/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Frontend/ASTUnit.cpp
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1 | | //===- ASTUnit.cpp - ASTUnit utility --------------------------------------===// |
2 | | // |
3 | | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | | // See https://llvm.org/LICENSE.txt for license information. |
5 | | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | // |
9 | | // ASTUnit Implementation. |
10 | | // |
11 | | //===----------------------------------------------------------------------===// |
12 | | |
13 | | #include "clang/Frontend/ASTUnit.h" |
14 | | #include "clang/AST/ASTConsumer.h" |
15 | | #include "clang/AST/ASTContext.h" |
16 | | #include "clang/AST/CommentCommandTraits.h" |
17 | | #include "clang/AST/Decl.h" |
18 | | #include "clang/AST/DeclBase.h" |
19 | | #include "clang/AST/DeclCXX.h" |
20 | | #include "clang/AST/DeclGroup.h" |
21 | | #include "clang/AST/DeclObjC.h" |
22 | | #include "clang/AST/DeclTemplate.h" |
23 | | #include "clang/AST/DeclarationName.h" |
24 | | #include "clang/AST/ExternalASTSource.h" |
25 | | #include "clang/AST/PrettyPrinter.h" |
26 | | #include "clang/AST/Type.h" |
27 | | #include "clang/AST/TypeOrdering.h" |
28 | | #include "clang/Basic/Diagnostic.h" |
29 | | #include "clang/Basic/FileManager.h" |
30 | | #include "clang/Basic/IdentifierTable.h" |
31 | | #include "clang/Basic/LLVM.h" |
32 | | #include "clang/Basic/LangOptions.h" |
33 | | #include "clang/Basic/LangStandard.h" |
34 | | #include "clang/Basic/Module.h" |
35 | | #include "clang/Basic/SourceLocation.h" |
36 | | #include "clang/Basic/SourceManager.h" |
37 | | #include "clang/Basic/TargetInfo.h" |
38 | | #include "clang/Basic/TargetOptions.h" |
39 | | #include "clang/Frontend/CompilerInstance.h" |
40 | | #include "clang/Frontend/CompilerInvocation.h" |
41 | | #include "clang/Frontend/FrontendAction.h" |
42 | | #include "clang/Frontend/FrontendActions.h" |
43 | | #include "clang/Frontend/FrontendDiagnostic.h" |
44 | | #include "clang/Frontend/FrontendOptions.h" |
45 | | #include "clang/Frontend/MultiplexConsumer.h" |
46 | | #include "clang/Frontend/PrecompiledPreamble.h" |
47 | | #include "clang/Frontend/Utils.h" |
48 | | #include "clang/Lex/HeaderSearch.h" |
49 | | #include "clang/Lex/HeaderSearchOptions.h" |
50 | | #include "clang/Lex/Lexer.h" |
51 | | #include "clang/Lex/PPCallbacks.h" |
52 | | #include "clang/Lex/PreprocessingRecord.h" |
53 | | #include "clang/Lex/Preprocessor.h" |
54 | | #include "clang/Lex/PreprocessorOptions.h" |
55 | | #include "clang/Lex/Token.h" |
56 | | #include "clang/Sema/CodeCompleteConsumer.h" |
57 | | #include "clang/Sema/CodeCompleteOptions.h" |
58 | | #include "clang/Sema/Sema.h" |
59 | | #include "clang/Serialization/ASTBitCodes.h" |
60 | | #include "clang/Serialization/ASTReader.h" |
61 | | #include "clang/Serialization/ASTWriter.h" |
62 | | #include "clang/Serialization/ContinuousRangeMap.h" |
63 | | #include "clang/Serialization/InMemoryModuleCache.h" |
64 | | #include "clang/Serialization/ModuleFile.h" |
65 | | #include "clang/Serialization/PCHContainerOperations.h" |
66 | | #include "llvm/ADT/ArrayRef.h" |
67 | | #include "llvm/ADT/DenseMap.h" |
68 | | #include "llvm/ADT/IntrusiveRefCntPtr.h" |
69 | | #include "llvm/ADT/STLExtras.h" |
70 | | #include "llvm/ADT/ScopeExit.h" |
71 | | #include "llvm/ADT/SmallVector.h" |
72 | | #include "llvm/ADT/StringMap.h" |
73 | | #include "llvm/ADT/StringRef.h" |
74 | | #include "llvm/ADT/StringSet.h" |
75 | | #include "llvm/ADT/Twine.h" |
76 | | #include "llvm/ADT/iterator_range.h" |
77 | | #include "llvm/Bitstream/BitstreamWriter.h" |
78 | | #include "llvm/Support/Allocator.h" |
79 | | #include "llvm/Support/Casting.h" |
80 | | #include "llvm/Support/CrashRecoveryContext.h" |
81 | | #include "llvm/Support/DJB.h" |
82 | | #include "llvm/Support/ErrorHandling.h" |
83 | | #include "llvm/Support/ErrorOr.h" |
84 | | #include "llvm/Support/FileSystem.h" |
85 | | #include "llvm/Support/MemoryBuffer.h" |
86 | | #include "llvm/Support/SaveAndRestore.h" |
87 | | #include "llvm/Support/Timer.h" |
88 | | #include "llvm/Support/VirtualFileSystem.h" |
89 | | #include "llvm/Support/raw_ostream.h" |
90 | | #include <algorithm> |
91 | | #include <atomic> |
92 | | #include <cassert> |
93 | | #include <cstdint> |
94 | | #include <cstdio> |
95 | | #include <cstdlib> |
96 | | #include <memory> |
97 | | #include <mutex> |
98 | | #include <optional> |
99 | | #include <string> |
100 | | #include <tuple> |
101 | | #include <utility> |
102 | | #include <vector> |
103 | | |
104 | | using namespace clang; |
105 | | |
106 | | using llvm::TimeRecord; |
107 | | |
108 | | namespace { |
109 | | |
110 | | class SimpleTimer { |
111 | | bool WantTiming; |
112 | | TimeRecord Start; |
113 | | std::string Output; |
114 | | |
115 | | public: |
116 | 11.0k | explicit SimpleTimer(bool WantTiming) : WantTiming(WantTiming) { |
117 | 11.0k | if (WantTiming) |
118 | 18 | Start = TimeRecord::getCurrentTime(); |
119 | 11.0k | } |
120 | | |
121 | 10.9k | ~SimpleTimer() { |
122 | 10.9k | if (WantTiming) { |
123 | 18 | TimeRecord Elapsed = TimeRecord::getCurrentTime(); |
124 | 18 | Elapsed -= Start; |
125 | 18 | llvm::errs() << Output << ':'; |
126 | 18 | Elapsed.print(Elapsed, llvm::errs()); |
127 | 18 | llvm::errs() << '\n'; |
128 | 18 | } |
129 | 10.9k | } |
130 | | |
131 | 11.0k | void setOutput(const Twine &Output) { |
132 | 11.0k | if (WantTiming) |
133 | 18 | this->Output = Output.str(); |
134 | 11.0k | } |
135 | | }; |
136 | | |
137 | | } // namespace |
138 | | |
139 | | template <class T> |
140 | 526 | static std::unique_ptr<T> valueOrNull(llvm::ErrorOr<std::unique_ptr<T>> Val) { |
141 | 526 | if (!Val) |
142 | 0 | return nullptr; |
143 | 526 | return std::move(*Val); |
144 | 526 | } |
145 | | |
146 | | template <class T> |
147 | | static bool moveOnNoError(llvm::ErrorOr<T> Val, T &Output) { |
148 | | if (!Val) |
149 | | return false; |
150 | | Output = std::move(*Val); |
151 | | return true; |
152 | | } |
153 | | |
154 | | /// Get a source buffer for \p MainFilePath, handling all file-to-file |
155 | | /// and file-to-buffer remappings inside \p Invocation. |
156 | | static std::unique_ptr<llvm::MemoryBuffer> |
157 | | getBufferForFileHandlingRemapping(const CompilerInvocation &Invocation, |
158 | | llvm::vfs::FileSystem *VFS, |
159 | 537 | StringRef FilePath, bool isVolatile) { |
160 | 537 | const auto &PreprocessorOpts = Invocation.getPreprocessorOpts(); |
161 | | |
162 | | // Try to determine if the main file has been remapped, either from the |
163 | | // command line (to another file) or directly through the compiler |
164 | | // invocation (to a memory buffer). |
165 | 537 | llvm::MemoryBuffer *Buffer = nullptr; |
166 | 537 | std::unique_ptr<llvm::MemoryBuffer> BufferOwner; |
167 | 537 | auto FileStatus = VFS->status(FilePath); |
168 | 537 | if (FileStatus) { |
169 | 537 | llvm::sys::fs::UniqueID MainFileID = FileStatus->getUniqueID(); |
170 | | |
171 | | // Check whether there is a file-file remapping of the main file |
172 | 537 | for (const auto &RF : PreprocessorOpts.RemappedFiles) { |
173 | 0 | std::string MPath(RF.first); |
174 | 0 | auto MPathStatus = VFS->status(MPath); |
175 | 0 | if (MPathStatus) { |
176 | 0 | llvm::sys::fs::UniqueID MID = MPathStatus->getUniqueID(); |
177 | 0 | if (MainFileID == MID) { |
178 | | // We found a remapping. Try to load the resulting, remapped source. |
179 | 0 | BufferOwner = valueOrNull(VFS->getBufferForFile(RF.second, -1, true, isVolatile)); |
180 | 0 | if (!BufferOwner) |
181 | 0 | return nullptr; |
182 | 0 | } |
183 | 0 | } |
184 | 0 | } |
185 | | |
186 | | // Check whether there is a file-buffer remapping. It supercedes the |
187 | | // file-file remapping. |
188 | 537 | for (const auto &RB : PreprocessorOpts.RemappedFileBuffers) { |
189 | 23 | std::string MPath(RB.first); |
190 | 23 | auto MPathStatus = VFS->status(MPath); |
191 | 23 | if (MPathStatus) { |
192 | 19 | llvm::sys::fs::UniqueID MID = MPathStatus->getUniqueID(); |
193 | 19 | if (MainFileID == MID) { |
194 | | // We found a remapping. |
195 | 11 | BufferOwner.reset(); |
196 | 11 | Buffer = const_cast<llvm::MemoryBuffer *>(RB.second); |
197 | 11 | } |
198 | 19 | } |
199 | 23 | } |
200 | 537 | } |
201 | | |
202 | | // If the main source file was not remapped, load it now. |
203 | 537 | if (!Buffer && !BufferOwner526 ) { |
204 | 526 | BufferOwner = valueOrNull(VFS->getBufferForFile(FilePath, -1, true, isVolatile)); |
205 | 526 | if (!BufferOwner) |
206 | 0 | return nullptr; |
207 | 526 | } |
208 | | |
209 | 537 | if (BufferOwner) |
210 | 526 | return BufferOwner; |
211 | 11 | if (!Buffer) |
212 | 0 | return nullptr; |
213 | 11 | return llvm::MemoryBuffer::getMemBufferCopy(Buffer->getBuffer(), FilePath); |
214 | 11 | } |
215 | | |
216 | | struct ASTUnit::ASTWriterData { |
217 | | SmallString<128> Buffer; |
218 | | llvm::BitstreamWriter Stream; |
219 | | ASTWriter Writer; |
220 | | |
221 | | ASTWriterData(InMemoryModuleCache &ModuleCache) |
222 | 60 | : Stream(Buffer), Writer(Stream, Buffer, ModuleCache, {}) {} |
223 | | }; |
224 | | |
225 | 20.5k | void ASTUnit::clearFileLevelDecls() { |
226 | 20.5k | FileDecls.clear(); |
227 | 20.5k | } |
228 | | |
229 | | /// After failing to build a precompiled preamble (due to |
230 | | /// errors in the source that occurs in the preamble), the number of |
231 | | /// reparses during which we'll skip even trying to precompile the |
232 | | /// preamble. |
233 | | const unsigned DefaultPreambleRebuildInterval = 5; |
234 | | |
235 | | /// Tracks the number of ASTUnit objects that are currently active. |
236 | | /// |
237 | | /// Used for debugging purposes only. |
238 | | static std::atomic<unsigned> ActiveASTUnitObjects; |
239 | | |
240 | | ASTUnit::ASTUnit(bool _MainFileIsAST) |
241 | 9.68k | : MainFileIsAST(_MainFileIsAST), WantTiming(getenv("LIBCLANG_TIMING")), |
242 | 9.68k | ShouldCacheCodeCompletionResults(false), |
243 | 9.68k | IncludeBriefCommentsInCodeCompletion(false), UserFilesAreVolatile(false), |
244 | 9.68k | UnsafeToFree(false) { |
245 | 9.68k | if (getenv("LIBCLANG_OBJTRACKING")) |
246 | 0 | fprintf(stderr, "+++ %u translation units\n", ++ActiveASTUnitObjects); |
247 | 9.68k | } |
248 | | |
249 | 9.66k | ASTUnit::~ASTUnit() { |
250 | | // If we loaded from an AST file, balance out the BeginSourceFile call. |
251 | 9.66k | if (MainFileIsAST && getDiagnostics().getClient()227 ) { |
252 | 227 | getDiagnostics().getClient()->EndSourceFile(); |
253 | 227 | } |
254 | | |
255 | 9.66k | clearFileLevelDecls(); |
256 | | |
257 | | // Free the buffers associated with remapped files. We are required to |
258 | | // perform this operation here because we explicitly request that the |
259 | | // compiler instance *not* free these buffers for each invocation of the |
260 | | // parser. |
261 | 9.66k | if (Invocation && OwnsRemappedFileBuffers9.44k ) { |
262 | 9.36k | PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts(); |
263 | 9.36k | for (const auto &RB : PPOpts.RemappedFileBuffers) |
264 | 13 | delete RB.second; |
265 | 9.36k | } |
266 | | |
267 | 9.66k | ClearCachedCompletionResults(); |
268 | | |
269 | 9.66k | if (getenv("LIBCLANG_OBJTRACKING")) |
270 | 0 | fprintf(stderr, "--- %u translation units\n", --ActiveASTUnitObjects); |
271 | 9.66k | } |
272 | | |
273 | 99 | void ASTUnit::setPreprocessor(std::shared_ptr<Preprocessor> PP) { |
274 | 99 | this->PP = std::move(PP); |
275 | 99 | } |
276 | | |
277 | 5.37k | void ASTUnit::enableSourceFileDiagnostics() { |
278 | 5.37k | assert(getDiagnostics().getClient() && Ctx && |
279 | 5.37k | "Bad context for source file"); |
280 | 5.37k | getDiagnostics().getClient()->BeginSourceFile(Ctx->getLangOpts(), PP.get()); |
281 | 5.37k | } |
282 | | |
283 | | /// Determine the set of code-completion contexts in which this |
284 | | /// declaration should be shown. |
285 | | static uint64_t getDeclShowContexts(const NamedDecl *ND, |
286 | | const LangOptions &LangOpts, |
287 | 517 | bool &IsNestedNameSpecifier) { |
288 | 517 | IsNestedNameSpecifier = false; |
289 | | |
290 | 517 | if (isa<UsingShadowDecl>(ND)) |
291 | 2 | ND = ND->getUnderlyingDecl(); |
292 | 517 | if (!ND) |
293 | 0 | return 0; |
294 | | |
295 | 517 | uint64_t Contexts = 0; |
296 | 517 | if (isa<TypeDecl>(ND) || isa<ObjCInterfaceDecl>(ND)344 || |
297 | 517 | isa<ClassTemplateDecl>(ND)294 || isa<TemplateTemplateParmDecl>(ND)287 || |
298 | 517 | isa<TypeAliasTemplateDecl>(ND)287 ) { |
299 | | // Types can appear in these contexts. |
300 | 231 | if (LangOpts.CPlusPlus || !isa<TagDecl>(ND)185 ) |
301 | 212 | Contexts |= (1LL << CodeCompletionContext::CCC_TopLevel) |
302 | 212 | | (1LL << CodeCompletionContext::CCC_ObjCIvarList) |
303 | 212 | | (1LL << CodeCompletionContext::CCC_ClassStructUnion) |
304 | 212 | | (1LL << CodeCompletionContext::CCC_Statement) |
305 | 212 | | (1LL << CodeCompletionContext::CCC_Type) |
306 | 212 | | (1LL << CodeCompletionContext::CCC_ParenthesizedExpression); |
307 | | |
308 | | // In C++, types can appear in expressions contexts (for functional casts). |
309 | 231 | if (LangOpts.CPlusPlus) |
310 | 46 | Contexts |= (1LL << CodeCompletionContext::CCC_Expression); |
311 | | |
312 | | // In Objective-C, message sends can send interfaces. In Objective-C++, |
313 | | // all types are available due to functional casts. |
314 | 231 | if (LangOpts.CPlusPlus || isa<ObjCInterfaceDecl>(ND)185 ) |
315 | 94 | Contexts |= (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver); |
316 | | |
317 | | // In Objective-C, you can only be a subclass of another Objective-C class |
318 | 231 | if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND)) { |
319 | | // Objective-C interfaces can be used in a class property expression. |
320 | 50 | if (ID->getDefinition()) |
321 | 14 | Contexts |= (1LL << CodeCompletionContext::CCC_Expression); |
322 | 50 | Contexts |= (1LL << CodeCompletionContext::CCC_ObjCInterfaceName); |
323 | 50 | Contexts |= (1LL << CodeCompletionContext::CCC_ObjCClassForwardDecl); |
324 | 50 | } |
325 | | |
326 | | // Deal with tag names. |
327 | 231 | if (isa<EnumDecl>(ND)) { |
328 | 2 | Contexts |= (1LL << CodeCompletionContext::CCC_EnumTag); |
329 | | |
330 | | // Part of the nested-name-specifier in C++0x. |
331 | 2 | if (LangOpts.CPlusPlus11) |
332 | 0 | IsNestedNameSpecifier = true; |
333 | 229 | } else if (const auto *Record = dyn_cast<RecordDecl>(ND)) { |
334 | 50 | if (Record->isUnion()) |
335 | 0 | Contexts |= (1LL << CodeCompletionContext::CCC_UnionTag); |
336 | 50 | else |
337 | 50 | Contexts |= (1LL << CodeCompletionContext::CCC_ClassOrStructTag); |
338 | | |
339 | 50 | if (LangOpts.CPlusPlus) |
340 | 33 | IsNestedNameSpecifier = true; |
341 | 179 | } else if (isa<ClassTemplateDecl>(ND)) |
342 | 7 | IsNestedNameSpecifier = true; |
343 | 286 | } else if (isa<ValueDecl>(ND) || isa<FunctionTemplateDecl>(ND)21 ) { |
344 | | // Values can appear in these contexts. |
345 | 269 | Contexts = (1LL << CodeCompletionContext::CCC_Statement) |
346 | 269 | | (1LL << CodeCompletionContext::CCC_Expression) |
347 | 269 | | (1LL << CodeCompletionContext::CCC_ParenthesizedExpression) |
348 | 269 | | (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver); |
349 | 269 | } else if (17 isa<ObjCProtocolDecl>(ND)17 ) { |
350 | 4 | Contexts = (1LL << CodeCompletionContext::CCC_ObjCProtocolName); |
351 | 13 | } else if (isa<ObjCCategoryDecl>(ND)) { |
352 | 0 | Contexts = (1LL << CodeCompletionContext::CCC_ObjCCategoryName); |
353 | 13 | } else if (isa<NamespaceDecl>(ND) || isa<NamespaceAliasDecl>(ND)1 ) { |
354 | 12 | Contexts = (1LL << CodeCompletionContext::CCC_Namespace); |
355 | | |
356 | | // Part of the nested-name-specifier. |
357 | 12 | IsNestedNameSpecifier = true; |
358 | 12 | } |
359 | | |
360 | 517 | return Contexts; |
361 | 517 | } |
362 | | |
363 | 104 | void ASTUnit::CacheCodeCompletionResults() { |
364 | 104 | if (!TheSema) |
365 | 0 | return; |
366 | | |
367 | 104 | SimpleTimer Timer(WantTiming); |
368 | 104 | Timer.setOutput("Cache global code completions for " + getMainFileName()); |
369 | | |
370 | | // Clear out the previous results. |
371 | 104 | ClearCachedCompletionResults(); |
372 | | |
373 | | // Gather the set of global code completions. |
374 | 104 | using Result = CodeCompletionResult; |
375 | 104 | SmallVector<Result, 8> Results; |
376 | 104 | CachedCompletionAllocator = std::make_shared<GlobalCodeCompletionAllocator>(); |
377 | 104 | CodeCompletionTUInfo CCTUInfo(CachedCompletionAllocator); |
378 | 104 | TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator, |
379 | 104 | CCTUInfo, Results); |
380 | | |
381 | | // Translate global code completions into cached completions. |
382 | 104 | llvm::DenseMap<CanQualType, unsigned> CompletionTypes; |
383 | 104 | CodeCompletionContext CCContext(CodeCompletionContext::CCC_TopLevel); |
384 | | |
385 | 46.7k | for (auto &R : Results) { |
386 | 46.7k | switch (R.Kind) { |
387 | 517 | case Result::RK_Declaration: { |
388 | 517 | bool IsNestedNameSpecifier = false; |
389 | 517 | CachedCodeCompletionResult CachedResult; |
390 | 517 | CachedResult.Completion = R.CreateCodeCompletionString( |
391 | 517 | *TheSema, CCContext, *CachedCompletionAllocator, CCTUInfo, |
392 | 517 | IncludeBriefCommentsInCodeCompletion); |
393 | 517 | CachedResult.ShowInContexts = getDeclShowContexts( |
394 | 517 | R.Declaration, Ctx->getLangOpts(), IsNestedNameSpecifier); |
395 | 517 | CachedResult.Priority = R.Priority; |
396 | 517 | CachedResult.Kind = R.CursorKind; |
397 | 517 | CachedResult.Availability = R.Availability; |
398 | | |
399 | | // Keep track of the type of this completion in an ASTContext-agnostic |
400 | | // way. |
401 | 517 | QualType UsageType = getDeclUsageType(*Ctx, R.Declaration); |
402 | 517 | if (UsageType.isNull()) { |
403 | 25 | CachedResult.TypeClass = STC_Void; |
404 | 25 | CachedResult.Type = 0; |
405 | 492 | } else { |
406 | 492 | CanQualType CanUsageType |
407 | 492 | = Ctx->getCanonicalType(UsageType.getUnqualifiedType()); |
408 | 492 | CachedResult.TypeClass = getSimplifiedTypeClass(CanUsageType); |
409 | | |
410 | | // Determine whether we have already seen this type. If so, we save |
411 | | // ourselves the work of formatting the type string by using the |
412 | | // temporary, CanQualType-based hash table to find the associated value. |
413 | 492 | unsigned &TypeValue = CompletionTypes[CanUsageType]; |
414 | 492 | if (TypeValue == 0) { |
415 | 346 | TypeValue = CompletionTypes.size(); |
416 | 346 | CachedCompletionTypes[QualType(CanUsageType).getAsString()] |
417 | 346 | = TypeValue; |
418 | 346 | } |
419 | | |
420 | 492 | CachedResult.Type = TypeValue; |
421 | 492 | } |
422 | | |
423 | 517 | CachedCompletionResults.push_back(CachedResult); |
424 | | |
425 | | /// Handle nested-name-specifiers in C++. |
426 | 517 | if (TheSema->Context.getLangOpts().CPlusPlus && IsNestedNameSpecifier139 && |
427 | 517 | !R.StartsNestedNameSpecifier52 ) { |
428 | | // The contexts in which a nested-name-specifier can appear in C++. |
429 | 52 | uint64_t NNSContexts |
430 | 52 | = (1LL << CodeCompletionContext::CCC_TopLevel) |
431 | 52 | | (1LL << CodeCompletionContext::CCC_ObjCIvarList) |
432 | 52 | | (1LL << CodeCompletionContext::CCC_ClassStructUnion) |
433 | 52 | | (1LL << CodeCompletionContext::CCC_Statement) |
434 | 52 | | (1LL << CodeCompletionContext::CCC_Expression) |
435 | 52 | | (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver) |
436 | 52 | | (1LL << CodeCompletionContext::CCC_EnumTag) |
437 | 52 | | (1LL << CodeCompletionContext::CCC_UnionTag) |
438 | 52 | | (1LL << CodeCompletionContext::CCC_ClassOrStructTag) |
439 | 52 | | (1LL << CodeCompletionContext::CCC_Type) |
440 | 52 | | (1LL << CodeCompletionContext::CCC_SymbolOrNewName) |
441 | 52 | | (1LL << CodeCompletionContext::CCC_ParenthesizedExpression); |
442 | | |
443 | 52 | if (isa<NamespaceDecl>(R.Declaration) || |
444 | 52 | isa<NamespaceAliasDecl>(R.Declaration)40 ) |
445 | 12 | NNSContexts |= (1LL << CodeCompletionContext::CCC_Namespace); |
446 | | |
447 | 52 | if (uint64_t RemainingContexts |
448 | 52 | = NNSContexts & ~CachedResult.ShowInContexts) { |
449 | | // If there any contexts where this completion can be a |
450 | | // nested-name-specifier but isn't already an option, create a |
451 | | // nested-name-specifier completion. |
452 | 52 | R.StartsNestedNameSpecifier = true; |
453 | 52 | CachedResult.Completion = R.CreateCodeCompletionString( |
454 | 52 | *TheSema, CCContext, *CachedCompletionAllocator, CCTUInfo, |
455 | 52 | IncludeBriefCommentsInCodeCompletion); |
456 | 52 | CachedResult.ShowInContexts = RemainingContexts; |
457 | 52 | CachedResult.Priority = CCP_NestedNameSpecifier; |
458 | 52 | CachedResult.TypeClass = STC_Void; |
459 | 52 | CachedResult.Type = 0; |
460 | 52 | CachedCompletionResults.push_back(CachedResult); |
461 | 52 | } |
462 | 52 | } |
463 | 517 | break; |
464 | 0 | } |
465 | | |
466 | 0 | case Result::RK_Keyword: |
467 | 0 | case Result::RK_Pattern: |
468 | | // Ignore keywords and patterns; we don't care, since they are so |
469 | | // easily regenerated. |
470 | 0 | break; |
471 | | |
472 | 46.2k | case Result::RK_Macro: { |
473 | 46.2k | CachedCodeCompletionResult CachedResult; |
474 | 46.2k | CachedResult.Completion = R.CreateCodeCompletionString( |
475 | 46.2k | *TheSema, CCContext, *CachedCompletionAllocator, CCTUInfo, |
476 | 46.2k | IncludeBriefCommentsInCodeCompletion); |
477 | 46.2k | CachedResult.ShowInContexts |
478 | 46.2k | = (1LL << CodeCompletionContext::CCC_TopLevel) |
479 | 46.2k | | (1LL << CodeCompletionContext::CCC_ObjCInterface) |
480 | 46.2k | | (1LL << CodeCompletionContext::CCC_ObjCImplementation) |
481 | 46.2k | | (1LL << CodeCompletionContext::CCC_ObjCIvarList) |
482 | 46.2k | | (1LL << CodeCompletionContext::CCC_ClassStructUnion) |
483 | 46.2k | | (1LL << CodeCompletionContext::CCC_Statement) |
484 | 46.2k | | (1LL << CodeCompletionContext::CCC_Expression) |
485 | 46.2k | | (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver) |
486 | 46.2k | | (1LL << CodeCompletionContext::CCC_MacroNameUse) |
487 | 46.2k | | (1LL << CodeCompletionContext::CCC_PreprocessorExpression) |
488 | 46.2k | | (1LL << CodeCompletionContext::CCC_ParenthesizedExpression) |
489 | 46.2k | | (1LL << CodeCompletionContext::CCC_OtherWithMacros); |
490 | | |
491 | 46.2k | CachedResult.Priority = R.Priority; |
492 | 46.2k | CachedResult.Kind = R.CursorKind; |
493 | 46.2k | CachedResult.Availability = R.Availability; |
494 | 46.2k | CachedResult.TypeClass = STC_Void; |
495 | 46.2k | CachedResult.Type = 0; |
496 | 46.2k | CachedCompletionResults.push_back(CachedResult); |
497 | 46.2k | break; |
498 | 0 | } |
499 | 46.7k | } |
500 | 46.7k | } |
501 | | |
502 | | // Save the current top-level hash value. |
503 | 104 | CompletionCacheTopLevelHashValue = CurrentTopLevelHashValue; |
504 | 104 | } |
505 | | |
506 | 9.77k | void ASTUnit::ClearCachedCompletionResults() { |
507 | 9.77k | CachedCompletionResults.clear(); |
508 | 9.77k | CachedCompletionTypes.clear(); |
509 | 9.77k | CachedCompletionAllocator = nullptr; |
510 | 9.77k | } |
511 | | |
512 | | namespace { |
513 | | |
514 | | /// Gathers information from ASTReader that will be used to initialize |
515 | | /// a Preprocessor. |
516 | | class ASTInfoCollector : public ASTReaderListener { |
517 | | Preprocessor &PP; |
518 | | ASTContext *Context; |
519 | | HeaderSearchOptions &HSOpts; |
520 | | PreprocessorOptions &PPOpts; |
521 | | LangOptions &LangOpt; |
522 | | std::shared_ptr<TargetOptions> &TargetOpts; |
523 | | IntrusiveRefCntPtr<TargetInfo> &Target; |
524 | | unsigned &Counter; |
525 | | bool InitializedLanguage = false; |
526 | | bool InitializedHeaderSearchPaths = false; |
527 | | |
528 | | public: |
529 | | ASTInfoCollector(Preprocessor &PP, ASTContext *Context, |
530 | | HeaderSearchOptions &HSOpts, PreprocessorOptions &PPOpts, |
531 | | LangOptions &LangOpt, |
532 | | std::shared_ptr<TargetOptions> &TargetOpts, |
533 | | IntrusiveRefCntPtr<TargetInfo> &Target, unsigned &Counter) |
534 | 235 | : PP(PP), Context(Context), HSOpts(HSOpts), PPOpts(PPOpts), |
535 | 235 | LangOpt(LangOpt), TargetOpts(TargetOpts), Target(Target), |
536 | 235 | Counter(Counter) {} |
537 | | |
538 | | bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain, |
539 | 234 | bool AllowCompatibleDifferences) override { |
540 | 234 | if (InitializedLanguage) |
541 | 0 | return false; |
542 | | |
543 | 234 | LangOpt = LangOpts; |
544 | 234 | InitializedLanguage = true; |
545 | | |
546 | 234 | updated(); |
547 | 234 | return false; |
548 | 234 | } |
549 | | |
550 | | bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts, |
551 | | StringRef SpecificModuleCachePath, |
552 | 234 | bool Complain) override { |
553 | | // llvm::SaveAndRestore doesn't support bit field. |
554 | 234 | auto ForceCheckCXX20ModulesInputFiles = |
555 | 234 | this->HSOpts.ForceCheckCXX20ModulesInputFiles; |
556 | 234 | llvm::SaveAndRestore X(this->HSOpts.UserEntries); |
557 | 234 | llvm::SaveAndRestore Y(this->HSOpts.SystemHeaderPrefixes); |
558 | 234 | llvm::SaveAndRestore Z(this->HSOpts.VFSOverlayFiles); |
559 | | |
560 | 234 | this->HSOpts = HSOpts; |
561 | 234 | this->HSOpts.ForceCheckCXX20ModulesInputFiles = |
562 | 234 | ForceCheckCXX20ModulesInputFiles; |
563 | | |
564 | 234 | return false; |
565 | 234 | } |
566 | | |
567 | | bool ReadHeaderSearchPaths(const HeaderSearchOptions &HSOpts, |
568 | 251 | bool Complain) override { |
569 | 251 | if (InitializedHeaderSearchPaths) |
570 | 21 | return false; |
571 | | |
572 | 230 | this->HSOpts.UserEntries = HSOpts.UserEntries; |
573 | 230 | this->HSOpts.SystemHeaderPrefixes = HSOpts.SystemHeaderPrefixes; |
574 | 230 | this->HSOpts.VFSOverlayFiles = HSOpts.VFSOverlayFiles; |
575 | | |
576 | | // Initialize the FileManager. We can't do this in update(), since that |
577 | | // performs the initialization too late (once both target and language |
578 | | // options are read). |
579 | 230 | PP.getFileManager().setVirtualFileSystem(createVFSFromOverlayFiles( |
580 | 230 | HSOpts.VFSOverlayFiles, PP.getDiagnostics(), |
581 | 230 | PP.getFileManager().getVirtualFileSystemPtr())); |
582 | | |
583 | 230 | InitializedHeaderSearchPaths = true; |
584 | | |
585 | 230 | return false; |
586 | 251 | } |
587 | | |
588 | | bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, |
589 | | bool ReadMacros, bool Complain, |
590 | 234 | std::string &SuggestedPredefines) override { |
591 | 234 | this->PPOpts = PPOpts; |
592 | 234 | return false; |
593 | 234 | } |
594 | | |
595 | | bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain, |
596 | 234 | bool AllowCompatibleDifferences) override { |
597 | | // If we've already initialized the target, don't do it again. |
598 | 234 | if (Target) |
599 | 0 | return false; |
600 | | |
601 | 234 | this->TargetOpts = std::make_shared<TargetOptions>(TargetOpts); |
602 | 234 | Target = |
603 | 234 | TargetInfo::CreateTargetInfo(PP.getDiagnostics(), this->TargetOpts); |
604 | | |
605 | 234 | updated(); |
606 | 234 | return false; |
607 | 234 | } |
608 | | |
609 | | void ReadCounter(const serialization::ModuleFile &M, |
610 | 0 | unsigned Value) override { |
611 | 0 | Counter = Value; |
612 | 0 | } |
613 | | |
614 | | private: |
615 | 468 | void updated() { |
616 | 468 | if (!Target || !InitializedLanguage234 ) |
617 | 234 | return; |
618 | | |
619 | | // Inform the target of the language options. |
620 | | // |
621 | | // FIXME: We shouldn't need to do this, the target should be immutable once |
622 | | // created. This complexity should be lifted elsewhere. |
623 | 234 | Target->adjust(PP.getDiagnostics(), LangOpt); |
624 | | |
625 | | // Initialize the preprocessor. |
626 | 234 | PP.Initialize(*Target); |
627 | | |
628 | 234 | if (!Context) |
629 | 13 | return; |
630 | | |
631 | | // Initialize the ASTContext |
632 | 221 | Context->InitBuiltinTypes(*Target); |
633 | | |
634 | | // Adjust printing policy based on language options. |
635 | 221 | Context->setPrintingPolicy(PrintingPolicy(LangOpt)); |
636 | | |
637 | | // We didn't have access to the comment options when the ASTContext was |
638 | | // constructed, so register them now. |
639 | 221 | Context->getCommentCommandTraits().registerCommentOptions( |
640 | 221 | LangOpt.CommentOpts); |
641 | 221 | } |
642 | | }; |
643 | | |
644 | | /// Diagnostic consumer that saves each diagnostic it is given. |
645 | | class FilterAndStoreDiagnosticConsumer : public DiagnosticConsumer { |
646 | | SmallVectorImpl<StoredDiagnostic> *StoredDiags; |
647 | | SmallVectorImpl<ASTUnit::StandaloneDiagnostic> *StandaloneDiags; |
648 | | bool CaptureNonErrorsFromIncludes = true; |
649 | | const LangOptions *LangOpts = nullptr; |
650 | | SourceManager *SourceMgr = nullptr; |
651 | | |
652 | | public: |
653 | | FilterAndStoreDiagnosticConsumer( |
654 | | SmallVectorImpl<StoredDiagnostic> *StoredDiags, |
655 | | SmallVectorImpl<ASTUnit::StandaloneDiagnostic> *StandaloneDiags, |
656 | | bool CaptureNonErrorsFromIncludes) |
657 | 2.96k | : StoredDiags(StoredDiags), StandaloneDiags(StandaloneDiags), |
658 | 2.96k | CaptureNonErrorsFromIncludes(CaptureNonErrorsFromIncludes) { |
659 | 2.96k | assert((StoredDiags || StandaloneDiags) && |
660 | 2.96k | "No output collections were passed to StoredDiagnosticConsumer."); |
661 | 2.96k | } |
662 | | |
663 | | void BeginSourceFile(const LangOptions &LangOpts, |
664 | 2.74k | const Preprocessor *PP = nullptr) override { |
665 | 2.74k | this->LangOpts = &LangOpts; |
666 | 2.74k | if (PP) |
667 | 2.74k | SourceMgr = &PP->getSourceManager(); |
668 | 2.74k | } |
669 | | |
670 | | void HandleDiagnostic(DiagnosticsEngine::Level Level, |
671 | | const Diagnostic &Info) override; |
672 | | }; |
673 | | |
674 | | /// RAII object that optionally captures and filters diagnostics, if |
675 | | /// there is no diagnostic client to capture them already. |
676 | | class CaptureDroppedDiagnostics { |
677 | | DiagnosticsEngine &Diags; |
678 | | FilterAndStoreDiagnosticConsumer Client; |
679 | | DiagnosticConsumer *PreviousClient = nullptr; |
680 | | std::unique_ptr<DiagnosticConsumer> OwningPreviousClient; |
681 | | |
682 | | public: |
683 | | CaptureDroppedDiagnostics( |
684 | | CaptureDiagsKind CaptureDiagnostics, DiagnosticsEngine &Diags, |
685 | | SmallVectorImpl<StoredDiagnostic> *StoredDiags, |
686 | | SmallVectorImpl<ASTUnit::StandaloneDiagnostic> *StandaloneDiags) |
687 | 1.85k | : Diags(Diags), |
688 | 1.85k | Client(StoredDiags, StandaloneDiags, |
689 | 1.85k | CaptureDiagnostics != |
690 | 1.85k | CaptureDiagsKind::AllWithoutNonErrorsFromIncludes) { |
691 | 1.85k | if (CaptureDiagnostics != CaptureDiagsKind::None || |
692 | 1.85k | Diags.getClient() == nullptr0 ) { |
693 | 1.85k | OwningPreviousClient = Diags.takeClient(); |
694 | 1.85k | PreviousClient = Diags.getClient(); |
695 | 1.85k | Diags.setClient(&Client, false); |
696 | 1.85k | } |
697 | 1.85k | } |
698 | | |
699 | 1.84k | ~CaptureDroppedDiagnostics() { |
700 | 1.84k | if (Diags.getClient() == &Client) |
701 | 1.84k | Diags.setClient(PreviousClient, !!OwningPreviousClient.release()); |
702 | 1.84k | } |
703 | | }; |
704 | | |
705 | | } // namespace |
706 | | |
707 | | static ASTUnit::StandaloneDiagnostic |
708 | | makeStandaloneDiagnostic(const LangOptions &LangOpts, |
709 | | const StoredDiagnostic &InDiag); |
710 | | |
711 | 2 | static bool isInMainFile(const clang::Diagnostic &D) { |
712 | 2 | if (!D.hasSourceManager() || !D.getLocation().isValid()) |
713 | 0 | return false; |
714 | | |
715 | 2 | auto &M = D.getSourceManager(); |
716 | 2 | return M.isWrittenInMainFile(M.getExpansionLoc(D.getLocation())); |
717 | 2 | } |
718 | | |
719 | | void FilterAndStoreDiagnosticConsumer::HandleDiagnostic( |
720 | 9.95k | DiagnosticsEngine::Level Level, const Diagnostic &Info) { |
721 | | // Default implementation (Warnings/errors count). |
722 | 9.95k | DiagnosticConsumer::HandleDiagnostic(Level, Info); |
723 | | |
724 | | // Only record the diagnostic if it's part of the source manager we know |
725 | | // about. This effectively drops diagnostics from modules we're building. |
726 | | // FIXME: In the long run, ee don't want to drop source managers from modules. |
727 | 9.95k | if (!Info.hasSourceManager() || &Info.getSourceManager() == SourceMgr9.92k ) { |
728 | 9.93k | if (!CaptureNonErrorsFromIncludes && Level <= DiagnosticsEngine::Warning2 && |
729 | 9.93k | !isInMainFile(Info)2 ) { |
730 | 1 | return; |
731 | 1 | } |
732 | | |
733 | 9.93k | StoredDiagnostic *ResultDiag = nullptr; |
734 | 9.93k | if (StoredDiags) { |
735 | 9.93k | StoredDiags->emplace_back(Level, Info); |
736 | 9.93k | ResultDiag = &StoredDiags->back(); |
737 | 9.93k | } |
738 | | |
739 | 9.93k | if (StandaloneDiags) { |
740 | 25 | std::optional<StoredDiagnostic> StoredDiag; |
741 | 25 | if (!ResultDiag) { |
742 | 0 | StoredDiag.emplace(Level, Info); |
743 | 0 | ResultDiag = &*StoredDiag; |
744 | 0 | } |
745 | 25 | StandaloneDiags->push_back( |
746 | 25 | makeStandaloneDiagnostic(*LangOpts, *ResultDiag)); |
747 | 25 | } |
748 | 9.93k | } |
749 | 9.95k | } |
750 | | |
751 | 30 | IntrusiveRefCntPtr<ASTReader> ASTUnit::getASTReader() const { |
752 | 30 | return Reader; |
753 | 30 | } |
754 | | |
755 | 23.8k | ASTMutationListener *ASTUnit::getASTMutationListener() { |
756 | 23.8k | if (WriterData) |
757 | 60 | return &WriterData->Writer; |
758 | 23.7k | return nullptr; |
759 | 23.8k | } |
760 | | |
761 | 594 | ASTDeserializationListener *ASTUnit::getDeserializationListener() { |
762 | 594 | if (WriterData) |
763 | 7 | return &WriterData->Writer; |
764 | 587 | return nullptr; |
765 | 594 | } |
766 | | |
767 | | std::unique_ptr<llvm::MemoryBuffer> |
768 | 329 | ASTUnit::getBufferForFile(StringRef Filename, std::string *ErrorStr) { |
769 | 329 | assert(FileMgr); |
770 | 329 | auto Buffer = FileMgr->getBufferForFile(Filename, UserFilesAreVolatile); |
771 | 329 | if (Buffer) |
772 | 329 | return std::move(*Buffer); |
773 | 0 | if (ErrorStr) |
774 | 0 | *ErrorStr = Buffer.getError().message(); |
775 | 0 | return nullptr; |
776 | 329 | } |
777 | | |
778 | | /// Configure the diagnostics object for use with ASTUnit. |
779 | | void ASTUnit::ConfigureDiags(IntrusiveRefCntPtr<DiagnosticsEngine> Diags, |
780 | | ASTUnit &AST, |
781 | 9.68k | CaptureDiagsKind CaptureDiagnostics) { |
782 | 9.68k | assert(Diags.get() && "no DiagnosticsEngine was provided"); |
783 | 9.68k | if (CaptureDiagnostics != CaptureDiagsKind::None) |
784 | 1.11k | Diags->setClient(new FilterAndStoreDiagnosticConsumer( |
785 | 1.11k | &AST.StoredDiagnostics, nullptr, |
786 | 1.11k | CaptureDiagnostics != CaptureDiagsKind::AllWithoutNonErrorsFromIncludes)); |
787 | 9.68k | } |
788 | | |
789 | | std::unique_ptr<ASTUnit> ASTUnit::LoadFromASTFile( |
790 | | const std::string &Filename, const PCHContainerReader &PCHContainerRdr, |
791 | | WhatToLoad ToLoad, IntrusiveRefCntPtr<DiagnosticsEngine> Diags, |
792 | | const FileSystemOptions &FileSystemOpts, |
793 | | std::shared_ptr<HeaderSearchOptions> HSOpts, bool UseDebugInfo, |
794 | | bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics, |
795 | | bool AllowASTWithCompilerErrors, bool UserFilesAreVolatile, |
796 | 235 | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) { |
797 | 235 | std::unique_ptr<ASTUnit> AST(new ASTUnit(true)); |
798 | | |
799 | | // Recover resources if we crash before exiting this method. |
800 | 235 | llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> |
801 | 235 | ASTUnitCleanup(AST.get()); |
802 | 235 | llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine, |
803 | 235 | llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine>> |
804 | 235 | DiagCleanup(Diags.get()); |
805 | | |
806 | 235 | ConfigureDiags(Diags, *AST, CaptureDiagnostics); |
807 | | |
808 | 235 | AST->LangOpts = std::make_shared<LangOptions>(); |
809 | 235 | AST->OnlyLocalDecls = OnlyLocalDecls; |
810 | 235 | AST->CaptureDiagnostics = CaptureDiagnostics; |
811 | 235 | AST->Diagnostics = Diags; |
812 | 235 | AST->FileMgr = new FileManager(FileSystemOpts, VFS); |
813 | 235 | AST->UserFilesAreVolatile = UserFilesAreVolatile; |
814 | 235 | AST->SourceMgr = new SourceManager(AST->getDiagnostics(), |
815 | 235 | AST->getFileManager(), |
816 | 235 | UserFilesAreVolatile); |
817 | 235 | AST->ModuleCache = new InMemoryModuleCache; |
818 | 235 | AST->HSOpts = HSOpts ? HSOpts222 : std::make_shared<HeaderSearchOptions>()13 ; |
819 | 235 | AST->HSOpts->ModuleFormat = std::string(PCHContainerRdr.getFormats().front()); |
820 | 235 | AST->HeaderInfo.reset(new HeaderSearch(AST->HSOpts, |
821 | 235 | AST->getSourceManager(), |
822 | 235 | AST->getDiagnostics(), |
823 | 235 | AST->getLangOpts(), |
824 | 235 | /*Target=*/nullptr)); |
825 | 235 | AST->PPOpts = std::make_shared<PreprocessorOptions>(); |
826 | | |
827 | | // Gather Info for preprocessor construction later on. |
828 | | |
829 | 235 | HeaderSearch &HeaderInfo = *AST->HeaderInfo; |
830 | | |
831 | 235 | AST->PP = std::make_shared<Preprocessor>( |
832 | 235 | AST->PPOpts, AST->getDiagnostics(), *AST->LangOpts, |
833 | 235 | AST->getSourceManager(), HeaderInfo, AST->ModuleLoader, |
834 | 235 | /*IILookup=*/nullptr, |
835 | 235 | /*OwnsHeaderSearch=*/false); |
836 | 235 | Preprocessor &PP = *AST->PP; |
837 | | |
838 | 235 | if (ToLoad >= LoadASTOnly) |
839 | 222 | AST->Ctx = new ASTContext(*AST->LangOpts, AST->getSourceManager(), |
840 | 222 | PP.getIdentifierTable(), PP.getSelectorTable(), |
841 | 222 | PP.getBuiltinInfo(), |
842 | 222 | AST->getTranslationUnitKind()); |
843 | | |
844 | 235 | DisableValidationForModuleKind disableValid = |
845 | 235 | DisableValidationForModuleKind::None; |
846 | 235 | if (::getenv("LIBCLANG_DISABLE_PCH_VALIDATION")) |
847 | 0 | disableValid = DisableValidationForModuleKind::All; |
848 | 235 | AST->Reader = new ASTReader( |
849 | 235 | PP, *AST->ModuleCache, AST->Ctx.get(), PCHContainerRdr, {}, |
850 | 235 | /*isysroot=*/"", |
851 | 235 | /*DisableValidationKind=*/disableValid, AllowASTWithCompilerErrors); |
852 | | |
853 | 235 | unsigned Counter = 0; |
854 | 235 | AST->Reader->setListener(std::make_unique<ASTInfoCollector>( |
855 | 235 | *AST->PP, AST->Ctx.get(), *AST->HSOpts, *AST->PPOpts, *AST->LangOpts, |
856 | 235 | AST->TargetOpts, AST->Target, Counter)); |
857 | | |
858 | | // Attach the AST reader to the AST context as an external AST |
859 | | // source, so that declarations will be deserialized from the |
860 | | // AST file as needed. |
861 | | // We need the external source to be set up before we read the AST, because |
862 | | // eagerly-deserialized declarations may use it. |
863 | 235 | if (AST->Ctx) |
864 | 222 | AST->Ctx->setExternalSource(AST->Reader); |
865 | | |
866 | 235 | switch (AST->Reader->ReadAST(Filename, serialization::MK_MainFile, |
867 | 235 | SourceLocation(), ASTReader::ARR_None)) { |
868 | 232 | case ASTReader::Success: |
869 | 232 | break; |
870 | | |
871 | 1 | case ASTReader::Failure: |
872 | 1 | case ASTReader::Missing: |
873 | 3 | case ASTReader::OutOfDate: |
874 | 3 | case ASTReader::VersionMismatch: |
875 | 3 | case ASTReader::ConfigurationMismatch: |
876 | 3 | case ASTReader::HadErrors: |
877 | 3 | AST->getDiagnostics().Report(diag::err_fe_unable_to_load_pch); |
878 | 3 | return nullptr; |
879 | 235 | } |
880 | | |
881 | 232 | AST->OriginalSourceFile = std::string(AST->Reader->getOriginalSourceFile()); |
882 | | |
883 | 232 | PP.setCounterValue(Counter); |
884 | | |
885 | 232 | Module *M = HeaderInfo.lookupModule(AST->getLangOpts().CurrentModule); |
886 | 232 | if (M && AST->getLangOpts().isCompilingModule()107 && M->isNamedModule()107 ) |
887 | 51 | AST->Ctx->setCurrentNamedModule(M); |
888 | | |
889 | | // Create an AST consumer, even though it isn't used. |
890 | 232 | if (ToLoad >= LoadASTOnly) |
891 | 219 | AST->Consumer.reset(new ASTConsumer); |
892 | | |
893 | | // Create a semantic analysis object and tell the AST reader about it. |
894 | 232 | if (ToLoad >= LoadEverything) { |
895 | 216 | AST->TheSema.reset(new Sema(PP, *AST->Ctx, *AST->Consumer)); |
896 | 216 | AST->TheSema->Initialize(); |
897 | 216 | AST->Reader->InitializeSema(*AST->TheSema); |
898 | 216 | } |
899 | | |
900 | | // Tell the diagnostic client that we have started a source file. |
901 | 232 | AST->getDiagnostics().getClient()->BeginSourceFile(PP.getLangOpts(), &PP); |
902 | | |
903 | 232 | return AST; |
904 | 235 | } |
905 | | |
906 | | /// Add the given macro to the hash of all top-level entities. |
907 | 4.15M | static void AddDefinedMacroToHash(const Token &MacroNameTok, unsigned &Hash) { |
908 | 4.15M | Hash = llvm::djbHash(MacroNameTok.getIdentifierInfo()->getName(), Hash); |
909 | 4.15M | } |
910 | | |
911 | | namespace { |
912 | | |
913 | | /// Preprocessor callback class that updates a hash value with the names |
914 | | /// of all macros that have been defined by the translation unit. |
915 | | class MacroDefinitionTrackerPPCallbacks : public PPCallbacks { |
916 | | unsigned &Hash; |
917 | | |
918 | | public: |
919 | 10.3k | explicit MacroDefinitionTrackerPPCallbacks(unsigned &Hash) : Hash(Hash) {} |
920 | | |
921 | | void MacroDefined(const Token &MacroNameTok, |
922 | 4.15M | const MacroDirective *MD) override { |
923 | 4.15M | AddDefinedMacroToHash(MacroNameTok, Hash); |
924 | 4.15M | } |
925 | | }; |
926 | | |
927 | | } // namespace |
928 | | |
929 | | /// Add the given declaration to the hash of all top-level entities. |
930 | 36.0k | static void AddTopLevelDeclarationToHash(Decl *D, unsigned &Hash) { |
931 | 36.0k | if (!D) |
932 | 0 | return; |
933 | | |
934 | 36.0k | DeclContext *DC = D->getDeclContext(); |
935 | 36.0k | if (!DC) |
936 | 0 | return; |
937 | | |
938 | 36.0k | if (!(DC->isTranslationUnit() || DC->getLookupParent()->isTranslationUnit()969 )) |
939 | 335 | return; |
940 | | |
941 | 35.7k | if (const auto *ND = dyn_cast<NamedDecl>(D)) { |
942 | 35.3k | if (const auto *EnumD = dyn_cast<EnumDecl>(D)) { |
943 | | // For an unscoped enum include the enumerators in the hash since they |
944 | | // enter the top-level namespace. |
945 | 457 | if (!EnumD->isScoped()) { |
946 | 440 | for (const auto *EI : EnumD->enumerators()) { |
947 | 440 | if (EI->getIdentifier()) |
948 | 440 | Hash = llvm::djbHash(EI->getIdentifier()->getName(), Hash); |
949 | 440 | } |
950 | 321 | } |
951 | 457 | } |
952 | | |
953 | 35.3k | if (ND->getIdentifier()) |
954 | 33.4k | Hash = llvm::djbHash(ND->getIdentifier()->getName(), Hash); |
955 | 1.94k | else if (DeclarationName Name = ND->getDeclName()) { |
956 | 952 | std::string NameStr = Name.getAsString(); |
957 | 952 | Hash = llvm::djbHash(NameStr, Hash); |
958 | 952 | } |
959 | 35.3k | return; |
960 | 35.3k | } |
961 | | |
962 | 392 | if (const auto *ImportD = dyn_cast<ImportDecl>(D)) { |
963 | 60 | if (const Module *Mod = ImportD->getImportedModule()) { |
964 | 60 | std::string ModName = Mod->getFullModuleName(); |
965 | 60 | Hash = llvm::djbHash(ModName, Hash); |
966 | 60 | } |
967 | 60 | return; |
968 | 60 | } |
969 | 392 | } |
970 | | |
971 | | namespace { |
972 | | |
973 | | class TopLevelDeclTrackerConsumer : public ASTConsumer { |
974 | | ASTUnit &Unit; |
975 | | unsigned &Hash; |
976 | | |
977 | | public: |
978 | | TopLevelDeclTrackerConsumer(ASTUnit &_Unit, unsigned &Hash) |
979 | 10.2k | : Unit(_Unit), Hash(Hash) { |
980 | 10.2k | Hash = 0; |
981 | 10.2k | } |
982 | | |
983 | 38.0k | void handleTopLevelDecl(Decl *D) { |
984 | 38.0k | if (!D) |
985 | 0 | return; |
986 | | |
987 | | // FIXME: Currently ObjC method declarations are incorrectly being |
988 | | // reported as top-level declarations, even though their DeclContext |
989 | | // is the containing ObjC @interface/@implementation. This is a |
990 | | // fundamental problem in the parser right now. |
991 | 38.0k | if (isa<ObjCMethodDecl>(D)) |
992 | 2.09k | return; |
993 | | |
994 | 35.9k | AddTopLevelDeclarationToHash(D, Hash); |
995 | 35.9k | Unit.addTopLevelDecl(D); |
996 | | |
997 | 35.9k | handleFileLevelDecl(D); |
998 | 35.9k | } |
999 | | |
1000 | 111k | void handleFileLevelDecl(Decl *D) { |
1001 | 111k | Unit.addFileLevelDecl(D); |
1002 | 111k | if (auto *NSD = dyn_cast<NamespaceDecl>(D)) { |
1003 | 6.81k | for (auto *I : NSD->decls()) |
1004 | 75.7k | handleFileLevelDecl(I); |
1005 | 6.81k | } |
1006 | 111k | } |
1007 | | |
1008 | 35.0k | bool HandleTopLevelDecl(DeclGroupRef D) override { |
1009 | 35.0k | for (auto *TopLevelDecl : D) |
1010 | 38.0k | handleTopLevelDecl(TopLevelDecl); |
1011 | 35.0k | return true; |
1012 | 35.0k | } |
1013 | | |
1014 | | // We're not interested in "interesting" decls. |
1015 | 79 | void HandleInterestingDecl(DeclGroupRef) override {} |
1016 | | |
1017 | 17 | void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) override { |
1018 | 17 | for (auto *TopLevelDecl : D) |
1019 | 9 | handleTopLevelDecl(TopLevelDecl); |
1020 | 17 | } |
1021 | | |
1022 | 23.8k | ASTMutationListener *GetASTMutationListener() override { |
1023 | 23.8k | return Unit.getASTMutationListener(); |
1024 | 23.8k | } |
1025 | | |
1026 | 594 | ASTDeserializationListener *GetASTDeserializationListener() override { |
1027 | 594 | return Unit.getDeserializationListener(); |
1028 | 594 | } |
1029 | | }; |
1030 | | |
1031 | | class TopLevelDeclTrackerAction : public ASTFrontendAction { |
1032 | | public: |
1033 | | ASTUnit &Unit; |
1034 | | |
1035 | | std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI, |
1036 | 10.1k | StringRef InFile) override { |
1037 | 10.1k | CI.getPreprocessor().addPPCallbacks( |
1038 | 10.1k | std::make_unique<MacroDefinitionTrackerPPCallbacks>( |
1039 | 10.1k | Unit.getCurrentTopLevelHashValue())); |
1040 | 10.1k | return std::make_unique<TopLevelDeclTrackerConsumer>( |
1041 | 10.1k | Unit, Unit.getCurrentTopLevelHashValue()); |
1042 | 10.1k | } |
1043 | | |
1044 | | public: |
1045 | 10.1k | TopLevelDeclTrackerAction(ASTUnit &_Unit) : Unit(_Unit) {} |
1046 | | |
1047 | 10.1k | bool hasCodeCompletionSupport() const override { return false; } |
1048 | | |
1049 | 20.2k | TranslationUnitKind getTranslationUnitKind() override { |
1050 | 20.2k | return Unit.getTranslationUnitKind(); |
1051 | 20.2k | } |
1052 | | }; |
1053 | | |
1054 | | class ASTUnitPreambleCallbacks : public PreambleCallbacks { |
1055 | | public: |
1056 | 99 | unsigned getHash() const { return Hash; } |
1057 | | |
1058 | 0 | std::vector<Decl *> takeTopLevelDecls() { return std::move(TopLevelDecls); } |
1059 | | |
1060 | 99 | std::vector<serialization::DeclID> takeTopLevelDeclIDs() { |
1061 | 99 | return std::move(TopLevelDeclIDs); |
1062 | 99 | } |
1063 | | |
1064 | 99 | void AfterPCHEmitted(ASTWriter &Writer) override { |
1065 | 99 | TopLevelDeclIDs.reserve(TopLevelDecls.size()); |
1066 | 99 | for (const auto *D : TopLevelDecls) { |
1067 | | // Invalid top-level decls may not have been serialized. |
1068 | 93 | if (D->isInvalidDecl()) |
1069 | 6 | continue; |
1070 | 87 | TopLevelDeclIDs.push_back(Writer.getDeclID(D)); |
1071 | 87 | } |
1072 | 99 | } |
1073 | | |
1074 | 88 | void HandleTopLevelDecl(DeclGroupRef DG) override { |
1075 | 93 | for (auto *D : DG) { |
1076 | | // FIXME: Currently ObjC method declarations are incorrectly being |
1077 | | // reported as top-level declarations, even though their DeclContext |
1078 | | // is the containing ObjC @interface/@implementation. This is a |
1079 | | // fundamental problem in the parser right now. |
1080 | 93 | if (isa<ObjCMethodDecl>(D)) |
1081 | 0 | continue; |
1082 | 93 | AddTopLevelDeclarationToHash(D, Hash); |
1083 | 93 | TopLevelDecls.push_back(D); |
1084 | 93 | } |
1085 | 88 | } |
1086 | | |
1087 | 99 | std::unique_ptr<PPCallbacks> createPPCallbacks() override { |
1088 | 99 | return std::make_unique<MacroDefinitionTrackerPPCallbacks>(Hash); |
1089 | 99 | } |
1090 | | |
1091 | | private: |
1092 | | unsigned Hash = 0; |
1093 | | std::vector<Decl *> TopLevelDecls; |
1094 | | std::vector<serialization::DeclID> TopLevelDeclIDs; |
1095 | | llvm::SmallVector<ASTUnit::StandaloneDiagnostic, 4> PreambleDiags; |
1096 | | }; |
1097 | | |
1098 | | } // namespace |
1099 | | |
1100 | 4.46k | static bool isNonDriverDiag(const StoredDiagnostic &StoredDiag) { |
1101 | 4.46k | return StoredDiag.getLocation().isValid(); |
1102 | 4.46k | } |
1103 | | |
1104 | | static void |
1105 | 9.90k | checkAndRemoveNonDriverDiags(SmallVectorImpl<StoredDiagnostic> &StoredDiags) { |
1106 | | // Get rid of stored diagnostics except the ones from the driver which do not |
1107 | | // have a source location. |
1108 | 9.90k | llvm::erase_if(StoredDiags, isNonDriverDiag); |
1109 | 9.90k | } |
1110 | | |
1111 | | static void checkAndSanitizeDiags(SmallVectorImpl<StoredDiagnostic> & |
1112 | | StoredDiagnostics, |
1113 | 272 | SourceManager &SM) { |
1114 | | // The stored diagnostic has the old source manager in it; update |
1115 | | // the locations to refer into the new source manager. Since we've |
1116 | | // been careful to make sure that the source manager's state |
1117 | | // before and after are identical, so that we can reuse the source |
1118 | | // location itself. |
1119 | 272 | for (auto &SD : StoredDiagnostics) { |
1120 | 97 | if (SD.getLocation().isValid()) { |
1121 | 97 | FullSourceLoc Loc(SD.getLocation(), SM); |
1122 | 97 | SD.setLocation(Loc); |
1123 | 97 | } |
1124 | 97 | } |
1125 | 272 | } |
1126 | | |
1127 | | /// Parse the source file into a translation unit using the given compiler |
1128 | | /// invocation, replacing the current translation unit. |
1129 | | /// |
1130 | | /// \returns True if a failure occurred that causes the ASTUnit not to |
1131 | | /// contain any translation-unit information, false otherwise. |
1132 | | bool ASTUnit::Parse(std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1133 | | std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer, |
1134 | 10.0k | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) { |
1135 | 10.0k | if (!Invocation) |
1136 | 0 | return true; |
1137 | | |
1138 | 10.0k | if (VFS && FileMgr) |
1139 | 9.24k | assert(VFS == &FileMgr->getVirtualFileSystem() && |
1140 | 10.0k | "VFS passed to Parse and VFS in FileMgr are different"); |
1141 | | |
1142 | 10.0k | auto CCInvocation = std::make_shared<CompilerInvocation>(*Invocation); |
1143 | 10.0k | if (OverrideMainBuffer) { |
1144 | 272 | assert(Preamble && |
1145 | 272 | "No preamble was built, but OverrideMainBuffer is not null"); |
1146 | 272 | Preamble->AddImplicitPreamble(*CCInvocation, VFS, OverrideMainBuffer.get()); |
1147 | | // VFS may have changed... |
1148 | 272 | } |
1149 | | |
1150 | | // Create the compiler instance to use for building the AST. |
1151 | 10.0k | std::unique_ptr<CompilerInstance> Clang( |
1152 | 10.0k | new CompilerInstance(std::move(PCHContainerOps))); |
1153 | 10.0k | Clang->setInvocation(CCInvocation); |
1154 | | |
1155 | | // Clean up on error, disengage it if the function returns successfully. |
1156 | 10.0k | auto CleanOnError = llvm::make_scope_exit([&]() { |
1157 | | // Remove the overridden buffer we used for the preamble. |
1158 | 3 | SavedMainFileBuffer = nullptr; |
1159 | | |
1160 | | // Keep the ownership of the data in the ASTUnit because the client may |
1161 | | // want to see the diagnostics. |
1162 | 3 | transferASTDataFromCompilerInstance(*Clang); |
1163 | 3 | FailedParseDiagnostics.swap(StoredDiagnostics); |
1164 | 3 | StoredDiagnostics.clear(); |
1165 | 3 | NumStoredDiagnosticsFromDriver = 0; |
1166 | 3 | }); |
1167 | | |
1168 | | // Ensure that Clang has a FileManager with the right VFS, which may have |
1169 | | // changed above in AddImplicitPreamble. If VFS is nullptr, rely on |
1170 | | // createFileManager to create one. |
1171 | 10.0k | if (VFS && FileMgr && &FileMgr->getVirtualFileSystem() == VFS9.24k ) |
1172 | 9.23k | Clang->setFileManager(&*FileMgr); |
1173 | 837 | else |
1174 | 837 | FileMgr = Clang->createFileManager(std::move(VFS)); |
1175 | | |
1176 | | // Recover resources if we crash before exiting this method. |
1177 | 10.0k | llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> |
1178 | 10.0k | CICleanup(Clang.get()); |
1179 | | |
1180 | 10.0k | OriginalSourceFile = |
1181 | 10.0k | std::string(Clang->getFrontendOpts().Inputs[0].getFile()); |
1182 | | |
1183 | | // Set up diagnostics, capturing any diagnostics that would |
1184 | | // otherwise be dropped. |
1185 | 10.0k | Clang->setDiagnostics(&getDiagnostics()); |
1186 | | |
1187 | | // Create the target instance. |
1188 | 10.0k | if (!Clang->createTarget()) |
1189 | 1 | return true; |
1190 | | |
1191 | 10.0k | assert(Clang->getFrontendOpts().Inputs.size() == 1 && |
1192 | 10.0k | "Invocation must have exactly one source file!"); |
1193 | 10.0k | assert(Clang->getFrontendOpts().Inputs[0].getKind().getFormat() == |
1194 | 10.0k | InputKind::Source && |
1195 | 10.0k | "FIXME: AST inputs not yet supported here!"); |
1196 | 10.0k | assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() != |
1197 | 10.0k | Language::LLVM_IR && |
1198 | 10.0k | "IR inputs not support here!"); |
1199 | | |
1200 | | // Configure the various subsystems. |
1201 | 10.0k | LangOpts = Clang->getInvocation().LangOpts; |
1202 | 10.0k | FileSystemOpts = Clang->getFileSystemOpts(); |
1203 | | |
1204 | 10.0k | ResetForParse(); |
1205 | | |
1206 | 10.0k | SourceMgr = new SourceManager(getDiagnostics(), *FileMgr, |
1207 | 10.0k | UserFilesAreVolatile); |
1208 | 10.0k | if (!OverrideMainBuffer) { |
1209 | 9.80k | checkAndRemoveNonDriverDiags(StoredDiagnostics); |
1210 | 9.80k | TopLevelDeclsInPreamble.clear(); |
1211 | 9.80k | } |
1212 | | |
1213 | | // Create the source manager. |
1214 | 10.0k | Clang->setSourceManager(&getSourceManager()); |
1215 | | |
1216 | | // If the main file has been overridden due to the use of a preamble, |
1217 | | // make that override happen and introduce the preamble. |
1218 | 10.0k | if (OverrideMainBuffer) { |
1219 | | // The stored diagnostic has the old source manager in it; update |
1220 | | // the locations to refer into the new source manager. Since we've |
1221 | | // been careful to make sure that the source manager's state |
1222 | | // before and after are identical, so that we can reuse the source |
1223 | | // location itself. |
1224 | 272 | checkAndSanitizeDiags(StoredDiagnostics, getSourceManager()); |
1225 | | |
1226 | | // Keep track of the override buffer; |
1227 | 272 | SavedMainFileBuffer = std::move(OverrideMainBuffer); |
1228 | 272 | } |
1229 | | |
1230 | 10.0k | std::unique_ptr<TopLevelDeclTrackerAction> Act( |
1231 | 10.0k | new TopLevelDeclTrackerAction(*this)); |
1232 | | |
1233 | | // Recover resources if we crash before exiting this method. |
1234 | 10.0k | llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction> |
1235 | 10.0k | ActCleanup(Act.get()); |
1236 | | |
1237 | 10.0k | if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) |
1238 | 2 | return true; |
1239 | | |
1240 | 10.0k | if (SavedMainFileBuffer) |
1241 | 272 | TranslateStoredDiagnostics(getFileManager(), getSourceManager(), |
1242 | 272 | PreambleDiagnostics, StoredDiagnostics); |
1243 | 9.80k | else |
1244 | 9.80k | PreambleSrcLocCache.clear(); |
1245 | | |
1246 | 10.0k | if (llvm::Error Err = Act->Execute()) { |
1247 | 0 | consumeError(std::move(Err)); // FIXME this drops errors on the floor. |
1248 | 0 | return true; |
1249 | 0 | } |
1250 | | |
1251 | 10.0k | transferASTDataFromCompilerInstance(*Clang); |
1252 | | |
1253 | 10.0k | Act->EndSourceFile(); |
1254 | | |
1255 | 10.0k | FailedParseDiagnostics.clear(); |
1256 | | |
1257 | 10.0k | CleanOnError.release(); |
1258 | | |
1259 | 10.0k | return false; |
1260 | 10.0k | } |
1261 | | |
1262 | | static std::pair<unsigned, unsigned> |
1263 | | makeStandaloneRange(CharSourceRange Range, const SourceManager &SM, |
1264 | 17 | const LangOptions &LangOpts) { |
1265 | 17 | CharSourceRange FileRange = Lexer::makeFileCharRange(Range, SM, LangOpts); |
1266 | 17 | unsigned Offset = SM.getFileOffset(FileRange.getBegin()); |
1267 | 17 | unsigned EndOffset = SM.getFileOffset(FileRange.getEnd()); |
1268 | 17 | return std::make_pair(Offset, EndOffset); |
1269 | 17 | } |
1270 | | |
1271 | | static ASTUnit::StandaloneFixIt makeStandaloneFixIt(const SourceManager &SM, |
1272 | | const LangOptions &LangOpts, |
1273 | 3 | const FixItHint &InFix) { |
1274 | 3 | ASTUnit::StandaloneFixIt OutFix; |
1275 | 3 | OutFix.RemoveRange = makeStandaloneRange(InFix.RemoveRange, SM, LangOpts); |
1276 | 3 | OutFix.InsertFromRange = makeStandaloneRange(InFix.InsertFromRange, SM, |
1277 | 3 | LangOpts); |
1278 | 3 | OutFix.CodeToInsert = InFix.CodeToInsert; |
1279 | 3 | OutFix.BeforePreviousInsertions = InFix.BeforePreviousInsertions; |
1280 | 3 | return OutFix; |
1281 | 3 | } |
1282 | | |
1283 | | static ASTUnit::StandaloneDiagnostic |
1284 | | makeStandaloneDiagnostic(const LangOptions &LangOpts, |
1285 | 25 | const StoredDiagnostic &InDiag) { |
1286 | 25 | ASTUnit::StandaloneDiagnostic OutDiag; |
1287 | 25 | OutDiag.ID = InDiag.getID(); |
1288 | 25 | OutDiag.Level = InDiag.getLevel(); |
1289 | 25 | OutDiag.Message = std::string(InDiag.getMessage()); |
1290 | 25 | OutDiag.LocOffset = 0; |
1291 | 25 | if (InDiag.getLocation().isInvalid()) |
1292 | 0 | return OutDiag; |
1293 | 25 | const SourceManager &SM = InDiag.getLocation().getManager(); |
1294 | 25 | SourceLocation FileLoc = SM.getFileLoc(InDiag.getLocation()); |
1295 | 25 | OutDiag.Filename = std::string(SM.getFilename(FileLoc)); |
1296 | 25 | if (OutDiag.Filename.empty()) |
1297 | 0 | return OutDiag; |
1298 | 25 | OutDiag.LocOffset = SM.getFileOffset(FileLoc); |
1299 | 25 | for (const auto &Range : InDiag.getRanges()) |
1300 | 11 | OutDiag.Ranges.push_back(makeStandaloneRange(Range, SM, LangOpts)); |
1301 | 25 | for (const auto &FixIt : InDiag.getFixIts()) |
1302 | 3 | OutDiag.FixIts.push_back(makeStandaloneFixIt(SM, LangOpts, FixIt)); |
1303 | | |
1304 | 25 | return OutDiag; |
1305 | 25 | } |
1306 | | |
1307 | | /// Attempt to build or re-use a precompiled preamble when (re-)parsing |
1308 | | /// the source file. |
1309 | | /// |
1310 | | /// This routine will compute the preamble of the main source file. If a |
1311 | | /// non-trivial preamble is found, it will precompile that preamble into a |
1312 | | /// precompiled header so that the precompiled preamble can be used to reduce |
1313 | | /// reparsing time. If a precompiled preamble has already been constructed, |
1314 | | /// this routine will determine if it is still valid and, if so, avoid |
1315 | | /// rebuilding the precompiled preamble. |
1316 | | /// |
1317 | | /// \param AllowRebuild When true (the default), this routine is |
1318 | | /// allowed to rebuild the precompiled preamble if it is found to be |
1319 | | /// out-of-date. |
1320 | | /// |
1321 | | /// \param MaxLines When non-zero, the maximum number of lines that |
1322 | | /// can occur within the preamble. |
1323 | | /// |
1324 | | /// \returns If the precompiled preamble can be used, returns a newly-allocated |
1325 | | /// buffer that should be used in place of the main file when doing so. |
1326 | | /// Otherwise, returns a NULL pointer. |
1327 | | std::unique_ptr<llvm::MemoryBuffer> |
1328 | | ASTUnit::getMainBufferWithPrecompiledPreamble( |
1329 | | std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1330 | | CompilerInvocation &PreambleInvocationIn, |
1331 | | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS, bool AllowRebuild, |
1332 | 537 | unsigned MaxLines) { |
1333 | 537 | auto MainFilePath = |
1334 | 537 | PreambleInvocationIn.getFrontendOpts().Inputs[0].getFile(); |
1335 | 537 | std::unique_ptr<llvm::MemoryBuffer> MainFileBuffer = |
1336 | 537 | getBufferForFileHandlingRemapping(PreambleInvocationIn, VFS.get(), |
1337 | 537 | MainFilePath, UserFilesAreVolatile); |
1338 | 537 | if (!MainFileBuffer) |
1339 | 0 | return nullptr; |
1340 | | |
1341 | 537 | PreambleBounds Bounds = ComputePreambleBounds( |
1342 | 537 | PreambleInvocationIn.getLangOpts(), *MainFileBuffer, MaxLines); |
1343 | 537 | if (!Bounds.Size) |
1344 | 102 | return nullptr; |
1345 | | |
1346 | 435 | if (Preamble) { |
1347 | 258 | if (Preamble->CanReuse(PreambleInvocationIn, *MainFileBuffer, Bounds, |
1348 | 258 | *VFS)) { |
1349 | | // Okay! We can re-use the precompiled preamble. |
1350 | | |
1351 | | // Set the state of the diagnostic object to mimic its state |
1352 | | // after parsing the preamble. |
1353 | 248 | getDiagnostics().Reset(); |
1354 | 248 | ProcessWarningOptions(getDiagnostics(), |
1355 | 248 | PreambleInvocationIn.getDiagnosticOpts()); |
1356 | 248 | getDiagnostics().setNumWarnings(NumWarningsInPreamble); |
1357 | | |
1358 | 248 | PreambleRebuildCountdown = 1; |
1359 | 248 | return MainFileBuffer; |
1360 | 248 | } else { |
1361 | 10 | Preamble.reset(); |
1362 | 10 | PreambleDiagnostics.clear(); |
1363 | 10 | TopLevelDeclsInPreamble.clear(); |
1364 | 10 | PreambleSrcLocCache.clear(); |
1365 | 10 | PreambleRebuildCountdown = 1; |
1366 | 10 | } |
1367 | 258 | } |
1368 | | |
1369 | | // If the preamble rebuild counter > 1, it's because we previously |
1370 | | // failed to build a preamble and we're not yet ready to try |
1371 | | // again. Decrement the counter and return a failure. |
1372 | 187 | if (PreambleRebuildCountdown > 1) { |
1373 | 84 | --PreambleRebuildCountdown; |
1374 | 84 | return nullptr; |
1375 | 84 | } |
1376 | | |
1377 | 103 | assert(!Preamble && "No Preamble should be stored at that point"); |
1378 | | // If we aren't allowed to rebuild the precompiled preamble, just |
1379 | | // return now. |
1380 | 103 | if (!AllowRebuild) |
1381 | 4 | return nullptr; |
1382 | | |
1383 | 99 | ++PreambleCounter; |
1384 | | |
1385 | 99 | SmallVector<StandaloneDiagnostic, 4> NewPreambleDiagsStandalone; |
1386 | 99 | SmallVector<StoredDiagnostic, 4> NewPreambleDiags; |
1387 | 99 | ASTUnitPreambleCallbacks Callbacks; |
1388 | 99 | { |
1389 | 99 | std::optional<CaptureDroppedDiagnostics> Capture; |
1390 | 99 | if (CaptureDiagnostics != CaptureDiagsKind::None) |
1391 | 90 | Capture.emplace(CaptureDiagnostics, *Diagnostics, &NewPreambleDiags, |
1392 | 90 | &NewPreambleDiagsStandalone); |
1393 | | |
1394 | | // We did not previously compute a preamble, or it can't be reused anyway. |
1395 | 99 | SimpleTimer PreambleTimer(WantTiming); |
1396 | 99 | PreambleTimer.setOutput("Precompiling preamble"); |
1397 | | |
1398 | 99 | const bool PreviousSkipFunctionBodies = |
1399 | 99 | PreambleInvocationIn.getFrontendOpts().SkipFunctionBodies; |
1400 | 99 | if (SkipFunctionBodies == SkipFunctionBodiesScope::Preamble) |
1401 | 1 | PreambleInvocationIn.getFrontendOpts().SkipFunctionBodies = true; |
1402 | | |
1403 | 99 | llvm::ErrorOr<PrecompiledPreamble> NewPreamble = PrecompiledPreamble::Build( |
1404 | 99 | PreambleInvocationIn, MainFileBuffer.get(), Bounds, *Diagnostics, VFS, |
1405 | 99 | PCHContainerOps, StorePreamblesInMemory, PreambleStoragePath, |
1406 | 99 | Callbacks); |
1407 | | |
1408 | 99 | PreambleInvocationIn.getFrontendOpts().SkipFunctionBodies = |
1409 | 99 | PreviousSkipFunctionBodies; |
1410 | | |
1411 | 99 | if (NewPreamble) { |
1412 | 99 | Preamble = std::move(*NewPreamble); |
1413 | 99 | PreambleRebuildCountdown = 1; |
1414 | 99 | } else { |
1415 | 0 | switch (static_cast<BuildPreambleError>(NewPreamble.getError().value())) { |
1416 | 0 | case BuildPreambleError::CouldntCreateTempFile: |
1417 | | // Try again next time. |
1418 | 0 | PreambleRebuildCountdown = 1; |
1419 | 0 | return nullptr; |
1420 | 0 | case BuildPreambleError::CouldntCreateTargetInfo: |
1421 | 0 | case BuildPreambleError::BeginSourceFileFailed: |
1422 | 0 | case BuildPreambleError::CouldntEmitPCH: |
1423 | 0 | case BuildPreambleError::BadInputs: |
1424 | | // These erros are more likely to repeat, retry after some period. |
1425 | 0 | PreambleRebuildCountdown = DefaultPreambleRebuildInterval; |
1426 | 0 | return nullptr; |
1427 | 0 | } |
1428 | 0 | llvm_unreachable("unexpected BuildPreambleError"); |
1429 | 0 | } |
1430 | 99 | } |
1431 | | |
1432 | 99 | assert(Preamble && "Preamble wasn't built"); |
1433 | | |
1434 | 99 | TopLevelDecls.clear(); |
1435 | 99 | TopLevelDeclsInPreamble = Callbacks.takeTopLevelDeclIDs(); |
1436 | 99 | PreambleTopLevelHashValue = Callbacks.getHash(); |
1437 | | |
1438 | 99 | NumWarningsInPreamble = getDiagnostics().getNumWarnings(); |
1439 | | |
1440 | 99 | checkAndRemoveNonDriverDiags(NewPreambleDiags); |
1441 | 99 | StoredDiagnostics = std::move(NewPreambleDiags); |
1442 | 99 | PreambleDiagnostics = std::move(NewPreambleDiagsStandalone); |
1443 | | |
1444 | | // If the hash of top-level entities differs from the hash of the top-level |
1445 | | // entities the last time we rebuilt the preamble, clear out the completion |
1446 | | // cache. |
1447 | 99 | if (CurrentTopLevelHashValue != PreambleTopLevelHashValue) { |
1448 | 88 | CompletionCacheTopLevelHashValue = 0; |
1449 | 88 | PreambleTopLevelHashValue = CurrentTopLevelHashValue; |
1450 | 88 | } |
1451 | | |
1452 | 99 | return MainFileBuffer; |
1453 | 99 | } |
1454 | | |
1455 | 5 | void ASTUnit::RealizeTopLevelDeclsFromPreamble() { |
1456 | 5 | assert(Preamble && "Should only be called when preamble was built"); |
1457 | | |
1458 | 5 | std::vector<Decl *> Resolved; |
1459 | 5 | Resolved.reserve(TopLevelDeclsInPreamble.size()); |
1460 | 5 | ExternalASTSource &Source = *getASTContext().getExternalSource(); |
1461 | 9 | for (const auto TopLevelDecl : TopLevelDeclsInPreamble) { |
1462 | | // Resolve the declaration ID to an actual declaration, possibly |
1463 | | // deserializing the declaration in the process. |
1464 | 9 | if (Decl *D = Source.GetExternalDecl(TopLevelDecl)) |
1465 | 9 | Resolved.push_back(D); |
1466 | 9 | } |
1467 | 5 | TopLevelDeclsInPreamble.clear(); |
1468 | 5 | TopLevelDecls.insert(TopLevelDecls.begin(), Resolved.begin(), Resolved.end()); |
1469 | 5 | } |
1470 | | |
1471 | 10.2k | void ASTUnit::transferASTDataFromCompilerInstance(CompilerInstance &CI) { |
1472 | | // Steal the created target, context, and preprocessor if they have been |
1473 | | // created. |
1474 | 10.2k | assert(CI.hasInvocation() && "missing invocation"); |
1475 | 10.2k | LangOpts = CI.getInvocation().LangOpts; |
1476 | 10.2k | TheSema = CI.takeSema(); |
1477 | 10.2k | Consumer = CI.takeASTConsumer(); |
1478 | 10.2k | if (CI.hasASTContext()) |
1479 | 10.2k | Ctx = &CI.getASTContext(); |
1480 | 10.2k | if (CI.hasPreprocessor()) |
1481 | 10.2k | PP = CI.getPreprocessorPtr(); |
1482 | 10.2k | CI.setSourceManager(nullptr); |
1483 | 10.2k | CI.setFileManager(nullptr); |
1484 | 10.2k | if (CI.hasTarget()) |
1485 | 10.2k | Target = &CI.getTarget(); |
1486 | 10.2k | Reader = CI.getASTReader(); |
1487 | 10.2k | HadModuleLoaderFatalFailure = CI.hadModuleLoaderFatalFailure(); |
1488 | 10.2k | } |
1489 | | |
1490 | 10.5k | StringRef ASTUnit::getMainFileName() const { |
1491 | 10.5k | if (Invocation && !Invocation->getFrontendOpts().Inputs.empty()10.5k ) { |
1492 | 10.5k | const FrontendInputFile &Input = Invocation->getFrontendOpts().Inputs[0]; |
1493 | 10.5k | if (Input.isFile()) |
1494 | 10.5k | return Input.getFile(); |
1495 | 0 | else |
1496 | 0 | return Input.getBuffer().getBufferIdentifier(); |
1497 | 10.5k | } |
1498 | | |
1499 | 1 | if (SourceMgr) { |
1500 | 1 | if (OptionalFileEntryRef FE = |
1501 | 1 | SourceMgr->getFileEntryRefForID(SourceMgr->getMainFileID())) |
1502 | 1 | return FE->getName(); |
1503 | 1 | } |
1504 | | |
1505 | 0 | return {}; |
1506 | 1 | } |
1507 | | |
1508 | 0 | StringRef ASTUnit::getASTFileName() const { |
1509 | 0 | if (!isMainFileAST()) |
1510 | 0 | return {}; |
1511 | | |
1512 | 0 | serialization::ModuleFile & |
1513 | 0 | Mod = Reader->getModuleManager().getPrimaryModule(); |
1514 | 0 | return Mod.FileName; |
1515 | 0 | } |
1516 | | |
1517 | | std::unique_ptr<ASTUnit> |
1518 | | ASTUnit::create(std::shared_ptr<CompilerInvocation> CI, |
1519 | | IntrusiveRefCntPtr<DiagnosticsEngine> Diags, |
1520 | | CaptureDiagsKind CaptureDiagnostics, |
1521 | 197 | bool UserFilesAreVolatile) { |
1522 | 197 | std::unique_ptr<ASTUnit> AST(new ASTUnit(false)); |
1523 | 197 | ConfigureDiags(Diags, *AST, CaptureDiagnostics); |
1524 | 197 | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS = |
1525 | 197 | createVFSFromCompilerInvocation(*CI, *Diags); |
1526 | 197 | AST->Diagnostics = Diags; |
1527 | 197 | AST->FileSystemOpts = CI->getFileSystemOpts(); |
1528 | 197 | AST->Invocation = std::move(CI); |
1529 | 197 | AST->FileMgr = new FileManager(AST->FileSystemOpts, VFS); |
1530 | 197 | AST->UserFilesAreVolatile = UserFilesAreVolatile; |
1531 | 197 | AST->SourceMgr = new SourceManager(AST->getDiagnostics(), *AST->FileMgr, |
1532 | 197 | UserFilesAreVolatile); |
1533 | 197 | AST->ModuleCache = new InMemoryModuleCache; |
1534 | | |
1535 | 197 | return AST; |
1536 | 197 | } |
1537 | | |
1538 | | ASTUnit *ASTUnit::LoadFromCompilerInvocationAction( |
1539 | | std::shared_ptr<CompilerInvocation> CI, |
1540 | | std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1541 | | IntrusiveRefCntPtr<DiagnosticsEngine> Diags, FrontendAction *Action, |
1542 | | ASTUnit *Unit, bool Persistent, StringRef ResourceFilesPath, |
1543 | | bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics, |
1544 | | unsigned PrecompilePreambleAfterNParses, bool CacheCodeCompletionResults, |
1545 | 197 | bool UserFilesAreVolatile, std::unique_ptr<ASTUnit> *ErrAST) { |
1546 | 197 | assert(CI && "A CompilerInvocation is required"); |
1547 | | |
1548 | 197 | std::unique_ptr<ASTUnit> OwnAST; |
1549 | 197 | ASTUnit *AST = Unit; |
1550 | 197 | if (!AST) { |
1551 | | // Create the AST unit. |
1552 | 152 | OwnAST = create(CI, Diags, CaptureDiagnostics, UserFilesAreVolatile); |
1553 | 152 | AST = OwnAST.get(); |
1554 | 152 | if (!AST) |
1555 | 0 | return nullptr; |
1556 | 152 | } |
1557 | | |
1558 | 197 | if (!ResourceFilesPath.empty()) { |
1559 | | // Override the resources path. |
1560 | 45 | CI->getHeaderSearchOpts().ResourceDir = std::string(ResourceFilesPath); |
1561 | 45 | } |
1562 | 197 | AST->OnlyLocalDecls = OnlyLocalDecls; |
1563 | 197 | AST->CaptureDiagnostics = CaptureDiagnostics; |
1564 | 197 | if (PrecompilePreambleAfterNParses > 0) |
1565 | 0 | AST->PreambleRebuildCountdown = PrecompilePreambleAfterNParses; |
1566 | 197 | AST->TUKind = Action ? Action->getTranslationUnitKind()143 : TU_Complete54 ; |
1567 | 197 | AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults; |
1568 | 197 | AST->IncludeBriefCommentsInCodeCompletion = false; |
1569 | | |
1570 | | // Recover resources if we crash before exiting this method. |
1571 | 197 | llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> |
1572 | 197 | ASTUnitCleanup(OwnAST.get()); |
1573 | 197 | llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine, |
1574 | 197 | llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine>> |
1575 | 197 | DiagCleanup(Diags.get()); |
1576 | | |
1577 | | // We'll manage file buffers ourselves. |
1578 | 197 | CI->getPreprocessorOpts().RetainRemappedFileBuffers = true; |
1579 | 197 | CI->getFrontendOpts().DisableFree = false; |
1580 | 197 | ProcessWarningOptions(AST->getDiagnostics(), CI->getDiagnosticOpts()); |
1581 | | |
1582 | | // Create the compiler instance to use for building the AST. |
1583 | 197 | std::unique_ptr<CompilerInstance> Clang( |
1584 | 197 | new CompilerInstance(std::move(PCHContainerOps))); |
1585 | | |
1586 | | // Recover resources if we crash before exiting this method. |
1587 | 197 | llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> |
1588 | 197 | CICleanup(Clang.get()); |
1589 | | |
1590 | 197 | Clang->setInvocation(std::move(CI)); |
1591 | 197 | AST->OriginalSourceFile = |
1592 | 197 | std::string(Clang->getFrontendOpts().Inputs[0].getFile()); |
1593 | | |
1594 | | // Set up diagnostics, capturing any diagnostics that would |
1595 | | // otherwise be dropped. |
1596 | 197 | Clang->setDiagnostics(&AST->getDiagnostics()); |
1597 | | |
1598 | | // Create the target instance. |
1599 | 197 | if (!Clang->createTarget()) |
1600 | 0 | return nullptr; |
1601 | | |
1602 | 197 | assert(Clang->getFrontendOpts().Inputs.size() == 1 && |
1603 | 197 | "Invocation must have exactly one source file!"); |
1604 | 197 | assert(Clang->getFrontendOpts().Inputs[0].getKind().getFormat() == |
1605 | 197 | InputKind::Source && |
1606 | 197 | "FIXME: AST inputs not yet supported here!"); |
1607 | 197 | assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() != |
1608 | 197 | Language::LLVM_IR && |
1609 | 197 | "IR inputs not support here!"); |
1610 | | |
1611 | | // Configure the various subsystems. |
1612 | 197 | AST->TheSema.reset(); |
1613 | 197 | AST->Ctx = nullptr; |
1614 | 197 | AST->PP = nullptr; |
1615 | 197 | AST->Reader = nullptr; |
1616 | | |
1617 | | // Create a file manager object to provide access to and cache the filesystem. |
1618 | 197 | Clang->setFileManager(&AST->getFileManager()); |
1619 | | |
1620 | | // Create the source manager. |
1621 | 197 | Clang->setSourceManager(&AST->getSourceManager()); |
1622 | | |
1623 | 197 | FrontendAction *Act = Action; |
1624 | | |
1625 | 197 | std::unique_ptr<TopLevelDeclTrackerAction> TrackerAct; |
1626 | 197 | if (!Act) { |
1627 | 54 | TrackerAct.reset(new TopLevelDeclTrackerAction(*AST)); |
1628 | 54 | Act = TrackerAct.get(); |
1629 | 54 | } |
1630 | | |
1631 | | // Recover resources if we crash before exiting this method. |
1632 | 197 | llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction> |
1633 | 197 | ActCleanup(TrackerAct.get()); |
1634 | | |
1635 | 197 | if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) { |
1636 | 0 | AST->transferASTDataFromCompilerInstance(*Clang); |
1637 | 0 | if (OwnAST && ErrAST) |
1638 | 0 | ErrAST->swap(OwnAST); |
1639 | |
|
1640 | 0 | return nullptr; |
1641 | 0 | } |
1642 | | |
1643 | 197 | if (Persistent && !TrackerAct152 ) { |
1644 | 98 | Clang->getPreprocessor().addPPCallbacks( |
1645 | 98 | std::make_unique<MacroDefinitionTrackerPPCallbacks>( |
1646 | 98 | AST->getCurrentTopLevelHashValue())); |
1647 | 98 | std::vector<std::unique_ptr<ASTConsumer>> Consumers; |
1648 | 98 | if (Clang->hasASTConsumer()) |
1649 | 98 | Consumers.push_back(Clang->takeASTConsumer()); |
1650 | 98 | Consumers.push_back(std::make_unique<TopLevelDeclTrackerConsumer>( |
1651 | 98 | *AST, AST->getCurrentTopLevelHashValue())); |
1652 | 98 | Clang->setASTConsumer( |
1653 | 98 | std::make_unique<MultiplexConsumer>(std::move(Consumers))); |
1654 | 98 | } |
1655 | 197 | if (llvm::Error Err = Act->Execute()) { |
1656 | 0 | consumeError(std::move(Err)); // FIXME this drops errors on the floor. |
1657 | 0 | AST->transferASTDataFromCompilerInstance(*Clang); |
1658 | 0 | if (OwnAST && ErrAST) |
1659 | 0 | ErrAST->swap(OwnAST); |
1660 | |
|
1661 | 0 | return nullptr; |
1662 | 0 | } |
1663 | | |
1664 | | // Steal the created target, context, and preprocessor. |
1665 | 197 | AST->transferASTDataFromCompilerInstance(*Clang); |
1666 | | |
1667 | 197 | Act->EndSourceFile(); |
1668 | | |
1669 | 197 | if (OwnAST) |
1670 | 152 | return OwnAST.release(); |
1671 | 45 | else |
1672 | 45 | return AST; |
1673 | 197 | } |
1674 | | |
1675 | | bool ASTUnit::LoadFromCompilerInvocation( |
1676 | | std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1677 | | unsigned PrecompilePreambleAfterNParses, |
1678 | 9.24k | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) { |
1679 | 9.24k | if (!Invocation) |
1680 | 0 | return true; |
1681 | | |
1682 | 9.24k | assert(VFS && "VFS is null"); |
1683 | | |
1684 | | // We'll manage file buffers ourselves. |
1685 | 9.24k | Invocation->getPreprocessorOpts().RetainRemappedFileBuffers = true; |
1686 | 9.24k | Invocation->getFrontendOpts().DisableFree = false; |
1687 | 9.24k | getDiagnostics().Reset(); |
1688 | 9.24k | ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts()); |
1689 | | |
1690 | 9.24k | std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer; |
1691 | 9.24k | if (PrecompilePreambleAfterNParses > 0) { |
1692 | 149 | PreambleRebuildCountdown = PrecompilePreambleAfterNParses; |
1693 | 149 | OverrideMainBuffer = |
1694 | 149 | getMainBufferWithPrecompiledPreamble(PCHContainerOps, *Invocation, VFS); |
1695 | 149 | getDiagnostics().Reset(); |
1696 | 149 | ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts()); |
1697 | 149 | } |
1698 | | |
1699 | 9.24k | SimpleTimer ParsingTimer(WantTiming); |
1700 | 9.24k | ParsingTimer.setOutput("Parsing " + getMainFileName()); |
1701 | | |
1702 | | // Recover resources if we crash before exiting this method. |
1703 | 9.24k | llvm::CrashRecoveryContextCleanupRegistrar<llvm::MemoryBuffer> |
1704 | 9.24k | MemBufferCleanup(OverrideMainBuffer.get()); |
1705 | | |
1706 | 9.24k | return Parse(std::move(PCHContainerOps), std::move(OverrideMainBuffer), VFS); |
1707 | 9.24k | } |
1708 | | |
1709 | | std::unique_ptr<ASTUnit> ASTUnit::LoadFromCompilerInvocation( |
1710 | | std::shared_ptr<CompilerInvocation> CI, |
1711 | | std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1712 | | IntrusiveRefCntPtr<DiagnosticsEngine> Diags, FileManager *FileMgr, |
1713 | | bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics, |
1714 | | unsigned PrecompilePreambleAfterNParses, TranslationUnitKind TUKind, |
1715 | | bool CacheCodeCompletionResults, bool IncludeBriefCommentsInCodeCompletion, |
1716 | 8.21k | bool UserFilesAreVolatile) { |
1717 | | // Create the AST unit. |
1718 | 8.21k | std::unique_ptr<ASTUnit> AST(new ASTUnit(false)); |
1719 | 8.21k | ConfigureDiags(Diags, *AST, CaptureDiagnostics); |
1720 | 8.21k | AST->Diagnostics = Diags; |
1721 | 8.21k | AST->OnlyLocalDecls = OnlyLocalDecls; |
1722 | 8.21k | AST->CaptureDiagnostics = CaptureDiagnostics; |
1723 | 8.21k | AST->TUKind = TUKind; |
1724 | 8.21k | AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults; |
1725 | 8.21k | AST->IncludeBriefCommentsInCodeCompletion |
1726 | 8.21k | = IncludeBriefCommentsInCodeCompletion; |
1727 | 8.21k | AST->Invocation = std::move(CI); |
1728 | 8.21k | AST->FileSystemOpts = FileMgr->getFileSystemOpts(); |
1729 | 8.21k | AST->FileMgr = FileMgr; |
1730 | 8.21k | AST->UserFilesAreVolatile = UserFilesAreVolatile; |
1731 | | |
1732 | | // Recover resources if we crash before exiting this method. |
1733 | 8.21k | llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> |
1734 | 8.21k | ASTUnitCleanup(AST.get()); |
1735 | 8.21k | llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine, |
1736 | 8.21k | llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine>> |
1737 | 8.21k | DiagCleanup(Diags.get()); |
1738 | | |
1739 | 8.21k | if (AST->LoadFromCompilerInvocation(std::move(PCHContainerOps), |
1740 | 8.21k | PrecompilePreambleAfterNParses, |
1741 | 8.21k | &AST->FileMgr->getVirtualFileSystem())) |
1742 | 0 | return nullptr; |
1743 | 8.21k | return AST; |
1744 | 8.21k | } |
1745 | | |
1746 | | std::unique_ptr<ASTUnit> ASTUnit::LoadFromCommandLine( |
1747 | | const char **ArgBegin, const char **ArgEnd, |
1748 | | std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1749 | | IntrusiveRefCntPtr<DiagnosticsEngine> Diags, StringRef ResourceFilesPath, |
1750 | | bool StorePreamblesInMemory, StringRef PreambleStoragePath, |
1751 | | bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics, |
1752 | | ArrayRef<RemappedFile> RemappedFiles, bool RemappedFilesKeepOriginalName, |
1753 | | unsigned PrecompilePreambleAfterNParses, TranslationUnitKind TUKind, |
1754 | | bool CacheCodeCompletionResults, bool IncludeBriefCommentsInCodeCompletion, |
1755 | | bool AllowPCHWithCompilerErrors, SkipFunctionBodiesScope SkipFunctionBodies, |
1756 | | bool SingleFileParse, bool UserFilesAreVolatile, bool ForSerialization, |
1757 | | bool RetainExcludedConditionalBlocks, std::optional<StringRef> ModuleFormat, |
1758 | | std::unique_ptr<ASTUnit> *ErrAST, |
1759 | 1.03k | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) { |
1760 | 1.03k | assert(Diags.get() && "no DiagnosticsEngine was provided"); |
1761 | | |
1762 | | // If no VFS was provided, create one that tracks the physical file system. |
1763 | | // If '-working-directory' was passed as an argument, 'createInvocation' will |
1764 | | // set this as the current working directory of the VFS. |
1765 | 1.03k | if (!VFS) |
1766 | 1.03k | VFS = llvm::vfs::createPhysicalFileSystem(); |
1767 | | |
1768 | 1.03k | SmallVector<StoredDiagnostic, 4> StoredDiagnostics; |
1769 | | |
1770 | 1.03k | std::shared_ptr<CompilerInvocation> CI; |
1771 | | |
1772 | 1.03k | { |
1773 | 1.03k | CaptureDroppedDiagnostics Capture(CaptureDiagnostics, *Diags, |
1774 | 1.03k | &StoredDiagnostics, nullptr); |
1775 | | |
1776 | 1.03k | CreateInvocationOptions CIOpts; |
1777 | 1.03k | CIOpts.VFS = VFS; |
1778 | 1.03k | CIOpts.Diags = Diags; |
1779 | 1.03k | CIOpts.ProbePrecompiled = true; // FIXME: historical default. Needed? |
1780 | 1.03k | CI = createInvocation(llvm::ArrayRef(ArgBegin, ArgEnd), std::move(CIOpts)); |
1781 | 1.03k | if (!CI) |
1782 | 0 | return nullptr; |
1783 | 1.03k | } |
1784 | | |
1785 | | // Override any files that need remapping |
1786 | 1.03k | for (const auto &RemappedFile : RemappedFiles) { |
1787 | 4 | CI->getPreprocessorOpts().addRemappedFile(RemappedFile.first, |
1788 | 4 | RemappedFile.second); |
1789 | 4 | } |
1790 | 1.03k | PreprocessorOptions &PPOpts = CI->getPreprocessorOpts(); |
1791 | 1.03k | PPOpts.RemappedFilesKeepOriginalName = RemappedFilesKeepOriginalName; |
1792 | 1.03k | PPOpts.AllowPCHWithCompilerErrors = AllowPCHWithCompilerErrors; |
1793 | 1.03k | PPOpts.SingleFileParseMode = SingleFileParse; |
1794 | 1.03k | PPOpts.RetainExcludedConditionalBlocks = RetainExcludedConditionalBlocks; |
1795 | | |
1796 | | // Override the resources path. |
1797 | 1.03k | CI->getHeaderSearchOpts().ResourceDir = std::string(ResourceFilesPath); |
1798 | | |
1799 | 1.03k | CI->getFrontendOpts().SkipFunctionBodies = |
1800 | 1.03k | SkipFunctionBodies == SkipFunctionBodiesScope::PreambleAndMainFile; |
1801 | | |
1802 | 1.03k | if (ModuleFormat) |
1803 | 1.03k | CI->getHeaderSearchOpts().ModuleFormat = std::string(*ModuleFormat); |
1804 | | |
1805 | | // Create the AST unit. |
1806 | 1.03k | std::unique_ptr<ASTUnit> AST; |
1807 | 1.03k | AST.reset(new ASTUnit(false)); |
1808 | 1.03k | AST->NumStoredDiagnosticsFromDriver = StoredDiagnostics.size(); |
1809 | 1.03k | AST->StoredDiagnostics.swap(StoredDiagnostics); |
1810 | 1.03k | ConfigureDiags(Diags, *AST, CaptureDiagnostics); |
1811 | 1.03k | AST->Diagnostics = Diags; |
1812 | 1.03k | AST->FileSystemOpts = CI->getFileSystemOpts(); |
1813 | 1.03k | VFS = createVFSFromCompilerInvocation(*CI, *Diags, VFS); |
1814 | 1.03k | AST->FileMgr = new FileManager(AST->FileSystemOpts, VFS); |
1815 | 1.03k | AST->StorePreamblesInMemory = StorePreamblesInMemory; |
1816 | 1.03k | AST->PreambleStoragePath = PreambleStoragePath; |
1817 | 1.03k | AST->ModuleCache = new InMemoryModuleCache; |
1818 | 1.03k | AST->OnlyLocalDecls = OnlyLocalDecls; |
1819 | 1.03k | AST->CaptureDiagnostics = CaptureDiagnostics; |
1820 | 1.03k | AST->TUKind = TUKind; |
1821 | 1.03k | AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults; |
1822 | 1.03k | AST->IncludeBriefCommentsInCodeCompletion |
1823 | 1.03k | = IncludeBriefCommentsInCodeCompletion; |
1824 | 1.03k | AST->UserFilesAreVolatile = UserFilesAreVolatile; |
1825 | 1.03k | AST->Invocation = CI; |
1826 | 1.03k | AST->SkipFunctionBodies = SkipFunctionBodies; |
1827 | 1.03k | if (ForSerialization) |
1828 | 60 | AST->WriterData.reset(new ASTWriterData(*AST->ModuleCache)); |
1829 | | // Zero out now to ease cleanup during crash recovery. |
1830 | 1.03k | CI = nullptr; |
1831 | 1.03k | Diags = nullptr; |
1832 | | |
1833 | | // Recover resources if we crash before exiting this method. |
1834 | 1.03k | llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> |
1835 | 1.03k | ASTUnitCleanup(AST.get()); |
1836 | | |
1837 | 1.03k | if (AST->LoadFromCompilerInvocation(std::move(PCHContainerOps), |
1838 | 1.03k | PrecompilePreambleAfterNParses, |
1839 | 1.03k | VFS)) { |
1840 | | // Some error occurred, if caller wants to examine diagnostics, pass it the |
1841 | | // ASTUnit. |
1842 | 3 | if (ErrAST) { |
1843 | 3 | AST->StoredDiagnostics.swap(AST->FailedParseDiagnostics); |
1844 | 3 | ErrAST->swap(AST); |
1845 | 3 | } |
1846 | 3 | return nullptr; |
1847 | 3 | } |
1848 | | |
1849 | 1.03k | return AST; |
1850 | 1.03k | } |
1851 | | |
1852 | | bool ASTUnit::Reparse(std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
1853 | | ArrayRef<RemappedFile> RemappedFiles, |
1854 | 827 | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) { |
1855 | 827 | if (!Invocation) |
1856 | 0 | return true; |
1857 | | |
1858 | 827 | if (!VFS) { |
1859 | 819 | assert(FileMgr && "FileMgr is null on Reparse call"); |
1860 | 819 | VFS = &FileMgr->getVirtualFileSystem(); |
1861 | 819 | } |
1862 | | |
1863 | 827 | clearFileLevelDecls(); |
1864 | | |
1865 | 827 | SimpleTimer ParsingTimer(WantTiming); |
1866 | 827 | ParsingTimer.setOutput("Reparsing " + getMainFileName()); |
1867 | | |
1868 | | // Remap files. |
1869 | 827 | PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts(); |
1870 | 827 | for (const auto &RB : PPOpts.RemappedFileBuffers) |
1871 | 12 | delete RB.second; |
1872 | | |
1873 | 827 | Invocation->getPreprocessorOpts().clearRemappedFiles(); |
1874 | 827 | for (const auto &RemappedFile : RemappedFiles) { |
1875 | 18 | Invocation->getPreprocessorOpts().addRemappedFile(RemappedFile.first, |
1876 | 18 | RemappedFile.second); |
1877 | 18 | } |
1878 | | |
1879 | | // If we have a preamble file lying around, or if we might try to |
1880 | | // build a precompiled preamble, do so now. |
1881 | 827 | std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer; |
1882 | 827 | if (Preamble || PreambleRebuildCountdown > 0648 ) |
1883 | 304 | OverrideMainBuffer = |
1884 | 304 | getMainBufferWithPrecompiledPreamble(PCHContainerOps, *Invocation, VFS); |
1885 | | |
1886 | | // Clear out the diagnostics state. |
1887 | 827 | FileMgr.reset(); |
1888 | 827 | getDiagnostics().Reset(); |
1889 | 827 | ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts()); |
1890 | 827 | if (OverrideMainBuffer) |
1891 | 255 | getDiagnostics().setNumWarnings(NumWarningsInPreamble); |
1892 | | |
1893 | | // Parse the sources |
1894 | 827 | bool Result = |
1895 | 827 | Parse(std::move(PCHContainerOps), std::move(OverrideMainBuffer), VFS); |
1896 | | |
1897 | | // If we're caching global code-completion results, and the top-level |
1898 | | // declarations have changed, clear out the code-completion cache. |
1899 | 827 | if (!Result && ShouldCacheCodeCompletionResults826 && |
1900 | 827 | CurrentTopLevelHashValue != CompletionCacheTopLevelHashValue238 ) |
1901 | 104 | CacheCodeCompletionResults(); |
1902 | | |
1903 | | // We now need to clear out the completion info related to this translation |
1904 | | // unit; it'll be recreated if necessary. |
1905 | 827 | CCTUInfo.reset(); |
1906 | | |
1907 | 827 | return Result; |
1908 | 827 | } |
1909 | | |
1910 | 10.1k | void ASTUnit::ResetForParse() { |
1911 | 10.1k | SavedMainFileBuffer.reset(); |
1912 | | |
1913 | 10.1k | SourceMgr.reset(); |
1914 | 10.1k | TheSema.reset(); |
1915 | 10.1k | Ctx.reset(); |
1916 | 10.1k | PP.reset(); |
1917 | 10.1k | Reader.reset(); |
1918 | | |
1919 | 10.1k | TopLevelDecls.clear(); |
1920 | 10.1k | clearFileLevelDecls(); |
1921 | 10.1k | } |
1922 | | |
1923 | | //----------------------------------------------------------------------------// |
1924 | | // Code completion |
1925 | | //----------------------------------------------------------------------------// |
1926 | | |
1927 | | namespace { |
1928 | | |
1929 | | /// Code completion consumer that combines the cached code-completion |
1930 | | /// results from an ASTUnit with the code-completion results provided to it, |
1931 | | /// then passes the result on to |
1932 | | class AugmentedCodeCompleteConsumer : public CodeCompleteConsumer { |
1933 | | uint64_t NormalContexts; |
1934 | | ASTUnit &AST; |
1935 | | CodeCompleteConsumer &Next; |
1936 | | |
1937 | | public: |
1938 | | AugmentedCodeCompleteConsumer(ASTUnit &AST, CodeCompleteConsumer &Next, |
1939 | | const CodeCompleteOptions &CodeCompleteOpts) |
1940 | 725 | : CodeCompleteConsumer(CodeCompleteOpts), AST(AST), Next(Next) { |
1941 | | // Compute the set of contexts in which we will look when we don't have |
1942 | | // any information about the specific context. |
1943 | 725 | NormalContexts |
1944 | 725 | = (1LL << CodeCompletionContext::CCC_TopLevel) |
1945 | 725 | | (1LL << CodeCompletionContext::CCC_ObjCInterface) |
1946 | 725 | | (1LL << CodeCompletionContext::CCC_ObjCImplementation) |
1947 | 725 | | (1LL << CodeCompletionContext::CCC_ObjCIvarList) |
1948 | 725 | | (1LL << CodeCompletionContext::CCC_Statement) |
1949 | 725 | | (1LL << CodeCompletionContext::CCC_Expression) |
1950 | 725 | | (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver) |
1951 | 725 | | (1LL << CodeCompletionContext::CCC_DotMemberAccess) |
1952 | 725 | | (1LL << CodeCompletionContext::CCC_ArrowMemberAccess) |
1953 | 725 | | (1LL << CodeCompletionContext::CCC_ObjCPropertyAccess) |
1954 | 725 | | (1LL << CodeCompletionContext::CCC_ObjCProtocolName) |
1955 | 725 | | (1LL << CodeCompletionContext::CCC_ParenthesizedExpression) |
1956 | 725 | | (1LL << CodeCompletionContext::CCC_Recovery); |
1957 | | |
1958 | 725 | if (AST.getASTContext().getLangOpts().CPlusPlus) |
1959 | 261 | NormalContexts |= (1LL << CodeCompletionContext::CCC_EnumTag) |
1960 | 261 | | (1LL << CodeCompletionContext::CCC_UnionTag) |
1961 | 261 | | (1LL << CodeCompletionContext::CCC_ClassOrStructTag); |
1962 | 725 | } |
1963 | | |
1964 | | void ProcessCodeCompleteResults(Sema &S, CodeCompletionContext Context, |
1965 | | CodeCompletionResult *Results, |
1966 | | unsigned NumResults) override; |
1967 | | |
1968 | | void ProcessOverloadCandidates(Sema &S, unsigned CurrentArg, |
1969 | | OverloadCandidate *Candidates, |
1970 | | unsigned NumCandidates, |
1971 | | SourceLocation OpenParLoc, |
1972 | 101 | bool Braced) override { |
1973 | 101 | Next.ProcessOverloadCandidates(S, CurrentArg, Candidates, NumCandidates, |
1974 | 101 | OpenParLoc, Braced); |
1975 | 101 | } |
1976 | | |
1977 | 2.86k | CodeCompletionAllocator &getAllocator() override { |
1978 | 2.86k | return Next.getAllocator(); |
1979 | 2.86k | } |
1980 | | |
1981 | 2.86k | CodeCompletionTUInfo &getCodeCompletionTUInfo() override { |
1982 | 2.86k | return Next.getCodeCompletionTUInfo(); |
1983 | 2.86k | } |
1984 | | }; |
1985 | | |
1986 | | } // namespace |
1987 | | |
1988 | | /// Helper function that computes which global names are hidden by the |
1989 | | /// local code-completion results. |
1990 | | static void CalculateHiddenNames(const CodeCompletionContext &Context, |
1991 | | CodeCompletionResult *Results, |
1992 | | unsigned NumResults, |
1993 | | ASTContext &Ctx, |
1994 | 156 | llvm::StringSet<llvm::BumpPtrAllocator> &HiddenNames){ |
1995 | 156 | bool OnlyTagNames = false; |
1996 | 156 | switch (Context.getKind()) { |
1997 | 0 | case CodeCompletionContext::CCC_Recovery: |
1998 | 25 | case CodeCompletionContext::CCC_TopLevel: |
1999 | 25 | case CodeCompletionContext::CCC_ObjCInterface: |
2000 | 25 | case CodeCompletionContext::CCC_ObjCImplementation: |
2001 | 25 | case CodeCompletionContext::CCC_ObjCIvarList: |
2002 | 25 | case CodeCompletionContext::CCC_ClassStructUnion: |
2003 | 66 | case CodeCompletionContext::CCC_Statement: |
2004 | 111 | case CodeCompletionContext::CCC_Expression: |
2005 | 111 | case CodeCompletionContext::CCC_ObjCMessageReceiver: |
2006 | 111 | case CodeCompletionContext::CCC_DotMemberAccess: |
2007 | 111 | case CodeCompletionContext::CCC_ArrowMemberAccess: |
2008 | 111 | case CodeCompletionContext::CCC_ObjCPropertyAccess: |
2009 | 111 | case CodeCompletionContext::CCC_Namespace: |
2010 | 111 | case CodeCompletionContext::CCC_Type: |
2011 | 111 | case CodeCompletionContext::CCC_Symbol: |
2012 | 121 | case CodeCompletionContext::CCC_SymbolOrNewName: |
2013 | 131 | case CodeCompletionContext::CCC_ParenthesizedExpression: |
2014 | 136 | case CodeCompletionContext::CCC_ObjCInterfaceName: |
2015 | 136 | case CodeCompletionContext::CCC_TopLevelOrExpression: |
2016 | 136 | break; |
2017 | | |
2018 | 0 | case CodeCompletionContext::CCC_EnumTag: |
2019 | 0 | case CodeCompletionContext::CCC_UnionTag: |
2020 | 5 | case CodeCompletionContext::CCC_ClassOrStructTag: |
2021 | 5 | OnlyTagNames = true; |
2022 | 5 | break; |
2023 | | |
2024 | 5 | case CodeCompletionContext::CCC_ObjCProtocolName: |
2025 | 5 | case CodeCompletionContext::CCC_MacroName: |
2026 | 10 | case CodeCompletionContext::CCC_MacroNameUse: |
2027 | 15 | case CodeCompletionContext::CCC_PreprocessorExpression: |
2028 | 15 | case CodeCompletionContext::CCC_PreprocessorDirective: |
2029 | 15 | case CodeCompletionContext::CCC_NaturalLanguage: |
2030 | 15 | case CodeCompletionContext::CCC_SelectorName: |
2031 | 15 | case CodeCompletionContext::CCC_TypeQualifiers: |
2032 | 15 | case CodeCompletionContext::CCC_Other: |
2033 | 15 | case CodeCompletionContext::CCC_OtherWithMacros: |
2034 | 15 | case CodeCompletionContext::CCC_ObjCInstanceMessage: |
2035 | 15 | case CodeCompletionContext::CCC_ObjCClassMessage: |
2036 | 15 | case CodeCompletionContext::CCC_ObjCCategoryName: |
2037 | 15 | case CodeCompletionContext::CCC_IncludedFile: |
2038 | 15 | case CodeCompletionContext::CCC_Attribute: |
2039 | 15 | case CodeCompletionContext::CCC_NewName: |
2040 | 15 | case CodeCompletionContext::CCC_ObjCClassForwardDecl: |
2041 | | // We're looking for nothing, or we're looking for names that cannot |
2042 | | // be hidden. |
2043 | 15 | return; |
2044 | 156 | } |
2045 | | |
2046 | 141 | using Result = CodeCompletionResult; |
2047 | 3.70k | for (unsigned I = 0; I != NumResults; ++I3.55k ) { |
2048 | 3.55k | if (Results[I].Kind != Result::RK_Declaration) |
2049 | 3.40k | continue; |
2050 | | |
2051 | 155 | unsigned IDNS |
2052 | 155 | = Results[I].Declaration->getUnderlyingDecl()->getIdentifierNamespace(); |
2053 | | |
2054 | 155 | bool Hiding = false; |
2055 | 155 | if (OnlyTagNames) |
2056 | 5 | Hiding = (IDNS & Decl::IDNS_Tag); |
2057 | 150 | else { |
2058 | 150 | unsigned HiddenIDNS = (Decl::IDNS_Type | Decl::IDNS_Member | |
2059 | 150 | Decl::IDNS_Namespace | Decl::IDNS_Ordinary | |
2060 | 150 | Decl::IDNS_NonMemberOperator); |
2061 | 150 | if (Ctx.getLangOpts().CPlusPlus) |
2062 | 5 | HiddenIDNS |= Decl::IDNS_Tag; |
2063 | 150 | Hiding = (IDNS & HiddenIDNS); |
2064 | 150 | } |
2065 | | |
2066 | 155 | if (!Hiding) |
2067 | 10 | continue; |
2068 | | |
2069 | 145 | DeclarationName Name = Results[I].Declaration->getDeclName(); |
2070 | 145 | if (IdentifierInfo *Identifier = Name.getAsIdentifierInfo()) |
2071 | 145 | HiddenNames.insert(Identifier->getName()); |
2072 | 0 | else |
2073 | 0 | HiddenNames.insert(Name.getAsString()); |
2074 | 145 | } |
2075 | 141 | } |
2076 | | |
2077 | | void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S, |
2078 | | CodeCompletionContext Context, |
2079 | | CodeCompletionResult *Results, |
2080 | 720 | unsigned NumResults) { |
2081 | | // Merge the results we were given with the results we cached. |
2082 | 720 | bool AddedResult = false; |
2083 | 720 | uint64_t InContexts = |
2084 | 720 | Context.getKind() == CodeCompletionContext::CCC_Recovery |
2085 | 720 | ? NormalContexts1 : (1LL << Context.getKind())719 ; |
2086 | | // Contains the set of names that are hidden by "local" completion results. |
2087 | 720 | llvm::StringSet<llvm::BumpPtrAllocator> HiddenNames; |
2088 | 720 | using Result = CodeCompletionResult; |
2089 | 720 | SmallVector<Result, 8> AllResults; |
2090 | 720 | for (ASTUnit::cached_completion_iterator |
2091 | 720 | C = AST.cached_completion_begin(), |
2092 | 720 | CEnd = AST.cached_completion_end(); |
2093 | 104k | C != CEnd; ++C104k ) { |
2094 | | // If the context we are in matches any of the contexts we are |
2095 | | // interested in, we'll add this result. |
2096 | 104k | if ((C->ShowInContexts & InContexts) == 0) |
2097 | 45.8k | continue; |
2098 | | |
2099 | | // If we haven't added any results previously, do so now. |
2100 | 58.3k | if (!AddedResult) { |
2101 | 156 | CalculateHiddenNames(Context, Results, NumResults, S.Context, |
2102 | 156 | HiddenNames); |
2103 | 156 | AllResults.insert(AllResults.end(), Results, Results + NumResults); |
2104 | 156 | AddedResult = true; |
2105 | 156 | } |
2106 | | |
2107 | | // Determine whether this global completion result is hidden by a local |
2108 | | // completion result. If so, skip it. |
2109 | 58.3k | if (C->Kind != CXCursor_MacroDefinition && |
2110 | 58.3k | HiddenNames.count(C->Completion->getTypedText())743 ) |
2111 | 20 | continue; |
2112 | | |
2113 | | // Adjust priority based on similar type classes. |
2114 | 58.3k | unsigned Priority = C->Priority; |
2115 | 58.3k | CodeCompletionString *Completion = C->Completion; |
2116 | 58.3k | if (!Context.getPreferredType().isNull()) { |
2117 | 15.2k | if (C->Kind == CXCursor_MacroDefinition) { |
2118 | 15.0k | Priority = getMacroUsagePriority(C->Completion->getTypedText(), |
2119 | 15.0k | S.getLangOpts(), |
2120 | 15.0k | Context.getPreferredType()->isAnyPointerType()); |
2121 | 15.0k | } else if (200 C->Type200 ) { |
2122 | 200 | CanQualType Expected |
2123 | 200 | = S.Context.getCanonicalType( |
2124 | 200 | Context.getPreferredType().getUnqualifiedType()); |
2125 | 200 | SimplifiedTypeClass ExpectedSTC = getSimplifiedTypeClass(Expected); |
2126 | 200 | if (ExpectedSTC == C->TypeClass) { |
2127 | | // We know this type is similar; check for an exact match. |
2128 | 60 | llvm::StringMap<unsigned> &CachedCompletionTypes |
2129 | 60 | = AST.getCachedCompletionTypes(); |
2130 | 60 | llvm::StringMap<unsigned>::iterator Pos |
2131 | 60 | = CachedCompletionTypes.find(QualType(Expected).getAsString()); |
2132 | 60 | if (Pos != CachedCompletionTypes.end() && Pos->second == C->Type) |
2133 | 60 | Priority /= CCF_ExactTypeMatch; |
2134 | 0 | else |
2135 | 0 | Priority /= CCF_SimilarTypeMatch; |
2136 | 60 | } |
2137 | 200 | } |
2138 | 15.2k | } |
2139 | | |
2140 | | // Adjust the completion string, if required. |
2141 | 58.3k | if (C->Kind == CXCursor_MacroDefinition && |
2142 | 58.3k | Context.getKind() == CodeCompletionContext::CCC_MacroNameUse57.6k ) { |
2143 | | // Create a new code-completion string that just contains the |
2144 | | // macro name, without its arguments. |
2145 | 2.18k | CodeCompletionBuilder Builder(getAllocator(), getCodeCompletionTUInfo(), |
2146 | 2.18k | CCP_CodePattern, C->Availability); |
2147 | 2.18k | Builder.AddTypedTextChunk(C->Completion->getTypedText()); |
2148 | 2.18k | Priority = CCP_CodePattern; |
2149 | 2.18k | Completion = Builder.TakeString(); |
2150 | 2.18k | } |
2151 | | |
2152 | 58.3k | AllResults.push_back(Result(Completion, Priority, C->Kind, |
2153 | 58.3k | C->Availability)); |
2154 | 58.3k | } |
2155 | | |
2156 | | // If we did not add any cached completion results, just forward the |
2157 | | // results we were given to the next consumer. |
2158 | 720 | if (!AddedResult) { |
2159 | 564 | Next.ProcessCodeCompleteResults(S, Context, Results, NumResults); |
2160 | 564 | return; |
2161 | 564 | } |
2162 | | |
2163 | 156 | Next.ProcessCodeCompleteResults(S, Context, AllResults.data(), |
2164 | 156 | AllResults.size()); |
2165 | 156 | } |
2166 | | |
2167 | | void ASTUnit::CodeComplete( |
2168 | | StringRef File, unsigned Line, unsigned Column, |
2169 | | ArrayRef<RemappedFile> RemappedFiles, bool IncludeMacros, |
2170 | | bool IncludeCodePatterns, bool IncludeBriefComments, |
2171 | | CodeCompleteConsumer &Consumer, |
2172 | | std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
2173 | | DiagnosticsEngine &Diag, LangOptions &LangOpts, SourceManager &SourceMgr, |
2174 | | FileManager &FileMgr, SmallVectorImpl<StoredDiagnostic> &StoredDiagnostics, |
2175 | | SmallVectorImpl<const llvm::MemoryBuffer *> &OwnedBuffers, |
2176 | 725 | std::unique_ptr<SyntaxOnlyAction> Act) { |
2177 | 725 | if (!Invocation) |
2178 | 0 | return; |
2179 | | |
2180 | 725 | SimpleTimer CompletionTimer(WantTiming); |
2181 | 725 | CompletionTimer.setOutput("Code completion @ " + File + ":" + |
2182 | 725 | Twine(Line) + ":" + Twine(Column)); |
2183 | | |
2184 | 725 | auto CCInvocation = std::make_shared<CompilerInvocation>(*Invocation); |
2185 | | |
2186 | 725 | FrontendOptions &FrontendOpts = CCInvocation->getFrontendOpts(); |
2187 | 725 | CodeCompleteOptions &CodeCompleteOpts = FrontendOpts.CodeCompleteOpts; |
2188 | 725 | PreprocessorOptions &PreprocessorOpts = CCInvocation->getPreprocessorOpts(); |
2189 | | |
2190 | 725 | CodeCompleteOpts.IncludeMacros = IncludeMacros && |
2191 | 725 | CachedCompletionResults.empty()721 ; |
2192 | 725 | CodeCompleteOpts.IncludeCodePatterns = IncludeCodePatterns; |
2193 | 725 | CodeCompleteOpts.IncludeGlobals = CachedCompletionResults.empty(); |
2194 | 725 | CodeCompleteOpts.IncludeBriefComments = IncludeBriefComments; |
2195 | 725 | CodeCompleteOpts.LoadExternal = Consumer.loadExternal(); |
2196 | 725 | CodeCompleteOpts.IncludeFixIts = Consumer.includeFixIts(); |
2197 | | |
2198 | 725 | assert(IncludeBriefComments == this->IncludeBriefCommentsInCodeCompletion); |
2199 | | |
2200 | 725 | FrontendOpts.CodeCompletionAt.FileName = std::string(File); |
2201 | 725 | FrontendOpts.CodeCompletionAt.Line = Line; |
2202 | 725 | FrontendOpts.CodeCompletionAt.Column = Column; |
2203 | | |
2204 | | // Set the language options appropriately. |
2205 | 725 | LangOpts = CCInvocation->getLangOpts(); |
2206 | | |
2207 | | // Spell-checking and warnings are wasteful during code-completion. |
2208 | 725 | LangOpts.SpellChecking = false; |
2209 | 725 | CCInvocation->getDiagnosticOpts().IgnoreWarnings = true; |
2210 | | |
2211 | 725 | std::unique_ptr<CompilerInstance> Clang( |
2212 | 725 | new CompilerInstance(PCHContainerOps)); |
2213 | | |
2214 | | // Recover resources if we crash before exiting this method. |
2215 | 725 | llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> |
2216 | 725 | CICleanup(Clang.get()); |
2217 | | |
2218 | 725 | auto &Inv = *CCInvocation; |
2219 | 725 | Clang->setInvocation(std::move(CCInvocation)); |
2220 | 725 | OriginalSourceFile = |
2221 | 725 | std::string(Clang->getFrontendOpts().Inputs[0].getFile()); |
2222 | | |
2223 | | // Set up diagnostics, capturing any diagnostics produced. |
2224 | 725 | Clang->setDiagnostics(&Diag); |
2225 | 725 | CaptureDroppedDiagnostics Capture(CaptureDiagsKind::All, |
2226 | 725 | Clang->getDiagnostics(), |
2227 | 725 | &StoredDiagnostics, nullptr); |
2228 | 725 | ProcessWarningOptions(Diag, Inv.getDiagnosticOpts()); |
2229 | | |
2230 | | // Create the target instance. |
2231 | 725 | if (!Clang->createTarget()) { |
2232 | 0 | Clang->setInvocation(nullptr); |
2233 | 0 | return; |
2234 | 0 | } |
2235 | | |
2236 | 725 | assert(Clang->getFrontendOpts().Inputs.size() == 1 && |
2237 | 725 | "Invocation must have exactly one source file!"); |
2238 | 725 | assert(Clang->getFrontendOpts().Inputs[0].getKind().getFormat() == |
2239 | 725 | InputKind::Source && |
2240 | 725 | "FIXME: AST inputs not yet supported here!"); |
2241 | 725 | assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() != |
2242 | 725 | Language::LLVM_IR && |
2243 | 725 | "IR inputs not support here!"); |
2244 | | |
2245 | | // Use the source and file managers that we were given. |
2246 | 725 | Clang->setFileManager(&FileMgr); |
2247 | 725 | Clang->setSourceManager(&SourceMgr); |
2248 | | |
2249 | | // Remap files. |
2250 | 725 | PreprocessorOpts.clearRemappedFiles(); |
2251 | 725 | PreprocessorOpts.RetainRemappedFileBuffers = true; |
2252 | 725 | for (const auto &RemappedFile : RemappedFiles) { |
2253 | 8 | PreprocessorOpts.addRemappedFile(RemappedFile.first, RemappedFile.second); |
2254 | 8 | OwnedBuffers.push_back(RemappedFile.second); |
2255 | 8 | } |
2256 | | |
2257 | | // Use the code completion consumer we were given, but adding any cached |
2258 | | // code-completion results. |
2259 | 725 | AugmentedCodeCompleteConsumer *AugmentedConsumer |
2260 | 725 | = new AugmentedCodeCompleteConsumer(*this, Consumer, CodeCompleteOpts); |
2261 | 725 | Clang->setCodeCompletionConsumer(AugmentedConsumer); |
2262 | | |
2263 | 725 | auto getUniqueID = |
2264 | 725 | [&FileMgr](StringRef Filename) -> std::optional<llvm::sys::fs::UniqueID> { |
2265 | 0 | if (auto Status = FileMgr.getVirtualFileSystem().status(Filename)) |
2266 | 0 | return Status->getUniqueID(); |
2267 | 0 | return std::nullopt; |
2268 | 0 | }; |
2269 | | |
2270 | 725 | auto hasSameUniqueID = [getUniqueID](StringRef LHS, StringRef RHS) { |
2271 | 84 | if (LHS == RHS) |
2272 | 84 | return true; |
2273 | 0 | if (auto LHSID = getUniqueID(LHS)) |
2274 | 0 | if (auto RHSID = getUniqueID(RHS)) |
2275 | 0 | return *LHSID == *RHSID; |
2276 | 0 | return false; |
2277 | 0 | }; |
2278 | | |
2279 | | // If we have a precompiled preamble, try to use it. We only allow |
2280 | | // the use of the precompiled preamble if we're if the completion |
2281 | | // point is within the main file, after the end of the precompiled |
2282 | | // preamble. |
2283 | 725 | std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer; |
2284 | 725 | if (Preamble && Line > 184 && hasSameUniqueID(File, OriginalSourceFile)84 ) { |
2285 | 84 | OverrideMainBuffer = getMainBufferWithPrecompiledPreamble( |
2286 | 84 | PCHContainerOps, Inv, &FileMgr.getVirtualFileSystem(), false, Line - 1); |
2287 | 84 | } |
2288 | | |
2289 | | // If the main file has been overridden due to the use of a preamble, |
2290 | | // make that override happen and introduce the preamble. |
2291 | 725 | if (OverrideMainBuffer) { |
2292 | 75 | assert(Preamble && |
2293 | 75 | "No preamble was built, but OverrideMainBuffer is not null"); |
2294 | | |
2295 | 75 | IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS = |
2296 | 75 | &FileMgr.getVirtualFileSystem(); |
2297 | 75 | Preamble->AddImplicitPreamble(Clang->getInvocation(), VFS, |
2298 | 75 | OverrideMainBuffer.get()); |
2299 | | // FIXME: there is no way to update VFS if it was changed by |
2300 | | // AddImplicitPreamble as FileMgr is accepted as a parameter by this method. |
2301 | | // We use on-disk preambles instead and rely on FileMgr's VFS to ensure the |
2302 | | // PCH files are always readable. |
2303 | 75 | OwnedBuffers.push_back(OverrideMainBuffer.release()); |
2304 | 650 | } else { |
2305 | 650 | PreprocessorOpts.PrecompiledPreambleBytes.first = 0; |
2306 | 650 | PreprocessorOpts.PrecompiledPreambleBytes.second = false; |
2307 | 650 | } |
2308 | | |
2309 | | // Disable the preprocessing record if modules are not enabled. |
2310 | 725 | if (!Clang->getLangOpts().Modules) |
2311 | 711 | PreprocessorOpts.DetailedRecord = false; |
2312 | | |
2313 | 725 | if (!Act) |
2314 | 721 | Act.reset(new SyntaxOnlyAction); |
2315 | | |
2316 | 725 | if (Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) { |
2317 | 725 | if (llvm::Error Err = Act->Execute()) { |
2318 | 0 | consumeError(std::move(Err)); // FIXME this drops errors on the floor. |
2319 | 0 | } |
2320 | 725 | Act->EndSourceFile(); |
2321 | 725 | } |
2322 | 725 | } |
2323 | | |
2324 | 62 | bool ASTUnit::Save(StringRef File) { |
2325 | 62 | if (HadModuleLoaderFatalFailure) |
2326 | 0 | return true; |
2327 | | |
2328 | | // FIXME: Can we somehow regenerate the stat cache here, or do we need to |
2329 | | // unconditionally create a stat cache when we parse the file? |
2330 | | |
2331 | 62 | if (llvm::Error Err = llvm::writeToOutput( |
2332 | 62 | File, [this](llvm::raw_ostream &Out) { |
2333 | 62 | return serialize(Out) ? llvm::make_error<llvm::StringError>( |
2334 | 0 | "ASTUnit serialization failed", |
2335 | 0 | llvm::inconvertibleErrorCode()) |
2336 | 62 | : llvm::Error::success(); |
2337 | 62 | })) { |
2338 | 0 | consumeError(std::move(Err)); |
2339 | 0 | return true; |
2340 | 0 | } |
2341 | 62 | return false; |
2342 | 62 | } |
2343 | | |
2344 | | static bool serializeUnit(ASTWriter &Writer, SmallVectorImpl<char> &Buffer, |
2345 | 62 | Sema &S, raw_ostream &OS) { |
2346 | 62 | Writer.WriteAST(S, std::string(), nullptr, ""); |
2347 | | |
2348 | | // Write the generated bitstream to "Out". |
2349 | 62 | if (!Buffer.empty()) |
2350 | 62 | OS.write(Buffer.data(), Buffer.size()); |
2351 | | |
2352 | 62 | return false; |
2353 | 62 | } |
2354 | | |
2355 | 62 | bool ASTUnit::serialize(raw_ostream &OS) { |
2356 | 62 | if (WriterData) |
2357 | 58 | return serializeUnit(WriterData->Writer, WriterData->Buffer, getSema(), OS); |
2358 | | |
2359 | 4 | SmallString<128> Buffer; |
2360 | 4 | llvm::BitstreamWriter Stream(Buffer); |
2361 | 4 | InMemoryModuleCache ModuleCache; |
2362 | 4 | ASTWriter Writer(Stream, Buffer, ModuleCache, {}); |
2363 | 4 | return serializeUnit(Writer, Buffer, getSema(), OS); |
2364 | 62 | } |
2365 | | |
2366 | | using SLocRemap = ContinuousRangeMap<unsigned, int, 2>; |
2367 | | |
2368 | | void ASTUnit::TranslateStoredDiagnostics( |
2369 | | FileManager &FileMgr, |
2370 | | SourceManager &SrcMgr, |
2371 | | const SmallVectorImpl<StandaloneDiagnostic> &Diags, |
2372 | 272 | SmallVectorImpl<StoredDiagnostic> &Out) { |
2373 | | // Map the standalone diagnostic into the new source manager. We also need to |
2374 | | // remap all the locations to the new view. This includes the diag location, |
2375 | | // any associated source ranges, and the source ranges of associated fix-its. |
2376 | | // FIXME: There should be a cleaner way to do this. |
2377 | 272 | SmallVector<StoredDiagnostic, 4> Result; |
2378 | 272 | Result.reserve(Diags.size()); |
2379 | | |
2380 | 272 | for (const auto &SD : Diags) { |
2381 | | // Rebuild the StoredDiagnostic. |
2382 | 85 | if (SD.Filename.empty()) |
2383 | 0 | continue; |
2384 | 85 | auto FE = FileMgr.getFile(SD.Filename); |
2385 | 85 | if (!FE) |
2386 | 0 | continue; |
2387 | 85 | SourceLocation FileLoc; |
2388 | 85 | auto ItFileID = PreambleSrcLocCache.find(SD.Filename); |
2389 | 85 | if (ItFileID == PreambleSrcLocCache.end()) { |
2390 | 15 | FileID FID = SrcMgr.translateFile(*FE); |
2391 | 15 | FileLoc = SrcMgr.getLocForStartOfFile(FID); |
2392 | 15 | PreambleSrcLocCache[SD.Filename] = FileLoc; |
2393 | 70 | } else { |
2394 | 70 | FileLoc = ItFileID->getValue(); |
2395 | 70 | } |
2396 | | |
2397 | 85 | if (FileLoc.isInvalid()) |
2398 | 0 | continue; |
2399 | 85 | SourceLocation L = FileLoc.getLocWithOffset(SD.LocOffset); |
2400 | 85 | FullSourceLoc Loc(L, SrcMgr); |
2401 | | |
2402 | 85 | SmallVector<CharSourceRange, 4> Ranges; |
2403 | 85 | Ranges.reserve(SD.Ranges.size()); |
2404 | 85 | for (const auto &Range : SD.Ranges) { |
2405 | 43 | SourceLocation BL = FileLoc.getLocWithOffset(Range.first); |
2406 | 43 | SourceLocation EL = FileLoc.getLocWithOffset(Range.second); |
2407 | 43 | Ranges.push_back(CharSourceRange::getCharRange(BL, EL)); |
2408 | 43 | } |
2409 | | |
2410 | 85 | SmallVector<FixItHint, 2> FixIts; |
2411 | 85 | FixIts.reserve(SD.FixIts.size()); |
2412 | 85 | for (const auto &FixIt : SD.FixIts) { |
2413 | 9 | FixIts.push_back(FixItHint()); |
2414 | 9 | FixItHint &FH = FixIts.back(); |
2415 | 9 | FH.CodeToInsert = FixIt.CodeToInsert; |
2416 | 9 | SourceLocation BL = FileLoc.getLocWithOffset(FixIt.RemoveRange.first); |
2417 | 9 | SourceLocation EL = FileLoc.getLocWithOffset(FixIt.RemoveRange.second); |
2418 | 9 | FH.RemoveRange = CharSourceRange::getCharRange(BL, EL); |
2419 | 9 | } |
2420 | | |
2421 | 85 | Result.push_back(StoredDiagnostic(SD.Level, SD.ID, |
2422 | 85 | SD.Message, Loc, Ranges, FixIts)); |
2423 | 85 | } |
2424 | 272 | Result.swap(Out); |
2425 | 272 | } |
2426 | | |
2427 | 111k | void ASTUnit::addFileLevelDecl(Decl *D) { |
2428 | 111k | assert(D); |
2429 | | |
2430 | | // We only care about local declarations. |
2431 | 111k | if (D->isFromASTFile()) |
2432 | 6 | return; |
2433 | | |
2434 | 111k | SourceManager &SM = *SourceMgr; |
2435 | 111k | SourceLocation Loc = D->getLocation(); |
2436 | 111k | if (Loc.isInvalid() || !SM.isLocalSourceLocation(Loc)111k ) |
2437 | 577 | return; |
2438 | | |
2439 | | // We only keep track of the file-level declarations of each file. |
2440 | 111k | if (!D->getLexicalDeclContext()->isFileContext()) |
2441 | 552 | return; |
2442 | | |
2443 | 110k | SourceLocation FileLoc = SM.getFileLoc(Loc); |
2444 | 110k | assert(SM.isLocalSourceLocation(FileLoc)); |
2445 | 110k | FileID FID; |
2446 | 110k | unsigned Offset; |
2447 | 110k | std::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc); |
2448 | 110k | if (FID.isInvalid()) |
2449 | 0 | return; |
2450 | | |
2451 | 110k | std::unique_ptr<LocDeclsTy> &Decls = FileDecls[FID]; |
2452 | 110k | if (!Decls) |
2453 | 12.2k | Decls = std::make_unique<LocDeclsTy>(); |
2454 | | |
2455 | 110k | std::pair<unsigned, Decl *> LocDecl(Offset, D); |
2456 | | |
2457 | 110k | if (Decls->empty() || Decls->back().first <= Offset98.4k ) { |
2458 | 110k | Decls->push_back(LocDecl); |
2459 | 110k | return; |
2460 | 110k | } |
2461 | | |
2462 | 217 | LocDeclsTy::iterator I = |
2463 | 217 | llvm::upper_bound(*Decls, LocDecl, llvm::less_first()); |
2464 | | |
2465 | 217 | Decls->insert(I, LocDecl); |
2466 | 217 | } |
2467 | | |
2468 | | void ASTUnit::findFileRegionDecls(FileID File, unsigned Offset, unsigned Length, |
2469 | 9.55k | SmallVectorImpl<Decl *> &Decls) { |
2470 | 9.55k | if (File.isInvalid()) |
2471 | 0 | return; |
2472 | | |
2473 | 9.55k | if (SourceMgr->isLoadedFileID(File)) { |
2474 | 9.15k | assert(Ctx->getExternalSource() && "No external source!"); |
2475 | 9.15k | return Ctx->getExternalSource()->FindFileRegionDecls(File, Offset, Length, |
2476 | 9.15k | Decls); |
2477 | 9.15k | } |
2478 | | |
2479 | 395 | FileDeclsTy::iterator I = FileDecls.find(File); |
2480 | 395 | if (I == FileDecls.end()) |
2481 | 20 | return; |
2482 | | |
2483 | 375 | LocDeclsTy &LocDecls = *I->second; |
2484 | 375 | if (LocDecls.empty()) |
2485 | 0 | return; |
2486 | | |
2487 | 375 | LocDeclsTy::iterator BeginIt = |
2488 | 1.28k | llvm::partition_point(LocDecls, [=](std::pair<unsigned, Decl *> LD) { |
2489 | 1.28k | return LD.first < Offset; |
2490 | 1.28k | }); |
2491 | 375 | if (BeginIt != LocDecls.begin()) |
2492 | 302 | --BeginIt; |
2493 | | |
2494 | | // If we are pointing at a top-level decl inside an objc container, we need |
2495 | | // to backtrack until we find it otherwise we will fail to report that the |
2496 | | // region overlaps with an objc container. |
2497 | 383 | while (BeginIt != LocDecls.begin() && |
2498 | 383 | BeginIt->second->isTopLevelDeclInObjCContainer()279 ) |
2499 | 8 | --BeginIt; |
2500 | | |
2501 | 375 | LocDeclsTy::iterator EndIt = llvm::upper_bound( |
2502 | 375 | LocDecls, std::make_pair(Offset + Length, (Decl *)nullptr), |
2503 | 375 | llvm::less_first()); |
2504 | 375 | if (EndIt != LocDecls.end()) |
2505 | 266 | ++EndIt; |
2506 | | |
2507 | 1.33k | for (LocDeclsTy::iterator DIt = BeginIt; DIt != EndIt; ++DIt960 ) |
2508 | 960 | Decls.push_back(DIt->second); |
2509 | 375 | } |
2510 | | |
2511 | | SourceLocation ASTUnit::getLocation(const FileEntry *File, |
2512 | 9.58k | unsigned Line, unsigned Col) const { |
2513 | 9.58k | const SourceManager &SM = getSourceManager(); |
2514 | 9.58k | SourceLocation Loc = SM.translateFileLineCol(File, Line, Col); |
2515 | 9.58k | return SM.getMacroArgExpandedLocation(Loc); |
2516 | 9.58k | } |
2517 | | |
2518 | | SourceLocation ASTUnit::getLocation(const FileEntry *File, |
2519 | 0 | unsigned Offset) const { |
2520 | 0 | const SourceManager &SM = getSourceManager(); |
2521 | 0 | SourceLocation FileLoc = SM.translateFileLineCol(File, 1, 1); |
2522 | 0 | return SM.getMacroArgExpandedLocation(FileLoc.getLocWithOffset(Offset)); |
2523 | 0 | } |
2524 | | |
2525 | | /// If \arg Loc is a loaded location from the preamble, returns |
2526 | | /// the corresponding local location of the main file, otherwise it returns |
2527 | | /// \arg Loc. |
2528 | 542k | SourceLocation ASTUnit::mapLocationFromPreamble(SourceLocation Loc) const { |
2529 | 542k | FileID PreambleID; |
2530 | 542k | if (SourceMgr) |
2531 | 542k | PreambleID = SourceMgr->getPreambleFileID(); |
2532 | | |
2533 | 542k | if (Loc.isInvalid() || !Preamble || PreambleID.isInvalid()17.5k ) |
2534 | 524k | return Loc; |
2535 | | |
2536 | 17.5k | unsigned Offs; |
2537 | 17.5k | if (SourceMgr->isInFileID(Loc, PreambleID, &Offs) && Offs < Preamble->getBounds().Size314 ) { |
2538 | 314 | SourceLocation FileLoc |
2539 | 314 | = SourceMgr->getLocForStartOfFile(SourceMgr->getMainFileID()); |
2540 | 314 | return FileLoc.getLocWithOffset(Offs); |
2541 | 314 | } |
2542 | | |
2543 | 17.2k | return Loc; |
2544 | 17.5k | } |
2545 | | |
2546 | | /// If \arg Loc is a local location of the main file but inside the |
2547 | | /// preamble chunk, returns the corresponding loaded location from the |
2548 | | /// preamble, otherwise it returns \arg Loc. |
2549 | 95.3k | SourceLocation ASTUnit::mapLocationToPreamble(SourceLocation Loc) const { |
2550 | 95.3k | FileID PreambleID; |
2551 | 95.3k | if (SourceMgr) |
2552 | 95.3k | PreambleID = SourceMgr->getPreambleFileID(); |
2553 | | |
2554 | 95.3k | if (Loc.isInvalid() || !Preamble19.4k || PreambleID.isInvalid()363 ) |
2555 | 94.9k | return Loc; |
2556 | | |
2557 | 363 | unsigned Offs; |
2558 | 363 | if (SourceMgr->isInFileID(Loc, SourceMgr->getMainFileID(), &Offs) && |
2559 | 363 | Offs < Preamble->getBounds().Size225 ) { |
2560 | 72 | SourceLocation FileLoc = SourceMgr->getLocForStartOfFile(PreambleID); |
2561 | 72 | return FileLoc.getLocWithOffset(Offs); |
2562 | 72 | } |
2563 | | |
2564 | 291 | return Loc; |
2565 | 363 | } |
2566 | | |
2567 | 9.59k | bool ASTUnit::isInPreambleFileID(SourceLocation Loc) const { |
2568 | 9.59k | FileID FID; |
2569 | 9.59k | if (SourceMgr) |
2570 | 9.59k | FID = SourceMgr->getPreambleFileID(); |
2571 | | |
2572 | 9.59k | if (Loc.isInvalid() || FID.isInvalid()) |
2573 | 9.45k | return false; |
2574 | | |
2575 | 141 | return SourceMgr->isInFileID(Loc, FID); |
2576 | 9.59k | } |
2577 | | |
2578 | 29 | bool ASTUnit::isInMainFileID(SourceLocation Loc) const { |
2579 | 29 | FileID FID; |
2580 | 29 | if (SourceMgr) |
2581 | 29 | FID = SourceMgr->getMainFileID(); |
2582 | | |
2583 | 29 | if (Loc.isInvalid() || FID.isInvalid()28 ) |
2584 | 1 | return false; |
2585 | | |
2586 | 28 | return SourceMgr->isInFileID(Loc, FID); |
2587 | 29 | } |
2588 | | |
2589 | 7 | SourceLocation ASTUnit::getEndOfPreambleFileID() const { |
2590 | 7 | FileID FID; |
2591 | 7 | if (SourceMgr) |
2592 | 7 | FID = SourceMgr->getPreambleFileID(); |
2593 | | |
2594 | 7 | if (FID.isInvalid()) |
2595 | 0 | return {}; |
2596 | | |
2597 | 7 | return SourceMgr->getLocForEndOfFile(FID); |
2598 | 7 | } |
2599 | | |
2600 | 9 | SourceLocation ASTUnit::getStartOfMainFileID() const { |
2601 | 9 | FileID FID; |
2602 | 9 | if (SourceMgr) |
2603 | 9 | FID = SourceMgr->getMainFileID(); |
2604 | | |
2605 | 9 | if (FID.isInvalid()) |
2606 | 0 | return {}; |
2607 | | |
2608 | 9 | return SourceMgr->getLocForStartOfFile(FID); |
2609 | 9 | } |
2610 | | |
2611 | | llvm::iterator_range<PreprocessingRecord::iterator> |
2612 | 9 | ASTUnit::getLocalPreprocessingEntities() const { |
2613 | 9 | if (isMainFileAST()) { |
2614 | 9 | serialization::ModuleFile & |
2615 | 9 | Mod = Reader->getModuleManager().getPrimaryModule(); |
2616 | 9 | return Reader->getModulePreprocessedEntities(Mod); |
2617 | 9 | } |
2618 | | |
2619 | 0 | if (PreprocessingRecord *PPRec = PP->getPreprocessingRecord()) |
2620 | 0 | return llvm::make_range(PPRec->local_begin(), PPRec->local_end()); |
2621 | | |
2622 | 0 | return llvm::make_range(PreprocessingRecord::iterator(), |
2623 | 0 | PreprocessingRecord::iterator()); |
2624 | 0 | } |
2625 | | |
2626 | 11 | bool ASTUnit::visitLocalTopLevelDecls(void *context, DeclVisitorFn Fn) { |
2627 | 11 | if (isMainFileAST()) { |
2628 | 11 | serialization::ModuleFile & |
2629 | 11 | Mod = Reader->getModuleManager().getPrimaryModule(); |
2630 | 66 | for (const auto *D : Reader->getModuleFileLevelDecls(Mod)) { |
2631 | 66 | if (!Fn(context, D)) |
2632 | 0 | return false; |
2633 | 66 | } |
2634 | | |
2635 | 11 | return true; |
2636 | 11 | } |
2637 | | |
2638 | 0 | for (ASTUnit::top_level_iterator TL = top_level_begin(), |
2639 | 0 | TLEnd = top_level_end(); |
2640 | 0 | TL != TLEnd; ++TL) { |
2641 | 0 | if (!Fn(context, *TL)) |
2642 | 0 | return false; |
2643 | 0 | } |
2644 | | |
2645 | 0 | return true; |
2646 | 0 | } |
2647 | | |
2648 | 9 | OptionalFileEntryRef ASTUnit::getPCHFile() { |
2649 | 9 | if (!Reader) |
2650 | 0 | return std::nullopt; |
2651 | | |
2652 | 9 | serialization::ModuleFile *Mod = nullptr; |
2653 | 13 | Reader->getModuleManager().visit([&Mod](serialization::ModuleFile &M) { |
2654 | 13 | switch (M.Kind) { |
2655 | 4 | case serialization::MK_ImplicitModule: |
2656 | 4 | case serialization::MK_ExplicitModule: |
2657 | 4 | case serialization::MK_PrebuiltModule: |
2658 | 4 | return true; // skip dependencies. |
2659 | 0 | case serialization::MK_PCH: |
2660 | 0 | Mod = &M; |
2661 | 0 | return true; // found it. |
2662 | 0 | case serialization::MK_Preamble: |
2663 | 0 | return false; // look in dependencies. |
2664 | 9 | case serialization::MK_MainFile: |
2665 | 9 | return false; // look in dependencies. |
2666 | 13 | } |
2667 | | |
2668 | 0 | return true; |
2669 | 13 | }); |
2670 | 9 | if (Mod) |
2671 | 0 | return Mod->File; |
2672 | | |
2673 | 9 | return std::nullopt; |
2674 | 9 | } |
2675 | | |
2676 | 9 | bool ASTUnit::isModuleFile() const { |
2677 | 9 | return isMainFileAST() && getLangOpts().isCompilingModule(); |
2678 | 9 | } |
2679 | | |
2680 | 32 | InputKind ASTUnit::getInputKind() const { |
2681 | 32 | auto &LangOpts = getLangOpts(); |
2682 | | |
2683 | 32 | Language Lang; |
2684 | 32 | if (LangOpts.OpenCL) |
2685 | 0 | Lang = Language::OpenCL; |
2686 | 32 | else if (LangOpts.CUDA) |
2687 | 0 | Lang = Language::CUDA; |
2688 | 32 | else if (LangOpts.RenderScript) |
2689 | 0 | Lang = Language::RenderScript; |
2690 | 32 | else if (LangOpts.CPlusPlus) |
2691 | 9 | Lang = LangOpts.ObjC ? Language::ObjCXX0 : Language::CXX; |
2692 | 23 | else |
2693 | 23 | Lang = LangOpts.ObjC ? Language::ObjC : Language::C0 ; |
2694 | | |
2695 | 32 | InputKind::Format Fmt = InputKind::Source; |
2696 | 32 | if (LangOpts.getCompilingModule() == LangOptions::CMK_ModuleMap) |
2697 | 13 | Fmt = InputKind::ModuleMap; |
2698 | | |
2699 | | // We don't know if input was preprocessed. Assume not. |
2700 | 32 | bool PP = false; |
2701 | | |
2702 | 32 | return InputKind(Lang, Fmt, PP); |
2703 | 32 | } |
2704 | | |
2705 | | #ifndef NDEBUG |
2706 | 9.68k | ASTUnit::ConcurrencyState::ConcurrencyState() { |
2707 | 9.68k | Mutex = new std::recursive_mutex; |
2708 | 9.68k | } |
2709 | | |
2710 | 9.66k | ASTUnit::ConcurrencyState::~ConcurrencyState() { |
2711 | 9.66k | delete static_cast<std::recursive_mutex *>(Mutex); |
2712 | 9.66k | } |
2713 | | |
2714 | 20.8k | void ASTUnit::ConcurrencyState::start() { |
2715 | 20.8k | bool acquired = static_cast<std::recursive_mutex *>(Mutex)->try_lock(); |
2716 | 20.8k | assert(acquired && "Concurrent access to ASTUnit!"); |
2717 | 20.8k | } |
2718 | | |
2719 | 20.8k | void ASTUnit::ConcurrencyState::finish() { |
2720 | 20.8k | static_cast<std::recursive_mutex *>(Mutex)->unlock(); |
2721 | 20.8k | } |
2722 | | |
2723 | | #else // NDEBUG |
2724 | | |
2725 | | ASTUnit::ConcurrencyState::ConcurrencyState() { Mutex = nullptr; } |
2726 | | ASTUnit::ConcurrencyState::~ConcurrencyState() {} |
2727 | | void ASTUnit::ConcurrencyState::start() {} |
2728 | | void ASTUnit::ConcurrencyState::finish() {} |
2729 | | |
2730 | | #endif // NDEBUG |