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//===--- ASTWriter.h - AST File Writer --------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the ASTWriter class, which writes an AST file
// containing a serialized representation of a translation unit.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_FRONTEND_AST_WRITER_H
#define LLVM_CLANG_FRONTEND_AST_WRITER_H
#include "clang/AST/Decl.h"
#include "clang/AST/DeclarationName.h"
#include "clang/AST/TemplateBase.h"
#include "clang/AST/ASTMutationListener.h"
#include "clang/Serialization/ASTBitCodes.h"
#include "clang/Serialization/ASTDeserializationListener.h"
#include "clang/Sema/SemaConsumer.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/Bitcode/BitstreamWriter.h"
#include <map>
#include <queue>
#include <vector>
namespace llvm {
class APFloat;
class APInt;
class BitstreamWriter;
}
namespace clang {
class ASTContext;
class NestedNameSpecifier;
class CXXBaseSpecifier;
class CXXCtorInitializer;
class FPOptions;
class HeaderSearch;
class IdentifierResolver;
class MacroDefinition;
class MemorizeStatCalls;
class OpaqueValueExpr;
class OpenCLOptions;
class ASTReader;
class Module;
class PreprocessedEntity;
class PreprocessingRecord;
class Preprocessor;
class Sema;
class SourceManager;
class SwitchCase;
class TargetInfo;
class VersionTuple;
namespace SrcMgr { class SLocEntry; }
/// \brief Writes an AST file containing the contents of a translation unit.
///
/// The ASTWriter class produces a bitstream containing the serialized
/// representation of a given abstract syntax tree and its supporting
/// data structures. This bitstream can be de-serialized via an
/// instance of the ASTReader class.
class ASTWriter : public ASTDeserializationListener,
public ASTMutationListener {
public:
typedef SmallVector<uint64_t, 64> RecordData;
typedef SmallVectorImpl<uint64_t> RecordDataImpl;
friend class ASTDeclWriter;
friend class ASTStmtWriter;
private:
/// \brief Map that provides the ID numbers of each type within the
/// output stream, plus those deserialized from a chained PCH.
///
/// The ID numbers of types are consecutive (in order of discovery)
/// and start at 1. 0 is reserved for NULL. When types are actually
/// stored in the stream, the ID number is shifted by 2 bits to
/// allow for the const/volatile qualifiers.
///
/// Keys in the map never have const/volatile qualifiers.
typedef llvm::DenseMap<QualType, serialization::TypeIdx,
serialization::UnsafeQualTypeDenseMapInfo>
TypeIdxMap;
/// \brief The bitstream writer used to emit this precompiled header.
llvm::BitstreamWriter &Stream;
/// \brief The ASTContext we're writing.
ASTContext *Context;
/// \brief The preprocessor we're writing.
Preprocessor *PP;
/// \brief The reader of existing AST files, if we're chaining.
ASTReader *Chain;
/// \brief The module we're currently writing, if any.
Module *WritingModule;
/// \brief Indicates when the AST writing is actively performing
/// serialization, rather than just queueing updates.
bool WritingAST;
/// \brief Indicates that the AST contained compiler errors.
bool ASTHasCompilerErrors;
/// \brief Stores a declaration or a type to be written to the AST file.
class DeclOrType {
public:
DeclOrType(Decl *D) : Stored(D), IsType(false) { }
DeclOrType(QualType T) : Stored(T.getAsOpaquePtr()), IsType(true) { }
bool isType() const { return IsType; }
bool isDecl() const { return !IsType; }
QualType getType() const {
assert(isType() && "Not a type!");
return QualType::getFromOpaquePtr(Stored);
}
Decl *getDecl() const {
assert(isDecl() && "Not a decl!");
return static_cast<Decl *>(Stored);
}
private:
void *Stored;
bool IsType;
};
/// \brief The declarations and types to emit.
std::queue<DeclOrType> DeclTypesToEmit;
/// \brief The first ID number we can use for our own declarations.
serialization::DeclID FirstDeclID;
/// \brief The decl ID that will be assigned to the next new decl.
serialization::DeclID NextDeclID;
/// \brief Map that provides the ID numbers of each declaration within
/// the output stream, as well as those deserialized from a chained PCH.
///
/// The ID numbers of declarations are consecutive (in order of
/// discovery) and start at 2. 1 is reserved for the translation
/// unit, while 0 is reserved for NULL.
llvm::DenseMap<const Decl *, serialization::DeclID> DeclIDs;
/// \brief Offset of each declaration in the bitstream, indexed by
/// the declaration's ID.
std::vector<serialization::DeclOffset> DeclOffsets;
/// \brief Sorted (by file offset) vector of pairs of file offset/DeclID.
typedef SmallVector<std::pair<unsigned, serialization::DeclID>, 64>
LocDeclIDsTy;
struct DeclIDInFileInfo {
LocDeclIDsTy DeclIDs;
/// \brief Set when the DeclIDs vectors from all files are joined, this
/// indicates the index that this particular vector has in the global one.
unsigned FirstDeclIndex;
};
typedef llvm::DenseMap<const SrcMgr::SLocEntry *,
DeclIDInFileInfo *> FileDeclIDsTy;
/// \brief Map from file SLocEntries to info about the file-level declarations
/// that it contains.
FileDeclIDsTy FileDeclIDs;
void associateDeclWithFile(const Decl *D, serialization::DeclID);
/// \brief The first ID number we can use for our own types.
serialization::TypeID FirstTypeID;
/// \brief The type ID that will be assigned to the next new type.
serialization::TypeID NextTypeID;
/// \brief Map that provides the ID numbers of each type within the
/// output stream, plus those deserialized from a chained PCH.
///
/// The ID numbers of types are consecutive (in order of discovery)
/// and start at 1. 0 is reserved for NULL. When types are actually
/// stored in the stream, the ID number is shifted by 2 bits to
/// allow for the const/volatile qualifiers.
///
/// Keys in the map never have const/volatile qualifiers.
TypeIdxMap TypeIdxs;
/// \brief Offset of each type in the bitstream, indexed by
/// the type's ID.
std::vector<uint32_t> TypeOffsets;
/// \brief The first ID number we can use for our own identifiers.
serialization::IdentID FirstIdentID;
/// \brief The identifier ID that will be assigned to the next new identifier.
serialization::IdentID NextIdentID;
/// \brief Map that provides the ID numbers of each identifier in
/// the output stream.
///
/// The ID numbers for identifiers are consecutive (in order of
/// discovery), starting at 1. An ID of zero refers to a NULL
/// IdentifierInfo.
llvm::DenseMap<const IdentifierInfo *, serialization::IdentID> IdentifierIDs;
/// @name FlushStmt Caches
/// @{
/// \brief Set of parent Stmts for the currently serializing sub stmt.
llvm::DenseSet<Stmt *> ParentStmts;
/// \brief Offsets of sub stmts already serialized. The offset points
/// just after the stmt record.
llvm::DenseMap<Stmt *, uint64_t> SubStmtEntries;
/// @}
/// \brief Offsets of each of the identifier IDs into the identifier
/// table.
std::vector<uint32_t> IdentifierOffsets;
/// \brief The first ID number we can use for our own submodules.
serialization::SubmoduleID FirstSubmoduleID;
/// \brief The submodule ID that will be assigned to the next new submodule.
serialization::SubmoduleID NextSubmoduleID;
/// \brief The first ID number we can use for our own selectors.
serialization::SelectorID FirstSelectorID;
/// \brief The selector ID that will be assigned to the next new selector.
serialization::SelectorID NextSelectorID;
/// \brief Map that provides the ID numbers of each Selector.
llvm::DenseMap<Selector, serialization::SelectorID> SelectorIDs;
/// \brief Offset of each selector within the method pool/selector
/// table, indexed by the Selector ID (-1).
std::vector<uint32_t> SelectorOffsets;
/// \brief Offsets of each of the macro identifiers into the
/// bitstream.
///
/// For each identifier that is associated with a macro, this map
/// provides the offset into the bitstream where that macro is
/// defined.
llvm::DenseMap<const IdentifierInfo *, uint64_t> MacroOffsets;
/// \brief The set of identifiers that had macro definitions at some point.
std::vector<const IdentifierInfo *> DeserializedMacroNames;
/// \brief Mapping from macro definitions (as they occur in the preprocessing
/// record) to the macro IDs.
llvm::DenseMap<const MacroDefinition *, serialization::PreprocessedEntityID>
MacroDefinitions;
typedef SmallVector<uint64_t, 2> UpdateRecord;
typedef llvm::DenseMap<const Decl *, UpdateRecord> DeclUpdateMap;
/// \brief Mapping from declarations that came from a chained PCH to the
/// record containing modifications to them.
DeclUpdateMap DeclUpdates;
typedef llvm::DenseMap<Decl *, Decl *> FirstLatestDeclMap;
/// \brief Map of first declarations from a chained PCH that point to the
/// most recent declarations in another PCH.
FirstLatestDeclMap FirstLatestDecls;
/// \brief Declarations encountered that might be external
/// definitions.
///
/// We keep track of external definitions (as well as tentative
/// definitions) as we are emitting declarations to the AST
/// file. The AST file contains a separate record for these external
/// definitions, which are provided to the AST consumer by the AST
/// reader. This is behavior is required to properly cope with,
/// e.g., tentative variable definitions that occur within
/// headers. The declarations themselves are stored as declaration
/// IDs, since they will be written out to an EXTERNAL_DEFINITIONS
/// record.
SmallVector<uint64_t, 16> ExternalDefinitions;
/// \brief DeclContexts that have received extensions since their serialized
/// form.
///
/// For namespaces, when we're chaining and encountering a namespace, we check
/// if its primary namespace comes from the chain. If it does, we add the
/// primary to this set, so that we can write out lexical content updates for
/// it.
llvm::SmallPtrSet<const DeclContext *, 16> UpdatedDeclContexts;
typedef llvm::SmallPtrSet<const Decl *, 16> DeclsToRewriteTy;
/// \brief Decls that will be replaced in the current dependent AST file.
DeclsToRewriteTy DeclsToRewrite;
/// \brief The set of Objective-C class that have categories we
/// should serialize.
llvm::SetVector<ObjCInterfaceDecl *> ObjCClassesWithCategories;
struct ReplacedDeclInfo {
serialization::DeclID ID;
uint64_t Offset;
unsigned Loc;
ReplacedDeclInfo() : ID(0), Offset(0), Loc(0) {}
ReplacedDeclInfo(serialization::DeclID ID, uint64_t Offset,
SourceLocation Loc)
: ID(ID), Offset(Offset), Loc(Loc.getRawEncoding()) {}
};
/// \brief Decls that have been replaced in the current dependent AST file.
///
/// When a decl changes fundamentally after being deserialized (this shouldn't
/// happen, but the ObjC AST nodes are designed this way), it will be
/// serialized again. In this case, it is registered here, so that the reader
/// knows to read the updated version.
SmallVector<ReplacedDeclInfo, 16> ReplacedDecls;
/// \brief The set of declarations that may have redeclaration chains that
/// need to be serialized.
llvm::SetVector<Decl *, llvm::SmallVector<Decl *, 4>,
llvm::SmallPtrSet<Decl *, 4> > Redeclarations;
/// \brief Statements that we've encountered while serializing a
/// declaration or type.
SmallVector<Stmt *, 16> StmtsToEmit;
/// \brief Statements collection to use for ASTWriter::AddStmt().
/// It will point to StmtsToEmit unless it is overriden.
SmallVector<Stmt *, 16> *CollectedStmts;
/// \brief Mapping from SwitchCase statements to IDs.
std::map<SwitchCase *, unsigned> SwitchCaseIDs;
/// \brief The number of statements written to the AST file.
unsigned NumStatements;
/// \brief The number of macros written to the AST file.
unsigned NumMacros;
/// \brief The number of lexical declcontexts written to the AST
/// file.
unsigned NumLexicalDeclContexts;
/// \brief The number of visible declcontexts written to the AST
/// file.
unsigned NumVisibleDeclContexts;
/// \brief The offset of each CXXBaseSpecifier set within the AST.
SmallVector<uint32_t, 4> CXXBaseSpecifiersOffsets;
/// \brief The first ID number we can use for our own base specifiers.
serialization::CXXBaseSpecifiersID FirstCXXBaseSpecifiersID;
/// \brief The base specifiers ID that will be assigned to the next new
/// set of C++ base specifiers.
serialization::CXXBaseSpecifiersID NextCXXBaseSpecifiersID;
/// \brief A set of C++ base specifiers that is queued to be written into the
/// AST file.
struct QueuedCXXBaseSpecifiers {
QueuedCXXBaseSpecifiers() : ID(), Bases(), BasesEnd() { }
QueuedCXXBaseSpecifiers(serialization::CXXBaseSpecifiersID ID,
CXXBaseSpecifier const *Bases,
CXXBaseSpecifier const *BasesEnd)
: ID(ID), Bases(Bases), BasesEnd(BasesEnd) { }
serialization::CXXBaseSpecifiersID ID;
CXXBaseSpecifier const * Bases;
CXXBaseSpecifier const * BasesEnd;
};
/// \brief Queue of C++ base specifiers to be written to the AST file,
/// in the order they should be written.
SmallVector<QueuedCXXBaseSpecifiers, 2> CXXBaseSpecifiersToWrite;
/// \brief A mapping from each known submodule to its ID number, which will
/// be a positive integer.
llvm::DenseMap<Module *, unsigned> SubmoduleIDs;
/// \brief Retrieve or create a submodule ID for this module.
unsigned getSubmoduleID(Module *Mod);
/// \brief Write the given subexpression to the bitstream.
void WriteSubStmt(Stmt *S,
llvm::DenseMap<Stmt *, uint64_t> &SubStmtEntries,
llvm::DenseSet<Stmt *> &ParentStmts);
void WriteBlockInfoBlock();
void WriteMetadata(ASTContext &Context, StringRef isysroot,
const std::string &OutputFile);
void WriteLanguageOptions(const LangOptions &LangOpts);
void WriteStatCache(MemorizeStatCalls &StatCalls);
void WriteSourceManagerBlock(SourceManager &SourceMgr,
const Preprocessor &PP,
StringRef isysroot);
void WritePreprocessor(const Preprocessor &PP, bool IsModule);
void WriteHeaderSearch(const HeaderSearch &HS, StringRef isysroot);
void WritePreprocessorDetail(PreprocessingRecord &PPRec);
void WriteSubmodules(Module *WritingModule);
void WritePragmaDiagnosticMappings(const DiagnosticsEngine &Diag);
void WriteCXXBaseSpecifiersOffsets();
void WriteType(QualType T);
uint64_t WriteDeclContextLexicalBlock(ASTContext &Context, DeclContext *DC);
uint64_t WriteDeclContextVisibleBlock(ASTContext &Context, DeclContext *DC);
void WriteTypeDeclOffsets();
void WriteFileDeclIDsMap();
void WriteSelectors(Sema &SemaRef);
void WriteReferencedSelectorsPool(Sema &SemaRef);
void WriteIdentifierTable(Preprocessor &PP, IdentifierResolver &IdResolver,
bool IsModule);
void WriteAttributes(const AttrVec &Attrs, RecordDataImpl &Record);
void ResolveDeclUpdatesBlocks();
void WriteDeclUpdatesBlocks();
void WriteDeclReplacementsBlock();
void WriteDeclContextVisibleUpdate(const DeclContext *DC);
void WriteFPPragmaOptions(const FPOptions &Opts);
void WriteOpenCLExtensions(Sema &SemaRef);
void WriteObjCCategories();
void WriteRedeclarations();
void WriteMergedDecls();
unsigned DeclParmVarAbbrev;
unsigned DeclContextLexicalAbbrev;
unsigned DeclContextVisibleLookupAbbrev;
unsigned UpdateVisibleAbbrev;
unsigned DeclRefExprAbbrev;
unsigned CharacterLiteralAbbrev;
unsigned DeclRecordAbbrev;
unsigned IntegerLiteralAbbrev;
unsigned DeclTypedefAbbrev;
unsigned DeclVarAbbrev;
unsigned DeclFieldAbbrev;
unsigned DeclEnumAbbrev;
unsigned DeclObjCIvarAbbrev;
void WriteDeclsBlockAbbrevs();
void WriteDecl(ASTContext &Context, Decl *D);
void WriteASTCore(Sema &SemaRef, MemorizeStatCalls *StatCalls,
StringRef isysroot, const std::string &OutputFile,
Module *WritingModule);
public:
/// \brief Create a new precompiled header writer that outputs to
/// the given bitstream.
ASTWriter(llvm::BitstreamWriter &Stream);
~ASTWriter();
/// \brief Write a precompiled header for the given semantic analysis.
///
/// \param SemaRef a reference to the semantic analysis object that processed
/// the AST to be written into the precompiled header.
///
/// \param StatCalls the object that cached all of the stat() calls made while
/// searching for source files and headers.
///
/// \param WritingModule The module that we are writing. If null, we are
/// writing a precompiled header.
///
/// \param isysroot if non-empty, write a relocatable file whose headers
/// are relative to the given system root.
void WriteAST(Sema &SemaRef, MemorizeStatCalls *StatCalls,
const std::string &OutputFile,
Module *WritingModule, StringRef isysroot,
bool hasErrors = false);
/// \brief Emit a source location.
void AddSourceLocation(SourceLocation Loc, RecordDataImpl &Record);
/// \brief Emit a source range.
void AddSourceRange(SourceRange Range, RecordDataImpl &Record);
/// \brief Emit an integral value.
void AddAPInt(const llvm::APInt &Value, RecordDataImpl &Record);
/// \brief Emit a signed integral value.
void AddAPSInt(const llvm::APSInt &Value, RecordDataImpl &Record);
/// \brief Emit a floating-point value.
void AddAPFloat(const llvm::APFloat &Value, RecordDataImpl &Record);
/// \brief Emit a reference to an identifier.
void AddIdentifierRef(const IdentifierInfo *II, RecordDataImpl &Record);
/// \brief Emit a Selector (which is a smart pointer reference).
void AddSelectorRef(Selector, RecordDataImpl &Record);
/// \brief Emit a CXXTemporary.
void AddCXXTemporary(const CXXTemporary *Temp, RecordDataImpl &Record);
/// \brief Emit a set of C++ base specifiers to the record.
void AddCXXBaseSpecifiersRef(CXXBaseSpecifier const *Bases,
CXXBaseSpecifier const *BasesEnd,
RecordDataImpl &Record);
/// \brief Get the unique number used to refer to the given selector.
serialization::SelectorID getSelectorRef(Selector Sel);
/// \brief Get the unique number used to refer to the given identifier.
serialization::IdentID getIdentifierRef(const IdentifierInfo *II);
/// \brief Retrieve the offset of the macro definition for the given
/// identifier.
///
/// The identifier must refer to a macro.
uint64_t getMacroOffset(const IdentifierInfo *II) {
assert(MacroOffsets.find(II) != MacroOffsets.end() &&
"Identifier does not name a macro");
return MacroOffsets[II];
}
/// \brief Emit a reference to a type.
void AddTypeRef(QualType T, RecordDataImpl &Record);
/// \brief Force a type to be emitted and get its ID.
serialization::TypeID GetOrCreateTypeID(QualType T);
/// \brief Determine the type ID of an already-emitted type.
serialization::TypeID getTypeID(QualType T) const;
/// \brief Force a type to be emitted and get its index.
serialization::TypeIdx GetOrCreateTypeIdx( QualType T);
/// \brief Determine the type index of an already-emitted type.
serialization::TypeIdx getTypeIdx(QualType T) const;
/// \brief Emits a reference to a declarator info.
void AddTypeSourceInfo(TypeSourceInfo *TInfo, RecordDataImpl &Record);
/// \brief Emits a type with source-location information.
void AddTypeLoc(TypeLoc TL, RecordDataImpl &Record);
/// \brief Emits a template argument location info.
void AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
const TemplateArgumentLocInfo &Arg,
RecordDataImpl &Record);
/// \brief Emits a template argument location.
void AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg,
RecordDataImpl &Record);
/// \brief Emit a reference to a declaration.
void AddDeclRef(const Decl *D, RecordDataImpl &Record);
/// \brief Force a declaration to be emitted and get its ID.
serialization::DeclID GetDeclRef(const Decl *D);
/// \brief Determine the declaration ID of an already-emitted
/// declaration.
serialization::DeclID getDeclID(const Decl *D);
/// \brief Emit a declaration name.
void AddDeclarationName(DeclarationName Name, RecordDataImpl &Record);
void AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
DeclarationName Name, RecordDataImpl &Record);
void AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo,
RecordDataImpl &Record);
void AddQualifierInfo(const QualifierInfo &Info, RecordDataImpl &Record);
/// \brief Emit a nested name specifier.
void AddNestedNameSpecifier(NestedNameSpecifier *NNS, RecordDataImpl &Record);
/// \brief Emit a nested name specifier with source-location information.
void AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS,
RecordDataImpl &Record);
/// \brief Emit a template name.
void AddTemplateName(TemplateName Name, RecordDataImpl &Record);
/// \brief Emit a template argument.
void AddTemplateArgument(const TemplateArgument &Arg, RecordDataImpl &Record);
/// \brief Emit a template parameter list.
void AddTemplateParameterList(const TemplateParameterList *TemplateParams,
RecordDataImpl &Record);
/// \brief Emit a template argument list.
void AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs,
RecordDataImpl &Record);
/// \brief Emit a UnresolvedSet structure.
void AddUnresolvedSet(const UnresolvedSetImpl &Set, RecordDataImpl &Record);
/// \brief Emit a C++ base specifier.
void AddCXXBaseSpecifier(const CXXBaseSpecifier &Base,
RecordDataImpl &Record);
/// \brief Emit a CXXCtorInitializer array.
void AddCXXCtorInitializers(
const CXXCtorInitializer * const *CtorInitializers,
unsigned NumCtorInitializers,
RecordDataImpl &Record);
void AddCXXDefinitionData(const CXXRecordDecl *D, RecordDataImpl &Record);
/// \brief Add a string to the given record.
void AddString(StringRef Str, RecordDataImpl &Record);
/// \brief Add a version tuple to the given record
void AddVersionTuple(const VersionTuple &Version, RecordDataImpl &Record);
/// \brief Mark a declaration context as needing an update.
void AddUpdatedDeclContext(const DeclContext *DC) {
UpdatedDeclContexts.insert(DC);
}
void RewriteDecl(const Decl *D) {
DeclsToRewrite.insert(D);
}
bool isRewritten(const Decl *D) const {
return DeclsToRewrite.count(D);
}
/// \brief Infer the submodule ID that contains an entity at the given
/// source location.
serialization::SubmoduleID inferSubmoduleIDFromLocation(SourceLocation Loc);
/// \brief Note that the identifier II occurs at the given offset
/// within the identifier table.
void SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset);
/// \brief Note that the selector Sel occurs at the given offset
/// within the method pool/selector table.
void SetSelectorOffset(Selector Sel, uint32_t Offset);
/// \brief Add the given statement or expression to the queue of
/// statements to emit.
///
/// This routine should be used when emitting types and declarations
/// that have expressions as part of their formulation. Once the
/// type or declaration has been written, call FlushStmts() to write
/// the corresponding statements just after the type or
/// declaration.
void AddStmt(Stmt *S) {
CollectedStmts->push_back(S);
}
/// \brief Flush all of the statements and expressions that have
/// been added to the queue via AddStmt().
void FlushStmts();
/// \brief Flush all of the C++ base specifier sets that have been added
/// via \c AddCXXBaseSpecifiersRef().
void FlushCXXBaseSpecifiers();
/// \brief Record an ID for the given switch-case statement.
unsigned RecordSwitchCaseID(SwitchCase *S);
/// \brief Retrieve the ID for the given switch-case statement.
unsigned getSwitchCaseID(SwitchCase *S);
void ClearSwitchCaseIDs();
unsigned getDeclParmVarAbbrev() const { return DeclParmVarAbbrev; }
unsigned getDeclRefExprAbbrev() const { return DeclRefExprAbbrev; }
unsigned getCharacterLiteralAbbrev() const { return CharacterLiteralAbbrev; }
unsigned getDeclRecordAbbrev() const { return DeclRecordAbbrev; }
unsigned getIntegerLiteralAbbrev() const { return IntegerLiteralAbbrev; }
unsigned getDeclTypedefAbbrev() const { return DeclTypedefAbbrev; }
unsigned getDeclVarAbbrev() const { return DeclVarAbbrev; }
unsigned getDeclFieldAbbrev() const { return DeclFieldAbbrev; }
unsigned getDeclEnumAbbrev() const { return DeclEnumAbbrev; }
unsigned getDeclObjCIvarAbbrev() const { return DeclObjCIvarAbbrev; }
bool hasChain() const { return Chain; }
// ASTDeserializationListener implementation
void ReaderInitialized(ASTReader *Reader);
void IdentifierRead(serialization::IdentID ID, IdentifierInfo *II);
void TypeRead(serialization::TypeIdx Idx, QualType T);
void SelectorRead(serialization::SelectorID ID, Selector Sel);
void MacroDefinitionRead(serialization::PreprocessedEntityID ID,
MacroDefinition *MD);
void MacroVisible(IdentifierInfo *II);
void ModuleRead(serialization::SubmoduleID ID, Module *Mod);
// ASTMutationListener implementation.
virtual void CompletedTagDefinition(const TagDecl *D);
virtual void AddedVisibleDecl(const DeclContext *DC, const Decl *D);
virtual void AddedCXXImplicitMember(const CXXRecordDecl *RD, const Decl *D);
virtual void AddedCXXTemplateSpecialization(const ClassTemplateDecl *TD,
const ClassTemplateSpecializationDecl *D);
virtual void AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
const FunctionDecl *D);
virtual void CompletedImplicitDefinition(const FunctionDecl *D);
virtual void StaticDataMemberInstantiated(const VarDecl *D);
virtual void AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
const ObjCInterfaceDecl *IFD);
virtual void AddedObjCPropertyInClassExtension(const ObjCPropertyDecl *Prop,
const ObjCPropertyDecl *OrigProp,
const ObjCCategoryDecl *ClassExt);
};
/// \brief AST and semantic-analysis consumer that generates a
/// precompiled header from the parsed source code.
class PCHGenerator : public SemaConsumer {
const Preprocessor &PP;
std::string OutputFile;
clang::Module *Module;
std::string isysroot;
raw_ostream *Out;
Sema *SemaPtr;
MemorizeStatCalls *StatCalls; // owned by the FileManager
llvm::SmallVector<char, 128> Buffer;
llvm::BitstreamWriter Stream;
ASTWriter Writer;
protected:
ASTWriter &getWriter() { return Writer; }
const ASTWriter &getWriter() const { return Writer; }
public:
PCHGenerator(const Preprocessor &PP, StringRef OutputFile,
clang::Module *Module,
StringRef isysroot, raw_ostream *Out);
~PCHGenerator();
virtual void InitializeSema(Sema &S) { SemaPtr = &S; }
virtual void HandleTranslationUnit(ASTContext &Ctx);
virtual ASTMutationListener *GetASTMutationListener();
virtual ASTDeserializationListener *GetASTDeserializationListener();
};
} // end namespace clang
#endif