clang  13.0.0git
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/LangStandard.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/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/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/InMemoryModuleCache.h"
#include "clang/Serialization/ModuleFile.h"
#include "clang/Serialization/PCHContainerOperations.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/ScopeExit.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/Bitstream/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/FileUtilities.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Timer.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <atomic>
#include <cassert>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <memory>
#include <mutex>
#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, llvm::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 uint64_t 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 bool isInMainFile (const clang::Diagnostic &D)
 
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, unsignedmakeStandaloneRange (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< unsignedActiveASTUnitObjects
 Tracks the number of ASTUnit objects that are currently active. More...
 

Typedef Documentation

◆ SLocRemap

Definition at line 2327 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 870 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 893 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 1944 of file ASTUnit.cpp.

◆ checkAndRemoveNonDriverDiags()

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

Definition at line 1068 of file ASTUnit.cpp.

References isNonDriverDiag().

◆ checkAndSanitizeDiags()

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

Definition at line 1076 of file ASTUnit.cpp.

References SM.

◆ getBufferForFileHandlingRemapping()

static std::unique_ptr<llvm::MemoryBuffer> getBufferForFileHandlingRemapping ( const CompilerInvocation Invocation,
llvm::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 159 of file ASTUnit.cpp.

References clang::CompilerInvocationBase::getPreprocessorOpts(), string(), and valueOrNull().

◆ getDeclShowContexts()

static uint64_t 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 287 of file ASTUnit.cpp.

References clang::NamedDecl::getUnderlyingDecl().

◆ isInMainFile()

static bool isInMainFile ( const clang::Diagnostic D)
static

◆ isNonDriverDiag()

static bool isNonDriverDiag ( const StoredDiagnostic StoredDiag)
static

◆ makeStandaloneDiagnostic()

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

◆ 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 149 of file ASTUnit.cpp.

◆ serializeUnit()

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

Definition at line 2298 of file ASTUnit.cpp.

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 142 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 240 of file ASTUnit.cpp.

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

◆ 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 235 of file ASTUnit.cpp.