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llvm-project/clang/tools/libclang/Indexing.cpp

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//===- CIndexHigh.cpp - Higher level API functions ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "IndexingContext.h"
#include "CXCursor.h"
#include "CXSourceLocation.h"
#include "CXTranslationUnit.h"
#include "CXString.h"
#include "CIndexer.h"
#include "clang/Frontend/ASTUnit.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/Utils.h"
#include "clang/Sema/SemaConsumer.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Lex/PPCallbacks.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/CrashRecoveryContext.h"
using namespace clang;
using namespace cxstring;
using namespace cxtu;
using namespace cxindex;
namespace {
//===----------------------------------------------------------------------===//
// IndexPPCallbacks
//===----------------------------------------------------------------------===//
class IndexPPCallbacks : public PPCallbacks {
Preprocessor &PP;
IndexingContext &IndexCtx;
bool IsMainFileEntered;
public:
IndexPPCallbacks(Preprocessor &PP, IndexingContext &indexCtx)
: PP(PP), IndexCtx(indexCtx), IsMainFileEntered(false) { }
virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason,
SrcMgr::CharacteristicKind FileType, FileID PrevFID) {
if (IsMainFileEntered)
return;
SourceManager &SM = PP.getSourceManager();
SourceLocation MainFileLoc = SM.getLocForStartOfFile(SM.getMainFileID());
if (Loc == MainFileLoc && Reason == PPCallbacks::EnterFile) {
IsMainFileEntered = true;
IndexCtx.enteredMainFile(SM.getFileEntryForID(SM.getMainFileID()));
}
}
virtual void InclusionDirective(SourceLocation HashLoc,
const Token &IncludeTok,
StringRef FileName,
bool IsAngled,
const FileEntry *File,
SourceLocation EndLoc,
StringRef SearchPath,
StringRef RelativePath) {
bool isImport = (IncludeTok.is(tok::identifier) &&
IncludeTok.getIdentifierInfo()->getPPKeywordID() == tok::pp_import);
IndexCtx.ppIncludedFile(HashLoc, FileName, File, isImport, IsAngled);
}
/// MacroDefined - This hook is called whenever a macro definition is seen.
virtual void MacroDefined(const Token &Id, const MacroInfo *MI) {
}
/// MacroUndefined - This hook is called whenever a macro #undef is seen.
/// MI is released immediately following this callback.
virtual void MacroUndefined(const Token &MacroNameTok, const MacroInfo *MI) {
}
/// MacroExpands - This is called by when a macro invocation is found.
virtual void MacroExpands(const Token &MacroNameTok, const MacroInfo* MI,
SourceRange Range) {
}
/// SourceRangeSkipped - This hook is called when a source range is skipped.
/// \param Range The SourceRange that was skipped. The range begins at the
/// #if/#else directive and ends after the #endif/#else directive.
virtual void SourceRangeSkipped(SourceRange Range) {
}
};
//===----------------------------------------------------------------------===//
// IndexingConsumer
//===----------------------------------------------------------------------===//
class IndexingConsumer : public ASTConsumer {
IndexingContext &IndexCtx;
public:
explicit IndexingConsumer(IndexingContext &indexCtx)
: IndexCtx(indexCtx) { }
// ASTConsumer Implementation
virtual void Initialize(ASTContext &Context) {
IndexCtx.setASTContext(Context);
IndexCtx.startedTranslationUnit();
}
virtual void HandleTranslationUnit(ASTContext &Ctx) {
}
virtual bool HandleTopLevelDecl(DeclGroupRef DG) {
IndexCtx.indexDeclGroupRef(DG);
return !IndexCtx.shouldAbort();
}
/// \brief Handle the specified top-level declaration that occurred inside
/// and ObjC container.
virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) {
// They will be handled after the interface is seen first.
IndexCtx.addTUDeclInObjCContainer(D);
}
/// \brief This is called by the AST reader when deserializing things.
/// The default implementation forwards to HandleTopLevelDecl but we don't
/// care about them when indexing, so have an empty definition.
virtual void HandleInterestingDecl(DeclGroupRef D) {}
};
//===----------------------------------------------------------------------===//
// CaptureDiagnosticConsumer
//===----------------------------------------------------------------------===//
class CaptureDiagnosticConsumer : public DiagnosticConsumer {
SmallVector<StoredDiagnostic, 4> Errors;
public:
virtual void HandleDiagnostic(DiagnosticsEngine::Level level,
const Diagnostic &Info) {
if (level >= DiagnosticsEngine::Error)
Errors.push_back(StoredDiagnostic(level, Info));
}
DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const {
return new IgnoringDiagConsumer();
}
};
//===----------------------------------------------------------------------===//
// IndexingFrontendAction
//===----------------------------------------------------------------------===//
class IndexingFrontendAction : public ASTFrontendAction {
IndexingContext IndexCtx;
public:
IndexingFrontendAction(CXClientData clientData,
IndexerCallbacks &indexCallbacks,
unsigned indexOptions,
CXTranslationUnit cxTU)
: IndexCtx(clientData, indexCallbacks, indexOptions, cxTU) { }
virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
StringRef InFile) {
IndexCtx.setASTContext(CI.getASTContext());
Preprocessor &PP = CI.getPreprocessor();
PP.addPPCallbacks(new IndexPPCallbacks(PP, IndexCtx));
return new IndexingConsumer(IndexCtx);
}
virtual TranslationUnitKind getTranslationUnitKind() { return TU_Prefix; }
virtual bool hasCodeCompletionSupport() const { return false; }
};
//===----------------------------------------------------------------------===//
// clang_indexSourceFileUnit Implementation
//===----------------------------------------------------------------------===//
struct IndexSourceFileInfo {
CXIndexAction idxAction;
CXClientData client_data;
IndexerCallbacks *index_callbacks;
unsigned index_callbacks_size;
unsigned index_options;
const char *source_filename;
const char *const *command_line_args;
int num_command_line_args;
struct CXUnsavedFile *unsaved_files;
unsigned num_unsaved_files;
CXTranslationUnit *out_TU;
unsigned TU_options;
int result;
};
struct MemBufferOwner {
SmallVector<const llvm::MemoryBuffer *, 8> Buffers;
~MemBufferOwner() {
for (SmallVectorImpl<const llvm::MemoryBuffer *>::iterator
I = Buffers.begin(), E = Buffers.end(); I != E; ++I)
delete *I;
}
};
} // anonymous namespace
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);
CaptureDiagnosticConsumer *CaptureDiag = new CaptureDiagnosticConsumer();
// Configure the diagnostics.
DiagnosticOptions DiagOpts;
llvm::IntrusiveRefCntPtr<DiagnosticsEngine>
Diags(CompilerInstance::createDiagnostics(DiagOpts, num_command_line_args,
command_line_args,
CaptureDiag,
/*ShouldOwnClient=*/true));
// Recover resources if we crash before exiting this function.
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
DiagCleanup(Diags.getPtr());
llvm::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);
llvm::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;
llvm::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 (!requestedToGetTU)
CInvok->getPreprocessorOpts().DetailedRecord = false;
ASTUnit *Unit = ASTUnit::create(CInvok.getPtr(), Diags,
/*CaptureDiagnostics=*/true);
llvm::OwningPtr<CXTUOwner> CXTU(new CXTUOwner(MakeCXTranslationUnit(Unit)));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<CXTUOwner>
CXTUCleanup(CXTU.get());
llvm::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;
StringRef ResourceFilesPath = CXXIdx->getClangResourcesPath();
bool OnlyLocalDecls = false;
bool CaptureDiagnostics = true;
bool PrecompilePreamble = false;
bool CacheCodeCompletionResults = false;
PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts();
PPOpts.DetailedRecord = false;
PPOpts.DetailedRecordIncludesNestedMacroExpansions = false;
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;
PPOpts.DetailedRecordIncludesNestedMacroExpansions
= (TU_options & CXTranslationUnit_NestedMacroExpansions);
}
}
Unit = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags,
IndexAction.get(),
Unit,
Persistent,
ResourceFilesPath,
OnlyLocalDecls,
CaptureDiagnostics,
PrecompilePreamble,
CacheCodeCompletionResults);
if (!Unit)
return;
// FIXME: Set state of the ASTUnit according to the TU_options.
if (out_TU)
*out_TU = CXTU->takeTU();
ITUI->result = 0; // success.
}
//===----------------------------------------------------------------------===//
// clang_indexTranslationUnit Implementation
//===----------------------------------------------------------------------===//
namespace {
struct IndexTranslationUnitInfo {
CXIndexAction idxAction;
CXClientData client_data;
IndexerCallbacks *index_callbacks;
unsigned index_callbacks_size;
unsigned index_options;
CXTranslationUnit TU;
int result;
};
} // anonymous namespace
static void indexPreprocessingRecord(ASTUnit &Unit, IndexingContext &IdxCtx) {
Preprocessor &PP = Unit.getPreprocessor();
if (!PP.getPreprocessingRecord())
return;
PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
// FIXME: Only deserialize inclusion directives.
// FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module
// that it depends on.
bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls();
PreprocessingRecord::iterator I, E;
if (OnlyLocal) {
I = PPRec.local_begin();
E = PPRec.local_end();
} else {
I = PPRec.begin();
E = PPRec.end();
}
for (; I != E; ++I) {
PreprocessedEntity *PPE = *I;
if (InclusionDirective *ID = dyn_cast<InclusionDirective>(PPE)) {
IdxCtx.ppIncludedFile(ID->getSourceRange().getBegin(), ID->getFileName(),
ID->getFile(), ID->getKind() == InclusionDirective::Import,
!ID->wasInQuotes());
}
}
}
static void indexTranslationUnit(ASTUnit &Unit, IndexingContext &IdxCtx) {
// FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module
// that it depends on.
bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls();
if (OnlyLocal) {
for (ASTUnit::top_level_iterator TL = Unit.top_level_begin(),
TLEnd = Unit.top_level_end();
TL != TLEnd; ++TL) {
IdxCtx.indexTopLevelDecl(*TL);
if (IdxCtx.shouldAbort())
return;
}
} else {
TranslationUnitDecl *TUDecl = Unit.getASTContext().getTranslationUnitDecl();
for (TranslationUnitDecl::decl_iterator
I = TUDecl->decls_begin(), E = TUDecl->decls_end(); I != E; ++I) {
IdxCtx.indexTopLevelDecl(*I);
if (IdxCtx.shouldAbort())
return;
}
}
}
static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx) {
// FIXME: Create a CXDiagnosticSet from TU;
// IdxCtx.handleDiagnosticSet(Set);
}
static void clang_indexTranslationUnit_Impl(void *UserData) {
IndexTranslationUnitInfo *ITUI =
static_cast<IndexTranslationUnitInfo*>(UserData);
CXTranslationUnit TU = ITUI->TU;
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;
ITUI->result = 1; // init as error.
if (!TU)
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);
llvm::OwningPtr<IndexingContext> IndexCtx;
IndexCtx.reset(new IndexingContext(client_data, CB, index_options, TU));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<IndexingContext>
IndexCtxCleanup(IndexCtx.get());
llvm::OwningPtr<IndexingConsumer> IndexConsumer;
IndexConsumer.reset(new IndexingConsumer(*IndexCtx));
// Recover resources if we crash before exiting this method.
llvm::CrashRecoveryContextCleanupRegistrar<IndexingConsumer>
IndexConsumerCleanup(IndexConsumer.get());
ASTUnit *Unit = static_cast<ASTUnit *>(TU->TUData);
if (!Unit)
return;
FileManager &FileMgr = Unit->getFileManager();
if (Unit->getOriginalSourceFileName().empty())
IndexCtx->enteredMainFile(0);
else
IndexCtx->enteredMainFile(FileMgr.getFile(Unit->getOriginalSourceFileName()));
IndexConsumer->Initialize(Unit->getASTContext());
indexPreprocessingRecord(*Unit, *IndexCtx);
indexTranslationUnit(*Unit, *IndexCtx);
indexDiagnostics(TU, *IndexCtx);
ITUI->result = 0;
}
//===----------------------------------------------------------------------===//
// libclang public APIs.
//===----------------------------------------------------------------------===//
extern "C" {
int clang_index_isEntityObjCContainerKind(CXIdxEntityKind K) {
return CXIdxEntity_ObjCClass <= K && K <= CXIdxEntity_ObjCCategory;
}
const CXIdxObjCContainerDeclInfo *
clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *DInfo) {
if (!DInfo)
return 0;
const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
if (const ObjCContainerDeclInfo *
ContInfo = dyn_cast<ObjCContainerDeclInfo>(DI))
return &ContInfo->ObjCContDeclInfo;
return 0;
}
const CXIdxObjCInterfaceDeclInfo *
clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *DInfo) {
if (!DInfo)
return 0;
const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
if (const ObjCInterfaceDeclInfo *
InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI))
return &InterInfo->ObjCInterDeclInfo;
return 0;
}
const CXIdxObjCCategoryDeclInfo *
clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *DInfo){
if (!DInfo)
return 0;
const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
if (const ObjCCategoryDeclInfo *
CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI))
return &CatInfo->ObjCCatDeclInfo;
return 0;
}
const CXIdxObjCProtocolRefListInfo *
clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *DInfo) {
if (!DInfo)
return 0;
const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
if (const ObjCInterfaceDeclInfo *
InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI))
return InterInfo->ObjCInterDeclInfo.protocols;
if (const ObjCProtocolDeclInfo *
ProtInfo = dyn_cast<ObjCProtocolDeclInfo>(DI))
return &ProtInfo->ObjCProtoRefListInfo;
return 0;
}
const CXIdxIBOutletCollectionAttrInfo *
clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *AInfo) {
if (!AInfo)
return 0;
const AttrInfo *DI = static_cast<const AttrInfo *>(AInfo);
if (const IBOutletCollectionInfo *
IBInfo = dyn_cast<IBOutletCollectionInfo>(DI))
return &IBInfo->IBCollInfo;
return 0;
}
const CXIdxCXXClassDeclInfo *
clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *DInfo) {
if (!DInfo)
return 0;
const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
if (const CXXClassDeclInfo *ClassInfo = dyn_cast<CXXClassDeclInfo>(DI))
return &ClassInfo->CXXClassInfo;
return 0;
}
CXIdxClientContainer
clang_index_getClientContainer(const CXIdxContainerInfo *info) {
if (!info)
return 0;
ContainerInfo *Container = (ContainerInfo*)info;
return Container->IndexCtx->getClientContainerForDC(Container->DC);
}
void clang_index_setClientContainer(const CXIdxContainerInfo *info,
CXIdxClientContainer client) {
if (!info)
return;
ContainerInfo *Container = (ContainerInfo*)info;
Container->IndexCtx->addContainerInMap(Container->DC, client);
}
CXIdxClientEntity clang_index_getClientEntity(const CXIdxEntityInfo *info) {
if (!info)
return 0;
EntityInfo *Entity = (EntityInfo*)info;
return Entity->IndexCtx->getClientEntity(Entity->Dcl);
}
void clang_index_setClientEntity(const CXIdxEntityInfo *info,
CXIdxClientEntity client) {
if (!info)
return;
EntityInfo *Entity = (EntityInfo*)info;
Entity->IndexCtx->setClientEntity(Entity->Dcl, client);
}
CXIndexAction clang_IndexAction_create(CXIndex CIdx) {
// For now, CXIndexAction is featureless.
return CIdx;
}
void clang_IndexAction_dispose(CXIndexAction idxAction) {
// For now, CXIndexAction is featureless.
}
int clang_indexSourceFile(CXIndexAction idxAction,
CXClientData client_data,
IndexerCallbacks *index_callbacks,
unsigned index_callbacks_size,
unsigned index_options,
const char *source_filename,
const char * const *command_line_args,
int num_command_line_args,
struct CXUnsavedFile *unsaved_files,
unsigned num_unsaved_files,
CXTranslationUnit *out_TU,
unsigned TU_options) {
IndexSourceFileInfo ITUI = { idxAction, client_data, index_callbacks,
index_callbacks_size, index_options,
source_filename, command_line_args,
num_command_line_args, unsaved_files,
num_unsaved_files, out_TU, TU_options, 0 };
if (getenv("LIBCLANG_NOTHREADS")) {
clang_indexSourceFile_Impl(&ITUI);
return ITUI.result;
}
llvm::CrashRecoveryContext CRC;
if (!RunSafely(CRC, clang_indexSourceFile_Impl, &ITUI)) {
fprintf(stderr, "libclang: crash detected during indexing source file: {\n");
fprintf(stderr, " 'source_filename' : '%s'\n", source_filename);
fprintf(stderr, " 'command_line_args' : [");
for (int i = 0; i != num_command_line_args; ++i) {
if (i)
fprintf(stderr, ", ");
fprintf(stderr, "'%s'", command_line_args[i]);
}
fprintf(stderr, "],\n");
fprintf(stderr, " 'unsaved_files' : [");
for (unsigned i = 0; i != num_unsaved_files; ++i) {
if (i)
fprintf(stderr, ", ");
fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename,
unsaved_files[i].Length);
}
fprintf(stderr, "],\n");
fprintf(stderr, " 'options' : %d,\n", TU_options);
fprintf(stderr, "}\n");
return 1;
} else if (getenv("LIBCLANG_RESOURCE_USAGE")) {
if (out_TU)
PrintLibclangResourceUsage(*out_TU);
}
return ITUI.result;
}
int clang_indexTranslationUnit(CXIndexAction idxAction,
CXClientData client_data,
IndexerCallbacks *index_callbacks,
unsigned index_callbacks_size,
unsigned index_options,
CXTranslationUnit TU) {
IndexTranslationUnitInfo ITUI = { idxAction, client_data, index_callbacks,
index_callbacks_size, index_options, TU,
0 };
if (getenv("LIBCLANG_NOTHREADS")) {
clang_indexTranslationUnit_Impl(&ITUI);
return ITUI.result;
}
llvm::CrashRecoveryContext CRC;
if (!RunSafely(CRC, clang_indexTranslationUnit_Impl, &ITUI)) {
fprintf(stderr, "libclang: crash detected during indexing TU\n");
return 1;
}
return ITUI.result;
}
void clang_indexLoc_getFileLocation(CXIdxLoc location,
CXIdxClientFile *indexFile,
CXFile *file,
unsigned *line,
unsigned *column,
unsigned *offset) {
if (indexFile) *indexFile = 0;
if (file) *file = 0;
if (line) *line = 0;
if (column) *column = 0;
if (offset) *offset = 0;
SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data);
if (!location.ptr_data[0] || Loc.isInvalid())
return;
IndexingContext &IndexCtx =
*static_cast<IndexingContext*>(location.ptr_data[0]);
IndexCtx.translateLoc(Loc, indexFile, file, line, column, offset);
}
CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc location) {
SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data);
if (!location.ptr_data[0] || Loc.isInvalid())
return clang_getNullLocation();
IndexingContext &IndexCtx =
*static_cast<IndexingContext*>(location.ptr_data[0]);
return cxloc::translateSourceLocation(IndexCtx.getASTContext(), Loc);
}
} // end: extern "C"
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