionRecord *Def = nullptr; | |||
5457 | if (isBuiltin) | |||
5458 | Name = getLocalIdentifier(M, Record[1]); | |||
5459 | else { | |||
5460 | PreprocessedEntityID GlobalID = | |||
5461 | getGlobalPreprocessedEntityID(M, Record[1]); | |||
5462 | Def = cast<MacroDefinitionRecord>( | |||
5463 | PPRec.getLoadedPreprocessedEntity(GlobalID - 1)); | |||
5464 | } | |||
5465 | ||||
5466 | MacroExpansion *ME; | |||
5467 | if (isBuiltin) | |||
5468 | ME = new (PPRec) MacroExpansion(Name, Range); | |||
5469 | else | |||
5470 | ME = new (PPRec) MacroExpansion(Def, Range); | |||
5471 | ||||
5472 | return ME; | |||
5473 | } | |||
5474 | ||||
5475 | case PPD_MACRO_DEFINITION: { | |||
5476 | // Decode the identifier info and then check again; if the macro is | |||
5477 | // still defined and associated with the identifier, | |||
5478 | IdentifierInfo *II = getLocalIdentifier(M, Record[0]); | |||
5479 | MacroDefinitionRecord *MD = new (PPRec) MacroDefinitionRecord(II, Range); | |||
5480 | ||||
5481 | if (DeserializationListener) | |||
5482 | DeserializationListener->MacroDefinitionRead(PPID, MD); | |||
5483 | ||||
5484 | return MD; | |||
5485 | } | |||
5486 | ||||
5487 | case PPD_INCLUSION_DIRECTIVE: { | |||
5488 | const char *FullFileNameStart = Blob.data() + Record[0]; | |||
5489 | StringRef FullFileName(FullFileNameStart, Blob.size() - Record[0]); | |||
5490 | const FileEntry *File = nullptr; | |||
5491 | if (!FullFileName.empty()) | |||
5492 | File = PP.getFileManager().getFile(FullFileName); | |||
5493 | ||||
5494 | // FIXME: Stable encoding | |||
5495 | InclusionDirective::InclusionKind Kind | |||
5496 | = static_cast<InclusionDirective::InclusionKind>(Record[2]); | |||
5497 | InclusionDirective *ID | |||
5498 | = new (PPRec) InclusionDirective(PPRec, Kind, | |||
5499 | StringRef(Blob.data(), Record[0]), | |||
5500 | Record[1], Record[3], | |||
5501 | File, | |||
5502 | Range); | |||
5503 | return ID; | |||
5504 | } | |||
5505 | } | |||
5506 | ||||
5507 | llvm_unreachable("Invalid PreprocessorDetailRecordTypes")::llvm::llvm_unreachable_internal("Invalid PreprocessorDetailRecordTypes" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5507); | |||
5508 | } | |||
5509 | ||||
5510 | /// \brief Find the next module that contains entities and return the ID | |||
5511 | /// of the first entry. | |||
5512 | /// | |||
5513 | /// \param SLocMapI points at a chunk of a module that contains no | |||
5514 | /// preprocessed entities or the entities it contains are not the ones we are | |||
5515 | /// looking for. | |||
5516 | PreprocessedEntityID ASTReader::findNextPreprocessedEntity( | |||
5517 | GlobalSLocOffsetMapType::const_iterator SLocMapI) const { | |||
5518 | ++SLocMapI; | |||
5519 | for (GlobalSLocOffsetMapType::const_iterator | |||
5520 | EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) { | |||
5521 | ModuleFile &M = *SLocMapI->second; | |||
5522 | if (M.NumPreprocessedEntities) | |||
5523 | return M.BasePreprocessedEntityID; | |||
5524 | } | |||
5525 | ||||
5526 | return getTotalNumPreprocessedEntities(); | |||
5527 | } | |||
5528 | ||||
5529 | namespace { | |||
5530 | ||||
5531 | struct PPEntityComp { | |||
5532 | const ASTReader &Reader; | |||
5533 | ModuleFile &M; | |||
5534 | ||||
5535 | PPEntityComp(const ASTReader &Reader, ModuleFile &M) : Reader(Reader), M(M) {} | |||
5536 | ||||
5537 | bool operator()(const PPEntityOffset &L, const PPEntityOffset &R) const { | |||
5538 | SourceLocation LHS = getLoc(L); | |||
5539 | SourceLocation RHS = getLoc(R); | |||
5540 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); | |||
5541 | } | |||
5542 | ||||
5543 | bool operator()(const PPEntityOffset &L, SourceLocation RHS) const { | |||
5544 | SourceLocation LHS = getLoc(L); | |||
5545 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); | |||
5546 | } | |||
5547 | ||||
5548 | bool operator()(SourceLocation LHS, const PPEntityOffset &R) const { | |||
5549 | SourceLocation RHS = getLoc(R); | |||
5550 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); | |||
5551 | } | |||
5552 | ||||
5553 | SourceLocation getLoc(const PPEntityOffset &PPE) const { | |||
5554 | return Reader.TranslateSourceLocation(M, PPE.getBegin()); | |||
5555 | } | |||
5556 | }; | |||
5557 | ||||
5558 | } // namespace | |||
5559 | ||||
5560 | PreprocessedEntityID ASTReader::findPreprocessedEntity(SourceLocation Loc, | |||
5561 | bool EndsAfter) const { | |||
5562 | if (SourceMgr.isLocalSourceLocation(Loc)) | |||
5563 | return getTotalNumPreprocessedEntities(); | |||
5564 | ||||
5565 | GlobalSLocOffsetMapType::const_iterator SLocMapI = GlobalSLocOffsetMap.find( | |||
5566 | SourceManager::MaxLoadedOffset - Loc.getOffset() - 1); | |||
5567 | assert(SLocMapI != GlobalSLocOffsetMap.end() &&(static_cast <bool> (SLocMapI != GlobalSLocOffsetMap.end () && "Corrupted global sloc offset map") ? void (0) : __assert_fail ("SLocMapI != GlobalSLocOffsetMap.end() && \"Corrupted global sloc offset map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5568, __extension__ __PRETTY_FUNCTION__)) | |||
5568 | "Corrupted global sloc offset map")(static_cast <bool> (SLocMapI != GlobalSLocOffsetMap.end () && "Corrupted global sloc offset map") ? void (0) : __assert_fail ("SLocMapI != GlobalSLocOffsetMap.end() && \"Corrupted global sloc offset map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5568, __extension__ __PRETTY_FUNCTION__)); | |||
5569 | ||||
5570 | if (SLocMapI->second->NumPreprocessedEntities == 0) | |||
5571 | return findNextPreprocessedEntity(SLocMapI); | |||
5572 | ||||
5573 | ModuleFile &M = *SLocMapI->second; | |||
5574 | ||||
5575 | using pp_iterator = const PPEntityOffset *; | |||
5576 | ||||
5577 | pp_iterator pp_begin = M.PreprocessedEntityOffsets; | |||
5578 | pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities; | |||
5579 | ||||
5580 | size_t Count = M.NumPreprocessedEntities; | |||
5581 | size_t Half; | |||
5582 | pp_iterator First = pp_begin; | |||
5583 | pp_iterator PPI; | |||
5584 | ||||
5585 | if (EndsAfter) { | |||
5586 | PPI = std::upper_bound(pp_begin, pp_end, Loc, | |||
5587 | PPEntityComp(*this, M)); | |||
5588 | } else { | |||
5589 | // Do a binary search manually instead of using std::lower_bound because | |||
5590 | // The end locations of entities may be unordered (when a macro expansion | |||
5591 | // is inside another macro argument), but for this case it is not important | |||
5592 | // whether we get the first macro expansion or its containing macro. | |||
5593 | while (Count > 0) { | |||
5594 | Half = Count / 2; | |||
5595 | PPI = First; | |||
5596 | std::advance(PPI, Half); | |||
5597 | if (SourceMgr.isBeforeInTranslationUnit( | |||
5598 | TranslateSourceLocation(M, PPI->getEnd()), Loc)) { | |||
5599 | First = PPI; | |||
5600 | ++First; | |||
5601 | Count = Count - Half - 1; | |||
5602 | } else | |||
5603 | Count = Half; | |||
5604 | } | |||
5605 | } | |||
5606 | ||||
5607 | if (PPI == pp_end) | |||
5608 | return findNextPreprocessedEntity(SLocMapI); | |||
5609 | ||||
5610 | return M.BasePreprocessedEntityID + (PPI - pp_begin); | |||
5611 | } | |||
5612 | ||||
5613 | /// \brief Returns a pair of [Begin, End) indices of preallocated | |||
5614 | /// preprocessed entities that \arg Range encompasses. | |||
5615 | std::pair<unsigned, unsigned> | |||
5616 | ASTReader::findPreprocessedEntitiesInRange(SourceRange Range) { | |||
5617 | if (Range.isInvalid()) | |||
5618 | return std::make_pair(0,0); | |||
5619 | assert(!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin()))(static_cast <bool> (!SourceMgr.isBeforeInTranslationUnit (Range.getEnd(),Range.getBegin())) ? void (0) : __assert_fail ("!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin())" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5619, __extension__ __PRETTY_FUNCTION__)); | |||
5620 | ||||
5621 | PreprocessedEntityID BeginID = | |||
5622 | findPreprocessedEntity(Range.getBegin(), false); | |||
5623 | PreprocessedEntityID EndID = findPreprocessedEntity(Range.getEnd(), true); | |||
5624 | return std::make_pair(BeginID, EndID); | |||
5625 | } | |||
5626 | ||||
5627 | /// \brief Optionally returns true or false if the preallocated preprocessed | |||
5628 | /// entity with index \arg Index came from file \arg FID. | |||
5629 | Optional<bool> ASTReader::isPreprocessedEntityInFileID(unsigned Index, | |||
5630 | FileID FID) { | |||
5631 | if (FID.isInvalid()) | |||
5632 | return false; | |||
5633 | ||||
5634 | std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); | |||
5635 | ModuleFile &M = *PPInfo.first; | |||
5636 | unsigned LocalIndex = PPInfo.second; | |||
5637 | const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex]; | |||
5638 | ||||
5639 | SourceLocation Loc = TranslateSourceLocation(M, PPOffs.getBegin()); | |||
5640 | if (Loc.isInvalid()) | |||
5641 | return false; | |||
5642 | ||||
5643 | if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID)) | |||
5644 | return true; | |||
5645 | else | |||
5646 | return false; | |||
5647 | } | |||
5648 | ||||
5649 | namespace { | |||
5650 | ||||
5651 | /// \brief Visitor used to search for information about a header file. | |||
5652 | class HeaderFileInfoVisitor { | |||
5653 | const FileEntry *FE; | |||
5654 | Optional<HeaderFileInfo> HFI; | |||
5655 | ||||
5656 | public: | |||
5657 | explicit HeaderFileInfoVisitor(const FileEntry *FE) : FE(FE) {} | |||
5658 | ||||
5659 | bool operator()(ModuleFile &M) { | |||
5660 | HeaderFileInfoLookupTable *Table | |||
5661 | = static_cast<HeaderFileInfoLookupTable *>(M.HeaderFileInfoTable); | |||
5662 | if (!Table) | |||
5663 | return false; | |||
5664 | ||||
5665 | // Look in the on-disk hash table for an entry for this file name. | |||
5666 | HeaderFileInfoLookupTable::iterator Pos = Table->find(FE); | |||
5667 | if (Pos == Table->end()) | |||
5668 | return false; | |||
5669 | ||||
5670 | HFI = *Pos; | |||
5671 | return true; | |||
5672 | } | |||
5673 | ||||
5674 | Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; } | |||
5675 | }; | |||
5676 | ||||
5677 | } // namespace | |||
5678 | ||||
5679 | HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) { | |||
5680 | HeaderFileInfoVisitor Visitor(FE); | |||
5681 | ModuleMgr.visit(Visitor); | |||
5682 | if (Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo()) | |||
5683 | return *HFI; | |||
5684 | ||||
5685 | return HeaderFileInfo(); | |||
5686 | } | |||
5687 | ||||
5688 | void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) { | |||
5689 | using DiagState = DiagnosticsEngine::DiagState; | |||
5690 | SmallVector<DiagState *, 32> DiagStates; | |||
5691 | ||||
5692 | for (ModuleFile &F : ModuleMgr) { | |||
5693 | unsigned Idx = 0; | |||
5694 | auto &Record = F.PragmaDiagMappings; | |||
5695 | if (Record.empty()) | |||
5696 | continue; | |||
5697 | ||||
5698 | DiagStates.clear(); | |||
5699 | ||||
5700 | auto ReadDiagState = | |||
5701 | [&](const DiagState &BasedOn, SourceLocation Loc, | |||
5702 | bool IncludeNonPragmaStates) -> DiagnosticsEngine::DiagState * { | |||
5703 | unsigned BackrefID = Record[Idx++]; | |||
5704 | if (BackrefID != 0) | |||
5705 | return DiagStates[BackrefID - 1]; | |||
5706 | ||||
5707 | // A new DiagState was created here. | |||
5708 | Diag.DiagStates.push_back(BasedOn); | |||
5709 | DiagState *NewState = &Diag.DiagStates.back(); | |||
5710 | DiagStates.push_back(NewState); | |||
5711 | unsigned Size = Record[Idx++]; | |||
5712 | assert(Idx + Size * 2 <= Record.size() &&(static_cast <bool> (Idx + Size * 2 <= Record.size() && "Invalid data, not enough diag/map pairs") ? void (0) : __assert_fail ("Idx + Size * 2 <= Record.size() && \"Invalid data, not enough diag/map pairs\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5713, __extension__ __PRETTY_FUNCTION__)) | |||
5713 | "Invalid data, not enough diag/map pairs")(static_cast <bool> (Idx + Size * 2 <= Record.size() && "Invalid data, not enough diag/map pairs") ? void (0) : __assert_fail ("Idx + Size * 2 <= Record.size() && \"Invalid data, not enough diag/map pairs\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5713, __extension__ __PRETTY_FUNCTION__)); | |||
5714 | while (Size--) { | |||
5715 | unsigned DiagID = Record[Idx++]; | |||
5716 | DiagnosticMapping NewMapping = | |||
5717 | DiagnosticMapping::deserialize(Record[Idx++]); | |||
5718 | if (!NewMapping.isPragma() && !IncludeNonPragmaStates) | |||
5719 | continue; | |||
5720 | ||||
5721 | DiagnosticMapping &Mapping = NewState->getOrAddMapping(DiagID); | |||
5722 | ||||
5723 | // If this mapping was specified as a warning but the severity was | |||
5724 | // upgraded due to diagnostic settings, simulate the current diagnostic | |||
5725 | // settings (and use a warning). | |||
5726 | if (NewMapping.wasUpgradedFromWarning() && !Mapping.isErrorOrFatal()) { | |||
5727 | NewMapping.setSeverity(diag::Severity::Warning); | |||
5728 | NewMapping.setUpgradedFromWarning(false); | |||
5729 | } | |||
5730 | ||||
5731 | Mapping = NewMapping; | |||
5732 | } | |||
5733 | return NewState; | |||
5734 | }; | |||
5735 | ||||
5736 | // Read the first state. | |||
5737 | DiagState *FirstState; | |||
5738 | if (F.Kind == MK_ImplicitModule) { | |||
5739 | // Implicitly-built modules are reused with different diagnostic | |||
5740 | // settings. Use the initial diagnostic state from Diag to simulate this | |||
5741 | // compilation's diagnostic settings. | |||
5742 | FirstState = Diag.DiagStatesByLoc.FirstDiagState; | |||
5743 | DiagStates.push_back(FirstState); | |||
5744 | ||||
5745 | // Skip the initial diagnostic state from the serialized module. | |||
5746 | assert(Record[1] == 0 &&(static_cast <bool> (Record[1] == 0 && "Invalid data, unexpected backref in initial state" ) ? void (0) : __assert_fail ("Record[1] == 0 && \"Invalid data, unexpected backref in initial state\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5747, __extension__ __PRETTY_FUNCTION__)) | |||
5747 | "Invalid data, unexpected backref in initial state")(static_cast <bool> (Record[1] == 0 && "Invalid data, unexpected backref in initial state" ) ? void (0) : __assert_fail ("Record[1] == 0 && \"Invalid data, unexpected backref in initial state\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5747, __extension__ __PRETTY_FUNCTION__)); | |||
5748 | Idx = 3 + Record[2] * 2; | |||
5749 | assert(Idx < Record.size() &&(static_cast <bool> (Idx < Record.size() && "Invalid data, not enough state change pairs in initial state" ) ? void (0) : __assert_fail ("Idx < Record.size() && \"Invalid data, not enough state change pairs in initial state\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5750, __extension__ __PRETTY_FUNCTION__)) | |||
5750 | "Invalid data, not enough state change pairs in initial state")(static_cast <bool> (Idx < Record.size() && "Invalid data, not enough state change pairs in initial state" ) ? void (0) : __assert_fail ("Idx < Record.size() && \"Invalid data, not enough state change pairs in initial state\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5750, __extension__ __PRETTY_FUNCTION__)); | |||
5751 | } else if (F.isModule()) { | |||
5752 | // For an explicit module, preserve the flags from the module build | |||
5753 | // command line (-w, -Weverything, -Werror, ...) along with any explicit | |||
5754 | // -Wblah flags. | |||
5755 | unsigned Flags = Record[Idx++]; | |||
5756 | DiagState Initial; | |||
5757 | Initial.SuppressSystemWarnings = Flags & 1; Flags >>= 1; | |||
5758 | Initial.ErrorsAsFatal = Flags & 1; Flags >>= 1; | |||
5759 | Initial.WarningsAsErrors = Flags & 1; Flags >>= 1; | |||
5760 | Initial.EnableAllWarnings = Flags & 1; Flags >>= 1; | |||
5761 | Initial.IgnoreAllWarnings = Flags & 1; Flags >>= 1; | |||
5762 | Initial.ExtBehavior = (diag::Severity)Flags; | |||
5763 | FirstState = ReadDiagState(Initial, SourceLocation(), true); | |||
5764 | ||||
5765 | assert(F.OriginalSourceFileID.isValid())(static_cast <bool> (F.OriginalSourceFileID.isValid()) ? void (0) : __assert_fail ("F.OriginalSourceFileID.isValid()" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5765, __extension__ __PRETTY_FUNCTION__)); | |||
5766 | ||||
5767 | // Set up the root buffer of the module to start with the initial | |||
5768 | // diagnostic state of the module itself, to cover files that contain no | |||
5769 | // explicit transitions (for which we did not serialize anything). | |||
5770 | Diag.DiagStatesByLoc.Files[F.OriginalSourceFileID] | |||
5771 | .StateTransitions.push_back({FirstState, 0}); | |||
5772 | } else { | |||
5773 | // For prefix ASTs, start with whatever the user configured on the | |||
5774 | // command line. | |||
5775 | Idx++; // Skip flags. | |||
5776 | FirstState = ReadDiagState(*Diag.DiagStatesByLoc.CurDiagState, | |||
5777 | SourceLocation(), false); | |||
5778 | } | |||
5779 | ||||
5780 | // Read the state transitions. | |||
5781 | unsigned NumLocations = Record[Idx++]; | |||
5782 | while (NumLocations--) { | |||
5783 | assert(Idx < Record.size() &&(static_cast <bool> (Idx < Record.size() && "Invalid data, missing pragma diagnostic states" ) ? void (0) : __assert_fail ("Idx < Record.size() && \"Invalid data, missing pragma diagnostic states\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5784, __extension__ __PRETTY_FUNCTION__)) | |||
5784 | "Invalid data, missing pragma diagnostic states")(static_cast <bool> (Idx < Record.size() && "Invalid data, missing pragma diagnostic states" ) ? void (0) : __assert_fail ("Idx < Record.size() && \"Invalid data, missing pragma diagnostic states\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5784, __extension__ __PRETTY_FUNCTION__)); | |||
5785 | SourceLocation Loc = ReadSourceLocation(F, Record[Idx++]); | |||
5786 | auto IDAndOffset = SourceMgr.getDecomposedLoc(Loc); | |||
5787 | assert(IDAndOffset.first.isValid() && "invalid FileID for transition")(static_cast <bool> (IDAndOffset.first.isValid() && "invalid FileID for transition") ? void (0) : __assert_fail ( "IDAndOffset.first.isValid() && \"invalid FileID for transition\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5787, __extension__ __PRETTY_FUNCTION__)); | |||
5788 | assert(IDAndOffset.second == 0 && "not a start location for a FileID")(static_cast <bool> (IDAndOffset.second == 0 && "not a start location for a FileID") ? void (0) : __assert_fail ("IDAndOffset.second == 0 && \"not a start location for a FileID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5788, __extension__ __PRETTY_FUNCTION__)); | |||
5789 | unsigned Transitions = Record[Idx++]; | |||
5790 | ||||
5791 | // Note that we don't need to set up Parent/ParentOffset here, because | |||
5792 | // we won't be changing the diagnostic state within imported FileIDs | |||
5793 | // (other than perhaps appending to the main source file, which has no | |||
5794 | // parent). | |||
5795 | auto &F = Diag.DiagStatesByLoc.Files[IDAndOffset.first]; | |||
5796 | F.StateTransitions.reserve(F.StateTransitions.size() + Transitions); | |||
5797 | for (unsigned I = 0; I != Transitions; ++I) { | |||
5798 | unsigned Offset = Record[Idx++]; | |||
5799 | auto *State = | |||
5800 | ReadDiagState(*FirstState, Loc.getLocWithOffset(Offset), false); | |||
5801 | F.StateTransitions.push_back({State, Offset}); | |||
5802 | } | |||
5803 | } | |||
5804 | ||||
5805 | // Read the final state. | |||
5806 | assert(Idx < Record.size() &&(static_cast <bool> (Idx < Record.size() && "Invalid data, missing final pragma diagnostic state" ) ? void (0) : __assert_fail ("Idx < Record.size() && \"Invalid data, missing final pragma diagnostic state\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5807, __extension__ __PRETTY_FUNCTION__)) | |||
5807 | "Invalid data, missing final pragma diagnostic state")(static_cast <bool> (Idx < Record.size() && "Invalid data, missing final pragma diagnostic state" ) ? void (0) : __assert_fail ("Idx < Record.size() && \"Invalid data, missing final pragma diagnostic state\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5807, __extension__ __PRETTY_FUNCTION__)); | |||
5808 | SourceLocation CurStateLoc = | |||
5809 | ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]); | |||
5810 | auto *CurState = ReadDiagState(*FirstState, CurStateLoc, false); | |||
5811 | ||||
5812 | if (!F.isModule()) { | |||
5813 | Diag.DiagStatesByLoc.CurDiagState = CurState; | |||
5814 | Diag.DiagStatesByLoc.CurDiagStateLoc = CurStateLoc; | |||
5815 | ||||
5816 | // Preserve the property that the imaginary root file describes the | |||
5817 | // current state. | |||
5818 | FileID NullFile; | |||
5819 | auto &T = Diag.DiagStatesByLoc.Files[NullFile].StateTransitions; | |||
5820 | if (T.empty()) | |||
5821 | T.push_back({CurState, 0}); | |||
5822 | else | |||
5823 | T[0].State = CurState; | |||
5824 | } | |||
5825 | ||||
5826 | // Don't try to read these mappings again. | |||
5827 | Record.clear(); | |||
5828 | } | |||
5829 | } | |||
5830 | ||||
5831 | /// \brief Get the correct cursor and offset for loading a type. | |||
5832 | ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) { | |||
5833 | GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index); | |||
5834 | assert(I != GlobalTypeMap.end() && "Corrupted global type map")(static_cast <bool> (I != GlobalTypeMap.end() && "Corrupted global type map") ? void (0) : __assert_fail ("I != GlobalTypeMap.end() && \"Corrupted global type map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5834, __extension__ __PRETTY_FUNCTION__)); | |||
5835 | ModuleFile *M = I->second; | |||
5836 | return RecordLocation(M, M->TypeOffsets[Index - M->BaseTypeIndex]); | |||
5837 | } | |||
5838 | ||||
5839 | /// \brief Read and return the type with the given index.. | |||
5840 | /// | |||
5841 | /// The index is the type ID, shifted and minus the number of predefs. This | |||
5842 | /// routine actually reads the record corresponding to the type at the given | |||
5843 | /// location. It is a helper routine for GetType, which deals with reading type | |||
5844 | /// IDs. | |||
5845 | QualType ASTReader::readTypeRecord(unsigned Index) { | |||
5846 | assert(ContextObj && "reading type with no AST context")(static_cast <bool> (ContextObj && "reading type with no AST context" ) ? void (0) : __assert_fail ("ContextObj && \"reading type with no AST context\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 5846, __extension__ __PRETTY_FUNCTION__)); | |||
5847 | ASTContext &Context = *ContextObj; | |||
5848 | RecordLocation Loc = TypeCursorForIndex(Index); | |||
5849 | BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor; | |||
5850 | ||||
5851 | // Keep track of where we are in the stream, then jump back there | |||
5852 | // after reading this type. | |||
5853 | SavedStreamPosition SavedPosition(DeclsCursor); | |||
5854 | ||||
5855 | ReadingKindTracker ReadingKind(Read_Type, *this); | |||
5856 | ||||
5857 | // Note that we are loading a type record. | |||
5858 | Deserializing AType(this); | |||
5859 | ||||
5860 | unsigned Idx = 0; | |||
5861 | DeclsCursor.JumpToBit(Loc.Offset); | |||
5862 | RecordData Record; | |||
5863 | unsigned Code = DeclsCursor.ReadCode(); | |||
5864 | switch ((TypeCode)DeclsCursor.readRecord(Code, Record)) { | |||
5865 | case TYPE_EXT_QUAL: { | |||
5866 | if (Record.size() != 2) { | |||
5867 | Error("Incorrect encoding of extended qualifier type"); | |||
5868 | return QualType(); | |||
5869 | } | |||
5870 | QualType Base = readType(*Loc.F, Record, Idx); | |||
5871 | Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[Idx++]); | |||
5872 | return Context.getQualifiedType(Base, Quals); | |||
5873 | } | |||
5874 | ||||
5875 | case TYPE_COMPLEX: { | |||
5876 | if (Record.size() != 1) { | |||
5877 | Error("Incorrect encoding of complex type"); | |||
5878 | return QualType(); | |||
5879 | } | |||
5880 | QualType ElemType = readType(*Loc.F, Record, Idx); | |||
5881 | return Context.getComplexType(ElemType); | |||
5882 | } | |||
5883 | ||||
5884 | case TYPE_POINTER: { | |||
5885 | if (Record.size() != 1) { | |||
5886 | Error("Incorrect encoding of pointer type"); | |||
5887 | return QualType(); | |||
5888 | } | |||
5889 | QualType PointeeType = readType(*Loc.F, Record, Idx); | |||
5890 | return Context.getPointerType(PointeeType); | |||
5891 | } | |||
5892 | ||||
5893 | case TYPE_DECAYED: { | |||
5894 | if (Record.size() != 1) { | |||
5895 | Error("Incorrect encoding of decayed type"); | |||
5896 | return QualType(); | |||
5897 | } | |||
5898 | QualType OriginalType = readType(*Loc.F, Record, Idx); | |||
5899 | QualType DT = Context.getAdjustedParameterType(OriginalType); | |||
5900 | if (!isa<DecayedType>(DT)) | |||
5901 | Error("Decayed type does not decay"); | |||
5902 | return DT; | |||
5903 | } | |||
5904 | ||||
5905 | case TYPE_ADJUSTED: { | |||
5906 | if (Record.size() != 2) { | |||
5907 | Error("Incorrect encoding of adjusted type"); | |||
5908 | return QualType(); | |||
5909 | } | |||
5910 | QualType OriginalTy = readType(*Loc.F, Record, Idx); | |||
5911 | QualType AdjustedTy = readType(*Loc.F, Record, Idx); | |||
5912 | return Context.getAdjustedType(OriginalTy, AdjustedTy); | |||
5913 | } | |||
5914 | ||||
5915 | case TYPE_BLOCK_POINTER: { | |||
5916 | if (Record.size() != 1) { | |||
5917 | Error("Incorrect encoding of block pointer type"); | |||
5918 | return QualType(); | |||
5919 | } | |||
5920 | QualType PointeeType = readType(*Loc.F, Record, Idx); | |||
5921 | return Context.getBlockPointerType(PointeeType); | |||
5922 | } | |||
5923 | ||||
5924 | case TYPE_LVALUE_REFERENCE: { | |||
5925 | if (Record.size() != 2) { | |||
5926 | Error("Incorrect encoding of lvalue reference type"); | |||
5927 | return QualType(); | |||
5928 | } | |||
5929 | QualType PointeeType = readType(*Loc.F, Record, Idx); | |||
5930 | return Context.getLValueReferenceType(PointeeType, Record[1]); | |||
5931 | } | |||
5932 | ||||
5933 | case TYPE_RVALUE_REFERENCE: { | |||
5934 | if (Record.size() != 1) { | |||
5935 | Error("Incorrect encoding of rvalue reference type"); | |||
5936 | return QualType(); | |||
5937 | } | |||
5938 | QualType PointeeType = readType(*Loc.F, Record, Idx); | |||
5939 | return Context.getRValueReferenceType(PointeeType); | |||
5940 | } | |||
5941 | ||||
5942 | case TYPE_MEMBER_POINTER: { | |||
5943 | if (Record.size() != 2) { | |||
5944 | Error("Incorrect encoding of member pointer type"); | |||
5945 | return QualType(); | |||
5946 | } | |||
5947 | QualType PointeeType = readType(*Loc.F, Record, Idx); | |||
5948 | QualType ClassType = readType(*Loc.F, Record, Idx); | |||
5949 | if (PointeeType.isNull() || ClassType.isNull()) | |||
5950 | return QualType(); | |||
5951 | ||||
5952 | return Context.getMemberPointerType(PointeeType, ClassType.getTypePtr()); | |||
5953 | } | |||
5954 | ||||
5955 | case TYPE_CONSTANT_ARRAY: { | |||
5956 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
5957 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; | |||
5958 | unsigned IndexTypeQuals = Record[2]; | |||
5959 | unsigned Idx = 3; | |||
5960 | llvm::APInt Size = ReadAPInt(Record, Idx); | |||
5961 | return Context.getConstantArrayType(ElementType, Size, | |||
5962 | ASM, IndexTypeQuals); | |||
5963 | } | |||
5964 | ||||
5965 | case TYPE_INCOMPLETE_ARRAY: { | |||
5966 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
5967 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; | |||
5968 | unsigned IndexTypeQuals = Record[2]; | |||
5969 | return Context.getIncompleteArrayType(ElementType, ASM, IndexTypeQuals); | |||
5970 | } | |||
5971 | ||||
5972 | case TYPE_VARIABLE_ARRAY: { | |||
5973 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
5974 | ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1]; | |||
5975 | unsigned IndexTypeQuals = Record[2]; | |||
5976 | SourceLocation LBLoc = ReadSourceLocation(*Loc.F, Record[3]); | |||
5977 | SourceLocation RBLoc = ReadSourceLocation(*Loc.F, Record[4]); | |||
5978 | return Context.getVariableArrayType(ElementType, ReadExpr(*Loc.F), | |||
5979 | ASM, IndexTypeQuals, | |||
5980 | SourceRange(LBLoc, RBLoc)); | |||
5981 | } | |||
5982 | ||||
5983 | case TYPE_VECTOR: { | |||
5984 | if (Record.size() != 3) { | |||
5985 | Error("incorrect encoding of vector type in AST file"); | |||
5986 | return QualType(); | |||
5987 | } | |||
5988 | ||||
5989 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
5990 | unsigned NumElements = Record[1]; | |||
5991 | unsigned VecKind = Record[2]; | |||
5992 | return Context.getVectorType(ElementType, NumElements, | |||
5993 | (VectorType::VectorKind)VecKind); | |||
5994 | } | |||
5995 | ||||
5996 | case TYPE_EXT_VECTOR: { | |||
5997 | if (Record.size() != 3) { | |||
5998 | Error("incorrect encoding of extended vector type in AST file"); | |||
5999 | return QualType(); | |||
6000 | } | |||
6001 | ||||
6002 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
6003 | unsigned NumElements = Record[1]; | |||
6004 | return Context.getExtVectorType(ElementType, NumElements); | |||
6005 | } | |||
6006 | ||||
6007 | case TYPE_FUNCTION_NO_PROTO: { | |||
6008 | if (Record.size() != 8) { | |||
6009 | Error("incorrect encoding of no-proto function type"); | |||
6010 | return QualType(); | |||
6011 | } | |||
6012 | QualType ResultType = readType(*Loc.F, Record, Idx); | |||
6013 | FunctionType::ExtInfo Info(Record[1], Record[2], Record[3], | |||
6014 | (CallingConv)Record[4], Record[5], Record[6], | |||
6015 | Record[7]); | |||
6016 | return Context.getFunctionNoProtoType(ResultType, Info); | |||
6017 | } | |||
6018 | ||||
6019 | case TYPE_FUNCTION_PROTO: { | |||
6020 | QualType ResultType = readType(*Loc.F, Record, Idx); | |||
6021 | ||||
6022 | FunctionProtoType::ExtProtoInfo EPI; | |||
6023 | EPI.ExtInfo = FunctionType::ExtInfo(/*noreturn*/ Record[1], | |||
6024 | /*hasregparm*/ Record[2], | |||
6025 | /*regparm*/ Record[3], | |||
6026 | static_cast<CallingConv>(Record[4]), | |||
6027 | /*produces*/ Record[5], | |||
6028 | /*nocallersavedregs*/ Record[6], | |||
6029 | /*nocfcheck*/ Record[7]); | |||
6030 | ||||
6031 | unsigned Idx = 8; | |||
6032 | ||||
6033 | EPI.Variadic = Record[Idx++]; | |||
6034 | EPI.HasTrailingReturn = Record[Idx++]; | |||
6035 | EPI.TypeQuals = Record[Idx++]; | |||
6036 | EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]); | |||
6037 | SmallVector<QualType, 8> ExceptionStorage; | |||
6038 | readExceptionSpec(*Loc.F, ExceptionStorage, EPI.ExceptionSpec, Record, Idx); | |||
6039 | ||||
6040 | unsigned NumParams = Record[Idx++]; | |||
6041 | SmallVector<QualType, 16> ParamTypes; | |||
6042 | for (unsigned I = 0; I != NumParams; ++I) | |||
6043 | ParamTypes.push_back(readType(*Loc.F, Record, Idx)); | |||
6044 | ||||
6045 | SmallVector<FunctionProtoType::ExtParameterInfo, 4> ExtParameterInfos; | |||
6046 | if (Idx != Record.size()) { | |||
6047 | for (unsigned I = 0; I != NumParams; ++I) | |||
6048 | ExtParameterInfos.push_back( | |||
6049 | FunctionProtoType::ExtParameterInfo | |||
6050 | ::getFromOpaqueValue(Record[Idx++])); | |||
6051 | EPI.ExtParameterInfos = ExtParameterInfos.data(); | |||
6052 | } | |||
6053 | ||||
6054 | assert(Idx == Record.size())(static_cast <bool> (Idx == Record.size()) ? void (0) : __assert_fail ("Idx == Record.size()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6054, __extension__ __PRETTY_FUNCTION__)); | |||
6055 | ||||
6056 | return Context.getFunctionType(ResultType, ParamTypes, EPI); | |||
6057 | } | |||
6058 | ||||
6059 | case TYPE_UNRESOLVED_USING: { | |||
6060 | unsigned Idx = 0; | |||
6061 | return Context.getTypeDeclType( | |||
6062 | ReadDeclAs<UnresolvedUsingTypenameDecl>(*Loc.F, Record, Idx)); | |||
6063 | } | |||
6064 | ||||
6065 | case TYPE_TYPEDEF: { | |||
6066 | if (Record.size() != 2) { | |||
6067 | Error("incorrect encoding of typedef type"); | |||
6068 | return QualType(); | |||
6069 | } | |||
6070 | unsigned Idx = 0; | |||
6071 | TypedefNameDecl *Decl = ReadDeclAs<TypedefNameDecl>(*Loc.F, Record, Idx); | |||
6072 | QualType Canonical = readType(*Loc.F, Record, Idx); | |||
6073 | if (!Canonical.isNull()) | |||
6074 | Canonical = Context.getCanonicalType(Canonical); | |||
6075 | return Context.getTypedefType(Decl, Canonical); | |||
6076 | } | |||
6077 | ||||
6078 | case TYPE_TYPEOF_EXPR: | |||
6079 | return Context.getTypeOfExprType(ReadExpr(*Loc.F)); | |||
6080 | ||||
6081 | case TYPE_TYPEOF: { | |||
6082 | if (Record.size() != 1) { | |||
6083 | Error("incorrect encoding of typeof(type) in AST file"); | |||
6084 | return QualType(); | |||
6085 | } | |||
6086 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); | |||
6087 | return Context.getTypeOfType(UnderlyingType); | |||
6088 | } | |||
6089 | ||||
6090 | case TYPE_DECLTYPE: { | |||
6091 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); | |||
6092 | return Context.getDecltypeType(ReadExpr(*Loc.F), UnderlyingType); | |||
6093 | } | |||
6094 | ||||
6095 | case TYPE_UNARY_TRANSFORM: { | |||
6096 | QualType BaseType = readType(*Loc.F, Record, Idx); | |||
6097 | QualType UnderlyingType = readType(*Loc.F, Record, Idx); | |||
6098 | UnaryTransformType::UTTKind UKind = (UnaryTransformType::UTTKind)Record[2]; | |||
6099 | return Context.getUnaryTransformType(BaseType, UnderlyingType, UKind); | |||
6100 | } | |||
6101 | ||||
6102 | case TYPE_AUTO: { | |||
6103 | QualType Deduced = readType(*Loc.F, Record, Idx); | |||
6104 | AutoTypeKeyword Keyword = (AutoTypeKeyword)Record[Idx++]; | |||
6105 | bool IsDependent = Deduced.isNull() ? Record[Idx++] : false; | |||
6106 | return Context.getAutoType(Deduced, Keyword, IsDependent); | |||
6107 | } | |||
6108 | ||||
6109 | case TYPE_DEDUCED_TEMPLATE_SPECIALIZATION: { | |||
6110 | TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx); | |||
6111 | QualType Deduced = readType(*Loc.F, Record, Idx); | |||
6112 | bool IsDependent = Deduced.isNull() ? Record[Idx++] : false; | |||
6113 | return Context.getDeducedTemplateSpecializationType(Name, Deduced, | |||
6114 | IsDependent); | |||
6115 | } | |||
6116 | ||||
6117 | case TYPE_RECORD: { | |||
6118 | if (Record.size() != 2) { | |||
6119 | Error("incorrect encoding of record type"); | |||
6120 | return QualType(); | |||
6121 | } | |||
6122 | unsigned Idx = 0; | |||
6123 | bool IsDependent = Record[Idx++]; | |||
6124 | RecordDecl *RD = ReadDeclAs<RecordDecl>(*Loc.F, Record, Idx); | |||
6125 | RD = cast_or_null<RecordDecl>(RD->getCanonicalDecl()); | |||
6126 | QualType T = Context.getRecordType(RD); | |||
6127 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); | |||
6128 | return T; | |||
6129 | } | |||
6130 | ||||
6131 | case TYPE_ENUM: { | |||
6132 | if (Record.size() != 2) { | |||
6133 | Error("incorrect encoding of enum type"); | |||
6134 | return QualType(); | |||
6135 | } | |||
6136 | unsigned Idx = 0; | |||
6137 | bool IsDependent = Record[Idx++]; | |||
6138 | QualType T | |||
6139 | = Context.getEnumType(ReadDeclAs<EnumDecl>(*Loc.F, Record, Idx)); | |||
6140 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); | |||
6141 | return T; | |||
6142 | } | |||
6143 | ||||
6144 | case TYPE_ATTRIBUTED: { | |||
6145 | if (Record.size() != 3) { | |||
6146 | Error("incorrect encoding of attributed type"); | |||
6147 | return QualType(); | |||
6148 | } | |||
6149 | QualType modifiedType = readType(*Loc.F, Record, Idx); | |||
6150 | QualType equivalentType = readType(*Loc.F, Record, Idx); | |||
6151 | AttributedType::Kind kind = static_cast<AttributedType::Kind>(Record[2]); | |||
6152 | return Context.getAttributedType(kind, modifiedType, equivalentType); | |||
6153 | } | |||
6154 | ||||
6155 | case TYPE_PAREN: { | |||
6156 | if (Record.size() != 1) { | |||
6157 | Error("incorrect encoding of paren type"); | |||
6158 | return QualType(); | |||
6159 | } | |||
6160 | QualType InnerType = readType(*Loc.F, Record, Idx); | |||
6161 | return Context.getParenType(InnerType); | |||
6162 | } | |||
6163 | ||||
6164 | case TYPE_PACK_EXPANSION: { | |||
6165 | if (Record.size() != 2) { | |||
6166 | Error("incorrect encoding of pack expansion type"); | |||
6167 | return QualType(); | |||
6168 | } | |||
6169 | QualType Pattern = readType(*Loc.F, Record, Idx); | |||
6170 | if (Pattern.isNull()) | |||
6171 | return QualType(); | |||
6172 | Optional<unsigned> NumExpansions; | |||
6173 | if (Record[1]) | |||
6174 | NumExpansions = Record[1] - 1; | |||
6175 | return Context.getPackExpansionType(Pattern, NumExpansions); | |||
6176 | } | |||
6177 | ||||
6178 | case TYPE_ELABORATED: { | |||
6179 | unsigned Idx = 0; | |||
6180 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; | |||
6181 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); | |||
6182 | QualType NamedType = readType(*Loc.F, Record, Idx); | |||
6183 | return Context.getElaboratedType(Keyword, NNS, NamedType); | |||
6184 | } | |||
6185 | ||||
6186 | case TYPE_OBJC_INTERFACE: { | |||
6187 | unsigned Idx = 0; | |||
6188 | ObjCInterfaceDecl *ItfD | |||
6189 | = ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx); | |||
6190 | return Context.getObjCInterfaceType(ItfD->getCanonicalDecl()); | |||
6191 | } | |||
6192 | ||||
6193 | case TYPE_OBJC_TYPE_PARAM: { | |||
6194 | unsigned Idx = 0; | |||
6195 | ObjCTypeParamDecl *Decl | |||
6196 | = ReadDeclAs<ObjCTypeParamDecl>(*Loc.F, Record, Idx); | |||
6197 | unsigned NumProtos = Record[Idx++]; | |||
6198 | SmallVector<ObjCProtocolDecl*, 4> Protos; | |||
6199 | for (unsigned I = 0; I != NumProtos; ++I) | |||
6200 | Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx)); | |||
6201 | return Context.getObjCTypeParamType(Decl, Protos); | |||
6202 | } | |||
6203 | ||||
6204 | case TYPE_OBJC_OBJECT: { | |||
6205 | unsigned Idx = 0; | |||
6206 | QualType Base = readType(*Loc.F, Record, Idx); | |||
6207 | unsigned NumTypeArgs = Record[Idx++]; | |||
6208 | SmallVector<QualType, 4> TypeArgs; | |||
6209 | for (unsigned I = 0; I != NumTypeArgs; ++I) | |||
6210 | TypeArgs.push_back(readType(*Loc.F, Record, Idx)); | |||
6211 | unsigned NumProtos = Record[Idx++]; | |||
6212 | SmallVector<ObjCProtocolDecl*, 4> Protos; | |||
6213 | for (unsigned I = 0; I != NumProtos; ++I) | |||
6214 | Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx)); | |||
6215 | bool IsKindOf = Record[Idx++]; | |||
6216 | return Context.getObjCObjectType(Base, TypeArgs, Protos, IsKindOf); | |||
6217 | } | |||
6218 | ||||
6219 | case TYPE_OBJC_OBJECT_POINTER: { | |||
6220 | unsigned Idx = 0; | |||
6221 | QualType Pointee = readType(*Loc.F, Record, Idx); | |||
6222 | return Context.getObjCObjectPointerType(Pointee); | |||
6223 | } | |||
6224 | ||||
6225 | case TYPE_SUBST_TEMPLATE_TYPE_PARM: { | |||
6226 | unsigned Idx = 0; | |||
6227 | QualType Parm = readType(*Loc.F, Record, Idx); | |||
6228 | QualType Replacement = readType(*Loc.F, Record, Idx); | |||
6229 | return Context.getSubstTemplateTypeParmType( | |||
6230 | cast<TemplateTypeParmType>(Parm), | |||
6231 | Context.getCanonicalType(Replacement)); | |||
6232 | } | |||
6233 | ||||
6234 | case TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK: { | |||
6235 | unsigned Idx = 0; | |||
6236 | QualType Parm = readType(*Loc.F, Record, Idx); | |||
6237 | TemplateArgument ArgPack = ReadTemplateArgument(*Loc.F, Record, Idx); | |||
6238 | return Context.getSubstTemplateTypeParmPackType( | |||
6239 | cast<TemplateTypeParmType>(Parm), | |||
6240 | ArgPack); | |||
6241 | } | |||
6242 | ||||
6243 | case TYPE_INJECTED_CLASS_NAME: { | |||
6244 | CXXRecordDecl *D = ReadDeclAs<CXXRecordDecl>(*Loc.F, Record, Idx); | |||
6245 | QualType TST = readType(*Loc.F, Record, Idx); // probably derivable | |||
6246 | // FIXME: ASTContext::getInjectedClassNameType is not currently suitable | |||
6247 | // for AST reading, too much interdependencies. | |||
6248 | const Type *T = nullptr; | |||
6249 | for (auto *DI = D; DI; DI = DI->getPreviousDecl()) { | |||
6250 | if (const Type *Existing = DI->getTypeForDecl()) { | |||
6251 | T = Existing; | |||
6252 | break; | |||
6253 | } | |||
6254 | } | |||
6255 | if (!T) { | |||
6256 | T = new (Context, TypeAlignment) InjectedClassNameType(D, TST); | |||
6257 | for (auto *DI = D; DI; DI = DI->getPreviousDecl()) | |||
6258 | DI->setTypeForDecl(T); | |||
6259 | } | |||
6260 | return QualType(T, 0); | |||
6261 | } | |||
6262 | ||||
6263 | case TYPE_TEMPLATE_TYPE_PARM: { | |||
6264 | unsigned Idx = 0; | |||
6265 | unsigned Depth = Record[Idx++]; | |||
6266 | unsigned Index = Record[Idx++]; | |||
6267 | bool Pack = Record[Idx++]; | |||
6268 | TemplateTypeParmDecl *D | |||
6269 | = ReadDeclAs<TemplateTypeParmDecl>(*Loc.F, Record, Idx); | |||
6270 | return Context.getTemplateTypeParmType(Depth, Index, Pack, D); | |||
6271 | } | |||
6272 | ||||
6273 | case TYPE_DEPENDENT_NAME: { | |||
6274 | unsigned Idx = 0; | |||
6275 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; | |||
6276 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); | |||
6277 | const IdentifierInfo *Name = GetIdentifierInfo(*Loc.F, Record, Idx); | |||
6278 | QualType Canon = readType(*Loc.F, Record, Idx); | |||
6279 | if (!Canon.isNull()) | |||
6280 | Canon = Context.getCanonicalType(Canon); | |||
6281 | return Context.getDependentNameType(Keyword, NNS, Name, Canon); | |||
6282 | } | |||
6283 | ||||
6284 | case TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: { | |||
6285 | unsigned Idx = 0; | |||
6286 | ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++]; | |||
6287 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx); | |||
6288 | const IdentifierInfo *Name = GetIdentifierInfo(*Loc.F, Record, Idx); | |||
6289 | unsigned NumArgs = Record[Idx++]; | |||
6290 | SmallVector<TemplateArgument, 8> Args; | |||
6291 | Args.reserve(NumArgs); | |||
6292 | while (NumArgs--) | |||
6293 | Args.push_back(ReadTemplateArgument(*Loc.F, Record, Idx)); | |||
6294 | return Context.getDependentTemplateSpecializationType(Keyword, NNS, Name, | |||
6295 | Args); | |||
6296 | } | |||
6297 | ||||
6298 | case TYPE_DEPENDENT_SIZED_ARRAY: { | |||
6299 | unsigned Idx = 0; | |||
6300 | ||||
6301 | // ArrayType | |||
6302 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
6303 | ArrayType::ArraySizeModifier ASM | |||
6304 | = (ArrayType::ArraySizeModifier)Record[Idx++]; | |||
6305 | unsigned IndexTypeQuals = Record[Idx++]; | |||
6306 | ||||
6307 | // DependentSizedArrayType | |||
6308 | Expr *NumElts = ReadExpr(*Loc.F); | |||
6309 | SourceRange Brackets = ReadSourceRange(*Loc.F, Record, Idx); | |||
6310 | ||||
6311 | return Context.getDependentSizedArrayType(ElementType, NumElts, ASM, | |||
6312 | IndexTypeQuals, Brackets); | |||
6313 | } | |||
6314 | ||||
6315 | case TYPE_TEMPLATE_SPECIALIZATION: { | |||
6316 | unsigned Idx = 0; | |||
6317 | bool IsDependent = Record[Idx++]; | |||
6318 | TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx); | |||
6319 | SmallVector<TemplateArgument, 8> Args; | |||
6320 | ReadTemplateArgumentList(Args, *Loc.F, Record, Idx); | |||
6321 | QualType Underlying = readType(*Loc.F, Record, Idx); | |||
6322 | QualType T; | |||
6323 | if (Underlying.isNull()) | |||
6324 | T = Context.getCanonicalTemplateSpecializationType(Name, Args); | |||
6325 | else | |||
6326 | T = Context.getTemplateSpecializationType(Name, Args, Underlying); | |||
6327 | const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent); | |||
6328 | return T; | |||
6329 | } | |||
6330 | ||||
6331 | case TYPE_ATOMIC: { | |||
6332 | if (Record.size() != 1) { | |||
6333 | Error("Incorrect encoding of atomic type"); | |||
6334 | return QualType(); | |||
6335 | } | |||
6336 | QualType ValueType = readType(*Loc.F, Record, Idx); | |||
6337 | return Context.getAtomicType(ValueType); | |||
6338 | } | |||
6339 | ||||
6340 | case TYPE_PIPE: { | |||
6341 | if (Record.size() != 2) { | |||
6342 | Error("Incorrect encoding of pipe type"); | |||
6343 | return QualType(); | |||
6344 | } | |||
6345 | ||||
6346 | // Reading the pipe element type. | |||
6347 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
6348 | unsigned ReadOnly = Record[1]; | |||
6349 | return Context.getPipeType(ElementType, ReadOnly); | |||
6350 | } | |||
6351 | ||||
6352 | case TYPE_DEPENDENT_SIZED_EXT_VECTOR: { | |||
6353 | unsigned Idx = 0; | |||
6354 | ||||
6355 | // DependentSizedExtVectorType | |||
6356 | QualType ElementType = readType(*Loc.F, Record, Idx); | |||
6357 | Expr *SizeExpr = ReadExpr(*Loc.F); | |||
6358 | SourceLocation AttrLoc = ReadSourceLocation(*Loc.F, Record, Idx); | |||
6359 | ||||
6360 | return Context.getDependentSizedExtVectorType(ElementType, SizeExpr, | |||
6361 | AttrLoc); | |||
6362 | } | |||
6363 | ||||
6364 | case TYPE_DEPENDENT_ADDRESS_SPACE: { | |||
6365 | unsigned Idx = 0; | |||
6366 | ||||
6367 | // DependentAddressSpaceType | |||
6368 | QualType PointeeType = readType(*Loc.F, Record, Idx); | |||
6369 | Expr *AddrSpaceExpr = ReadExpr(*Loc.F); | |||
6370 | SourceLocation AttrLoc = ReadSourceLocation(*Loc.F, Record, Idx); | |||
6371 | ||||
6372 | return Context.getDependentAddressSpaceType(PointeeType, AddrSpaceExpr, | |||
6373 | AttrLoc); | |||
6374 | } | |||
6375 | } | |||
6376 | llvm_unreachable("Invalid TypeCode!")::llvm::llvm_unreachable_internal("Invalid TypeCode!", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6376); | |||
6377 | } | |||
6378 | ||||
6379 | void ASTReader::readExceptionSpec(ModuleFile &ModuleFile, | |||
6380 | SmallVectorImpl<QualType> &Exceptions, | |||
6381 | FunctionProtoType::ExceptionSpecInfo &ESI, | |||
6382 | const RecordData &Record, unsigned &Idx) { | |||
6383 | ExceptionSpecificationType EST = | |||
6384 | static_cast<ExceptionSpecificationType>(Record[Idx++]); | |||
6385 | ESI.Type = EST; | |||
6386 | if (EST == EST_Dynamic) { | |||
6387 | for (unsigned I = 0, N = Record[Idx++]; I != N; ++I) | |||
6388 | Exceptions.push_back(readType(ModuleFile, Record, Idx)); | |||
6389 | ESI.Exceptions = Exceptions; | |||
6390 | } else if (EST == EST_ComputedNoexcept) { | |||
6391 | ESI.NoexceptExpr = ReadExpr(ModuleFile); | |||
6392 | } else if (EST == EST_Uninstantiated) { | |||
6393 | ESI.SourceDecl = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx); | |||
6394 | ESI.SourceTemplate = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx); | |||
6395 | } else if (EST == EST_Unevaluated) { | |||
6396 | ESI.SourceDecl = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx); | |||
6397 | } | |||
6398 | } | |||
6399 | ||||
6400 | namespace clang { | |||
6401 | ||||
6402 | class TypeLocReader : public TypeLocVisitor<TypeLocReader> { | |||
6403 | ModuleFile *F; | |||
6404 | ASTReader *Reader; | |||
6405 | const ASTReader::RecordData &Record; | |||
6406 | unsigned &Idx; | |||
6407 | ||||
6408 | SourceLocation ReadSourceLocation() { | |||
6409 | return Reader->ReadSourceLocation(*F, Record, Idx); | |||
6410 | } | |||
6411 | ||||
6412 | TypeSourceInfo *GetTypeSourceInfo() { | |||
6413 | return Reader->GetTypeSourceInfo(*F, Record, Idx); | |||
6414 | } | |||
6415 | ||||
6416 | NestedNameSpecifierLoc ReadNestedNameSpecifierLoc() { | |||
6417 | return Reader->ReadNestedNameSpecifierLoc(*F, Record, Idx); | |||
6418 | } | |||
6419 | ||||
6420 | public: | |||
6421 | TypeLocReader(ModuleFile &F, ASTReader &Reader, | |||
6422 | const ASTReader::RecordData &Record, unsigned &Idx) | |||
6423 | : F(&F), Reader(&Reader), Record(Record), Idx(Idx) {} | |||
6424 | ||||
6425 | // We want compile-time assurance that we've enumerated all of | |||
6426 | // these, so unfortunately we have to declare them first, then | |||
6427 | // define them out-of-line. | |||
6428 | #define ABSTRACT_TYPELOC(CLASS, PARENT) | |||
6429 | #define TYPELOC(CLASS, PARENT) \ | |||
6430 | void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc); | |||
6431 | #include "clang/AST/TypeLocNodes.def" | |||
6432 | ||||
6433 | void VisitFunctionTypeLoc(FunctionTypeLoc); | |||
6434 | void VisitArrayTypeLoc(ArrayTypeLoc); | |||
6435 | }; | |||
6436 | ||||
6437 | } // namespace clang | |||
6438 | ||||
6439 | void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { | |||
6440 | // nothing to do | |||
6441 | } | |||
6442 | ||||
6443 | void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { | |||
6444 | TL.setBuiltinLoc(ReadSourceLocation()); | |||
6445 | if (TL.needsExtraLocalData()) { | |||
6446 | TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++])); | |||
6447 | TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++])); | |||
6448 | TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++])); | |||
6449 | TL.setModeAttr(Record[Idx++]); | |||
6450 | } | |||
6451 | } | |||
6452 | ||||
6453 | void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) { | |||
6454 | TL.setNameLoc(ReadSourceLocation()); | |||
6455 | } | |||
6456 | ||||
6457 | void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) { | |||
6458 | TL.setStarLoc(ReadSourceLocation()); | |||
6459 | } | |||
6460 | ||||
6461 | void TypeLocReader::VisitDecayedTypeLoc(DecayedTypeLoc TL) { | |||
6462 | // nothing to do | |||
6463 | } | |||
6464 | ||||
6465 | void TypeLocReader::VisitAdjustedTypeLoc(AdjustedTypeLoc TL) { | |||
6466 | // nothing to do | |||
6467 | } | |||
6468 | ||||
6469 | void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { | |||
6470 | TL.setCaretLoc(ReadSourceLocation()); | |||
6471 | } | |||
6472 | ||||
6473 | void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { | |||
6474 | TL.setAmpLoc(ReadSourceLocation()); | |||
6475 | } | |||
6476 | ||||
6477 | void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { | |||
6478 | TL.setAmpAmpLoc(ReadSourceLocation()); | |||
6479 | } | |||
6480 | ||||
6481 | void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { | |||
6482 | TL.setStarLoc(ReadSourceLocation()); | |||
6483 | TL.setClassTInfo(GetTypeSourceInfo()); | |||
6484 | } | |||
6485 | ||||
6486 | void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) { | |||
6487 | TL.setLBracketLoc(ReadSourceLocation()); | |||
6488 | TL.setRBracketLoc(ReadSourceLocation()); | |||
6489 | if (Record[Idx++]) | |||
6490 | TL.setSizeExpr(Reader->ReadExpr(*F)); | |||
6491 | else | |||
6492 | TL.setSizeExpr(nullptr); | |||
6493 | } | |||
6494 | ||||
6495 | void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) { | |||
6496 | VisitArrayTypeLoc(TL); | |||
6497 | } | |||
6498 | ||||
6499 | void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) { | |||
6500 | VisitArrayTypeLoc(TL); | |||
6501 | } | |||
6502 | ||||
6503 | void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) { | |||
6504 | VisitArrayTypeLoc(TL); | |||
6505 | } | |||
6506 | ||||
6507 | void TypeLocReader::VisitDependentSizedArrayTypeLoc( | |||
6508 | DependentSizedArrayTypeLoc TL) { | |||
6509 | VisitArrayTypeLoc(TL); | |||
6510 | } | |||
6511 | ||||
6512 | void TypeLocReader::VisitDependentAddressSpaceTypeLoc( | |||
6513 | DependentAddressSpaceTypeLoc TL) { | |||
6514 | ||||
6515 | TL.setAttrNameLoc(ReadSourceLocation()); | |||
6516 | SourceRange range; | |||
6517 | range.setBegin(ReadSourceLocation()); | |||
6518 | range.setEnd(ReadSourceLocation()); | |||
6519 | TL.setAttrOperandParensRange(range); | |||
6520 | TL.setAttrExprOperand(Reader->ReadExpr(*F)); | |||
6521 | } | |||
6522 | ||||
6523 | void TypeLocReader::VisitDependentSizedExtVectorTypeLoc( | |||
6524 | DependentSizedExtVectorTypeLoc TL) { | |||
6525 | TL.setNameLoc(ReadSourceLocation()); | |||
6526 | } | |||
6527 | ||||
6528 | void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) { | |||
6529 | TL.setNameLoc(ReadSourceLocation()); | |||
6530 | } | |||
6531 | ||||
6532 | void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) { | |||
6533 | TL.setNameLoc(ReadSourceLocation()); | |||
6534 | } | |||
6535 | ||||
6536 | void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) { | |||
6537 | TL.setLocalRangeBegin(ReadSourceLocation()); | |||
6538 | TL.setLParenLoc(ReadSourceLocation()); | |||
6539 | TL.setRParenLoc(ReadSourceLocation()); | |||
6540 | TL.setExceptionSpecRange(SourceRange(Reader->ReadSourceLocation(*F, Record, Idx), | |||
6541 | Reader->ReadSourceLocation(*F, Record, Idx))); | |||
6542 | TL.setLocalRangeEnd(ReadSourceLocation()); | |||
6543 | for (unsigned i = 0, e = TL.getNumParams(); i != e; ++i) { | |||
6544 | TL.setParam(i, Reader->ReadDeclAs<ParmVarDecl>(*F, Record, Idx)); | |||
6545 | } | |||
6546 | } | |||
6547 | ||||
6548 | void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) { | |||
6549 | VisitFunctionTypeLoc(TL); | |||
6550 | } | |||
6551 | ||||
6552 | void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) { | |||
6553 | VisitFunctionTypeLoc(TL); | |||
6554 | } | |||
6555 | ||||
6556 | void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) { | |||
6557 | TL.setNameLoc(ReadSourceLocation()); | |||
6558 | } | |||
6559 | ||||
6560 | void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) { | |||
6561 | TL.setNameLoc(ReadSourceLocation()); | |||
6562 | } | |||
6563 | ||||
6564 | void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { | |||
6565 | TL.setTypeofLoc(ReadSourceLocation()); | |||
6566 | TL.setLParenLoc(ReadSourceLocation()); | |||
6567 | TL.setRParenLoc(ReadSourceLocation()); | |||
6568 | } | |||
6569 | ||||
6570 | void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { | |||
6571 | TL.setTypeofLoc(ReadSourceLocation()); | |||
6572 | TL.setLParenLoc(ReadSourceLocation()); | |||
6573 | TL.setRParenLoc(ReadSourceLocation()); | |||
6574 | TL.setUnderlyingTInfo(GetTypeSourceInfo()); | |||
6575 | } | |||
6576 | ||||
6577 | void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) { | |||
6578 | TL.setNameLoc(ReadSourceLocation()); | |||
6579 | } | |||
6580 | ||||
6581 | void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { | |||
6582 | TL.setKWLoc(ReadSourceLocation()); | |||
6583 | TL.setLParenLoc(ReadSourceLocation()); | |||
6584 | TL.setRParenLoc(ReadSourceLocation()); | |||
6585 | TL.setUnderlyingTInfo(GetTypeSourceInfo()); | |||
6586 | } | |||
6587 | ||||
6588 | void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) { | |||
6589 | TL.setNameLoc(ReadSourceLocation()); | |||
6590 | } | |||
6591 | ||||
6592 | void TypeLocReader::VisitDeducedTemplateSpecializationTypeLoc( | |||
6593 | DeducedTemplateSpecializationTypeLoc TL) { | |||
6594 | TL.setTemplateNameLoc(ReadSourceLocation()); | |||
6595 | } | |||
6596 | ||||
6597 | void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) { | |||
6598 | TL.setNameLoc(ReadSourceLocation()); | |||
6599 | } | |||
6600 | ||||
6601 | void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) { | |||
6602 | TL.setNameLoc(ReadSourceLocation()); | |||
6603 | } | |||
6604 | ||||
6605 | void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) { | |||
6606 | TL.setAttrNameLoc(ReadSourceLocation()); | |||
6607 | if (TL.hasAttrOperand()) { | |||
6608 | SourceRange range; | |||
6609 | range.setBegin(ReadSourceLocation()); | |||
6610 | range.setEnd(ReadSourceLocation()); | |||
6611 | TL.setAttrOperandParensRange(range); | |||
6612 | } | |||
6613 | if (TL.hasAttrExprOperand()) { | |||
6614 | if (Record[Idx++]) | |||
6615 | TL.setAttrExprOperand(Reader->ReadExpr(*F)); | |||
6616 | else | |||
6617 | TL.setAttrExprOperand(nullptr); | |||
6618 | } else if (TL.hasAttrEnumOperand()) | |||
6619 | TL.setAttrEnumOperandLoc(ReadSourceLocation()); | |||
6620 | } | |||
6621 | ||||
6622 | void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) { | |||
6623 | TL.setNameLoc(ReadSourceLocation()); | |||
6624 | } | |||
6625 | ||||
6626 | void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc( | |||
6627 | SubstTemplateTypeParmTypeLoc TL) { | |||
6628 | TL.setNameLoc(ReadSourceLocation()); | |||
6629 | } | |||
6630 | ||||
6631 | void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc( | |||
6632 | SubstTemplateTypeParmPackTypeLoc TL) { | |||
6633 | TL.setNameLoc(ReadSourceLocation()); | |||
6634 | } | |||
6635 | ||||
6636 | void TypeLocReader::VisitTemplateSpecializationTypeLoc( | |||
6637 | TemplateSpecializationTypeLoc TL) { | |||
6638 | TL.setTemplateKeywordLoc(ReadSourceLocation()); | |||
6639 | TL.setTemplateNameLoc(ReadSourceLocation()); | |||
6640 | TL.setLAngleLoc(ReadSourceLocation()); | |||
6641 | TL.setRAngleLoc(ReadSourceLocation()); | |||
6642 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) | |||
6643 | TL.setArgLocInfo( | |||
6644 | i, | |||
6645 | Reader->GetTemplateArgumentLocInfo( | |||
6646 | *F, TL.getTypePtr()->getArg(i).getKind(), Record, Idx)); | |||
6647 | } | |||
6648 | ||||
6649 | void TypeLocReader::VisitParenTypeLoc(ParenTypeLoc TL) { | |||
6650 | TL.setLParenLoc(ReadSourceLocation()); | |||
6651 | TL.setRParenLoc(ReadSourceLocation()); | |||
6652 | } | |||
6653 | ||||
6654 | void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { | |||
6655 | TL.setElaboratedKeywordLoc(ReadSourceLocation()); | |||
6656 | TL.setQualifierLoc(ReadNestedNameSpecifierLoc()); | |||
6657 | } | |||
6658 | ||||
6659 | void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) { | |||
6660 | TL.setNameLoc(ReadSourceLocation()); | |||
6661 | } | |||
6662 | ||||
6663 | void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { | |||
6664 | TL.setElaboratedKeywordLoc(ReadSourceLocation()); | |||
6665 | TL.setQualifierLoc(ReadNestedNameSpecifierLoc()); | |||
6666 | TL.setNameLoc(ReadSourceLocation()); | |||
6667 | } | |||
6668 | ||||
6669 | void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc( | |||
6670 | DependentTemplateSpecializationTypeLoc TL) { | |||
6671 | TL.setElaboratedKeywordLoc(ReadSourceLocation()); | |||
6672 | TL.setQualifierLoc(ReadNestedNameSpecifierLoc()); | |||
6673 | TL.setTemplateKeywordLoc(ReadSourceLocation()); | |||
6674 | TL.setTemplateNameLoc(ReadSourceLocation()); | |||
6675 | TL.setLAngleLoc(ReadSourceLocation()); | |||
6676 | TL.setRAngleLoc(ReadSourceLocation()); | |||
6677 | for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I) | |||
6678 | TL.setArgLocInfo( | |||
6679 | I, | |||
6680 | Reader->GetTemplateArgumentLocInfo( | |||
6681 | *F, TL.getTypePtr()->getArg(I).getKind(), Record, Idx)); | |||
6682 | } | |||
6683 | ||||
6684 | void TypeLocReader::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) { | |||
6685 | TL.setEllipsisLoc(ReadSourceLocation()); | |||
6686 | } | |||
6687 | ||||
6688 | void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { | |||
6689 | TL.setNameLoc(ReadSourceLocation()); | |||
6690 | } | |||
6691 | ||||
6692 | void TypeLocReader::VisitObjCTypeParamTypeLoc(ObjCTypeParamTypeLoc TL) { | |||
6693 | if (TL.getNumProtocols()) { | |||
6694 | TL.setProtocolLAngleLoc(ReadSourceLocation()); | |||
6695 | TL.setProtocolRAngleLoc(ReadSourceLocation()); | |||
6696 | } | |||
6697 | for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i) | |||
6698 | TL.setProtocolLoc(i, ReadSourceLocation()); | |||
6699 | } | |||
6700 | ||||
6701 | void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { | |||
6702 | TL.setHasBaseTypeAsWritten(Record[Idx++]); | |||
6703 | TL.setTypeArgsLAngleLoc(ReadSourceLocation()); | |||
6704 | TL.setTypeArgsRAngleLoc(ReadSourceLocation()); | |||
6705 | for (unsigned i = 0, e = TL.getNumTypeArgs(); i != e; ++i) | |||
6706 | TL.setTypeArgTInfo(i, GetTypeSourceInfo()); | |||
6707 | TL.setProtocolLAngleLoc(ReadSourceLocation()); | |||
6708 | TL.setProtocolRAngleLoc(ReadSourceLocation()); | |||
6709 | for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i) | |||
6710 | TL.setProtocolLoc(i, ReadSourceLocation()); | |||
6711 | } | |||
6712 | ||||
6713 | void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { | |||
6714 | TL.setStarLoc(ReadSourceLocation()); | |||
6715 | } | |||
6716 | ||||
6717 | void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) { | |||
6718 | TL.setKWLoc(ReadSourceLocation()); | |||
6719 | TL.setLParenLoc(ReadSourceLocation()); | |||
6720 | TL.setRParenLoc(ReadSourceLocation()); | |||
6721 | } | |||
6722 | ||||
6723 | void TypeLocReader::VisitPipeTypeLoc(PipeTypeLoc TL) { | |||
6724 | TL.setKWLoc(ReadSourceLocation()); | |||
6725 | } | |||
6726 | ||||
6727 | TypeSourceInfo * | |||
6728 | ASTReader::GetTypeSourceInfo(ModuleFile &F, const ASTReader::RecordData &Record, | |||
6729 | unsigned &Idx) { | |||
6730 | QualType InfoTy = readType(F, Record, Idx); | |||
6731 | if (InfoTy.isNull()) | |||
6732 | return nullptr; | |||
6733 | ||||
6734 | TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy); | |||
6735 | TypeLocReader TLR(F, *this, Record, Idx); | |||
6736 | for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc()) | |||
6737 | TLR.Visit(TL); | |||
6738 | return TInfo; | |||
6739 | } | |||
6740 | ||||
6741 | QualType ASTReader::GetType(TypeID ID) { | |||
6742 | assert(ContextObj && "reading type with no AST context")(static_cast <bool> (ContextObj && "reading type with no AST context" ) ? void (0) : __assert_fail ("ContextObj && \"reading type with no AST context\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6742, __extension__ __PRETTY_FUNCTION__)); | |||
6743 | ASTContext &Context = *ContextObj; | |||
6744 | ||||
6745 | unsigned FastQuals = ID & Qualifiers::FastMask; | |||
6746 | unsigned Index = ID >> Qualifiers::FastWidth; | |||
6747 | ||||
6748 | if (Index < NUM_PREDEF_TYPE_IDS) { | |||
6749 | QualType T; | |||
6750 | switch ((PredefinedTypeIDs)Index) { | |||
6751 | case PREDEF_TYPE_NULL_ID: | |||
6752 | return QualType(); | |||
6753 | case PREDEF_TYPE_VOID_ID: | |||
6754 | T = Context.VoidTy; | |||
6755 | break; | |||
6756 | case PREDEF_TYPE_BOOL_ID: | |||
6757 | T = Context.BoolTy; | |||
6758 | break; | |||
6759 | case PREDEF_TYPE_CHAR_U_ID: | |||
6760 | case PREDEF_TYPE_CHAR_S_ID: | |||
6761 | // FIXME: Check that the signedness of CharTy is correct! | |||
6762 | T = Context.CharTy; | |||
6763 | break; | |||
6764 | case PREDEF_TYPE_UCHAR_ID: | |||
6765 | T = Context.UnsignedCharTy; | |||
6766 | break; | |||
6767 | case PREDEF_TYPE_USHORT_ID: | |||
6768 | T = Context.UnsignedShortTy; | |||
6769 | break; | |||
6770 | case PREDEF_TYPE_UINT_ID: | |||
6771 | T = Context.UnsignedIntTy; | |||
6772 | break; | |||
6773 | case PREDEF_TYPE_ULONG_ID: | |||
6774 | T = Context.UnsignedLongTy; | |||
6775 | break; | |||
6776 | case PREDEF_TYPE_ULONGLONG_ID: | |||
6777 | T = Context.UnsignedLongLongTy; | |||
6778 | break; | |||
6779 | case PREDEF_TYPE_UINT128_ID: | |||
6780 | T = Context.UnsignedInt128Ty; | |||
6781 | break; | |||
6782 | case PREDEF_TYPE_SCHAR_ID: | |||
6783 | T = Context.SignedCharTy; | |||
6784 | break; | |||
6785 | case PREDEF_TYPE_WCHAR_ID: | |||
6786 | T = Context.WCharTy; | |||
6787 | break; | |||
6788 | case PREDEF_TYPE_SHORT_ID: | |||
6789 | T = Context.ShortTy; | |||
6790 | break; | |||
6791 | case PREDEF_TYPE_INT_ID: | |||
6792 | T = Context.IntTy; | |||
6793 | break; | |||
6794 | case PREDEF_TYPE_LONG_ID: | |||
6795 | T = Context.LongTy; | |||
6796 | break; | |||
6797 | case PREDEF_TYPE_LONGLONG_ID: | |||
6798 | T = Context.LongLongTy; | |||
6799 | break; | |||
6800 | case PREDEF_TYPE_INT128_ID: | |||
6801 | T = Context.Int128Ty; | |||
6802 | break; | |||
6803 | case PREDEF_TYPE_HALF_ID: | |||
6804 | T = Context.HalfTy; | |||
6805 | break; | |||
6806 | case PREDEF_TYPE_FLOAT_ID: | |||
6807 | T = Context.FloatTy; | |||
6808 | break; | |||
6809 | case PREDEF_TYPE_DOUBLE_ID: | |||
6810 | T = Context.DoubleTy; | |||
6811 | break; | |||
6812 | case PREDEF_TYPE_LONGDOUBLE_ID: | |||
6813 | T = Context.LongDoubleTy; | |||
6814 | break; | |||
6815 | case PREDEF_TYPE_FLOAT16_ID: | |||
6816 | T = Context.Float16Ty; | |||
6817 | break; | |||
6818 | case PREDEF_TYPE_FLOAT128_ID: | |||
6819 | T = Context.Float128Ty; | |||
6820 | break; | |||
6821 | case PREDEF_TYPE_OVERLOAD_ID: | |||
6822 | T = Context.OverloadTy; | |||
6823 | break; | |||
6824 | case PREDEF_TYPE_BOUND_MEMBER: | |||
6825 | T = Context.BoundMemberTy; | |||
6826 | break; | |||
6827 | case PREDEF_TYPE_PSEUDO_OBJECT: | |||
6828 | T = Context.PseudoObjectTy; | |||
6829 | break; | |||
6830 | case PREDEF_TYPE_DEPENDENT_ID: | |||
6831 | T = Context.DependentTy; | |||
6832 | break; | |||
6833 | case PREDEF_TYPE_UNKNOWN_ANY: | |||
6834 | T = Context.UnknownAnyTy; | |||
6835 | break; | |||
6836 | case PREDEF_TYPE_NULLPTR_ID: | |||
6837 | T = Context.NullPtrTy; | |||
6838 | break; | |||
6839 | case PREDEF_TYPE_CHAR16_ID: | |||
6840 | T = Context.Char16Ty; | |||
6841 | break; | |||
6842 | case PREDEF_TYPE_CHAR32_ID: | |||
6843 | T = Context.Char32Ty; | |||
6844 | break; | |||
6845 | case PREDEF_TYPE_OBJC_ID: | |||
6846 | T = Context.ObjCBuiltinIdTy; | |||
6847 | break; | |||
6848 | case PREDEF_TYPE_OBJC_CLASS: | |||
6849 | T = Context.ObjCBuiltinClassTy; | |||
6850 | break; | |||
6851 | case PREDEF_TYPE_OBJC_SEL: | |||
6852 | T = Context.ObjCBuiltinSelTy; | |||
6853 | break; | |||
6854 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
6855 | case PREDEF_TYPE_##Id##_ID: \ | |||
6856 | T = Context.SingletonId; \ | |||
6857 | break; | |||
6858 | #include "clang/Basic/OpenCLImageTypes.def" | |||
6859 | case PREDEF_TYPE_SAMPLER_ID: | |||
6860 | T = Context.OCLSamplerTy; | |||
6861 | break; | |||
6862 | case PREDEF_TYPE_EVENT_ID: | |||
6863 | T = Context.OCLEventTy; | |||
6864 | break; | |||
6865 | case PREDEF_TYPE_CLK_EVENT_ID: | |||
6866 | T = Context.OCLClkEventTy; | |||
6867 | break; | |||
6868 | case PREDEF_TYPE_QUEUE_ID: | |||
6869 | T = Context.OCLQueueTy; | |||
6870 | break; | |||
6871 | case PREDEF_TYPE_RESERVE_ID_ID: | |||
6872 | T = Context.OCLReserveIDTy; | |||
6873 | break; | |||
6874 | case PREDEF_TYPE_AUTO_DEDUCT: | |||
6875 | T = Context.getAutoDeductType(); | |||
6876 | break; | |||
6877 | case PREDEF_TYPE_AUTO_RREF_DEDUCT: | |||
6878 | T = Context.getAutoRRefDeductType(); | |||
6879 | break; | |||
6880 | case PREDEF_TYPE_ARC_UNBRIDGED_CAST: | |||
6881 | T = Context.ARCUnbridgedCastTy; | |||
6882 | break; | |||
6883 | case PREDEF_TYPE_BUILTIN_FN: | |||
6884 | T = Context.BuiltinFnTy; | |||
6885 | break; | |||
6886 | case PREDEF_TYPE_OMP_ARRAY_SECTION: | |||
6887 | T = Context.OMPArraySectionTy; | |||
6888 | break; | |||
6889 | } | |||
6890 | ||||
6891 | assert(!T.isNull() && "Unknown predefined type")(static_cast <bool> (!T.isNull() && "Unknown predefined type" ) ? void (0) : __assert_fail ("!T.isNull() && \"Unknown predefined type\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6891, __extension__ __PRETTY_FUNCTION__)); | |||
6892 | return T.withFastQualifiers(FastQuals); | |||
6893 | } | |||
6894 | ||||
6895 | Index -= NUM_PREDEF_TYPE_IDS; | |||
6896 | assert(Index < TypesLoaded.size() && "Type index out-of-range")(static_cast <bool> (Index < TypesLoaded.size() && "Type index out-of-range") ? void (0) : __assert_fail ("Index < TypesLoaded.size() && \"Type index out-of-range\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6896, __extension__ __PRETTY_FUNCTION__)); | |||
6897 | if (TypesLoaded[Index].isNull()) { | |||
6898 | TypesLoaded[Index] = readTypeRecord(Index); | |||
6899 | if (TypesLoaded[Index].isNull()) | |||
6900 | return QualType(); | |||
6901 | ||||
6902 | TypesLoaded[Index]->setFromAST(); | |||
6903 | if (DeserializationListener) | |||
6904 | DeserializationListener->TypeRead(TypeIdx::fromTypeID(ID), | |||
6905 | TypesLoaded[Index]); | |||
6906 | } | |||
6907 | ||||
6908 | return TypesLoaded[Index].withFastQualifiers(FastQuals); | |||
6909 | } | |||
6910 | ||||
6911 | QualType ASTReader::getLocalType(ModuleFile &F, unsigned LocalID) { | |||
6912 | return GetType(getGlobalTypeID(F, LocalID)); | |||
6913 | } | |||
6914 | ||||
6915 | serialization::TypeID | |||
6916 | ASTReader::getGlobalTypeID(ModuleFile &F, unsigned LocalID) const { | |||
6917 | unsigned FastQuals = LocalID & Qualifiers::FastMask; | |||
6918 | unsigned LocalIndex = LocalID >> Qualifiers::FastWidth; | |||
6919 | ||||
6920 | if (LocalIndex < NUM_PREDEF_TYPE_IDS) | |||
6921 | return LocalID; | |||
6922 | ||||
6923 | if (!F.ModuleOffsetMap.empty()) | |||
6924 | ReadModuleOffsetMap(F); | |||
6925 | ||||
6926 | ContinuousRangeMap<uint32_t, int, 2>::iterator I | |||
6927 | = F.TypeRemap.find(LocalIndex - NUM_PREDEF_TYPE_IDS); | |||
6928 | assert(I != F.TypeRemap.end() && "Invalid index into type index remap")(static_cast <bool> (I != F.TypeRemap.end() && "Invalid index into type index remap" ) ? void (0) : __assert_fail ("I != F.TypeRemap.end() && \"Invalid index into type index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6928, __extension__ __PRETTY_FUNCTION__)); | |||
6929 | ||||
6930 | unsigned GlobalIndex = LocalIndex + I->second; | |||
6931 | return (GlobalIndex << Qualifiers::FastWidth) | FastQuals; | |||
6932 | } | |||
6933 | ||||
6934 | TemplateArgumentLocInfo | |||
6935 | ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F, | |||
6936 | TemplateArgument::ArgKind Kind, | |||
6937 | const RecordData &Record, | |||
6938 | unsigned &Index) { | |||
6939 | switch (Kind) { | |||
6940 | case TemplateArgument::Expression: | |||
6941 | return ReadExpr(F); | |||
6942 | case TemplateArgument::Type: | |||
6943 | return GetTypeSourceInfo(F, Record, Index); | |||
6944 | case TemplateArgument::Template: { | |||
6945 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, | |||
6946 | Index); | |||
6947 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index); | |||
6948 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc, | |||
6949 | SourceLocation()); | |||
6950 | } | |||
6951 | case TemplateArgument::TemplateExpansion: { | |||
6952 | NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, | |||
6953 | Index); | |||
6954 | SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index); | |||
6955 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Index); | |||
6956 | return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc, | |||
6957 | EllipsisLoc); | |||
6958 | } | |||
6959 | case TemplateArgument::Null: | |||
6960 | case TemplateArgument::Integral: | |||
6961 | case TemplateArgument::Declaration: | |||
6962 | case TemplateArgument::NullPtr: | |||
6963 | case TemplateArgument::Pack: | |||
6964 | // FIXME: Is this right? | |||
6965 | return TemplateArgumentLocInfo(); | |||
6966 | } | |||
6967 | llvm_unreachable("unexpected template argument loc")::llvm::llvm_unreachable_internal("unexpected template argument loc" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 6967); | |||
6968 | } | |||
6969 | ||||
6970 | TemplateArgumentLoc | |||
6971 | ASTReader::ReadTemplateArgumentLoc(ModuleFile &F, | |||
6972 | const RecordData &Record, unsigned &Index) { | |||
6973 | TemplateArgument Arg = ReadTemplateArgument(F, Record, Index); | |||
6974 | ||||
6975 | if (Arg.getKind() == TemplateArgument::Expression) { | |||
6976 | if (Record[Index++]) // bool InfoHasSameExpr. | |||
6977 | return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr())); | |||
6978 | } | |||
6979 | return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(F, Arg.getKind(), | |||
6980 | Record, Index)); | |||
6981 | } | |||
6982 | ||||
6983 | const ASTTemplateArgumentListInfo* | |||
6984 | ASTReader::ReadASTTemplateArgumentListInfo(ModuleFile &F, | |||
6985 | const RecordData &Record, | |||
6986 | unsigned &Index) { | |||
6987 | SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Index); | |||
6988 | SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Index); | |||
6989 | unsigned NumArgsAsWritten = Record[Index++]; | |||
6990 | TemplateArgumentListInfo TemplArgsInfo(LAngleLoc, RAngleLoc); | |||
6991 | for (unsigned i = 0; i != NumArgsAsWritten; ++i) | |||
6992 | TemplArgsInfo.addArgument(ReadTemplateArgumentLoc(F, Record, Index)); | |||
6993 | return ASTTemplateArgumentListInfo::Create(getContext(), TemplArgsInfo); | |||
6994 | } | |||
6995 | ||||
6996 | Decl *ASTReader::GetExternalDecl(uint32_t ID) { | |||
6997 | return GetDecl(ID); | |||
6998 | } | |||
6999 | ||||
7000 | void ASTReader::CompleteRedeclChain(const Decl *D) { | |||
7001 | if (NumCurrentElementsDeserializing) { | |||
7002 | // We arrange to not care about the complete redeclaration chain while we're | |||
7003 | // deserializing. Just remember that the AST has marked this one as complete | |||
7004 | // but that it's not actually complete yet, so we know we still need to | |||
7005 | // complete it later. | |||
7006 | PendingIncompleteDeclChains.push_back(const_cast<Decl*>(D)); | |||
7007 | return; | |||
7008 | } | |||
7009 | ||||
7010 | const DeclContext *DC = D->getDeclContext()->getRedeclContext(); | |||
7011 | ||||
7012 | // If this is a named declaration, complete it by looking it up | |||
7013 | // within its context. | |||
7014 | // | |||
7015 | // FIXME: Merging a function definition should merge | |||
7016 | // all mergeable entities within it. | |||
7017 | if (isa<TranslationUnitDecl>(DC) || isa<NamespaceDecl>(DC) || | |||
7018 | isa<CXXRecordDecl>(DC) || isa<EnumDecl>(DC)) { | |||
7019 | if (DeclarationName Name = cast<NamedDecl>(D)->getDeclName()) { | |||
7020 | if (!getContext().getLangOpts().CPlusPlus && | |||
7021 | isa<TranslationUnitDecl>(DC)) { | |||
7022 | // Outside of C++, we don't have a lookup table for the TU, so update | |||
7023 | // the identifier instead. (For C++ modules, we don't store decls | |||
7024 | // in the serialized identifier table, so we do the lookup in the TU.) | |||
7025 | auto *II = Name.getAsIdentifierInfo(); | |||
7026 | assert(II && "non-identifier name in C?")(static_cast <bool> (II && "non-identifier name in C?" ) ? void (0) : __assert_fail ("II && \"non-identifier name in C?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7026, __extension__ __PRETTY_FUNCTION__)); | |||
7027 | if (II->isOutOfDate()) | |||
7028 | updateOutOfDateIdentifier(*II); | |||
7029 | } else | |||
7030 | DC->lookup(Name); | |||
7031 | } else if (needsAnonymousDeclarationNumber(cast<NamedDecl>(D))) { | |||
7032 | // Find all declarations of this kind from the relevant context. | |||
7033 | for (auto *DCDecl : cast<Decl>(D->getLexicalDeclContext())->redecls()) { | |||
7034 | auto *DC = cast<DeclContext>(DCDecl); | |||
7035 | SmallVector<Decl*, 8> Decls; | |||
7036 | FindExternalLexicalDecls( | |||
7037 | DC, [&](Decl::Kind K) { return K == D->getKind(); }, Decls); | |||
7038 | } | |||
7039 | } | |||
7040 | } | |||
7041 | ||||
7042 | if (auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D)) | |||
7043 | CTSD->getSpecializedTemplate()->LoadLazySpecializations(); | |||
7044 | if (auto *VTSD = dyn_cast<VarTemplateSpecializationDecl>(D)) | |||
7045 | VTSD->getSpecializedTemplate()->LoadLazySpecializations(); | |||
7046 | if (auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
7047 | if (auto *Template = FD->getPrimaryTemplate()) | |||
7048 | Template->LoadLazySpecializations(); | |||
7049 | } | |||
7050 | } | |||
7051 | ||||
7052 | CXXCtorInitializer ** | |||
7053 | ASTReader::GetExternalCXXCtorInitializers(uint64_t Offset) { | |||
7054 | RecordLocation Loc = getLocalBitOffset(Offset); | |||
7055 | BitstreamCursor &Cursor = Loc.F->DeclsCursor; | |||
7056 | SavedStreamPosition SavedPosition(Cursor); | |||
7057 | Cursor.JumpToBit(Loc.Offset); | |||
7058 | ReadingKindTracker ReadingKind(Read_Decl, *this); | |||
7059 | ||||
7060 | RecordData Record; | |||
7061 | unsigned Code = Cursor.ReadCode(); | |||
7062 | unsigned RecCode = Cursor.readRecord(Code, Record); | |||
7063 | if (RecCode != DECL_CXX_CTOR_INITIALIZERS) { | |||
7064 | Error("malformed AST file: missing C++ ctor initializers"); | |||
7065 | return nullptr; | |||
7066 | } | |||
7067 | ||||
7068 | unsigned Idx = 0; | |||
7069 | return ReadCXXCtorInitializers(*Loc.F, Record, Idx); | |||
7070 | } | |||
7071 | ||||
7072 | CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) { | |||
7073 | assert(ContextObj && "reading base specifiers with no AST context")(static_cast <bool> (ContextObj && "reading base specifiers with no AST context" ) ? void (0) : __assert_fail ("ContextObj && \"reading base specifiers with no AST context\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7073, __extension__ __PRETTY_FUNCTION__)); | |||
7074 | ASTContext &Context = *ContextObj; | |||
7075 | ||||
7076 | RecordLocation Loc = getLocalBitOffset(Offset); | |||
7077 | BitstreamCursor &Cursor = Loc.F->DeclsCursor; | |||
7078 | SavedStreamPosition SavedPosition(Cursor); | |||
7079 | Cursor.JumpToBit(Loc.Offset); | |||
7080 | ReadingKindTracker ReadingKind(Read_Decl, *this); | |||
7081 | RecordData Record; | |||
7082 | unsigned Code = Cursor.ReadCode(); | |||
7083 | unsigned RecCode = Cursor.readRecord(Code, Record); | |||
7084 | if (RecCode != DECL_CXX_BASE_SPECIFIERS) { | |||
7085 | Error("malformed AST file: missing C++ base specifiers"); | |||
7086 | return nullptr; | |||
7087 | } | |||
7088 | ||||
7089 | unsigned Idx = 0; | |||
7090 | unsigned NumBases = Record[Idx++]; | |||
7091 | void *Mem = Context.Allocate(sizeof(CXXBaseSpecifier) * NumBases); | |||
7092 | CXXBaseSpecifier *Bases = new (Mem) CXXBaseSpecifier [NumBases]; | |||
7093 | for (unsigned I = 0; I != NumBases; ++I) | |||
7094 | Bases[I] = ReadCXXBaseSpecifier(*Loc.F, Record, Idx); | |||
7095 | return Bases; | |||
7096 | } | |||
7097 | ||||
7098 | serialization::DeclID | |||
7099 | ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const { | |||
7100 | if (LocalID < NUM_PREDEF_DECL_IDS) | |||
7101 | return LocalID; | |||
7102 | ||||
7103 | if (!F.ModuleOffsetMap.empty()) | |||
7104 | ReadModuleOffsetMap(F); | |||
7105 | ||||
7106 | ContinuousRangeMap<uint32_t, int, 2>::iterator I | |||
7107 | = F.DeclRemap.find(LocalID - NUM_PREDEF_DECL_IDS); | |||
7108 | assert(I != F.DeclRemap.end() && "Invalid index into decl index remap")(static_cast <bool> (I != F.DeclRemap.end() && "Invalid index into decl index remap" ) ? void (0) : __assert_fail ("I != F.DeclRemap.end() && \"Invalid index into decl index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7108, __extension__ __PRETTY_FUNCTION__)); | |||
7109 | ||||
7110 | return LocalID + I->second; | |||
7111 | } | |||
7112 | ||||
7113 | bool ASTReader::isDeclIDFromModule(serialization::GlobalDeclID ID, | |||
7114 | ModuleFile &M) const { | |||
7115 | // Predefined decls aren't from any module. | |||
7116 | if (ID < NUM_PREDEF_DECL_IDS) | |||
7117 | return false; | |||
7118 | ||||
7119 | return ID - NUM_PREDEF_DECL_IDS >= M.BaseDeclID && | |||
7120 | ID - NUM_PREDEF_DECL_IDS < M.BaseDeclID + M.LocalNumDecls; | |||
7121 | } | |||
7122 | ||||
7123 | ModuleFile *ASTReader::getOwningModuleFile(const Decl *D) { | |||
7124 | if (!D->isFromASTFile()) | |||
7125 | return nullptr; | |||
7126 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(D->getGlobalID()); | |||
7127 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map")(static_cast <bool> (I != GlobalDeclMap.end() && "Corrupted global declaration map") ? void (0) : __assert_fail ("I != GlobalDeclMap.end() && \"Corrupted global declaration map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7127, __extension__ __PRETTY_FUNCTION__)); | |||
7128 | return I->second; | |||
7129 | } | |||
7130 | ||||
7131 | SourceLocation ASTReader::getSourceLocationForDeclID(GlobalDeclID ID) { | |||
7132 | if (ID < NUM_PREDEF_DECL_IDS) | |||
7133 | return SourceLocation(); | |||
7134 | ||||
7135 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; | |||
7136 | ||||
7137 | if (Index > DeclsLoaded.size()) { | |||
7138 | Error("declaration ID out-of-range for AST file"); | |||
7139 | return SourceLocation(); | |||
7140 | } | |||
7141 | ||||
7142 | if (Decl *D = DeclsLoaded[Index]) | |||
7143 | return D->getLocation(); | |||
7144 | ||||
7145 | SourceLocation Loc; | |||
7146 | DeclCursorForID(ID, Loc); | |||
7147 | return Loc; | |||
7148 | } | |||
7149 | ||||
7150 | static Decl *getPredefinedDecl(ASTContext &Context, PredefinedDeclIDs ID) { | |||
7151 | switch (ID) { | |||
7152 | case PREDEF_DECL_NULL_ID: | |||
7153 | return nullptr; | |||
7154 | ||||
7155 | case PREDEF_DECL_TRANSLATION_UNIT_ID: | |||
7156 | return Context.getTranslationUnitDecl(); | |||
7157 | ||||
7158 | case PREDEF_DECL_OBJC_ID_ID: | |||
7159 | return Context.getObjCIdDecl(); | |||
7160 | ||||
7161 | case PREDEF_DECL_OBJC_SEL_ID: | |||
7162 | return Context.getObjCSelDecl(); | |||
7163 | ||||
7164 | case PREDEF_DECL_OBJC_CLASS_ID: | |||
7165 | return Context.getObjCClassDecl(); | |||
7166 | ||||
7167 | case PREDEF_DECL_OBJC_PROTOCOL_ID: | |||
7168 | return Context.getObjCProtocolDecl(); | |||
7169 | ||||
7170 | case PREDEF_DECL_INT_128_ID: | |||
7171 | return Context.getInt128Decl(); | |||
7172 | ||||
7173 | case PREDEF_DECL_UNSIGNED_INT_128_ID: | |||
7174 | return Context.getUInt128Decl(); | |||
7175 | ||||
7176 | case PREDEF_DECL_OBJC_INSTANCETYPE_ID: | |||
7177 | return Context.getObjCInstanceTypeDecl(); | |||
7178 | ||||
7179 | case PREDEF_DECL_BUILTIN_VA_LIST_ID: | |||
7180 | return Context.getBuiltinVaListDecl(); | |||
7181 | ||||
7182 | case PREDEF_DECL_VA_LIST_TAG: | |||
7183 | return Context.getVaListTagDecl(); | |||
7184 | ||||
7185 | case PREDEF_DECL_BUILTIN_MS_VA_LIST_ID: | |||
7186 | return Context.getBuiltinMSVaListDecl(); | |||
7187 | ||||
7188 | case PREDEF_DECL_EXTERN_C_CONTEXT_ID: | |||
7189 | return Context.getExternCContextDecl(); | |||
7190 | ||||
7191 | case PREDEF_DECL_MAKE_INTEGER_SEQ_ID: | |||
7192 | return Context.getMakeIntegerSeqDecl(); | |||
7193 | ||||
7194 | case PREDEF_DECL_CF_CONSTANT_STRING_ID: | |||
7195 | return Context.getCFConstantStringDecl(); | |||
7196 | ||||
7197 | case PREDEF_DECL_CF_CONSTANT_STRING_TAG_ID: | |||
7198 | return Context.getCFConstantStringTagDecl(); | |||
7199 | ||||
7200 | case PREDEF_DECL_TYPE_PACK_ELEMENT_ID: | |||
7201 | return Context.getTypePackElementDecl(); | |||
7202 | } | |||
7203 | llvm_unreachable("PredefinedDeclIDs unknown enum value")::llvm::llvm_unreachable_internal("PredefinedDeclIDs unknown enum value" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7203); | |||
7204 | } | |||
7205 | ||||
7206 | Decl *ASTReader::GetExistingDecl(DeclID ID) { | |||
7207 | assert(ContextObj && "reading decl with no AST context")(static_cast <bool> (ContextObj && "reading decl with no AST context" ) ? void (0) : __assert_fail ("ContextObj && \"reading decl with no AST context\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7207, __extension__ __PRETTY_FUNCTION__)); | |||
7208 | if (ID < NUM_PREDEF_DECL_IDS) { | |||
7209 | Decl *D = getPredefinedDecl(*ContextObj, (PredefinedDeclIDs)ID); | |||
7210 | if (D) { | |||
7211 | // Track that we have merged the declaration with ID \p ID into the | |||
7212 | // pre-existing predefined declaration \p D. | |||
7213 | auto &Merged = KeyDecls[D->getCanonicalDecl()]; | |||
7214 | if (Merged.empty()) | |||
7215 | Merged.push_back(ID); | |||
7216 | } | |||
7217 | return D; | |||
7218 | } | |||
7219 | ||||
7220 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; | |||
7221 | ||||
7222 | if (Index >= DeclsLoaded.size()) { | |||
7223 | assert(0 && "declaration ID out-of-range for AST file")(static_cast <bool> (0 && "declaration ID out-of-range for AST file" ) ? void (0) : __assert_fail ("0 && \"declaration ID out-of-range for AST file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7223, __extension__ __PRETTY_FUNCTION__)); | |||
7224 | Error("declaration ID out-of-range for AST file"); | |||
7225 | return nullptr; | |||
7226 | } | |||
7227 | ||||
7228 | return DeclsLoaded[Index]; | |||
7229 | } | |||
7230 | ||||
7231 | Decl *ASTReader::GetDecl(DeclID ID) { | |||
7232 | if (ID < NUM_PREDEF_DECL_IDS) | |||
7233 | return GetExistingDecl(ID); | |||
7234 | ||||
7235 | unsigned Index = ID - NUM_PREDEF_DECL_IDS; | |||
7236 | ||||
7237 | if (Index >= DeclsLoaded.size()) { | |||
7238 | assert(0 && "declaration ID out-of-range for AST file")(static_cast <bool> (0 && "declaration ID out-of-range for AST file" ) ? void (0) : __assert_fail ("0 && \"declaration ID out-of-range for AST file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7238, __extension__ __PRETTY_FUNCTION__)); | |||
7239 | Error("declaration ID out-of-range for AST file"); | |||
7240 | return nullptr; | |||
7241 | } | |||
7242 | ||||
7243 | if (!DeclsLoaded[Index]) { | |||
7244 | ReadDeclRecord(ID); | |||
7245 | if (DeserializationListener) | |||
7246 | DeserializationListener->DeclRead(ID, DeclsLoaded[Index]); | |||
7247 | } | |||
7248 | ||||
7249 | return DeclsLoaded[Index]; | |||
7250 | } | |||
7251 | ||||
7252 | DeclID ASTReader::mapGlobalIDToModuleFileGlobalID(ModuleFile &M, | |||
7253 | DeclID GlobalID) { | |||
7254 | if (GlobalID < NUM_PREDEF_DECL_IDS) | |||
7255 | return GlobalID; | |||
7256 | ||||
7257 | GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(GlobalID); | |||
7258 | assert(I != GlobalDeclMap.end() && "Corrupted global declaration map")(static_cast <bool> (I != GlobalDeclMap.end() && "Corrupted global declaration map") ? void (0) : __assert_fail ("I != GlobalDeclMap.end() && \"Corrupted global declaration map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7258, __extension__ __PRETTY_FUNCTION__)); | |||
7259 | ModuleFile *Owner = I->second; | |||
7260 | ||||
7261 | llvm::DenseMap<ModuleFile *, serialization::DeclID>::iterator Pos | |||
7262 | = M.GlobalToLocalDeclIDs.find(Owner); | |||
7263 | if (Pos == M.GlobalToLocalDeclIDs.end()) | |||
7264 | return 0; | |||
7265 | ||||
7266 | return GlobalID - Owner->BaseDeclID + Pos->second; | |||
7267 | } | |||
7268 | ||||
7269 | serialization::DeclID ASTReader::ReadDeclID(ModuleFile &F, | |||
7270 | const RecordData &Record, | |||
7271 | unsigned &Idx) { | |||
7272 | if (Idx >= Record.size()) { | |||
7273 | Error("Corrupted AST file"); | |||
7274 | return 0; | |||
7275 | } | |||
7276 | ||||
7277 | return getGlobalDeclID(F, Record[Idx++]); | |||
7278 | } | |||
7279 | ||||
7280 | /// \brief Resolve the offset of a statement into a statement. | |||
7281 | /// | |||
7282 | /// This operation will read a new statement from the external | |||
7283 | /// source each time it is called, and is meant to be used via a | |||
7284 | /// LazyOffsetPtr (which is used by Decls for the body of functions, etc). | |||
7285 | Stmt *ASTReader::GetExternalDeclStmt(uint64_t Offset) { | |||
7286 | // Switch case IDs are per Decl. | |||
7287 | ClearSwitchCaseIDs(); | |||
7288 | ||||
7289 | // Offset here is a global offset across the entire chain. | |||
7290 | RecordLocation Loc = getLocalBitOffset(Offset); | |||
7291 | Loc.F->DeclsCursor.JumpToBit(Loc.Offset); | |||
7292 | assert(NumCurrentElementsDeserializing == 0 &&(static_cast <bool> (NumCurrentElementsDeserializing == 0 && "should not be called while already deserializing" ) ? void (0) : __assert_fail ("NumCurrentElementsDeserializing == 0 && \"should not be called while already deserializing\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7293, __extension__ __PRETTY_FUNCTION__)) | |||
7293 | "should not be called while already deserializing")(static_cast <bool> (NumCurrentElementsDeserializing == 0 && "should not be called while already deserializing" ) ? void (0) : __assert_fail ("NumCurrentElementsDeserializing == 0 && \"should not be called while already deserializing\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7293, __extension__ __PRETTY_FUNCTION__)); | |||
7294 | Deserializing D(this); | |||
7295 | return ReadStmtFromStream(*Loc.F); | |||
7296 | } | |||
7297 | ||||
7298 | void ASTReader::FindExternalLexicalDecls( | |||
7299 | const DeclContext *DC, llvm::function_ref<bool(Decl::Kind)> IsKindWeWant, | |||
7300 | SmallVectorImpl<Decl *> &Decls) { | |||
7301 | bool PredefsVisited[NUM_PREDEF_DECL_IDS] = {}; | |||
7302 | ||||
7303 | auto Visit = [&] (ModuleFile *M, LexicalContents LexicalDecls) { | |||
7304 | assert(LexicalDecls.size() % 2 == 0 && "expected an even number of entries")(static_cast <bool> (LexicalDecls.size() % 2 == 0 && "expected an even number of entries") ? void (0) : __assert_fail ("LexicalDecls.size() % 2 == 0 && \"expected an even number of entries\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7304, __extension__ __PRETTY_FUNCTION__)); | |||
7305 | for (int I = 0, N = LexicalDecls.size(); I != N; I += 2) { | |||
7306 | auto K = (Decl::Kind)+LexicalDecls[I]; | |||
7307 | if (!IsKindWeWant(K)) | |||
7308 | continue; | |||
7309 | ||||
7310 | auto ID = (serialization::DeclID)+LexicalDecls[I + 1]; | |||
7311 | ||||
7312 | // Don't add predefined declarations to the lexical context more | |||
7313 | // than once. | |||
7314 | if (ID < NUM_PREDEF_DECL_IDS) { | |||
7315 | if (PredefsVisited[ID]) | |||
7316 | continue; | |||
7317 | ||||
7318 | PredefsVisited[ID] = true; | |||
7319 | } | |||
7320 | ||||
7321 | if (Decl *D = GetLocalDecl(*M, ID)) { | |||
7322 | assert(D->getKind() == K && "wrong kind for lexical decl")(static_cast <bool> (D->getKind() == K && "wrong kind for lexical decl" ) ? void (0) : __assert_fail ("D->getKind() == K && \"wrong kind for lexical decl\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7322, __extension__ __PRETTY_FUNCTION__)); | |||
7323 | if (!DC->isDeclInLexicalTraversal(D)) | |||
7324 | Decls.push_back(D); | |||
7325 | } | |||
7326 | } | |||
7327 | }; | |||
7328 | ||||
7329 | if (isa<TranslationUnitDecl>(DC)) { | |||
7330 | for (auto Lexical : TULexicalDecls) | |||
7331 | Visit(Lexical.first, Lexical.second); | |||
7332 | } else { | |||
7333 | auto I = LexicalDecls.find(DC); | |||
7334 | if (I != LexicalDecls.end()) | |||
7335 | Visit(I->second.first, I->second.second); | |||
7336 | } | |||
7337 | ||||
7338 | ++NumLexicalDeclContextsRead; | |||
7339 | } | |||
7340 | ||||
7341 | namespace { | |||
7342 | ||||
7343 | class DeclIDComp { | |||
7344 | ASTReader &Reader; | |||
7345 | ModuleFile &Mod; | |||
7346 | ||||
7347 | public: | |||
7348 | DeclIDComp(ASTReader &Reader, ModuleFile &M) : Reader(Reader), Mod(M) {} | |||
7349 | ||||
7350 | bool operator()(LocalDeclID L, LocalDeclID R) const { | |||
7351 | SourceLocation LHS = getLocation(L); | |||
7352 | SourceLocation RHS = getLocation(R); | |||
7353 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); | |||
7354 | } | |||
7355 | ||||
7356 | bool operator()(SourceLocation LHS, LocalDeclID R) const { | |||
7357 | SourceLocation RHS = getLocation(R); | |||
7358 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); | |||
7359 | } | |||
7360 | ||||
7361 | bool operator()(LocalDeclID L, SourceLocation RHS) const { | |||
7362 | SourceLocation LHS = getLocation(L); | |||
7363 | return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS); | |||
7364 | } | |||
7365 | ||||
7366 | SourceLocation getLocation(LocalDeclID ID) const { | |||
7367 | return Reader.getSourceManager().getFileLoc( | |||
7368 | Reader.getSourceLocationForDeclID(Reader.getGlobalDeclID(Mod, ID))); | |||
7369 | } | |||
7370 | }; | |||
7371 | ||||
7372 | } // namespace | |||
7373 | ||||
7374 | void ASTReader::FindFileRegionDecls(FileID File, | |||
7375 | unsigned Offset, unsigned Length, | |||
7376 | SmallVectorImpl<Decl *> &Decls) { | |||
7377 | SourceManager &SM = getSourceManager(); | |||
7378 | ||||
7379 | llvm::DenseMap<FileID, FileDeclsInfo>::iterator I = FileDeclIDs.find(File); | |||
7380 | if (I == FileDeclIDs.end()) | |||
7381 | return; | |||
7382 | ||||
7383 | FileDeclsInfo &DInfo = I->second; | |||
7384 | if (DInfo.Decls.empty()) | |||
7385 | return; | |||
7386 | ||||
7387 | SourceLocation | |||
7388 | BeginLoc = SM.getLocForStartOfFile(File).getLocWithOffset(Offset); | |||
7389 | SourceLocation EndLoc = BeginLoc.getLocWithOffset(Length); | |||
7390 | ||||
7391 | DeclIDComp DIDComp(*this, *DInfo.Mod); | |||
7392 | ArrayRef<serialization::LocalDeclID>::iterator | |||
7393 | BeginIt = std::lower_bound(DInfo.Decls.begin(), DInfo.Decls.end(), | |||
7394 | BeginLoc, DIDComp); | |||
7395 | if (BeginIt != DInfo.Decls.begin()) | |||
7396 | --BeginIt; | |||
7397 | ||||
7398 | // If we are pointing at a top-level decl inside an objc container, we need | |||
7399 | // to backtrack until we find it otherwise we will fail to report that the | |||
7400 | // region overlaps with an objc container. | |||
7401 | while (BeginIt != DInfo.Decls.begin() && | |||
7402 | GetDecl(getGlobalDeclID(*DInfo.Mod, *BeginIt)) | |||
7403 | ->isTopLevelDeclInObjCContainer()) | |||
7404 | --BeginIt; | |||
7405 | ||||
7406 | ArrayRef<serialization::LocalDeclID>::iterator | |||
7407 | EndIt = std::upper_bound(DInfo.Decls.begin(), DInfo.Decls.end(), | |||
7408 | EndLoc, DIDComp); | |||
7409 | if (EndIt != DInfo.Decls.end()) | |||
7410 | ++EndIt; | |||
7411 | ||||
7412 | for (ArrayRef<serialization::LocalDeclID>::iterator | |||
7413 | DIt = BeginIt; DIt != EndIt; ++DIt) | |||
7414 | Decls.push_back(GetDecl(getGlobalDeclID(*DInfo.Mod, *DIt))); | |||
7415 | } | |||
7416 | ||||
7417 | bool | |||
7418 | ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC, | |||
7419 | DeclarationName Name) { | |||
7420 | assert(DC->hasExternalVisibleStorage() && DC == DC->getPrimaryContext() &&(static_cast <bool> (DC->hasExternalVisibleStorage() && DC == DC->getPrimaryContext() && "DeclContext has no visible decls in storage" ) ? void (0) : __assert_fail ("DC->hasExternalVisibleStorage() && DC == DC->getPrimaryContext() && \"DeclContext has no visible decls in storage\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7421, __extension__ __PRETTY_FUNCTION__)) | |||
7421 | "DeclContext has no visible decls in storage")(static_cast <bool> (DC->hasExternalVisibleStorage() && DC == DC->getPrimaryContext() && "DeclContext has no visible decls in storage" ) ? void (0) : __assert_fail ("DC->hasExternalVisibleStorage() && DC == DC->getPrimaryContext() && \"DeclContext has no visible decls in storage\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7421, __extension__ __PRETTY_FUNCTION__)); | |||
7422 | if (!Name) | |||
| ||||
7423 | return false; | |||
7424 | ||||
7425 | auto It = Lookups.find(DC); | |||
7426 | if (It == Lookups.end()) | |||
7427 | return false; | |||
7428 | ||||
7429 | Deserializing LookupResults(this); | |||
7430 | ||||
7431 | // Load the list of declarations. | |||
7432 | SmallVector<NamedDecl *, 64> Decls; | |||
7433 | for (DeclID ID : It->second.Table.find(Name)) { | |||
7434 | NamedDecl *ND = cast<NamedDecl>(GetDecl(ID)); | |||
7435 | if (ND->getDeclName() == Name) | |||
7436 | Decls.push_back(ND); | |||
7437 | } | |||
7438 | ||||
7439 | ++NumVisibleDeclContextsRead; | |||
7440 | SetExternalVisibleDeclsForName(DC, Name, Decls); | |||
7441 | return !Decls.empty(); | |||
7442 | } | |||
7443 | ||||
7444 | void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) { | |||
7445 | if (!DC->hasExternalVisibleStorage()) | |||
7446 | return; | |||
7447 | ||||
7448 | auto It = Lookups.find(DC); | |||
7449 | assert(It != Lookups.end() &&(static_cast <bool> (It != Lookups.end() && "have external visible storage but no lookup tables" ) ? void (0) : __assert_fail ("It != Lookups.end() && \"have external visible storage but no lookup tables\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7450, __extension__ __PRETTY_FUNCTION__)) | |||
7450 | "have external visible storage but no lookup tables")(static_cast <bool> (It != Lookups.end() && "have external visible storage but no lookup tables" ) ? void (0) : __assert_fail ("It != Lookups.end() && \"have external visible storage but no lookup tables\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7450, __extension__ __PRETTY_FUNCTION__)); | |||
7451 | ||||
7452 | DeclsMap Decls; | |||
7453 | ||||
7454 | for (DeclID ID : It->second.Table.findAll()) { | |||
7455 | NamedDecl *ND = cast<NamedDecl>(GetDecl(ID)); | |||
7456 | Decls[ND->getDeclName()].push_back(ND); | |||
7457 | } | |||
7458 | ||||
7459 | ++NumVisibleDeclContextsRead; | |||
7460 | ||||
7461 | for (DeclsMap::iterator I = Decls.begin(), E = Decls.end(); I != E; ++I) { | |||
7462 | SetExternalVisibleDeclsForName(DC, I->first, I->second); | |||
7463 | } | |||
7464 | const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false); | |||
7465 | } | |||
7466 | ||||
7467 | const serialization::reader::DeclContextLookupTable * | |||
7468 | ASTReader::getLoadedLookupTables(DeclContext *Primary) const { | |||
7469 | auto I = Lookups.find(Primary); | |||
7470 | return I == Lookups.end() ? nullptr : &I->second; | |||
7471 | } | |||
7472 | ||||
7473 | /// \brief Under non-PCH compilation the consumer receives the objc methods | |||
7474 | /// before receiving the implementation, and codegen depends on this. | |||
7475 | /// We simulate this by deserializing and passing to consumer the methods of the | |||
7476 | /// implementation before passing the deserialized implementation decl. | |||
7477 | static void PassObjCImplDeclToConsumer(ObjCImplDecl *ImplD, | |||
7478 | ASTConsumer *Consumer) { | |||
7479 | assert(ImplD && Consumer)(static_cast <bool> (ImplD && Consumer) ? void ( 0) : __assert_fail ("ImplD && Consumer", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7479, __extension__ __PRETTY_FUNCTION__)); | |||
7480 | ||||
7481 | for (auto *I : ImplD->methods()) | |||
7482 | Consumer->HandleInterestingDecl(DeclGroupRef(I)); | |||
7483 | ||||
7484 | Consumer->HandleInterestingDecl(DeclGroupRef(ImplD)); | |||
7485 | } | |||
7486 | ||||
7487 | void ASTReader::PassInterestingDeclToConsumer(Decl *D) { | |||
7488 | if (ObjCImplDecl *ImplD = dyn_cast<ObjCImplDecl>(D)) | |||
7489 | PassObjCImplDeclToConsumer(ImplD, Consumer); | |||
7490 | else | |||
7491 | Consumer->HandleInterestingDecl(DeclGroupRef(D)); | |||
7492 | } | |||
7493 | ||||
7494 | void ASTReader::StartTranslationUnit(ASTConsumer *Consumer) { | |||
7495 | this->Consumer = Consumer; | |||
7496 | ||||
7497 | if (Consumer) | |||
7498 | PassInterestingDeclsToConsumer(); | |||
7499 | ||||
7500 | if (DeserializationListener) | |||
7501 | DeserializationListener->ReaderInitialized(this); | |||
7502 | } | |||
7503 | ||||
7504 | void ASTReader::PrintStats() { | |||
7505 | std::fprintf(stderrstderr, "*** AST File Statistics:\n"); | |||
7506 | ||||
7507 | unsigned NumTypesLoaded | |||
7508 | = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(), | |||
7509 | QualType()); | |||
7510 | unsigned NumDeclsLoaded | |||
7511 | = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(), | |||
7512 | (Decl *)nullptr); | |||
7513 | unsigned NumIdentifiersLoaded | |||
7514 | = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(), | |||
7515 | IdentifiersLoaded.end(), | |||
7516 | (IdentifierInfo *)nullptr); | |||
7517 | unsigned NumMacrosLoaded | |||
7518 | = MacrosLoaded.size() - std::count(MacrosLoaded.begin(), | |||
7519 | MacrosLoaded.end(), | |||
7520 | (MacroInfo *)nullptr); | |||
7521 | unsigned NumSelectorsLoaded | |||
7522 | = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(), | |||
7523 | SelectorsLoaded.end(), | |||
7524 | Selector()); | |||
7525 | ||||
7526 | if (unsigned TotalNumSLocEntries = getTotalNumSLocs()) | |||
7527 | std::fprintf(stderrstderr, " %u/%u source location entries read (%f%%)\n", | |||
7528 | NumSLocEntriesRead, TotalNumSLocEntries, | |||
7529 | ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100)); | |||
7530 | if (!TypesLoaded.empty()) | |||
7531 | std::fprintf(stderrstderr, " %u/%u types read (%f%%)\n", | |||
7532 | NumTypesLoaded, (unsigned)TypesLoaded.size(), | |||
7533 | ((float)NumTypesLoaded/TypesLoaded.size() * 100)); | |||
7534 | if (!DeclsLoaded.empty()) | |||
7535 | std::fprintf(stderrstderr, " %u/%u declarations read (%f%%)\n", | |||
7536 | NumDeclsLoaded, (unsigned)DeclsLoaded.size(), | |||
7537 | ((float)NumDeclsLoaded/DeclsLoaded.size() * 100)); | |||
7538 | if (!IdentifiersLoaded.empty()) | |||
7539 | std::fprintf(stderrstderr, " %u/%u identifiers read (%f%%)\n", | |||
7540 | NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(), | |||
7541 | ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100)); | |||
7542 | if (!MacrosLoaded.empty()) | |||
7543 | std::fprintf(stderrstderr, " %u/%u macros read (%f%%)\n", | |||
7544 | NumMacrosLoaded, (unsigned)MacrosLoaded.size(), | |||
7545 | ((float)NumMacrosLoaded/MacrosLoaded.size() * 100)); | |||
7546 | if (!SelectorsLoaded.empty()) | |||
7547 | std::fprintf(stderrstderr, " %u/%u selectors read (%f%%)\n", | |||
7548 | NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(), | |||
7549 | ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100)); | |||
7550 | if (TotalNumStatements) | |||
7551 | std::fprintf(stderrstderr, " %u/%u statements read (%f%%)\n", | |||
7552 | NumStatementsRead, TotalNumStatements, | |||
7553 | ((float)NumStatementsRead/TotalNumStatements * 100)); | |||
7554 | if (TotalNumMacros) | |||
7555 | std::fprintf(stderrstderr, " %u/%u macros read (%f%%)\n", | |||
7556 | NumMacrosRead, TotalNumMacros, | |||
7557 | ((float)NumMacrosRead/TotalNumMacros * 100)); | |||
7558 | if (TotalLexicalDeclContexts) | |||
7559 | std::fprintf(stderrstderr, " %u/%u lexical declcontexts read (%f%%)\n", | |||
7560 | NumLexicalDeclContextsRead, TotalLexicalDeclContexts, | |||
7561 | ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts | |||
7562 | * 100)); | |||
7563 | if (TotalVisibleDeclContexts) | |||
7564 | std::fprintf(stderrstderr, " %u/%u visible declcontexts read (%f%%)\n", | |||
7565 | NumVisibleDeclContextsRead, TotalVisibleDeclContexts, | |||
7566 | ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts | |||
7567 | * 100)); | |||
7568 | if (TotalNumMethodPoolEntries) | |||
7569 | std::fprintf(stderrstderr, " %u/%u method pool entries read (%f%%)\n", | |||
7570 | NumMethodPoolEntriesRead, TotalNumMethodPoolEntries, | |||
7571 | ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries | |||
7572 | * 100)); | |||
7573 | if (NumMethodPoolLookups) | |||
7574 | std::fprintf(stderrstderr, " %u/%u method pool lookups succeeded (%f%%)\n", | |||
7575 | NumMethodPoolHits, NumMethodPoolLookups, | |||
7576 | ((float)NumMethodPoolHits/NumMethodPoolLookups * 100.0)); | |||
7577 | if (NumMethodPoolTableLookups) | |||
7578 | std::fprintf(stderrstderr, " %u/%u method pool table lookups succeeded (%f%%)\n", | |||
7579 | NumMethodPoolTableHits, NumMethodPoolTableLookups, | |||
7580 | ((float)NumMethodPoolTableHits/NumMethodPoolTableLookups | |||
7581 | * 100.0)); | |||
7582 | if (NumIdentifierLookupHits) | |||
7583 | std::fprintf(stderrstderr, | |||
7584 | " %u / %u identifier table lookups succeeded (%f%%)\n", | |||
7585 | NumIdentifierLookupHits, NumIdentifierLookups, | |||
7586 | (double)NumIdentifierLookupHits*100.0/NumIdentifierLookups); | |||
7587 | ||||
7588 | if (GlobalIndex) { | |||
7589 | std::fprintf(stderrstderr, "\n"); | |||
7590 | GlobalIndex->printStats(); | |||
7591 | } | |||
7592 | ||||
7593 | std::fprintf(stderrstderr, "\n"); | |||
7594 | dump(); | |||
7595 | std::fprintf(stderrstderr, "\n"); | |||
7596 | } | |||
7597 | ||||
7598 | template<typename Key, typename ModuleFile, unsigned InitialCapacity> | |||
7599 | LLVM_DUMP_METHOD__attribute__((noinline)) __attribute__((__used__)) static void | |||
7600 | dumpModuleIDMap(StringRef Name, | |||
7601 | const ContinuousRangeMap<Key, ModuleFile *, | |||
7602 | InitialCapacity> &Map) { | |||
7603 | if (Map.begin() == Map.end()) | |||
7604 | return; | |||
7605 | ||||
7606 | using MapType = ContinuousRangeMap<Key, ModuleFile *, InitialCapacity>; | |||
7607 | ||||
7608 | llvm::errs() << Name << ":\n"; | |||
7609 | for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end(); | |||
7610 | I != IEnd; ++I) { | |||
7611 | llvm::errs() << " " << I->first << " -> " << I->second->FileName | |||
7612 | << "\n"; | |||
7613 | } | |||
7614 | } | |||
7615 | ||||
7616 | LLVM_DUMP_METHOD__attribute__((noinline)) __attribute__((__used__)) void ASTReader::dump() { | |||
7617 | llvm::errs() << "*** PCH/ModuleFile Remappings:\n"; | |||
7618 | dumpModuleIDMap("Global bit offset map", GlobalBitOffsetsMap); | |||
7619 | dumpModuleIDMap("Global source location entry map", GlobalSLocEntryMap); | |||
7620 | dumpModuleIDMap("Global type map", GlobalTypeMap); | |||
7621 | dumpModuleIDMap("Global declaration map", GlobalDeclMap); | |||
7622 | dumpModuleIDMap("Global identifier map", GlobalIdentifierMap); | |||
7623 | dumpModuleIDMap("Global macro map", GlobalMacroMap); | |||
7624 | dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap); | |||
7625 | dumpModuleIDMap("Global selector map", GlobalSelectorMap); | |||
7626 | dumpModuleIDMap("Global preprocessed entity map", | |||
7627 | GlobalPreprocessedEntityMap); | |||
7628 | ||||
7629 | llvm::errs() << "\n*** PCH/Modules Loaded:"; | |||
7630 | for (ModuleFile &M : ModuleMgr) | |||
7631 | M.dump(); | |||
7632 | } | |||
7633 | ||||
7634 | /// Return the amount of memory used by memory buffers, breaking down | |||
7635 | /// by heap-backed versus mmap'ed memory. | |||
7636 | void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const { | |||
7637 | for (ModuleFile &I : ModuleMgr) { | |||
7638 | if (llvm::MemoryBuffer *buf = I.Buffer) { | |||
7639 | size_t bytes = buf->getBufferSize(); | |||
7640 | switch (buf->getBufferKind()) { | |||
7641 | case llvm::MemoryBuffer::MemoryBuffer_Malloc: | |||
7642 | sizes.malloc_bytes += bytes; | |||
7643 | break; | |||
7644 | case llvm::MemoryBuffer::MemoryBuffer_MMap: | |||
7645 | sizes.mmap_bytes += bytes; | |||
7646 | break; | |||
7647 | } | |||
7648 | } | |||
7649 | } | |||
7650 | } | |||
7651 | ||||
7652 | void ASTReader::InitializeSema(Sema &S) { | |||
7653 | SemaObj = &S; | |||
7654 | S.addExternalSource(this); | |||
7655 | ||||
7656 | // Makes sure any declarations that were deserialized "too early" | |||
7657 | // still get added to the identifier's declaration chains. | |||
7658 | for (uint64_t ID : PreloadedDeclIDs) { | |||
7659 | NamedDecl *D = cast<NamedDecl>(GetDecl(ID)); | |||
7660 | pushExternalDeclIntoScope(D, D->getDeclName()); | |||
7661 | } | |||
7662 | PreloadedDeclIDs.clear(); | |||
7663 | ||||
7664 | // FIXME: What happens if these are changed by a module import? | |||
7665 | if (!FPPragmaOptions.empty()) { | |||
7666 | assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS")(static_cast <bool> (FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS") ? void (0) : __assert_fail ("FPPragmaOptions.size() == 1 && \"Wrong number of FP_PRAGMA_OPTIONS\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7666, __extension__ __PRETTY_FUNCTION__)); | |||
7667 | SemaObj->FPFeatures = FPOptions(FPPragmaOptions[0]); | |||
7668 | } | |||
7669 | ||||
7670 | SemaObj->OpenCLFeatures.copy(OpenCLExtensions); | |||
7671 | SemaObj->OpenCLTypeExtMap = OpenCLTypeExtMap; | |||
7672 | SemaObj->OpenCLDeclExtMap = OpenCLDeclExtMap; | |||
7673 | ||||
7674 | UpdateSema(); | |||
7675 | } | |||
7676 | ||||
7677 | void ASTReader::UpdateSema() { | |||
7678 | assert(SemaObj && "no Sema to update")(static_cast <bool> (SemaObj && "no Sema to update" ) ? void (0) : __assert_fail ("SemaObj && \"no Sema to update\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7678, __extension__ __PRETTY_FUNCTION__)); | |||
7679 | ||||
7680 | // Load the offsets of the declarations that Sema references. | |||
7681 | // They will be lazily deserialized when needed. | |||
7682 | if (!SemaDeclRefs.empty()) { | |||
7683 | assert(SemaDeclRefs.size() % 3 == 0)(static_cast <bool> (SemaDeclRefs.size() % 3 == 0) ? void (0) : __assert_fail ("SemaDeclRefs.size() % 3 == 0", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7683, __extension__ __PRETTY_FUNCTION__)); | |||
7684 | for (unsigned I = 0; I != SemaDeclRefs.size(); I += 3) { | |||
7685 | if (!SemaObj->StdNamespace) | |||
7686 | SemaObj->StdNamespace = SemaDeclRefs[I]; | |||
7687 | if (!SemaObj->StdBadAlloc) | |||
7688 | SemaObj->StdBadAlloc = SemaDeclRefs[I+1]; | |||
7689 | if (!SemaObj->StdAlignValT) | |||
7690 | SemaObj->StdAlignValT = SemaDeclRefs[I+2]; | |||
7691 | } | |||
7692 | SemaDeclRefs.clear(); | |||
7693 | } | |||
7694 | ||||
7695 | // Update the state of pragmas. Use the same API as if we had encountered the | |||
7696 | // pragma in the source. | |||
7697 | if(OptimizeOffPragmaLocation.isValid()) | |||
7698 | SemaObj->ActOnPragmaOptimize(/* IsOn = */ false, OptimizeOffPragmaLocation); | |||
7699 | if (PragmaMSStructState != -1) | |||
7700 | SemaObj->ActOnPragmaMSStruct((PragmaMSStructKind)PragmaMSStructState); | |||
7701 | if (PointersToMembersPragmaLocation.isValid()) { | |||
7702 | SemaObj->ActOnPragmaMSPointersToMembers( | |||
7703 | (LangOptions::PragmaMSPointersToMembersKind) | |||
7704 | PragmaMSPointersToMembersState, | |||
7705 | PointersToMembersPragmaLocation); | |||
7706 | } | |||
7707 | SemaObj->ForceCUDAHostDeviceDepth = ForceCUDAHostDeviceDepth; | |||
7708 | ||||
7709 | if (PragmaPackCurrentValue) { | |||
7710 | // The bottom of the stack might have a default value. It must be adjusted | |||
7711 | // to the current value to ensure that the packing state is preserved after | |||
7712 | // popping entries that were included/imported from a PCH/module. | |||
7713 | bool DropFirst = false; | |||
7714 | if (!PragmaPackStack.empty() && | |||
7715 | PragmaPackStack.front().Location.isInvalid()) { | |||
7716 | assert(PragmaPackStack.front().Value == SemaObj->PackStack.DefaultValue &&(static_cast <bool> (PragmaPackStack.front().Value == SemaObj ->PackStack.DefaultValue && "Expected a default alignment value" ) ? void (0) : __assert_fail ("PragmaPackStack.front().Value == SemaObj->PackStack.DefaultValue && \"Expected a default alignment value\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7717, __extension__ __PRETTY_FUNCTION__)) | |||
7717 | "Expected a default alignment value")(static_cast <bool> (PragmaPackStack.front().Value == SemaObj ->PackStack.DefaultValue && "Expected a default alignment value" ) ? void (0) : __assert_fail ("PragmaPackStack.front().Value == SemaObj->PackStack.DefaultValue && \"Expected a default alignment value\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7717, __extension__ __PRETTY_FUNCTION__)); | |||
7718 | SemaObj->PackStack.Stack.emplace_back( | |||
7719 | PragmaPackStack.front().SlotLabel, SemaObj->PackStack.CurrentValue, | |||
7720 | SemaObj->PackStack.CurrentPragmaLocation, | |||
7721 | PragmaPackStack.front().PushLocation); | |||
7722 | DropFirst = true; | |||
7723 | } | |||
7724 | for (const auto &Entry : | |||
7725 | llvm::makeArrayRef(PragmaPackStack).drop_front(DropFirst ? 1 : 0)) | |||
7726 | SemaObj->PackStack.Stack.emplace_back(Entry.SlotLabel, Entry.Value, | |||
7727 | Entry.Location, Entry.PushLocation); | |||
7728 | if (PragmaPackCurrentLocation.isInvalid()) { | |||
7729 | assert(*PragmaPackCurrentValue == SemaObj->PackStack.DefaultValue &&(static_cast <bool> (*PragmaPackCurrentValue == SemaObj ->PackStack.DefaultValue && "Expected a default alignment value" ) ? void (0) : __assert_fail ("*PragmaPackCurrentValue == SemaObj->PackStack.DefaultValue && \"Expected a default alignment value\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7730, __extension__ __PRETTY_FUNCTION__)) | |||
7730 | "Expected a default alignment value")(static_cast <bool> (*PragmaPackCurrentValue == SemaObj ->PackStack.DefaultValue && "Expected a default alignment value" ) ? void (0) : __assert_fail ("*PragmaPackCurrentValue == SemaObj->PackStack.DefaultValue && \"Expected a default alignment value\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 7730, __extension__ __PRETTY_FUNCTION__)); | |||
7731 | // Keep the current values. | |||
7732 | } else { | |||
7733 | SemaObj->PackStack.CurrentValue = *PragmaPackCurrentValue; | |||
7734 | SemaObj->PackStack.CurrentPragmaLocation = PragmaPackCurrentLocation; | |||
7735 | } | |||
7736 | } | |||
7737 | } | |||
7738 | ||||
7739 | IdentifierInfo *ASTReader::get(StringRef Name) { | |||
7740 | // Note that we are loading an identifier. | |||
7741 | Deserializing AnIdentifier(this); | |||
7742 | ||||
7743 | IdentifierLookupVisitor Visitor(Name, /*PriorGeneration=*/0, | |||
7744 | NumIdentifierLookups, | |||
7745 | NumIdentifierLookupHits); | |||
7746 | ||||
7747 | // We don't need to do identifier table lookups in C++ modules (we preload | |||
7748 | // all interesting declarations, and don't need to use the scope for name | |||
7749 | // lookups). Perform the lookup in PCH files, though, since we don't build | |||
7750 | // a complete initial identifier table if we're carrying on from a PCH. | |||
7751 | if (PP.getLangOpts().CPlusPlus) { | |||
7752 | for (auto F : ModuleMgr.pch_modules()) | |||
7753 | if (Visitor(*F)) | |||
7754 | break; | |||
7755 | } else { | |||
7756 | // If there is a global index, look there first to determine which modules | |||
7757 | // provably do not have any results for this identifier. | |||
7758 | GlobalModuleIndex::HitSet Hits; | |||
7759 | GlobalModuleIndex::HitSet *HitsPtr = nullptr; | |||
7760 | if (!loadGlobalIndex()) { | |||
7761 | if (GlobalIndex->lookupIdentifier(Name, Hits)) { | |||
7762 | HitsPtr = &Hits; | |||
7763 | } | |||
7764 | } | |||
7765 | ||||
7766 | ModuleMgr.visit(Visitor, HitsPtr); | |||
7767 | } | |||
7768 | ||||
7769 | IdentifierInfo *II = Visitor.getIdentifierInfo(); | |||
7770 | markIdentifierUpToDate(II); | |||
7771 | return II; | |||
7772 | } | |||
7773 | ||||
7774 | namespace clang { | |||
7775 | ||||
7776 | /// \brief An identifier-lookup iterator that enumerates all of the | |||
7777 | /// identifiers stored within a set of AST files. | |||
7778 | class ASTIdentifierIterator : public IdentifierIterator { | |||
7779 | /// \brief The AST reader whose identifiers are being enumerated. | |||
7780 | const ASTReader &Reader; | |||
7781 | ||||
7782 | /// \brief The current index into the chain of AST files stored in | |||
7783 | /// the AST reader. | |||
7784 | unsigned Index; | |||
7785 | ||||
7786 | /// \brief The current position within the identifier lookup table | |||
7787 | /// of the current AST file. | |||
7788 | ASTIdentifierLookupTable::key_iterator Current; | |||
7789 | ||||
7790 | /// \brief The end position within the identifier lookup table of | |||
7791 | /// the current AST file. | |||
7792 | ASTIdentifierLookupTable::key_iterator End; | |||
7793 | ||||
7794 | /// \brief Whether to skip any modules in the ASTReader. | |||
7795 | bool SkipModules; | |||
7796 | ||||
7797 | public: | |||
7798 | explicit ASTIdentifierIterator(const ASTReader &Reader, | |||
7799 | bool SkipModules = false); | |||
7800 | ||||
7801 | StringRef Next() override; | |||
7802 | }; | |||
7803 | ||||
7804 | } // namespace clang | |||
7805 | ||||
7806 | ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader, | |||
7807 | bool SkipModules) | |||
7808 | : Reader(Reader), Index(Reader.ModuleMgr.size()), SkipModules(SkipModules) { | |||
7809 | } | |||
7810 | ||||
7811 | StringRef ASTIdentifierIterator::Next() { | |||
7812 | while (Current == End) { | |||
7813 | // If we have exhausted all of our AST files, we're done. | |||
7814 | if (Index == 0) | |||
7815 | return StringRef(); | |||
7816 | ||||
7817 | --Index; | |||
7818 | ModuleFile &F = Reader.ModuleMgr[Index]; | |||
7819 | if (SkipModules && F.isModule()) | |||
7820 | continue; | |||
7821 | ||||
7822 | ASTIdentifierLookupTable *IdTable = | |||
7823 | (ASTIdentifierLookupTable *)F.IdentifierLookupTable; | |||
7824 | Current = IdTable->key_begin(); | |||
7825 | End = IdTable->key_end(); | |||
7826 | } | |||
7827 | ||||
7828 | // We have any identifiers remaining in the current AST file; return | |||
7829 | // the next one. | |||
7830 | StringRef Result = *Current; | |||
7831 | ++Current; | |||
7832 | return Result; | |||
7833 | } | |||
7834 | ||||
7835 | namespace { | |||
7836 | ||||
7837 | /// A utility for appending two IdentifierIterators. | |||
7838 | class ChainedIdentifierIterator : public IdentifierIterator { | |||
7839 | std::unique_ptr<IdentifierIterator> Current; | |||
7840 | std::unique_ptr<IdentifierIterator> Queued; | |||
7841 | ||||
7842 | public: | |||
7843 | ChainedIdentifierIterator(std::unique_ptr<IdentifierIterator> First, | |||
7844 | std::unique_ptr<IdentifierIterator> Second) | |||
7845 | : Current(std::move(First)), Queued(std::move(Second)) {} | |||
7846 | ||||
7847 | StringRef Next() override { | |||
7848 | if (!Current) | |||
7849 | return StringRef(); | |||
7850 | ||||
7851 | StringRef result = Current->Next(); | |||
7852 | if (!result.empty()) | |||
7853 | return result; | |||
7854 | ||||
7855 | // Try the queued iterator, which may itself be empty. | |||
7856 | Current.reset(); | |||
7857 | std::swap(Current, Queued); | |||
7858 | return Next(); | |||
7859 | } | |||
7860 | }; | |||
7861 | ||||
7862 | } // namespace | |||
7863 | ||||
7864 | IdentifierIterator *ASTReader::getIdentifiers() { | |||
7865 | if (!loadGlobalIndex()) { | |||
7866 | std::unique_ptr<IdentifierIterator> ReaderIter( | |||
7867 | new ASTIdentifierIterator(*this, /*SkipModules=*/true)); | |||
7868 | std::unique_ptr<IdentifierIterator> ModulesIter( | |||
7869 | GlobalIndex->createIdentifierIterator()); | |||
7870 | return new ChainedIdentifierIterator(std::move(ReaderIter), | |||
7871 | std::move(ModulesIter)); | |||
7872 | } | |||
7873 | ||||
7874 | return new ASTIdentifierIterator(*this); | |||
7875 | } | |||
7876 | ||||
7877 | namespace clang { | |||
7878 | namespace serialization { | |||
7879 | ||||
7880 | class ReadMethodPoolVisitor { | |||
7881 | ASTReader &Reader; | |||
7882 | Selector Sel; | |||
7883 | unsigned PriorGeneration; | |||
7884 | unsigned InstanceBits = 0; | |||
7885 | unsigned FactoryBits = 0; | |||
7886 | bool InstanceHasMoreThanOneDecl = false; | |||
7887 | bool FactoryHasMoreThanOneDecl = false; | |||
7888 | SmallVector<ObjCMethodDecl *, 4> InstanceMethods; | |||
7889 | SmallVector<ObjCMethodDecl *, 4> FactoryMethods; | |||
7890 | ||||
7891 | public: | |||
7892 | ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel, | |||
7893 | unsigned PriorGeneration) | |||
7894 | : Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) {} | |||
7895 | ||||
7896 | bool operator()(ModuleFile &M) { | |||
7897 | if (!M.SelectorLookupTable) | |||
7898 | return false; | |||
7899 | ||||
7900 | // If we've already searched this module file, skip it now. | |||
7901 | if (M.Generation <= PriorGeneration) | |||
7902 | return true; | |||
7903 | ||||
7904 | ++Reader.NumMethodPoolTableLookups; | |||
7905 | ASTSelectorLookupTable *PoolTable | |||
7906 | = (ASTSelectorLookupTable*)M.SelectorLookupTable; | |||
7907 | ASTSelectorLookupTable::iterator Pos = PoolTable->find(Sel); | |||
7908 | if (Pos == PoolTable->end()) | |||
7909 | return false; | |||
7910 | ||||
7911 | ++Reader.NumMethodPoolTableHits; | |||
7912 | ++Reader.NumSelectorsRead; | |||
7913 | // FIXME: Not quite happy with the statistics here. We probably should | |||
7914 | // disable this tracking when called via LoadSelector. | |||
7915 | // Also, should entries without methods count as misses? | |||
7916 | ++Reader.NumMethodPoolEntriesRead; | |||
7917 | ASTSelectorLookupTrait::data_type Data = *Pos; | |||
7918 | if (Reader.DeserializationListener) | |||
7919 | Reader.DeserializationListener->SelectorRead(Data.ID, Sel); | |||
7920 | ||||
7921 | InstanceMethods.append(Data.Instance.begin(), Data.Instance.end()); | |||
7922 | FactoryMethods.append(Data.Factory.begin(), Data.Factory.end()); | |||
7923 | InstanceBits = Data.InstanceBits; | |||
7924 | FactoryBits = Data.FactoryBits; | |||
7925 | InstanceHasMoreThanOneDecl = Data.InstanceHasMoreThanOneDecl; | |||
7926 | FactoryHasMoreThanOneDecl = Data.FactoryHasMoreThanOneDecl; | |||
7927 | return true; | |||
7928 | } | |||
7929 | ||||
7930 | /// \brief Retrieve the instance methods found by this visitor. | |||
7931 | ArrayRef<ObjCMethodDecl *> getInstanceMethods() const { | |||
7932 | return InstanceMethods; | |||
7933 | } | |||
7934 | ||||
7935 | /// \brief Retrieve the instance methods found by this visitor. | |||
7936 | ArrayRef<ObjCMethodDecl *> getFactoryMethods() const { | |||
7937 | return FactoryMethods; | |||
7938 | } | |||
7939 | ||||
7940 | unsigned getInstanceBits() const { return InstanceBits; } | |||
7941 | unsigned getFactoryBits() const { return FactoryBits; } | |||
7942 | ||||
7943 | bool instanceHasMoreThanOneDecl() const { | |||
7944 | return InstanceHasMoreThanOneDecl; | |||
7945 | } | |||
7946 | ||||
7947 | bool factoryHasMoreThanOneDecl() const { return FactoryHasMoreThanOneDecl; } | |||
7948 | }; | |||
7949 | ||||
7950 | } // namespace serialization | |||
7951 | } // namespace clang | |||
7952 | ||||
7953 | /// \brief Add the given set of methods to the method list. | |||
7954 | static void addMethodsToPool(Sema &S, ArrayRef<ObjCMethodDecl *> Methods, | |||
7955 | ObjCMethodList &List) { | |||
7956 | for (unsigned I = 0, N = Methods.size(); I != N; ++I) { | |||
7957 | S.addMethodToGlobalList(&List, Methods[I]); | |||
7958 | } | |||
7959 | } | |||
7960 | ||||
7961 | void ASTReader::ReadMethodPool(Selector Sel) { | |||
7962 | // Get the selector generation and update it to the current generation. | |||
7963 | unsigned &Generation = SelectorGeneration[Sel]; | |||
7964 | unsigned PriorGeneration = Generation; | |||
7965 | Generation = getGeneration(); | |||
7966 | SelectorOutOfDate[Sel] = false; | |||
7967 | ||||
7968 | // Search for methods defined with this selector. | |||
7969 | ++NumMethodPoolLookups; | |||
7970 | ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration); | |||
7971 | ModuleMgr.visit(Visitor); | |||
7972 | ||||
7973 | if (Visitor.getInstanceMethods().empty() && | |||
7974 | Visitor.getFactoryMethods().empty()) | |||
7975 | return; | |||
7976 | ||||
7977 | ++NumMethodPoolHits; | |||
7978 | ||||
7979 | if (!getSema()) | |||
7980 | return; | |||
7981 | ||||
7982 | Sema &S = *getSema(); | |||
7983 | Sema::GlobalMethodPool::iterator Pos | |||
7984 | = S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first; | |||
7985 | ||||
7986 | Pos->second.first.setBits(Visitor.getInstanceBits()); | |||
7987 | Pos->second.first.setHasMoreThanOneDecl(Visitor.instanceHasMoreThanOneDecl()); | |||
7988 | Pos->second.second.setBits(Visitor.getFactoryBits()); | |||
7989 | Pos->second.second.setHasMoreThanOneDecl(Visitor.factoryHasMoreThanOneDecl()); | |||
7990 | ||||
7991 | // Add methods to the global pool *after* setting hasMoreThanOneDecl, since | |||
7992 | // when building a module we keep every method individually and may need to | |||
7993 | // update hasMoreThanOneDecl as we add the methods. | |||
7994 | addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first); | |||
7995 | addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second); | |||
7996 | } | |||
7997 | ||||
7998 | void ASTReader::updateOutOfDateSelector(Selector Sel) { | |||
7999 | if (SelectorOutOfDate[Sel]) | |||
8000 | ReadMethodPool(Sel); | |||
8001 | } | |||
8002 | ||||
8003 | void ASTReader::ReadKnownNamespaces( | |||
8004 | SmallVectorImpl<NamespaceDecl *> &Namespaces) { | |||
8005 | Namespaces.clear(); | |||
8006 | ||||
8007 | for (unsigned I = 0, N = KnownNamespaces.size(); I != N; ++I) { | |||
8008 | if (NamespaceDecl *Namespace | |||
8009 | = dyn_cast_or_null<NamespaceDecl>(GetDecl(KnownNamespaces[I]))) | |||
8010 | Namespaces.push_back(Namespace); | |||
8011 | } | |||
8012 | } | |||
8013 | ||||
8014 | void ASTReader::ReadUndefinedButUsed( | |||
8015 | llvm::MapVector<NamedDecl *, SourceLocation> &Undefined) { | |||
8016 | for (unsigned Idx = 0, N = UndefinedButUsed.size(); Idx != N;) { | |||
8017 | NamedDecl *D = cast<NamedDecl>(GetDecl(UndefinedButUsed[Idx++])); | |||
8018 | SourceLocation Loc = | |||
8019 | SourceLocation::getFromRawEncoding(UndefinedButUsed[Idx++]); | |||
8020 | Undefined.insert(std::make_pair(D, Loc)); | |||
8021 | } | |||
8022 | } | |||
8023 | ||||
8024 | void ASTReader::ReadMismatchingDeleteExpressions(llvm::MapVector< | |||
8025 | FieldDecl *, llvm::SmallVector<std::pair<SourceLocation, bool>, 4>> & | |||
8026 | Exprs) { | |||
8027 | for (unsigned Idx = 0, N = DelayedDeleteExprs.size(); Idx != N;) { | |||
8028 | FieldDecl *FD = cast<FieldDecl>(GetDecl(DelayedDeleteExprs[Idx++])); | |||
8029 | uint64_t Count = DelayedDeleteExprs[Idx++]; | |||
8030 | for (uint64_t C = 0; C < Count; ++C) { | |||
8031 | SourceLocation DeleteLoc = | |||
8032 | SourceLocation::getFromRawEncoding(DelayedDeleteExprs[Idx++]); | |||
8033 | const bool IsArrayForm = DelayedDeleteExprs[Idx++]; | |||
8034 | Exprs[FD].push_back(std::make_pair(DeleteLoc, IsArrayForm)); | |||
8035 | } | |||
8036 | } | |||
8037 | } | |||
8038 | ||||
8039 | void ASTReader::ReadTentativeDefinitions( | |||
8040 | SmallVectorImpl<VarDecl *> &TentativeDefs) { | |||
8041 | for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) { | |||
8042 | VarDecl *Var = dyn_cast_or_null<VarDecl>(GetDecl(TentativeDefinitions[I])); | |||
8043 | if (Var) | |||
8044 | TentativeDefs.push_back(Var); | |||
8045 | } | |||
8046 | TentativeDefinitions.clear(); | |||
8047 | } | |||
8048 | ||||
8049 | void ASTReader::ReadUnusedFileScopedDecls( | |||
8050 | SmallVectorImpl<const DeclaratorDecl *> &Decls) { | |||
8051 | for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) { | |||
8052 | DeclaratorDecl *D | |||
8053 | = dyn_cast_or_null<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I])); | |||
8054 | if (D) | |||
8055 | Decls.push_back(D); | |||
8056 | } | |||
8057 | UnusedFileScopedDecls.clear(); | |||
8058 | } | |||
8059 | ||||
8060 | void ASTReader::ReadDelegatingConstructors( | |||
8061 | SmallVectorImpl<CXXConstructorDecl *> &Decls) { | |||
8062 | for (unsigned I = 0, N = DelegatingCtorDecls.size(); I != N; ++I) { | |||
8063 | CXXConstructorDecl *D | |||
8064 | = dyn_cast_or_null<CXXConstructorDecl>(GetDecl(DelegatingCtorDecls[I])); | |||
8065 | if (D) | |||
8066 | Decls.push_back(D); | |||
8067 | } | |||
8068 | DelegatingCtorDecls.clear(); | |||
8069 | } | |||
8070 | ||||
8071 | void ASTReader::ReadExtVectorDecls(SmallVectorImpl<TypedefNameDecl *> &Decls) { | |||
8072 | for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I) { | |||
8073 | TypedefNameDecl *D | |||
8074 | = dyn_cast_or_null<TypedefNameDecl>(GetDecl(ExtVectorDecls[I])); | |||
8075 | if (D) | |||
8076 | Decls.push_back(D); | |||
8077 | } | |||
8078 | ExtVectorDecls.clear(); | |||
8079 | } | |||
8080 | ||||
8081 | void ASTReader::ReadUnusedLocalTypedefNameCandidates( | |||
8082 | llvm::SmallSetVector<const TypedefNameDecl *, 4> &Decls) { | |||
8083 | for (unsigned I = 0, N = UnusedLocalTypedefNameCandidates.size(); I != N; | |||
8084 | ++I) { | |||
8085 | TypedefNameDecl *D = dyn_cast_or_null<TypedefNameDecl>( | |||
8086 | GetDecl(UnusedLocalTypedefNameCandidates[I])); | |||
8087 | if (D) | |||
8088 | Decls.insert(D); | |||
8089 | } | |||
8090 | UnusedLocalTypedefNameCandidates.clear(); | |||
8091 | } | |||
8092 | ||||
8093 | void ASTReader::ReadReferencedSelectors( | |||
8094 | SmallVectorImpl<std::pair<Selector, SourceLocation>> &Sels) { | |||
8095 | if (ReferencedSelectorsData.empty()) | |||
8096 | return; | |||
8097 | ||||
8098 | // If there are @selector references added them to its pool. This is for | |||
8099 | // implementation of -Wselector. | |||
8100 | unsigned int DataSize = ReferencedSelectorsData.size()-1; | |||
8101 | unsigned I = 0; | |||
8102 | while (I < DataSize) { | |||
8103 | Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]); | |||
8104 | SourceLocation SelLoc | |||
8105 | = SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]); | |||
8106 | Sels.push_back(std::make_pair(Sel, SelLoc)); | |||
8107 | } | |||
8108 | ReferencedSelectorsData.clear(); | |||
8109 | } | |||
8110 | ||||
8111 | void ASTReader::ReadWeakUndeclaredIdentifiers( | |||
8112 | SmallVectorImpl<std::pair<IdentifierInfo *, WeakInfo>> &WeakIDs) { | |||
8113 | if (WeakUndeclaredIdentifiers.empty()) | |||
8114 | return; | |||
8115 | ||||
8116 | for (unsigned I = 0, N = WeakUndeclaredIdentifiers.size(); I < N; /*none*/) { | |||
8117 | IdentifierInfo *WeakId | |||
8118 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]); | |||
8119 | IdentifierInfo *AliasId | |||
8120 | = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]); | |||
8121 | SourceLocation Loc | |||
8122 | = SourceLocation::getFromRawEncoding(WeakUndeclaredIdentifiers[I++]); | |||
8123 | bool Used = WeakUndeclaredIdentifiers[I++]; | |||
8124 | WeakInfo WI(AliasId, Loc); | |||
8125 | WI.setUsed(Used); | |||
8126 | WeakIDs.push_back(std::make_pair(WeakId, WI)); | |||
8127 | } | |||
8128 | WeakUndeclaredIdentifiers.clear(); | |||
8129 | } | |||
8130 | ||||
8131 | void ASTReader::ReadUsedVTables(SmallVectorImpl<ExternalVTableUse> &VTables) { | |||
8132 | for (unsigned Idx = 0, N = VTableUses.size(); Idx < N; /* In loop */) { | |||
8133 | ExternalVTableUse VT; | |||
8134 | VT.Record = dyn_cast_or_null<CXXRecordDecl>(GetDecl(VTableUses[Idx++])); | |||
8135 | VT.Location = SourceLocation::getFromRawEncoding(VTableUses[Idx++]); | |||
8136 | VT.DefinitionRequired = VTableUses[Idx++]; | |||
8137 | VTables.push_back(VT); | |||
8138 | } | |||
8139 | ||||
8140 | VTableUses.clear(); | |||
8141 | } | |||
8142 | ||||
8143 | void ASTReader::ReadPendingInstantiations( | |||
8144 | SmallVectorImpl<std::pair<ValueDecl *, SourceLocation>> &Pending) { | |||
8145 | for (unsigned Idx = 0, N = PendingInstantiations.size(); Idx < N;) { | |||
8146 | ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++])); | |||
8147 | SourceLocation Loc | |||
8148 | = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]); | |||
8149 | ||||
8150 | Pending.push_back(std::make_pair(D, Loc)); | |||
8151 | } | |||
8152 | PendingInstantiations.clear(); | |||
8153 | } | |||
8154 | ||||
8155 | void ASTReader::ReadLateParsedTemplates( | |||
8156 | llvm::MapVector<const FunctionDecl *, std::unique_ptr<LateParsedTemplate>> | |||
8157 | &LPTMap) { | |||
8158 | for (unsigned Idx = 0, N = LateParsedTemplates.size(); Idx < N; | |||
8159 | /* In loop */) { | |||
8160 | FunctionDecl *FD = cast<FunctionDecl>(GetDecl(LateParsedTemplates[Idx++])); | |||
8161 | ||||
8162 | auto LT = llvm::make_unique<LateParsedTemplate>(); | |||
8163 | LT->D = GetDecl(LateParsedTemplates[Idx++]); | |||
8164 | ||||
8165 | ModuleFile *F = getOwningModuleFile(LT->D); | |||
8166 | assert(F && "No module")(static_cast <bool> (F && "No module") ? void ( 0) : __assert_fail ("F && \"No module\"", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8166, __extension__ __PRETTY_FUNCTION__)); | |||
8167 | ||||
8168 | unsigned TokN = LateParsedTemplates[Idx++]; | |||
8169 | LT->Toks.reserve(TokN); | |||
8170 | for (unsigned T = 0; T < TokN; ++T) | |||
8171 | LT->Toks.push_back(ReadToken(*F, LateParsedTemplates, Idx)); | |||
8172 | ||||
8173 | LPTMap.insert(std::make_pair(FD, std::move(LT))); | |||
8174 | } | |||
8175 | ||||
8176 | LateParsedTemplates.clear(); | |||
8177 | } | |||
8178 | ||||
8179 | void ASTReader::LoadSelector(Selector Sel) { | |||
8180 | // It would be complicated to avoid reading the methods anyway. So don't. | |||
8181 | ReadMethodPool(Sel); | |||
8182 | } | |||
8183 | ||||
8184 | void ASTReader::SetIdentifierInfo(IdentifierID ID, IdentifierInfo *II) { | |||
8185 | assert(ID && "Non-zero identifier ID required")(static_cast <bool> (ID && "Non-zero identifier ID required" ) ? void (0) : __assert_fail ("ID && \"Non-zero identifier ID required\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8185, __extension__ __PRETTY_FUNCTION__)); | |||
8186 | assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range")(static_cast <bool> (ID <= IdentifiersLoaded.size() && "identifier ID out of range") ? void (0) : __assert_fail ("ID <= IdentifiersLoaded.size() && \"identifier ID out of range\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8186, __extension__ __PRETTY_FUNCTION__)); | |||
8187 | IdentifiersLoaded[ID - 1] = II; | |||
8188 | if (DeserializationListener) | |||
8189 | DeserializationListener->IdentifierRead(ID, II); | |||
8190 | } | |||
8191 | ||||
8192 | /// \brief Set the globally-visible declarations associated with the given | |||
8193 | /// identifier. | |||
8194 | /// | |||
8195 | /// If the AST reader is currently in a state where the given declaration IDs | |||
8196 | /// cannot safely be resolved, they are queued until it is safe to resolve | |||
8197 | /// them. | |||
8198 | /// | |||
8199 | /// \param II an IdentifierInfo that refers to one or more globally-visible | |||
8200 | /// declarations. | |||
8201 | /// | |||
8202 | /// \param DeclIDs the set of declaration IDs with the name @p II that are | |||
8203 | /// visible at global scope. | |||
8204 | /// | |||
8205 | /// \param Decls if non-null, this vector will be populated with the set of | |||
8206 | /// deserialized declarations. These declarations will not be pushed into | |||
8207 | /// scope. | |||
8208 | void | |||
8209 | ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II, | |||
8210 | const SmallVectorImpl<uint32_t> &DeclIDs, | |||
8211 | SmallVectorImpl<Decl *> *Decls) { | |||
8212 | if (NumCurrentElementsDeserializing && !Decls) { | |||
8213 | PendingIdentifierInfos[II].append(DeclIDs.begin(), DeclIDs.end()); | |||
8214 | return; | |||
8215 | } | |||
8216 | ||||
8217 | for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) { | |||
8218 | if (!SemaObj) { | |||
8219 | // Queue this declaration so that it will be added to the | |||
8220 | // translation unit scope and identifier's declaration chain | |||
8221 | // once a Sema object is known. | |||
8222 | PreloadedDeclIDs.push_back(DeclIDs[I]); | |||
8223 | continue; | |||
8224 | } | |||
8225 | ||||
8226 | NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I])); | |||
8227 | ||||
8228 | // If we're simply supposed to record the declarations, do so now. | |||
8229 | if (Decls) { | |||
8230 | Decls->push_back(D); | |||
8231 | continue; | |||
8232 | } | |||
8233 | ||||
8234 | // Introduce this declaration into the translation-unit scope | |||
8235 | // and add it to the declaration chain for this identifier, so | |||
8236 | // that (unqualified) name lookup will find it. | |||
8237 | pushExternalDeclIntoScope(D, II); | |||
8238 | } | |||
8239 | } | |||
8240 | ||||
8241 | IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) { | |||
8242 | if (ID == 0) | |||
8243 | return nullptr; | |||
8244 | ||||
8245 | if (IdentifiersLoaded.empty()) { | |||
8246 | Error("no identifier table in AST file"); | |||
8247 | return nullptr; | |||
8248 | } | |||
8249 | ||||
8250 | ID -= 1; | |||
8251 | if (!IdentifiersLoaded[ID]) { | |||
8252 | GlobalIdentifierMapType::iterator I = GlobalIdentifierMap.find(ID + 1); | |||
8253 | assert(I != GlobalIdentifierMap.end() && "Corrupted global identifier map")(static_cast <bool> (I != GlobalIdentifierMap.end() && "Corrupted global identifier map") ? void (0) : __assert_fail ("I != GlobalIdentifierMap.end() && \"Corrupted global identifier map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8253, __extension__ __PRETTY_FUNCTION__)); | |||
8254 | ModuleFile *M = I->second; | |||
8255 | unsigned Index = ID - M->BaseIdentifierID; | |||
8256 | const char *Str = M->IdentifierTableData + M->IdentifierOffsets[Index]; | |||
8257 | ||||
8258 | // All of the strings in the AST file are preceded by a 16-bit length. | |||
8259 | // Extract that 16-bit length to avoid having to execute strlen(). | |||
8260 | // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as | |||
8261 | // unsigned integers. This is important to avoid integer overflow when | |||
8262 | // we cast them to 'unsigned'. | |||
8263 | const unsigned char *StrLenPtr = (const unsigned char*) Str - 2; | |||
8264 | unsigned StrLen = (((unsigned) StrLenPtr[0]) | |||
8265 | | (((unsigned) StrLenPtr[1]) << 8)) - 1; | |||
8266 | auto &II = PP.getIdentifierTable().get(StringRef(Str, StrLen)); | |||
8267 | IdentifiersLoaded[ID] = &II; | |||
8268 | markIdentifierFromAST(*this, II); | |||
8269 | if (DeserializationListener) | |||
8270 | DeserializationListener->IdentifierRead(ID + 1, &II); | |||
8271 | } | |||
8272 | ||||
8273 | return IdentifiersLoaded[ID]; | |||
8274 | } | |||
8275 | ||||
8276 | IdentifierInfo *ASTReader::getLocalIdentifier(ModuleFile &M, unsigned LocalID) { | |||
8277 | return DecodeIdentifierInfo(getGlobalIdentifierID(M, LocalID)); | |||
8278 | } | |||
8279 | ||||
8280 | IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) { | |||
8281 | if (LocalID < NUM_PREDEF_IDENT_IDS) | |||
8282 | return LocalID; | |||
8283 | ||||
8284 | if (!M.ModuleOffsetMap.empty()) | |||
8285 | ReadModuleOffsetMap(M); | |||
8286 | ||||
8287 | ContinuousRangeMap<uint32_t, int, 2>::iterator I | |||
8288 | = M.IdentifierRemap.find(LocalID - NUM_PREDEF_IDENT_IDS); | |||
8289 | assert(I != M.IdentifierRemap.end()(static_cast <bool> (I != M.IdentifierRemap.end() && "Invalid index into identifier index remap") ? void (0) : __assert_fail ("I != M.IdentifierRemap.end() && \"Invalid index into identifier index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8290, __extension__ __PRETTY_FUNCTION__)) | |||
8290 | && "Invalid index into identifier index remap")(static_cast <bool> (I != M.IdentifierRemap.end() && "Invalid index into identifier index remap") ? void (0) : __assert_fail ("I != M.IdentifierRemap.end() && \"Invalid index into identifier index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8290, __extension__ __PRETTY_FUNCTION__)); | |||
8291 | ||||
8292 | return LocalID + I->second; | |||
8293 | } | |||
8294 | ||||
8295 | MacroInfo *ASTReader::getMacro(MacroID ID) { | |||
8296 | if (ID == 0) | |||
8297 | return nullptr; | |||
8298 | ||||
8299 | if (MacrosLoaded.empty()) { | |||
8300 | Error("no macro table in AST file"); | |||
8301 | return nullptr; | |||
8302 | } | |||
8303 | ||||
8304 | ID -= NUM_PREDEF_MACRO_IDS; | |||
8305 | if (!MacrosLoaded[ID]) { | |||
8306 | GlobalMacroMapType::iterator I | |||
8307 | = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS); | |||
8308 | assert(I != GlobalMacroMap.end() && "Corrupted global macro map")(static_cast <bool> (I != GlobalMacroMap.end() && "Corrupted global macro map") ? void (0) : __assert_fail ("I != GlobalMacroMap.end() && \"Corrupted global macro map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8308, __extension__ __PRETTY_FUNCTION__)); | |||
8309 | ModuleFile *M = I->second; | |||
8310 | unsigned Index = ID - M->BaseMacroID; | |||
8311 | MacrosLoaded[ID] = ReadMacroRecord(*M, M->MacroOffsets[Index]); | |||
8312 | ||||
8313 | if (DeserializationListener) | |||
8314 | DeserializationListener->MacroRead(ID + NUM_PREDEF_MACRO_IDS, | |||
8315 | MacrosLoaded[ID]); | |||
8316 | } | |||
8317 | ||||
8318 | return MacrosLoaded[ID]; | |||
8319 | } | |||
8320 | ||||
8321 | MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) { | |||
8322 | if (LocalID < NUM_PREDEF_MACRO_IDS) | |||
8323 | return LocalID; | |||
8324 | ||||
8325 | if (!M.ModuleOffsetMap.empty()) | |||
8326 | ReadModuleOffsetMap(M); | |||
8327 | ||||
8328 | ContinuousRangeMap<uint32_t, int, 2>::iterator I | |||
8329 | = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS); | |||
8330 | assert(I != M.MacroRemap.end() && "Invalid index into macro index remap")(static_cast <bool> (I != M.MacroRemap.end() && "Invalid index into macro index remap") ? void (0) : __assert_fail ("I != M.MacroRemap.end() && \"Invalid index into macro index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8330, __extension__ __PRETTY_FUNCTION__)); | |||
8331 | ||||
8332 | return LocalID + I->second; | |||
8333 | } | |||
8334 | ||||
8335 | serialization::SubmoduleID | |||
8336 | ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) { | |||
8337 | if (LocalID < NUM_PREDEF_SUBMODULE_IDS) | |||
8338 | return LocalID; | |||
8339 | ||||
8340 | if (!M.ModuleOffsetMap.empty()) | |||
8341 | ReadModuleOffsetMap(M); | |||
8342 | ||||
8343 | ContinuousRangeMap<uint32_t, int, 2>::iterator I | |||
8344 | = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS); | |||
8345 | assert(I != M.SubmoduleRemap.end()(static_cast <bool> (I != M.SubmoduleRemap.end() && "Invalid index into submodule index remap") ? void (0) : __assert_fail ("I != M.SubmoduleRemap.end() && \"Invalid index into submodule index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8346, __extension__ __PRETTY_FUNCTION__)) | |||
8346 | && "Invalid index into submodule index remap")(static_cast <bool> (I != M.SubmoduleRemap.end() && "Invalid index into submodule index remap") ? void (0) : __assert_fail ("I != M.SubmoduleRemap.end() && \"Invalid index into submodule index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8346, __extension__ __PRETTY_FUNCTION__)); | |||
8347 | ||||
8348 | return LocalID + I->second; | |||
8349 | } | |||
8350 | ||||
8351 | Module *ASTReader::getSubmodule(SubmoduleID GlobalID) { | |||
8352 | if (GlobalID < NUM_PREDEF_SUBMODULE_IDS) { | |||
8353 | assert(GlobalID == 0 && "Unhandled global submodule ID")(static_cast <bool> (GlobalID == 0 && "Unhandled global submodule ID" ) ? void (0) : __assert_fail ("GlobalID == 0 && \"Unhandled global submodule ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8353, __extension__ __PRETTY_FUNCTION__)); | |||
8354 | return nullptr; | |||
8355 | } | |||
8356 | ||||
8357 | if (GlobalID > SubmodulesLoaded.size()) { | |||
8358 | Error("submodule ID out of range in AST file"); | |||
8359 | return nullptr; | |||
8360 | } | |||
8361 | ||||
8362 | return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS]; | |||
8363 | } | |||
8364 | ||||
8365 | Module *ASTReader::getModule(unsigned ID) { | |||
8366 | return getSubmodule(ID); | |||
8367 | } | |||
8368 | ||||
8369 | ModuleFile *ASTReader::getLocalModuleFile(ModuleFile &F, unsigned ID) { | |||
8370 | if (ID & 1) { | |||
8371 | // It's a module, look it up by submodule ID. | |||
8372 | auto I = GlobalSubmoduleMap.find(getGlobalSubmoduleID(F, ID >> 1)); | |||
8373 | return I == GlobalSubmoduleMap.end() ? nullptr : I->second; | |||
8374 | } else { | |||
8375 | // It's a prefix (preamble, PCH, ...). Look it up by index. | |||
8376 | unsigned IndexFromEnd = ID >> 1; | |||
8377 | assert(IndexFromEnd && "got reference to unknown module file")(static_cast <bool> (IndexFromEnd && "got reference to unknown module file" ) ? void (0) : __assert_fail ("IndexFromEnd && \"got reference to unknown module file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8377, __extension__ __PRETTY_FUNCTION__)); | |||
8378 | return getModuleManager().pch_modules().end()[-IndexFromEnd]; | |||
8379 | } | |||
8380 | } | |||
8381 | ||||
8382 | unsigned ASTReader::getModuleFileID(ModuleFile *F) { | |||
8383 | if (!F) | |||
8384 | return 1; | |||
8385 | ||||
8386 | // For a file representing a module, use the submodule ID of the top-level | |||
8387 | // module as the file ID. For any other kind of file, the number of such | |||
8388 | // files loaded beforehand will be the same on reload. | |||
8389 | // FIXME: Is this true even if we have an explicit module file and a PCH? | |||
8390 | if (F->isModule()) | |||
8391 | return ((F->BaseSubmoduleID + NUM_PREDEF_SUBMODULE_IDS) << 1) | 1; | |||
8392 | ||||
8393 | auto PCHModules = getModuleManager().pch_modules(); | |||
8394 | auto I = std::find(PCHModules.begin(), PCHModules.end(), F); | |||
8395 | assert(I != PCHModules.end() && "emitting reference to unknown file")(static_cast <bool> (I != PCHModules.end() && "emitting reference to unknown file" ) ? void (0) : __assert_fail ("I != PCHModules.end() && \"emitting reference to unknown file\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8395, __extension__ __PRETTY_FUNCTION__)); | |||
8396 | return (I - PCHModules.end()) << 1; | |||
8397 | } | |||
8398 | ||||
8399 | llvm::Optional<ExternalASTSource::ASTSourceDescriptor> | |||
8400 | ASTReader::getSourceDescriptor(unsigned ID) { | |||
8401 | if (const Module *M = getSubmodule(ID)) | |||
8402 | return ExternalASTSource::ASTSourceDescriptor(*M); | |||
8403 | ||||
8404 | // If there is only a single PCH, return it instead. | |||
8405 | // Chained PCH are not supported. | |||
8406 | const auto &PCHChain = ModuleMgr.pch_modules(); | |||
8407 | if (std::distance(std::begin(PCHChain), std::end(PCHChain))) { | |||
8408 | ModuleFile &MF = ModuleMgr.getPrimaryModule(); | |||
8409 | StringRef ModuleName = llvm::sys::path::filename(MF.OriginalSourceFileName); | |||
8410 | StringRef FileName = llvm::sys::path::filename(MF.FileName); | |||
8411 | return ASTReader::ASTSourceDescriptor(ModuleName, MF.OriginalDir, FileName, | |||
8412 | MF.Signature); | |||
8413 | } | |||
8414 | return None; | |||
8415 | } | |||
8416 | ||||
8417 | ExternalASTSource::ExtKind ASTReader::hasExternalDefinitions(const Decl *FD) { | |||
8418 | auto I = DefinitionSource.find(FD); | |||
8419 | if (I == DefinitionSource.end()) | |||
8420 | return EK_ReplyHazy; | |||
8421 | return I->second ? EK_Never : EK_Always; | |||
8422 | } | |||
8423 | ||||
8424 | Selector ASTReader::getLocalSelector(ModuleFile &M, unsigned LocalID) { | |||
8425 | return DecodeSelector(getGlobalSelectorID(M, LocalID)); | |||
8426 | } | |||
8427 | ||||
8428 | Selector ASTReader::DecodeSelector(serialization::SelectorID ID) { | |||
8429 | if (ID == 0) | |||
8430 | return Selector(); | |||
8431 | ||||
8432 | if (ID > SelectorsLoaded.size()) { | |||
8433 | Error("selector ID out of range in AST file"); | |||
8434 | return Selector(); | |||
8435 | } | |||
8436 | ||||
8437 | if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == nullptr) { | |||
8438 | // Load this selector from the selector table. | |||
8439 | GlobalSelectorMapType::iterator I = GlobalSelectorMap.find(ID); | |||
8440 | assert(I != GlobalSelectorMap.end() && "Corrupted global selector map")(static_cast <bool> (I != GlobalSelectorMap.end() && "Corrupted global selector map") ? void (0) : __assert_fail ( "I != GlobalSelectorMap.end() && \"Corrupted global selector map\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8440, __extension__ __PRETTY_FUNCTION__)); | |||
8441 | ModuleFile &M = *I->second; | |||
8442 | ASTSelectorLookupTrait Trait(*this, M); | |||
8443 | unsigned Idx = ID - M.BaseSelectorID - NUM_PREDEF_SELECTOR_IDS; | |||
8444 | SelectorsLoaded[ID - 1] = | |||
8445 | Trait.ReadKey(M.SelectorLookupTableData + M.SelectorOffsets[Idx], 0); | |||
8446 | if (DeserializationListener) | |||
8447 | DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]); | |||
8448 | } | |||
8449 | ||||
8450 | return SelectorsLoaded[ID - 1]; | |||
8451 | } | |||
8452 | ||||
8453 | Selector ASTReader::GetExternalSelector(serialization::SelectorID ID) { | |||
8454 | return DecodeSelector(ID); | |||
8455 | } | |||
8456 | ||||
8457 | uint32_t ASTReader::GetNumExternalSelectors() { | |||
8458 | // ID 0 (the null selector) is considered an external selector. | |||
8459 | return getTotalNumSelectors() + 1; | |||
8460 | } | |||
8461 | ||||
8462 | serialization::SelectorID | |||
8463 | ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const { | |||
8464 | if (LocalID < NUM_PREDEF_SELECTOR_IDS) | |||
8465 | return LocalID; | |||
8466 | ||||
8467 | if (!M.ModuleOffsetMap.empty()) | |||
8468 | ReadModuleOffsetMap(M); | |||
8469 | ||||
8470 | ContinuousRangeMap<uint32_t, int, 2>::iterator I | |||
8471 | = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS); | |||
8472 | assert(I != M.SelectorRemap.end()(static_cast <bool> (I != M.SelectorRemap.end() && "Invalid index into selector index remap") ? void (0) : __assert_fail ("I != M.SelectorRemap.end() && \"Invalid index into selector index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8473, __extension__ __PRETTY_FUNCTION__)) | |||
8473 | && "Invalid index into selector index remap")(static_cast <bool> (I != M.SelectorRemap.end() && "Invalid index into selector index remap") ? void (0) : __assert_fail ("I != M.SelectorRemap.end() && \"Invalid index into selector index remap\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8473, __extension__ __PRETTY_FUNCTION__)); | |||
8474 | ||||
8475 | return LocalID + I->second; | |||
8476 | } | |||
8477 | ||||
8478 | DeclarationName | |||
8479 | ASTReader::ReadDeclarationName(ModuleFile &F, | |||
8480 | const RecordData &Record, unsigned &Idx) { | |||
8481 | ASTContext &Context = getContext(); | |||
8482 | DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++]; | |||
8483 | switch (Kind) { | |||
8484 | case DeclarationName::Identifier: | |||
8485 | return DeclarationName(GetIdentifierInfo(F, Record, Idx)); | |||
8486 | ||||
8487 | case DeclarationName::ObjCZeroArgSelector: | |||
8488 | case DeclarationName::ObjCOneArgSelector: | |||
8489 | case DeclarationName::ObjCMultiArgSelector: | |||
8490 | return DeclarationName(ReadSelector(F, Record, Idx)); | |||
8491 | ||||
8492 | case DeclarationName::CXXConstructorName: | |||
8493 | return Context.DeclarationNames.getCXXConstructorName( | |||
8494 | Context.getCanonicalType(readType(F, Record, Idx))); | |||
8495 | ||||
8496 | case DeclarationName::CXXDestructorName: | |||
8497 | return Context.DeclarationNames.getCXXDestructorName( | |||
8498 | Context.getCanonicalType(readType(F, Record, Idx))); | |||
8499 | ||||
8500 | case DeclarationName::CXXDeductionGuideName: | |||
8501 | return Context.DeclarationNames.getCXXDeductionGuideName( | |||
8502 | ReadDeclAs<TemplateDecl>(F, Record, Idx)); | |||
8503 | ||||
8504 | case DeclarationName::CXXConversionFunctionName: | |||
8505 | return Context.DeclarationNames.getCXXConversionFunctionName( | |||
8506 | Context.getCanonicalType(readType(F, Record, Idx))); | |||
8507 | ||||
8508 | case DeclarationName::CXXOperatorName: | |||
8509 | return Context.DeclarationNames.getCXXOperatorName( | |||
8510 | (OverloadedOperatorKind)Record[Idx++]); | |||
8511 | ||||
8512 | case DeclarationName::CXXLiteralOperatorName: | |||
8513 | return Context.DeclarationNames.getCXXLiteralOperatorName( | |||
8514 | GetIdentifierInfo(F, Record, Idx)); | |||
8515 | ||||
8516 | case DeclarationName::CXXUsingDirective: | |||
8517 | return DeclarationName::getUsingDirectiveName(); | |||
8518 | } | |||
8519 | ||||
8520 | llvm_unreachable("Invalid NameKind!")::llvm::llvm_unreachable_internal("Invalid NameKind!", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8520); | |||
8521 | } | |||
8522 | ||||
8523 | void ASTReader::ReadDeclarationNameLoc(ModuleFile &F, | |||
8524 | DeclarationNameLoc &DNLoc, | |||
8525 | DeclarationName Name, | |||
8526 | const RecordData &Record, unsigned &Idx) { | |||
8527 | switch (Name.getNameKind()) { | |||
8528 | case DeclarationName::CXXConstructorName: | |||
8529 | case DeclarationName::CXXDestructorName: | |||
8530 | case DeclarationName::CXXConversionFunctionName: | |||
8531 | DNLoc.NamedType.TInfo = GetTypeSourceInfo(F, Record, Idx); | |||
8532 | break; | |||
8533 | ||||
8534 | case DeclarationName::CXXOperatorName: | |||
8535 | DNLoc.CXXOperatorName.BeginOpNameLoc | |||
8536 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); | |||
8537 | DNLoc.CXXOperatorName.EndOpNameLoc | |||
8538 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); | |||
8539 | break; | |||
8540 | ||||
8541 | case DeclarationName::CXXLiteralOperatorName: | |||
8542 | DNLoc.CXXLiteralOperatorName.OpNameLoc | |||
8543 | = ReadSourceLocation(F, Record, Idx).getRawEncoding(); | |||
8544 | break; | |||
8545 | ||||
8546 | case DeclarationName::Identifier: | |||
8547 | case DeclarationName::ObjCZeroArgSelector: | |||
8548 | case DeclarationName::ObjCOneArgSelector: | |||
8549 | case DeclarationName::ObjCMultiArgSelector: | |||
8550 | case DeclarationName::CXXUsingDirective: | |||
8551 | case DeclarationName::CXXDeductionGuideName: | |||
8552 | break; | |||
8553 | } | |||
8554 | } | |||
8555 | ||||
8556 | void ASTReader::ReadDeclarationNameInfo(ModuleFile &F, | |||
8557 | DeclarationNameInfo &NameInfo, | |||
8558 | const RecordData &Record, unsigned &Idx) { | |||
8559 | NameInfo.setName(ReadDeclarationName(F, Record, Idx)); | |||
8560 | NameInfo.setLoc(ReadSourceLocation(F, Record, Idx)); | |||
8561 | DeclarationNameLoc DNLoc; | |||
8562 | ReadDeclarationNameLoc(F, DNLoc, NameInfo.getName(), Record, Idx); | |||
8563 | NameInfo.setInfo(DNLoc); | |||
8564 | } | |||
8565 | ||||
8566 | void ASTReader::ReadQualifierInfo(ModuleFile &F, QualifierInfo &Info, | |||
8567 | const RecordData &Record, unsigned &Idx) { | |||
8568 | Info.QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx); | |||
8569 | unsigned NumTPLists = Record[Idx++]; | |||
8570 | Info.NumTemplParamLists = NumTPLists; | |||
8571 | if (NumTPLists) { | |||
8572 | Info.TemplParamLists = | |||
8573 | new (getContext()) TemplateParameterList *[NumTPLists]; | |||
8574 | for (unsigned i = 0; i != NumTPLists; ++i) | |||
8575 | Info.TemplParamLists[i] = ReadTemplateParameterList(F, Record, Idx); | |||
8576 | } | |||
8577 | } | |||
8578 | ||||
8579 | TemplateName | |||
8580 | ASTReader::ReadTemplateName(ModuleFile &F, const RecordData &Record, | |||
8581 | unsigned &Idx) { | |||
8582 | ASTContext &Context = getContext(); | |||
8583 | TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++]; | |||
8584 | switch (Kind) { | |||
8585 | case TemplateName::Template: | |||
8586 | return TemplateName(ReadDeclAs<TemplateDecl>(F, Record, Idx)); | |||
8587 | ||||
8588 | case TemplateName::OverloadedTemplate: { | |||
8589 | unsigned size = Record[Idx++]; | |||
8590 | UnresolvedSet<8> Decls; | |||
8591 | while (size--) | |||
8592 | Decls.addDecl(ReadDeclAs<NamedDecl>(F, Record, Idx)); | |||
8593 | ||||
8594 | return Context.getOverloadedTemplateName(Decls.begin(), Decls.end()); | |||
8595 | } | |||
8596 | ||||
8597 | case TemplateName::QualifiedTemplate: { | |||
8598 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx); | |||
8599 | bool hasTemplKeyword = Record[Idx++]; | |||
8600 | TemplateDecl *Template = ReadDeclAs<TemplateDecl>(F, Record, Idx); | |||
8601 | return Context.getQualifiedTemplateName(NNS, hasTemplKeyword, Template); | |||
8602 | } | |||
8603 | ||||
8604 | case TemplateName::DependentTemplate: { | |||
8605 | NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx); | |||
8606 | if (Record[Idx++]) // isIdentifier | |||
8607 | return Context.getDependentTemplateName(NNS, | |||
8608 | GetIdentifierInfo(F, Record, | |||
8609 | Idx)); | |||
8610 | return Context.getDependentTemplateName(NNS, | |||
8611 | (OverloadedOperatorKind)Record[Idx++]); | |||
8612 | } | |||
8613 | ||||
8614 | case TemplateName::SubstTemplateTemplateParm: { | |||
8615 | TemplateTemplateParmDecl *param | |||
8616 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx); | |||
8617 | if (!param) return TemplateName(); | |||
8618 | TemplateName replacement = ReadTemplateName(F, Record, Idx); | |||
8619 | return Context.getSubstTemplateTemplateParm(param, replacement); | |||
8620 | } | |||
8621 | ||||
8622 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
8623 | TemplateTemplateParmDecl *Param | |||
8624 | = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx); | |||
8625 | if (!Param) | |||
8626 | return TemplateName(); | |||
8627 | ||||
8628 | TemplateArgument ArgPack = ReadTemplateArgument(F, Record, Idx); | |||
8629 | if (ArgPack.getKind() != TemplateArgument::Pack) | |||
8630 | return TemplateName(); | |||
8631 | ||||
8632 | return Context.getSubstTemplateTemplateParmPack(Param, ArgPack); | |||
8633 | } | |||
8634 | } | |||
8635 | ||||
8636 | llvm_unreachable("Unhandled template name kind!")::llvm::llvm_unreachable_internal("Unhandled template name kind!" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8636); | |||
8637 | } | |||
8638 | ||||
8639 | TemplateArgument ASTReader::ReadTemplateArgument(ModuleFile &F, | |||
8640 | const RecordData &Record, | |||
8641 | unsigned &Idx, | |||
8642 | bool Canonicalize) { | |||
8643 | ASTContext &Context = getContext(); | |||
8644 | if (Canonicalize) { | |||
8645 | // The caller wants a canonical template argument. Sometimes the AST only | |||
8646 | // wants template arguments in canonical form (particularly as the template | |||
8647 | // argument lists of template specializations) so ensure we preserve that | |||
8648 | // canonical form across serialization. | |||
8649 | TemplateArgument Arg = ReadTemplateArgument(F, Record, Idx, false); | |||
8650 | return Context.getCanonicalTemplateArgument(Arg); | |||
8651 | } | |||
8652 | ||||
8653 | TemplateArgument::ArgKind Kind = (TemplateArgument::ArgKind)Record[Idx++]; | |||
8654 | switch (Kind) { | |||
8655 | case TemplateArgument::Null: | |||
8656 | return TemplateArgument(); | |||
8657 | case TemplateArgument::Type: | |||
8658 | return TemplateArgument(readType(F, Record, Idx)); | |||
8659 | case TemplateArgument::Declaration: { | |||
8660 | ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx); | |||
8661 | return TemplateArgument(D, readType(F, Record, Idx)); | |||
8662 | } | |||
8663 | case TemplateArgument::NullPtr: | |||
8664 | return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true); | |||
8665 | case TemplateArgument::Integral: { | |||
8666 | llvm::APSInt Value = ReadAPSInt(Record, Idx); | |||
8667 | QualType T = readType(F, Record, Idx); | |||
8668 | return TemplateArgument(Context, Value, T); | |||
8669 | } | |||
8670 | case TemplateArgument::Template: | |||
8671 | return TemplateArgument(ReadTemplateName(F, Record, Idx)); | |||
8672 | case TemplateArgument::TemplateExpansion: { | |||
8673 | TemplateName Name = ReadTemplateName(F, Record, Idx); | |||
8674 | Optional<unsigned> NumTemplateExpansions; | |||
8675 | if (unsigned NumExpansions = Record[Idx++]) | |||
8676 | NumTemplateExpansions = NumExpansions - 1; | |||
8677 | return TemplateArgument(Name, NumTemplateExpansions); | |||
8678 | } | |||
8679 | case TemplateArgument::Expression: | |||
8680 | return TemplateArgument(ReadExpr(F)); | |||
8681 | case TemplateArgument::Pack: { | |||
8682 | unsigned NumArgs = Record[Idx++]; | |||
8683 | TemplateArgument *Args = new (Context) TemplateArgument[NumArgs]; | |||
8684 | for (unsigned I = 0; I != NumArgs; ++I) | |||
8685 | Args[I] = ReadTemplateArgument(F, Record, Idx); | |||
8686 | return TemplateArgument(llvm::makeArrayRef(Args, NumArgs)); | |||
8687 | } | |||
8688 | } | |||
8689 | ||||
8690 | llvm_unreachable("Unhandled template argument kind!")::llvm::llvm_unreachable_internal("Unhandled template argument kind!" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8690); | |||
8691 | } | |||
8692 | ||||
8693 | TemplateParameterList * | |||
8694 | ASTReader::ReadTemplateParameterList(ModuleFile &F, | |||
8695 | const RecordData &Record, unsigned &Idx) { | |||
8696 | SourceLocation TemplateLoc = ReadSourceLocation(F, Record, Idx); | |||
8697 | SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Idx); | |||
8698 | SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Idx); | |||
8699 | ||||
8700 | unsigned NumParams = Record[Idx++]; | |||
8701 | SmallVector<NamedDecl *, 16> Params; | |||
8702 | Params.reserve(NumParams); | |||
8703 | while (NumParams--) | |||
8704 | Params.push_back(ReadDeclAs<NamedDecl>(F, Record, Idx)); | |||
8705 | ||||
8706 | // TODO: Concepts | |||
8707 | TemplateParameterList *TemplateParams = TemplateParameterList::Create( | |||
8708 | getContext(), TemplateLoc, LAngleLoc, Params, RAngleLoc, nullptr); | |||
8709 | return TemplateParams; | |||
8710 | } | |||
8711 | ||||
8712 | void | |||
8713 | ASTReader:: | |||
8714 | ReadTemplateArgumentList(SmallVectorImpl<TemplateArgument> &TemplArgs, | |||
8715 | ModuleFile &F, const RecordData &Record, | |||
8716 | unsigned &Idx, bool Canonicalize) { | |||
8717 | unsigned NumTemplateArgs = Record[Idx++]; | |||
8718 | TemplArgs.reserve(NumTemplateArgs); | |||
8719 | while (NumTemplateArgs--) | |||
8720 | TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx, Canonicalize)); | |||
8721 | } | |||
8722 | ||||
8723 | /// \brief Read a UnresolvedSet structure. | |||
8724 | void ASTReader::ReadUnresolvedSet(ModuleFile &F, LazyASTUnresolvedSet &Set, | |||
8725 | const RecordData &Record, unsigned &Idx) { | |||
8726 | unsigned NumDecls = Record[Idx++]; | |||
8727 | Set.reserve(getContext(), NumDecls); | |||
8728 | while (NumDecls--) { | |||
8729 | DeclID ID = ReadDeclID(F, Record, Idx); | |||
8730 | AccessSpecifier AS = (AccessSpecifier)Record[Idx++]; | |||
8731 | Set.addLazyDecl(getContext(), ID, AS); | |||
8732 | } | |||
8733 | } | |||
8734 | ||||
8735 | CXXBaseSpecifier | |||
8736 | ASTReader::ReadCXXBaseSpecifier(ModuleFile &F, | |||
8737 | const RecordData &Record, unsigned &Idx) { | |||
8738 | bool isVirtual = static_cast<bool>(Record[Idx++]); | |||
8739 | bool isBaseOfClass = static_cast<bool>(Record[Idx++]); | |||
8740 | AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]); | |||
8741 | bool inheritConstructors = static_cast<bool>(Record[Idx++]); | |||
8742 | TypeSourceInfo *TInfo = GetTypeSourceInfo(F, Record, Idx); | |||
8743 | SourceRange Range = ReadSourceRange(F, Record, Idx); | |||
8744 | SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Idx); | |||
8745 | CXXBaseSpecifier Result(Range, isVirtual, isBaseOfClass, AS, TInfo, | |||
8746 | EllipsisLoc); | |||
8747 | Result.setInheritConstructors(inheritConstructors); | |||
8748 | return Result; | |||
8749 | } | |||
8750 | ||||
8751 | CXXCtorInitializer ** | |||
8752 | ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record, | |||
8753 | unsigned &Idx) { | |||
8754 | ASTContext &Context = getContext(); | |||
8755 | unsigned NumInitializers = Record[Idx++]; | |||
8756 | assert(NumInitializers && "wrote ctor initializers but have no inits")(static_cast <bool> (NumInitializers && "wrote ctor initializers but have no inits" ) ? void (0) : __assert_fail ("NumInitializers && \"wrote ctor initializers but have no inits\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 8756, __extension__ __PRETTY_FUNCTION__)); | |||
8757 | auto **CtorInitializers = new (Context) CXXCtorInitializer*[NumInitializers]; | |||
8758 | for (unsigned i = 0; i != NumInitializers; ++i) { | |||
8759 | TypeSourceInfo *TInfo = nullptr; | |||
8760 | bool IsBaseVirtual = false; | |||
8761 | FieldDecl *Member = nullptr; | |||
8762 | IndirectFieldDecl *IndirectMember = nullptr; | |||
8763 | ||||
8764 | CtorInitializerType Type = (CtorInitializerType)Record[Idx++]; | |||
8765 | switch (Type) { | |||
8766 | case CTOR_INITIALIZER_BASE: | |||
8767 | TInfo = GetTypeSourceInfo(F, Record, Idx); | |||
8768 | IsBaseVirtual = Record[Idx++]; | |||
8769 | break; | |||
8770 | ||||
8771 | case CTOR_INITIALIZER_DELEGATING: | |||
8772 | TInfo = GetTypeSourceInfo(F, Record, Idx); | |||
8773 | break; | |||
8774 | ||||
8775 | case CTOR_INITIALIZER_MEMBER: | |||
8776 | Member = ReadDeclAs<FieldDecl>(F, Record, Idx); | |||
8777 | break; | |||
8778 | ||||
8779 | case CTOR_INITIALIZER_INDIRECT_MEMBER: | |||
8780 | IndirectMember = ReadDeclAs<IndirectFieldDecl>(F, Record, Idx); | |||
8781 | break; | |||
8782 | } | |||
8783 | ||||
8784 | SourceLocation MemberOrEllipsisLoc = ReadSourceLocation(F, Record, Idx); | |||
8785 | Expr *Init = ReadExpr(F); | |||
8786 | SourceLocation LParenLoc = ReadSourceLocation(F, Record, Idx); | |||
8787 | SourceLocation RParenLoc = ReadSourceLocation(F, Record, Idx); | |||
8788 | ||||
8789 | CXXCtorInitializer *BOMInit; | |||
8790 | if (Type == CTOR_INITIALIZER_BASE) | |||
8791 | BOMInit = new (Context) | |||
8792 | CXXCtorInitializer(Context, TInfo, IsBaseVirtual, LParenLoc, Init, | |||
8793 | RParenLoc, MemberOrEllipsisLoc); | |||
8794 | else if (Type == CTOR_INITIALIZER_DELEGATING) | |||
8795 | BOMInit = new (Context) | |||
8796 | CXXCtorInitializer(Context, TInfo, LParenLoc, Init, RParenLoc); | |||
8797 | else if (Member) | |||
8798 | BOMInit = new (Context) | |||
8799 | CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc, LParenLoc, | |||
8800 | Init, RParenLoc); | |||
8801 | else | |||
8802 | BOMInit = new (Context) | |||
8803 | CXXCtorInitializer(Context, IndirectMember, MemberOrEllipsisLoc, | |||
8804 | LParenLoc, Init, RParenLoc); | |||
8805 | ||||
8806 | if (/*IsWritten*/Record[Idx++]) { | |||
8807 | unsigned SourceOrder = Record[Idx++]; | |||
8808 | BOMInit->setSourceOrder(SourceOrder); | |||
8809 | } | |||
8810 | ||||
8811 | CtorInitializers[i] = BOMInit; | |||
8812 | } | |||
8813 | ||||
8814 | return CtorInitializers; | |||
8815 | } | |||
8816 | ||||
8817 | NestedNameSpecifier * | |||
8818 | ASTReader::ReadNestedNameSpecifier(ModuleFile &F, | |||
8819 | const RecordData &Record, unsigned &Idx) { | |||
8820 | ASTContext &Context = getContext(); | |||
8821 | unsigned N = Record[Idx++]; | |||
8822 | NestedNameSpecifier *NNS = nullptr, *Prev = nullptr; | |||
8823 | for (unsigned I = 0; I != N; ++I) { | |||
8824 | NestedNameSpecifier::SpecifierKind Kind | |||
8825 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++]; | |||
8826 | switch (Kind) { | |||
8827 | case NestedNameSpecifier::Identifier: { | |||
8828 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx); | |||
8829 | NNS = NestedNameSpecifier::Create(Context, Prev, II); | |||
8830 | break; | |||
8831 | } | |||
8832 | ||||
8833 | case NestedNameSpecifier::Namespace: { | |||
8834 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx); | |||
8835 | NNS = NestedNameSpecifier::Create(Context, Prev, NS); | |||
8836 | break; | |||
8837 | } | |||
8838 | ||||
8839 | case NestedNameSpecifier::NamespaceAlias: { | |||
8840 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx); | |||
8841 | NNS = NestedNameSpecifier::Create(Context, Prev, Alias); | |||
8842 | break; | |||
8843 | } | |||
8844 | ||||
8845 | case NestedNameSpecifier::TypeSpec: | |||
8846 | case NestedNameSpecifier::TypeSpecWithTemplate: { | |||
8847 | const Type *T = readType(F, Record, Idx).getTypePtrOrNull(); | |||
8848 | if (!T) | |||
8849 | return nullptr; | |||
8850 | ||||
8851 | bool Template = Record[Idx++]; | |||
8852 | NNS = NestedNameSpecifier::Create(Context, Prev, Template, T); | |||
8853 | break; | |||
8854 | } | |||
8855 | ||||
8856 | case NestedNameSpecifier::Global: | |||
8857 | NNS = NestedNameSpecifier::GlobalSpecifier(Context); | |||
8858 | // No associated value, and there can't be a prefix. | |||
8859 | break; | |||
8860 | ||||
8861 | case NestedNameSpecifier::Super: { | |||
8862 | CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(F, Record, Idx); | |||
8863 | NNS = NestedNameSpecifier::SuperSpecifier(Context, RD); | |||
8864 | break; | |||
8865 | } | |||
8866 | } | |||
8867 | Prev = NNS; | |||
8868 | } | |||
8869 | return NNS; | |||
8870 | } | |||
8871 | ||||
8872 | NestedNameSpecifierLoc | |||
8873 | ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record, | |||
8874 | unsigned &Idx) { | |||
8875 | ASTContext &Context = getContext(); | |||
8876 | unsigned N = Record[Idx++]; | |||
8877 | NestedNameSpecifierLocBuilder Builder; | |||
8878 | for (unsigned I = 0; I != N; ++I) { | |||
8879 | NestedNameSpecifier::SpecifierKind Kind | |||
8880 | = (NestedNameSpecifier::SpecifierKind)Record[Idx++]; | |||
8881 | switch (Kind) { | |||
8882 | case NestedNameSpecifier::Identifier: { | |||
8883 | IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx); | |||
8884 | SourceRange Range = ReadSourceRange(F, Record, Idx); | |||
8885 | Builder.Extend(Context, II, Range.getBegin(), Range.getEnd()); | |||
8886 | break; | |||
8887 | } | |||
8888 | ||||
8889 | case NestedNameSpecifier::Namespace: { | |||
8890 | NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx); | |||
8891 | SourceRange Range = ReadSourceRange(F, Record, Idx); | |||
8892 | Builder.Extend(Context, NS, Range.getBegin(), Range.getEnd()); | |||
8893 | break; | |||
8894 | } | |||
8895 | ||||
8896 | case NestedNameSpecifier::NamespaceAlias: { | |||
8897 | NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx); | |||
8898 | SourceRange Range = ReadSourceRange(F, Record, Idx); | |||
8899 | Builder.Extend(Context, Alias, Range.getBegin(), Range.getEnd()); | |||
8900 | break; | |||
8901 | } | |||
8902 | ||||
8903 | case NestedNameSpecifier::TypeSpec: | |||
8904 | case NestedNameSpecifier::TypeSpecWithTemplate: { | |||
8905 | bool Template = Record[Idx++]; | |||
8906 | TypeSourceInfo *T = GetTypeSourceInfo(F, Record, Idx); | |||
8907 | if (!T) | |||
8908 | return NestedNameSpecifierLoc(); | |||
8909 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx); | |||
8910 | ||||
8911 | // FIXME: 'template' keyword location not saved anywhere, so we fake it. | |||
8912 | Builder.Extend(Context, | |||
8913 | Template? T->getTypeLoc().getBeginLoc() : SourceLocation(), | |||
8914 | T->getTypeLoc(), ColonColonLoc); | |||
8915 | break; | |||
8916 | } | |||
8917 | ||||
8918 | case NestedNameSpecifier::Global: { | |||
8919 | SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx); | |||
8920 | Builder.MakeGlobal(Context, ColonColonLoc); | |||
8921 | break; | |||
8922 | } | |||
8923 | ||||
8924 | case NestedNameSpecifier::Super: { | |||
8925 | CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(F, Record, Idx); | |||
8926 | SourceRange Range = ReadSourceRange(F, Record, Idx); | |||
8927 | Builder.MakeSuper(Context, RD, Range.getBegin(), Range.getEnd()); | |||
8928 | break; | |||
8929 | } | |||
8930 | } | |||
8931 | } | |||
8932 | ||||
8933 | return Builder.getWithLocInContext(Context); | |||
8934 | } | |||
8935 | ||||
8936 | SourceRange | |||
8937 | ASTReader::ReadSourceRange(ModuleFile &F, const RecordData &Record, | |||
8938 | unsigned &Idx) { | |||
8939 | SourceLocation beg = ReadSourceLocation(F, Record, Idx); | |||
8940 | SourceLocation end = ReadSourceLocation(F, Record, Idx); | |||
8941 | return SourceRange(beg, end); | |||
8942 | } | |||
8943 | ||||
8944 | /// \brief Read an integral value | |||
8945 | llvm::APInt ASTReader::ReadAPInt(const RecordData &Record, unsigned &Idx) { | |||
8946 | unsigned BitWidth = Record[Idx++]; | |||
8947 | unsigned NumWords = llvm::APInt::getNumWords(BitWidth); | |||
8948 | llvm::APInt Result(BitWidth, NumWords, &Record[Idx]); | |||
8949 | Idx += NumWords; | |||
8950 | return Result; | |||
8951 | } | |||
8952 | ||||
8953 | /// \brief Read a signed integral value | |||
8954 | llvm::APSInt ASTReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) { | |||
8955 | bool isUnsigned = Record[Idx++]; | |||
8956 | return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned); | |||
8957 | } | |||
8958 | ||||
8959 | /// \brief Read a floating-point value | |||
8960 | llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, | |||
8961 | const llvm::fltSemantics &Sem, | |||
8962 | unsigned &Idx) { | |||
8963 | return llvm::APFloat(Sem, ReadAPInt(Record, Idx)); | |||
8964 | } | |||
8965 | ||||
8966 | // \brief Read a string | |||
8967 | std::string ASTReader::ReadString(const RecordData &Record, unsigned &Idx) { | |||
8968 | unsigned Len = Record[Idx++]; | |||
8969 | std::string Result(Record.data() + Idx, Record.data() + Idx + Len); | |||
8970 | Idx += Len; | |||
8971 | return Result; | |||
8972 | } | |||
8973 | ||||
8974 | std::string ASTReader::ReadPath(ModuleFile &F, const RecordData &Record, | |||
8975 | unsigned &Idx) { | |||
8976 | std::string Filename = ReadString(Record, Idx); | |||
8977 | ResolveImportedPath(F, Filename); | |||
8978 | return Filename; | |||
8979 | } | |||
8980 | ||||
8981 | VersionTuple ASTReader::ReadVersionTuple(const RecordData &Record, | |||
8982 | unsigned &Idx) { | |||
8983 | unsigned Major = Record[Idx++]; | |||
8984 | unsigned Minor = Record[Idx++]; | |||
8985 | unsigned Subminor = Record[Idx++]; | |||
8986 | if (Minor == 0) | |||
8987 | return VersionTuple(Major); | |||
8988 | if (Subminor == 0) | |||
8989 | return VersionTuple(Major, Minor - 1); | |||
8990 | return VersionTuple(Major, Minor - 1, Subminor - 1); | |||
8991 | } | |||
8992 | ||||
8993 | CXXTemporary *ASTReader::ReadCXXTemporary(ModuleFile &F, | |||
8994 | const RecordData &Record, | |||
8995 | unsigned &Idx) { | |||
8996 | CXXDestructorDecl *Decl = ReadDeclAs<CXXDestructorDecl>(F, Record, Idx); | |||
8997 | return CXXTemporary::Create(getContext(), Decl); | |||
8998 | } | |||
8999 | ||||
9000 | DiagnosticBuilder ASTReader::Diag(unsigned DiagID) const { | |||
9001 | return Diag(CurrentImportLoc, DiagID); | |||
9002 | } | |||
9003 | ||||
9004 | DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) const { | |||
9005 | return Diags.Report(Loc, DiagID); | |||
9006 | } | |||
9007 | ||||
9008 | /// \brief Retrieve the identifier table associated with the | |||
9009 | /// preprocessor. | |||
9010 | IdentifierTable &ASTReader::getIdentifierTable() { | |||
9011 | return PP.getIdentifierTable(); | |||
9012 | } | |||
9013 | ||||
9014 | /// \brief Record that the given ID maps to the given switch-case | |||
9015 | /// statement. | |||
9016 | void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) { | |||
9017 | assert((*CurrSwitchCaseStmts)[ID] == nullptr &&(static_cast <bool> ((*CurrSwitchCaseStmts)[ID] == nullptr && "Already have a SwitchCase with this ID") ? void ( 0) : __assert_fail ("(*CurrSwitchCaseStmts)[ID] == nullptr && \"Already have a SwitchCase with this ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9018, __extension__ __PRETTY_FUNCTION__)) | |||
9018 | "Already have a SwitchCase with this ID")(static_cast <bool> ((*CurrSwitchCaseStmts)[ID] == nullptr && "Already have a SwitchCase with this ID") ? void ( 0) : __assert_fail ("(*CurrSwitchCaseStmts)[ID] == nullptr && \"Already have a SwitchCase with this ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9018, __extension__ __PRETTY_FUNCTION__)); | |||
9019 | (*CurrSwitchCaseStmts)[ID] = SC; | |||
9020 | } | |||
9021 | ||||
9022 | /// \brief Retrieve the switch-case statement with the given ID. | |||
9023 | SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) { | |||
9024 | assert((*CurrSwitchCaseStmts)[ID] != nullptr && "No SwitchCase with this ID")(static_cast <bool> ((*CurrSwitchCaseStmts)[ID] != nullptr && "No SwitchCase with this ID") ? void (0) : __assert_fail ("(*CurrSwitchCaseStmts)[ID] != nullptr && \"No SwitchCase with this ID\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9024, __extension__ __PRETTY_FUNCTION__)); | |||
9025 | return (*CurrSwitchCaseStmts)[ID]; | |||
9026 | } | |||
9027 | ||||
9028 | void ASTReader::ClearSwitchCaseIDs() { | |||
9029 | CurrSwitchCaseStmts->clear(); | |||
9030 | } | |||
9031 | ||||
9032 | void ASTReader::ReadComments() { | |||
9033 | ASTContext &Context = getContext(); | |||
9034 | std::vector<RawComment *> Comments; | |||
9035 | for (SmallVectorImpl<std::pair<BitstreamCursor, | |||
9036 | serialization::ModuleFile *>>::iterator | |||
9037 | I = CommentsCursors.begin(), | |||
9038 | E = CommentsCursors.end(); | |||
9039 | I != E; ++I) { | |||
9040 | Comments.clear(); | |||
9041 | BitstreamCursor &Cursor = I->first; | |||
9042 | serialization::ModuleFile &F = *I->second; | |||
9043 | SavedStreamPosition SavedPosition(Cursor); | |||
9044 | ||||
9045 | RecordData Record; | |||
9046 | while (true) { | |||
9047 | llvm::BitstreamEntry Entry = | |||
9048 | Cursor.advanceSkippingSubblocks(BitstreamCursor::AF_DontPopBlockAtEnd); | |||
9049 | ||||
9050 | switch (Entry.Kind) { | |||
9051 | case llvm::BitstreamEntry::SubBlock: // Handled for us already. | |||
9052 | case llvm::BitstreamEntry::Error: | |||
9053 | Error("malformed block record in AST file"); | |||
9054 | return; | |||
9055 | case llvm::BitstreamEntry::EndBlock: | |||
9056 | goto NextCursor; | |||
9057 | case llvm::BitstreamEntry::Record: | |||
9058 | // The interesting case. | |||
9059 | break; | |||
9060 | } | |||
9061 | ||||
9062 | // Read a record. | |||
9063 | Record.clear(); | |||
9064 | switch ((CommentRecordTypes)Cursor.readRecord(Entry.ID, Record)) { | |||
9065 | case COMMENTS_RAW_COMMENT: { | |||
9066 | unsigned Idx = 0; | |||
9067 | SourceRange SR = ReadSourceRange(F, Record, Idx); | |||
9068 | RawComment::CommentKind Kind = | |||
9069 | (RawComment::CommentKind) Record[Idx++]; | |||
9070 | bool IsTrailingComment = Record[Idx++]; | |||
9071 | bool IsAlmostTrailingComment = Record[Idx++]; | |||
9072 | Comments.push_back(new (Context) RawComment( | |||
9073 | SR, Kind, IsTrailingComment, IsAlmostTrailingComment)); | |||
9074 | break; | |||
9075 | } | |||
9076 | } | |||
9077 | } | |||
9078 | NextCursor: | |||
9079 | // De-serialized SourceLocations get negative FileIDs for other modules, | |||
9080 | // potentially invalidating the original order. Sort it again. | |||
9081 | llvm::sort(Comments.begin(), Comments.end(), | |||
9082 | BeforeThanCompare<RawComment>(SourceMgr)); | |||
9083 | Context.Comments.addDeserializedComments(Comments); | |||
9084 | } | |||
9085 | } | |||
9086 | ||||
9087 | void ASTReader::visitInputFiles(serialization::ModuleFile &MF, | |||
9088 | bool IncludeSystem, bool Complain, | |||
9089 | llvm::function_ref<void(const serialization::InputFile &IF, | |||
9090 | bool isSystem)> Visitor) { | |||
9091 | unsigned NumUserInputs = MF.NumUserInputFiles; | |||
9092 | unsigned NumInputs = MF.InputFilesLoaded.size(); | |||
9093 | assert(NumUserInputs <= NumInputs)(static_cast <bool> (NumUserInputs <= NumInputs) ? void (0) : __assert_fail ("NumUserInputs <= NumInputs", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9093, __extension__ __PRETTY_FUNCTION__)); | |||
9094 | unsigned N = IncludeSystem ? NumInputs : NumUserInputs; | |||
9095 | for (unsigned I = 0; I < N; ++I) { | |||
9096 | bool IsSystem = I >= NumUserInputs; | |||
9097 | InputFile IF = getInputFile(MF, I+1, Complain); | |||
9098 | Visitor(IF, IsSystem); | |||
9099 | } | |||
9100 | } | |||
9101 | ||||
9102 | void ASTReader::visitTopLevelModuleMaps( | |||
9103 | serialization::ModuleFile &MF, | |||
9104 | llvm::function_ref<void(const FileEntry *FE)> Visitor) { | |||
9105 | unsigned NumInputs = MF.InputFilesLoaded.size(); | |||
9106 | for (unsigned I = 0; I < NumInputs; ++I) { | |||
9107 | InputFileInfo IFI = readInputFileInfo(MF, I + 1); | |||
9108 | if (IFI.TopLevelModuleMap) | |||
9109 | // FIXME: This unnecessarily re-reads the InputFileInfo. | |||
9110 | if (auto *FE = getInputFile(MF, I + 1).getFile()) | |||
9111 | Visitor(FE); | |||
9112 | } | |||
9113 | } | |||
9114 | ||||
9115 | std::string ASTReader::getOwningModuleNameForDiagnostic(const Decl *D) { | |||
9116 | // If we know the owning module, use it. | |||
9117 | if (Module *M = D->getImportedOwningModule()) | |||
9118 | return M->getFullModuleName(); | |||
9119 | ||||
9120 | // Otherwise, use the name of the top-level module the decl is within. | |||
9121 | if (ModuleFile *M = getOwningModuleFile(D)) | |||
9122 | return M->ModuleName; | |||
9123 | ||||
9124 | // Not from a module. | |||
9125 | return {}; | |||
9126 | } | |||
9127 | ||||
9128 | void ASTReader::finishPendingActions() { | |||
9129 | while (!PendingIdentifierInfos.empty() || | |||
9130 | !PendingIncompleteDeclChains.empty() || !PendingDeclChains.empty() || | |||
9131 | !PendingMacroIDs.empty() || !PendingDeclContextInfos.empty() || | |||
9132 | !PendingUpdateRecords.empty()) { | |||
9133 | // If any identifiers with corresponding top-level declarations have | |||
9134 | // been loaded, load those declarations now. | |||
9135 | using TopLevelDeclsMap = | |||
9136 | llvm::DenseMap<IdentifierInfo *, SmallVector<Decl *, 2>>; | |||
9137 | TopLevelDeclsMap TopLevelDecls; | |||
9138 | ||||
9139 | while (!PendingIdentifierInfos.empty()) { | |||
9140 | IdentifierInfo *II = PendingIdentifierInfos.back().first; | |||
9141 | SmallVector<uint32_t, 4> DeclIDs = | |||
9142 | std::move(PendingIdentifierInfos.back().second); | |||
9143 | PendingIdentifierInfos.pop_back(); | |||
9144 | ||||
9145 | SetGloballyVisibleDecls(II, DeclIDs, &TopLevelDecls[II]); | |||
9146 | } | |||
9147 | ||||
9148 | // For each decl chain that we wanted to complete while deserializing, mark | |||
9149 | // it as "still needs to be completed". | |||
9150 | for (unsigned I = 0; I != PendingIncompleteDeclChains.size(); ++I) { | |||
9151 | markIncompleteDeclChain(PendingIncompleteDeclChains[I]); | |||
9152 | } | |||
9153 | PendingIncompleteDeclChains.clear(); | |||
9154 | ||||
9155 | // Load pending declaration chains. | |||
9156 | for (unsigned I = 0; I != PendingDeclChains.size(); ++I) | |||
9157 | loadPendingDeclChain(PendingDeclChains[I].first, PendingDeclChains[I].second); | |||
9158 | PendingDeclChains.clear(); | |||
9159 | ||||
9160 | // Make the most recent of the top-level declarations visible. | |||
9161 | for (TopLevelDeclsMap::iterator TLD = TopLevelDecls.begin(), | |||
9162 | TLDEnd = TopLevelDecls.end(); TLD != TLDEnd; ++TLD) { | |||
9163 | IdentifierInfo *II = TLD->first; | |||
9164 | for (unsigned I = 0, N = TLD->second.size(); I != N; ++I) { | |||
9165 | pushExternalDeclIntoScope(cast<NamedDecl>(TLD->second[I]), II); | |||
9166 | } | |||
9167 | } | |||
9168 | ||||
9169 | // Load any pending macro definitions. | |||
9170 | for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) { | |||
9171 | IdentifierInfo *II = PendingMacroIDs.begin()[I].first; | |||
9172 | SmallVector<PendingMacroInfo, 2> GlobalIDs; | |||
9173 | GlobalIDs.swap(PendingMacroIDs.begin()[I].second); | |||
9174 | // Initialize the macro history from chained-PCHs ahead of module imports. | |||
9175 | for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs; | |||
9176 | ++IDIdx) { | |||
9177 | const PendingMacroInfo &Info = GlobalIDs[IDIdx]; | |||
9178 | if (!Info.M->isModule()) | |||
9179 | resolvePendingMacro(II, Info); | |||
9180 | } | |||
9181 | // Handle module imports. | |||
9182 | for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs; | |||
9183 | ++IDIdx) { | |||
9184 | const PendingMacroInfo &Info = GlobalIDs[IDIdx]; | |||
9185 | if (Info.M->isModule()) | |||
9186 | resolvePendingMacro(II, Info); | |||
9187 | } | |||
9188 | } | |||
9189 | PendingMacroIDs.clear(); | |||
9190 | ||||
9191 | // Wire up the DeclContexts for Decls that we delayed setting until | |||
9192 | // recursive loading is completed. | |||
9193 | while (!PendingDeclContextInfos.empty()) { | |||
9194 | PendingDeclContextInfo Info = PendingDeclContextInfos.front(); | |||
9195 | PendingDeclContextInfos.pop_front(); | |||
9196 | DeclContext *SemaDC = cast<DeclContext>(GetDecl(Info.SemaDC)); | |||
9197 | DeclContext *LexicalDC = cast<DeclContext>(GetDecl(Info.LexicalDC)); | |||
9198 | Info.D->setDeclContextsImpl(SemaDC, LexicalDC, getContext()); | |||
9199 | } | |||
9200 | ||||
9201 | // Perform any pending declaration updates. | |||
9202 | while (!PendingUpdateRecords.empty()) { | |||
9203 | auto Update = PendingUpdateRecords.pop_back_val(); | |||
9204 | ReadingKindTracker ReadingKind(Read_Decl, *this); | |||
9205 | loadDeclUpdateRecords(Update); | |||
9206 | } | |||
9207 | } | |||
9208 | ||||
9209 | // At this point, all update records for loaded decls are in place, so any | |||
9210 | // fake class definitions should have become real. | |||
9211 | assert(PendingFakeDefinitionData.empty() &&(static_cast <bool> (PendingFakeDefinitionData.empty() && "faked up a class definition but never saw the real one") ? void (0) : __assert_fail ("PendingFakeDefinitionData.empty() && \"faked up a class definition but never saw the real one\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9212, __extension__ __PRETTY_FUNCTION__)) | |||
9212 | "faked up a class definition but never saw the real one")(static_cast <bool> (PendingFakeDefinitionData.empty() && "faked up a class definition but never saw the real one") ? void (0) : __assert_fail ("PendingFakeDefinitionData.empty() && \"faked up a class definition but never saw the real one\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9212, __extension__ __PRETTY_FUNCTION__)); | |||
9213 | ||||
9214 | // If we deserialized any C++ or Objective-C class definitions, any | |||
9215 | // Objective-C protocol definitions, or any redeclarable templates, make sure | |||
9216 | // that all redeclarations point to the definitions. Note that this can only | |||
9217 | // happen now, after the redeclaration chains have been fully wired. | |||
9218 | for (Decl *D : PendingDefinitions) { | |||
9219 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) { | |||
9220 | if (const TagType *TagT = dyn_cast<TagType>(TD->getTypeForDecl())) { | |||
9221 | // Make sure that the TagType points at the definition. | |||
9222 | const_cast<TagType*>(TagT)->decl = TD; | |||
9223 | } | |||
9224 | ||||
9225 | if (auto RD = dyn_cast<CXXRecordDecl>(D)) { | |||
9226 | for (auto *R = getMostRecentExistingDecl(RD); R; | |||
9227 | R = R->getPreviousDecl()) { | |||
9228 | assert((R == D) ==(static_cast <bool> ((R == D) == cast<CXXRecordDecl> (R)->isThisDeclarationADefinition() && "declaration thinks it's the definition but it isn't" ) ? void (0) : __assert_fail ("(R == D) == cast<CXXRecordDecl>(R)->isThisDeclarationADefinition() && \"declaration thinks it's the definition but it isn't\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9230, __extension__ __PRETTY_FUNCTION__)) | |||
9229 | cast<CXXRecordDecl>(R)->isThisDeclarationADefinition() &&(static_cast <bool> ((R == D) == cast<CXXRecordDecl> (R)->isThisDeclarationADefinition() && "declaration thinks it's the definition but it isn't" ) ? void (0) : __assert_fail ("(R == D) == cast<CXXRecordDecl>(R)->isThisDeclarationADefinition() && \"declaration thinks it's the definition but it isn't\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9230, __extension__ __PRETTY_FUNCTION__)) | |||
9230 | "declaration thinks it's the definition but it isn't")(static_cast <bool> ((R == D) == cast<CXXRecordDecl> (R)->isThisDeclarationADefinition() && "declaration thinks it's the definition but it isn't" ) ? void (0) : __assert_fail ("(R == D) == cast<CXXRecordDecl>(R)->isThisDeclarationADefinition() && \"declaration thinks it's the definition but it isn't\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9230, __extension__ __PRETTY_FUNCTION__)); | |||
9231 | cast<CXXRecordDecl>(R)->DefinitionData = RD->DefinitionData; | |||
9232 | } | |||
9233 | } | |||
9234 | ||||
9235 | continue; | |||
9236 | } | |||
9237 | ||||
9238 | if (auto ID = dyn_cast<ObjCInterfaceDecl>(D)) { | |||
9239 | // Make sure that the ObjCInterfaceType points at the definition. | |||
9240 | const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl)) | |||
9241 | ->Decl = ID; | |||
9242 | ||||
9243 | for (auto *R = getMostRecentExistingDecl(ID); R; R = R->getPreviousDecl()) | |||
9244 | cast<ObjCInterfaceDecl>(R)->Data = ID->Data; | |||
9245 | ||||
9246 | continue; | |||
9247 | } | |||
9248 | ||||
9249 | if (auto PD = dyn_cast<ObjCProtocolDecl>(D)) { | |||
9250 | for (auto *R = getMostRecentExistingDecl(PD); R; R = R->getPreviousDecl()) | |||
9251 | cast<ObjCProtocolDecl>(R)->Data = PD->Data; | |||
9252 | ||||
9253 | continue; | |||
9254 | } | |||
9255 | ||||
9256 | auto RTD = cast<RedeclarableTemplateDecl>(D)->getCanonicalDecl(); | |||
9257 | for (auto *R = getMostRecentExistingDecl(RTD); R; R = R->getPreviousDecl()) | |||
9258 | cast<RedeclarableTemplateDecl>(R)->Common = RTD->Common; | |||
9259 | } | |||
9260 | PendingDefinitions.clear(); | |||
9261 | ||||
9262 | // Load the bodies of any functions or methods we've encountered. We do | |||
9263 | // this now (delayed) so that we can be sure that the declaration chains | |||
9264 | // have been fully wired up (hasBody relies on this). | |||
9265 | // FIXME: We shouldn't require complete redeclaration chains here. | |||
9266 | for (PendingBodiesMap::iterator PB = PendingBodies.begin(), | |||
9267 | PBEnd = PendingBodies.end(); | |||
9268 | PB != PBEnd; ++PB) { | |||
9269 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) { | |||
9270 | // FIXME: Check for =delete/=default? | |||
9271 | // FIXME: Complain about ODR violations here? | |||
9272 | const FunctionDecl *Defn = nullptr; | |||
9273 | if (!getContext().getLangOpts().Modules || !FD->hasBody(Defn)) { | |||
9274 | FD->setLazyBody(PB->second); | |||
9275 | } else { | |||
9276 | auto *NonConstDefn = const_cast<FunctionDecl*>(Defn); | |||
9277 | mergeDefinitionVisibility(NonConstDefn, FD); | |||
9278 | ||||
9279 | if (!FD->isLateTemplateParsed() && | |||
9280 | !NonConstDefn->isLateTemplateParsed() && | |||
9281 | FD->getODRHash() != NonConstDefn->getODRHash()) { | |||
9282 | PendingFunctionOdrMergeFailures[FD].push_back(NonConstDefn); | |||
9283 | } | |||
9284 | } | |||
9285 | continue; | |||
9286 | } | |||
9287 | ||||
9288 | ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first); | |||
9289 | if (!getContext().getLangOpts().Modules || !MD->hasBody()) | |||
9290 | MD->setLazyBody(PB->second); | |||
9291 | } | |||
9292 | PendingBodies.clear(); | |||
9293 | ||||
9294 | // Do some cleanup. | |||
9295 | for (auto *ND : PendingMergedDefinitionsToDeduplicate) | |||
9296 | getContext().deduplicateMergedDefinitonsFor(ND); | |||
9297 | PendingMergedDefinitionsToDeduplicate.clear(); | |||
9298 | } | |||
9299 | ||||
9300 | void ASTReader::diagnoseOdrViolations() { | |||
9301 | if (PendingOdrMergeFailures.empty() && PendingOdrMergeChecks.empty() && | |||
9302 | PendingFunctionOdrMergeFailures.empty()) | |||
9303 | return; | |||
9304 | ||||
9305 | // Trigger the import of the full definition of each class that had any | |||
9306 | // odr-merging problems, so we can produce better diagnostics for them. | |||
9307 | // These updates may in turn find and diagnose some ODR failures, so take | |||
9308 | // ownership of the set first. | |||
9309 | auto OdrMergeFailures = std::move(PendingOdrMergeFailures); | |||
9310 | PendingOdrMergeFailures.clear(); | |||
9311 | for (auto &Merge : OdrMergeFailures) { | |||
9312 | Merge.first->buildLookup(); | |||
9313 | Merge.first->decls_begin(); | |||
9314 | Merge.first->bases_begin(); | |||
9315 | Merge.first->vbases_begin(); | |||
9316 | for (auto &RecordPair : Merge.second) { | |||
9317 | auto *RD = RecordPair.first; | |||
9318 | RD->decls_begin(); | |||
9319 | RD->bases_begin(); | |||
9320 | RD->vbases_begin(); | |||
9321 | } | |||
9322 | } | |||
9323 | ||||
9324 | // Trigger the import of functions. | |||
9325 | auto FunctionOdrMergeFailures = std::move(PendingFunctionOdrMergeFailures); | |||
9326 | PendingFunctionOdrMergeFailures.clear(); | |||
9327 | for (auto &Merge : FunctionOdrMergeFailures) { | |||
9328 | Merge.first->buildLookup(); | |||
9329 | Merge.first->decls_begin(); | |||
9330 | Merge.first->getBody(); | |||
9331 | for (auto &FD : Merge.second) { | |||
9332 | FD->buildLookup(); | |||
9333 | FD->decls_begin(); | |||
9334 | FD->getBody(); | |||
9335 | } | |||
9336 | } | |||
9337 | ||||
9338 | // For each declaration from a merged context, check that the canonical | |||
9339 | // definition of that context also contains a declaration of the same | |||
9340 | // entity. | |||
9341 | // | |||
9342 | // Caution: this loop does things that might invalidate iterators into | |||
9343 | // PendingOdrMergeChecks. Don't turn this into a range-based for loop! | |||
9344 | while (!PendingOdrMergeChecks.empty()) { | |||
9345 | NamedDecl *D = PendingOdrMergeChecks.pop_back_val(); | |||
9346 | ||||
9347 | // FIXME: Skip over implicit declarations for now. This matters for things | |||
9348 | // like implicitly-declared special member functions. This isn't entirely | |||
9349 | // correct; we can end up with multiple unmerged declarations of the same | |||
9350 | // implicit entity. | |||
9351 | if (D->isImplicit()) | |||
9352 | continue; | |||
9353 | ||||
9354 | DeclContext *CanonDef = D->getDeclContext(); | |||
9355 | ||||
9356 | bool Found = false; | |||
9357 | const Decl *DCanon = D->getCanonicalDecl(); | |||
9358 | ||||
9359 | for (auto RI : D->redecls()) { | |||
9360 | if (RI->getLexicalDeclContext() == CanonDef) { | |||
9361 | Found = true; | |||
9362 | break; | |||
9363 | } | |||
9364 | } | |||
9365 | if (Found) | |||
9366 | continue; | |||
9367 | ||||
9368 | // Quick check failed, time to do the slow thing. Note, we can't just | |||
9369 | // look up the name of D in CanonDef here, because the member that is | |||
9370 | // in CanonDef might not be found by name lookup (it might have been | |||
9371 | // replaced by a more recent declaration in the lookup table), and we | |||
9372 | // can't necessarily find it in the redeclaration chain because it might | |||
9373 | // be merely mergeable, not redeclarable. | |||
9374 | llvm::SmallVector<const NamedDecl*, 4> Candidates; | |||
9375 | for (auto *CanonMember : CanonDef->decls()) { | |||
9376 | if (CanonMember->getCanonicalDecl() == DCanon) { | |||
9377 | // This can happen if the declaration is merely mergeable and not | |||
9378 | // actually redeclarable (we looked for redeclarations earlier). | |||
9379 | // | |||
9380 | // FIXME: We should be able to detect this more efficiently, without | |||
9381 | // pulling in all of the members of CanonDef. | |||
9382 | Found = true; | |||
9383 | break; | |||
9384 | } | |||
9385 | if (auto *ND = dyn_cast<NamedDecl>(CanonMember)) | |||
9386 | if (ND->getDeclName() == D->getDeclName()) | |||
9387 | Candidates.push_back(ND); | |||
9388 | } | |||
9389 | ||||
9390 | if (!Found) { | |||
9391 | // The AST doesn't like TagDecls becoming invalid after they've been | |||
9392 | // completed. We only really need to mark FieldDecls as invalid here. | |||
9393 | if (!isa<TagDecl>(D)) | |||
9394 | D->setInvalidDecl(); | |||
9395 | ||||
9396 | // Ensure we don't accidentally recursively enter deserialization while | |||
9397 | // we're producing our diagnostic. | |||
9398 | Deserializing RecursionGuard(this); | |||
9399 | ||||
9400 | std::string CanonDefModule = | |||
9401 | getOwningModuleNameForDiagnostic(cast<Decl>(CanonDef)); | |||
9402 | Diag(D->getLocation(), diag::err_module_odr_violation_missing_decl) | |||
9403 | << D << getOwningModuleNameForDiagnostic(D) | |||
9404 | << CanonDef << CanonDefModule.empty() << CanonDefModule; | |||
9405 | ||||
9406 | if (Candidates.empty()) | |||
9407 | Diag(cast<Decl>(CanonDef)->getLocation(), | |||
9408 | diag::note_module_odr_violation_no_possible_decls) << D; | |||
9409 | else { | |||
9410 | for (unsigned I = 0, N = Candidates.size(); I != N; ++I) | |||
9411 | Diag(Candidates[I]->getLocation(), | |||
9412 | diag::note_module_odr_violation_possible_decl) | |||
9413 | << Candidates[I]; | |||
9414 | } | |||
9415 | ||||
9416 | DiagnosedOdrMergeFailures.insert(CanonDef); | |||
9417 | } | |||
9418 | } | |||
9419 | ||||
9420 | if (OdrMergeFailures.empty() && FunctionOdrMergeFailures.empty()) | |||
9421 | return; | |||
9422 | ||||
9423 | // Ensure we don't accidentally recursively enter deserialization while | |||
9424 | // we're producing our diagnostics. | |||
9425 | Deserializing RecursionGuard(this); | |||
9426 | ||||
9427 | // Common code for hashing helpers. | |||
9428 | ODRHash Hash; | |||
9429 | auto ComputeQualTypeODRHash = [&Hash](QualType Ty) { | |||
9430 | Hash.clear(); | |||
9431 | Hash.AddQualType(Ty); | |||
9432 | return Hash.CalculateHash(); | |||
9433 | }; | |||
9434 | ||||
9435 | auto ComputeODRHash = [&Hash](const Stmt *S) { | |||
9436 | assert(S)(static_cast <bool> (S) ? void (0) : __assert_fail ("S" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9436, __extension__ __PRETTY_FUNCTION__)); | |||
9437 | Hash.clear(); | |||
9438 | Hash.AddStmt(S); | |||
9439 | return Hash.CalculateHash(); | |||
9440 | }; | |||
9441 | ||||
9442 | auto ComputeSubDeclODRHash = [&Hash](const Decl *D) { | |||
9443 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9443, __extension__ __PRETTY_FUNCTION__)); | |||
9444 | Hash.clear(); | |||
9445 | Hash.AddSubDecl(D); | |||
9446 | return Hash.CalculateHash(); | |||
9447 | }; | |||
9448 | ||||
9449 | // Issue any pending ODR-failure diagnostics. | |||
9450 | for (auto &Merge : OdrMergeFailures) { | |||
9451 | // If we've already pointed out a specific problem with this class, don't | |||
9452 | // bother issuing a general "something's different" diagnostic. | |||
9453 | if (!DiagnosedOdrMergeFailures.insert(Merge.first).second) | |||
9454 | continue; | |||
9455 | ||||
9456 | bool Diagnosed = false; | |||
9457 | CXXRecordDecl *FirstRecord = Merge.first; | |||
9458 | std::string FirstModule = getOwningModuleNameForDiagnostic(FirstRecord); | |||
9459 | for (auto &RecordPair : Merge.second) { | |||
9460 | CXXRecordDecl *SecondRecord = RecordPair.first; | |||
9461 | // Multiple different declarations got merged together; tell the user | |||
9462 | // where they came from. | |||
9463 | if (FirstRecord == SecondRecord) | |||
9464 | continue; | |||
9465 | ||||
9466 | std::string SecondModule = getOwningModuleNameForDiagnostic(SecondRecord); | |||
9467 | ||||
9468 | auto *FirstDD = FirstRecord->DefinitionData; | |||
9469 | auto *SecondDD = RecordPair.second; | |||
9470 | ||||
9471 | assert(FirstDD && SecondDD && "Definitions without DefinitionData")(static_cast <bool> (FirstDD && SecondDD && "Definitions without DefinitionData") ? void (0) : __assert_fail ("FirstDD && SecondDD && \"Definitions without DefinitionData\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9471, __extension__ __PRETTY_FUNCTION__)); | |||
9472 | ||||
9473 | // Diagnostics from DefinitionData are emitted here. | |||
9474 | if (FirstDD != SecondDD) { | |||
9475 | enum ODRDefinitionDataDifference { | |||
9476 | NumBases, | |||
9477 | NumVBases, | |||
9478 | BaseType, | |||
9479 | BaseVirtual, | |||
9480 | BaseAccess, | |||
9481 | }; | |||
9482 | auto ODRDiagError = [FirstRecord, &FirstModule, | |||
9483 | this](SourceLocation Loc, SourceRange Range, | |||
9484 | ODRDefinitionDataDifference DiffType) { | |||
9485 | return Diag(Loc, diag::err_module_odr_violation_definition_data) | |||
9486 | << FirstRecord << FirstModule.empty() << FirstModule << Range | |||
9487 | << DiffType; | |||
9488 | }; | |||
9489 | auto ODRDiagNote = [&SecondModule, | |||
9490 | this](SourceLocation Loc, SourceRange Range, | |||
9491 | ODRDefinitionDataDifference DiffType) { | |||
9492 | return Diag(Loc, diag::note_module_odr_violation_definition_data) | |||
9493 | << SecondModule << Range << DiffType; | |||
9494 | }; | |||
9495 | ||||
9496 | unsigned FirstNumBases = FirstDD->NumBases; | |||
9497 | unsigned FirstNumVBases = FirstDD->NumVBases; | |||
9498 | unsigned SecondNumBases = SecondDD->NumBases; | |||
9499 | unsigned SecondNumVBases = SecondDD->NumVBases; | |||
9500 | ||||
9501 | auto GetSourceRange = [](struct CXXRecordDecl::DefinitionData *DD) { | |||
9502 | unsigned NumBases = DD->NumBases; | |||
9503 | if (NumBases == 0) return SourceRange(); | |||
9504 | auto bases = DD->bases(); | |||
9505 | return SourceRange(bases[0].getLocStart(), | |||
9506 | bases[NumBases - 1].getLocEnd()); | |||
9507 | }; | |||
9508 | ||||
9509 | if (FirstNumBases != SecondNumBases) { | |||
9510 | ODRDiagError(FirstRecord->getLocation(), GetSourceRange(FirstDD), | |||
9511 | NumBases) | |||
9512 | << FirstNumBases; | |||
9513 | ODRDiagNote(SecondRecord->getLocation(), GetSourceRange(SecondDD), | |||
9514 | NumBases) | |||
9515 | << SecondNumBases; | |||
9516 | Diagnosed = true; | |||
9517 | break; | |||
9518 | } | |||
9519 | ||||
9520 | if (FirstNumVBases != SecondNumVBases) { | |||
9521 | ODRDiagError(FirstRecord->getLocation(), GetSourceRange(FirstDD), | |||
9522 | NumVBases) | |||
9523 | << FirstNumVBases; | |||
9524 | ODRDiagNote(SecondRecord->getLocation(), GetSourceRange(SecondDD), | |||
9525 | NumVBases) | |||
9526 | << SecondNumVBases; | |||
9527 | Diagnosed = true; | |||
9528 | break; | |||
9529 | } | |||
9530 | ||||
9531 | auto FirstBases = FirstDD->bases(); | |||
9532 | auto SecondBases = SecondDD->bases(); | |||
9533 | unsigned i = 0; | |||
9534 | for (i = 0; i < FirstNumBases; ++i) { | |||
9535 | auto FirstBase = FirstBases[i]; | |||
9536 | auto SecondBase = SecondBases[i]; | |||
9537 | if (ComputeQualTypeODRHash(FirstBase.getType()) != | |||
9538 | ComputeQualTypeODRHash(SecondBase.getType())) { | |||
9539 | ODRDiagError(FirstRecord->getLocation(), FirstBase.getSourceRange(), | |||
9540 | BaseType) | |||
9541 | << (i + 1) << FirstBase.getType(); | |||
9542 | ODRDiagNote(SecondRecord->getLocation(), | |||
9543 | SecondBase.getSourceRange(), BaseType) | |||
9544 | << (i + 1) << SecondBase.getType(); | |||
9545 | break; | |||
9546 | } | |||
9547 | ||||
9548 | if (FirstBase.isVirtual() != SecondBase.isVirtual()) { | |||
9549 | ODRDiagError(FirstRecord->getLocation(), FirstBase.getSourceRange(), | |||
9550 | BaseVirtual) | |||
9551 | << (i + 1) << FirstBase.isVirtual() << FirstBase.getType(); | |||
9552 | ODRDiagNote(SecondRecord->getLocation(), | |||
9553 | SecondBase.getSourceRange(), BaseVirtual) | |||
9554 | << (i + 1) << SecondBase.isVirtual() << SecondBase.getType(); | |||
9555 | break; | |||
9556 | } | |||
9557 | ||||
9558 | if (FirstBase.getAccessSpecifierAsWritten() != | |||
9559 | SecondBase.getAccessSpecifierAsWritten()) { | |||
9560 | ODRDiagError(FirstRecord->getLocation(), FirstBase.getSourceRange(), | |||
9561 | BaseAccess) | |||
9562 | << (i + 1) << FirstBase.getType() | |||
9563 | << (int)FirstBase.getAccessSpecifierAsWritten(); | |||
9564 | ODRDiagNote(SecondRecord->getLocation(), | |||
9565 | SecondBase.getSourceRange(), BaseAccess) | |||
9566 | << (i + 1) << SecondBase.getType() | |||
9567 | << (int)SecondBase.getAccessSpecifierAsWritten(); | |||
9568 | break; | |||
9569 | } | |||
9570 | } | |||
9571 | ||||
9572 | if (i != FirstNumBases) { | |||
9573 | Diagnosed = true; | |||
9574 | break; | |||
9575 | } | |||
9576 | } | |||
9577 | ||||
9578 | using DeclHashes = llvm::SmallVector<std::pair<Decl *, unsigned>, 4>; | |||
9579 | ||||
9580 | const ClassTemplateDecl *FirstTemplate = | |||
9581 | FirstRecord->getDescribedClassTemplate(); | |||
9582 | const ClassTemplateDecl *SecondTemplate = | |||
9583 | SecondRecord->getDescribedClassTemplate(); | |||
9584 | ||||
9585 | assert(!FirstTemplate == !SecondTemplate &&(static_cast <bool> (!FirstTemplate == !SecondTemplate && "Both pointers should be null or non-null") ? void (0) : __assert_fail ("!FirstTemplate == !SecondTemplate && \"Both pointers should be null or non-null\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9586, __extension__ __PRETTY_FUNCTION__)) | |||
9586 | "Both pointers should be null or non-null")(static_cast <bool> (!FirstTemplate == !SecondTemplate && "Both pointers should be null or non-null") ? void (0) : __assert_fail ("!FirstTemplate == !SecondTemplate && \"Both pointers should be null or non-null\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9586, __extension__ __PRETTY_FUNCTION__)); | |||
9587 | ||||
9588 | enum ODRTemplateDifference { | |||
9589 | ParamEmptyName, | |||
9590 | ParamName, | |||
9591 | ParamSingleDefaultArgument, | |||
9592 | ParamDifferentDefaultArgument, | |||
9593 | }; | |||
9594 | ||||
9595 | if (FirstTemplate && SecondTemplate) { | |||
9596 | DeclHashes FirstTemplateHashes; | |||
9597 | DeclHashes SecondTemplateHashes; | |||
9598 | ||||
9599 | auto PopulateTemplateParameterHashs = | |||
9600 | [&ComputeSubDeclODRHash](DeclHashes &Hashes, | |||
9601 | const ClassTemplateDecl *TD) { | |||
9602 | for (auto *D : TD->getTemplateParameters()->asArray()) { | |||
9603 | Hashes.emplace_back(D, ComputeSubDeclODRHash(D)); | |||
9604 | } | |||
9605 | }; | |||
9606 | ||||
9607 | PopulateTemplateParameterHashs(FirstTemplateHashes, FirstTemplate); | |||
9608 | PopulateTemplateParameterHashs(SecondTemplateHashes, SecondTemplate); | |||
9609 | ||||
9610 | assert(FirstTemplateHashes.size() == SecondTemplateHashes.size() &&(static_cast <bool> (FirstTemplateHashes.size() == SecondTemplateHashes .size() && "Number of template parameters should be equal." ) ? void (0) : __assert_fail ("FirstTemplateHashes.size() == SecondTemplateHashes.size() && \"Number of template parameters should be equal.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9611, __extension__ __PRETTY_FUNCTION__)) | |||
9611 | "Number of template parameters should be equal.")(static_cast <bool> (FirstTemplateHashes.size() == SecondTemplateHashes .size() && "Number of template parameters should be equal." ) ? void (0) : __assert_fail ("FirstTemplateHashes.size() == SecondTemplateHashes.size() && \"Number of template parameters should be equal.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9611, __extension__ __PRETTY_FUNCTION__)); | |||
9612 | ||||
9613 | auto FirstIt = FirstTemplateHashes.begin(); | |||
9614 | auto FirstEnd = FirstTemplateHashes.end(); | |||
9615 | auto SecondIt = SecondTemplateHashes.begin(); | |||
9616 | for (; FirstIt != FirstEnd; ++FirstIt, ++SecondIt) { | |||
9617 | if (FirstIt->second == SecondIt->second) | |||
9618 | continue; | |||
9619 | ||||
9620 | auto ODRDiagError = [FirstRecord, &FirstModule, | |||
9621 | this](SourceLocation Loc, SourceRange Range, | |||
9622 | ODRTemplateDifference DiffType) { | |||
9623 | return Diag(Loc, diag::err_module_odr_violation_template_parameter) | |||
9624 | << FirstRecord << FirstModule.empty() << FirstModule << Range | |||
9625 | << DiffType; | |||
9626 | }; | |||
9627 | auto ODRDiagNote = [&SecondModule, | |||
9628 | this](SourceLocation Loc, SourceRange Range, | |||
9629 | ODRTemplateDifference DiffType) { | |||
9630 | return Diag(Loc, diag::note_module_odr_violation_template_parameter) | |||
9631 | << SecondModule << Range << DiffType; | |||
9632 | }; | |||
9633 | ||||
9634 | const NamedDecl* FirstDecl = cast<NamedDecl>(FirstIt->first); | |||
9635 | const NamedDecl* SecondDecl = cast<NamedDecl>(SecondIt->first); | |||
9636 | ||||
9637 | assert(FirstDecl->getKind() == SecondDecl->getKind() &&(static_cast <bool> (FirstDecl->getKind() == SecondDecl ->getKind() && "Parameter Decl's should be the same kind." ) ? void (0) : __assert_fail ("FirstDecl->getKind() == SecondDecl->getKind() && \"Parameter Decl's should be the same kind.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9638, __extension__ __PRETTY_FUNCTION__)) | |||
9638 | "Parameter Decl's should be the same kind.")(static_cast <bool> (FirstDecl->getKind() == SecondDecl ->getKind() && "Parameter Decl's should be the same kind." ) ? void (0) : __assert_fail ("FirstDecl->getKind() == SecondDecl->getKind() && \"Parameter Decl's should be the same kind.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9638, __extension__ __PRETTY_FUNCTION__)); | |||
9639 | ||||
9640 | DeclarationName FirstName = FirstDecl->getDeclName(); | |||
9641 | DeclarationName SecondName = SecondDecl->getDeclName(); | |||
9642 | ||||
9643 | if (FirstName != SecondName) { | |||
9644 | const bool FirstNameEmpty = | |||
9645 | FirstName.isIdentifier() && !FirstName.getAsIdentifierInfo(); | |||
9646 | const bool SecondNameEmpty = | |||
9647 | SecondName.isIdentifier() && !SecondName.getAsIdentifierInfo(); | |||
9648 | assert((!FirstNameEmpty || !SecondNameEmpty) &&(static_cast <bool> ((!FirstNameEmpty || !SecondNameEmpty ) && "Both template parameters cannot be unnamed.") ? void (0) : __assert_fail ("(!FirstNameEmpty || !SecondNameEmpty) && \"Both template parameters cannot be unnamed.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9649, __extension__ __PRETTY_FUNCTION__)) | |||
9649 | "Both template parameters cannot be unnamed.")(static_cast <bool> ((!FirstNameEmpty || !SecondNameEmpty ) && "Both template parameters cannot be unnamed.") ? void (0) : __assert_fail ("(!FirstNameEmpty || !SecondNameEmpty) && \"Both template parameters cannot be unnamed.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9649, __extension__ __PRETTY_FUNCTION__)); | |||
9650 | ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(), | |||
9651 | FirstNameEmpty ? ParamEmptyName : ParamName) | |||
9652 | << FirstName; | |||
9653 | ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(), | |||
9654 | SecondNameEmpty ? ParamEmptyName : ParamName) | |||
9655 | << SecondName; | |||
9656 | break; | |||
9657 | } | |||
9658 | ||||
9659 | switch (FirstDecl->getKind()) { | |||
9660 | default: | |||
9661 | llvm_unreachable("Invalid template parameter type.")::llvm::llvm_unreachable_internal("Invalid template parameter type." , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9661); | |||
9662 | case Decl::TemplateTypeParm: { | |||
9663 | const auto *FirstParam = cast<TemplateTypeParmDecl>(FirstDecl); | |||
9664 | const auto *SecondParam = cast<TemplateTypeParmDecl>(SecondDecl); | |||
9665 | const bool HasFirstDefaultArgument = | |||
9666 | FirstParam->hasDefaultArgument() && | |||
9667 | !FirstParam->defaultArgumentWasInherited(); | |||
9668 | const bool HasSecondDefaultArgument = | |||
9669 | SecondParam->hasDefaultArgument() && | |||
9670 | !SecondParam->defaultArgumentWasInherited(); | |||
9671 | ||||
9672 | if (HasFirstDefaultArgument != HasSecondDefaultArgument) { | |||
9673 | ODRDiagError(FirstDecl->getLocation(), | |||
9674 | FirstDecl->getSourceRange(), | |||
9675 | ParamSingleDefaultArgument) | |||
9676 | << HasFirstDefaultArgument; | |||
9677 | ODRDiagNote(SecondDecl->getLocation(), | |||
9678 | SecondDecl->getSourceRange(), | |||
9679 | ParamSingleDefaultArgument) | |||
9680 | << HasSecondDefaultArgument; | |||
9681 | break; | |||
9682 | } | |||
9683 | ||||
9684 | assert(HasFirstDefaultArgument && HasSecondDefaultArgument &&(static_cast <bool> (HasFirstDefaultArgument && HasSecondDefaultArgument && "Expecting default arguments." ) ? void (0) : __assert_fail ("HasFirstDefaultArgument && HasSecondDefaultArgument && \"Expecting default arguments.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9685, __extension__ __PRETTY_FUNCTION__)) | |||
9685 | "Expecting default arguments.")(static_cast <bool> (HasFirstDefaultArgument && HasSecondDefaultArgument && "Expecting default arguments." ) ? void (0) : __assert_fail ("HasFirstDefaultArgument && HasSecondDefaultArgument && \"Expecting default arguments.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9685, __extension__ __PRETTY_FUNCTION__)); | |||
9686 | ||||
9687 | ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(), | |||
9688 | ParamDifferentDefaultArgument); | |||
9689 | ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(), | |||
9690 | ParamDifferentDefaultArgument); | |||
9691 | ||||
9692 | break; | |||
9693 | } | |||
9694 | case Decl::NonTypeTemplateParm: { | |||
9695 | const auto *FirstParam = cast<NonTypeTemplateParmDecl>(FirstDecl); | |||
9696 | const auto *SecondParam = cast<NonTypeTemplateParmDecl>(SecondDecl); | |||
9697 | const bool HasFirstDefaultArgument = | |||
9698 | FirstParam->hasDefaultArgument() && | |||
9699 | !FirstParam->defaultArgumentWasInherited(); | |||
9700 | const bool HasSecondDefaultArgument = | |||
9701 | SecondParam->hasDefaultArgument() && | |||
9702 | !SecondParam->defaultArgumentWasInherited(); | |||
9703 | ||||
9704 | if (HasFirstDefaultArgument != HasSecondDefaultArgument) { | |||
9705 | ODRDiagError(FirstDecl->getLocation(), | |||
9706 | FirstDecl->getSourceRange(), | |||
9707 | ParamSingleDefaultArgument) | |||
9708 | << HasFirstDefaultArgument; | |||
9709 | ODRDiagNote(SecondDecl->getLocation(), | |||
9710 | SecondDecl->getSourceRange(), | |||
9711 | ParamSingleDefaultArgument) | |||
9712 | << HasSecondDefaultArgument; | |||
9713 | break; | |||
9714 | } | |||
9715 | ||||
9716 | assert(HasFirstDefaultArgument && HasSecondDefaultArgument &&(static_cast <bool> (HasFirstDefaultArgument && HasSecondDefaultArgument && "Expecting default arguments." ) ? void (0) : __assert_fail ("HasFirstDefaultArgument && HasSecondDefaultArgument && \"Expecting default arguments.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9717, __extension__ __PRETTY_FUNCTION__)) | |||
9717 | "Expecting default arguments.")(static_cast <bool> (HasFirstDefaultArgument && HasSecondDefaultArgument && "Expecting default arguments." ) ? void (0) : __assert_fail ("HasFirstDefaultArgument && HasSecondDefaultArgument && \"Expecting default arguments.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9717, __extension__ __PRETTY_FUNCTION__)); | |||
9718 | ||||
9719 | ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(), | |||
9720 | ParamDifferentDefaultArgument); | |||
9721 | ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(), | |||
9722 | ParamDifferentDefaultArgument); | |||
9723 | ||||
9724 | break; | |||
9725 | } | |||
9726 | case Decl::TemplateTemplateParm: { | |||
9727 | const auto *FirstParam = cast<TemplateTemplateParmDecl>(FirstDecl); | |||
9728 | const auto *SecondParam = | |||
9729 | cast<TemplateTemplateParmDecl>(SecondDecl); | |||
9730 | const bool HasFirstDefaultArgument = | |||
9731 | FirstParam->hasDefaultArgument() && | |||
9732 | !FirstParam->defaultArgumentWasInherited(); | |||
9733 | const bool HasSecondDefaultArgument = | |||
9734 | SecondParam->hasDefaultArgument() && | |||
9735 | !SecondParam->defaultArgumentWasInherited(); | |||
9736 | ||||
9737 | if (HasFirstDefaultArgument != HasSecondDefaultArgument) { | |||
9738 | ODRDiagError(FirstDecl->getLocation(), | |||
9739 | FirstDecl->getSourceRange(), | |||
9740 | ParamSingleDefaultArgument) | |||
9741 | << HasFirstDefaultArgument; | |||
9742 | ODRDiagNote(SecondDecl->getLocation(), | |||
9743 | SecondDecl->getSourceRange(), | |||
9744 | ParamSingleDefaultArgument) | |||
9745 | << HasSecondDefaultArgument; | |||
9746 | break; | |||
9747 | } | |||
9748 | ||||
9749 | assert(HasFirstDefaultArgument && HasSecondDefaultArgument &&(static_cast <bool> (HasFirstDefaultArgument && HasSecondDefaultArgument && "Expecting default arguments." ) ? void (0) : __assert_fail ("HasFirstDefaultArgument && HasSecondDefaultArgument && \"Expecting default arguments.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9750, __extension__ __PRETTY_FUNCTION__)) | |||
9750 | "Expecting default arguments.")(static_cast <bool> (HasFirstDefaultArgument && HasSecondDefaultArgument && "Expecting default arguments." ) ? void (0) : __assert_fail ("HasFirstDefaultArgument && HasSecondDefaultArgument && \"Expecting default arguments.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9750, __extension__ __PRETTY_FUNCTION__)); | |||
9751 | ||||
9752 | ODRDiagError(FirstDecl->getLocation(), FirstDecl->getSourceRange(), | |||
9753 | ParamDifferentDefaultArgument); | |||
9754 | ODRDiagNote(SecondDecl->getLocation(), SecondDecl->getSourceRange(), | |||
9755 | ParamDifferentDefaultArgument); | |||
9756 | ||||
9757 | break; | |||
9758 | } | |||
9759 | } | |||
9760 | ||||
9761 | break; | |||
9762 | } | |||
9763 | ||||
9764 | if (FirstIt != FirstEnd) { | |||
9765 | Diagnosed = true; | |||
9766 | break; | |||
9767 | } | |||
9768 | } | |||
9769 | ||||
9770 | DeclHashes FirstHashes; | |||
9771 | DeclHashes SecondHashes; | |||
9772 | ||||
9773 | auto PopulateHashes = [&ComputeSubDeclODRHash, FirstRecord]( | |||
9774 | DeclHashes &Hashes, CXXRecordDecl *Record) { | |||
9775 | for (auto *D : Record->decls()) { | |||
9776 | // Due to decl merging, the first CXXRecordDecl is the parent of | |||
9777 | // Decls in both records. | |||
9778 | if (!ODRHash::isWhitelistedDecl(D, FirstRecord)) | |||
9779 | continue; | |||
9780 | Hashes.emplace_back(D, ComputeSubDeclODRHash(D)); | |||
9781 | } | |||
9782 | }; | |||
9783 | PopulateHashes(FirstHashes, FirstRecord); | |||
9784 | PopulateHashes(SecondHashes, SecondRecord); | |||
9785 | ||||
9786 | // Used with err_module_odr_violation_mismatch_decl and | |||
9787 | // note_module_odr_violation_mismatch_decl | |||
9788 | // This list should be the same Decl's as in ODRHash::isWhiteListedDecl | |||
9789 | enum { | |||
9790 | EndOfClass, | |||
9791 | PublicSpecifer, | |||
9792 | PrivateSpecifer, | |||
9793 | ProtectedSpecifer, | |||
9794 | StaticAssert, | |||
9795 | Field, | |||
9796 | CXXMethod, | |||
9797 | TypeAlias, | |||
9798 | TypeDef, | |||
9799 | Var, | |||
9800 | Friend, | |||
9801 | Other | |||
9802 | } FirstDiffType = Other, | |||
9803 | SecondDiffType = Other; | |||
9804 | ||||
9805 | auto DifferenceSelector = [](Decl *D) { | |||
9806 | assert(D && "valid Decl required")(static_cast <bool> (D && "valid Decl required" ) ? void (0) : __assert_fail ("D && \"valid Decl required\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9806, __extension__ __PRETTY_FUNCTION__)); | |||
9807 | switch (D->getKind()) { | |||
9808 | default: | |||
9809 | return Other; | |||
9810 | case Decl::AccessSpec: | |||
9811 | switch (D->getAccess()) { | |||
9812 | case AS_public: | |||
9813 | return PublicSpecifer; | |||
9814 | case AS_private: | |||
9815 | return PrivateSpecifer; | |||
9816 | case AS_protected: | |||
9817 | return ProtectedSpecifer; | |||
9818 | case AS_none: | |||
9819 | break; | |||
9820 | } | |||
9821 | llvm_unreachable("Invalid access specifier")::llvm::llvm_unreachable_internal("Invalid access specifier", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9821); | |||
9822 | case Decl::StaticAssert: | |||
9823 | return StaticAssert; | |||
9824 | case Decl::Field: | |||
9825 | return Field; | |||
9826 | case Decl::CXXMethod: | |||
9827 | case Decl::CXXConstructor: | |||
9828 | case Decl::CXXDestructor: | |||
9829 | return CXXMethod; | |||
9830 | case Decl::TypeAlias: | |||
9831 | return TypeAlias; | |||
9832 | case Decl::Typedef: | |||
9833 | return TypeDef; | |||
9834 | case Decl::Var: | |||
9835 | return Var; | |||
9836 | case Decl::Friend: | |||
9837 | return Friend; | |||
9838 | } | |||
9839 | }; | |||
9840 | ||||
9841 | Decl *FirstDecl = nullptr; | |||
9842 | Decl *SecondDecl = nullptr; | |||
9843 | auto FirstIt = FirstHashes.begin(); | |||
9844 | auto SecondIt = SecondHashes.begin(); | |||
9845 | ||||
9846 | // If there is a diagnoseable difference, FirstDiffType and | |||
9847 | // SecondDiffType will not be Other and FirstDecl and SecondDecl will be | |||
9848 | // filled in if not EndOfClass. | |||
9849 | while (FirstIt != FirstHashes.end() || SecondIt != SecondHashes.end()) { | |||
9850 | if (FirstIt != FirstHashes.end() && SecondIt != SecondHashes.end() && | |||
9851 | FirstIt->second == SecondIt->second) { | |||
9852 | ++FirstIt; | |||
9853 | ++SecondIt; | |||
9854 | continue; | |||
9855 | } | |||
9856 | ||||
9857 | FirstDecl = FirstIt == FirstHashes.end() ? nullptr : FirstIt->first; | |||
9858 | SecondDecl = SecondIt == SecondHashes.end() ? nullptr : SecondIt->first; | |||
9859 | ||||
9860 | FirstDiffType = FirstDecl ? DifferenceSelector(FirstDecl) : EndOfClass; | |||
9861 | SecondDiffType = | |||
9862 | SecondDecl ? DifferenceSelector(SecondDecl) : EndOfClass; | |||
9863 | ||||
9864 | break; | |||
9865 | } | |||
9866 | ||||
9867 | if (FirstDiffType == Other || SecondDiffType == Other) { | |||
9868 | // Reaching this point means an unexpected Decl was encountered | |||
9869 | // or no difference was detected. This causes a generic error | |||
9870 | // message to be emitted. | |||
9871 | Diag(FirstRecord->getLocation(), | |||
9872 | diag::err_module_odr_violation_different_definitions) | |||
9873 | << FirstRecord << FirstModule.empty() << FirstModule; | |||
9874 | ||||
9875 | if (FirstDecl) { | |||
9876 | Diag(FirstDecl->getLocation(), diag::note_first_module_difference) | |||
9877 | << FirstRecord << FirstDecl->getSourceRange(); | |||
9878 | } | |||
9879 | ||||
9880 | Diag(SecondRecord->getLocation(), | |||
9881 | diag::note_module_odr_violation_different_definitions) | |||
9882 | << SecondModule; | |||
9883 | ||||
9884 | if (SecondDecl) { | |||
9885 | Diag(SecondDecl->getLocation(), diag::note_second_module_difference) | |||
9886 | << SecondDecl->getSourceRange(); | |||
9887 | } | |||
9888 | ||||
9889 | Diagnosed = true; | |||
9890 | break; | |||
9891 | } | |||
9892 | ||||
9893 | if (FirstDiffType != SecondDiffType) { | |||
9894 | SourceLocation FirstLoc; | |||
9895 | SourceRange FirstRange; | |||
9896 | if (FirstDiffType == EndOfClass) { | |||
9897 | FirstLoc = FirstRecord->getBraceRange().getEnd(); | |||
9898 | } else { | |||
9899 | FirstLoc = FirstIt->first->getLocation(); | |||
9900 | FirstRange = FirstIt->first->getSourceRange(); | |||
9901 | } | |||
9902 | Diag(FirstLoc, diag::err_module_odr_violation_mismatch_decl) | |||
9903 | << FirstRecord << FirstModule.empty() << FirstModule << FirstRange | |||
9904 | << FirstDiffType; | |||
9905 | ||||
9906 | SourceLocation SecondLoc; | |||
9907 | SourceRange SecondRange; | |||
9908 | if (SecondDiffType == EndOfClass) { | |||
9909 | SecondLoc = SecondRecord->getBraceRange().getEnd(); | |||
9910 | } else { | |||
9911 | SecondLoc = SecondDecl->getLocation(); | |||
9912 | SecondRange = SecondDecl->getSourceRange(); | |||
9913 | } | |||
9914 | Diag(SecondLoc, diag::note_module_odr_violation_mismatch_decl) | |||
9915 | << SecondModule << SecondRange << SecondDiffType; | |||
9916 | Diagnosed = true; | |||
9917 | break; | |||
9918 | } | |||
9919 | ||||
9920 | assert(FirstDiffType == SecondDiffType)(static_cast <bool> (FirstDiffType == SecondDiffType) ? void (0) : __assert_fail ("FirstDiffType == SecondDiffType", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9920, __extension__ __PRETTY_FUNCTION__)); | |||
9921 | ||||
9922 | // Used with err_module_odr_violation_mismatch_decl_diff and | |||
9923 | // note_module_odr_violation_mismatch_decl_diff | |||
9924 | enum ODRDeclDifference{ | |||
9925 | StaticAssertCondition, | |||
9926 | StaticAssertMessage, | |||
9927 | StaticAssertOnlyMessage, | |||
9928 | FieldName, | |||
9929 | FieldTypeName, | |||
9930 | FieldSingleBitField, | |||
9931 | FieldDifferentWidthBitField, | |||
9932 | FieldSingleMutable, | |||
9933 | FieldSingleInitializer, | |||
9934 | FieldDifferentInitializers, | |||
9935 | MethodName, | |||
9936 | MethodDeleted, | |||
9937 | MethodVirtual, | |||
9938 | MethodStatic, | |||
9939 | MethodVolatile, | |||
9940 | MethodConst, | |||
9941 | MethodInline, | |||
9942 | MethodNumberParameters, | |||
9943 | MethodParameterType, | |||
9944 | MethodParameterName, | |||
9945 | MethodParameterSingleDefaultArgument, | |||
9946 | MethodParameterDifferentDefaultArgument, | |||
9947 | TypedefName, | |||
9948 | TypedefType, | |||
9949 | VarName, | |||
9950 | VarType, | |||
9951 | VarSingleInitializer, | |||
9952 | VarDifferentInitializer, | |||
9953 | VarConstexpr, | |||
9954 | FriendTypeFunction, | |||
9955 | FriendType, | |||
9956 | FriendFunction, | |||
9957 | }; | |||
9958 | ||||
9959 | // These lambdas have the common portions of the ODR diagnostics. This | |||
9960 | // has the same return as Diag(), so addition parameters can be passed | |||
9961 | // in with operator<< | |||
9962 | auto ODRDiagError = [FirstRecord, &FirstModule, this]( | |||
9963 | SourceLocation Loc, SourceRange Range, ODRDeclDifference DiffType) { | |||
9964 | return Diag(Loc, diag::err_module_odr_violation_mismatch_decl_diff) | |||
9965 | << FirstRecord << FirstModule.empty() << FirstModule << Range | |||
9966 | << DiffType; | |||
9967 | }; | |||
9968 | auto ODRDiagNote = [&SecondModule, this]( | |||
9969 | SourceLocation Loc, SourceRange Range, ODRDeclDifference DiffType) { | |||
9970 | return Diag(Loc, diag::note_module_odr_violation_mismatch_decl_diff) | |||
9971 | << SecondModule << Range << DiffType; | |||
9972 | }; | |||
9973 | ||||
9974 | switch (FirstDiffType) { | |||
9975 | case Other: | |||
9976 | case EndOfClass: | |||
9977 | case PublicSpecifer: | |||
9978 | case PrivateSpecifer: | |||
9979 | case ProtectedSpecifer: | |||
9980 | llvm_unreachable("Invalid diff type")::llvm::llvm_unreachable_internal("Invalid diff type", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 9980); | |||
9981 | ||||
9982 | case StaticAssert: { | |||
9983 | StaticAssertDecl *FirstSA = cast<StaticAssertDecl>(FirstDecl); | |||
9984 | StaticAssertDecl *SecondSA = cast<StaticAssertDecl>(SecondDecl); | |||
9985 | ||||
9986 | Expr *FirstExpr = FirstSA->getAssertExpr(); | |||
9987 | Expr *SecondExpr = SecondSA->getAssertExpr(); | |||
9988 | unsigned FirstODRHash = ComputeODRHash(FirstExpr); | |||
9989 | unsigned SecondODRHash = ComputeODRHash(SecondExpr); | |||
9990 | if (FirstODRHash != SecondODRHash) { | |||
9991 | ODRDiagError(FirstExpr->getLocStart(), FirstExpr->getSourceRange(), | |||
9992 | StaticAssertCondition); | |||
9993 | ODRDiagNote(SecondExpr->getLocStart(), | |||
9994 | SecondExpr->getSourceRange(), StaticAssertCondition); | |||
9995 | Diagnosed = true; | |||
9996 | break; | |||
9997 | } | |||
9998 | ||||
9999 | StringLiteral *FirstStr = FirstSA->getMessage(); | |||
10000 | StringLiteral *SecondStr = SecondSA->getMessage(); | |||
10001 | assert((FirstStr || SecondStr) && "Both messages cannot be empty")(static_cast <bool> ((FirstStr || SecondStr) && "Both messages cannot be empty") ? void (0) : __assert_fail ( "(FirstStr || SecondStr) && \"Both messages cannot be empty\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10001, __extension__ __PRETTY_FUNCTION__)); | |||
10002 | if ((FirstStr && !SecondStr) || (!FirstStr && SecondStr)) { | |||
10003 | SourceLocation FirstLoc, SecondLoc; | |||
10004 | SourceRange FirstRange, SecondRange; | |||
10005 | if (FirstStr) { | |||
10006 | FirstLoc = FirstStr->getLocStart(); | |||
10007 | FirstRange = FirstStr->getSourceRange(); | |||
10008 | } else { | |||
10009 | FirstLoc = FirstSA->getLocStart(); | |||
10010 | FirstRange = FirstSA->getSourceRange(); | |||
10011 | } | |||
10012 | if (SecondStr) { | |||
10013 | SecondLoc = SecondStr->getLocStart(); | |||
10014 | SecondRange = SecondStr->getSourceRange(); | |||
10015 | } else { | |||
10016 | SecondLoc = SecondSA->getLocStart(); | |||
10017 | SecondRange = SecondSA->getSourceRange(); | |||
10018 | } | |||
10019 | ODRDiagError(FirstLoc, FirstRange, StaticAssertOnlyMessage) | |||
10020 | << (FirstStr == nullptr); | |||
10021 | ODRDiagNote(SecondLoc, SecondRange, StaticAssertOnlyMessage) | |||
10022 | << (SecondStr == nullptr); | |||
10023 | Diagnosed = true; | |||
10024 | break; | |||
10025 | } | |||
10026 | ||||
10027 | if (FirstStr && SecondStr && | |||
10028 | FirstStr->getString() != SecondStr->getString()) { | |||
10029 | ODRDiagError(FirstStr->getLocStart(), FirstStr->getSourceRange(), | |||
10030 | StaticAssertMessage); | |||
10031 | ODRDiagNote(SecondStr->getLocStart(), SecondStr->getSourceRange(), | |||
10032 | StaticAssertMessage); | |||
10033 | Diagnosed = true; | |||
10034 | break; | |||
10035 | } | |||
10036 | break; | |||
10037 | } | |||
10038 | case Field: { | |||
10039 | FieldDecl *FirstField = cast<FieldDecl>(FirstDecl); | |||
10040 | FieldDecl *SecondField = cast<FieldDecl>(SecondDecl); | |||
10041 | IdentifierInfo *FirstII = FirstField->getIdentifier(); | |||
10042 | IdentifierInfo *SecondII = SecondField->getIdentifier(); | |||
10043 | if (FirstII->getName() != SecondII->getName()) { | |||
10044 | ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(), | |||
10045 | FieldName) | |||
10046 | << FirstII; | |||
10047 | ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(), | |||
10048 | FieldName) | |||
10049 | << SecondII; | |||
10050 | ||||
10051 | Diagnosed = true; | |||
10052 | break; | |||
10053 | } | |||
10054 | ||||
10055 | assert(getContext().hasSameType(FirstField->getType(),(static_cast <bool> (getContext().hasSameType(FirstField ->getType(), SecondField->getType())) ? void (0) : __assert_fail ("getContext().hasSameType(FirstField->getType(), SecondField->getType())" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10056, __extension__ __PRETTY_FUNCTION__)) | |||
10056 | SecondField->getType()))(static_cast <bool> (getContext().hasSameType(FirstField ->getType(), SecondField->getType())) ? void (0) : __assert_fail ("getContext().hasSameType(FirstField->getType(), SecondField->getType())" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10056, __extension__ __PRETTY_FUNCTION__)); | |||
10057 | ||||
10058 | QualType FirstType = FirstField->getType(); | |||
10059 | QualType SecondType = SecondField->getType(); | |||
10060 | if (ComputeQualTypeODRHash(FirstType) != | |||
10061 | ComputeQualTypeODRHash(SecondType)) { | |||
10062 | ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(), | |||
10063 | FieldTypeName) | |||
10064 | << FirstII << FirstType; | |||
10065 | ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(), | |||
10066 | FieldTypeName) | |||
10067 | << SecondII << SecondType; | |||
10068 | ||||
10069 | Diagnosed = true; | |||
10070 | break; | |||
10071 | } | |||
10072 | ||||
10073 | const bool IsFirstBitField = FirstField->isBitField(); | |||
10074 | const bool IsSecondBitField = SecondField->isBitField(); | |||
10075 | if (IsFirstBitField != IsSecondBitField) { | |||
10076 | ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(), | |||
10077 | FieldSingleBitField) | |||
10078 | << FirstII << IsFirstBitField; | |||
10079 | ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(), | |||
10080 | FieldSingleBitField) | |||
10081 | << SecondII << IsSecondBitField; | |||
10082 | Diagnosed = true; | |||
10083 | break; | |||
10084 | } | |||
10085 | ||||
10086 | if (IsFirstBitField && IsSecondBitField) { | |||
10087 | ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(), | |||
10088 | FieldDifferentWidthBitField) | |||
10089 | << FirstII << FirstField->getBitWidth()->getSourceRange(); | |||
10090 | ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(), | |||
10091 | FieldDifferentWidthBitField) | |||
10092 | << SecondII << SecondField->getBitWidth()->getSourceRange(); | |||
10093 | Diagnosed = true; | |||
10094 | break; | |||
10095 | } | |||
10096 | ||||
10097 | const bool IsFirstMutable = FirstField->isMutable(); | |||
10098 | const bool IsSecondMutable = SecondField->isMutable(); | |||
10099 | if (IsFirstMutable != IsSecondMutable) { | |||
10100 | ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(), | |||
10101 | FieldSingleMutable) | |||
10102 | << FirstII << IsFirstMutable; | |||
10103 | ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(), | |||
10104 | FieldSingleMutable) | |||
10105 | << SecondII << IsSecondMutable; | |||
10106 | Diagnosed = true; | |||
10107 | break; | |||
10108 | } | |||
10109 | ||||
10110 | const Expr *FirstInitializer = FirstField->getInClassInitializer(); | |||
10111 | const Expr *SecondInitializer = SecondField->getInClassInitializer(); | |||
10112 | if ((!FirstInitializer && SecondInitializer) || | |||
10113 | (FirstInitializer && !SecondInitializer)) { | |||
10114 | ODRDiagError(FirstField->getLocation(), FirstField->getSourceRange(), | |||
10115 | FieldSingleInitializer) | |||
10116 | << FirstII << (FirstInitializer != nullptr); | |||
10117 | ODRDiagNote(SecondField->getLocation(), SecondField->getSourceRange(), | |||
10118 | FieldSingleInitializer) | |||
10119 | << SecondII << (SecondInitializer != nullptr); | |||
10120 | Diagnosed = true; | |||
10121 | break; | |||
10122 | } | |||
10123 | ||||
10124 | if (FirstInitializer && SecondInitializer) { | |||
10125 | unsigned FirstInitHash = ComputeODRHash(FirstInitializer); | |||
10126 | unsigned SecondInitHash = ComputeODRHash(SecondInitializer); | |||
10127 | if (FirstInitHash != SecondInitHash) { | |||
10128 | ODRDiagError(FirstField->getLocation(), | |||
10129 | FirstField->getSourceRange(), | |||
10130 | FieldDifferentInitializers) | |||
10131 | << FirstII << FirstInitializer->getSourceRange(); | |||
10132 | ODRDiagNote(SecondField->getLocation(), | |||
10133 | SecondField->getSourceRange(), | |||
10134 | FieldDifferentInitializers) | |||
10135 | << SecondII << SecondInitializer->getSourceRange(); | |||
10136 | Diagnosed = true; | |||
10137 | break; | |||
10138 | } | |||
10139 | } | |||
10140 | ||||
10141 | break; | |||
10142 | } | |||
10143 | case CXXMethod: { | |||
10144 | enum { | |||
10145 | DiagMethod, | |||
10146 | DiagConstructor, | |||
10147 | DiagDestructor, | |||
10148 | } FirstMethodType, | |||
10149 | SecondMethodType; | |||
10150 | auto GetMethodTypeForDiagnostics = [](const CXXMethodDecl* D) { | |||
10151 | if (isa<CXXConstructorDecl>(D)) return DiagConstructor; | |||
10152 | if (isa<CXXDestructorDecl>(D)) return DiagDestructor; | |||
10153 | return DiagMethod; | |||
10154 | }; | |||
10155 | const CXXMethodDecl *FirstMethod = cast<CXXMethodDecl>(FirstDecl); | |||
10156 | const CXXMethodDecl *SecondMethod = cast<CXXMethodDecl>(SecondDecl); | |||
10157 | FirstMethodType = GetMethodTypeForDiagnostics(FirstMethod); | |||
10158 | SecondMethodType = GetMethodTypeForDiagnostics(SecondMethod); | |||
10159 | auto FirstName = FirstMethod->getDeclName(); | |||
10160 | auto SecondName = SecondMethod->getDeclName(); | |||
10161 | if (FirstMethodType != SecondMethodType || FirstName != SecondName) { | |||
10162 | ODRDiagError(FirstMethod->getLocation(), | |||
10163 | FirstMethod->getSourceRange(), MethodName) | |||
10164 | << FirstMethodType << FirstName; | |||
10165 | ODRDiagNote(SecondMethod->getLocation(), | |||
10166 | SecondMethod->getSourceRange(), MethodName) | |||
10167 | << SecondMethodType << SecondName; | |||
10168 | ||||
10169 | Diagnosed = true; | |||
10170 | break; | |||
10171 | } | |||
10172 | ||||
10173 | const bool FirstDeleted = FirstMethod->isDeleted(); | |||
10174 | const bool SecondDeleted = SecondMethod->isDeleted(); | |||
10175 | if (FirstDeleted != SecondDeleted) { | |||
10176 | ODRDiagError(FirstMethod->getLocation(), | |||
10177 | FirstMethod->getSourceRange(), MethodDeleted) | |||
10178 | << FirstMethodType << FirstName << FirstDeleted; | |||
10179 | ||||
10180 | ODRDiagNote(SecondMethod->getLocation(), | |||
10181 | SecondMethod->getSourceRange(), MethodDeleted) | |||
10182 | << SecondMethodType << SecondName << SecondDeleted; | |||
10183 | Diagnosed = true; | |||
10184 | break; | |||
10185 | } | |||
10186 | ||||
10187 | const bool FirstVirtual = FirstMethod->isVirtualAsWritten(); | |||
10188 | const bool SecondVirtual = SecondMethod->isVirtualAsWritten(); | |||
10189 | const bool FirstPure = FirstMethod->isPure(); | |||
10190 | const bool SecondPure = SecondMethod->isPure(); | |||
10191 | if ((FirstVirtual || SecondVirtual) && | |||
10192 | (FirstVirtual != SecondVirtual || FirstPure != SecondPure)) { | |||
10193 | ODRDiagError(FirstMethod->getLocation(), | |||
10194 | FirstMethod->getSourceRange(), MethodVirtual) | |||
10195 | << FirstMethodType << FirstName << FirstPure << FirstVirtual; | |||
10196 | ODRDiagNote(SecondMethod->getLocation(), | |||
10197 | SecondMethod->getSourceRange(), MethodVirtual) | |||
10198 | << SecondMethodType << SecondName << SecondPure << SecondVirtual; | |||
10199 | Diagnosed = true; | |||
10200 | break; | |||
10201 | } | |||
10202 | ||||
10203 | // CXXMethodDecl::isStatic uses the canonical Decl. With Decl merging, | |||
10204 | // FirstDecl is the canonical Decl of SecondDecl, so the storage | |||
10205 | // class needs to be checked instead. | |||
10206 | const auto FirstStorage = FirstMethod->getStorageClass(); | |||
10207 | const auto SecondStorage = SecondMethod->getStorageClass(); | |||
10208 | const bool FirstStatic = FirstStorage == SC_Static; | |||
10209 | const bool SecondStatic = SecondStorage == SC_Static; | |||
10210 | if (FirstStatic != SecondStatic) { | |||
10211 | ODRDiagError(FirstMethod->getLocation(), | |||
10212 | FirstMethod->getSourceRange(), MethodStatic) | |||
10213 | << FirstMethodType << FirstName << FirstStatic; | |||
10214 | ODRDiagNote(SecondMethod->getLocation(), | |||
10215 | SecondMethod->getSourceRange(), MethodStatic) | |||
10216 | << SecondMethodType << SecondName << SecondStatic; | |||
10217 | Diagnosed = true; | |||
10218 | break; | |||
10219 | } | |||
10220 | ||||
10221 | const bool FirstVolatile = FirstMethod->isVolatile(); | |||
10222 | const bool SecondVolatile = SecondMethod->isVolatile(); | |||
10223 | if (FirstVolatile != SecondVolatile) { | |||
10224 | ODRDiagError(FirstMethod->getLocation(), | |||
10225 | FirstMethod->getSourceRange(), MethodVolatile) | |||
10226 | << FirstMethodType << FirstName << FirstVolatile; | |||
10227 | ODRDiagNote(SecondMethod->getLocation(), | |||
10228 | SecondMethod->getSourceRange(), MethodVolatile) | |||
10229 | << SecondMethodType << SecondName << SecondVolatile; | |||
10230 | Diagnosed = true; | |||
10231 | break; | |||
10232 | } | |||
10233 | ||||
10234 | const bool FirstConst = FirstMethod->isConst(); | |||
10235 | const bool SecondConst = SecondMethod->isConst(); | |||
10236 | if (FirstConst != SecondConst) { | |||
10237 | ODRDiagError(FirstMethod->getLocation(), | |||
10238 | FirstMethod->getSourceRange(), MethodConst) | |||
10239 | << FirstMethodType << FirstName << FirstConst; | |||
10240 | ODRDiagNote(SecondMethod->getLocation(), | |||
10241 | SecondMethod->getSourceRange(), MethodConst) | |||
10242 | << SecondMethodType << SecondName << SecondConst; | |||
10243 | Diagnosed = true; | |||
10244 | break; | |||
10245 | } | |||
10246 | ||||
10247 | const bool FirstInline = FirstMethod->isInlineSpecified(); | |||
10248 | const bool SecondInline = SecondMethod->isInlineSpecified(); | |||
10249 | if (FirstInline != SecondInline) { | |||
10250 | ODRDiagError(FirstMethod->getLocation(), | |||
10251 | FirstMethod->getSourceRange(), MethodInline) | |||
10252 | << FirstMethodType << FirstName << FirstInline; | |||
10253 | ODRDiagNote(SecondMethod->getLocation(), | |||
10254 | SecondMethod->getSourceRange(), MethodInline) | |||
10255 | << SecondMethodType << SecondName << SecondInline; | |||
10256 | Diagnosed = true; | |||
10257 | break; | |||
10258 | } | |||
10259 | ||||
10260 | const unsigned FirstNumParameters = FirstMethod->param_size(); | |||
10261 | const unsigned SecondNumParameters = SecondMethod->param_size(); | |||
10262 | if (FirstNumParameters != SecondNumParameters) { | |||
10263 | ODRDiagError(FirstMethod->getLocation(), | |||
10264 | FirstMethod->getSourceRange(), MethodNumberParameters) | |||
10265 | << FirstMethodType << FirstName << FirstNumParameters; | |||
10266 | ODRDiagNote(SecondMethod->getLocation(), | |||
10267 | SecondMethod->getSourceRange(), MethodNumberParameters) | |||
10268 | << SecondMethodType << SecondName << SecondNumParameters; | |||
10269 | Diagnosed = true; | |||
10270 | break; | |||
10271 | } | |||
10272 | ||||
10273 | // Need this status boolean to know when break out of the switch. | |||
10274 | bool ParameterMismatch = false; | |||
10275 | for (unsigned I = 0; I < FirstNumParameters; ++I) { | |||
10276 | const ParmVarDecl *FirstParam = FirstMethod->getParamDecl(I); | |||
10277 | const ParmVarDecl *SecondParam = SecondMethod->getParamDecl(I); | |||
10278 | ||||
10279 | QualType FirstParamType = FirstParam->getType(); | |||
10280 | QualType SecondParamType = SecondParam->getType(); | |||
10281 | if (FirstParamType != SecondParamType && | |||
10282 | ComputeQualTypeODRHash(FirstParamType) != | |||
10283 | ComputeQualTypeODRHash(SecondParamType)) { | |||
10284 | if (const DecayedType *ParamDecayedType = | |||
10285 | FirstParamType->getAs<DecayedType>()) { | |||
10286 | ODRDiagError(FirstMethod->getLocation(), | |||
10287 | FirstMethod->getSourceRange(), MethodParameterType) | |||
10288 | << FirstMethodType << FirstName << (I + 1) << FirstParamType | |||
10289 | << true << ParamDecayedType->getOriginalType(); | |||
10290 | } else { | |||
10291 | ODRDiagError(FirstMethod->getLocation(), | |||
10292 | FirstMethod->getSourceRange(), MethodParameterType) | |||
10293 | << FirstMethodType << FirstName << (I + 1) << FirstParamType | |||
10294 | << false; | |||
10295 | } | |||
10296 | ||||
10297 | if (const DecayedType *ParamDecayedType = | |||
10298 | SecondParamType->getAs<DecayedType>()) { | |||
10299 | ODRDiagNote(SecondMethod->getLocation(), | |||
10300 | SecondMethod->getSourceRange(), MethodParameterType) | |||
10301 | << SecondMethodType << SecondName << (I + 1) | |||
10302 | << SecondParamType << true | |||
10303 | << ParamDecayedType->getOriginalType(); | |||
10304 | } else { | |||
10305 | ODRDiagNote(SecondMethod->getLocation(), | |||
10306 | SecondMethod->getSourceRange(), MethodParameterType) | |||
10307 | << SecondMethodType << SecondName << (I + 1) | |||
10308 | << SecondParamType << false; | |||
10309 | } | |||
10310 | ParameterMismatch = true; | |||
10311 | break; | |||
10312 | } | |||
10313 | ||||
10314 | DeclarationName FirstParamName = FirstParam->getDeclName(); | |||
10315 | DeclarationName SecondParamName = SecondParam->getDeclName(); | |||
10316 | if (FirstParamName != SecondParamName) { | |||
10317 | ODRDiagError(FirstMethod->getLocation(), | |||
10318 | FirstMethod->getSourceRange(), MethodParameterName) | |||
10319 | << FirstMethodType << FirstName << (I + 1) << FirstParamName; | |||
10320 | ODRDiagNote(SecondMethod->getLocation(), | |||
10321 | SecondMethod->getSourceRange(), MethodParameterName) | |||
10322 | << SecondMethodType << SecondName << (I + 1) << SecondParamName; | |||
10323 | ParameterMismatch = true; | |||
10324 | break; | |||
10325 | } | |||
10326 | ||||
10327 | const Expr *FirstInit = FirstParam->getInit(); | |||
10328 | const Expr *SecondInit = SecondParam->getInit(); | |||
10329 | if ((FirstInit == nullptr) != (SecondInit == nullptr)) { | |||
10330 | ODRDiagError(FirstMethod->getLocation(), | |||
10331 | FirstMethod->getSourceRange(), | |||
10332 | MethodParameterSingleDefaultArgument) | |||
10333 | << FirstMethodType << FirstName << (I + 1) | |||
10334 | << (FirstInit == nullptr) | |||
10335 | << (FirstInit ? FirstInit->getSourceRange() : SourceRange()); | |||
10336 | ODRDiagNote(SecondMethod->getLocation(), | |||
10337 | SecondMethod->getSourceRange(), | |||
10338 | MethodParameterSingleDefaultArgument) | |||
10339 | << SecondMethodType << SecondName << (I + 1) | |||
10340 | << (SecondInit == nullptr) | |||
10341 | << (SecondInit ? SecondInit->getSourceRange() : SourceRange()); | |||
10342 | ParameterMismatch = true; | |||
10343 | break; | |||
10344 | } | |||
10345 | ||||
10346 | if (FirstInit && SecondInit && | |||
10347 | ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) { | |||
10348 | ODRDiagError(FirstMethod->getLocation(), | |||
10349 | FirstMethod->getSourceRange(), | |||
10350 | MethodParameterDifferentDefaultArgument) | |||
10351 | << FirstMethodType << FirstName << (I + 1) | |||
10352 | << FirstInit->getSourceRange(); | |||
10353 | ODRDiagNote(SecondMethod->getLocation(), | |||
10354 | SecondMethod->getSourceRange(), | |||
10355 | MethodParameterDifferentDefaultArgument) | |||
10356 | << SecondMethodType << SecondName << (I + 1) | |||
10357 | << SecondInit->getSourceRange(); | |||
10358 | ParameterMismatch = true; | |||
10359 | break; | |||
10360 | ||||
10361 | } | |||
10362 | } | |||
10363 | ||||
10364 | if (ParameterMismatch) { | |||
10365 | Diagnosed = true; | |||
10366 | break; | |||
10367 | } | |||
10368 | ||||
10369 | break; | |||
10370 | } | |||
10371 | case TypeAlias: | |||
10372 | case TypeDef: { | |||
10373 | TypedefNameDecl *FirstTD = cast<TypedefNameDecl>(FirstDecl); | |||
10374 | TypedefNameDecl *SecondTD = cast<TypedefNameDecl>(SecondDecl); | |||
10375 | auto FirstName = FirstTD->getDeclName(); | |||
10376 | auto SecondName = SecondTD->getDeclName(); | |||
10377 | if (FirstName != SecondName) { | |||
10378 | ODRDiagError(FirstTD->getLocation(), FirstTD->getSourceRange(), | |||
10379 | TypedefName) | |||
10380 | << (FirstDiffType == TypeAlias) << FirstName; | |||
10381 | ODRDiagNote(SecondTD->getLocation(), SecondTD->getSourceRange(), | |||
10382 | TypedefName) | |||
10383 | << (FirstDiffType == TypeAlias) << SecondName; | |||
10384 | Diagnosed = true; | |||
10385 | break; | |||
10386 | } | |||
10387 | ||||
10388 | QualType FirstType = FirstTD->getUnderlyingType(); | |||
10389 | QualType SecondType = SecondTD->getUnderlyingType(); | |||
10390 | if (ComputeQualTypeODRHash(FirstType) != | |||
10391 | ComputeQualTypeODRHash(SecondType)) { | |||
10392 | ODRDiagError(FirstTD->getLocation(), FirstTD->getSourceRange(), | |||
10393 | TypedefType) | |||
10394 | << (FirstDiffType == TypeAlias) << FirstName << FirstType; | |||
10395 | ODRDiagNote(SecondTD->getLocation(), SecondTD->getSourceRange(), | |||
10396 | TypedefType) | |||
10397 | << (FirstDiffType == TypeAlias) << SecondName << SecondType; | |||
10398 | Diagnosed = true; | |||
10399 | break; | |||
10400 | } | |||
10401 | break; | |||
10402 | } | |||
10403 | case Var: { | |||
10404 | VarDecl *FirstVD = cast<VarDecl>(FirstDecl); | |||
10405 | VarDecl *SecondVD = cast<VarDecl>(SecondDecl); | |||
10406 | auto FirstName = FirstVD->getDeclName(); | |||
10407 | auto SecondName = SecondVD->getDeclName(); | |||
10408 | if (FirstName != SecondName) { | |||
10409 | ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(), | |||
10410 | VarName) | |||
10411 | << FirstName; | |||
10412 | ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(), | |||
10413 | VarName) | |||
10414 | << SecondName; | |||
10415 | Diagnosed = true; | |||
10416 | break; | |||
10417 | } | |||
10418 | ||||
10419 | QualType FirstType = FirstVD->getType(); | |||
10420 | QualType SecondType = SecondVD->getType(); | |||
10421 | if (ComputeQualTypeODRHash(FirstType) != | |||
10422 | ComputeQualTypeODRHash(SecondType)) { | |||
10423 | ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(), | |||
10424 | VarType) | |||
10425 | << FirstName << FirstType; | |||
10426 | ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(), | |||
10427 | VarType) | |||
10428 | << SecondName << SecondType; | |||
10429 | Diagnosed = true; | |||
10430 | break; | |||
10431 | } | |||
10432 | ||||
10433 | const Expr *FirstInit = FirstVD->getInit(); | |||
10434 | const Expr *SecondInit = SecondVD->getInit(); | |||
10435 | if ((FirstInit == nullptr) != (SecondInit == nullptr)) { | |||
10436 | ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(), | |||
10437 | VarSingleInitializer) | |||
10438 | << FirstName << (FirstInit == nullptr) | |||
10439 | << (FirstInit ? FirstInit->getSourceRange(): SourceRange()); | |||
10440 | ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(), | |||
10441 | VarSingleInitializer) | |||
10442 | << SecondName << (SecondInit == nullptr) | |||
10443 | << (SecondInit ? SecondInit->getSourceRange() : SourceRange()); | |||
10444 | Diagnosed = true; | |||
10445 | break; | |||
10446 | } | |||
10447 | ||||
10448 | if (FirstInit && SecondInit && | |||
10449 | ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) { | |||
10450 | ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(), | |||
10451 | VarDifferentInitializer) | |||
10452 | << FirstName << FirstInit->getSourceRange(); | |||
10453 | ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(), | |||
10454 | VarDifferentInitializer) | |||
10455 | << SecondName << SecondInit->getSourceRange(); | |||
10456 | Diagnosed = true; | |||
10457 | break; | |||
10458 | } | |||
10459 | ||||
10460 | const bool FirstIsConstexpr = FirstVD->isConstexpr(); | |||
10461 | const bool SecondIsConstexpr = SecondVD->isConstexpr(); | |||
10462 | if (FirstIsConstexpr != SecondIsConstexpr) { | |||
10463 | ODRDiagError(FirstVD->getLocation(), FirstVD->getSourceRange(), | |||
10464 | VarConstexpr) | |||
10465 | << FirstName << FirstIsConstexpr; | |||
10466 | ODRDiagNote(SecondVD->getLocation(), SecondVD->getSourceRange(), | |||
10467 | VarConstexpr) | |||
10468 | << SecondName << SecondIsConstexpr; | |||
10469 | Diagnosed = true; | |||
10470 | break; | |||
10471 | } | |||
10472 | break; | |||
10473 | } | |||
10474 | case Friend: { | |||
10475 | FriendDecl *FirstFriend = cast<FriendDecl>(FirstDecl); | |||
10476 | FriendDecl *SecondFriend = cast<FriendDecl>(SecondDecl); | |||
10477 | ||||
10478 | NamedDecl *FirstND = FirstFriend->getFriendDecl(); | |||
10479 | NamedDecl *SecondND = SecondFriend->getFriendDecl(); | |||
10480 | ||||
10481 | TypeSourceInfo *FirstTSI = FirstFriend->getFriendType(); | |||
10482 | TypeSourceInfo *SecondTSI = SecondFriend->getFriendType(); | |||
10483 | ||||
10484 | if (FirstND && SecondND) { | |||
10485 | ODRDiagError(FirstFriend->getFriendLoc(), | |||
10486 | FirstFriend->getSourceRange(), FriendFunction) | |||
10487 | << FirstND; | |||
10488 | ODRDiagNote(SecondFriend->getFriendLoc(), | |||
10489 | SecondFriend->getSourceRange(), FriendFunction) | |||
10490 | << SecondND; | |||
10491 | ||||
10492 | Diagnosed = true; | |||
10493 | break; | |||
10494 | } | |||
10495 | ||||
10496 | if (FirstTSI && SecondTSI) { | |||
10497 | QualType FirstFriendType = FirstTSI->getType(); | |||
10498 | QualType SecondFriendType = SecondTSI->getType(); | |||
10499 | assert(ComputeQualTypeODRHash(FirstFriendType) !=(static_cast <bool> (ComputeQualTypeODRHash(FirstFriendType ) != ComputeQualTypeODRHash(SecondFriendType)) ? void (0) : __assert_fail ("ComputeQualTypeODRHash(FirstFriendType) != ComputeQualTypeODRHash(SecondFriendType)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10500, __extension__ __PRETTY_FUNCTION__)) | |||
10500 | ComputeQualTypeODRHash(SecondFriendType))(static_cast <bool> (ComputeQualTypeODRHash(FirstFriendType ) != ComputeQualTypeODRHash(SecondFriendType)) ? void (0) : __assert_fail ("ComputeQualTypeODRHash(FirstFriendType) != ComputeQualTypeODRHash(SecondFriendType)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10500, __extension__ __PRETTY_FUNCTION__)); | |||
10501 | ODRDiagError(FirstFriend->getFriendLoc(), | |||
10502 | FirstFriend->getSourceRange(), FriendType) | |||
10503 | << FirstFriendType; | |||
10504 | ODRDiagNote(SecondFriend->getFriendLoc(), | |||
10505 | SecondFriend->getSourceRange(), FriendType) | |||
10506 | << SecondFriendType; | |||
10507 | Diagnosed = true; | |||
10508 | break; | |||
10509 | } | |||
10510 | ||||
10511 | ODRDiagError(FirstFriend->getFriendLoc(), FirstFriend->getSourceRange(), | |||
10512 | FriendTypeFunction) | |||
10513 | << (FirstTSI == nullptr); | |||
10514 | ODRDiagNote(SecondFriend->getFriendLoc(), | |||
10515 | SecondFriend->getSourceRange(), FriendTypeFunction) | |||
10516 | << (SecondTSI == nullptr); | |||
10517 | ||||
10518 | Diagnosed = true; | |||
10519 | break; | |||
10520 | } | |||
10521 | } | |||
10522 | ||||
10523 | if (Diagnosed) | |||
10524 | continue; | |||
10525 | ||||
10526 | Diag(FirstDecl->getLocation(), | |||
10527 | diag::err_module_odr_violation_mismatch_decl_unknown) | |||
10528 | << FirstRecord << FirstModule.empty() << FirstModule << FirstDiffType | |||
10529 | << FirstDecl->getSourceRange(); | |||
10530 | Diag(SecondDecl->getLocation(), | |||
10531 | diag::note_module_odr_violation_mismatch_decl_unknown) | |||
10532 | << SecondModule << FirstDiffType << SecondDecl->getSourceRange(); | |||
10533 | Diagnosed = true; | |||
10534 | } | |||
10535 | ||||
10536 | if (!Diagnosed) { | |||
10537 | // All definitions are updates to the same declaration. This happens if a | |||
10538 | // module instantiates the declaration of a class template specialization | |||
10539 | // and two or more other modules instantiate its definition. | |||
10540 | // | |||
10541 | // FIXME: Indicate which modules had instantiations of this definition. | |||
10542 | // FIXME: How can this even happen? | |||
10543 | Diag(Merge.first->getLocation(), | |||
10544 | diag::err_module_odr_violation_different_instantiations) | |||
10545 | << Merge.first; | |||
10546 | } | |||
10547 | } | |||
10548 | ||||
10549 | // Issue ODR failures diagnostics for functions. | |||
10550 | for (auto &Merge : FunctionOdrMergeFailures) { | |||
10551 | enum ODRFunctionDifference { | |||
10552 | ReturnType, | |||
10553 | ParameterName, | |||
10554 | ParameterType, | |||
10555 | ParameterSingleDefaultArgument, | |||
10556 | ParameterDifferentDefaultArgument, | |||
10557 | FunctionBody, | |||
10558 | }; | |||
10559 | ||||
10560 | FunctionDecl *FirstFunction = Merge.first; | |||
10561 | std::string FirstModule = getOwningModuleNameForDiagnostic(FirstFunction); | |||
10562 | ||||
10563 | bool Diagnosed = false; | |||
10564 | for (auto &SecondFunction : Merge.second) { | |||
10565 | ||||
10566 | if (FirstFunction == SecondFunction) | |||
10567 | continue; | |||
10568 | ||||
10569 | std::string SecondModule = | |||
10570 | getOwningModuleNameForDiagnostic(SecondFunction); | |||
10571 | ||||
10572 | auto ODRDiagError = [FirstFunction, &FirstModule, | |||
10573 | this](SourceLocation Loc, SourceRange Range, | |||
10574 | ODRFunctionDifference DiffType) { | |||
10575 | return Diag(Loc, diag::err_module_odr_violation_function) | |||
10576 | << FirstFunction << FirstModule.empty() << FirstModule << Range | |||
10577 | << DiffType; | |||
10578 | }; | |||
10579 | auto ODRDiagNote = [&SecondModule, this](SourceLocation Loc, | |||
10580 | SourceRange Range, | |||
10581 | ODRFunctionDifference DiffType) { | |||
10582 | return Diag(Loc, diag::note_module_odr_violation_function) | |||
10583 | << SecondModule << Range << DiffType; | |||
10584 | }; | |||
10585 | ||||
10586 | if (ComputeQualTypeODRHash(FirstFunction->getReturnType()) != | |||
10587 | ComputeQualTypeODRHash(SecondFunction->getReturnType())) { | |||
10588 | ODRDiagError(FirstFunction->getReturnTypeSourceRange().getBegin(), | |||
10589 | FirstFunction->getReturnTypeSourceRange(), ReturnType) | |||
10590 | << FirstFunction->getReturnType(); | |||
10591 | ODRDiagNote(SecondFunction->getReturnTypeSourceRange().getBegin(), | |||
10592 | SecondFunction->getReturnTypeSourceRange(), ReturnType) | |||
10593 | << SecondFunction->getReturnType(); | |||
10594 | Diagnosed = true; | |||
10595 | break; | |||
10596 | } | |||
10597 | ||||
10598 | assert(FirstFunction->param_size() == SecondFunction->param_size() &&(static_cast <bool> (FirstFunction->param_size() == SecondFunction ->param_size() && "Merged functions with different number of parameters" ) ? void (0) : __assert_fail ("FirstFunction->param_size() == SecondFunction->param_size() && \"Merged functions with different number of parameters\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10599, __extension__ __PRETTY_FUNCTION__)) | |||
10599 | "Merged functions with different number of parameters")(static_cast <bool> (FirstFunction->param_size() == SecondFunction ->param_size() && "Merged functions with different number of parameters" ) ? void (0) : __assert_fail ("FirstFunction->param_size() == SecondFunction->param_size() && \"Merged functions with different number of parameters\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10599, __extension__ __PRETTY_FUNCTION__)); | |||
10600 | ||||
10601 | auto ParamSize = FirstFunction->param_size(); | |||
10602 | bool ParameterMismatch = false; | |||
10603 | for (unsigned I = 0; I < ParamSize; ++I) { | |||
10604 | auto *FirstParam = FirstFunction->getParamDecl(I); | |||
10605 | auto *SecondParam = SecondFunction->getParamDecl(I); | |||
10606 | ||||
10607 | assert(getContext().hasSameType(FirstParam->getType(),(static_cast <bool> (getContext().hasSameType(FirstParam ->getType(), SecondParam->getType()) && "Merged function has different parameter types." ) ? void (0) : __assert_fail ("getContext().hasSameType(FirstParam->getType(), SecondParam->getType()) && \"Merged function has different parameter types.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10609, __extension__ __PRETTY_FUNCTION__)) | |||
10608 | SecondParam->getType()) &&(static_cast <bool> (getContext().hasSameType(FirstParam ->getType(), SecondParam->getType()) && "Merged function has different parameter types." ) ? void (0) : __assert_fail ("getContext().hasSameType(FirstParam->getType(), SecondParam->getType()) && \"Merged function has different parameter types.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10609, __extension__ __PRETTY_FUNCTION__)) | |||
10609 | "Merged function has different parameter types.")(static_cast <bool> (getContext().hasSameType(FirstParam ->getType(), SecondParam->getType()) && "Merged function has different parameter types." ) ? void (0) : __assert_fail ("getContext().hasSameType(FirstParam->getType(), SecondParam->getType()) && \"Merged function has different parameter types.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10609, __extension__ __PRETTY_FUNCTION__)); | |||
10610 | ||||
10611 | if (FirstParam->getDeclName() != SecondParam->getDeclName()) { | |||
10612 | ODRDiagError(FirstParam->getLocation(), FirstParam->getSourceRange(), | |||
10613 | ParameterName) | |||
10614 | << I + 1 << FirstParam->getDeclName(); | |||
10615 | ODRDiagNote(SecondParam->getLocation(), SecondParam->getSourceRange(), | |||
10616 | ParameterName) | |||
10617 | << I + 1 << SecondParam->getDeclName(); | |||
10618 | ParameterMismatch = true; | |||
10619 | break; | |||
10620 | }; | |||
10621 | ||||
10622 | QualType FirstParamType = FirstParam->getType(); | |||
10623 | QualType SecondParamType = SecondParam->getType(); | |||
10624 | if (FirstParamType != SecondParamType && | |||
10625 | ComputeQualTypeODRHash(FirstParamType) != | |||
10626 | ComputeQualTypeODRHash(SecondParamType)) { | |||
10627 | if (const DecayedType *ParamDecayedType = | |||
10628 | FirstParamType->getAs<DecayedType>()) { | |||
10629 | ODRDiagError(FirstParam->getLocation(), | |||
10630 | FirstParam->getSourceRange(), ParameterType) | |||
10631 | << (I + 1) << FirstParamType << true | |||
10632 | << ParamDecayedType->getOriginalType(); | |||
10633 | } else { | |||
10634 | ODRDiagError(FirstParam->getLocation(), | |||
10635 | FirstParam->getSourceRange(), ParameterType) | |||
10636 | << (I + 1) << FirstParamType << false; | |||
10637 | } | |||
10638 | ||||
10639 | if (const DecayedType *ParamDecayedType = | |||
10640 | SecondParamType->getAs<DecayedType>()) { | |||
10641 | ODRDiagNote(SecondParam->getLocation(), | |||
10642 | SecondParam->getSourceRange(), ParameterType) | |||
10643 | << (I + 1) << SecondParamType << true | |||
10644 | << ParamDecayedType->getOriginalType(); | |||
10645 | } else { | |||
10646 | ODRDiagNote(SecondParam->getLocation(), | |||
10647 | SecondParam->getSourceRange(), ParameterType) | |||
10648 | << (I + 1) << SecondParamType << false; | |||
10649 | } | |||
10650 | ParameterMismatch = true; | |||
10651 | break; | |||
10652 | } | |||
10653 | ||||
10654 | const Expr *FirstInit = FirstParam->getInit(); | |||
10655 | const Expr *SecondInit = SecondParam->getInit(); | |||
10656 | if ((FirstInit == nullptr) != (SecondInit == nullptr)) { | |||
10657 | ODRDiagError(FirstParam->getLocation(), FirstParam->getSourceRange(), | |||
10658 | ParameterSingleDefaultArgument) | |||
10659 | << (I + 1) << (FirstInit == nullptr) | |||
10660 | << (FirstInit ? FirstInit->getSourceRange() : SourceRange()); | |||
10661 | ODRDiagNote(SecondParam->getLocation(), SecondParam->getSourceRange(), | |||
10662 | ParameterSingleDefaultArgument) | |||
10663 | << (I + 1) << (SecondInit == nullptr) | |||
10664 | << (SecondInit ? SecondInit->getSourceRange() : SourceRange()); | |||
10665 | ParameterMismatch = true; | |||
10666 | break; | |||
10667 | } | |||
10668 | ||||
10669 | if (FirstInit && SecondInit && | |||
10670 | ComputeODRHash(FirstInit) != ComputeODRHash(SecondInit)) { | |||
10671 | ODRDiagError(FirstParam->getLocation(), FirstParam->getSourceRange(), | |||
10672 | ParameterDifferentDefaultArgument) | |||
10673 | << (I + 1) << FirstInit->getSourceRange(); | |||
10674 | ODRDiagNote(SecondParam->getLocation(), SecondParam->getSourceRange(), | |||
10675 | ParameterDifferentDefaultArgument) | |||
10676 | << (I + 1) << SecondInit->getSourceRange(); | |||
10677 | ParameterMismatch = true; | |||
10678 | break; | |||
10679 | } | |||
10680 | ||||
10681 | assert(ComputeSubDeclODRHash(FirstParam) ==(static_cast <bool> (ComputeSubDeclODRHash(FirstParam) == ComputeSubDeclODRHash(SecondParam) && "Undiagnosed parameter difference." ) ? void (0) : __assert_fail ("ComputeSubDeclODRHash(FirstParam) == ComputeSubDeclODRHash(SecondParam) && \"Undiagnosed parameter difference.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10683, __extension__ __PRETTY_FUNCTION__)) | |||
10682 | ComputeSubDeclODRHash(SecondParam) &&(static_cast <bool> (ComputeSubDeclODRHash(FirstParam) == ComputeSubDeclODRHash(SecondParam) && "Undiagnosed parameter difference." ) ? void (0) : __assert_fail ("ComputeSubDeclODRHash(FirstParam) == ComputeSubDeclODRHash(SecondParam) && \"Undiagnosed parameter difference.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10683, __extension__ __PRETTY_FUNCTION__)) | |||
10683 | "Undiagnosed parameter difference.")(static_cast <bool> (ComputeSubDeclODRHash(FirstParam) == ComputeSubDeclODRHash(SecondParam) && "Undiagnosed parameter difference." ) ? void (0) : __assert_fail ("ComputeSubDeclODRHash(FirstParam) == ComputeSubDeclODRHash(SecondParam) && \"Undiagnosed parameter difference.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10683, __extension__ __PRETTY_FUNCTION__)); | |||
10684 | } | |||
10685 | ||||
10686 | if (ParameterMismatch) { | |||
10687 | Diagnosed = true; | |||
10688 | break; | |||
10689 | } | |||
10690 | ||||
10691 | // If no error has been generated before now, assume the problem is in | |||
10692 | // the body and generate a message. | |||
10693 | ODRDiagError(FirstFunction->getLocation(), | |||
10694 | FirstFunction->getSourceRange(), FunctionBody); | |||
10695 | ODRDiagNote(SecondFunction->getLocation(), | |||
10696 | SecondFunction->getSourceRange(), FunctionBody); | |||
10697 | Diagnosed = true; | |||
10698 | break; | |||
10699 | } | |||
10700 | (void)Diagnosed; | |||
10701 | assert(Diagnosed && "Unable to emit ODR diagnostic.")(static_cast <bool> (Diagnosed && "Unable to emit ODR diagnostic." ) ? void (0) : __assert_fail ("Diagnosed && \"Unable to emit ODR diagnostic.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10701, __extension__ __PRETTY_FUNCTION__)); | |||
10702 | } | |||
10703 | } | |||
10704 | ||||
10705 | void ASTReader::StartedDeserializing() { | |||
10706 | if (++NumCurrentElementsDeserializing == 1 && ReadTimer.get()) | |||
10707 | ReadTimer->startTimer(); | |||
10708 | } | |||
10709 | ||||
10710 | void ASTReader::FinishedDeserializing() { | |||
10711 | assert(NumCurrentElementsDeserializing &&(static_cast <bool> (NumCurrentElementsDeserializing && "FinishedDeserializing not paired with StartedDeserializing" ) ? void (0) : __assert_fail ("NumCurrentElementsDeserializing && \"FinishedDeserializing not paired with StartedDeserializing\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10712, __extension__ __PRETTY_FUNCTION__)) | |||
10712 | "FinishedDeserializing not paired with StartedDeserializing")(static_cast <bool> (NumCurrentElementsDeserializing && "FinishedDeserializing not paired with StartedDeserializing" ) ? void (0) : __assert_fail ("NumCurrentElementsDeserializing && \"FinishedDeserializing not paired with StartedDeserializing\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Serialization/ASTReader.cpp" , 10712, __extension__ __PRETTY_FUNCTION__)); | |||
10713 | if (NumCurrentElementsDeserializing == 1) { | |||
10714 | // We decrease NumCurrentElementsDeserializing only after pending actions | |||
10715 | // are finished, to avoid recursively re-calling finishPendingActions(). | |||
10716 | finishPendingActions(); | |||
10717 | } | |||
10718 | --NumCurrentElementsDeserializing; | |||
10719 | ||||
10720 | if (NumCurrentElementsDeserializing == 0) { | |||
10721 | // Propagate exception specification updates along redeclaration chains. | |||
10722 | while (!PendingExceptionSpecUpdates.empty()) { | |||
10723 | auto Updates = std::move(PendingExceptionSpecUpdates); | |||
10724 | PendingExceptionSpecUpdates.clear(); | |||
10725 | for (auto Update : Updates) { | |||
10726 | ProcessingUpdatesRAIIObj ProcessingUpdates(*this); | |||
10727 | auto *FPT = Update.second->getType()->castAs<FunctionProtoType>(); | |||
10728 | auto ESI = FPT->getExtProtoInfo().ExceptionSpec; | |||
10729 | if (auto *Listener = getContext().getASTMutationListener()) | |||
10730 | Listener->ResolvedExceptionSpec(cast<FunctionDecl>(Update.second)); | |||
10731 | for (auto *Redecl : Update.second->redecls()) | |||
10732 | getContext().adjustExceptionSpec(cast<FunctionDecl>(Redecl), ESI); | |||
10733 | } | |||
10734 | } | |||
10735 | ||||
10736 | if (ReadTimer) | |||
10737 | ReadTimer->stopTimer(); | |||
10738 | ||||
10739 | diagnoseOdrViolations(); | |||
10740 | ||||
10741 | // We are not in recursive loading, so it's safe to pass the "interesting" | |||
10742 | // decls to the consumer. | |||
10743 | if (Consumer) | |||
10744 | PassInterestingDeclsToConsumer(); | |||
10745 | } | |||
10746 | } | |||
10747 | ||||
10748 | void ASTReader::pushExternalDeclIntoScope(NamedDecl *D, DeclarationName Name) { | |||
10749 | if (IdentifierInfo *II = Name.getAsIdentifierInfo()) { | |||
10750 | // Remove any fake results before adding any real ones. | |||
10751 | auto It = PendingFakeLookupResults.find(II); | |||
10752 | if (It != PendingFakeLookupResults.end()) { | |||
10753 | for (auto *ND : It->second) | |||
10754 | SemaObj->IdResolver.RemoveDecl(ND); | |||
10755 | // FIXME: this works around module+PCH performance issue. | |||
10756 | // Rather than erase the result from the map, which is O(n), just clear | |||
10757 | // the vector of NamedDecls. | |||
10758 | It->second.clear(); | |||
10759 | } | |||
10760 | } | |||
10761 | ||||
10762 | if (SemaObj->IdResolver.tryAddTopLevelDecl(D, Name) && SemaObj->TUScope) { | |||
10763 | SemaObj->TUScope->AddDecl(D); | |||
10764 | } else if (SemaObj->TUScope) { | |||
10765 | // Adding the decl to IdResolver may have failed because it was already in | |||
10766 | // (even though it was not added in scope). If it is already in, make sure | |||
10767 | // it gets in the scope as well. | |||
10768 | if (std::find(SemaObj->IdResolver.begin(Name), | |||
10769 | SemaObj->IdResolver.end(), D) != SemaObj->IdResolver.end()) | |||
10770 | SemaObj->TUScope->AddDecl(D); | |||
10771 | } | |||
10772 | } | |||
10773 | ||||
10774 | ASTReader::ASTReader(Preprocessor &PP, ASTContext *Context, | |||
10775 | const PCHContainerReader &PCHContainerRdr, | |||
10776 | ArrayRef<std::shared_ptr<ModuleFileExtension>> Extensions, | |||
10777 | StringRef isysroot, bool DisableValidation, | |||
10778 | bool AllowASTWithCompilerErrors, | |||
10779 | bool AllowConfigurationMismatch, bool ValidateSystemInputs, | |||
10780 | bool UseGlobalIndex, | |||
10781 | std::unique_ptr<llvm::Timer> ReadTimer) | |||
10782 | : Listener(DisableValidation | |||
10783 | ? cast<ASTReaderListener>(new SimpleASTReaderListener(PP)) | |||
10784 | : cast<ASTReaderListener>(new PCHValidator(PP, *this))), | |||
10785 | SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()), | |||
10786 | PCHContainerRdr(PCHContainerRdr), Diags(PP.getDiagnostics()), PP(PP), | |||
10787 | ContextObj(Context), | |||
10788 | ModuleMgr(PP.getFileManager(), PP.getPCMCache(), PCHContainerRdr, | |||
10789 | PP.getHeaderSearchInfo()), | |||
10790 | PCMCache(PP.getPCMCache()), DummyIdResolver(PP), | |||
10791 | ReadTimer(std::move(ReadTimer)), isysroot(isysroot), | |||
10792 | DisableValidation(DisableValidation), | |||
10793 | AllowASTWithCompilerErrors(AllowASTWithCompilerErrors), | |||
10794 | AllowConfigurationMismatch(AllowConfigurationMismatch), | |||
10795 | ValidateSystemInputs(ValidateSystemInputs), | |||
10796 | UseGlobalIndex(UseGlobalIndex), CurrSwitchCaseStmts(&SwitchCaseStmts) { | |||
10797 | SourceMgr.setExternalSLocEntrySource(this); | |||
10798 | ||||
10799 | for (const auto &Ext : Extensions) { | |||
10800 | auto BlockName = Ext->getExtensionMetadata().BlockName; | |||
10801 | auto Known = ModuleFileExtensions.find(BlockName); | |||
10802 | if (Known != ModuleFileExtensions.end()) { | |||
10803 | Diags.Report(diag::warn_duplicate_module_file_extension) | |||
10804 | << BlockName; | |||
10805 | continue; | |||
10806 | } | |||
10807 | ||||
10808 | ModuleFileExtensions.insert({BlockName, Ext}); | |||
10809 | } | |||
10810 | } | |||
10811 | ||||
10812 | ASTReader::~ASTReader() { | |||
10813 | if (OwnsDeserializationListener) | |||
10814 | delete DeserializationListener; | |||
10815 | } | |||
10816 | ||||
10817 | IdentifierResolver &ASTReader::getIdResolver() { | |||
10818 | return SemaObj ? SemaObj->IdResolver : DummyIdResolver; | |||
10819 | } | |||
10820 | ||||
10821 | unsigned ASTRecordReader::readRecord(llvm::BitstreamCursor &Cursor, | |||
10822 | unsigned AbbrevID) { | |||
10823 | Idx = 0; | |||
10824 | Record.clear(); | |||
10825 | return Cursor.readRecord(AbbrevID, Record); | |||
10826 | } |
1 | //===- MultiOnDiskHashTable.h - Merged set of hash tables -------*- C++ -*-===// |
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 provides a hash table data structure suitable for incremental and |
11 | // distributed storage across a set of files. |
12 | // |
13 | // Multiple hash tables from different files are implicitly merged to improve |
14 | // performance, and on reload the merged table will override those from other |
15 | // files. |
16 | // |
17 | //===----------------------------------------------------------------------===// |
18 | |
19 | #ifndef LLVM_CLANG_LIB_SERIALIZATION_MULTIONDISKHASHTABLE_H |
20 | #define LLVM_CLANG_LIB_SERIALIZATION_MULTIONDISKHASHTABLE_H |
21 | |
22 | #include "llvm/ADT/DenseMap.h" |
23 | #include "llvm/ADT/DenseSet.h" |
24 | #include "llvm/ADT/PointerUnion.h" |
25 | #include "llvm/ADT/STLExtras.h" |
26 | #include "llvm/ADT/SmallVector.h" |
27 | #include "llvm/ADT/TinyPtrVector.h" |
28 | #include "llvm/ADT/iterator_range.h" |
29 | #include "llvm/Support/Endian.h" |
30 | #include "llvm/Support/EndianStream.h" |
31 | #include "llvm/Support/OnDiskHashTable.h" |
32 | #include "llvm/Support/raw_ostream.h" |
33 | #include <algorithm> |
34 | #include <cstdint> |
35 | #include <vector> |
36 | |
37 | namespace clang { |
38 | namespace serialization { |
39 | |
40 | /// \brief A collection of on-disk hash tables, merged when relevant for performance. |
41 | template<typename Info> class MultiOnDiskHashTable { |
42 | public: |
43 | /// A handle to a file, used when overriding tables. |
44 | using file_type = typename Info::file_type; |
45 | |
46 | /// A pointer to an on-disk representation of the hash table. |
47 | using storage_type = const unsigned char *; |
48 | |
49 | using external_key_type = typename Info::external_key_type; |
50 | using internal_key_type = typename Info::internal_key_type; |
51 | using data_type = typename Info::data_type; |
52 | using data_type_builder = typename Info::data_type_builder; |
53 | using hash_value_type = unsigned; |
54 | |
55 | private: |
56 | /// The generator is permitted to read our merged table. |
57 | template<typename ReaderInfo, typename WriterInfo> |
58 | friend class MultiOnDiskHashTableGenerator; |
59 | |
60 | /// \brief A hash table stored on disk. |
61 | struct OnDiskTable { |
62 | using HashTable = llvm::OnDiskIterableChainedHashTable<Info>; |
63 | |
64 | file_type File; |
65 | HashTable Table; |
66 | |
67 | OnDiskTable(file_type File, unsigned NumBuckets, unsigned NumEntries, |
68 | storage_type Buckets, storage_type Payload, storage_type Base, |
69 | const Info &InfoObj) |
70 | : File(File), |
71 | Table(NumBuckets, NumEntries, Buckets, Payload, Base, InfoObj) {} |
72 | }; |
73 | |
74 | struct MergedTable { |
75 | std::vector<file_type> Files; |
76 | llvm::DenseMap<internal_key_type, data_type> Data; |
77 | }; |
78 | |
79 | using Table = llvm::PointerUnion<OnDiskTable *, MergedTable *>; |
80 | using TableVector = llvm::TinyPtrVector<void *>; |
81 | |
82 | /// \brief The current set of on-disk and merged tables. |
83 | /// We manually store the opaque value of the Table because TinyPtrVector |
84 | /// can't cope with holding a PointerUnion directly. |
85 | /// There can be at most one MergedTable in this vector, and if present, |
86 | /// it is the first table. |
87 | TableVector Tables; |
88 | |
89 | /// \brief Files corresponding to overridden tables that we've not yet |
90 | /// discarded. |
91 | llvm::TinyPtrVector<file_type> PendingOverrides; |
92 | |
93 | struct AsOnDiskTable { |
94 | using result_type = OnDiskTable *; |
95 | |
96 | result_type operator()(void *P) const { |
97 | return Table::getFromOpaqueValue(P).template get<OnDiskTable *>(); |
98 | } |
99 | }; |
100 | |
101 | using table_iterator = |
102 | llvm::mapped_iterator<TableVector::iterator, AsOnDiskTable>; |
103 | using table_range = llvm::iterator_range<table_iterator>; |
104 | |
105 | /// \brief The current set of on-disk tables. |
106 | table_range tables() { |
107 | auto Begin = Tables.begin(), End = Tables.end(); |
108 | if (getMergedTable()) |
109 | ++Begin; |
110 | return llvm::make_range(llvm::map_iterator(Begin, AsOnDiskTable()), |
111 | llvm::map_iterator(End, AsOnDiskTable())); |
112 | } |
113 | |
114 | MergedTable *getMergedTable() const { |
115 | // If we already have a merged table, it's the first one. |
116 | return Tables.empty() ? nullptr : Table::getFromOpaqueValue(*Tables.begin()) |
117 | .template dyn_cast<MergedTable*>(); |
118 | } |
119 | |
120 | /// \brief Delete all our current on-disk tables. |
121 | void clear() { |
122 | for (auto *T : tables()) |
123 | delete T; |
124 | if (auto *M = getMergedTable()) |
125 | delete M; |
126 | Tables.clear(); |
127 | } |
128 | |
129 | void removeOverriddenTables() { |
130 | llvm::DenseSet<file_type> Files; |
131 | Files.insert(PendingOverrides.begin(), PendingOverrides.end()); |
132 | // Explicitly capture Files to work around an MSVC 2015 rejects-valid bug. |
133 | auto ShouldRemove = [&Files](void *T) -> bool { |
134 | auto *ODT = Table::getFromOpaqueValue(T).template get<OnDiskTable *>(); |
135 | bool Remove = Files.count(ODT->File); |
136 | if (Remove) |
137 | delete ODT; |
138 | return Remove; |
139 | }; |
140 | Tables.erase(std::remove_if(tables().begin().getCurrent(), Tables.end(), |
141 | ShouldRemove), |
142 | Tables.end()); |
143 | PendingOverrides.clear(); |
144 | } |
145 | |
146 | void condense() { |
147 | MergedTable *Merged = getMergedTable(); |
148 | if (!Merged) |
149 | Merged = new MergedTable; |
150 | |
151 | // Read in all the tables and merge them together. |
152 | // FIXME: Be smarter about which tables we merge. |
153 | for (auto *ODT : tables()) { |
154 | auto &HT = ODT->Table; |
155 | Info &InfoObj = HT.getInfoObj(); |
156 | |
157 | for (auto I = HT.data_begin(), E = HT.data_end(); I != E; ++I) { |
158 | auto *LocalPtr = I.getItem(); |
159 | |
160 | // FIXME: Don't rely on the OnDiskHashTable format here. |
161 | auto L = InfoObj.ReadKeyDataLength(LocalPtr); |
162 | const internal_key_type &Key = InfoObj.ReadKey(LocalPtr, L.first); |
163 | data_type_builder ValueBuilder(Merged->Data[Key]); |
164 | InfoObj.ReadDataInto(Key, LocalPtr + L.first, L.second, |
165 | ValueBuilder); |
166 | } |
167 | |
168 | Merged->Files.push_back(ODT->File); |
169 | delete ODT; |
170 | } |
171 | |
172 | Tables.clear(); |
173 | Tables.push_back(Table(Merged).getOpaqueValue()); |
174 | } |
175 | |
176 | public: |
177 | MultiOnDiskHashTable() = default; |
178 | |
179 | MultiOnDiskHashTable(MultiOnDiskHashTable &&O) |
180 | : Tables(std::move(O.Tables)), |
181 | PendingOverrides(std::move(O.PendingOverrides)) { |
182 | O.Tables.clear(); |
183 | } |
184 | |
185 | MultiOnDiskHashTable &operator=(MultiOnDiskHashTable &&O) { |
186 | if (&O == this) |
187 | return *this; |
188 | clear(); |
189 | Tables = std::move(O.Tables); |
190 | O.Tables.clear(); |
191 | PendingOverrides = std::move(O.PendingOverrides); |
192 | return *this; |
193 | } |
194 | |
195 | ~MultiOnDiskHashTable() { clear(); } |
196 | |
197 | /// \brief Add the table \p Data loaded from file \p File. |
198 | void add(file_type File, storage_type Data, Info InfoObj = Info()) { |
199 | using namespace llvm::support; |
200 | |
201 | storage_type Ptr = Data; |
202 | |
203 | uint32_t BucketOffset = endian::readNext<uint32_t, little, unaligned>(Ptr); |
204 | |
205 | // Read the list of overridden files. |
206 | uint32_t NumFiles = endian::readNext<uint32_t, little, unaligned>(Ptr); |
207 | // FIXME: Add a reserve() to TinyPtrVector so that we don't need to make |
208 | // an additional copy. |
209 | llvm::SmallVector<file_type, 16> OverriddenFiles; |
210 | OverriddenFiles.reserve(NumFiles); |
211 | for (/**/; NumFiles != 0; --NumFiles) |
212 | OverriddenFiles.push_back(InfoObj.ReadFileRef(Ptr)); |
213 | PendingOverrides.insert(PendingOverrides.end(), OverriddenFiles.begin(), |
214 | OverriddenFiles.end()); |
215 | |
216 | // Read the OnDiskChainedHashTable header. |
217 | storage_type Buckets = Data + BucketOffset; |
218 | auto NumBucketsAndEntries = |
219 | OnDiskTable::HashTable::readNumBucketsAndEntries(Buckets); |
220 | |
221 | // Register the table. |
222 | Table NewTable = new OnDiskTable(File, NumBucketsAndEntries.first, |
223 | NumBucketsAndEntries.second, |
224 | Buckets, Ptr, Data, std::move(InfoObj)); |
225 | Tables.push_back(NewTable.getOpaqueValue()); |
226 | } |
227 | |
228 | /// \brief Find and read the lookup results for \p EKey. |
229 | data_type find(const external_key_type &EKey) { |
230 | data_type Result; |
231 | |
232 | if (!PendingOverrides.empty()) |
233 | removeOverriddenTables(); |
234 | |
235 | if (Tables.size() > static_cast<unsigned>(Info::MaxTables)) |
236 | condense(); |
237 | |
238 | internal_key_type Key = Info::GetInternalKey(EKey); |
239 | auto KeyHash = Info::ComputeHash(Key); |
240 | |
241 | if (MergedTable *M = getMergedTable()) { |
242 | auto It = M->Data.find(Key); |
243 | if (It != M->Data.end()) |
244 | Result = It->second; |
245 | } |
246 | |
247 | data_type_builder ResultBuilder(Result); |
248 | |
249 | for (auto *ODT : tables()) { |
250 | auto &HT = ODT->Table; |
251 | auto It = HT.find_hashed(Key, KeyHash); |
252 | if (It != HT.end()) |
253 | HT.getInfoObj().ReadDataInto(Key, It.getDataPtr(), It.getDataLen(), |
254 | ResultBuilder); |
255 | } |
256 | |
257 | return Result; |
258 | } |
259 | |
260 | /// \brief Read all the lookup results into a single value. This only makes |
261 | /// sense if merging values across keys is meaningful. |
262 | data_type findAll() { |
263 | data_type Result; |
264 | data_type_builder ResultBuilder(Result); |
265 | |
266 | if (!PendingOverrides.empty()) |
267 | removeOverriddenTables(); |
268 | |
269 | if (MergedTable *M = getMergedTable()) { |
270 | for (auto &KV : M->Data) |
271 | Info::MergeDataInto(KV.second, ResultBuilder); |
272 | } |
273 | |
274 | for (auto *ODT : tables()) { |
275 | auto &HT = ODT->Table; |
276 | Info &InfoObj = HT.getInfoObj(); |
277 | for (auto I = HT.data_begin(), E = HT.data_end(); I != E; ++I) { |
278 | auto *LocalPtr = I.getItem(); |
279 | |
280 | // FIXME: Don't rely on the OnDiskHashTable format here. |
281 | auto L = InfoObj.ReadKeyDataLength(LocalPtr); |
282 | const internal_key_type &Key = InfoObj.ReadKey(LocalPtr, L.first); |
283 | InfoObj.ReadDataInto(Key, LocalPtr + L.first, L.second, ResultBuilder); |
284 | } |
285 | } |
286 | |
287 | return Result; |
288 | } |
289 | }; |
290 | |
291 | /// \brief Writer for the on-disk hash table. |
292 | template<typename ReaderInfo, typename WriterInfo> |
293 | class MultiOnDiskHashTableGenerator { |
294 | using BaseTable = MultiOnDiskHashTable<ReaderInfo>; |
295 | using Generator = llvm::OnDiskChainedHashTableGenerator<WriterInfo>; |
296 | |
297 | Generator Gen; |
298 | |
299 | public: |
300 | MultiOnDiskHashTableGenerator() : Gen() {} |
301 | |
302 | void insert(typename WriterInfo::key_type_ref Key, |
303 | typename WriterInfo::data_type_ref Data, WriterInfo &Info) { |
304 | Gen.insert(Key, Data, Info); |
305 | } |
306 | |
307 | void emit(llvm::SmallVectorImpl<char> &Out, WriterInfo &Info, |
308 | const BaseTable *Base) { |
309 | using namespace llvm::support; |
310 | |
311 | llvm::raw_svector_ostream OutStream(Out); |
312 | |
313 | // Write our header information. |
314 | { |
315 | endian::Writer<little> Writer(OutStream); |
316 | |
317 | // Reserve four bytes for the bucket offset. |
318 | Writer.write<uint32_t>(0); |
319 | |
320 | if (auto *Merged = Base ? Base->getMergedTable() : nullptr) { |
321 | // Write list of overridden files. |
322 | Writer.write<uint32_t>(Merged->Files.size()); |
323 | for (const auto &F : Merged->Files) |
324 | Info.EmitFileRef(OutStream, F); |
325 | |
326 | // Add all merged entries from Base to the generator. |
327 | for (auto &KV : Merged->Data) { |
328 | if (!Gen.contains(KV.first, Info)) |
329 | Gen.insert(KV.first, Info.ImportData(KV.second), Info); |
330 | } |
331 | } else { |
332 | Writer.write<uint32_t>(0); |
333 | } |
334 | } |
335 | |
336 | // Write the table itself. |
337 | uint32_t BucketOffset = Gen.Emit(OutStream, Info); |
338 | |
339 | // Replace the first four bytes with the bucket offset. |
340 | endian::write32le(Out.data(), BucketOffset); |
341 | } |
342 | }; |
343 | |
344 | } // namespace serialization |
345 | } // namespace clang |
346 | |
347 | #endif // LLVM_CLANG_LIB_SERIALIZATION_MULTIONDISKHASHTABLE_H |
1 | //===- ASTReaderInternals.h - AST Reader Internals --------------*- C++ -*-===// |
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 provides internal definitions used in the AST reader. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #ifndef LLVM_CLANG_LIB_SERIALIZATION_ASTREADERINTERNALS_H |
15 | #define LLVM_CLANG_LIB_SERIALIZATION_ASTREADERINTERNALS_H |
16 | |
17 | #include "MultiOnDiskHashTable.h" |
18 | #include "clang/AST/DeclarationName.h" |
19 | #include "clang/Basic/LLVM.h" |
20 | #include "clang/Serialization/ASTBitCodes.h" |
21 | #include "llvm/ADT/DenseSet.h" |
22 | #include "llvm/ADT/SmallVector.h" |
23 | #include "llvm/ADT/StringRef.h" |
24 | #include "llvm/Support/OnDiskHashTable.h" |
25 | #include <ctime> |
26 | #include <utility> |
27 | |
28 | namespace clang { |
29 | |
30 | class ASTReader; |
31 | class FileEntry; |
32 | struct HeaderFileInfo; |
33 | class HeaderSearch; |
34 | class IdentifierTable; |
35 | class ObjCMethodDecl; |
36 | |
37 | namespace serialization { |
38 | |
39 | class ModuleFile; |
40 | |
41 | namespace reader { |
42 | |
43 | /// \brief Class that performs name lookup into a DeclContext stored |
44 | /// in an AST file. |
45 | class ASTDeclContextNameLookupTrait { |
46 | ASTReader &Reader; |
47 | ModuleFile &F; |
48 | |
49 | public: |
50 | // Maximum number of lookup tables we allow before condensing the tables. |
51 | static const int MaxTables = 4; |
52 | |
53 | /// The lookup result is a list of global declaration IDs. |
54 | using data_type = SmallVector<DeclID, 4>; |
55 | |
56 | struct data_type_builder { |
57 | data_type &Data; |
58 | llvm::DenseSet<DeclID> Found; |
59 | |
60 | data_type_builder(data_type &D) : Data(D) {} |
61 | |
62 | void insert(DeclID ID) { |
63 | // Just use a linear scan unless we have more than a few IDs. |
64 | if (Found.empty() && !Data.empty()) { |
65 | if (Data.size() <= 4) { |
66 | for (auto I : Found) |
67 | if (I == ID) |
68 | return; |
69 | Data.push_back(ID); |
70 | return; |
71 | } |
72 | |
73 | // Switch to tracking found IDs in the set. |
74 | Found.insert(Data.begin(), Data.end()); |
75 | } |
76 | |
77 | if (Found.insert(ID).second) |
78 | Data.push_back(ID); |
79 | } |
80 | }; |
81 | using hash_value_type = unsigned; |
82 | using offset_type = unsigned; |
83 | using file_type = ModuleFile *; |
84 | |
85 | using external_key_type = DeclarationName; |
86 | using internal_key_type = DeclarationNameKey; |
87 | |
88 | explicit ASTDeclContextNameLookupTrait(ASTReader &Reader, ModuleFile &F) |
89 | : Reader(Reader), F(F) {} |
90 | |
91 | static bool EqualKey(const internal_key_type &a, const internal_key_type &b) { |
92 | return a == b; |
93 | } |
94 | |
95 | static hash_value_type ComputeHash(const internal_key_type &Key) { |
96 | return Key.getHash(); |
97 | } |
98 | |
99 | static internal_key_type GetInternalKey(const external_key_type &Name) { |
100 | return Name; |
101 | } |
102 | |
103 | static std::pair<unsigned, unsigned> |
104 | ReadKeyDataLength(const unsigned char *&d); |
105 | |
106 | internal_key_type ReadKey(const unsigned char *d, unsigned); |
107 | |
108 | void ReadDataInto(internal_key_type, const unsigned char *d, |
109 | unsigned DataLen, data_type_builder &Val); |
110 | |
111 | static void MergeDataInto(const data_type &From, data_type_builder &To) { |
112 | To.Data.reserve(To.Data.size() + From.size()); |
113 | for (DeclID ID : From) |
114 | To.insert(ID); |
115 | } |
116 | |
117 | file_type ReadFileRef(const unsigned char *&d); |
118 | }; |
119 | |
120 | struct DeclContextLookupTable { |
121 | MultiOnDiskHashTable<ASTDeclContextNameLookupTrait> Table; |
122 | }; |
123 | |
124 | /// \brief Base class for the trait describing the on-disk hash table for the |
125 | /// identifiers in an AST file. |
126 | /// |
127 | /// This class is not useful by itself; rather, it provides common |
128 | /// functionality for accessing the on-disk hash table of identifiers |
129 | /// in an AST file. Different subclasses customize that functionality |
130 | /// based on what information they are interested in. Those subclasses |
131 | /// must provide the \c data_type type and the ReadData operation, only. |
132 | class ASTIdentifierLookupTraitBase { |
133 | public: |
134 | using external_key_type = StringRef; |
135 | using internal_key_type = StringRef; |
136 | using hash_value_type = unsigned; |
137 | using offset_type = unsigned; |
138 | |
139 | static bool EqualKey(const internal_key_type& a, const internal_key_type& b) { |
140 | return a == b; |
141 | } |
142 | |
143 | static hash_value_type ComputeHash(const internal_key_type& a); |
144 | |
145 | static std::pair<unsigned, unsigned> |
146 | ReadKeyDataLength(const unsigned char*& d); |
147 | |
148 | // This hopefully will just get inlined and removed by the optimizer. |
149 | static const internal_key_type& |
150 | GetInternalKey(const external_key_type& x) { return x; } |
151 | |
152 | // This hopefully will just get inlined and removed by the optimizer. |
153 | static const external_key_type& |
154 | GetExternalKey(const internal_key_type& x) { return x; } |
155 | |
156 | static internal_key_type ReadKey(const unsigned char* d, unsigned n); |
157 | }; |
158 | |
159 | /// \brief Class that performs lookup for an identifier stored in an AST file. |
160 | class ASTIdentifierLookupTrait : public ASTIdentifierLookupTraitBase { |
161 | ASTReader &Reader; |
162 | ModuleFile &F; |
163 | |
164 | // If we know the IdentifierInfo in advance, it is here and we will |
165 | // not build a new one. Used when deserializing information about an |
166 | // identifier that was constructed before the AST file was read. |
167 | IdentifierInfo *KnownII; |
168 | |
169 | public: |
170 | using data_type = IdentifierInfo *; |
171 | |
172 | ASTIdentifierLookupTrait(ASTReader &Reader, ModuleFile &F, |
173 | IdentifierInfo *II = nullptr) |
174 | : Reader(Reader), F(F), KnownII(II) {} |
175 | |
176 | data_type ReadData(const internal_key_type& k, |
177 | const unsigned char* d, |
178 | unsigned DataLen); |
179 | |
180 | IdentID ReadIdentifierID(const unsigned char *d); |
181 | |
182 | ASTReader &getReader() const { return Reader; } |
183 | }; |
184 | |
185 | /// \brief The on-disk hash table used to contain information about |
186 | /// all of the identifiers in the program. |
187 | using ASTIdentifierLookupTable = |
188 | llvm::OnDiskIterableChainedHashTable<ASTIdentifierLookupTrait>; |
189 | |
190 | /// \brief Class that performs lookup for a selector's entries in the global |
191 | /// method pool stored in an AST file. |
192 | class ASTSelectorLookupTrait { |
193 | ASTReader &Reader; |
194 | ModuleFile &F; |
195 | |
196 | public: |
197 | struct data_type { |
198 | SelectorID ID; |
199 | unsigned InstanceBits; |
200 | unsigned FactoryBits; |
201 | bool InstanceHasMoreThanOneDecl; |
202 | bool FactoryHasMoreThanOneDecl; |
203 | SmallVector<ObjCMethodDecl *, 2> Instance; |
204 | SmallVector<ObjCMethodDecl *, 2> Factory; |
205 | }; |
206 | |
207 | using external_key_type = Selector; |
208 | using internal_key_type = external_key_type; |
209 | using hash_value_type = unsigned; |
210 | using offset_type = unsigned; |
211 | |
212 | ASTSelectorLookupTrait(ASTReader &Reader, ModuleFile &F) |
213 | : Reader(Reader), F(F) {} |
214 | |
215 | static bool EqualKey(const internal_key_type& a, |
216 | const internal_key_type& b) { |
217 | return a == b; |
218 | } |
219 | |
220 | static hash_value_type ComputeHash(Selector Sel); |
221 | |
222 | static const internal_key_type& |
223 | GetInternalKey(const external_key_type& x) { return x; } |
224 | |
225 | static std::pair<unsigned, unsigned> |
226 | ReadKeyDataLength(const unsigned char*& d); |
227 | |
228 | internal_key_type ReadKey(const unsigned char* d, unsigned); |
229 | data_type ReadData(Selector, const unsigned char* d, unsigned DataLen); |
230 | }; |
231 | |
232 | /// \brief The on-disk hash table used for the global method pool. |
233 | using ASTSelectorLookupTable = |
234 | llvm::OnDiskChainedHashTable<ASTSelectorLookupTrait>; |
235 | |
236 | /// \brief Trait class used to search the on-disk hash table containing all of |
237 | /// the header search information. |
238 | /// |
239 | /// The on-disk hash table contains a mapping from each header path to |
240 | /// information about that header (how many times it has been included, its |
241 | /// controlling macro, etc.). Note that we actually hash based on the size |
242 | /// and mtime, and support "deep" comparisons of file names based on current |
243 | /// inode numbers, so that the search can cope with non-normalized path names |
244 | /// and symlinks. |
245 | class HeaderFileInfoTrait { |
246 | ASTReader &Reader; |
247 | ModuleFile &M; |
248 | HeaderSearch *HS; |
249 | const char *FrameworkStrings; |
250 | |
251 | public: |
252 | using external_key_type = const FileEntry *; |
253 | |
254 | struct internal_key_type { |
255 | off_t Size; |
256 | time_t ModTime; |
257 | StringRef Filename; |
258 | bool Imported; |
259 | }; |
260 | |
261 | using internal_key_ref = const internal_key_type &; |
262 | |
263 | using data_type = HeaderFileInfo; |
264 | using hash_value_type = unsigned; |
265 | using offset_type = unsigned; |
266 | |
267 | HeaderFileInfoTrait(ASTReader &Reader, ModuleFile &M, HeaderSearch *HS, |
268 | const char *FrameworkStrings) |
269 | : Reader(Reader), M(M), HS(HS), FrameworkStrings(FrameworkStrings) {} |
270 | |
271 | static hash_value_type ComputeHash(internal_key_ref ikey); |
272 | internal_key_type GetInternalKey(const FileEntry *FE); |
273 | bool EqualKey(internal_key_ref a, internal_key_ref b); |
274 | |
275 | static std::pair<unsigned, unsigned> |
276 | ReadKeyDataLength(const unsigned char*& d); |
277 | |
278 | static internal_key_type ReadKey(const unsigned char *d, unsigned); |
279 | |
280 | data_type ReadData(internal_key_ref,const unsigned char *d, unsigned DataLen); |
281 | }; |
282 | |
283 | /// \brief The on-disk hash table used for known header files. |
284 | using HeaderFileInfoLookupTable = |
285 | llvm::OnDiskChainedHashTable<HeaderFileInfoTrait>; |
286 | |
287 | } // namespace reader |
288 | |
289 | } // namespace serialization |
290 | |
291 | } // namespace clang |
292 | |
293 | #endif // LLVM_CLANG_LIB_SERIALIZATION_ASTREADERINTERNALS_H |