| //===--- TypeSerialization.cpp - Serialization of Decls ---------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines methods that implement bitcode serialization for Types. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/AST/Type.h" |
| #include "clang/AST/Expr.h" |
| #include "clang/AST/ASTContext.h" |
| #include "llvm/Bitcode/Serialize.h" |
| #include "llvm/Bitcode/Deserialize.h" |
| |
| using namespace clang; |
| using llvm::Serializer; |
| using llvm::Deserializer; |
| using llvm::SerializedPtrID; |
| |
| |
| void QualType::Emit(Serializer& S) const { |
| S.EmitPtr(getTypePtr()); |
| S.EmitInt(getCVRQualifiers()); |
| } |
| |
| QualType QualType::ReadVal(Deserializer& D) { |
| QualType Q; |
| D.ReadUIntPtr(Q.ThePtr,false); |
| Q.ThePtr |= D.ReadInt(); |
| return Q; |
| } |
| |
| void QualType::ReadBackpatch(Deserializer& D) { |
| D.ReadUIntPtr(ThePtr,true); |
| ThePtr |= D.ReadInt(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Type Serialization: Dispatch code to handle specific types. |
| //===----------------------------------------------------------------------===// |
| |
| void Type::Emit(Serializer& S) const { |
| S.EmitInt(getTypeClass()); |
| S.EmitPtr(this); |
| |
| if (!isa<BuiltinType>(this)) |
| EmitImpl(S); |
| } |
| |
| void Type::EmitImpl(Serializer& S) const { |
| assert (false && "Serializization for type not supported."); |
| } |
| |
| void Type::Create(ASTContext& Context, unsigned i, Deserializer& D) { |
| Type::TypeClass K = static_cast<Type::TypeClass>(D.ReadInt()); |
| SerializedPtrID PtrID = D.ReadPtrID(); |
| |
| switch (K) { |
| default: |
| assert (false && "Deserialization for type not supported."); |
| break; |
| |
| case Type::Builtin: |
| assert (i < Context.getTypes().size()); |
| assert (isa<BuiltinType>(Context.getTypes()[i])); |
| D.RegisterPtr(PtrID,Context.getTypes()[i]); |
| break; |
| |
| case Type::ASQual: |
| D.RegisterPtr(PtrID,ASQualType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::Complex: |
| D.RegisterPtr(PtrID,ComplexType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::ConstantArray: |
| D.RegisterPtr(PtrID,ConstantArrayType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::FunctionNoProto: |
| D.RegisterPtr(PtrID,FunctionTypeNoProto::CreateImpl(Context,D)); |
| break; |
| |
| case Type::FunctionProto: |
| D.RegisterPtr(PtrID,FunctionTypeProto::CreateImpl(Context,D)); |
| break; |
| |
| case Type::IncompleteArray: |
| D.RegisterPtr(PtrID,IncompleteArrayType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::Pointer: |
| D.RegisterPtr(PtrID,PointerType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::Tagged: |
| D.RegisterPtr(PtrID,TagType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::TypeName: |
| D.RegisterPtr(PtrID,TypedefType::CreateImpl(Context,D)); |
| break; |
| |
| case Type::VariableArray: |
| D.RegisterPtr(PtrID,VariableArrayType::CreateImpl(Context,D)); |
| break; |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // ASQualType |
| //===----------------------------------------------------------------------===// |
| |
| void ASQualType::EmitImpl(Serializer& S) const { |
| S.EmitPtr(getBaseType()); |
| S.EmitInt(getAddressSpace()); |
| } |
| |
| Type* ASQualType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| QualType BaseTy = QualType::ReadVal(D); |
| unsigned AddressSpace = D.ReadInt(); |
| return Context.getASQualType(BaseTy, AddressSpace).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // ComplexType |
| //===----------------------------------------------------------------------===// |
| |
| void ComplexType::EmitImpl(Serializer& S) const { |
| S.Emit(getElementType()); |
| } |
| |
| Type* ComplexType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| return Context.getComplexType(QualType::ReadVal(D)).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // ConstantArray |
| //===----------------------------------------------------------------------===// |
| |
| void ConstantArrayType::EmitImpl(Serializer& S) const { |
| S.Emit(getElementType()); |
| S.EmitInt(getSizeModifier()); |
| S.EmitInt(getIndexTypeQualifier()); |
| S.Emit(Size); |
| } |
| |
| Type* ConstantArrayType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| QualType ElTy = QualType::ReadVal(D); |
| ArraySizeModifier am = static_cast<ArraySizeModifier>(D.ReadInt()); |
| unsigned ITQ = D.ReadInt(); |
| |
| llvm::APInt Size; |
| D.Read(Size); |
| |
| return Context.getConstantArrayType(ElTy,Size,am,ITQ).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // FunctionTypeNoProto |
| //===----------------------------------------------------------------------===// |
| |
| void FunctionTypeNoProto::EmitImpl(Serializer& S) const { |
| S.Emit(getResultType()); |
| } |
| |
| Type* FunctionTypeNoProto::CreateImpl(ASTContext& Context, Deserializer& D) { |
| return Context.getFunctionTypeNoProto(QualType::ReadVal(D)).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // FunctionTypeProto |
| //===----------------------------------------------------------------------===// |
| |
| void FunctionTypeProto::EmitImpl(Serializer& S) const { |
| S.Emit(getResultType()); |
| S.EmitBool(isVariadic()); |
| S.EmitInt(getNumArgs()); |
| |
| for (arg_type_iterator I=arg_type_begin(), E=arg_type_end(); I!=E; ++I) |
| S.Emit(*I); |
| } |
| |
| Type* FunctionTypeProto::CreateImpl(ASTContext& Context, Deserializer& D) { |
| QualType ResultType = QualType::ReadVal(D); |
| bool isVariadic = D.ReadBool(); |
| unsigned NumArgs = D.ReadInt(); |
| |
| llvm::SmallVector<QualType,15> Args; |
| |
| for (unsigned j = 0; j < NumArgs; ++j) |
| Args.push_back(QualType::ReadVal(D)); |
| |
| return Context.getFunctionType(ResultType,&*Args.begin(), |
| NumArgs,isVariadic).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // PointerType |
| //===----------------------------------------------------------------------===// |
| |
| void PointerType::EmitImpl(Serializer& S) const { |
| S.Emit(getPointeeType()); |
| } |
| |
| Type* PointerType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| return Context.getPointerType(QualType::ReadVal(D)).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // TagType |
| //===----------------------------------------------------------------------===// |
| |
| void TagType::EmitImpl(Serializer& S) const { |
| S.EmitOwnedPtr(getDecl()); |
| } |
| |
| Type* TagType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| std::vector<Type*>& Types = |
| const_cast<std::vector<Type*>&>(Context.getTypes()); |
| |
| TagType* T = new TagType(NULL,QualType()); |
| Types.push_back(T); |
| |
| // Deserialize the decl. |
| T->decl = cast<TagDecl>(D.ReadOwnedPtr<Decl>(Context)); |
| |
| return T; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // TypedefType |
| //===----------------------------------------------------------------------===// |
| |
| void TypedefType::EmitImpl(Serializer& S) const { |
| S.Emit(getCanonicalTypeInternal()); |
| S.EmitPtr(Decl); |
| } |
| |
| Type* TypedefType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| std::vector<Type*>& Types = |
| const_cast<std::vector<Type*>&>(Context.getTypes()); |
| |
| TypedefType* T = new TypedefType(Type::TypeName, NULL, QualType::ReadVal(D)); |
| Types.push_back(T); |
| |
| D.ReadPtr(T->Decl); // May be backpatched. |
| return T; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // VariableArrayType |
| //===----------------------------------------------------------------------===// |
| |
| void VariableArrayType::EmitImpl(Serializer& S) const { |
| S.Emit(getElementType()); |
| S.EmitInt(getSizeModifier()); |
| S.EmitInt(getIndexTypeQualifier()); |
| S.EmitOwnedPtr(SizeExpr); |
| } |
| |
| Type* VariableArrayType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| QualType ElTy = QualType::ReadVal(D); |
| ArraySizeModifier am = static_cast<ArraySizeModifier>(D.ReadInt()); |
| unsigned ITQ = D.ReadInt(); |
| Expr* SizeExpr = D.ReadOwnedPtr<Expr>(Context); |
| |
| return Context.getVariableArrayType(ElTy,SizeExpr,am,ITQ).getTypePtr(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // IncompleteArrayType |
| //===----------------------------------------------------------------------===// |
| |
| void IncompleteArrayType::EmitImpl(Serializer& S) const { |
| S.Emit(getElementType()); |
| S.EmitInt(getSizeModifier()); |
| S.EmitInt(getIndexTypeQualifier()); |
| } |
| |
| Type* IncompleteArrayType::CreateImpl(ASTContext& Context, Deserializer& D) { |
| QualType ElTy = QualType::ReadVal(D); |
| ArraySizeModifier am = static_cast<ArraySizeModifier>(D.ReadInt()); |
| unsigned ITQ = D.ReadInt(); |
| |
| return Context.getIncompleteArrayType(ElTy,am,ITQ).getTypePtr(); |
| } |