clang  8.0.0svn
Classes | Typedefs | Functions | Variables
ASTUnit.cpp File Reference
#include "clang/Frontend/ASTUnit.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/CommentCommandTraits.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclBase.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclGroup.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/DeclarationName.h"
#include "clang/AST/ExternalASTSource.h"
#include "clang/AST/PrettyPrinter.h"
#include "clang/AST/Type.h"
#include "clang/AST/TypeOrdering.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/IdentifierTable.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/MemoryBufferCache.h"
#include "clang/Basic/Module.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Basic/VirtualFileSystem.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/FrontendAction.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Frontend/FrontendDiagnostic.h"
#include "clang/Frontend/FrontendOptions.h"
#include "clang/Frontend/MultiplexConsumer.h"
#include "clang/Frontend/PCHContainerOperations.h"
#include "clang/Frontend/PrecompiledPreamble.h"
#include "clang/Frontend/Utils.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/HeaderSearchOptions.h"
#include "clang/Lex/Lexer.h"
#include "clang/Lex/PPCallbacks.h"
#include "clang/Lex/PreprocessingRecord.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "clang/Lex/Token.h"
#include "clang/Sema/CodeCompleteConsumer.h"
#include "clang/Sema/CodeCompleteOptions.h"
#include "clang/Sema/Sema.h"
#include "clang/Serialization/ASTBitCodes.h"
#include "clang/Serialization/ASTReader.h"
#include "clang/Serialization/ASTWriter.h"
#include "clang/Serialization/ContinuousRangeMap.h"
#include "clang/Serialization/Module.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/ADT/Twine.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/Bitcode/BitstreamWriter.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CrashRecoveryContext.h"
#include "llvm/Support/DJB.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/Timer.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <atomic>
#include <cassert>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <memory>
#include <string>
#include <tuple>
#include <utility>
#include <vector>

Go to the source code of this file.

Classes

struct  clang::ASTUnit::ASTWriterData
 

Typedefs

using SLocRemap = ContinuousRangeMap< unsigned, int, 2 >
 

Functions

template<class T >
static std::unique_ptr< T > valueOrNull (llvm::ErrorOr< std::unique_ptr< T >> Val)
 
template<class T >
static bool moveOnNoError (llvm::ErrorOr< T > Val, T &Output)
 
static std::unique_ptr< llvm::MemoryBuffer > getBufferForFileHandlingRemapping (const CompilerInvocation &Invocation, vfs::FileSystem *VFS, StringRef FilePath, bool isVolatile)
 Get a source buffer for MainFilePath, handling all file-to-file and file-to-buffer remappings inside Invocation. More...
 
static unsigned getDeclShowContexts (const NamedDecl *ND, const LangOptions &LangOpts, bool &IsNestedNameSpecifier)
 Determine the set of code-completion contexts in which this declaration should be shown. More...
 
static ASTUnit::StandaloneDiagnostic makeStandaloneDiagnostic (const LangOptions &LangOpts, const StoredDiagnostic &InDiag)
 
static void AddDefinedMacroToHash (const Token &MacroNameTok, unsigned &Hash)
 Add the given macro to the hash of all top-level entities. More...
 
static void AddTopLevelDeclarationToHash (Decl *D, unsigned &Hash)
 Add the given declaration to the hash of all top-level entities. More...
 
static bool isNonDriverDiag (const StoredDiagnostic &StoredDiag)
 
static void checkAndRemoveNonDriverDiags (SmallVectorImpl< StoredDiagnostic > &StoredDiags)
 
static void checkAndSanitizeDiags (SmallVectorImpl< StoredDiagnostic > &StoredDiagnostics, SourceManager &SM)
 
static std::pair< unsigned, unsigned > makeStandaloneRange (CharSourceRange Range, const SourceManager &SM, const LangOptions &LangOpts)
 
static ASTUnit::StandaloneFixIt makeStandaloneFixIt (const SourceManager &SM, const LangOptions &LangOpts, const FixItHint &InFix)
 
static void CalculateHiddenNames (const CodeCompletionContext &Context, CodeCompletionResult *Results, unsigned NumResults, ASTContext &Ctx, llvm::StringSet< llvm::BumpPtrAllocator > &HiddenNames)
 Helper function that computes which global names are hidden by the local code-completion results. More...
 
static bool serializeUnit (ASTWriter &Writer, SmallVectorImpl< char > &Buffer, Sema &S, bool hasErrors, raw_ostream &OS)
 

Variables

const unsigned DefaultPreambleRebuildInterval = 5
 After failing to build a precompiled preamble (due to errors in the source that occurs in the preamble), the number of reparses during which we'll skip even trying to precompile the preamble. More...
 
static std::atomic< unsigned > ActiveASTUnitObjects
 Tracks the number of ASTUnit objects that are currently active. More...
 

Typedef Documentation

◆ SLocRemap

using SLocRemap = ContinuousRangeMap<unsigned, int, 2>

Definition at line 2324 of file ASTUnit.cpp.

Function Documentation

◆ AddDefinedMacroToHash()

static void AddDefinedMacroToHash ( const Token MacroNameTok,
unsigned &  Hash 
)
static

Add the given macro to the hash of all top-level entities.

Definition at line 848 of file ASTUnit.cpp.

References clang::Token::getIdentifierInfo(), and clang::IdentifierInfo::getName().

◆ AddTopLevelDeclarationToHash()

static void AddTopLevelDeclarationToHash ( Decl D,
unsigned &  Hash 
)
static

Add the given declaration to the hash of all top-level entities.

Definition at line 871 of file ASTUnit.cpp.

References clang::Decl::getDeclContext(), clang::DeclContext::getLookupParent(), and clang::DeclContext::isTranslationUnit().

◆ CalculateHiddenNames()

static void CalculateHiddenNames ( const CodeCompletionContext Context,
CodeCompletionResult Results,
unsigned  NumResults,
ASTContext Ctx,
llvm::StringSet< llvm::BumpPtrAllocator > &  HiddenNames 
)
static

Helper function that computes which global names are hidden by the local code-completion results.

Definition at line 1933 of file ASTUnit.cpp.

◆ checkAndRemoveNonDriverDiags()

static void checkAndRemoveNonDriverDiags ( SmallVectorImpl< StoredDiagnostic > &  StoredDiags)
static

Definition at line 1046 of file ASTUnit.cpp.

References isNonDriverDiag().

Referenced by checkAndSanitizeDiags(), and makeStandaloneDiagnostic().

◆ checkAndSanitizeDiags()

static void checkAndSanitizeDiags ( SmallVectorImpl< StoredDiagnostic > &  StoredDiagnostics,
SourceManager SM 
)
static

◆ getBufferForFileHandlingRemapping()

static std::unique_ptr<llvm::MemoryBuffer> getBufferForFileHandlingRemapping ( const CompilerInvocation Invocation,
vfs::FileSystem VFS,
StringRef  FilePath,
bool  isVolatile 
)
static

Get a source buffer for MainFilePath, handling all file-to-file and file-to-buffer remappings inside Invocation.

Definition at line 157 of file ASTUnit.cpp.

References clang::vfs::FileSystem::getBufferForFile(), clang::CompilerInvocationBase::getPreprocessorOpts(), clang::vfs::FileSystem::status(), and valueOrNull().

Referenced by makeStandaloneDiagnostic().

◆ getDeclShowContexts()

static unsigned getDeclShowContexts ( const NamedDecl ND,
const LangOptions LangOpts,
bool IsNestedNameSpecifier 
)
static

Determine the set of code-completion contexts in which this declaration should be shown.

Definition at line 286 of file ASTUnit.cpp.

References clang::NamedDecl::getUnderlyingDecl().

◆ isNonDriverDiag()

static bool isNonDriverDiag ( const StoredDiagnostic StoredDiag)
static

◆ makeStandaloneDiagnostic()

static ASTUnit::StandaloneDiagnostic makeStandaloneDiagnostic ( const LangOptions LangOpts,
const StoredDiagnostic InDiag 
)
static

Definition at line 1235 of file ASTUnit.cpp.

References clang::BeginSourceFileFailed, clang::PrecompiledPreamble::Build(), checkAndRemoveNonDriverDiags(), clang::ComputePreambleBounds(), clang::CouldntCreateTargetInfo, clang::CouldntCreateTempFile, clang::CouldntEmitPCH, DefaultPreambleRebuildInterval, clang::ASTUnit::StandaloneDiagnostic::Filename, clang::frontend::FixIt, clang::ASTUnit::StandaloneDiagnostic::FixIts, clang::ASTUnit::getASTContext(), clang::CompilerInstance::getASTContext(), getBufferForFileHandlingRemapping(), clang::CompilerInvocationBase::getDiagnosticOpts(), clang::ASTUnit::getDiagnostics(), clang::ExternalASTSource::GetExternalDecl(), clang::ASTContext::getExternalSource(), clang::SourceManager::getFileLoc(), clang::SourceManager::getFilename(), clang::SourceManager::getFileOffset(), clang::StoredDiagnostic::getFixIts(), clang::CompilerInvocation::getFrontendOpts(), clang::StoredDiagnostic::getID(), clang::CompilerInstance::getInvocation(), clang::CompilerInvocationBase::getLangOpts(), clang::StoredDiagnostic::getLevel(), clang::StoredDiagnostic::getLocation(), clang::FullSourceLoc::getManager(), clang::StoredDiagnostic::getMessage(), clang::CompilerInstance::getModuleManager(), clang::DiagnosticsEngine::getNumWarnings(), clang::CompilerInstance::getPreprocessorPtr(), clang::StoredDiagnostic::getRanges(), clang::CompilerInstance::getTarget(), clang::CompilerInstance::hadModuleLoaderFatalFailure(), clang::CompilerInstance::hasASTContext(), clang::CompilerInstance::hasInvocation(), clang::CompilerInstance::hasPreprocessor(), clang::CompilerInstance::hasTarget(), clang::ASTUnit::StandaloneDiagnostic::ID, clang::FrontendOptions::Inputs, clang::SourceLocation::isInvalid(), clang::CompilerInvocationBase::LangOpts, clang::ASTUnit::StandaloneDiagnostic::Level, clang::ASTUnit::StandaloneDiagnostic::LocOffset, makeStandaloneFixIt(), makeStandaloneRange(), clang::ASTUnit::StandaloneDiagnostic::Message, clang::Preamble, clang::ProcessWarningOptions(), clang::ASTUnit::StandaloneDiagnostic::Ranges, clang::DiagnosticsEngine::Reset(), clang::CompilerInstance::setFileManager(), clang::DiagnosticsEngine::setNumWarnings(), clang::CompilerInstance::setSourceManager(), clang::PreambleBounds::Size, clang::FrontendOptions::SkipFunctionBodies, SM, clang::CompilerInstance::takeASTConsumer(), and clang::CompilerInstance::takeSema().

◆ makeStandaloneFixIt()

static ASTUnit::StandaloneFixIt makeStandaloneFixIt ( const SourceManager SM,
const LangOptions LangOpts,
const FixItHint InFix 
)
static

◆ makeStandaloneRange()

static std::pair<unsigned, unsigned> makeStandaloneRange ( CharSourceRange  Range,
const SourceManager SM,
const LangOptions LangOpts 
)
static

◆ moveOnNoError()

template<class T >
static bool moveOnNoError ( llvm::ErrorOr< T >  Val,
T &  Output 
)
static

Definition at line 147 of file ASTUnit.cpp.

◆ serializeUnit()

static bool serializeUnit ( ASTWriter Writer,
SmallVectorImpl< char > &  Buffer,
Sema S,
bool  hasErrors,
raw_ostream &  OS 
)
static

Definition at line 2295 of file ASTUnit.cpp.

References clang::ASTWriter::WriteAST().

Referenced by clang::ASTUnit::serialize().

◆ valueOrNull()

template<class T >
static std::unique_ptr<T> valueOrNull ( llvm::ErrorOr< std::unique_ptr< T >>  Val)
static

Definition at line 140 of file ASTUnit.cpp.

Referenced by getBufferForFileHandlingRemapping().

Variable Documentation

◆ ActiveASTUnitObjects

std::atomic<unsigned> ActiveASTUnitObjects
static

Tracks the number of ASTUnit objects that are currently active.

Used for debugging purposes only.

Definition at line 239 of file ASTUnit.cpp.

◆ DefaultPreambleRebuildInterval

const unsigned DefaultPreambleRebuildInterval = 5

After failing to build a precompiled preamble (due to errors in the source that occurs in the preamble), the number of reparses during which we'll skip even trying to precompile the preamble.

Definition at line 234 of file ASTUnit.cpp.

Referenced by makeStandaloneDiagnostic().