ASTWriter.cpp revision 20249a1af2e462dcafdd6a350f1c7967b264ff25
1f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org//===--- ASTWriter.cpp - AST File Writer ----------------------------------===// 2f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// 3f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// The LLVM Compiler Infrastructure 4f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// 5f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// This file is distributed under the University of Illinois Open Source 6f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// License. See LICENSE.TXT for details. 7f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// 8f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org//===----------------------------------------------------------------------===// 9f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// 10f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// This file defines the ASTWriter class, which writes AST files. 11f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// 12f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org//===----------------------------------------------------------------------===// 13f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 14f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Serialization/ASTWriter.h" 15f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "ASTCommon.h" 16f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Sema/Sema.h" 17f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Sema/IdentifierResolver.h" 18f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/ASTContext.h" 19f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/Decl.h" 20f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/DeclContextInternals.h" 21f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/DeclTemplate.h" 22f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/Expr.h" 23f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/ExprCXX.h" 24f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/Type.h" 25f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/TypeLocVisitor.h" 26f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Serialization/ASTReader.h" 27f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Lex/MacroInfo.h" 28f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Lex/PreprocessingRecord.h" 29f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Lex/Preprocessor.h" 30f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Lex/HeaderSearch.h" 31f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Basic/FileManager.h" 32f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Basic/OnDiskHashTable.h" 33f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Basic/SourceManager.h" 34f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Basic/SourceManagerInternals.h" 35f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Basic/TargetInfo.h" 36f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/Basic/Version.h" 37f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "llvm/ADT/APFloat.h" 38f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "llvm/ADT/APInt.h" 39f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "llvm/ADT/StringExtras.h" 40f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "llvm/Bitcode/BitstreamWriter.h" 41f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "llvm/Support/MemoryBuffer.h" 42f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "llvm/System/Path.h" 43f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include <cstdio> 44f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgusing namespace clang; 45f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgusing namespace clang::serialization; 46f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 47f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgtemplate <typename T, typename Allocator> 48f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgT *data(std::vector<T, Allocator> &v) { 49f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return v.empty() ? 0 : &v.front(); 50f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 51f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgtemplate <typename T, typename Allocator> 52f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgconst T *data(const std::vector<T, Allocator> &v) { 53f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return v.empty() ? 0 : &v.front(); 54f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 55f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 56f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org//===----------------------------------------------------------------------===// 57f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// Type serialization 58f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org//===----------------------------------------------------------------------===// 59f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 60f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgnamespace { 61f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org class ASTTypeWriter { 62f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org ASTWriter &Writer; 63f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org ASTWriter::RecordData &Record; 64f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 65f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org public: 66f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org /// \brief Type code that corresponds to the record generated. 67f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org TypeCode Code; 68f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 69f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org ASTTypeWriter(ASTWriter &Writer, ASTWriter::RecordData &Record) 70f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org : Writer(Writer), Record(Record), Code(TYPE_EXT_QUAL) { } 71f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 72f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org void VisitArrayType(const ArrayType *T); 73f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org void VisitFunctionType(const FunctionType *T); 74f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org void VisitTagType(const TagType *T); 75f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 76f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#define TYPE(Class, Base) void Visit##Class##Type(const Class##Type *T); 77f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#define ABSTRACT_TYPE(Class, Base) 78f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/TypeNodes.def" 79f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org }; 80f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 81f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 82f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitBuiltinType(const BuiltinType *T) { 83f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org assert(false && "Built-in types are never serialized"); 84f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 85f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 86f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitComplexType(const ComplexType *T) { 87f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getElementType(), Record); 88f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_COMPLEX; 89f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 90f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 91f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitPointerType(const PointerType *T) { 92f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getPointeeType(), Record); 93f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_POINTER; 94f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 95f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 96f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitBlockPointerType(const BlockPointerType *T) { 97f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getPointeeType(), Record); 98f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_BLOCK_POINTER; 99f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 100f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 101f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitLValueReferenceType(const LValueReferenceType *T) { 102f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getPointeeType(), Record); 103f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_LVALUE_REFERENCE; 104f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 105f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 106f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitRValueReferenceType(const RValueReferenceType *T) { 107f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getPointeeType(), Record); 108f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_RVALUE_REFERENCE; 109f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 110f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 111f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitMemberPointerType(const MemberPointerType *T) { 112f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getPointeeType(), Record); 113f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(QualType(T->getClass(), 0), Record); 114f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_MEMBER_POINTER; 115f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 116f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 117f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitArrayType(const ArrayType *T) { 118f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getElementType(), Record); 119f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getSizeModifier()); // FIXME: stable values 120f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getIndexTypeCVRQualifiers()); // FIXME: stable values 121f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 122f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 123f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitConstantArrayType(const ConstantArrayType *T) { 124f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitArrayType(T); 125f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddAPInt(T->getSize(), Record); 126f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_CONSTANT_ARRAY; 127f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 128f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 129f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitIncompleteArrayType(const IncompleteArrayType *T) { 130f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitArrayType(T); 131f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_INCOMPLETE_ARRAY; 132f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 133f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 134f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitVariableArrayType(const VariableArrayType *T) { 135f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitArrayType(T); 136f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddSourceLocation(T->getLBracketLoc(), Record); 137f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddSourceLocation(T->getRBracketLoc(), Record); 138f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddStmt(T->getSizeExpr()); 139f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_VARIABLE_ARRAY; 140f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 141f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 142f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitVectorType(const VectorType *T) { 143f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getElementType(), Record); 144f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getNumElements()); 145f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getAltiVecSpecific()); 146f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_VECTOR; 147f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 148f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 149f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitExtVectorType(const ExtVectorType *T) { 150f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitVectorType(T); 151f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_EXT_VECTOR; 152f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 153f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 154f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitFunctionType(const FunctionType *T) { 155f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getResultType(), Record); 156f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org FunctionType::ExtInfo C = T->getExtInfo(); 157f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(C.getNoReturn()); 158f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(C.getRegParm()); 159f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // FIXME: need to stabilize encoding of calling convention... 160f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(C.getCC()); 161f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 162f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 163f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) { 164f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitFunctionType(T); 165f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_FUNCTION_NO_PROTO; 166f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 167f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 168f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitFunctionProtoType(const FunctionProtoType *T) { 169f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitFunctionType(T); 170f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getNumArgs()); 171f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org for (unsigned I = 0, N = T->getNumArgs(); I != N; ++I) 172f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getArgType(I), Record); 173f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->isVariadic()); 174f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getTypeQuals()); 175f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->hasExceptionSpec()); 176f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->hasAnyExceptionSpec()); 177f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getNumExceptions()); 178f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I) 179f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getExceptionType(I), Record); 180f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_FUNCTION_PROTO; 181f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 182f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 183f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitUnresolvedUsingType(const UnresolvedUsingType *T) { 184f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddDeclRef(T->getDecl(), Record); 185f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_UNRESOLVED_USING; 186f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 187f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 188f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitTypedefType(const TypedefType *T) { 189f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddDeclRef(T->getDecl(), Record); 190f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org assert(!T->isCanonicalUnqualified() && "Invalid typedef ?"); 191f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getCanonicalTypeInternal(), Record); 192f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_TYPEDEF; 193f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 194f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 195f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitTypeOfExprType(const TypeOfExprType *T) { 196f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddStmt(T->getUnderlyingExpr()); 197f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_TYPEOF_EXPR; 198f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 199f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 200f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitTypeOfType(const TypeOfType *T) { 201f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getUnderlyingType(), Record); 202f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_TYPEOF; 203f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 204f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 205f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitDecltypeType(const DecltypeType *T) { 206f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddStmt(T->getUnderlyingExpr()); 207f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_DECLTYPE; 208f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 209f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 210f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitTagType(const TagType *T) { 211f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->isDependentType()); 212f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddDeclRef(T->getDecl(), Record); 213f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org assert(!T->isBeingDefined() && 214f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org "Cannot serialize in the middle of a type definition"); 215f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 216f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 217f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitRecordType(const RecordType *T) { 218f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitTagType(T); 219f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_RECORD; 220f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 221f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 222f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitEnumType(const EnumType *T) { 223f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitTagType(T); 224f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_ENUM; 225f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 226f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 227f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 228f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitSubstTemplateTypeParmType( 229f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const SubstTemplateTypeParmType *T) { 230f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(QualType(T->getReplacedParameter(), 0), Record); 231f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getReplacementType(), Record); 232f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_SUBST_TEMPLATE_TYPE_PARM; 233f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 234f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 235f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 236f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitTemplateSpecializationType( 237f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const TemplateSpecializationType *T) { 238f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->isDependentType()); 239f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTemplateName(T->getTemplateName(), Record); 240f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getNumArgs()); 241f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org for (TemplateSpecializationType::iterator ArgI = T->begin(), ArgE = T->end(); 242f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org ArgI != ArgE; ++ArgI) 243f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTemplateArgument(*ArgI, Record); 244f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->isCanonicalUnqualified() ? QualType() 245f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org : T->getCanonicalTypeInternal(), 246f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record); 247f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_TEMPLATE_SPECIALIZATION; 248f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 249f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 250f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 251f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitDependentSizedArrayType(const DependentSizedArrayType *T) { 252f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org VisitArrayType(T); 253f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddStmt(T->getSizeExpr()); 254f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddSourceRange(T->getBracketsRange(), Record); 255f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_DEPENDENT_SIZED_ARRAY; 256f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 257f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 258f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 259f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitDependentSizedExtVectorType( 260f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const DependentSizedExtVectorType *T) { 261f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // FIXME: Serialize this type (C++ only) 262f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org assert(false && "Cannot serialize dependent sized extended vector types"); 263f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 264f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 265f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 266f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitTemplateTypeParmType(const TemplateTypeParmType *T) { 267f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getDepth()); 268f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getIndex()); 269f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->isParameterPack()); 270f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddIdentifierRef(T->getName(), Record); 271f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_TEMPLATE_TYPE_PARM; 272f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 273f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 274f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 275f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitDependentNameType(const DependentNameType *T) { 276f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getKeyword()); 277f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddNestedNameSpecifier(T->getQualifier(), Record); 278f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddIdentifierRef(T->getIdentifier(), Record); 279f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->isCanonicalUnqualified() ? QualType() 280f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org : T->getCanonicalTypeInternal(), 281f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record); 282f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_DEPENDENT_NAME; 283f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 284f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 285f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 286f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitDependentTemplateSpecializationType( 287f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const DependentTemplateSpecializationType *T) { 288f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getKeyword()); 289f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddNestedNameSpecifier(T->getQualifier(), Record); 290f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddIdentifierRef(T->getIdentifier(), Record); 291f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getNumArgs()); 292f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org for (DependentTemplateSpecializationType::iterator 293f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org I = T->begin(), E = T->end(); I != E; ++I) 294f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTemplateArgument(*I, Record); 295f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION; 296f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 297f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 298f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitElaboratedType(const ElaboratedType *T) { 299f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getKeyword()); 300f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddNestedNameSpecifier(T->getQualifier(), Record); 301f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getNamedType(), Record); 302f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_ELABORATED; 303f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 304f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 305f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitInjectedClassNameType(const InjectedClassNameType *T) { 306f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddDeclRef(T->getDecl(), Record); 307f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getInjectedSpecializationType(), Record); 308f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_INJECTED_CLASS_NAME; 309f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 310f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 311f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitObjCInterfaceType(const ObjCInterfaceType *T) { 312f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddDeclRef(T->getDecl(), Record); 313f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_OBJC_INTERFACE; 314f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 315f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 316f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid ASTTypeWriter::VisitObjCObjectType(const ObjCObjectType *T) { 317f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getBaseType(), Record); 318f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(T->getNumProtocols()); 319f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org for (ObjCObjectType::qual_iterator I = T->qual_begin(), 320f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org E = T->qual_end(); I != E; ++I) 321f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddDeclRef(*I, Record); 322f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_OBJC_OBJECT; 323f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 324f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 325f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid 326f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgASTTypeWriter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) { 327f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddTypeRef(T->getPointeeType(), Record); 328f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Code = TYPE_OBJC_OBJECT_POINTER; 329f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 330f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 331f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgnamespace { 332f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 333f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgclass TypeLocWriter : public TypeLocVisitor<TypeLocWriter> { 334f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org ASTWriter &Writer; 335f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org ASTWriter::RecordData &Record; 336f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 337f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgpublic: 338f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org TypeLocWriter(ASTWriter &Writer, ASTWriter::RecordData &Record) 339f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org : Writer(Writer), Record(Record) { } 340f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 341f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#define ABSTRACT_TYPELOC(CLASS, PARENT) 342f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#define TYPELOC(CLASS, PARENT) \ 343f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc); 344f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include "clang/AST/TypeLocNodes.def" 345f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 346f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org void VisitArrayTypeLoc(ArrayTypeLoc TyLoc); 347f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org void VisitFunctionTypeLoc(FunctionTypeLoc TyLoc); 348f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org}; 349f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 350f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 351f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 352f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid TypeLocWriter::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 353f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // nothing to do 354f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 355f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid TypeLocWriter::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 356f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddSourceLocation(TL.getBuiltinLoc(), Record); 357f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (TL.needsExtraLocalData()) { 358f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(TL.getWrittenTypeSpec()); 359f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(TL.getWrittenSignSpec()); 360f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(TL.getWrittenWidthSpec()); 361f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Record.push_back(TL.hasModeAttr()); 362f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 363f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 364f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid TypeLocWriter::VisitComplexTypeLoc(ComplexTypeLoc TL) { 365f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddSourceLocation(TL.getNameLoc(), Record); 366f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 367f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgvoid TypeLocWriter::VisitPointerTypeLoc(PointerTypeLoc TL) { 368f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Writer.AddSourceLocation(TL.getStarLoc(), Record); 369} 370void TypeLocWriter::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 371 Writer.AddSourceLocation(TL.getCaretLoc(), Record); 372} 373void TypeLocWriter::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 374 Writer.AddSourceLocation(TL.getAmpLoc(), Record); 375} 376void TypeLocWriter::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 377 Writer.AddSourceLocation(TL.getAmpAmpLoc(), Record); 378} 379void TypeLocWriter::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 380 Writer.AddSourceLocation(TL.getStarLoc(), Record); 381} 382void TypeLocWriter::VisitArrayTypeLoc(ArrayTypeLoc TL) { 383 Writer.AddSourceLocation(TL.getLBracketLoc(), Record); 384 Writer.AddSourceLocation(TL.getRBracketLoc(), Record); 385 Record.push_back(TL.getSizeExpr() ? 1 : 0); 386 if (TL.getSizeExpr()) 387 Writer.AddStmt(TL.getSizeExpr()); 388} 389void TypeLocWriter::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) { 390 VisitArrayTypeLoc(TL); 391} 392void TypeLocWriter::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) { 393 VisitArrayTypeLoc(TL); 394} 395void TypeLocWriter::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) { 396 VisitArrayTypeLoc(TL); 397} 398void TypeLocWriter::VisitDependentSizedArrayTypeLoc( 399 DependentSizedArrayTypeLoc TL) { 400 VisitArrayTypeLoc(TL); 401} 402void TypeLocWriter::VisitDependentSizedExtVectorTypeLoc( 403 DependentSizedExtVectorTypeLoc TL) { 404 Writer.AddSourceLocation(TL.getNameLoc(), Record); 405} 406void TypeLocWriter::VisitVectorTypeLoc(VectorTypeLoc TL) { 407 Writer.AddSourceLocation(TL.getNameLoc(), Record); 408} 409void TypeLocWriter::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) { 410 Writer.AddSourceLocation(TL.getNameLoc(), Record); 411} 412void TypeLocWriter::VisitFunctionTypeLoc(FunctionTypeLoc TL) { 413 Writer.AddSourceLocation(TL.getLParenLoc(), Record); 414 Writer.AddSourceLocation(TL.getRParenLoc(), Record); 415 Record.push_back(TL.getTrailingReturn()); 416 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) 417 Writer.AddDeclRef(TL.getArg(i), Record); 418} 419void TypeLocWriter::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) { 420 VisitFunctionTypeLoc(TL); 421} 422void TypeLocWriter::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) { 423 VisitFunctionTypeLoc(TL); 424} 425void TypeLocWriter::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) { 426 Writer.AddSourceLocation(TL.getNameLoc(), Record); 427} 428void TypeLocWriter::VisitTypedefTypeLoc(TypedefTypeLoc TL) { 429 Writer.AddSourceLocation(TL.getNameLoc(), Record); 430} 431void TypeLocWriter::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 432 Writer.AddSourceLocation(TL.getTypeofLoc(), Record); 433 Writer.AddSourceLocation(TL.getLParenLoc(), Record); 434 Writer.AddSourceLocation(TL.getRParenLoc(), Record); 435} 436void TypeLocWriter::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 437 Writer.AddSourceLocation(TL.getTypeofLoc(), Record); 438 Writer.AddSourceLocation(TL.getLParenLoc(), Record); 439 Writer.AddSourceLocation(TL.getRParenLoc(), Record); 440 Writer.AddTypeSourceInfo(TL.getUnderlyingTInfo(), Record); 441} 442void TypeLocWriter::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) { 443 Writer.AddSourceLocation(TL.getNameLoc(), Record); 444} 445void TypeLocWriter::VisitRecordTypeLoc(RecordTypeLoc TL) { 446 Writer.AddSourceLocation(TL.getNameLoc(), Record); 447} 448void TypeLocWriter::VisitEnumTypeLoc(EnumTypeLoc TL) { 449 Writer.AddSourceLocation(TL.getNameLoc(), Record); 450} 451void TypeLocWriter::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) { 452 Writer.AddSourceLocation(TL.getNameLoc(), Record); 453} 454void TypeLocWriter::VisitSubstTemplateTypeParmTypeLoc( 455 SubstTemplateTypeParmTypeLoc TL) { 456 Writer.AddSourceLocation(TL.getNameLoc(), Record); 457} 458void TypeLocWriter::VisitTemplateSpecializationTypeLoc( 459 TemplateSpecializationTypeLoc TL) { 460 Writer.AddSourceLocation(TL.getTemplateNameLoc(), Record); 461 Writer.AddSourceLocation(TL.getLAngleLoc(), Record); 462 Writer.AddSourceLocation(TL.getRAngleLoc(), Record); 463 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) 464 Writer.AddTemplateArgumentLocInfo(TL.getArgLoc(i).getArgument().getKind(), 465 TL.getArgLoc(i).getLocInfo(), Record); 466} 467void TypeLocWriter::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 468 Writer.AddSourceLocation(TL.getKeywordLoc(), Record); 469 Writer.AddSourceRange(TL.getQualifierRange(), Record); 470} 471void TypeLocWriter::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) { 472 Writer.AddSourceLocation(TL.getNameLoc(), Record); 473} 474void TypeLocWriter::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 475 Writer.AddSourceLocation(TL.getKeywordLoc(), Record); 476 Writer.AddSourceRange(TL.getQualifierRange(), Record); 477 Writer.AddSourceLocation(TL.getNameLoc(), Record); 478} 479void TypeLocWriter::VisitDependentTemplateSpecializationTypeLoc( 480 DependentTemplateSpecializationTypeLoc TL) { 481 Writer.AddSourceLocation(TL.getKeywordLoc(), Record); 482 Writer.AddSourceRange(TL.getQualifierRange(), Record); 483 Writer.AddSourceLocation(TL.getNameLoc(), Record); 484 Writer.AddSourceLocation(TL.getLAngleLoc(), Record); 485 Writer.AddSourceLocation(TL.getRAngleLoc(), Record); 486 for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I) 487 Writer.AddTemplateArgumentLocInfo(TL.getArgLoc(I).getArgument().getKind(), 488 TL.getArgLoc(I).getLocInfo(), Record); 489} 490void TypeLocWriter::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 491 Writer.AddSourceLocation(TL.getNameLoc(), Record); 492} 493void TypeLocWriter::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 494 Record.push_back(TL.hasBaseTypeAsWritten()); 495 Writer.AddSourceLocation(TL.getLAngleLoc(), Record); 496 Writer.AddSourceLocation(TL.getRAngleLoc(), Record); 497 for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i) 498 Writer.AddSourceLocation(TL.getProtocolLoc(i), Record); 499} 500void TypeLocWriter::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 501 Writer.AddSourceLocation(TL.getStarLoc(), Record); 502} 503 504//===----------------------------------------------------------------------===// 505// ASTWriter Implementation 506//===----------------------------------------------------------------------===// 507 508static void EmitBlockID(unsigned ID, const char *Name, 509 llvm::BitstreamWriter &Stream, 510 ASTWriter::RecordData &Record) { 511 Record.clear(); 512 Record.push_back(ID); 513 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETBID, Record); 514 515 // Emit the block name if present. 516 if (Name == 0 || Name[0] == 0) return; 517 Record.clear(); 518 while (*Name) 519 Record.push_back(*Name++); 520 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_BLOCKNAME, Record); 521} 522 523static void EmitRecordID(unsigned ID, const char *Name, 524 llvm::BitstreamWriter &Stream, 525 ASTWriter::RecordData &Record) { 526 Record.clear(); 527 Record.push_back(ID); 528 while (*Name) 529 Record.push_back(*Name++); 530 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETRECORDNAME, Record); 531} 532 533static void AddStmtsExprs(llvm::BitstreamWriter &Stream, 534 ASTWriter::RecordData &Record) { 535#define RECORD(X) EmitRecordID(X, #X, Stream, Record) 536 RECORD(STMT_STOP); 537 RECORD(STMT_NULL_PTR); 538 RECORD(STMT_NULL); 539 RECORD(STMT_COMPOUND); 540 RECORD(STMT_CASE); 541 RECORD(STMT_DEFAULT); 542 RECORD(STMT_LABEL); 543 RECORD(STMT_IF); 544 RECORD(STMT_SWITCH); 545 RECORD(STMT_WHILE); 546 RECORD(STMT_DO); 547 RECORD(STMT_FOR); 548 RECORD(STMT_GOTO); 549 RECORD(STMT_INDIRECT_GOTO); 550 RECORD(STMT_CONTINUE); 551 RECORD(STMT_BREAK); 552 RECORD(STMT_RETURN); 553 RECORD(STMT_DECL); 554 RECORD(STMT_ASM); 555 RECORD(EXPR_PREDEFINED); 556 RECORD(EXPR_DECL_REF); 557 RECORD(EXPR_INTEGER_LITERAL); 558 RECORD(EXPR_FLOATING_LITERAL); 559 RECORD(EXPR_IMAGINARY_LITERAL); 560 RECORD(EXPR_STRING_LITERAL); 561 RECORD(EXPR_CHARACTER_LITERAL); 562 RECORD(EXPR_PAREN); 563 RECORD(EXPR_UNARY_OPERATOR); 564 RECORD(EXPR_SIZEOF_ALIGN_OF); 565 RECORD(EXPR_ARRAY_SUBSCRIPT); 566 RECORD(EXPR_CALL); 567 RECORD(EXPR_MEMBER); 568 RECORD(EXPR_BINARY_OPERATOR); 569 RECORD(EXPR_COMPOUND_ASSIGN_OPERATOR); 570 RECORD(EXPR_CONDITIONAL_OPERATOR); 571 RECORD(EXPR_IMPLICIT_CAST); 572 RECORD(EXPR_CSTYLE_CAST); 573 RECORD(EXPR_COMPOUND_LITERAL); 574 RECORD(EXPR_EXT_VECTOR_ELEMENT); 575 RECORD(EXPR_INIT_LIST); 576 RECORD(EXPR_DESIGNATED_INIT); 577 RECORD(EXPR_IMPLICIT_VALUE_INIT); 578 RECORD(EXPR_VA_ARG); 579 RECORD(EXPR_ADDR_LABEL); 580 RECORD(EXPR_STMT); 581 RECORD(EXPR_TYPES_COMPATIBLE); 582 RECORD(EXPR_CHOOSE); 583 RECORD(EXPR_GNU_NULL); 584 RECORD(EXPR_SHUFFLE_VECTOR); 585 RECORD(EXPR_BLOCK); 586 RECORD(EXPR_BLOCK_DECL_REF); 587 RECORD(EXPR_OBJC_STRING_LITERAL); 588 RECORD(EXPR_OBJC_ENCODE); 589 RECORD(EXPR_OBJC_SELECTOR_EXPR); 590 RECORD(EXPR_OBJC_PROTOCOL_EXPR); 591 RECORD(EXPR_OBJC_IVAR_REF_EXPR); 592 RECORD(EXPR_OBJC_PROPERTY_REF_EXPR); 593 RECORD(EXPR_OBJC_KVC_REF_EXPR); 594 RECORD(EXPR_OBJC_MESSAGE_EXPR); 595 RECORD(STMT_OBJC_FOR_COLLECTION); 596 RECORD(STMT_OBJC_CATCH); 597 RECORD(STMT_OBJC_FINALLY); 598 RECORD(STMT_OBJC_AT_TRY); 599 RECORD(STMT_OBJC_AT_SYNCHRONIZED); 600 RECORD(STMT_OBJC_AT_THROW); 601 RECORD(EXPR_CXX_OPERATOR_CALL); 602 RECORD(EXPR_CXX_CONSTRUCT); 603 RECORD(EXPR_CXX_STATIC_CAST); 604 RECORD(EXPR_CXX_DYNAMIC_CAST); 605 RECORD(EXPR_CXX_REINTERPRET_CAST); 606 RECORD(EXPR_CXX_CONST_CAST); 607 RECORD(EXPR_CXX_FUNCTIONAL_CAST); 608 RECORD(EXPR_CXX_BOOL_LITERAL); 609 RECORD(EXPR_CXX_NULL_PTR_LITERAL); 610#undef RECORD 611} 612 613void ASTWriter::WriteBlockInfoBlock() { 614 RecordData Record; 615 Stream.EnterSubblock(llvm::bitc::BLOCKINFO_BLOCK_ID, 3); 616 617#define BLOCK(X) EmitBlockID(X ## _ID, #X, Stream, Record) 618#define RECORD(X) EmitRecordID(X, #X, Stream, Record) 619 620 // AST Top-Level Block. 621 BLOCK(AST_BLOCK); 622 RECORD(ORIGINAL_FILE_NAME); 623 RECORD(TYPE_OFFSET); 624 RECORD(DECL_OFFSET); 625 RECORD(LANGUAGE_OPTIONS); 626 RECORD(METADATA); 627 RECORD(IDENTIFIER_OFFSET); 628 RECORD(IDENTIFIER_TABLE); 629 RECORD(EXTERNAL_DEFINITIONS); 630 RECORD(SPECIAL_TYPES); 631 RECORD(STATISTICS); 632 RECORD(TENTATIVE_DEFINITIONS); 633 RECORD(UNUSED_FILESCOPED_DECLS); 634 RECORD(LOCALLY_SCOPED_EXTERNAL_DECLS); 635 RECORD(SELECTOR_OFFSETS); 636 RECORD(METHOD_POOL); 637 RECORD(PP_COUNTER_VALUE); 638 RECORD(SOURCE_LOCATION_OFFSETS); 639 RECORD(SOURCE_LOCATION_PRELOADS); 640 RECORD(STAT_CACHE); 641 RECORD(EXT_VECTOR_DECLS); 642 RECORD(VERSION_CONTROL_BRANCH_REVISION); 643 RECORD(MACRO_DEFINITION_OFFSETS); 644 RECORD(CHAINED_METADATA); 645 RECORD(REFERENCED_SELECTOR_POOL); 646 647 // SourceManager Block. 648 BLOCK(SOURCE_MANAGER_BLOCK); 649 RECORD(SM_SLOC_FILE_ENTRY); 650 RECORD(SM_SLOC_BUFFER_ENTRY); 651 RECORD(SM_SLOC_BUFFER_BLOB); 652 RECORD(SM_SLOC_INSTANTIATION_ENTRY); 653 RECORD(SM_LINE_TABLE); 654 655 // Preprocessor Block. 656 BLOCK(PREPROCESSOR_BLOCK); 657 RECORD(PP_MACRO_OBJECT_LIKE); 658 RECORD(PP_MACRO_FUNCTION_LIKE); 659 RECORD(PP_TOKEN); 660 RECORD(PP_MACRO_INSTANTIATION); 661 RECORD(PP_MACRO_DEFINITION); 662 663 // Decls and Types block. 664 BLOCK(DECLTYPES_BLOCK); 665 RECORD(TYPE_EXT_QUAL); 666 RECORD(TYPE_COMPLEX); 667 RECORD(TYPE_POINTER); 668 RECORD(TYPE_BLOCK_POINTER); 669 RECORD(TYPE_LVALUE_REFERENCE); 670 RECORD(TYPE_RVALUE_REFERENCE); 671 RECORD(TYPE_MEMBER_POINTER); 672 RECORD(TYPE_CONSTANT_ARRAY); 673 RECORD(TYPE_INCOMPLETE_ARRAY); 674 RECORD(TYPE_VARIABLE_ARRAY); 675 RECORD(TYPE_VECTOR); 676 RECORD(TYPE_EXT_VECTOR); 677 RECORD(TYPE_FUNCTION_PROTO); 678 RECORD(TYPE_FUNCTION_NO_PROTO); 679 RECORD(TYPE_TYPEDEF); 680 RECORD(TYPE_TYPEOF_EXPR); 681 RECORD(TYPE_TYPEOF); 682 RECORD(TYPE_RECORD); 683 RECORD(TYPE_ENUM); 684 RECORD(TYPE_OBJC_INTERFACE); 685 RECORD(TYPE_OBJC_OBJECT); 686 RECORD(TYPE_OBJC_OBJECT_POINTER); 687 RECORD(DECL_TRANSLATION_UNIT); 688 RECORD(DECL_TYPEDEF); 689 RECORD(DECL_ENUM); 690 RECORD(DECL_RECORD); 691 RECORD(DECL_ENUM_CONSTANT); 692 RECORD(DECL_FUNCTION); 693 RECORD(DECL_OBJC_METHOD); 694 RECORD(DECL_OBJC_INTERFACE); 695 RECORD(DECL_OBJC_PROTOCOL); 696 RECORD(DECL_OBJC_IVAR); 697 RECORD(DECL_OBJC_AT_DEFS_FIELD); 698 RECORD(DECL_OBJC_CLASS); 699 RECORD(DECL_OBJC_FORWARD_PROTOCOL); 700 RECORD(DECL_OBJC_CATEGORY); 701 RECORD(DECL_OBJC_CATEGORY_IMPL); 702 RECORD(DECL_OBJC_IMPLEMENTATION); 703 RECORD(DECL_OBJC_COMPATIBLE_ALIAS); 704 RECORD(DECL_OBJC_PROPERTY); 705 RECORD(DECL_OBJC_PROPERTY_IMPL); 706 RECORD(DECL_FIELD); 707 RECORD(DECL_VAR); 708 RECORD(DECL_IMPLICIT_PARAM); 709 RECORD(DECL_PARM_VAR); 710 RECORD(DECL_FILE_SCOPE_ASM); 711 RECORD(DECL_BLOCK); 712 RECORD(DECL_CONTEXT_LEXICAL); 713 RECORD(DECL_CONTEXT_VISIBLE); 714 // Statements and Exprs can occur in the Decls and Types block. 715 AddStmtsExprs(Stream, Record); 716#undef RECORD 717#undef BLOCK 718 Stream.ExitBlock(); 719} 720 721/// \brief Adjusts the given filename to only write out the portion of the 722/// filename that is not part of the system root directory. 723/// 724/// \param Filename the file name to adjust. 725/// 726/// \param isysroot When non-NULL, the PCH file is a relocatable PCH file and 727/// the returned filename will be adjusted by this system root. 728/// 729/// \returns either the original filename (if it needs no adjustment) or the 730/// adjusted filename (which points into the @p Filename parameter). 731static const char * 732adjustFilenameForRelocatablePCH(const char *Filename, const char *isysroot) { 733 assert(Filename && "No file name to adjust?"); 734 735 if (!isysroot) 736 return Filename; 737 738 // Verify that the filename and the system root have the same prefix. 739 unsigned Pos = 0; 740 for (; Filename[Pos] && isysroot[Pos]; ++Pos) 741 if (Filename[Pos] != isysroot[Pos]) 742 return Filename; // Prefixes don't match. 743 744 // We hit the end of the filename before we hit the end of the system root. 745 if (!Filename[Pos]) 746 return Filename; 747 748 // If the file name has a '/' at the current position, skip over the '/'. 749 // We distinguish sysroot-based includes from absolute includes by the 750 // absence of '/' at the beginning of sysroot-based includes. 751 if (Filename[Pos] == '/') 752 ++Pos; 753 754 return Filename + Pos; 755} 756 757/// \brief Write the AST metadata (e.g., i686-apple-darwin9). 758void ASTWriter::WriteMetadata(ASTContext &Context, const char *isysroot) { 759 using namespace llvm; 760 761 // Metadata 762 const TargetInfo &Target = Context.Target; 763 BitCodeAbbrev *MetaAbbrev = new BitCodeAbbrev(); 764 MetaAbbrev->Add(BitCodeAbbrevOp( 765 Chain ? CHAINED_METADATA : METADATA)); 766 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // AST major 767 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // AST minor 768 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang major 769 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang minor 770 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Relocatable 771 // Target triple or chained PCH name 772 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 773 unsigned MetaAbbrevCode = Stream.EmitAbbrev(MetaAbbrev); 774 775 RecordData Record; 776 Record.push_back(Chain ? CHAINED_METADATA : METADATA); 777 Record.push_back(VERSION_MAJOR); 778 Record.push_back(VERSION_MINOR); 779 Record.push_back(CLANG_VERSION_MAJOR); 780 Record.push_back(CLANG_VERSION_MINOR); 781 Record.push_back(isysroot != 0); 782 // FIXME: This writes the absolute path for chained headers. 783 const std::string &BlobStr = Chain ? Chain->getFileName() : Target.getTriple().getTriple(); 784 Stream.EmitRecordWithBlob(MetaAbbrevCode, Record, BlobStr); 785 786 // Original file name 787 SourceManager &SM = Context.getSourceManager(); 788 if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) { 789 BitCodeAbbrev *FileAbbrev = new BitCodeAbbrev(); 790 FileAbbrev->Add(BitCodeAbbrevOp(ORIGINAL_FILE_NAME)); 791 FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name 792 unsigned FileAbbrevCode = Stream.EmitAbbrev(FileAbbrev); 793 794 llvm::sys::Path MainFilePath(MainFile->getName()); 795 796 MainFilePath.makeAbsolute(); 797 798 const char *MainFileNameStr = MainFilePath.c_str(); 799 MainFileNameStr = adjustFilenameForRelocatablePCH(MainFileNameStr, 800 isysroot); 801 RecordData Record; 802 Record.push_back(ORIGINAL_FILE_NAME); 803 Stream.EmitRecordWithBlob(FileAbbrevCode, Record, MainFileNameStr); 804 } 805 806 // Repository branch/version information. 807 BitCodeAbbrev *RepoAbbrev = new BitCodeAbbrev(); 808 RepoAbbrev->Add(BitCodeAbbrevOp(VERSION_CONTROL_BRANCH_REVISION)); 809 RepoAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // SVN branch/tag 810 unsigned RepoAbbrevCode = Stream.EmitAbbrev(RepoAbbrev); 811 Record.clear(); 812 Record.push_back(VERSION_CONTROL_BRANCH_REVISION); 813 Stream.EmitRecordWithBlob(RepoAbbrevCode, Record, 814 getClangFullRepositoryVersion()); 815} 816 817/// \brief Write the LangOptions structure. 818void ASTWriter::WriteLanguageOptions(const LangOptions &LangOpts) { 819 RecordData Record; 820 Record.push_back(LangOpts.Trigraphs); 821 Record.push_back(LangOpts.BCPLComment); // BCPL-style '//' comments. 822 Record.push_back(LangOpts.DollarIdents); // '$' allowed in identifiers. 823 Record.push_back(LangOpts.AsmPreprocessor); // Preprocessor in asm mode. 824 Record.push_back(LangOpts.GNUMode); // True in gnu99 mode false in c99 mode (etc) 825 Record.push_back(LangOpts.GNUKeywords); // Allow GNU-extension keywords 826 Record.push_back(LangOpts.ImplicitInt); // C89 implicit 'int'. 827 Record.push_back(LangOpts.Digraphs); // C94, C99 and C++ 828 Record.push_back(LangOpts.HexFloats); // C99 Hexadecimal float constants. 829 Record.push_back(LangOpts.C99); // C99 Support 830 Record.push_back(LangOpts.Microsoft); // Microsoft extensions. 831 Record.push_back(LangOpts.CPlusPlus); // C++ Support 832 Record.push_back(LangOpts.CPlusPlus0x); // C++0x Support 833 Record.push_back(LangOpts.CXXOperatorNames); // Treat C++ operator names as keywords. 834 835 Record.push_back(LangOpts.ObjC1); // Objective-C 1 support enabled. 836 Record.push_back(LangOpts.ObjC2); // Objective-C 2 support enabled. 837 Record.push_back(LangOpts.ObjCNonFragileABI); // Objective-C 838 // modern abi enabled. 839 Record.push_back(LangOpts.ObjCNonFragileABI2); // Objective-C enhanced 840 // modern abi enabled. 841 Record.push_back(LangOpts.NoConstantCFStrings); // non cfstring generation enabled.. 842 843 Record.push_back(LangOpts.PascalStrings); // Allow Pascal strings 844 Record.push_back(LangOpts.WritableStrings); // Allow writable strings 845 Record.push_back(LangOpts.LaxVectorConversions); 846 Record.push_back(LangOpts.AltiVec); 847 Record.push_back(LangOpts.Exceptions); // Support exception handling. 848 Record.push_back(LangOpts.SjLjExceptions); 849 850 Record.push_back(LangOpts.NeXTRuntime); // Use NeXT runtime. 851 Record.push_back(LangOpts.Freestanding); // Freestanding implementation 852 Record.push_back(LangOpts.NoBuiltin); // Do not use builtin functions (-fno-builtin) 853 854 // Whether static initializers are protected by locks. 855 Record.push_back(LangOpts.ThreadsafeStatics); 856 Record.push_back(LangOpts.POSIXThreads); 857 Record.push_back(LangOpts.Blocks); // block extension to C 858 Record.push_back(LangOpts.EmitAllDecls); // Emit all declarations, even if 859 // they are unused. 860 Record.push_back(LangOpts.MathErrno); // Math functions must respect errno 861 // (modulo the platform support). 862 863 Record.push_back(LangOpts.getSignedOverflowBehavior()); 864 Record.push_back(LangOpts.HeinousExtensions); 865 866 Record.push_back(LangOpts.Optimize); // Whether __OPTIMIZE__ should be defined. 867 Record.push_back(LangOpts.OptimizeSize); // Whether __OPTIMIZE_SIZE__ should be 868 // defined. 869 Record.push_back(LangOpts.Static); // Should __STATIC__ be defined (as 870 // opposed to __DYNAMIC__). 871 Record.push_back(LangOpts.PICLevel); // The value for __PIC__, if non-zero. 872 873 Record.push_back(LangOpts.GNUInline); // Should GNU inline semantics be 874 // used (instead of C99 semantics). 875 Record.push_back(LangOpts.NoInline); // Should __NO_INLINE__ be defined. 876 Record.push_back(LangOpts.AccessControl); // Whether C++ access control should 877 // be enabled. 878 Record.push_back(LangOpts.CharIsSigned); // Whether char is a signed or 879 // unsigned type 880 Record.push_back(LangOpts.ShortWChar); // force wchar_t to be unsigned short 881 Record.push_back(LangOpts.getGCMode()); 882 Record.push_back(LangOpts.getVisibilityMode()); 883 Record.push_back(LangOpts.getStackProtectorMode()); 884 Record.push_back(LangOpts.InstantiationDepth); 885 Record.push_back(LangOpts.OpenCL); 886 Record.push_back(LangOpts.CatchUndefined); 887 Record.push_back(LangOpts.ElideConstructors); 888 Record.push_back(LangOpts.SpellChecking); 889 Stream.EmitRecord(LANGUAGE_OPTIONS, Record); 890} 891 892//===----------------------------------------------------------------------===// 893// stat cache Serialization 894//===----------------------------------------------------------------------===// 895 896namespace { 897// Trait used for the on-disk hash table of stat cache results. 898class ASTStatCacheTrait { 899public: 900 typedef const char * key_type; 901 typedef key_type key_type_ref; 902 903 typedef std::pair<int, struct stat> data_type; 904 typedef const data_type& data_type_ref; 905 906 static unsigned ComputeHash(const char *path) { 907 return llvm::HashString(path); 908 } 909 910 std::pair<unsigned,unsigned> 911 EmitKeyDataLength(llvm::raw_ostream& Out, const char *path, 912 data_type_ref Data) { 913 unsigned StrLen = strlen(path); 914 clang::io::Emit16(Out, StrLen); 915 unsigned DataLen = 1; // result value 916 if (Data.first == 0) 917 DataLen += 4 + 4 + 2 + 8 + 8; 918 clang::io::Emit8(Out, DataLen); 919 return std::make_pair(StrLen + 1, DataLen); 920 } 921 922 void EmitKey(llvm::raw_ostream& Out, const char *path, unsigned KeyLen) { 923 Out.write(path, KeyLen); 924 } 925 926 void EmitData(llvm::raw_ostream& Out, key_type_ref, 927 data_type_ref Data, unsigned DataLen) { 928 using namespace clang::io; 929 uint64_t Start = Out.tell(); (void)Start; 930 931 // Result of stat() 932 Emit8(Out, Data.first? 1 : 0); 933 934 if (Data.first == 0) { 935 Emit32(Out, (uint32_t) Data.second.st_ino); 936 Emit32(Out, (uint32_t) Data.second.st_dev); 937 Emit16(Out, (uint16_t) Data.second.st_mode); 938 Emit64(Out, (uint64_t) Data.second.st_mtime); 939 Emit64(Out, (uint64_t) Data.second.st_size); 940 } 941 942 assert(Out.tell() - Start == DataLen && "Wrong data length"); 943 } 944}; 945} // end anonymous namespace 946 947/// \brief Write the stat() system call cache to the AST file. 948void ASTWriter::WriteStatCache(MemorizeStatCalls &StatCalls) { 949 // Build the on-disk hash table containing information about every 950 // stat() call. 951 OnDiskChainedHashTableGenerator<ASTStatCacheTrait> Generator; 952 unsigned NumStatEntries = 0; 953 for (MemorizeStatCalls::iterator Stat = StatCalls.begin(), 954 StatEnd = StatCalls.end(); 955 Stat != StatEnd; ++Stat, ++NumStatEntries) { 956 const char *Filename = Stat->first(); 957 Generator.insert(Filename, Stat->second); 958 } 959 960 // Create the on-disk hash table in a buffer. 961 llvm::SmallString<4096> StatCacheData; 962 uint32_t BucketOffset; 963 { 964 llvm::raw_svector_ostream Out(StatCacheData); 965 // Make sure that no bucket is at offset 0 966 clang::io::Emit32(Out, 0); 967 BucketOffset = Generator.Emit(Out); 968 } 969 970 // Create a blob abbreviation 971 using namespace llvm; 972 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 973 Abbrev->Add(BitCodeAbbrevOp(STAT_CACHE)); 974 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 975 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 976 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 977 unsigned StatCacheAbbrev = Stream.EmitAbbrev(Abbrev); 978 979 // Write the stat cache 980 RecordData Record; 981 Record.push_back(STAT_CACHE); 982 Record.push_back(BucketOffset); 983 Record.push_back(NumStatEntries); 984 Stream.EmitRecordWithBlob(StatCacheAbbrev, Record, StatCacheData.str()); 985} 986 987//===----------------------------------------------------------------------===// 988// Source Manager Serialization 989//===----------------------------------------------------------------------===// 990 991/// \brief Create an abbreviation for the SLocEntry that refers to a 992/// file. 993static unsigned CreateSLocFileAbbrev(llvm::BitstreamWriter &Stream) { 994 using namespace llvm; 995 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 996 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_FILE_ENTRY)); 997 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset 998 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location 999 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Characteristic 1000 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives 1001 // FileEntry fields. 1002 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 12)); // Size 1003 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 32)); // Modification time 1004 // HeaderFileInfo fields. 1005 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isImport 1006 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // DirInfo 1007 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumIncludes 1008 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // ControllingMacro 1009 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name 1010 return Stream.EmitAbbrev(Abbrev); 1011} 1012 1013/// \brief Create an abbreviation for the SLocEntry that refers to a 1014/// buffer. 1015static unsigned CreateSLocBufferAbbrev(llvm::BitstreamWriter &Stream) { 1016 using namespace llvm; 1017 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1018 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_BUFFER_ENTRY)); 1019 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset 1020 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location 1021 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Characteristic 1022 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives 1023 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Buffer name blob 1024 return Stream.EmitAbbrev(Abbrev); 1025} 1026 1027/// \brief Create an abbreviation for the SLocEntry that refers to a 1028/// buffer's blob. 1029static unsigned CreateSLocBufferBlobAbbrev(llvm::BitstreamWriter &Stream) { 1030 using namespace llvm; 1031 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1032 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_BUFFER_BLOB)); 1033 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Blob 1034 return Stream.EmitAbbrev(Abbrev); 1035} 1036 1037/// \brief Create an abbreviation for the SLocEntry that refers to an 1038/// buffer. 1039static unsigned CreateSLocInstantiationAbbrev(llvm::BitstreamWriter &Stream) { 1040 using namespace llvm; 1041 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1042 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_INSTANTIATION_ENTRY)); 1043 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset 1044 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Spelling location 1045 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Start location 1046 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // End location 1047 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Token length 1048 return Stream.EmitAbbrev(Abbrev); 1049} 1050 1051/// \brief Writes the block containing the serialized form of the 1052/// source manager. 1053/// 1054/// TODO: We should probably use an on-disk hash table (stored in a 1055/// blob), indexed based on the file name, so that we only create 1056/// entries for files that we actually need. In the common case (no 1057/// errors), we probably won't have to create file entries for any of 1058/// the files in the AST. 1059void ASTWriter::WriteSourceManagerBlock(SourceManager &SourceMgr, 1060 const Preprocessor &PP, 1061 const char *isysroot) { 1062 RecordData Record; 1063 1064 // Enter the source manager block. 1065 Stream.EnterSubblock(SOURCE_MANAGER_BLOCK_ID, 3); 1066 1067 // Abbreviations for the various kinds of source-location entries. 1068 unsigned SLocFileAbbrv = CreateSLocFileAbbrev(Stream); 1069 unsigned SLocBufferAbbrv = CreateSLocBufferAbbrev(Stream); 1070 unsigned SLocBufferBlobAbbrv = CreateSLocBufferBlobAbbrev(Stream); 1071 unsigned SLocInstantiationAbbrv = CreateSLocInstantiationAbbrev(Stream); 1072 1073 // Write the line table. 1074 if (SourceMgr.hasLineTable()) { 1075 LineTableInfo &LineTable = SourceMgr.getLineTable(); 1076 1077 // Emit the file names 1078 Record.push_back(LineTable.getNumFilenames()); 1079 for (unsigned I = 0, N = LineTable.getNumFilenames(); I != N; ++I) { 1080 // Emit the file name 1081 const char *Filename = LineTable.getFilename(I); 1082 Filename = adjustFilenameForRelocatablePCH(Filename, isysroot); 1083 unsigned FilenameLen = Filename? strlen(Filename) : 0; 1084 Record.push_back(FilenameLen); 1085 if (FilenameLen) 1086 Record.insert(Record.end(), Filename, Filename + FilenameLen); 1087 } 1088 1089 // Emit the line entries 1090 for (LineTableInfo::iterator L = LineTable.begin(), LEnd = LineTable.end(); 1091 L != LEnd; ++L) { 1092 // Emit the file ID 1093 Record.push_back(L->first); 1094 1095 // Emit the line entries 1096 Record.push_back(L->second.size()); 1097 for (std::vector<LineEntry>::iterator LE = L->second.begin(), 1098 LEEnd = L->second.end(); 1099 LE != LEEnd; ++LE) { 1100 Record.push_back(LE->FileOffset); 1101 Record.push_back(LE->LineNo); 1102 Record.push_back(LE->FilenameID); 1103 Record.push_back((unsigned)LE->FileKind); 1104 Record.push_back(LE->IncludeOffset); 1105 } 1106 } 1107 Stream.EmitRecord(SM_LINE_TABLE, Record); 1108 } 1109 1110 // Write out the source location entry table. We skip the first 1111 // entry, which is always the same dummy entry. 1112 std::vector<uint32_t> SLocEntryOffsets; 1113 RecordData PreloadSLocs; 1114 unsigned BaseSLocID = Chain ? Chain->getTotalNumSLocs() : 0; 1115 SLocEntryOffsets.reserve(SourceMgr.sloc_entry_size() - 1 - BaseSLocID); 1116 for (unsigned I = BaseSLocID + 1, N = SourceMgr.sloc_entry_size(); 1117 I != N; ++I) { 1118 // Get this source location entry. 1119 const SrcMgr::SLocEntry *SLoc = &SourceMgr.getSLocEntry(I); 1120 1121 // Record the offset of this source-location entry. 1122 SLocEntryOffsets.push_back(Stream.GetCurrentBitNo()); 1123 1124 // Figure out which record code to use. 1125 unsigned Code; 1126 if (SLoc->isFile()) { 1127 if (SLoc->getFile().getContentCache()->Entry) 1128 Code = SM_SLOC_FILE_ENTRY; 1129 else 1130 Code = SM_SLOC_BUFFER_ENTRY; 1131 } else 1132 Code = SM_SLOC_INSTANTIATION_ENTRY; 1133 Record.clear(); 1134 Record.push_back(Code); 1135 1136 Record.push_back(SLoc->getOffset()); 1137 if (SLoc->isFile()) { 1138 const SrcMgr::FileInfo &File = SLoc->getFile(); 1139 Record.push_back(File.getIncludeLoc().getRawEncoding()); 1140 Record.push_back(File.getFileCharacteristic()); // FIXME: stable encoding 1141 Record.push_back(File.hasLineDirectives()); 1142 1143 const SrcMgr::ContentCache *Content = File.getContentCache(); 1144 if (Content->Entry) { 1145 // The source location entry is a file. The blob associated 1146 // with this entry is the file name. 1147 1148 // Emit size/modification time for this file. 1149 Record.push_back(Content->Entry->getSize()); 1150 Record.push_back(Content->Entry->getModificationTime()); 1151 1152 // Emit header-search information associated with this file. 1153 HeaderFileInfo HFI; 1154 HeaderSearch &HS = PP.getHeaderSearchInfo(); 1155 if (Content->Entry->getUID() < HS.header_file_size()) 1156 HFI = HS.header_file_begin()[Content->Entry->getUID()]; 1157 Record.push_back(HFI.isImport); 1158 Record.push_back(HFI.DirInfo); 1159 Record.push_back(HFI.NumIncludes); 1160 AddIdentifierRef(HFI.ControllingMacro, Record); 1161 1162 // Turn the file name into an absolute path, if it isn't already. 1163 const char *Filename = Content->Entry->getName(); 1164 llvm::sys::Path FilePath(Filename, strlen(Filename)); 1165 FilePath.makeAbsolute(); 1166 Filename = FilePath.c_str(); 1167 1168 Filename = adjustFilenameForRelocatablePCH(Filename, isysroot); 1169 Stream.EmitRecordWithBlob(SLocFileAbbrv, Record, Filename); 1170 1171 // FIXME: For now, preload all file source locations, so that 1172 // we get the appropriate File entries in the reader. This is 1173 // a temporary measure. 1174 PreloadSLocs.push_back(BaseSLocID + SLocEntryOffsets.size()); 1175 } else { 1176 // The source location entry is a buffer. The blob associated 1177 // with this entry contains the contents of the buffer. 1178 1179 // We add one to the size so that we capture the trailing NULL 1180 // that is required by llvm::MemoryBuffer::getMemBuffer (on 1181 // the reader side). 1182 const llvm::MemoryBuffer *Buffer 1183 = Content->getBuffer(PP.getDiagnostics(), PP.getSourceManager()); 1184 const char *Name = Buffer->getBufferIdentifier(); 1185 Stream.EmitRecordWithBlob(SLocBufferAbbrv, Record, 1186 llvm::StringRef(Name, strlen(Name) + 1)); 1187 Record.clear(); 1188 Record.push_back(SM_SLOC_BUFFER_BLOB); 1189 Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record, 1190 llvm::StringRef(Buffer->getBufferStart(), 1191 Buffer->getBufferSize() + 1)); 1192 1193 if (strcmp(Name, "<built-in>") == 0) 1194 PreloadSLocs.push_back(BaseSLocID + SLocEntryOffsets.size()); 1195 } 1196 } else { 1197 // The source location entry is an instantiation. 1198 const SrcMgr::InstantiationInfo &Inst = SLoc->getInstantiation(); 1199 Record.push_back(Inst.getSpellingLoc().getRawEncoding()); 1200 Record.push_back(Inst.getInstantiationLocStart().getRawEncoding()); 1201 Record.push_back(Inst.getInstantiationLocEnd().getRawEncoding()); 1202 1203 // Compute the token length for this macro expansion. 1204 unsigned NextOffset = SourceMgr.getNextOffset(); 1205 if (I + 1 != N) 1206 NextOffset = SourceMgr.getSLocEntry(I + 1).getOffset(); 1207 Record.push_back(NextOffset - SLoc->getOffset() - 1); 1208 Stream.EmitRecordWithAbbrev(SLocInstantiationAbbrv, Record); 1209 } 1210 } 1211 1212 Stream.ExitBlock(); 1213 1214 if (SLocEntryOffsets.empty()) 1215 return; 1216 1217 // Write the source-location offsets table into the AST block. This 1218 // table is used for lazily loading source-location information. 1219 using namespace llvm; 1220 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1221 Abbrev->Add(BitCodeAbbrevOp(SOURCE_LOCATION_OFFSETS)); 1222 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // # of slocs 1223 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // next offset 1224 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets 1225 unsigned SLocOffsetsAbbrev = Stream.EmitAbbrev(Abbrev); 1226 1227 Record.clear(); 1228 Record.push_back(SOURCE_LOCATION_OFFSETS); 1229 Record.push_back(SLocEntryOffsets.size()); 1230 unsigned BaseOffset = Chain ? Chain->getNextSLocOffset() : 0; 1231 Record.push_back(SourceMgr.getNextOffset() - BaseOffset); 1232 Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record, 1233 (const char *)data(SLocEntryOffsets), 1234 SLocEntryOffsets.size()*sizeof(SLocEntryOffsets[0])); 1235 1236 // Write the source location entry preloads array, telling the AST 1237 // reader which source locations entries it should load eagerly. 1238 Stream.EmitRecord(SOURCE_LOCATION_PRELOADS, PreloadSLocs); 1239} 1240 1241//===----------------------------------------------------------------------===// 1242// Preprocessor Serialization 1243//===----------------------------------------------------------------------===// 1244 1245/// \brief Writes the block containing the serialized form of the 1246/// preprocessor. 1247/// 1248void ASTWriter::WritePreprocessor(const Preprocessor &PP) { 1249 RecordData Record; 1250 1251 // If the preprocessor __COUNTER__ value has been bumped, remember it. 1252 if (PP.getCounterValue() != 0) { 1253 Record.push_back(PP.getCounterValue()); 1254 Stream.EmitRecord(PP_COUNTER_VALUE, Record); 1255 Record.clear(); 1256 } 1257 1258 // Enter the preprocessor block. 1259 Stream.EnterSubblock(PREPROCESSOR_BLOCK_ID, 3); 1260 1261 // If the AST file contains __DATE__ or __TIME__ emit a warning about this. 1262 // FIXME: use diagnostics subsystem for localization etc. 1263 if (PP.SawDateOrTime()) 1264 fprintf(stderr, "warning: precompiled header used __DATE__ or __TIME__.\n"); 1265 1266 1267 // Loop over all the macro definitions that are live at the end of the file, 1268 // emitting each to the PP section. 1269 PreprocessingRecord *PPRec = PP.getPreprocessingRecord(); 1270 unsigned InclusionAbbrev = 0; 1271 if (PPRec) { 1272 using namespace llvm; 1273 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1274 Abbrev->Add(BitCodeAbbrevOp(PP_INCLUSION_DIRECTIVE)); 1275 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // index 1276 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // start location 1277 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // end location 1278 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // filename length 1279 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // in quotes 1280 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // kind 1281 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1282 InclusionAbbrev = Stream.EmitAbbrev(Abbrev); 1283 } 1284 1285 for (Preprocessor::macro_iterator I = PP.macro_begin(), E = PP.macro_end(); 1286 I != E; ++I) { 1287 // FIXME: This emits macros in hash table order, we should do it in a stable 1288 // order so that output is reproducible. 1289 MacroInfo *MI = I->second; 1290 1291 // Don't emit builtin macros like __LINE__ to the AST file unless they have 1292 // been redefined by the header (in which case they are not isBuiltinMacro). 1293 // Also skip macros from a AST file if we're chaining. 1294 1295 // FIXME: There is a (probably minor) optimization we could do here, if 1296 // the macro comes from the original PCH but the identifier comes from a 1297 // chained PCH, by storing the offset into the original PCH rather than 1298 // writing the macro definition a second time. 1299 if (MI->isBuiltinMacro() || 1300 (Chain && I->first->isFromAST() && MI->isFromAST())) 1301 continue; 1302 1303 AddIdentifierRef(I->first, Record); 1304 MacroOffsets[I->first] = Stream.GetCurrentBitNo(); 1305 Record.push_back(MI->getDefinitionLoc().getRawEncoding()); 1306 Record.push_back(MI->isUsed()); 1307 1308 unsigned Code; 1309 if (MI->isObjectLike()) { 1310 Code = PP_MACRO_OBJECT_LIKE; 1311 } else { 1312 Code = PP_MACRO_FUNCTION_LIKE; 1313 1314 Record.push_back(MI->isC99Varargs()); 1315 Record.push_back(MI->isGNUVarargs()); 1316 Record.push_back(MI->getNumArgs()); 1317 for (MacroInfo::arg_iterator I = MI->arg_begin(), E = MI->arg_end(); 1318 I != E; ++I) 1319 AddIdentifierRef(*I, Record); 1320 } 1321 1322 // If we have a detailed preprocessing record, record the macro definition 1323 // ID that corresponds to this macro. 1324 if (PPRec) 1325 Record.push_back(getMacroDefinitionID(PPRec->findMacroDefinition(MI))); 1326 1327 Stream.EmitRecord(Code, Record); 1328 Record.clear(); 1329 1330 // Emit the tokens array. 1331 for (unsigned TokNo = 0, e = MI->getNumTokens(); TokNo != e; ++TokNo) { 1332 // Note that we know that the preprocessor does not have any annotation 1333 // tokens in it because they are created by the parser, and thus can't be 1334 // in a macro definition. 1335 const Token &Tok = MI->getReplacementToken(TokNo); 1336 1337 Record.push_back(Tok.getLocation().getRawEncoding()); 1338 Record.push_back(Tok.getLength()); 1339 1340 // FIXME: When reading literal tokens, reconstruct the literal pointer if 1341 // it is needed. 1342 AddIdentifierRef(Tok.getIdentifierInfo(), Record); 1343 1344 // FIXME: Should translate token kind to a stable encoding. 1345 Record.push_back(Tok.getKind()); 1346 // FIXME: Should translate token flags to a stable encoding. 1347 Record.push_back(Tok.getFlags()); 1348 1349 Stream.EmitRecord(PP_TOKEN, Record); 1350 Record.clear(); 1351 } 1352 ++NumMacros; 1353 } 1354 1355 // If the preprocessor has a preprocessing record, emit it. 1356 unsigned NumPreprocessingRecords = 0; 1357 if (PPRec) { 1358 unsigned IndexBase = Chain ? PPRec->getNumPreallocatedEntities() : 0; 1359 for (PreprocessingRecord::iterator E = PPRec->begin(Chain), 1360 EEnd = PPRec->end(Chain); 1361 E != EEnd; ++E) { 1362 Record.clear(); 1363 1364 if (MacroInstantiation *MI = dyn_cast<MacroInstantiation>(*E)) { 1365 Record.push_back(IndexBase + NumPreprocessingRecords++); 1366 AddSourceLocation(MI->getSourceRange().getBegin(), Record); 1367 AddSourceLocation(MI->getSourceRange().getEnd(), Record); 1368 AddIdentifierRef(MI->getName(), Record); 1369 Record.push_back(getMacroDefinitionID(MI->getDefinition())); 1370 Stream.EmitRecord(PP_MACRO_INSTANTIATION, Record); 1371 continue; 1372 } 1373 1374 if (MacroDefinition *MD = dyn_cast<MacroDefinition>(*E)) { 1375 // Record this macro definition's location. 1376 MacroID ID = getMacroDefinitionID(MD); 1377 1378 // Don't write the macro definition if it is from another AST file. 1379 if (ID < FirstMacroID) 1380 continue; 1381 1382 unsigned Position = ID - FirstMacroID; 1383 if (Position != MacroDefinitionOffsets.size()) { 1384 if (Position > MacroDefinitionOffsets.size()) 1385 MacroDefinitionOffsets.resize(Position + 1); 1386 1387 MacroDefinitionOffsets[Position] = Stream.GetCurrentBitNo(); 1388 } else 1389 MacroDefinitionOffsets.push_back(Stream.GetCurrentBitNo()); 1390 1391 Record.push_back(IndexBase + NumPreprocessingRecords++); 1392 Record.push_back(ID); 1393 AddSourceLocation(MD->getSourceRange().getBegin(), Record); 1394 AddSourceLocation(MD->getSourceRange().getEnd(), Record); 1395 AddIdentifierRef(MD->getName(), Record); 1396 AddSourceLocation(MD->getLocation(), Record); 1397 Stream.EmitRecord(PP_MACRO_DEFINITION, Record); 1398 continue; 1399 } 1400 1401 if (InclusionDirective *ID = dyn_cast<InclusionDirective>(*E)) { 1402 Record.push_back(PP_INCLUSION_DIRECTIVE); 1403 Record.push_back(IndexBase + NumPreprocessingRecords++); 1404 AddSourceLocation(ID->getSourceRange().getBegin(), Record); 1405 AddSourceLocation(ID->getSourceRange().getEnd(), Record); 1406 Record.push_back(ID->getFileName().size()); 1407 Record.push_back(ID->wasInQuotes()); 1408 Record.push_back(static_cast<unsigned>(ID->getKind())); 1409 llvm::SmallString<64> Buffer; 1410 Buffer += ID->getFileName(); 1411 Buffer += ID->getFile()->getName(); 1412 Stream.EmitRecordWithBlob(InclusionAbbrev, Record, Buffer); 1413 continue; 1414 } 1415 } 1416 } 1417 1418 Stream.ExitBlock(); 1419 1420 // Write the offsets table for the preprocessing record. 1421 if (NumPreprocessingRecords > 0) { 1422 // Write the offsets table for identifier IDs. 1423 using namespace llvm; 1424 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1425 Abbrev->Add(BitCodeAbbrevOp(MACRO_DEFINITION_OFFSETS)); 1426 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of records 1427 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of macro defs 1428 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1429 unsigned MacroDefOffsetAbbrev = Stream.EmitAbbrev(Abbrev); 1430 1431 Record.clear(); 1432 Record.push_back(MACRO_DEFINITION_OFFSETS); 1433 Record.push_back(NumPreprocessingRecords); 1434 Record.push_back(MacroDefinitionOffsets.size()); 1435 Stream.EmitRecordWithBlob(MacroDefOffsetAbbrev, Record, 1436 (const char *)data(MacroDefinitionOffsets), 1437 MacroDefinitionOffsets.size() * sizeof(uint32_t)); 1438 } 1439} 1440 1441//===----------------------------------------------------------------------===// 1442// Type Serialization 1443//===----------------------------------------------------------------------===// 1444 1445/// \brief Write the representation of a type to the AST stream. 1446void ASTWriter::WriteType(QualType T) { 1447 TypeIdx &Idx = TypeIdxs[T]; 1448 if (Idx.getIndex() == 0) // we haven't seen this type before. 1449 Idx = TypeIdx(NextTypeID++); 1450 1451 assert(Idx.getIndex() >= FirstTypeID && "Re-writing a type from a prior AST"); 1452 1453 // Record the offset for this type. 1454 unsigned Index = Idx.getIndex() - FirstTypeID; 1455 if (TypeOffsets.size() == Index) 1456 TypeOffsets.push_back(Stream.GetCurrentBitNo()); 1457 else if (TypeOffsets.size() < Index) { 1458 TypeOffsets.resize(Index + 1); 1459 TypeOffsets[Index] = Stream.GetCurrentBitNo(); 1460 } 1461 1462 RecordData Record; 1463 1464 // Emit the type's representation. 1465 ASTTypeWriter W(*this, Record); 1466 1467 if (T.hasLocalNonFastQualifiers()) { 1468 Qualifiers Qs = T.getLocalQualifiers(); 1469 AddTypeRef(T.getLocalUnqualifiedType(), Record); 1470 Record.push_back(Qs.getAsOpaqueValue()); 1471 W.Code = TYPE_EXT_QUAL; 1472 } else { 1473 switch (T->getTypeClass()) { 1474 // For all of the concrete, non-dependent types, call the 1475 // appropriate visitor function. 1476#define TYPE(Class, Base) \ 1477 case Type::Class: W.Visit##Class##Type(cast<Class##Type>(T)); break; 1478#define ABSTRACT_TYPE(Class, Base) 1479#include "clang/AST/TypeNodes.def" 1480 } 1481 } 1482 1483 // Emit the serialized record. 1484 Stream.EmitRecord(W.Code, Record); 1485 1486 // Flush any expressions that were written as part of this type. 1487 FlushStmts(); 1488} 1489 1490//===----------------------------------------------------------------------===// 1491// Declaration Serialization 1492//===----------------------------------------------------------------------===// 1493 1494/// \brief Write the block containing all of the declaration IDs 1495/// lexically declared within the given DeclContext. 1496/// 1497/// \returns the offset of the DECL_CONTEXT_LEXICAL block within the 1498/// bistream, or 0 if no block was written. 1499uint64_t ASTWriter::WriteDeclContextLexicalBlock(ASTContext &Context, 1500 DeclContext *DC) { 1501 if (DC->decls_empty()) 1502 return 0; 1503 1504 uint64_t Offset = Stream.GetCurrentBitNo(); 1505 RecordData Record; 1506 Record.push_back(DECL_CONTEXT_LEXICAL); 1507 llvm::SmallVector<KindDeclIDPair, 64> Decls; 1508 for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end(); 1509 D != DEnd; ++D) 1510 Decls.push_back(std::make_pair((*D)->getKind(), GetDeclRef(*D))); 1511 1512 ++NumLexicalDeclContexts; 1513 Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record, 1514 reinterpret_cast<char*>(Decls.data()), 1515 Decls.size() * sizeof(KindDeclIDPair)); 1516 return Offset; 1517} 1518 1519void ASTWriter::WriteTypeDeclOffsets() { 1520 using namespace llvm; 1521 RecordData Record; 1522 1523 // Write the type offsets array 1524 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1525 Abbrev->Add(BitCodeAbbrevOp(TYPE_OFFSET)); 1526 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of types 1527 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // types block 1528 unsigned TypeOffsetAbbrev = Stream.EmitAbbrev(Abbrev); 1529 Record.clear(); 1530 Record.push_back(TYPE_OFFSET); 1531 Record.push_back(TypeOffsets.size()); 1532 Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record, 1533 (const char *)data(TypeOffsets), 1534 TypeOffsets.size() * sizeof(TypeOffsets[0])); 1535 1536 // Write the declaration offsets array 1537 Abbrev = new BitCodeAbbrev(); 1538 Abbrev->Add(BitCodeAbbrevOp(DECL_OFFSET)); 1539 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of declarations 1540 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // declarations block 1541 unsigned DeclOffsetAbbrev = Stream.EmitAbbrev(Abbrev); 1542 Record.clear(); 1543 Record.push_back(DECL_OFFSET); 1544 Record.push_back(DeclOffsets.size()); 1545 Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record, 1546 (const char *)data(DeclOffsets), 1547 DeclOffsets.size() * sizeof(DeclOffsets[0])); 1548} 1549 1550//===----------------------------------------------------------------------===// 1551// Global Method Pool and Selector Serialization 1552//===----------------------------------------------------------------------===// 1553 1554namespace { 1555// Trait used for the on-disk hash table used in the method pool. 1556class ASTMethodPoolTrait { 1557 ASTWriter &Writer; 1558 1559public: 1560 typedef Selector key_type; 1561 typedef key_type key_type_ref; 1562 1563 struct data_type { 1564 SelectorID ID; 1565 ObjCMethodList Instance, Factory; 1566 }; 1567 typedef const data_type& data_type_ref; 1568 1569 explicit ASTMethodPoolTrait(ASTWriter &Writer) : Writer(Writer) { } 1570 1571 static unsigned ComputeHash(Selector Sel) { 1572 return serialization::ComputeHash(Sel); 1573 } 1574 1575 std::pair<unsigned,unsigned> 1576 EmitKeyDataLength(llvm::raw_ostream& Out, Selector Sel, 1577 data_type_ref Methods) { 1578 unsigned KeyLen = 2 + (Sel.getNumArgs()? Sel.getNumArgs() * 4 : 4); 1579 clang::io::Emit16(Out, KeyLen); 1580 unsigned DataLen = 4 + 2 + 2; // 2 bytes for each of the method counts 1581 for (const ObjCMethodList *Method = &Methods.Instance; Method; 1582 Method = Method->Next) 1583 if (Method->Method) 1584 DataLen += 4; 1585 for (const ObjCMethodList *Method = &Methods.Factory; Method; 1586 Method = Method->Next) 1587 if (Method->Method) 1588 DataLen += 4; 1589 clang::io::Emit16(Out, DataLen); 1590 return std::make_pair(KeyLen, DataLen); 1591 } 1592 1593 void EmitKey(llvm::raw_ostream& Out, Selector Sel, unsigned) { 1594 uint64_t Start = Out.tell(); 1595 assert((Start >> 32) == 0 && "Selector key offset too large"); 1596 Writer.SetSelectorOffset(Sel, Start); 1597 unsigned N = Sel.getNumArgs(); 1598 clang::io::Emit16(Out, N); 1599 if (N == 0) 1600 N = 1; 1601 for (unsigned I = 0; I != N; ++I) 1602 clang::io::Emit32(Out, 1603 Writer.getIdentifierRef(Sel.getIdentifierInfoForSlot(I))); 1604 } 1605 1606 void EmitData(llvm::raw_ostream& Out, key_type_ref, 1607 data_type_ref Methods, unsigned DataLen) { 1608 uint64_t Start = Out.tell(); (void)Start; 1609 clang::io::Emit32(Out, Methods.ID); 1610 unsigned NumInstanceMethods = 0; 1611 for (const ObjCMethodList *Method = &Methods.Instance; Method; 1612 Method = Method->Next) 1613 if (Method->Method) 1614 ++NumInstanceMethods; 1615 1616 unsigned NumFactoryMethods = 0; 1617 for (const ObjCMethodList *Method = &Methods.Factory; Method; 1618 Method = Method->Next) 1619 if (Method->Method) 1620 ++NumFactoryMethods; 1621 1622 clang::io::Emit16(Out, NumInstanceMethods); 1623 clang::io::Emit16(Out, NumFactoryMethods); 1624 for (const ObjCMethodList *Method = &Methods.Instance; Method; 1625 Method = Method->Next) 1626 if (Method->Method) 1627 clang::io::Emit32(Out, Writer.getDeclID(Method->Method)); 1628 for (const ObjCMethodList *Method = &Methods.Factory; Method; 1629 Method = Method->Next) 1630 if (Method->Method) 1631 clang::io::Emit32(Out, Writer.getDeclID(Method->Method)); 1632 1633 assert(Out.tell() - Start == DataLen && "Data length is wrong"); 1634 } 1635}; 1636} // end anonymous namespace 1637 1638/// \brief Write ObjC data: selectors and the method pool. 1639/// 1640/// The method pool contains both instance and factory methods, stored 1641/// in an on-disk hash table indexed by the selector. The hash table also 1642/// contains an empty entry for every other selector known to Sema. 1643void ASTWriter::WriteSelectors(Sema &SemaRef) { 1644 using namespace llvm; 1645 1646 // Do we have to do anything at all? 1647 if (SemaRef.MethodPool.empty() && SelectorIDs.empty()) 1648 return; 1649 unsigned NumTableEntries = 0; 1650 // Create and write out the blob that contains selectors and the method pool. 1651 { 1652 OnDiskChainedHashTableGenerator<ASTMethodPoolTrait> Generator; 1653 ASTMethodPoolTrait Trait(*this); 1654 1655 // Create the on-disk hash table representation. We walk through every 1656 // selector we've seen and look it up in the method pool. 1657 SelectorOffsets.resize(NextSelectorID - FirstSelectorID); 1658 for (llvm::DenseMap<Selector, SelectorID>::iterator 1659 I = SelectorIDs.begin(), E = SelectorIDs.end(); 1660 I != E; ++I) { 1661 Selector S = I->first; 1662 Sema::GlobalMethodPool::iterator F = SemaRef.MethodPool.find(S); 1663 ASTMethodPoolTrait::data_type Data = { 1664 I->second, 1665 ObjCMethodList(), 1666 ObjCMethodList() 1667 }; 1668 if (F != SemaRef.MethodPool.end()) { 1669 Data.Instance = F->second.first; 1670 Data.Factory = F->second.second; 1671 } 1672 // Only write this selector if it's not in an existing AST or something 1673 // changed. 1674 if (Chain && I->second < FirstSelectorID) { 1675 // Selector already exists. Did it change? 1676 bool changed = false; 1677 for (ObjCMethodList *M = &Data.Instance; !changed && M && M->Method; 1678 M = M->Next) { 1679 if (M->Method->getPCHLevel() == 0) 1680 changed = true; 1681 } 1682 for (ObjCMethodList *M = &Data.Factory; !changed && M && M->Method; 1683 M = M->Next) { 1684 if (M->Method->getPCHLevel() == 0) 1685 changed = true; 1686 } 1687 if (!changed) 1688 continue; 1689 } else if (Data.Instance.Method || Data.Factory.Method) { 1690 // A new method pool entry. 1691 ++NumTableEntries; 1692 } 1693 Generator.insert(S, Data, Trait); 1694 } 1695 1696 // Create the on-disk hash table in a buffer. 1697 llvm::SmallString<4096> MethodPool; 1698 uint32_t BucketOffset; 1699 { 1700 ASTMethodPoolTrait Trait(*this); 1701 llvm::raw_svector_ostream Out(MethodPool); 1702 // Make sure that no bucket is at offset 0 1703 clang::io::Emit32(Out, 0); 1704 BucketOffset = Generator.Emit(Out, Trait); 1705 } 1706 1707 // Create a blob abbreviation 1708 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1709 Abbrev->Add(BitCodeAbbrevOp(METHOD_POOL)); 1710 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1711 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1712 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1713 unsigned MethodPoolAbbrev = Stream.EmitAbbrev(Abbrev); 1714 1715 // Write the method pool 1716 RecordData Record; 1717 Record.push_back(METHOD_POOL); 1718 Record.push_back(BucketOffset); 1719 Record.push_back(NumTableEntries); 1720 Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool.str()); 1721 1722 // Create a blob abbreviation for the selector table offsets. 1723 Abbrev = new BitCodeAbbrev(); 1724 Abbrev->Add(BitCodeAbbrevOp(SELECTOR_OFFSETS)); 1725 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // index 1726 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1727 unsigned SelectorOffsetAbbrev = Stream.EmitAbbrev(Abbrev); 1728 1729 // Write the selector offsets table. 1730 Record.clear(); 1731 Record.push_back(SELECTOR_OFFSETS); 1732 Record.push_back(SelectorOffsets.size()); 1733 Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record, 1734 (const char *)data(SelectorOffsets), 1735 SelectorOffsets.size() * 4); 1736 } 1737} 1738 1739/// \brief Write the selectors referenced in @selector expression into AST file. 1740void ASTWriter::WriteReferencedSelectorsPool(Sema &SemaRef) { 1741 using namespace llvm; 1742 if (SemaRef.ReferencedSelectors.empty()) 1743 return; 1744 1745 RecordData Record; 1746 1747 // Note: this writes out all references even for a dependent AST. But it is 1748 // very tricky to fix, and given that @selector shouldn't really appear in 1749 // headers, probably not worth it. It's not a correctness issue. 1750 for (DenseMap<Selector, SourceLocation>::iterator S = 1751 SemaRef.ReferencedSelectors.begin(), 1752 E = SemaRef.ReferencedSelectors.end(); S != E; ++S) { 1753 Selector Sel = (*S).first; 1754 SourceLocation Loc = (*S).second; 1755 AddSelectorRef(Sel, Record); 1756 AddSourceLocation(Loc, Record); 1757 } 1758 Stream.EmitRecord(REFERENCED_SELECTOR_POOL, Record); 1759} 1760 1761//===----------------------------------------------------------------------===// 1762// Identifier Table Serialization 1763//===----------------------------------------------------------------------===// 1764 1765namespace { 1766class ASTIdentifierTableTrait { 1767 ASTWriter &Writer; 1768 Preprocessor &PP; 1769 1770 /// \brief Determines whether this is an "interesting" identifier 1771 /// that needs a full IdentifierInfo structure written into the hash 1772 /// table. 1773 static bool isInterestingIdentifier(const IdentifierInfo *II) { 1774 return II->isPoisoned() || 1775 II->isExtensionToken() || 1776 II->hasMacroDefinition() || 1777 II->getObjCOrBuiltinID() || 1778 II->getFETokenInfo<void>(); 1779 } 1780 1781public: 1782 typedef const IdentifierInfo* key_type; 1783 typedef key_type key_type_ref; 1784 1785 typedef IdentID data_type; 1786 typedef data_type data_type_ref; 1787 1788 ASTIdentifierTableTrait(ASTWriter &Writer, Preprocessor &PP) 1789 : Writer(Writer), PP(PP) { } 1790 1791 static unsigned ComputeHash(const IdentifierInfo* II) { 1792 return llvm::HashString(II->getName()); 1793 } 1794 1795 std::pair<unsigned,unsigned> 1796 EmitKeyDataLength(llvm::raw_ostream& Out, const IdentifierInfo* II, 1797 IdentID ID) { 1798 unsigned KeyLen = II->getLength() + 1; 1799 unsigned DataLen = 4; // 4 bytes for the persistent ID << 1 1800 if (isInterestingIdentifier(II)) { 1801 DataLen += 2; // 2 bytes for builtin ID, flags 1802 if (II->hasMacroDefinition() && 1803 !PP.getMacroInfo(const_cast<IdentifierInfo *>(II))->isBuiltinMacro()) 1804 DataLen += 4; 1805 for (IdentifierResolver::iterator D = IdentifierResolver::begin(II), 1806 DEnd = IdentifierResolver::end(); 1807 D != DEnd; ++D) 1808 DataLen += sizeof(DeclID); 1809 } 1810 clang::io::Emit16(Out, DataLen); 1811 // We emit the key length after the data length so that every 1812 // string is preceded by a 16-bit length. This matches the PTH 1813 // format for storing identifiers. 1814 clang::io::Emit16(Out, KeyLen); 1815 return std::make_pair(KeyLen, DataLen); 1816 } 1817 1818 void EmitKey(llvm::raw_ostream& Out, const IdentifierInfo* II, 1819 unsigned KeyLen) { 1820 // Record the location of the key data. This is used when generating 1821 // the mapping from persistent IDs to strings. 1822 Writer.SetIdentifierOffset(II, Out.tell()); 1823 Out.write(II->getNameStart(), KeyLen); 1824 } 1825 1826 void EmitData(llvm::raw_ostream& Out, const IdentifierInfo* II, 1827 IdentID ID, unsigned) { 1828 if (!isInterestingIdentifier(II)) { 1829 clang::io::Emit32(Out, ID << 1); 1830 return; 1831 } 1832 1833 clang::io::Emit32(Out, (ID << 1) | 0x01); 1834 uint32_t Bits = 0; 1835 bool hasMacroDefinition = 1836 II->hasMacroDefinition() && 1837 !PP.getMacroInfo(const_cast<IdentifierInfo *>(II))->isBuiltinMacro(); 1838 Bits = (uint32_t)II->getObjCOrBuiltinID(); 1839 Bits = (Bits << 1) | unsigned(hasMacroDefinition); 1840 Bits = (Bits << 1) | unsigned(II->isExtensionToken()); 1841 Bits = (Bits << 1) | unsigned(II->isPoisoned()); 1842 Bits = (Bits << 1) | unsigned(II->hasRevertedTokenIDToIdentifier()); 1843 Bits = (Bits << 1) | unsigned(II->isCPlusPlusOperatorKeyword()); 1844 clang::io::Emit16(Out, Bits); 1845 1846 if (hasMacroDefinition) 1847 clang::io::Emit32(Out, Writer.getMacroOffset(II)); 1848 1849 // Emit the declaration IDs in reverse order, because the 1850 // IdentifierResolver provides the declarations as they would be 1851 // visible (e.g., the function "stat" would come before the struct 1852 // "stat"), but IdentifierResolver::AddDeclToIdentifierChain() 1853 // adds declarations to the end of the list (so we need to see the 1854 // struct "status" before the function "status"). 1855 // Only emit declarations that aren't from a chained PCH, though. 1856 llvm::SmallVector<Decl *, 16> Decls(IdentifierResolver::begin(II), 1857 IdentifierResolver::end()); 1858 for (llvm::SmallVector<Decl *, 16>::reverse_iterator D = Decls.rbegin(), 1859 DEnd = Decls.rend(); 1860 D != DEnd; ++D) 1861 clang::io::Emit32(Out, Writer.getDeclID(*D)); 1862 } 1863}; 1864} // end anonymous namespace 1865 1866/// \brief Write the identifier table into the AST file. 1867/// 1868/// The identifier table consists of a blob containing string data 1869/// (the actual identifiers themselves) and a separate "offsets" index 1870/// that maps identifier IDs to locations within the blob. 1871void ASTWriter::WriteIdentifierTable(Preprocessor &PP) { 1872 using namespace llvm; 1873 1874 // Create and write out the blob that contains the identifier 1875 // strings. 1876 { 1877 OnDiskChainedHashTableGenerator<ASTIdentifierTableTrait> Generator; 1878 ASTIdentifierTableTrait Trait(*this, PP); 1879 1880 // Look for any identifiers that were named while processing the 1881 // headers, but are otherwise not needed. We add these to the hash 1882 // table to enable checking of the predefines buffer in the case 1883 // where the user adds new macro definitions when building the AST 1884 // file. 1885 for (IdentifierTable::iterator ID = PP.getIdentifierTable().begin(), 1886 IDEnd = PP.getIdentifierTable().end(); 1887 ID != IDEnd; ++ID) 1888 getIdentifierRef(ID->second); 1889 1890 // Create the on-disk hash table representation. We only store offsets 1891 // for identifiers that appear here for the first time. 1892 IdentifierOffsets.resize(NextIdentID - FirstIdentID); 1893 for (llvm::DenseMap<const IdentifierInfo *, IdentID>::iterator 1894 ID = IdentifierIDs.begin(), IDEnd = IdentifierIDs.end(); 1895 ID != IDEnd; ++ID) { 1896 assert(ID->first && "NULL identifier in identifier table"); 1897 if (!Chain || !ID->first->isFromAST()) 1898 Generator.insert(ID->first, ID->second, Trait); 1899 } 1900 1901 // Create the on-disk hash table in a buffer. 1902 llvm::SmallString<4096> IdentifierTable; 1903 uint32_t BucketOffset; 1904 { 1905 ASTIdentifierTableTrait Trait(*this, PP); 1906 llvm::raw_svector_ostream Out(IdentifierTable); 1907 // Make sure that no bucket is at offset 0 1908 clang::io::Emit32(Out, 0); 1909 BucketOffset = Generator.Emit(Out, Trait); 1910 } 1911 1912 // Create a blob abbreviation 1913 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1914 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_TABLE)); 1915 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); 1916 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1917 unsigned IDTableAbbrev = Stream.EmitAbbrev(Abbrev); 1918 1919 // Write the identifier table 1920 RecordData Record; 1921 Record.push_back(IDENTIFIER_TABLE); 1922 Record.push_back(BucketOffset); 1923 Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable.str()); 1924 } 1925 1926 // Write the offsets table for identifier IDs. 1927 BitCodeAbbrev *Abbrev = new BitCodeAbbrev(); 1928 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_OFFSET)); 1929 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of identifiers 1930 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 1931 unsigned IdentifierOffsetAbbrev = Stream.EmitAbbrev(Abbrev); 1932 1933 RecordData Record; 1934 Record.push_back(IDENTIFIER_OFFSET); 1935 Record.push_back(IdentifierOffsets.size()); 1936 Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record, 1937 (const char *)data(IdentifierOffsets), 1938 IdentifierOffsets.size() * sizeof(uint32_t)); 1939} 1940 1941//===----------------------------------------------------------------------===// 1942// DeclContext's Name Lookup Table Serialization 1943//===----------------------------------------------------------------------===// 1944 1945namespace { 1946// Trait used for the on-disk hash table used in the method pool. 1947class ASTDeclContextNameLookupTrait { 1948 ASTWriter &Writer; 1949 1950public: 1951 typedef DeclarationName key_type; 1952 typedef key_type key_type_ref; 1953 1954 typedef DeclContext::lookup_result data_type; 1955 typedef const data_type& data_type_ref; 1956 1957 explicit ASTDeclContextNameLookupTrait(ASTWriter &Writer) : Writer(Writer) { } 1958 1959 unsigned ComputeHash(DeclarationName Name) { 1960 llvm::FoldingSetNodeID ID; 1961 ID.AddInteger(Name.getNameKind()); 1962 1963 switch (Name.getNameKind()) { 1964 case DeclarationName::Identifier: 1965 ID.AddString(Name.getAsIdentifierInfo()->getName()); 1966 break; 1967 case DeclarationName::ObjCZeroArgSelector: 1968 case DeclarationName::ObjCOneArgSelector: 1969 case DeclarationName::ObjCMultiArgSelector: 1970 ID.AddInteger(serialization::ComputeHash(Name.getObjCSelector())); 1971 break; 1972 case DeclarationName::CXXConstructorName: 1973 case DeclarationName::CXXDestructorName: 1974 case DeclarationName::CXXConversionFunctionName: 1975 ID.AddInteger(Writer.GetOrCreateTypeID(Name.getCXXNameType())); 1976 break; 1977 case DeclarationName::CXXOperatorName: 1978 ID.AddInteger(Name.getCXXOverloadedOperator()); 1979 break; 1980 case DeclarationName::CXXLiteralOperatorName: 1981 ID.AddString(Name.getCXXLiteralIdentifier()->getName()); 1982 case DeclarationName::CXXUsingDirective: 1983 break; 1984 } 1985 1986 return ID.ComputeHash(); 1987 } 1988 1989 std::pair<unsigned,unsigned> 1990 EmitKeyDataLength(llvm::raw_ostream& Out, DeclarationName Name, 1991 data_type_ref Lookup) { 1992 unsigned KeyLen = 1; 1993 switch (Name.getNameKind()) { 1994 case DeclarationName::Identifier: 1995 case DeclarationName::ObjCZeroArgSelector: 1996 case DeclarationName::ObjCOneArgSelector: 1997 case DeclarationName::ObjCMultiArgSelector: 1998 case DeclarationName::CXXConstructorName: 1999 case DeclarationName::CXXDestructorName: 2000 case DeclarationName::CXXConversionFunctionName: 2001 case DeclarationName::CXXLiteralOperatorName: 2002 KeyLen += 4; 2003 break; 2004 case DeclarationName::CXXOperatorName: 2005 KeyLen += 1; 2006 break; 2007 case DeclarationName::CXXUsingDirective: 2008 break; 2009 } 2010 clang::io::Emit16(Out, KeyLen); 2011 2012 // 2 bytes for num of decls and 4 for each DeclID. 2013 unsigned DataLen = 2 + 4 * (Lookup.second - Lookup.first); 2014 clang::io::Emit16(Out, DataLen); 2015 2016 return std::make_pair(KeyLen, DataLen); 2017 } 2018 2019 void EmitKey(llvm::raw_ostream& Out, DeclarationName Name, unsigned) { 2020 using namespace clang::io; 2021 2022 assert(Name.getNameKind() < 0x100 && "Invalid name kind ?"); 2023 Emit8(Out, Name.getNameKind()); 2024 switch (Name.getNameKind()) { 2025 case DeclarationName::Identifier: 2026 Emit32(Out, Writer.getIdentifierRef(Name.getAsIdentifierInfo())); 2027 break; 2028 case DeclarationName::ObjCZeroArgSelector: 2029 case DeclarationName::ObjCOneArgSelector: 2030 case DeclarationName::ObjCMultiArgSelector: 2031 Emit32(Out, Writer.getSelectorRef(Name.getObjCSelector())); 2032 break; 2033 case DeclarationName::CXXConstructorName: 2034 case DeclarationName::CXXDestructorName: 2035 case DeclarationName::CXXConversionFunctionName: 2036 Emit32(Out, Writer.getTypeID(Name.getCXXNameType())); 2037 break; 2038 case DeclarationName::CXXOperatorName: 2039 assert(Name.getCXXOverloadedOperator() < 0x100 && "Invalid operator ?"); 2040 Emit8(Out, Name.getCXXOverloadedOperator()); 2041 break; 2042 case DeclarationName::CXXLiteralOperatorName: 2043 Emit32(Out, Writer.getIdentifierRef(Name.getCXXLiteralIdentifier())); 2044 break; 2045 case DeclarationName::CXXUsingDirective: 2046 break; 2047 } 2048 } 2049 2050 void EmitData(llvm::raw_ostream& Out, key_type_ref, 2051 data_type Lookup, unsigned DataLen) { 2052 uint64_t Start = Out.tell(); (void)Start; 2053 clang::io::Emit16(Out, Lookup.second - Lookup.first); 2054 for (; Lookup.first != Lookup.second; ++Lookup.first) 2055 clang::io::Emit32(Out, Writer.GetDeclRef(*Lookup.first)); 2056 2057 assert(Out.tell() - Start == DataLen && "Data length is wrong"); 2058 } 2059}; 2060} // end anonymous namespace 2061 2062/// \brief Write the block containing all of the declaration IDs 2063/// visible from the given DeclContext. 2064/// 2065/// \returns the offset of the DECL_CONTEXT_VISIBLE block within the 2066/// bitstream, or 0 if no block was written. 2067uint64_t ASTWriter::WriteDeclContextVisibleBlock(ASTContext &Context, 2068 DeclContext *DC) { 2069 if (DC->getPrimaryContext() != DC) 2070 return 0; 2071 2072 // Since there is no name lookup into functions or methods, don't bother to 2073 // build a visible-declarations table for these entities. 2074 if (DC->isFunctionOrMethod()) 2075 return 0; 2076 2077 // If not in C++, we perform name lookup for the translation unit via the 2078 // IdentifierInfo chains, don't bother to build a visible-declarations table. 2079 // FIXME: In C++ we need the visible declarations in order to "see" the 2080 // friend declarations, is there a way to do this without writing the table ? 2081 if (DC->isTranslationUnit() && !Context.getLangOptions().CPlusPlus) 2082 return 0; 2083 2084 // Force the DeclContext to build a its name-lookup table. 2085 if (DC->hasExternalVisibleStorage()) 2086 DC->MaterializeVisibleDeclsFromExternalStorage(); 2087 else 2088 DC->lookup(DeclarationName()); 2089 2090 // Serialize the contents of the mapping used for lookup. Note that, 2091 // although we have two very different code paths, the serialized 2092 // representation is the same for both cases: a declaration name, 2093 // followed by a size, followed by references to the visible 2094 // declarations that have that name. 2095 uint64_t Offset = Stream.GetCurrentBitNo(); 2096 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(DC->getLookupPtr()); 2097 if (!Map || Map->empty()) 2098 return 0; 2099 2100 OnDiskChainedHashTableGenerator<ASTDeclContextNameLookupTrait> Generator; 2101 ASTDeclContextNameLookupTrait Trait(*this); 2102 2103 // Create the on-disk hash table representation. 2104 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end(); 2105 D != DEnd; ++D) { 2106 DeclarationName Name = D->first; 2107 DeclContext::lookup_result Result = D->second.getLookupResult(); 2108 Generator.insert(Name, Result, Trait); 2109 } 2110 2111 // Create the on-disk hash table in a buffer. 2112 llvm::SmallString<4096> LookupTable; 2113 uint32_t BucketOffset; 2114 { 2115 llvm::raw_svector_ostream Out(LookupTable); 2116 // Make sure that no bucket is at offset 0 2117 clang::io::Emit32(Out, 0); 2118 BucketOffset = Generator.Emit(Out, Trait); 2119 } 2120 2121 // Write the lookup table 2122 RecordData Record; 2123 Record.push_back(DECL_CONTEXT_VISIBLE); 2124 Record.push_back(BucketOffset); 2125 Stream.EmitRecordWithBlob(DeclContextVisibleLookupAbbrev, Record, 2126 LookupTable.str()); 2127 2128 Stream.EmitRecord(DECL_CONTEXT_VISIBLE, Record); 2129 ++NumVisibleDeclContexts; 2130 return Offset; 2131} 2132 2133/// \brief Write an UPDATE_VISIBLE block for the given context. 2134/// 2135/// UPDATE_VISIBLE blocks contain the declarations that are added to an existing 2136/// DeclContext in a dependent AST file. As such, they only exist for the TU 2137/// (in C++) and for namespaces. 2138void ASTWriter::WriteDeclContextVisibleUpdate(const DeclContext *DC) { 2139 assert((DC->isTranslationUnit() || DC->isNamespace()) && 2140 "Only TU and namespaces should have visible decl updates."); 2141 2142 // Make the context build its lookup table, but don't make it load external 2143 // decls. 2144 DC->lookup(DeclarationName()); 2145 2146 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(DC->getLookupPtr()); 2147 if (!Map || Map->empty()) 2148 return; 2149 2150 OnDiskChainedHashTableGenerator<ASTDeclContextNameLookupTrait> Generator; 2151 ASTDeclContextNameLookupTrait Trait(*this); 2152 2153 // Create the hash table. 2154 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end(); 2155 D != DEnd; ++D) { 2156 DeclarationName Name = D->first; 2157 DeclContext::lookup_result Result = D->second.getLookupResult(); 2158 // For any name that appears in this table, the results are complete, i.e. 2159 // they overwrite results from previous PCHs. Merging is always a mess. 2160 Generator.insert(Name, Result, Trait); 2161 } 2162 2163 // Create the on-disk hash table in a buffer. 2164 llvm::SmallString<4096> LookupTable; 2165 uint32_t BucketOffset; 2166 { 2167 llvm::raw_svector_ostream Out(LookupTable); 2168 // Make sure that no bucket is at offset 0 2169 clang::io::Emit32(Out, 0); 2170 BucketOffset = Generator.Emit(Out, Trait); 2171 } 2172 2173 // Write the lookup table 2174 RecordData Record; 2175 Record.push_back(UPDATE_VISIBLE); 2176 Record.push_back(getDeclID(cast<Decl>(DC))); 2177 Record.push_back(BucketOffset); 2178 Stream.EmitRecordWithBlob(UpdateVisibleAbbrev, Record, LookupTable.str()); 2179} 2180 2181/// \brief Write ADDITIONAL_TEMPLATE_SPECIALIZATIONS blocks for all templates 2182/// that have new specializations in the current AST file. 2183void ASTWriter::WriteAdditionalTemplateSpecializations() { 2184 RecordData Record; 2185 for (AdditionalTemplateSpecializationsMap::iterator 2186 I = AdditionalTemplateSpecializations.begin(), 2187 E = AdditionalTemplateSpecializations.end(); 2188 I != E; ++I) { 2189 Record.clear(); 2190 Record.push_back(I->first); 2191 Record.insert(Record.end(), I->second.begin(), I->second.end()); 2192 Stream.EmitRecord(ADDITIONAL_TEMPLATE_SPECIALIZATIONS, Record); 2193 } 2194} 2195 2196//===----------------------------------------------------------------------===// 2197// General Serialization Routines 2198//===----------------------------------------------------------------------===// 2199 2200/// \brief Write a record containing the given attributes. 2201void ASTWriter::WriteAttributes(const AttrVec &Attrs, RecordData &Record) { 2202 Record.push_back(Attrs.size()); 2203 for (AttrVec::const_iterator i = Attrs.begin(), e = Attrs.end(); i != e; ++i){ 2204 const Attr * A = *i; 2205 Record.push_back(A->getKind()); // FIXME: stable encoding, target attrs 2206 AddSourceLocation(A->getLocation(), Record); 2207 Record.push_back(A->isInherited()); 2208 2209#include "clang/Serialization/AttrPCHWrite.inc" 2210 2211 } 2212} 2213 2214void ASTWriter::AddString(llvm::StringRef Str, RecordData &Record) { 2215 Record.push_back(Str.size()); 2216 Record.insert(Record.end(), Str.begin(), Str.end()); 2217} 2218 2219/// \brief Note that the identifier II occurs at the given offset 2220/// within the identifier table. 2221void ASTWriter::SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset) { 2222 IdentID ID = IdentifierIDs[II]; 2223 // Only store offsets new to this AST file. Other identifier names are looked 2224 // up earlier in the chain and thus don't need an offset. 2225 if (ID >= FirstIdentID) 2226 IdentifierOffsets[ID - FirstIdentID] = Offset; 2227} 2228 2229/// \brief Note that the selector Sel occurs at the given offset 2230/// within the method pool/selector table. 2231void ASTWriter::SetSelectorOffset(Selector Sel, uint32_t Offset) { 2232 unsigned ID = SelectorIDs[Sel]; 2233 assert(ID && "Unknown selector"); 2234 // Don't record offsets for selectors that are also available in a different 2235 // file. 2236 if (ID < FirstSelectorID) 2237 return; 2238 SelectorOffsets[ID - FirstSelectorID] = Offset; 2239} 2240 2241ASTWriter::ASTWriter(llvm::BitstreamWriter &Stream) 2242 : Stream(Stream), Chain(0), FirstDeclID(1), NextDeclID(FirstDeclID), 2243 FirstTypeID(NUM_PREDEF_TYPE_IDS), NextTypeID(FirstTypeID), 2244 FirstIdentID(1), NextIdentID(FirstIdentID), FirstSelectorID(1), 2245 NextSelectorID(FirstSelectorID), FirstMacroID(1), NextMacroID(FirstMacroID), 2246 CollectedStmts(&StmtsToEmit), 2247 NumStatements(0), NumMacros(0), NumLexicalDeclContexts(0), 2248 NumVisibleDeclContexts(0) { 2249} 2250 2251void ASTWriter::WriteAST(Sema &SemaRef, MemorizeStatCalls *StatCalls, 2252 const char *isysroot) { 2253 // Emit the file header. 2254 Stream.Emit((unsigned)'C', 8); 2255 Stream.Emit((unsigned)'P', 8); 2256 Stream.Emit((unsigned)'C', 8); 2257 Stream.Emit((unsigned)'H', 8); 2258 2259 WriteBlockInfoBlock(); 2260 2261 if (Chain) 2262 WriteASTChain(SemaRef, StatCalls, isysroot); 2263 else 2264 WriteASTCore(SemaRef, StatCalls, isysroot); 2265} 2266 2267void ASTWriter::WriteASTCore(Sema &SemaRef, MemorizeStatCalls *StatCalls, 2268 const char *isysroot) { 2269 using namespace llvm; 2270 2271 ASTContext &Context = SemaRef.Context; 2272 Preprocessor &PP = SemaRef.PP; 2273 2274 // The translation unit is the first declaration we'll emit. 2275 DeclIDs[Context.getTranslationUnitDecl()] = 1; 2276 ++NextDeclID; 2277 DeclTypesToEmit.push(Context.getTranslationUnitDecl()); 2278 2279 // Make sure that we emit IdentifierInfos (and any attached 2280 // declarations) for builtins. 2281 { 2282 IdentifierTable &Table = PP.getIdentifierTable(); 2283 llvm::SmallVector<const char *, 32> BuiltinNames; 2284 Context.BuiltinInfo.GetBuiltinNames(BuiltinNames, 2285 Context.getLangOptions().NoBuiltin); 2286 for (unsigned I = 0, N = BuiltinNames.size(); I != N; ++I) 2287 getIdentifierRef(&Table.get(BuiltinNames[I])); 2288 } 2289 2290 // Build a record containing all of the tentative definitions in this file, in 2291 // TentativeDefinitions order. Generally, this record will be empty for 2292 // headers. 2293 RecordData TentativeDefinitions; 2294 for (unsigned i = 0, e = SemaRef.TentativeDefinitions.size(); i != e; ++i) { 2295 AddDeclRef(SemaRef.TentativeDefinitions[i], TentativeDefinitions); 2296 } 2297 2298 // Build a record containing all of the file scoped decls in this file. 2299 RecordData UnusedFileScopedDecls; 2300 for (unsigned i=0, e = SemaRef.UnusedFileScopedDecls.size(); i !=e; ++i) 2301 AddDeclRef(SemaRef.UnusedFileScopedDecls[i], UnusedFileScopedDecls); 2302 2303 RecordData WeakUndeclaredIdentifiers; 2304 if (!SemaRef.WeakUndeclaredIdentifiers.empty()) { 2305 WeakUndeclaredIdentifiers.push_back( 2306 SemaRef.WeakUndeclaredIdentifiers.size()); 2307 for (llvm::DenseMap<IdentifierInfo*,Sema::WeakInfo>::iterator 2308 I = SemaRef.WeakUndeclaredIdentifiers.begin(), 2309 E = SemaRef.WeakUndeclaredIdentifiers.end(); I != E; ++I) { 2310 AddIdentifierRef(I->first, WeakUndeclaredIdentifiers); 2311 AddIdentifierRef(I->second.getAlias(), WeakUndeclaredIdentifiers); 2312 AddSourceLocation(I->second.getLocation(), WeakUndeclaredIdentifiers); 2313 WeakUndeclaredIdentifiers.push_back(I->second.getUsed()); 2314 } 2315 } 2316 2317 // Build a record containing all of the locally-scoped external 2318 // declarations in this header file. Generally, this record will be 2319 // empty. 2320 RecordData LocallyScopedExternalDecls; 2321 // FIXME: This is filling in the AST file in densemap order which is 2322 // nondeterminstic! 2323 for (llvm::DenseMap<DeclarationName, NamedDecl *>::iterator 2324 TD = SemaRef.LocallyScopedExternalDecls.begin(), 2325 TDEnd = SemaRef.LocallyScopedExternalDecls.end(); 2326 TD != TDEnd; ++TD) 2327 AddDeclRef(TD->second, LocallyScopedExternalDecls); 2328 2329 // Build a record containing all of the ext_vector declarations. 2330 RecordData ExtVectorDecls; 2331 for (unsigned I = 0, N = SemaRef.ExtVectorDecls.size(); I != N; ++I) 2332 AddDeclRef(SemaRef.ExtVectorDecls[I], ExtVectorDecls); 2333 2334 // Build a record containing all of the VTable uses information. 2335 RecordData VTableUses; 2336 if (!SemaRef.VTableUses.empty()) { 2337 VTableUses.push_back(SemaRef.VTableUses.size()); 2338 for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) { 2339 AddDeclRef(SemaRef.VTableUses[I].first, VTableUses); 2340 AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses); 2341 VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]); 2342 } 2343 } 2344 2345 // Build a record containing all of dynamic classes declarations. 2346 RecordData DynamicClasses; 2347 for (unsigned I = 0, N = SemaRef.DynamicClasses.size(); I != N; ++I) 2348 AddDeclRef(SemaRef.DynamicClasses[I], DynamicClasses); 2349 2350 // Build a record containing all of pending implicit instantiations. 2351 RecordData PendingInstantiations; 2352 for (std::deque<Sema::PendingImplicitInstantiation>::iterator 2353 I = SemaRef.PendingInstantiations.begin(), 2354 N = SemaRef.PendingInstantiations.end(); I != N; ++I) { 2355 AddDeclRef(I->first, PendingInstantiations); 2356 AddSourceLocation(I->second, PendingInstantiations); 2357 } 2358 assert(SemaRef.PendingLocalImplicitInstantiations.empty() && 2359 "There are local ones at end of translation unit!"); 2360 2361 // Build a record containing some declaration references. 2362 RecordData SemaDeclRefs; 2363 if (SemaRef.StdNamespace || SemaRef.StdBadAlloc) { 2364 AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs); 2365 AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs); 2366 } 2367 2368 // Write the remaining AST contents. 2369 RecordData Record; 2370 Stream.EnterSubblock(AST_BLOCK_ID, 5); 2371 WriteMetadata(Context, isysroot); 2372 WriteLanguageOptions(Context.getLangOptions()); 2373 if (StatCalls && !isysroot) 2374 WriteStatCache(*StatCalls); 2375 WriteSourceManagerBlock(Context.getSourceManager(), PP, isysroot); 2376 // Write the record of special types. 2377 Record.clear(); 2378 2379 AddTypeRef(Context.getBuiltinVaListType(), Record); 2380 AddTypeRef(Context.getObjCIdType(), Record); 2381 AddTypeRef(Context.getObjCSelType(), Record); 2382 AddTypeRef(Context.getObjCProtoType(), Record); 2383 AddTypeRef(Context.getObjCClassType(), Record); 2384 AddTypeRef(Context.getRawCFConstantStringType(), Record); 2385 AddTypeRef(Context.getRawObjCFastEnumerationStateType(), Record); 2386 AddTypeRef(Context.getFILEType(), Record); 2387 AddTypeRef(Context.getjmp_bufType(), Record); 2388 AddTypeRef(Context.getsigjmp_bufType(), Record); 2389 AddTypeRef(Context.ObjCIdRedefinitionType, Record); 2390 AddTypeRef(Context.ObjCClassRedefinitionType, Record); 2391 AddTypeRef(Context.getRawBlockdescriptorType(), Record); 2392 AddTypeRef(Context.getRawBlockdescriptorExtendedType(), Record); 2393 AddTypeRef(Context.ObjCSelRedefinitionType, Record); 2394 AddTypeRef(Context.getRawNSConstantStringType(), Record); 2395 Record.push_back(Context.isInt128Installed()); 2396 Stream.EmitRecord(SPECIAL_TYPES, Record); 2397 2398 // Keep writing types and declarations until all types and 2399 // declarations have been written. 2400 Stream.EnterSubblock(DECLTYPES_BLOCK_ID, 3); 2401 WriteDeclsBlockAbbrevs(); 2402 while (!DeclTypesToEmit.empty()) { 2403 DeclOrType DOT = DeclTypesToEmit.front(); 2404 DeclTypesToEmit.pop(); 2405 if (DOT.isType()) 2406 WriteType(DOT.getType()); 2407 else 2408 WriteDecl(Context, DOT.getDecl()); 2409 } 2410 Stream.ExitBlock(); 2411 2412 WritePreprocessor(PP); 2413 WriteSelectors(SemaRef); 2414 WriteReferencedSelectorsPool(SemaRef); 2415 WriteIdentifierTable(PP); 2416 2417 WriteTypeDeclOffsets(); 2418 2419 // Write the record containing external, unnamed definitions. 2420 if (!ExternalDefinitions.empty()) 2421 Stream.EmitRecord(EXTERNAL_DEFINITIONS, ExternalDefinitions); 2422 2423 // Write the record containing tentative definitions. 2424 if (!TentativeDefinitions.empty()) 2425 Stream.EmitRecord(TENTATIVE_DEFINITIONS, TentativeDefinitions); 2426 2427 // Write the record containing unused file scoped decls. 2428 if (!UnusedFileScopedDecls.empty()) 2429 Stream.EmitRecord(UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls); 2430 2431 // Write the record containing weak undeclared identifiers. 2432 if (!WeakUndeclaredIdentifiers.empty()) 2433 Stream.EmitRecord(WEAK_UNDECLARED_IDENTIFIERS, 2434 WeakUndeclaredIdentifiers); 2435 2436 // Write the record containing locally-scoped external definitions. 2437 if (!LocallyScopedExternalDecls.empty()) 2438 Stream.EmitRecord(LOCALLY_SCOPED_EXTERNAL_DECLS, 2439 LocallyScopedExternalDecls); 2440 2441 // Write the record containing ext_vector type names. 2442 if (!ExtVectorDecls.empty()) 2443 Stream.EmitRecord(EXT_VECTOR_DECLS, ExtVectorDecls); 2444 2445 // Write the record containing VTable uses information. 2446 if (!VTableUses.empty()) 2447 Stream.EmitRecord(VTABLE_USES, VTableUses); 2448 2449 // Write the record containing dynamic classes declarations. 2450 if (!DynamicClasses.empty()) 2451 Stream.EmitRecord(DYNAMIC_CLASSES, DynamicClasses); 2452 2453 // Write the record containing pending implicit instantiations. 2454 if (!PendingInstantiations.empty()) 2455 Stream.EmitRecord(PENDING_IMPLICIT_INSTANTIATIONS, PendingInstantiations); 2456 2457 // Write the record containing declaration references of Sema. 2458 if (!SemaDeclRefs.empty()) 2459 Stream.EmitRecord(SEMA_DECL_REFS, SemaDeclRefs); 2460 2461 // Some simple statistics 2462 Record.clear(); 2463 Record.push_back(NumStatements); 2464 Record.push_back(NumMacros); 2465 Record.push_back(NumLexicalDeclContexts); 2466 Record.push_back(NumVisibleDeclContexts); 2467 Stream.EmitRecord(STATISTICS, Record); 2468 Stream.ExitBlock(); 2469} 2470 2471void ASTWriter::WriteASTChain(Sema &SemaRef, MemorizeStatCalls *StatCalls, 2472 const char *isysroot) { 2473 using namespace llvm; 2474 2475 FirstDeclID += Chain->getTotalNumDecls(); 2476 FirstTypeID += Chain->getTotalNumTypes(); 2477 FirstIdentID += Chain->getTotalNumIdentifiers(); 2478 FirstSelectorID += Chain->getTotalNumSelectors(); 2479 FirstMacroID += Chain->getTotalNumMacroDefinitions(); 2480 NextDeclID = FirstDeclID; 2481 NextTypeID = FirstTypeID; 2482 NextIdentID = FirstIdentID; 2483 NextSelectorID = FirstSelectorID; 2484 NextMacroID = FirstMacroID; 2485 2486 ASTContext &Context = SemaRef.Context; 2487 Preprocessor &PP = SemaRef.PP; 2488 2489 RecordData Record; 2490 Stream.EnterSubblock(AST_BLOCK_ID, 5); 2491 WriteMetadata(Context, isysroot); 2492 if (StatCalls && !isysroot) 2493 WriteStatCache(*StatCalls); 2494 // FIXME: Source manager block should only write new stuff, which could be 2495 // done by tracking the largest ID in the chain 2496 WriteSourceManagerBlock(Context.getSourceManager(), PP, isysroot); 2497 2498 // The special types are in the chained PCH. 2499 2500 // We don't start with the translation unit, but with its decls that 2501 // don't come from the chained PCH. 2502 const TranslationUnitDecl *TU = Context.getTranslationUnitDecl(); 2503 llvm::SmallVector<KindDeclIDPair, 64> NewGlobalDecls; 2504 for (DeclContext::decl_iterator I = TU->noload_decls_begin(), 2505 E = TU->noload_decls_end(); 2506 I != E; ++I) { 2507 if ((*I)->getPCHLevel() == 0) 2508 NewGlobalDecls.push_back(std::make_pair((*I)->getKind(), GetDeclRef(*I))); 2509 else if ((*I)->isChangedSinceDeserialization()) 2510 (void)GetDeclRef(*I); // Make sure it's written, but don't record it. 2511 } 2512 // We also need to write a lexical updates block for the TU. 2513 llvm::BitCodeAbbrev *Abv = new llvm::BitCodeAbbrev(); 2514 Abv->Add(llvm::BitCodeAbbrevOp(TU_UPDATE_LEXICAL)); 2515 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob)); 2516 unsigned TuUpdateLexicalAbbrev = Stream.EmitAbbrev(Abv); 2517 Record.clear(); 2518 Record.push_back(TU_UPDATE_LEXICAL); 2519 Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record, 2520 reinterpret_cast<const char*>(NewGlobalDecls.data()), 2521 NewGlobalDecls.size() * sizeof(KindDeclIDPair)); 2522 // And in C++, a visible updates block for the TU. 2523 if (Context.getLangOptions().CPlusPlus) { 2524 Abv = new llvm::BitCodeAbbrev(); 2525 Abv->Add(llvm::BitCodeAbbrevOp(UPDATE_VISIBLE)); 2526 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6)); 2527 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Fixed, 32)); 2528 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob)); 2529 UpdateVisibleAbbrev = Stream.EmitAbbrev(Abv); 2530 WriteDeclContextVisibleUpdate(TU); 2531 } 2532 2533 // Build a record containing all of the new tentative definitions in this 2534 // file, in TentativeDefinitions order. 2535 RecordData TentativeDefinitions; 2536 for (unsigned i = 0, e = SemaRef.TentativeDefinitions.size(); i != e; ++i) { 2537 if (SemaRef.TentativeDefinitions[i]->getPCHLevel() == 0) 2538 AddDeclRef(SemaRef.TentativeDefinitions[i], TentativeDefinitions); 2539 } 2540 2541 // Build a record containing all of the file scoped decls in this file. 2542 RecordData UnusedFileScopedDecls; 2543 for (unsigned i=0, e = SemaRef.UnusedFileScopedDecls.size(); i !=e; ++i) { 2544 if (SemaRef.UnusedFileScopedDecls[i]->getPCHLevel() == 0) 2545 AddDeclRef(SemaRef.UnusedFileScopedDecls[i], UnusedFileScopedDecls); 2546 } 2547 2548 // We write the entire table, overwriting the tables from the chain. 2549 RecordData WeakUndeclaredIdentifiers; 2550 if (!SemaRef.WeakUndeclaredIdentifiers.empty()) { 2551 WeakUndeclaredIdentifiers.push_back( 2552 SemaRef.WeakUndeclaredIdentifiers.size()); 2553 for (llvm::DenseMap<IdentifierInfo*,Sema::WeakInfo>::iterator 2554 I = SemaRef.WeakUndeclaredIdentifiers.begin(), 2555 E = SemaRef.WeakUndeclaredIdentifiers.end(); I != E; ++I) { 2556 AddIdentifierRef(I->first, WeakUndeclaredIdentifiers); 2557 AddIdentifierRef(I->second.getAlias(), WeakUndeclaredIdentifiers); 2558 AddSourceLocation(I->second.getLocation(), WeakUndeclaredIdentifiers); 2559 WeakUndeclaredIdentifiers.push_back(I->second.getUsed()); 2560 } 2561 } 2562 2563 // Build a record containing all of the locally-scoped external 2564 // declarations in this header file. Generally, this record will be 2565 // empty. 2566 RecordData LocallyScopedExternalDecls; 2567 // FIXME: This is filling in the AST file in densemap order which is 2568 // nondeterminstic! 2569 for (llvm::DenseMap<DeclarationName, NamedDecl *>::iterator 2570 TD = SemaRef.LocallyScopedExternalDecls.begin(), 2571 TDEnd = SemaRef.LocallyScopedExternalDecls.end(); 2572 TD != TDEnd; ++TD) { 2573 if (TD->second->getPCHLevel() == 0) 2574 AddDeclRef(TD->second, LocallyScopedExternalDecls); 2575 } 2576 2577 // Build a record containing all of the ext_vector declarations. 2578 RecordData ExtVectorDecls; 2579 for (unsigned I = 0, N = SemaRef.ExtVectorDecls.size(); I != N; ++I) { 2580 if (SemaRef.ExtVectorDecls[I]->getPCHLevel() == 0) 2581 AddDeclRef(SemaRef.ExtVectorDecls[I], ExtVectorDecls); 2582 } 2583 2584 // Build a record containing all of the VTable uses information. 2585 // We write everything here, because it's too hard to determine whether 2586 // a use is new to this part. 2587 RecordData VTableUses; 2588 if (!SemaRef.VTableUses.empty()) { 2589 VTableUses.push_back(SemaRef.VTableUses.size()); 2590 for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) { 2591 AddDeclRef(SemaRef.VTableUses[I].first, VTableUses); 2592 AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses); 2593 VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]); 2594 } 2595 } 2596 2597 // Build a record containing all of dynamic classes declarations. 2598 RecordData DynamicClasses; 2599 for (unsigned I = 0, N = SemaRef.DynamicClasses.size(); I != N; ++I) 2600 if (SemaRef.DynamicClasses[I]->getPCHLevel() == 0) 2601 AddDeclRef(SemaRef.DynamicClasses[I], DynamicClasses); 2602 2603 // Build a record containing all of pending implicit instantiations. 2604 RecordData PendingInstantiations; 2605 for (std::deque<Sema::PendingImplicitInstantiation>::iterator 2606 I = SemaRef.PendingInstantiations.begin(), 2607 N = SemaRef.PendingInstantiations.end(); I != N; ++I) { 2608 if (I->first->getPCHLevel() == 0) { 2609 AddDeclRef(I->first, PendingInstantiations); 2610 AddSourceLocation(I->second, PendingInstantiations); 2611 } 2612 } 2613 assert(SemaRef.PendingLocalImplicitInstantiations.empty() && 2614 "There are local ones at end of translation unit!"); 2615 2616 // Build a record containing some declaration references. 2617 // It's not worth the effort to avoid duplication here. 2618 RecordData SemaDeclRefs; 2619 if (SemaRef.StdNamespace || SemaRef.StdBadAlloc) { 2620 AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs); 2621 AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs); 2622 } 2623 2624 Stream.EnterSubblock(DECLTYPES_BLOCK_ID, 3); 2625 WriteDeclsBlockAbbrevs(); 2626 while (!DeclTypesToEmit.empty()) { 2627 DeclOrType DOT = DeclTypesToEmit.front(); 2628 DeclTypesToEmit.pop(); 2629 if (DOT.isType()) 2630 WriteType(DOT.getType()); 2631 else 2632 WriteDecl(Context, DOT.getDecl()); 2633 } 2634 Stream.ExitBlock(); 2635 2636 WritePreprocessor(PP); 2637 WriteSelectors(SemaRef); 2638 WriteReferencedSelectorsPool(SemaRef); 2639 WriteIdentifierTable(PP); 2640 WriteTypeDeclOffsets(); 2641 2642 /// Build a record containing first declarations from a chained PCH and the 2643 /// most recent declarations in this AST that they point to. 2644 RecordData FirstLatestDeclIDs; 2645 for (FirstLatestDeclMap::iterator 2646 I = FirstLatestDecls.begin(), E = FirstLatestDecls.end(); I != E; ++I) { 2647 assert(I->first->getPCHLevel() > I->second->getPCHLevel() && 2648 "Expected first & second to be in different PCHs"); 2649 AddDeclRef(I->first, FirstLatestDeclIDs); 2650 AddDeclRef(I->second, FirstLatestDeclIDs); 2651 } 2652 if (!FirstLatestDeclIDs.empty()) 2653 Stream.EmitRecord(REDECLS_UPDATE_LATEST, FirstLatestDeclIDs); 2654 2655 // Write the record containing external, unnamed definitions. 2656 if (!ExternalDefinitions.empty()) 2657 Stream.EmitRecord(EXTERNAL_DEFINITIONS, ExternalDefinitions); 2658 2659 // Write the record containing tentative definitions. 2660 if (!TentativeDefinitions.empty()) 2661 Stream.EmitRecord(TENTATIVE_DEFINITIONS, TentativeDefinitions); 2662 2663 // Write the record containing unused file scoped decls. 2664 if (!UnusedFileScopedDecls.empty()) 2665 Stream.EmitRecord(UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls); 2666 2667 // Write the record containing weak undeclared identifiers. 2668 if (!WeakUndeclaredIdentifiers.empty()) 2669 Stream.EmitRecord(WEAK_UNDECLARED_IDENTIFIERS, 2670 WeakUndeclaredIdentifiers); 2671 2672 // Write the record containing locally-scoped external definitions. 2673 if (!LocallyScopedExternalDecls.empty()) 2674 Stream.EmitRecord(LOCALLY_SCOPED_EXTERNAL_DECLS, 2675 LocallyScopedExternalDecls); 2676 2677 // Write the record containing ext_vector type names. 2678 if (!ExtVectorDecls.empty()) 2679 Stream.EmitRecord(EXT_VECTOR_DECLS, ExtVectorDecls); 2680 2681 // Write the record containing VTable uses information. 2682 if (!VTableUses.empty()) 2683 Stream.EmitRecord(VTABLE_USES, VTableUses); 2684 2685 // Write the record containing dynamic classes declarations. 2686 if (!DynamicClasses.empty()) 2687 Stream.EmitRecord(DYNAMIC_CLASSES, DynamicClasses); 2688 2689 // Write the record containing pending implicit instantiations. 2690 if (!PendingInstantiations.empty()) 2691 Stream.EmitRecord(PENDING_IMPLICIT_INSTANTIATIONS, PendingInstantiations); 2692 2693 // Write the record containing declaration references of Sema. 2694 if (!SemaDeclRefs.empty()) 2695 Stream.EmitRecord(SEMA_DECL_REFS, SemaDeclRefs); 2696 2697 // Write the updates to C++ namespaces. 2698 for (llvm::SmallPtrSet<const NamespaceDecl *, 16>::iterator 2699 I = UpdatedNamespaces.begin(), 2700 E = UpdatedNamespaces.end(); 2701 I != E; ++I) 2702 WriteDeclContextVisibleUpdate(*I); 2703 2704 // Write the updates to C++ template specialization lists. 2705 if (!AdditionalTemplateSpecializations.empty()) 2706 WriteAdditionalTemplateSpecializations(); 2707 2708 Record.clear(); 2709 Record.push_back(NumStatements); 2710 Record.push_back(NumMacros); 2711 Record.push_back(NumLexicalDeclContexts); 2712 Record.push_back(NumVisibleDeclContexts); 2713 WriteDeclUpdateBlock(); 2714 Stream.EmitRecord(STATISTICS, Record); 2715 Stream.ExitBlock(); 2716} 2717 2718void ASTWriter::WriteDeclUpdateBlock() { 2719 if (ReplacedDecls.empty()) 2720 return; 2721 2722 RecordData Record; 2723 for (llvm::SmallVector<std::pair<DeclID, uint64_t>, 16>::iterator 2724 I = ReplacedDecls.begin(), E = ReplacedDecls.end(); I != E; ++I) { 2725 Record.push_back(I->first); 2726 Record.push_back(I->second); 2727 } 2728 Stream.EmitRecord(DECL_REPLACEMENTS, Record); 2729} 2730 2731void ASTWriter::AddSourceLocation(SourceLocation Loc, RecordData &Record) { 2732 Record.push_back(Loc.getRawEncoding()); 2733} 2734 2735void ASTWriter::AddSourceRange(SourceRange Range, RecordData &Record) { 2736 AddSourceLocation(Range.getBegin(), Record); 2737 AddSourceLocation(Range.getEnd(), Record); 2738} 2739 2740void ASTWriter::AddAPInt(const llvm::APInt &Value, RecordData &Record) { 2741 Record.push_back(Value.getBitWidth()); 2742 const uint64_t *Words = Value.getRawData(); 2743 Record.append(Words, Words + Value.getNumWords()); 2744} 2745 2746void ASTWriter::AddAPSInt(const llvm::APSInt &Value, RecordData &Record) { 2747 Record.push_back(Value.isUnsigned()); 2748 AddAPInt(Value, Record); 2749} 2750 2751void ASTWriter::AddAPFloat(const llvm::APFloat &Value, RecordData &Record) { 2752 AddAPInt(Value.bitcastToAPInt(), Record); 2753} 2754 2755void ASTWriter::AddIdentifierRef(const IdentifierInfo *II, RecordData &Record) { 2756 Record.push_back(getIdentifierRef(II)); 2757} 2758 2759IdentID ASTWriter::getIdentifierRef(const IdentifierInfo *II) { 2760 if (II == 0) 2761 return 0; 2762 2763 IdentID &ID = IdentifierIDs[II]; 2764 if (ID == 0) 2765 ID = NextIdentID++; 2766 return ID; 2767} 2768 2769MacroID ASTWriter::getMacroDefinitionID(MacroDefinition *MD) { 2770 if (MD == 0) 2771 return 0; 2772 2773 MacroID &ID = MacroDefinitions[MD]; 2774 if (ID == 0) 2775 ID = NextMacroID++; 2776 return ID; 2777} 2778 2779void ASTWriter::AddSelectorRef(const Selector SelRef, RecordData &Record) { 2780 Record.push_back(getSelectorRef(SelRef)); 2781} 2782 2783SelectorID ASTWriter::getSelectorRef(Selector Sel) { 2784 if (Sel.getAsOpaquePtr() == 0) { 2785 return 0; 2786 } 2787 2788 SelectorID &SID = SelectorIDs[Sel]; 2789 if (SID == 0 && Chain) { 2790 // This might trigger a ReadSelector callback, which will set the ID for 2791 // this selector. 2792 Chain->LoadSelector(Sel); 2793 } 2794 if (SID == 0) { 2795 SID = NextSelectorID++; 2796 } 2797 return SID; 2798} 2799 2800void ASTWriter::AddCXXTemporary(const CXXTemporary *Temp, RecordData &Record) { 2801 AddDeclRef(Temp->getDestructor(), Record); 2802} 2803 2804void ASTWriter::AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind, 2805 const TemplateArgumentLocInfo &Arg, 2806 RecordData &Record) { 2807 switch (Kind) { 2808 case TemplateArgument::Expression: 2809 AddStmt(Arg.getAsExpr()); 2810 break; 2811 case TemplateArgument::Type: 2812 AddTypeSourceInfo(Arg.getAsTypeSourceInfo(), Record); 2813 break; 2814 case TemplateArgument::Template: 2815 AddSourceRange(Arg.getTemplateQualifierRange(), Record); 2816 AddSourceLocation(Arg.getTemplateNameLoc(), Record); 2817 break; 2818 case TemplateArgument::Null: 2819 case TemplateArgument::Integral: 2820 case TemplateArgument::Declaration: 2821 case TemplateArgument::Pack: 2822 break; 2823 } 2824} 2825 2826void ASTWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg, 2827 RecordData &Record) { 2828 AddTemplateArgument(Arg.getArgument(), Record); 2829 2830 if (Arg.getArgument().getKind() == TemplateArgument::Expression) { 2831 bool InfoHasSameExpr 2832 = Arg.getArgument().getAsExpr() == Arg.getLocInfo().getAsExpr(); 2833 Record.push_back(InfoHasSameExpr); 2834 if (InfoHasSameExpr) 2835 return; // Avoid storing the same expr twice. 2836 } 2837 AddTemplateArgumentLocInfo(Arg.getArgument().getKind(), Arg.getLocInfo(), 2838 Record); 2839} 2840 2841void ASTWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo, RecordData &Record) { 2842 if (TInfo == 0) { 2843 AddTypeRef(QualType(), Record); 2844 return; 2845 } 2846 2847 AddTypeRef(TInfo->getType(), Record); 2848 TypeLocWriter TLW(*this, Record); 2849 for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc()) 2850 TLW.Visit(TL); 2851} 2852 2853void ASTWriter::AddTypeRef(QualType T, RecordData &Record) { 2854 Record.push_back(GetOrCreateTypeID(T)); 2855} 2856 2857TypeID ASTWriter::GetOrCreateTypeID(QualType T) { 2858 return MakeTypeID(T, 2859 std::bind1st(std::mem_fun(&ASTWriter::GetOrCreateTypeIdx), this)); 2860} 2861 2862TypeID ASTWriter::getTypeID(QualType T) const { 2863 return MakeTypeID(T, 2864 std::bind1st(std::mem_fun(&ASTWriter::getTypeIdx), this)); 2865} 2866 2867TypeIdx ASTWriter::GetOrCreateTypeIdx(QualType T) { 2868 if (T.isNull()) 2869 return TypeIdx(); 2870 assert(!T.getLocalFastQualifiers()); 2871 2872 TypeIdx &Idx = TypeIdxs[T]; 2873 if (Idx.getIndex() == 0) { 2874 // We haven't seen this type before. Assign it a new ID and put it 2875 // into the queue of types to emit. 2876 Idx = TypeIdx(NextTypeID++); 2877 DeclTypesToEmit.push(T); 2878 } 2879 return Idx; 2880} 2881 2882TypeIdx ASTWriter::getTypeIdx(QualType T) const { 2883 if (T.isNull()) 2884 return TypeIdx(); 2885 assert(!T.getLocalFastQualifiers()); 2886 2887 TypeIdxMap::const_iterator I = TypeIdxs.find(T); 2888 assert(I != TypeIdxs.end() && "Type not emitted!"); 2889 return I->second; 2890} 2891 2892void ASTWriter::AddDeclRef(const Decl *D, RecordData &Record) { 2893 Record.push_back(GetDeclRef(D)); 2894} 2895 2896DeclID ASTWriter::GetDeclRef(const Decl *D) { 2897 if (D == 0) { 2898 return 0; 2899 } 2900 assert(!(reinterpret_cast<uintptr_t>(D) & 0x01) && "Invalid decl pointer"); 2901 DeclID &ID = DeclIDs[D]; 2902 if (ID == 0) { 2903 // We haven't seen this declaration before. Give it a new ID and 2904 // enqueue it in the list of declarations to emit. 2905 ID = NextDeclID++; 2906 DeclTypesToEmit.push(const_cast<Decl *>(D)); 2907 } else if (ID < FirstDeclID && D->isChangedSinceDeserialization()) { 2908 // We don't add it to the replacement collection here, because we don't 2909 // have the offset yet. 2910 DeclTypesToEmit.push(const_cast<Decl *>(D)); 2911 // Reset the flag, so that we don't add this decl multiple times. 2912 const_cast<Decl *>(D)->setChangedSinceDeserialization(false); 2913 } 2914 2915 return ID; 2916} 2917 2918DeclID ASTWriter::getDeclID(const Decl *D) { 2919 if (D == 0) 2920 return 0; 2921 2922 assert(DeclIDs.find(D) != DeclIDs.end() && "Declaration not emitted!"); 2923 return DeclIDs[D]; 2924} 2925 2926void ASTWriter::AddDeclarationName(DeclarationName Name, RecordData &Record) { 2927 // FIXME: Emit a stable enum for NameKind. 0 = Identifier etc. 2928 Record.push_back(Name.getNameKind()); 2929 switch (Name.getNameKind()) { 2930 case DeclarationName::Identifier: 2931 AddIdentifierRef(Name.getAsIdentifierInfo(), Record); 2932 break; 2933 2934 case DeclarationName::ObjCZeroArgSelector: 2935 case DeclarationName::ObjCOneArgSelector: 2936 case DeclarationName::ObjCMultiArgSelector: 2937 AddSelectorRef(Name.getObjCSelector(), Record); 2938 break; 2939 2940 case DeclarationName::CXXConstructorName: 2941 case DeclarationName::CXXDestructorName: 2942 case DeclarationName::CXXConversionFunctionName: 2943 AddTypeRef(Name.getCXXNameType(), Record); 2944 break; 2945 2946 case DeclarationName::CXXOperatorName: 2947 Record.push_back(Name.getCXXOverloadedOperator()); 2948 break; 2949 2950 case DeclarationName::CXXLiteralOperatorName: 2951 AddIdentifierRef(Name.getCXXLiteralIdentifier(), Record); 2952 break; 2953 2954 case DeclarationName::CXXUsingDirective: 2955 // No extra data to emit 2956 break; 2957 } 2958} 2959 2960void ASTWriter::AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc, 2961 DeclarationName Name, RecordData &Record) { 2962 switch (Name.getNameKind()) { 2963 case DeclarationName::CXXConstructorName: 2964 case DeclarationName::CXXDestructorName: 2965 case DeclarationName::CXXConversionFunctionName: 2966 AddTypeSourceInfo(DNLoc.NamedType.TInfo, Record); 2967 break; 2968 2969 case DeclarationName::CXXOperatorName: 2970 AddSourceLocation( 2971 SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.BeginOpNameLoc), 2972 Record); 2973 AddSourceLocation( 2974 SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.EndOpNameLoc), 2975 Record); 2976 break; 2977 2978 case DeclarationName::CXXLiteralOperatorName: 2979 AddSourceLocation( 2980 SourceLocation::getFromRawEncoding(DNLoc.CXXLiteralOperatorName.OpNameLoc), 2981 Record); 2982 break; 2983 2984 case DeclarationName::Identifier: 2985 case DeclarationName::ObjCZeroArgSelector: 2986 case DeclarationName::ObjCOneArgSelector: 2987 case DeclarationName::ObjCMultiArgSelector: 2988 case DeclarationName::CXXUsingDirective: 2989 break; 2990 } 2991} 2992 2993void ASTWriter::AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo, 2994 RecordData &Record) { 2995 AddDeclarationName(NameInfo.getName(), Record); 2996 AddSourceLocation(NameInfo.getLoc(), Record); 2997 AddDeclarationNameLoc(NameInfo.getInfo(), NameInfo.getName(), Record); 2998} 2999 3000void ASTWriter::AddQualifierInfo(const QualifierInfo &Info, 3001 RecordData &Record) { 3002 AddNestedNameSpecifier(Info.NNS, Record); 3003 AddSourceRange(Info.NNSRange, Record); 3004 Record.push_back(Info.NumTemplParamLists); 3005 for (unsigned i=0, e=Info.NumTemplParamLists; i != e; ++i) 3006 AddTemplateParameterList(Info.TemplParamLists[i], Record); 3007} 3008 3009void ASTWriter::AddNestedNameSpecifier(NestedNameSpecifier *NNS, 3010 RecordData &Record) { 3011 // Nested name specifiers usually aren't too long. I think that 8 would 3012 // typically accomodate the vast majority. 3013 llvm::SmallVector<NestedNameSpecifier *, 8> NestedNames; 3014 3015 // Push each of the NNS's onto a stack for serialization in reverse order. 3016 while (NNS) { 3017 NestedNames.push_back(NNS); 3018 NNS = NNS->getPrefix(); 3019 } 3020 3021 Record.push_back(NestedNames.size()); 3022 while(!NestedNames.empty()) { 3023 NNS = NestedNames.pop_back_val(); 3024 NestedNameSpecifier::SpecifierKind Kind = NNS->getKind(); 3025 Record.push_back(Kind); 3026 switch (Kind) { 3027 case NestedNameSpecifier::Identifier: 3028 AddIdentifierRef(NNS->getAsIdentifier(), Record); 3029 break; 3030 3031 case NestedNameSpecifier::Namespace: 3032 AddDeclRef(NNS->getAsNamespace(), Record); 3033 break; 3034 3035 case NestedNameSpecifier::TypeSpec: 3036 case NestedNameSpecifier::TypeSpecWithTemplate: 3037 AddTypeRef(QualType(NNS->getAsType(), 0), Record); 3038 Record.push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate); 3039 break; 3040 3041 case NestedNameSpecifier::Global: 3042 // Don't need to write an associated value. 3043 break; 3044 } 3045 } 3046} 3047 3048void ASTWriter::AddTemplateName(TemplateName Name, RecordData &Record) { 3049 TemplateName::NameKind Kind = Name.getKind(); 3050 Record.push_back(Kind); 3051 switch (Kind) { 3052 case TemplateName::Template: 3053 AddDeclRef(Name.getAsTemplateDecl(), Record); 3054 break; 3055 3056 case TemplateName::OverloadedTemplate: { 3057 OverloadedTemplateStorage *OvT = Name.getAsOverloadedTemplate(); 3058 Record.push_back(OvT->size()); 3059 for (OverloadedTemplateStorage::iterator I = OvT->begin(), E = OvT->end(); 3060 I != E; ++I) 3061 AddDeclRef(*I, Record); 3062 break; 3063 } 3064 3065 case TemplateName::QualifiedTemplate: { 3066 QualifiedTemplateName *QualT = Name.getAsQualifiedTemplateName(); 3067 AddNestedNameSpecifier(QualT->getQualifier(), Record); 3068 Record.push_back(QualT->hasTemplateKeyword()); 3069 AddDeclRef(QualT->getTemplateDecl(), Record); 3070 break; 3071 } 3072 3073 case TemplateName::DependentTemplate: { 3074 DependentTemplateName *DepT = Name.getAsDependentTemplateName(); 3075 AddNestedNameSpecifier(DepT->getQualifier(), Record); 3076 Record.push_back(DepT->isIdentifier()); 3077 if (DepT->isIdentifier()) 3078 AddIdentifierRef(DepT->getIdentifier(), Record); 3079 else 3080 Record.push_back(DepT->getOperator()); 3081 break; 3082 } 3083 } 3084} 3085 3086void ASTWriter::AddTemplateArgument(const TemplateArgument &Arg, 3087 RecordData &Record) { 3088 Record.push_back(Arg.getKind()); 3089 switch (Arg.getKind()) { 3090 case TemplateArgument::Null: 3091 break; 3092 case TemplateArgument::Type: 3093 AddTypeRef(Arg.getAsType(), Record); 3094 break; 3095 case TemplateArgument::Declaration: 3096 AddDeclRef(Arg.getAsDecl(), Record); 3097 break; 3098 case TemplateArgument::Integral: 3099 AddAPSInt(*Arg.getAsIntegral(), Record); 3100 AddTypeRef(Arg.getIntegralType(), Record); 3101 break; 3102 case TemplateArgument::Template: 3103 AddTemplateName(Arg.getAsTemplate(), Record); 3104 break; 3105 case TemplateArgument::Expression: 3106 AddStmt(Arg.getAsExpr()); 3107 break; 3108 case TemplateArgument::Pack: 3109 Record.push_back(Arg.pack_size()); 3110 for (TemplateArgument::pack_iterator I=Arg.pack_begin(), E=Arg.pack_end(); 3111 I != E; ++I) 3112 AddTemplateArgument(*I, Record); 3113 break; 3114 } 3115} 3116 3117void 3118ASTWriter::AddTemplateParameterList(const TemplateParameterList *TemplateParams, 3119 RecordData &Record) { 3120 assert(TemplateParams && "No TemplateParams!"); 3121 AddSourceLocation(TemplateParams->getTemplateLoc(), Record); 3122 AddSourceLocation(TemplateParams->getLAngleLoc(), Record); 3123 AddSourceLocation(TemplateParams->getRAngleLoc(), Record); 3124 Record.push_back(TemplateParams->size()); 3125 for (TemplateParameterList::const_iterator 3126 P = TemplateParams->begin(), PEnd = TemplateParams->end(); 3127 P != PEnd; ++P) 3128 AddDeclRef(*P, Record); 3129} 3130 3131/// \brief Emit a template argument list. 3132void 3133ASTWriter::AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs, 3134 RecordData &Record) { 3135 assert(TemplateArgs && "No TemplateArgs!"); 3136 Record.push_back(TemplateArgs->flat_size()); 3137 for (int i=0, e = TemplateArgs->flat_size(); i != e; ++i) 3138 AddTemplateArgument(TemplateArgs->get(i), Record); 3139} 3140 3141 3142void 3143ASTWriter::AddUnresolvedSet(const UnresolvedSetImpl &Set, RecordData &Record) { 3144 Record.push_back(Set.size()); 3145 for (UnresolvedSetImpl::const_iterator 3146 I = Set.begin(), E = Set.end(); I != E; ++I) { 3147 AddDeclRef(I.getDecl(), Record); 3148 Record.push_back(I.getAccess()); 3149 } 3150} 3151 3152void ASTWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base, 3153 RecordData &Record) { 3154 Record.push_back(Base.isVirtual()); 3155 Record.push_back(Base.isBaseOfClass()); 3156 Record.push_back(Base.getAccessSpecifierAsWritten()); 3157 AddTypeSourceInfo(Base.getTypeSourceInfo(), Record); 3158 AddSourceRange(Base.getSourceRange(), Record); 3159} 3160 3161void ASTWriter::AddCXXBaseOrMemberInitializers( 3162 const CXXBaseOrMemberInitializer * const *BaseOrMembers, 3163 unsigned NumBaseOrMembers, RecordData &Record) { 3164 Record.push_back(NumBaseOrMembers); 3165 for (unsigned i=0; i != NumBaseOrMembers; ++i) { 3166 const CXXBaseOrMemberInitializer *Init = BaseOrMembers[i]; 3167 3168 Record.push_back(Init->isBaseInitializer()); 3169 if (Init->isBaseInitializer()) { 3170 AddTypeSourceInfo(Init->getBaseClassInfo(), Record); 3171 Record.push_back(Init->isBaseVirtual()); 3172 } else { 3173 AddDeclRef(Init->getMember(), Record); 3174 } 3175 AddSourceLocation(Init->getMemberLocation(), Record); 3176 AddStmt(Init->getInit()); 3177 AddDeclRef(Init->getAnonUnionMember(), Record); 3178 AddSourceLocation(Init->getLParenLoc(), Record); 3179 AddSourceLocation(Init->getRParenLoc(), Record); 3180 Record.push_back(Init->isWritten()); 3181 if (Init->isWritten()) { 3182 Record.push_back(Init->getSourceOrder()); 3183 } else { 3184 Record.push_back(Init->getNumArrayIndices()); 3185 for (unsigned i=0, e=Init->getNumArrayIndices(); i != e; ++i) 3186 AddDeclRef(Init->getArrayIndex(i), Record); 3187 } 3188 } 3189} 3190 3191void ASTWriter::SetReader(ASTReader *Reader) { 3192 assert(Reader && "Cannot remove chain"); 3193 assert(FirstDeclID == NextDeclID && 3194 FirstTypeID == NextTypeID && 3195 FirstIdentID == NextIdentID && 3196 FirstSelectorID == NextSelectorID && 3197 FirstMacroID == NextMacroID && 3198 "Setting chain after writing has started."); 3199 Chain = Reader; 3200} 3201 3202void ASTWriter::IdentifierRead(IdentID ID, IdentifierInfo *II) { 3203 IdentifierIDs[II] = ID; 3204} 3205 3206void ASTWriter::TypeRead(TypeIdx Idx, QualType T) { 3207 // Always take the highest-numbered type index. This copes with an interesting 3208 // case for chained AST writing where we schedule writing the type and then, 3209 // later, deserialize the type from another AST. In this case, we want to 3210 // keep the higher-numbered entry so that we can properly write it out to 3211 // the AST file. 3212 TypeIdx &StoredIdx = TypeIdxs[T]; 3213 if (Idx.getIndex() >= StoredIdx.getIndex()) 3214 StoredIdx = Idx; 3215} 3216 3217void ASTWriter::DeclRead(DeclID ID, const Decl *D) { 3218 DeclIDs[D] = ID; 3219} 3220 3221void ASTWriter::SelectorRead(SelectorID ID, Selector S) { 3222 SelectorIDs[S] = ID; 3223} 3224 3225void ASTWriter::MacroDefinitionRead(serialization::MacroID ID, 3226 MacroDefinition *MD) { 3227 MacroDefinitions[MD] = ID; 3228} 3229