static void clang_indexSourceFile_Impl(void *UserData) {
IndexSourceFileInfo *ITUI =
static_cast<IndexSourceFileInfo*>(UserData);
CXIndex CIdx = (CXIndex)ITUI->idxAction;
CXClientData client_data = ITUI->client_data;
IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks;
unsigned index_callbacks_size = ITUI->index_callbacks_size;
unsigned index_options = ITUI->index_options;
const char *source_filename = ITUI->source_filename;
const char * const *command_line_args = ITUI->command_line_args;
int num_command_line_args = ITUI->num_command_line_args;
struct CXUnsavedFile *unsaved_files = ITUI->unsaved_files;
unsigned num_unsaved_files = ITUI->num_unsaved_files;
CXTranslationUnit *out_TU = ITUI->out_TU;
unsigned TU_options = ITUI->TU_options;
ITUI->result = 1; // init as error.
if (out_TU)
*out_TU = 0;
bool requestedToGetTU = (out_TU != 0);
if (!CIdx)
return;
if (!client_index_callbacks || index_callbacks_size == 0)
return;
IndexerCallbacks CB;
memset(&CB, 0, sizeof(CB));
unsigned ClientCBSize = index_callbacks_size < sizeof(CB)
? index_callbacks_size : sizeof(CB);
memcpy(&CB, client_index_callbacks, ClientCBSize);
CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx);
if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing))
setThreadBackgroundPriority();
CaptureDiagnosticConsumer *CaptureDiag = new CaptureDiagnosticConsumer();
// Configure the diagnostics.
DiagnosticOptions DiagOpts;
IntrusiveRefCntPtr<DiagnosticsEngine>
Diags(CompilerInstance::createDiagnostics(DiagOpts, num_command_line_args,
command_line_args,
CaptureDiag,
/*ShouldOwnClient=*/true,
/*ShouldCloneClient=*/false));
// Recover resources if we crash before exiting this function.
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
DiagCleanup(Diags.getPtr());
OwningPtr<std::vector<const char *> >
Args(new std::vector<const char*>());
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<std::vector<const char*> >
ArgsCleanup(Args.get());
Args->insert(Args->end(), command_line_args,
command_line_args + num_command_line_args);
// The 'source_filename' argument is optional. If the caller does not
// specify it then it is assumed that the source file is specified
// in the actual argument list.
// Put the source file after command_line_args otherwise if '-x' flag is
// present it will be unused.
if (source_filename)
Args->push_back(source_filename);
IntrusiveRefCntPtr<CompilerInvocation>
CInvok(createInvocationFromCommandLine(*Args, Diags));
if (!CInvok)
return;
// Recover resources if we crash before exiting this function.
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInvocation,
llvm::CrashRecoveryContextReleaseRefCleanup<CompilerInvocation> >
CInvokCleanup(CInvok.getPtr());
if (CInvok->getFrontendOpts().Inputs.empty())
return;
OwningPtr<MemBufferOwner> BufOwner(new MemBufferOwner());
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<MemBufferOwner>
BufOwnerCleanup(BufOwner.get());
for (unsigned I = 0; I != num_unsaved_files; ++I) {
StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length);
const llvm::MemoryBuffer *Buffer
= llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename);
CInvok->getPreprocessorOpts().addRemappedFile(unsaved_files[I].Filename, Buffer);
BufOwner->Buffers.push_back(Buffer);
}
// Since libclang is primarily used by batch tools dealing with
// (often very broken) source code, where spell-checking can have a
// significant negative impact on performance (particularly when
// precompiled headers are involved), we disable it.
CInvok->getLangOpts()->SpellChecking = false;
if (index_options & CXIndexOpt_SuppressWarnings)
CInvok->getDiagnosticOpts().IgnoreWarnings = true;
ASTUnit *Unit = ASTUnit::create(CInvok.getPtr(), Diags,
/*CaptureDiagnostics=*/true,
/*UserFilesAreVolatile=*/true);
OwningPtr<CXTUOwner> CXTU(new CXTUOwner(MakeCXTranslationUnit(CXXIdx, Unit)));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<CXTUOwner>
CXTUCleanup(CXTU.get());
OwningPtr<IndexingFrontendAction> IndexAction;
IndexAction.reset(new IndexingFrontendAction(client_data, CB,
index_options, CXTU->getTU()));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<IndexingFrontendAction>
IndexActionCleanup(IndexAction.get());
bool Persistent = requestedToGetTU;
bool OnlyLocalDecls = false;
bool PrecompilePreamble = false;
bool CacheCodeCompletionResults = false;
PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts();
PPOpts.AllowPCHWithCompilerErrors = true;
if (requestedToGetTU) {
OnlyLocalDecls = CXXIdx->getOnlyLocalDecls();
PrecompilePreamble = TU_options & CXTranslationUnit_PrecompiledPreamble;
// FIXME: Add a flag for modules.
CacheCodeCompletionResults
= TU_options & CXTranslationUnit_CacheCompletionResults;
if (TU_options & CXTranslationUnit_DetailedPreprocessingRecord) {
PPOpts.DetailedRecord = true;
}
}
IndexAction->EnablePPDetailedRecordForModules
= PPOpts.DetailedRecord ||
(TU_options & CXTranslationUnit_DetailedPreprocessingRecord);
if (!requestedToGetTU)
PPOpts.DetailedRecord = false;
DiagnosticErrorTrap DiagTrap(*Diags);
bool Success = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags,
IndexAction.get(),
Unit,
Persistent,
CXXIdx->getClangResourcesPath(),
OnlyLocalDecls,
/*CaptureDiagnostics=*/true,
PrecompilePreamble,
CacheCodeCompletionResults,
/*IncludeBriefCommentsInCodeCompletion=*/false,
/*UserFilesAreVolatile=*/true);
if (DiagTrap.hasErrorOccurred() && CXXIdx->getDisplayDiagnostics())
printDiagsToStderr(Unit);
if (!Success)
return;
if (out_TU)
*out_TU = CXTU->takeTU();
ITUI->result = 0; // success.
}
static CXErrorCode clang_indexSourceFile_Impl(
CXIndexAction cxIdxAction, CXClientData client_data,
IndexerCallbacks *client_index_callbacks, unsigned index_callbacks_size,
unsigned index_options, const char *source_filename,
const char *const *command_line_args, int num_command_line_args,
ArrayRef<CXUnsavedFile> unsaved_files, CXTranslationUnit *out_TU,
unsigned TU_options) {
if (out_TU)
*out_TU = nullptr;
bool requestedToGetTU = (out_TU != nullptr);
if (!cxIdxAction) {
return CXError_InvalidArguments;
}
if (!client_index_callbacks || index_callbacks_size == 0) {
return CXError_InvalidArguments;
}
IndexerCallbacks CB;
memset(&CB, 0, sizeof(CB));
unsigned ClientCBSize = index_callbacks_size < sizeof(CB)
? index_callbacks_size : sizeof(CB);
memcpy(&CB, client_index_callbacks, ClientCBSize);
IndexSessionData *IdxSession = static_cast<IndexSessionData *>(cxIdxAction);
CIndexer *CXXIdx = static_cast<CIndexer *>(IdxSession->CIdx);
if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing))
setThreadBackgroundPriority();
bool CaptureDiagnostics = !Logger::isLoggingEnabled();
CaptureDiagnosticConsumer *CaptureDiag = nullptr;
if (CaptureDiagnostics)
CaptureDiag = new CaptureDiagnosticConsumer();
// Configure the diagnostics.
IntrusiveRefCntPtr<DiagnosticsEngine>
Diags(CompilerInstance::createDiagnostics(new DiagnosticOptions,
CaptureDiag,
/*ShouldOwnClient=*/true));
// Recover resources if we crash before exiting this function.
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
DiagCleanup(Diags.get());
std::unique_ptr<std::vector<const char *>> Args(
new std::vector<const char *>());
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<std::vector<const char*> >
ArgsCleanup(Args.get());
Args->insert(Args->end(), command_line_args,
command_line_args + num_command_line_args);
// The 'source_filename' argument is optional. If the caller does not
// specify it then it is assumed that the source file is specified
// in the actual argument list.
// Put the source file after command_line_args otherwise if '-x' flag is
// present it will be unused.
if (source_filename)
Args->push_back(source_filename);
IntrusiveRefCntPtr<CompilerInvocation>
CInvok(createInvocationFromCommandLine(*Args, Diags));
if (!CInvok)
return CXError_Failure;
// Recover resources if we crash before exiting this function.
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInvocation,
llvm::CrashRecoveryContextReleaseRefCleanup<CompilerInvocation> >
CInvokCleanup(CInvok.get());
if (CInvok->getFrontendOpts().Inputs.empty())
return CXError_Failure;
typedef SmallVector<std::unique_ptr<llvm::MemoryBuffer>, 8> MemBufferOwner;
std::unique_ptr<MemBufferOwner> BufOwner(new MemBufferOwner);
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<MemBufferOwner> BufOwnerCleanup(
BufOwner.get());
for (auto &UF : unsaved_files) {
std::unique_ptr<llvm::MemoryBuffer> MB =
llvm::MemoryBuffer::getMemBufferCopy(getContents(UF), UF.Filename);
CInvok->getPreprocessorOpts().addRemappedFile(UF.Filename, MB.get());
BufOwner->push_back(std::move(MB));
}
// Since libclang is primarily used by batch tools dealing with
// (often very broken) source code, where spell-checking can have a
// significant negative impact on performance (particularly when
// precompiled headers are involved), we disable it.
CInvok->getLangOpts()->SpellChecking = false;
if (index_options & CXIndexOpt_SuppressWarnings)
CInvok->getDiagnosticOpts().IgnoreWarnings = true;
ASTUnit *Unit = ASTUnit::create(CInvok.get(), Diags, CaptureDiagnostics,
/*UserFilesAreVolatile=*/true);
if (!Unit)
return CXError_InvalidArguments;
std::unique_ptr<CXTUOwner> CXTU(
new CXTUOwner(MakeCXTranslationUnit(CXXIdx, Unit)));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<CXTUOwner>
CXTUCleanup(CXTU.get());
// Enable the skip-parsed-bodies optimization only for C++; this may be
// revisited.
bool SkipBodies = (index_options & CXIndexOpt_SkipParsedBodiesInSession) &&
CInvok->getLangOpts()->CPlusPlus;
if (SkipBodies)
CInvok->getFrontendOpts().SkipFunctionBodies = true;
std::unique_ptr<IndexingFrontendAction> IndexAction;
IndexAction.reset(new IndexingFrontendAction(client_data, CB,
index_options, CXTU->getTU(),
SkipBodies ? IdxSession->SkipBodyData.get() : nullptr));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<IndexingFrontendAction>
IndexActionCleanup(IndexAction.get());
bool Persistent = requestedToGetTU;
bool OnlyLocalDecls = false;
bool PrecompilePreamble = false;
bool CacheCodeCompletionResults = false;
PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts();
PPOpts.AllowPCHWithCompilerErrors = true;
if (requestedToGetTU) {
OnlyLocalDecls = CXXIdx->getOnlyLocalDecls();
PrecompilePreamble = TU_options & CXTranslationUnit_PrecompiledPreamble;
// FIXME: Add a flag for modules.
CacheCodeCompletionResults
= TU_options & CXTranslationUnit_CacheCompletionResults;
}
if (TU_options & CXTranslationUnit_DetailedPreprocessingRecord) {
PPOpts.DetailedRecord = true;
}
if (!requestedToGetTU && !CInvok->getLangOpts()->Modules)
PPOpts.DetailedRecord = false;
DiagnosticErrorTrap DiagTrap(*Diags);
bool Success = ASTUnit::LoadFromCompilerInvocationAction(
CInvok.get(), CXXIdx->getPCHContainerOperations(), Diags,
IndexAction.get(), Unit, Persistent, CXXIdx->getClangResourcesPath(),
OnlyLocalDecls, CaptureDiagnostics, PrecompilePreamble,
CacheCodeCompletionResults,
/*IncludeBriefCommentsInCodeCompletion=*/false,
/*UserFilesAreVolatile=*/true);
if (DiagTrap.hasErrorOccurred() && CXXIdx->getDisplayDiagnostics())
printDiagsToStderr(Unit);
if (isASTReadError(Unit))
return CXError_ASTReadError;
if (!Success)
return CXError_Failure;
if (out_TU)
*out_TU = CXTU->takeTU();
return CXError_Success;
}