| //===--- Type.cpp - Type representation and manipulation ------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements type-related functionality. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/Type.h" |
| #include "clang/AST/DeclCXX.h" |
| #include "clang/AST/DeclObjC.h" |
| #include "clang/AST/DeclTemplate.h" |
| #include "clang/AST/Expr.h" |
| #include "clang/AST/PrettyPrinter.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/Support/raw_ostream.h" |
| using namespace clang; |
| |
| bool QualType::isConstant(ASTContext &Ctx) const { |
| if (isConstQualified()) |
| return true; |
| |
| if (getTypePtr()->isArrayType()) |
| return Ctx.getAsArrayType(*this)->getElementType().isConstant(Ctx); |
| |
| return false; |
| } |
| |
| void Type::Destroy(ASTContext& C) { |
| this->~Type(); |
| C.Deallocate(this); |
| } |
| |
| void VariableArrayType::Destroy(ASTContext& C) { |
| if (SizeExpr) |
| SizeExpr->Destroy(C); |
| this->~VariableArrayType(); |
| C.Deallocate(this); |
| } |
| |
| void DependentSizedArrayType::Destroy(ASTContext& C) { |
| SizeExpr->Destroy(C); |
| this->~DependentSizedArrayType(); |
| C.Deallocate(this); |
| } |
| |
| /// getArrayElementTypeNoTypeQual - If this is an array type, return the |
| /// element type of the array, potentially with type qualifiers missing. |
| /// This method should never be used when type qualifiers are meaningful. |
| const Type *Type::getArrayElementTypeNoTypeQual() const { |
| // If this is directly an array type, return it. |
| if (const ArrayType *ATy = dyn_cast<ArrayType>(this)) |
| return ATy->getElementType().getTypePtr(); |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<ArrayType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (ArrayType *AT = dyn_cast<ArrayType>(CanonicalType.getUnqualifiedType())) |
| return AT->getElementType().getTypePtr(); |
| return 0; |
| } |
| |
| // If this is a typedef for an array type, strip the typedef off without |
| // losing all typedef information. |
| return cast<ArrayType>(getDesugaredType())->getElementType().getTypePtr(); |
| } |
| |
| /// getDesugaredType - Return the specified type with any "sugar" removed from |
| /// the type. This takes off typedefs, typeof's etc. If the outer level of |
| /// the type is already concrete, it returns it unmodified. This is similar |
| /// to getting the canonical type, but it doesn't remove *all* typedefs. For |
| /// example, it returns "T*" as "T*", (not as "int*"), because the pointer is |
| /// concrete. |
| /// |
| /// \param ForDisplay When true, the desugaring is provided for |
| /// display purposes only. In this case, we apply more heuristics to |
| /// decide whether it is worth providing a desugared form of the type |
| /// or not. |
| QualType QualType::getDesugaredType(bool ForDisplay) const { |
| return getTypePtr()->getDesugaredType(ForDisplay) |
| .getWithAdditionalQualifiers(getCVRQualifiers()); |
| } |
| |
| /// getDesugaredType - Return the specified type with any "sugar" removed from |
| /// type type. This takes off typedefs, typeof's etc. If the outer level of |
| /// the type is already concrete, it returns it unmodified. This is similar |
| /// to getting the canonical type, but it doesn't remove *all* typedefs. For |
| /// example, it return "T*" as "T*", (not as "int*"), because the pointer is |
| /// concrete. |
| /// |
| /// \param ForDisplay When true, the desugaring is provided for |
| /// display purposes only. In this case, we apply more heuristics to |
| /// decide whether it is worth providing a desugared form of the type |
| /// or not. |
| QualType Type::getDesugaredType(bool ForDisplay) const { |
| if (const TypedefType *TDT = dyn_cast<TypedefType>(this)) |
| return TDT->LookThroughTypedefs().getDesugaredType(); |
| if (const TypeOfExprType *TOE = dyn_cast<TypeOfExprType>(this)) |
| return TOE->getUnderlyingExpr()->getType().getDesugaredType(); |
| if (const TypeOfType *TOT = dyn_cast<TypeOfType>(this)) |
| return TOT->getUnderlyingType().getDesugaredType(); |
| if (const TemplateSpecializationType *Spec |
| = dyn_cast<TemplateSpecializationType>(this)) { |
| if (ForDisplay) |
| return QualType(this, 0); |
| |
| QualType Canon = Spec->getCanonicalTypeInternal(); |
| if (Canon->getAsTemplateSpecializationType()) |
| return QualType(this, 0); |
| return Canon->getDesugaredType(); |
| } |
| if (const QualifiedNameType *QualName = dyn_cast<QualifiedNameType>(this)) { |
| if (ForDisplay) { |
| // If desugaring the type that the qualified name is referring to |
| // produces something interesting, that's our desugared type. |
| QualType NamedType = QualName->getNamedType().getDesugaredType(); |
| if (NamedType != QualName->getNamedType()) |
| return NamedType; |
| } else |
| return QualName->getNamedType().getDesugaredType(); |
| } |
| |
| return QualType(this, 0); |
| } |
| |
| /// isVoidType - Helper method to determine if this is the 'void' type. |
| bool Type::isVoidType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() == BuiltinType::Void; |
| if (const ExtQualType *AS = dyn_cast<ExtQualType>(CanonicalType)) |
| return AS->getBaseType()->isVoidType(); |
| return false; |
| } |
| |
| bool Type::isObjectType() const { |
| if (isa<FunctionType>(CanonicalType) || isa<ReferenceType>(CanonicalType) || |
| isa<IncompleteArrayType>(CanonicalType) || isVoidType()) |
| return false; |
| if (const ExtQualType *AS = dyn_cast<ExtQualType>(CanonicalType)) |
| return AS->getBaseType()->isObjectType(); |
| return true; |
| } |
| |
| bool Type::isDerivedType() const { |
| switch (CanonicalType->getTypeClass()) { |
| case ExtQual: |
| return cast<ExtQualType>(CanonicalType)->getBaseType()->isDerivedType(); |
| case Pointer: |
| case VariableArray: |
| case ConstantArray: |
| case IncompleteArray: |
| case FunctionProto: |
| case FunctionNoProto: |
| case LValueReference: |
| case RValueReference: |
| case Record: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool Type::isClassType() const { |
| if (const RecordType *RT = getAsRecordType()) |
| return RT->getDecl()->isClass(); |
| return false; |
| } |
| bool Type::isStructureType() const { |
| if (const RecordType *RT = getAsRecordType()) |
| return RT->getDecl()->isStruct(); |
| return false; |
| } |
| bool Type::isUnionType() const { |
| if (const RecordType *RT = getAsRecordType()) |
| return RT->getDecl()->isUnion(); |
| return false; |
| } |
| |
| bool Type::isComplexType() const { |
| if (const ComplexType *CT = dyn_cast<ComplexType>(CanonicalType)) |
| return CT->getElementType()->isFloatingType(); |
| if (const ExtQualType *AS = dyn_cast<ExtQualType>(CanonicalType)) |
| return AS->getBaseType()->isComplexType(); |
| return false; |
| } |
| |
| bool Type::isComplexIntegerType() const { |
| // Check for GCC complex integer extension. |
| if (const ComplexType *CT = dyn_cast<ComplexType>(CanonicalType)) |
| return CT->getElementType()->isIntegerType(); |
| if (const ExtQualType *AS = dyn_cast<ExtQualType>(CanonicalType)) |
| return AS->getBaseType()->isComplexIntegerType(); |
| return false; |
| } |
| |
| const ComplexType *Type::getAsComplexIntegerType() const { |
| // Are we directly a complex type? |
| if (const ComplexType *CTy = dyn_cast<ComplexType>(this)) { |
| if (CTy->getElementType()->isIntegerType()) |
| return CTy; |
| return 0; |
| } |
| |
| // If the canonical form of this type isn't what we want, reject it. |
| if (!isa<ComplexType>(CanonicalType)) { |
| // Look through type qualifiers (e.g. ExtQualType's). |
| if (isa<ComplexType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsComplexIntegerType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a complex type, strip the typedef off without |
| // losing all typedef information. |
| return cast<ComplexType>(getDesugaredType()); |
| } |
| |
| const BuiltinType *Type::getAsBuiltinType() const { |
| // If this is directly a builtin type, return it. |
| if (const BuiltinType *BTy = dyn_cast<BuiltinType>(this)) |
| return BTy; |
| |
| // If the canonical form of this type isn't a builtin type, reject it. |
| if (!isa<BuiltinType>(CanonicalType)) { |
| // Look through type qualifiers (e.g. ExtQualType's). |
| if (isa<BuiltinType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsBuiltinType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a builtin type, strip the typedef off without |
| // losing all typedef information. |
| return cast<BuiltinType>(getDesugaredType()); |
| } |
| |
| const FunctionType *Type::getAsFunctionType() const { |
| // If this is directly a function type, return it. |
| if (const FunctionType *FTy = dyn_cast<FunctionType>(this)) |
| return FTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<FunctionType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<FunctionType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsFunctionType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a function type, strip the typedef off without |
| // losing all typedef information. |
| return cast<FunctionType>(getDesugaredType()); |
| } |
| |
| const FunctionNoProtoType *Type::getAsFunctionNoProtoType() const { |
| return dyn_cast_or_null<FunctionNoProtoType>(getAsFunctionType()); |
| } |
| |
| const FunctionProtoType *Type::getAsFunctionProtoType() const { |
| return dyn_cast_or_null<FunctionProtoType>(getAsFunctionType()); |
| } |
| |
| |
| const PointerType *Type::getAsPointerType() const { |
| // If this is directly a pointer type, return it. |
| if (const PointerType *PTy = dyn_cast<PointerType>(this)) |
| return PTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<PointerType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<PointerType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsPointerType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a pointer type, strip the typedef off without |
| // losing all typedef information. |
| return cast<PointerType>(getDesugaredType()); |
| } |
| |
| const BlockPointerType *Type::getAsBlockPointerType() const { |
| // If this is directly a block pointer type, return it. |
| if (const BlockPointerType *PTy = dyn_cast<BlockPointerType>(this)) |
| return PTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<BlockPointerType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<BlockPointerType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsBlockPointerType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a block pointer type, strip the typedef off |
| // without losing all typedef information. |
| return cast<BlockPointerType>(getDesugaredType()); |
| } |
| |
| const ReferenceType *Type::getAsReferenceType() const { |
| // If this is directly a reference type, return it. |
| if (const ReferenceType *RTy = dyn_cast<ReferenceType>(this)) |
| return RTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<ReferenceType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<ReferenceType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsReferenceType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a reference type, strip the typedef off without |
| // losing all typedef information. |
| return cast<ReferenceType>(getDesugaredType()); |
| } |
| |
| const LValueReferenceType *Type::getAsLValueReferenceType() const { |
| // If this is directly an lvalue reference type, return it. |
| if (const LValueReferenceType *RTy = dyn_cast<LValueReferenceType>(this)) |
| return RTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<LValueReferenceType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<LValueReferenceType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsLValueReferenceType(); |
| return 0; |
| } |
| |
| // If this is a typedef for an lvalue reference type, strip the typedef off |
| // without losing all typedef information. |
| return cast<LValueReferenceType>(getDesugaredType()); |
| } |
| |
| const RValueReferenceType *Type::getAsRValueReferenceType() const { |
| // If this is directly an rvalue reference type, return it. |
| if (const RValueReferenceType *RTy = dyn_cast<RValueReferenceType>(this)) |
| return RTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<RValueReferenceType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<RValueReferenceType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsRValueReferenceType(); |
| return 0; |
| } |
| |
| // If this is a typedef for an rvalue reference type, strip the typedef off |
| // without losing all typedef information. |
| return cast<RValueReferenceType>(getDesugaredType()); |
| } |
| |
| const MemberPointerType *Type::getAsMemberPointerType() const { |
| // If this is directly a member pointer type, return it. |
| if (const MemberPointerType *MTy = dyn_cast<MemberPointerType>(this)) |
| return MTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<MemberPointerType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<MemberPointerType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsMemberPointerType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a member pointer type, strip the typedef off |
| // without losing all typedef information. |
| return cast<MemberPointerType>(getDesugaredType()); |
| } |
| |
| /// isVariablyModifiedType (C99 6.7.5p3) - Return true for variable length |
| /// array types and types that contain variable array types in their |
| /// declarator |
| bool Type::isVariablyModifiedType() const { |
| // A VLA is a variably modified type. |
| if (isVariableArrayType()) |
| return true; |
| |
| // An array can contain a variably modified type |
| if (const Type *T = getArrayElementTypeNoTypeQual()) |
| return T->isVariablyModifiedType(); |
| |
| // A pointer can point to a variably modified type. |
| // Also, C++ references and member pointers can point to a variably modified |
| // type, where VLAs appear as an extension to C++, and should be treated |
| // correctly. |
| if (const PointerType *PT = getAsPointerType()) |
| return PT->getPointeeType()->isVariablyModifiedType(); |
| if (const ReferenceType *RT = getAsReferenceType()) |
| return RT->getPointeeType()->isVariablyModifiedType(); |
| if (const MemberPointerType *PT = getAsMemberPointerType()) |
| return PT->getPointeeType()->isVariablyModifiedType(); |
| |
| // A function can return a variably modified type |
| // This one isn't completely obvious, but it follows from the |
| // definition in C99 6.7.5p3. Because of this rule, it's |
| // illegal to declare a function returning a variably modified type. |
| if (const FunctionType *FT = getAsFunctionType()) |
| return FT->getResultType()->isVariablyModifiedType(); |
| |
| return false; |
| } |
| |
| const RecordType *Type::getAsRecordType() const { |
| // If this is directly a record type, return it. |
| if (const RecordType *RTy = dyn_cast<RecordType>(this)) |
| return RTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<RecordType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<RecordType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsRecordType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a record type, strip the typedef off without |
| // losing all typedef information. |
| return cast<RecordType>(getDesugaredType()); |
| } |
| |
| const TagType *Type::getAsTagType() const { |
| // If this is directly a tag type, return it. |
| if (const TagType *TagTy = dyn_cast<TagType>(this)) |
| return TagTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<TagType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<TagType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsTagType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a tag type, strip the typedef off without |
| // losing all typedef information. |
| return cast<TagType>(getDesugaredType()); |
| } |
| |
| const RecordType *Type::getAsStructureType() const { |
| // If this is directly a structure type, return it. |
| if (const RecordType *RT = dyn_cast<RecordType>(this)) { |
| if (RT->getDecl()->isStruct()) |
| return RT; |
| } |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (const RecordType *RT = dyn_cast<RecordType>(CanonicalType)) { |
| if (!RT->getDecl()->isStruct()) |
| return 0; |
| |
| // If this is a typedef for a structure type, strip the typedef off without |
| // losing all typedef information. |
| return cast<RecordType>(getDesugaredType()); |
| } |
| // Look through type qualifiers |
| if (isa<RecordType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsStructureType(); |
| return 0; |
| } |
| |
| const RecordType *Type::getAsUnionType() const { |
| // If this is directly a union type, return it. |
| if (const RecordType *RT = dyn_cast<RecordType>(this)) { |
| if (RT->getDecl()->isUnion()) |
| return RT; |
| } |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (const RecordType *RT = dyn_cast<RecordType>(CanonicalType)) { |
| if (!RT->getDecl()->isUnion()) |
| return 0; |
| |
| // If this is a typedef for a union type, strip the typedef off without |
| // losing all typedef information. |
| return cast<RecordType>(getDesugaredType()); |
| } |
| |
| // Look through type qualifiers |
| if (isa<RecordType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsUnionType(); |
| return 0; |
| } |
| |
| const EnumType *Type::getAsEnumType() const { |
| // Check the canonicalized unqualified type directly; the more complex |
| // version is unnecessary because there isn't any typedef information |
| // to preserve. |
| return dyn_cast<EnumType>(CanonicalType.getUnqualifiedType()); |
| } |
| |
| const ComplexType *Type::getAsComplexType() const { |
| // Are we directly a complex type? |
| if (const ComplexType *CTy = dyn_cast<ComplexType>(this)) |
| return CTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<ComplexType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<ComplexType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsComplexType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a complex type, strip the typedef off without |
| // losing all typedef information. |
| return cast<ComplexType>(getDesugaredType()); |
| } |
| |
| const VectorType *Type::getAsVectorType() const { |
| // Are we directly a vector type? |
| if (const VectorType *VTy = dyn_cast<VectorType>(this)) |
| return VTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<VectorType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<VectorType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsVectorType(); |
| return 0; |
| } |
| |
| // If this is a typedef for a vector type, strip the typedef off without |
| // losing all typedef information. |
| return cast<VectorType>(getDesugaredType()); |
| } |
| |
| const ExtVectorType *Type::getAsExtVectorType() const { |
| // Are we directly an OpenCU vector type? |
| if (const ExtVectorType *VTy = dyn_cast<ExtVectorType>(this)) |
| return VTy; |
| |
| // If the canonical form of this type isn't the right kind, reject it. |
| if (!isa<ExtVectorType>(CanonicalType)) { |
| // Look through type qualifiers |
| if (isa<ExtVectorType>(CanonicalType.getUnqualifiedType())) |
| return CanonicalType.getUnqualifiedType()->getAsExtVectorType(); |
| return 0; |
| } |
| |
| // If this is a typedef for an extended vector type, strip the typedef off |
| // without losing all typedef information. |
| return cast<ExtVectorType>(getDesugaredType()); |
| } |
| |
| const ObjCInterfaceType *Type::getAsObjCInterfaceType() const { |
| // There is no sugar for ObjCInterfaceType's, just return the canonical |
| // type pointer if it is the right class. There is no typedef information to |
| // return and these cannot be Address-space qualified. |
| return dyn_cast<ObjCInterfaceType>(CanonicalType.getUnqualifiedType()); |
| } |
| |
| const ObjCQualifiedInterfaceType * |
| Type::getAsObjCQualifiedInterfaceType() const { |
| // There is no sugar for ObjCQualifiedInterfaceType's, just return the |
| // canonical type pointer if it is the right class. |
| return dyn_cast<ObjCQualifiedInterfaceType>(CanonicalType.getUnqualifiedType()); |
| } |
| |
| const ObjCQualifiedIdType *Type::getAsObjCQualifiedIdType() const { |
| // There is no sugar for ObjCQualifiedIdType's, just return the canonical |
| // type pointer if it is the right class. |
| return dyn_cast<ObjCQualifiedIdType>(CanonicalType.getUnqualifiedType()); |
| } |
| |
| const TemplateTypeParmType *Type::getAsTemplateTypeParmType() const { |
| // There is no sugar for template type parameters, so just return |
| // the canonical type pointer if it is the right class. |
| // FIXME: can these be address-space qualified? |
| return dyn_cast<TemplateTypeParmType>(CanonicalType); |
| } |
| |
| const TemplateSpecializationType * |
| Type::getAsTemplateSpecializationType() const { |
| // There is no sugar for class template specialization types, so |
| // just return the canonical type pointer if it is the right class. |
| return dyn_cast<TemplateSpecializationType>(CanonicalType); |
| } |
| |
| bool Type::isIntegerType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() >= BuiltinType::Bool && |
| BT->getKind() <= BuiltinType::Int128; |
| if (const TagType *TT = dyn_cast<TagType>(CanonicalType)) |
| // Incomplete enum types are not treated as integer types. |
| // FIXME: In C++, enum types are never integer types. |
| if (TT->getDecl()->isEnum() && TT->getDecl()->isDefinition()) |
| return true; |
| if (isa<FixedWidthIntType>(CanonicalType)) |
| return true; |
| if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) |
| return VT->getElementType()->isIntegerType(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isIntegerType(); |
| return false; |
| } |
| |
| bool Type::isIntegralType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() >= BuiltinType::Bool && |
| BT->getKind() <= BuiltinType::LongLong; |
| if (const TagType *TT = dyn_cast<TagType>(CanonicalType)) |
| if (TT->getDecl()->isEnum() && TT->getDecl()->isDefinition()) |
| return true; // Complete enum types are integral. |
| // FIXME: In C++, enum types are never integral. |
| if (isa<FixedWidthIntType>(CanonicalType)) |
| return true; |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isIntegralType(); |
| return false; |
| } |
| |
| bool Type::isEnumeralType() const { |
| if (const TagType *TT = dyn_cast<TagType>(CanonicalType)) |
| return TT->getDecl()->isEnum(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isEnumeralType(); |
| return false; |
| } |
| |
| bool Type::isBooleanType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() == BuiltinType::Bool; |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isBooleanType(); |
| return false; |
| } |
| |
| bool Type::isCharType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() == BuiltinType::Char_U || |
| BT->getKind() == BuiltinType::UChar || |
| BT->getKind() == BuiltinType::Char_S || |
| BT->getKind() == BuiltinType::SChar; |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isCharType(); |
| return false; |
| } |
| |
| bool Type::isWideCharType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() == BuiltinType::WChar; |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isWideCharType(); |
| return false; |
| } |
| |
| /// isSignedIntegerType - Return true if this is an integer type that is |
| /// signed, according to C99 6.2.5p4 [char, signed char, short, int, long..], |
| /// an enum decl which has a signed representation, or a vector of signed |
| /// integer element type. |
| bool Type::isSignedIntegerType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) { |
| return BT->getKind() >= BuiltinType::Char_S && |
| BT->getKind() <= BuiltinType::LongLong; |
| } |
| |
| if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) |
| return ET->getDecl()->getIntegerType()->isSignedIntegerType(); |
| |
| if (const FixedWidthIntType *FWIT = |
| dyn_cast<FixedWidthIntType>(CanonicalType)) |
| return FWIT->isSigned(); |
| |
| if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) |
| return VT->getElementType()->isSignedIntegerType(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isSignedIntegerType(); |
| return false; |
| } |
| |
| /// isUnsignedIntegerType - Return true if this is an integer type that is |
| /// unsigned, according to C99 6.2.5p6 [which returns true for _Bool], an enum |
| /// decl which has an unsigned representation, or a vector of unsigned integer |
| /// element type. |
| bool Type::isUnsignedIntegerType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) { |
| return BT->getKind() >= BuiltinType::Bool && |
| BT->getKind() <= BuiltinType::ULongLong; |
| } |
| |
| if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) |
| return ET->getDecl()->getIntegerType()->isUnsignedIntegerType(); |
| |
| if (const FixedWidthIntType *FWIT = |
| dyn_cast<FixedWidthIntType>(CanonicalType)) |
| return !FWIT->isSigned(); |
| |
| if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) |
| return VT->getElementType()->isUnsignedIntegerType(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isUnsignedIntegerType(); |
| return false; |
| } |
| |
| bool Type::isFloatingType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() >= BuiltinType::Float && |
| BT->getKind() <= BuiltinType::LongDouble; |
| if (const ComplexType *CT = dyn_cast<ComplexType>(CanonicalType)) |
| return CT->getElementType()->isFloatingType(); |
| if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) |
| return VT->getElementType()->isFloatingType(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isFloatingType(); |
| return false; |
| } |
| |
| bool Type::isRealFloatingType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() >= BuiltinType::Float && |
| BT->getKind() <= BuiltinType::LongDouble; |
| if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) |
| return VT->getElementType()->isRealFloatingType(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isRealFloatingType(); |
| return false; |
| } |
| |
| bool Type::isRealType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() >= BuiltinType::Bool && |
| BT->getKind() <= BuiltinType::LongDouble; |
| if (const TagType *TT = dyn_cast<TagType>(CanonicalType)) |
| return TT->getDecl()->isEnum() && TT->getDecl()->isDefinition(); |
| if (isa<FixedWidthIntType>(CanonicalType)) |
| return true; |
| if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) |
| return VT->getElementType()->isRealType(); |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isRealType(); |
| return false; |
| } |
| |
| bool Type::isArithmeticType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() >= BuiltinType::Bool && |
| BT->getKind() <= BuiltinType::LongDouble; |
| if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) |
| // GCC allows forward declaration of enum types (forbid by C99 6.7.2.3p2). |
| // If a body isn't seen by the time we get here, return false. |
| return ET->getDecl()->isDefinition(); |
| if (isa<FixedWidthIntType>(CanonicalType)) |
| return true; |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isArithmeticType(); |
| return isa<ComplexType>(CanonicalType) || isa<VectorType>(CanonicalType); |
| } |
| |
| bool Type::isScalarType() const { |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) |
| return BT->getKind() != BuiltinType::Void; |
| if (const TagType *TT = dyn_cast<TagType>(CanonicalType)) { |
| // Enums are scalar types, but only if they are defined. Incomplete enums |
| // are not treated as scalar types. |
| if (TT->getDecl()->isEnum() && TT->getDecl()->isDefinition()) |
| return true; |
| return false; |
| } |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isScalarType(); |
| if (isa<FixedWidthIntType>(CanonicalType)) |
| return true; |
| return isa<PointerType>(CanonicalType) || |
| isa<BlockPointerType>(CanonicalType) || |
| isa<MemberPointerType>(CanonicalType) || |
| isa<ComplexType>(CanonicalType) || |
| isa<ObjCQualifiedIdType>(CanonicalType); |
| } |
| |
| /// \brief Determines whether the type is a C++ aggregate type or C |
| /// aggregate or union type. |
| /// |
| /// An aggregate type is an array or a class type (struct, union, or |
| /// class) that has no user-declared constructors, no private or |
| /// protected non-static data members, no base classes, and no virtual |
| /// functions (C++ [dcl.init.aggr]p1). The notion of an aggregate type |
| /// subsumes the notion of C aggregates (C99 6.2.5p21) because it also |
| /// includes union types. |
| bool Type::isAggregateType() const { |
| if (const RecordType *Record = dyn_cast<RecordType>(CanonicalType)) { |
| if (CXXRecordDecl *ClassDecl = dyn_cast<CXXRecordDecl>(Record->getDecl())) |
| return ClassDecl->isAggregate(); |
| |
| return true; |
| } |
| |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isAggregateType(); |
| return isa<ArrayType>(CanonicalType); |
| } |
| |
| /// isConstantSizeType - Return true if this is not a variable sized type, |
| /// according to the rules of C99 6.7.5p3. It is not legal to call this on |
| /// incomplete types or dependent types. |
| bool Type::isConstantSizeType() const { |
| if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(CanonicalType)) |
| return EXTQT->getBaseType()->isConstantSizeType(); |
| assert(!isIncompleteType() && "This doesn't make sense for incomplete types"); |
| assert(!isDependentType() && "This doesn't make sense for dependent types"); |
| // The VAT must have a size, as it is known to be complete. |
| return !isa<VariableArrayType>(CanonicalType); |
| } |
| |
| /// isIncompleteType - Return true if this is an incomplete type (C99 6.2.5p1) |
| /// - a type that can describe objects, but which lacks information needed to |
| /// determine its size. |
| bool Type::isIncompleteType() const { |
| switch (CanonicalType->getTypeClass()) { |
| default: return false; |
| case ExtQual: |
| return cast<ExtQualType>(CanonicalType)->getBaseType()->isIncompleteType(); |
| case Builtin: |
| // Void is the only incomplete builtin type. Per C99 6.2.5p19, it can never |
| // be completed. |
| return isVoidType(); |
| case Record: |
| case Enum: |
| // A tagged type (struct/union/enum/class) is incomplete if the decl is a |
| // forward declaration, but not a full definition (C99 6.2.5p22). |
| return !cast<TagType>(CanonicalType)->getDecl()->isDefinition(); |
| case IncompleteArray: |
| // An array of unknown size is an incomplete type (C99 6.2.5p22). |
| return true; |
| case ObjCInterface: |
| case ObjCQualifiedInterface: |
| // ObjC interfaces are incomplete if they are @class, not @interface. |
| return cast<ObjCInterfaceType>(this)->getDecl()->isForwardDecl(); |
| } |
| } |
| |
| /// isPODType - Return true if this is a plain-old-data type (C++ 3.9p10) |
| bool Type::isPODType() const { |
| // The compiler shouldn't query this for incomplete types, but the user might. |
| // We return false for that case. |
| if (isIncompleteType()) |
| return false; |
| |
| switch (CanonicalType->getTypeClass()) { |
| // Everything not explicitly mentioned is not POD. |
| default: return false; |
| case ExtQual: |
| return cast<ExtQualType>(CanonicalType)->getBaseType()->isPODType(); |
| case VariableArray: |
| case ConstantArray: |
| // IncompleteArray is caught by isIncompleteType() above. |
| return cast<ArrayType>(CanonicalType)->getElementType()->isPODType(); |
| |
| case Builtin: |
| case Complex: |
| case Pointer: |
| case MemberPointer: |
| case Vector: |
| case ExtVector: |
| case ObjCQualifiedId: |
| return true; |
| |
| case Enum: |
| return true; |
| |
| case Record: |
| if (CXXRecordDecl *ClassDecl |
| = dyn_cast<CXXRecordDecl>(cast<RecordType>(CanonicalType)->getDecl())) |
| return ClassDecl->isPOD(); |
| |
| // C struct/union is POD. |
| return true; |
| } |
| } |
| |
| bool Type::isPromotableIntegerType() const { |
| if (const BuiltinType *BT = getAsBuiltinType()) |
| switch (BT->getKind()) { |
| case BuiltinType::Bool: |
| case BuiltinType::Char_S: |
| case BuiltinType::Char_U: |
| case BuiltinType::SChar: |
| case BuiltinType::UChar: |
| case BuiltinType::Short: |
| case BuiltinType::UShort: |
| return true; |
| default: |
| return false; |
| } |
| return false; |
| } |
| |
| bool Type::isNullPtrType() const { |
| if (const BuiltinType *BT = getAsBuiltinType()) |
| return BT->getKind() == BuiltinType::NullPtr; |
| return false; |
| } |
| |
| const char *BuiltinType::getName(bool CPlusPlus) const { |
| switch (getKind()) { |
| default: assert(0 && "Unknown builtin type!"); |
| case Void: return "void"; |
| case Bool: return CPlusPlus? "bool" : "_Bool"; |
| case Char_S: return "char"; |
| case Char_U: return "char"; |
| case SChar: return "signed char"; |
| case Short: return "short"; |
| case Int: return "int"; |
| case Long: return "long"; |
| case LongLong: return "long long"; |
| case Int128: return "__int128_t"; |
| case UChar: return "unsigned char"; |
| case UShort: return "unsigned short"; |
| case UInt: return "unsigned int"; |
| case ULong: return "unsigned long"; |
| case ULongLong: return "unsigned long long"; |
| case UInt128: return "__uint128_t"; |
| case Float: return "float"; |
| case Double: return "double"; |
| case LongDouble: return "long double"; |
| case WChar: return "wchar_t"; |
| case NullPtr: return "nullptr_t"; |
| case Overload: return "<overloaded function type>"; |
| case Dependent: return "<dependent type>"; |
| } |
| } |
| |
| void FunctionProtoType::Profile(llvm::FoldingSetNodeID &ID, QualType Result, |
| arg_type_iterator ArgTys, |
| unsigned NumArgs, bool isVariadic, |
| unsigned TypeQuals, bool hasExceptionSpec, |
| bool anyExceptionSpec, unsigned NumExceptions, |
| exception_iterator Exs) { |
| ID.AddPointer(Result.getAsOpaquePtr()); |
| for (unsigned i = 0; i != NumArgs; ++i) |
| ID.AddPointer(ArgTys[i].getAsOpaquePtr()); |
| ID.AddInteger(isVariadic); |
| ID.AddInteger(TypeQuals); |
| ID.AddInteger(hasExceptionSpec); |
| if (hasExceptionSpec) { |
| ID.AddInteger(anyExceptionSpec); |
| for(unsigned i = 0; i != NumExceptions; ++i) |
| ID.AddPointer(Exs[i].getAsOpaquePtr()); |
| } |
| } |
| |
| void FunctionProtoType::Profile(llvm::FoldingSetNodeID &ID) { |
| Profile(ID, getResultType(), arg_type_begin(), NumArgs, isVariadic(), |
| getTypeQuals(), hasExceptionSpec(), hasAnyExceptionSpec(), |
| getNumExceptions(), exception_begin()); |
| } |
| |
| void ObjCQualifiedInterfaceType::Profile(llvm::FoldingSetNodeID &ID, |
| const ObjCInterfaceDecl *Decl, |
| ObjCProtocolDecl **protocols, |
| unsigned NumProtocols) { |
| ID.AddPointer(Decl); |
| for (unsigned i = 0; i != NumProtocols; i++) |
| ID.AddPointer(protocols[i]); |
| } |
| |
| void ObjCQualifiedInterfaceType::Profile(llvm::FoldingSetNodeID &ID) { |
| Profile(ID, getDecl(), &Protocols[0], getNumProtocols()); |
| } |
| |
| void ObjCQualifiedIdType::Profile(llvm::FoldingSetNodeID &ID, |
| ObjCProtocolDecl **protocols, |
| unsigned NumProtocols) { |
| for (unsigned i = 0; i != NumProtocols; i++) |
| ID.AddPointer(protocols[i]); |
| } |
| |
| void ObjCQualifiedIdType::Profile(llvm::FoldingSetNodeID &ID) { |
| Profile(ID, &Protocols[0], getNumProtocols()); |
| } |
| |
| /// LookThroughTypedefs - Return the ultimate type this typedef corresponds to |
| /// potentially looking through *all* consequtive typedefs. This returns the |
| /// sum of the type qualifiers, so if you have: |
| /// typedef const int A; |
| /// typedef volatile A B; |
| /// looking through the typedefs for B will give you "const volatile A". |
| /// |
| QualType TypedefType::LookThroughTypedefs() const { |
| // Usually, there is only a single level of typedefs, be fast in that case. |
| QualType FirstType = getDecl()->getUnderlyingType(); |
| if (!isa<TypedefType>(FirstType)) |
| return FirstType; |
| |
| // Otherwise, do the fully general loop. |
| unsigned TypeQuals = 0; |
| const TypedefType *TDT = this; |
| while (1) { |
| QualType CurType = TDT->getDecl()->getUnderlyingType(); |
| |
| |
| /// FIXME: |
| /// FIXME: This is incorrect for ExtQuals! |
| /// FIXME: |
| TypeQuals |= CurType.getCVRQualifiers(); |
| |
| TDT = dyn_cast<TypedefType>(CurType); |
| if (TDT == 0) |
| return QualType(CurType.getTypePtr(), TypeQuals); |
| } |
| } |
| |
| TypeOfExprType::TypeOfExprType(Expr *E, QualType can) |
| : Type(TypeOfExpr, can, E->isTypeDependent()), TOExpr(E) { |
| assert(!isa<TypedefType>(can) && "Invalid canonical type"); |
| } |
| |
| TagType::TagType(TypeClass TC, TagDecl *D, QualType can) |
| : Type(TC, can, D->isDependentType()), decl(D, 0) {} |
| |
| bool RecordType::classof(const TagType *TT) { |
| return isa<RecordDecl>(TT->getDecl()); |
| } |
| |
| bool EnumType::classof(const TagType *TT) { |
| return isa<EnumDecl>(TT->getDecl()); |
| } |
| |
| bool |
| TemplateSpecializationType:: |
| anyDependentTemplateArguments(const TemplateArgument *Args, unsigned NumArgs) { |
| for (unsigned Idx = 0; Idx < NumArgs; ++Idx) { |
| switch (Args[Idx].getKind()) { |
| case TemplateArgument::Type: |
| if (Args[Idx].getAsType()->isDependentType()) |
| return true; |
| break; |
| |
| case TemplateArgument::Declaration: |
| case TemplateArgument::Integral: |
| // Never dependent |
| break; |
| |
| case TemplateArgument::Expression: |
| if (Args[Idx].getAsExpr()->isTypeDependent() || |
| Args[Idx].getAsExpr()->isValueDependent()) |
| return true; |
| break; |
| } |
| } |
| |
| return false; |
| } |
| |
| TemplateSpecializationType:: |
| TemplateSpecializationType(TemplateName T, const TemplateArgument *Args, |
| unsigned NumArgs, QualType Canon) |
| : Type(TemplateSpecialization, |
| Canon.isNull()? QualType(this, 0) : Canon, |
| T.isDependent() || anyDependentTemplateArguments(Args, NumArgs)), |
| Template(T), NumArgs(NumArgs) |
| { |
| assert((!Canon.isNull() || |
| T.isDependent() || anyDependentTemplateArguments(Args, NumArgs)) && |
| "No canonical type for non-dependent class template specialization"); |
| |
| TemplateArgument *TemplateArgs |
| = reinterpret_cast<TemplateArgument *>(this + 1); |
| for (unsigned Arg = 0; Arg < NumArgs; ++Arg) |
| new (&TemplateArgs[Arg]) TemplateArgument(Args[Arg]); |
| } |
| |
| void TemplateSpecializationType::Destroy(ASTContext& C) { |
| for (unsigned Arg = 0; Arg < NumArgs; ++Arg) { |
| // FIXME: Not all expressions get cloned, so we can't yet perform |
| // this destruction. |
| // if (Expr *E = getArg(Arg).getAsExpr()) |
| // E->Destroy(C); |
| } |
| } |
| |
| TemplateSpecializationType::iterator |
| TemplateSpecializationType::end() const { |
| return begin() + getNumArgs(); |
| } |
| |
| const TemplateArgument & |
| TemplateSpecializationType::getArg(unsigned Idx) const { |
| assert(Idx < getNumArgs() && "Template argument out of range"); |
| return getArgs()[Idx]; |
| } |
| |
| void |
| TemplateSpecializationType::Profile(llvm::FoldingSetNodeID &ID, |
| TemplateName T, |
| const TemplateArgument *Args, |
| unsigned NumArgs) { |
| T.Profile(ID); |
| for (unsigned Idx = 0; Idx < NumArgs; ++Idx) |
| Args[Idx].Profile(ID); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Type Printing |
| //===----------------------------------------------------------------------===// |
| |
| void QualType::dump(const char *msg) const { |
| PrintingPolicy Policy; |
| std::string R = "identifier"; |
| getAsStringInternal(R, Policy); |
| if (msg) |
| fprintf(stderr, "%s: %s\n", msg, R.c_str()); |
| else |
| fprintf(stderr, "%s\n", R.c_str()); |
| } |
| void QualType::dump() const { |
| dump(""); |
| } |
| |
| void Type::dump() const { |
| std::string S = "identifier"; |
| getAsStringInternal(S, PrintingPolicy()); |
| fprintf(stderr, "%s\n", S.c_str()); |
| } |
| |
| |
| |
| static void AppendTypeQualList(std::string &S, unsigned TypeQuals) { |
| // Note: funkiness to ensure we get a space only between quals. |
| bool NonePrinted = true; |
| if (TypeQuals & QualType::Const) |
| S += "const", NonePrinted = false; |
| if (TypeQuals & QualType::Volatile) |
| S += (NonePrinted+" volatile"), NonePrinted = false; |
| if (TypeQuals & QualType::Restrict) |
| S += (NonePrinted+" restrict"), NonePrinted = false; |
| } |
| |
| std::string QualType::getAsString() const { |
| std::string S; |
| getAsStringInternal(S, PrintingPolicy()); |
| return S; |
| } |
| |
| void |
| QualType::getAsStringInternal(std::string &S, |
| const PrintingPolicy &Policy) const { |
| if (isNull()) { |
| S += "NULL TYPE"; |
| return; |
| } |
| |
| // Print qualifiers as appropriate. |
| if (unsigned Tq = getCVRQualifiers()) { |
| std::string TQS; |
| AppendTypeQualList(TQS, Tq); |
| if (!S.empty()) |
| S = TQS + ' ' + S; |
| else |
| S = TQS; |
| } |
| |
| getTypePtr()->getAsStringInternal(S, Policy); |
| } |
| |
| void BuiltinType::getAsStringInternal(std::string &S, |
| const PrintingPolicy &Policy) const { |
| if (S.empty()) { |
| S = getName(Policy.CPlusPlus); |
| } else { |
| // Prefix the basic type, e.g. 'int X'. |
| S = ' ' + S; |
| S = getName(Policy.CPlusPlus) + S; |
| } |
| } |
| |
| void FixedWidthIntType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| // FIXME: Once we get bitwidth attribute, write as |
| // "int __attribute__((bitwidth(x)))". |
| std::string prefix = "__clang_fixedwidth"; |
| prefix += llvm::utostr_32(Width); |
| prefix += (char)(Signed ? 'S' : 'U'); |
| if (S.empty()) { |
| S = prefix; |
| } else { |
| // Prefix the basic type, e.g. 'int X'. |
| S = prefix + S; |
| } |
| } |
| |
| |
| void ComplexType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| ElementType->getAsStringInternal(S, Policy); |
| S = "_Complex " + S; |
| } |
| |
| void ExtQualType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| bool NeedsSpace = false; |
| if (AddressSpace) { |
| S = "__attribute__((address_space("+llvm::utostr_32(AddressSpace)+")))" + S; |
| NeedsSpace = true; |
| } |
| if (GCAttrType != QualType::GCNone) { |
| if (NeedsSpace) |
| S += ' '; |
| S += "__attribute__((objc_gc("; |
| if (GCAttrType == QualType::Weak) |
| S += "weak"; |
| else |
| S += "strong"; |
| S += ")))"; |
| } |
| BaseType->getAsStringInternal(S, Policy); |
| } |
| |
| void PointerType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S = '*' + S; |
| |
| // Handle things like 'int (*A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(getPointeeType())) |
| S = '(' + S + ')'; |
| |
| getPointeeType().getAsStringInternal(S, Policy); |
| } |
| |
| void BlockPointerType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S = '^' + S; |
| PointeeType.getAsStringInternal(S, Policy); |
| } |
| |
| void LValueReferenceType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S = '&' + S; |
| |
| // Handle things like 'int (&A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(getPointeeType())) |
| S = '(' + S + ')'; |
| |
| getPointeeType().getAsStringInternal(S, Policy); |
| } |
| |
| void RValueReferenceType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S = "&&" + S; |
| |
| // Handle things like 'int (&&A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(getPointeeType())) |
| S = '(' + S + ')'; |
| |
| getPointeeType().getAsStringInternal(S, Policy); |
| } |
| |
| void MemberPointerType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| std::string C; |
| Class->getAsStringInternal(C, Policy); |
| C += "::*"; |
| S = C + S; |
| |
| // Handle things like 'int (Cls::*A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(getPointeeType())) |
| S = '(' + S + ')'; |
| |
| getPointeeType().getAsStringInternal(S, Policy); |
| } |
| |
| void ConstantArrayType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S += '['; |
| S += llvm::utostr(getSize().getZExtValue()); |
| S += ']'; |
| |
| getElementType().getAsStringInternal(S, Policy); |
| } |
| |
| void IncompleteArrayType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S += "[]"; |
| |
| getElementType().getAsStringInternal(S, Policy); |
| } |
| |
| void VariableArrayType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S += '['; |
| |
| if (getIndexTypeQualifier()) { |
| AppendTypeQualList(S, getIndexTypeQualifier()); |
| S += ' '; |
| } |
| |
| if (getSizeModifier() == Static) |
| S += "static"; |
| else if (getSizeModifier() == Star) |
| S += '*'; |
| |
| if (getSizeExpr()) { |
| std::string SStr; |
| llvm::raw_string_ostream s(SStr); |
| getSizeExpr()->printPretty(s, 0, Policy); |
| S += s.str(); |
| } |
| S += ']'; |
| |
| getElementType().getAsStringInternal(S, Policy); |
| } |
| |
| void DependentSizedArrayType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S += '['; |
| |
| if (getIndexTypeQualifier()) { |
| AppendTypeQualList(S, getIndexTypeQualifier()); |
| S += ' '; |
| } |
| |
| if (getSizeModifier() == Static) |
| S += "static"; |
| else if (getSizeModifier() == Star) |
| S += '*'; |
| |
| if (getSizeExpr()) { |
| std::string SStr; |
| llvm::raw_string_ostream s(SStr); |
| getSizeExpr()->printPretty(s, 0, Policy); |
| S += s.str(); |
| } |
| S += ']'; |
| |
| getElementType().getAsStringInternal(S, Policy); |
| } |
| |
| void VectorType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| // FIXME: We prefer to print the size directly here, but have no way |
| // to get the size of the type. |
| S += " __attribute__((__vector_size__("; |
| S += llvm::utostr_32(NumElements); // convert back to bytes. |
| S += " * sizeof(" + ElementType.getAsString() + "))))"; |
| ElementType.getAsStringInternal(S, Policy); |
| } |
| |
| void ExtVectorType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| S += " __attribute__((ext_vector_type("; |
| S += llvm::utostr_32(NumElements); |
| S += ")))"; |
| ElementType.getAsStringInternal(S, Policy); |
| } |
| |
| void TypeOfExprType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typeof(e) X'. |
| InnerString = ' ' + InnerString; |
| std::string Str; |
| llvm::raw_string_ostream s(Str); |
| getUnderlyingExpr()->printPretty(s, 0, Policy); |
| InnerString = "typeof " + s.str() + InnerString; |
| } |
| |
| void TypeOfType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typeof(t) X'. |
| InnerString = ' ' + InnerString; |
| std::string Tmp; |
| getUnderlyingType().getAsStringInternal(Tmp, Policy); |
| InnerString = "typeof(" + Tmp + ")" + InnerString; |
| } |
| |
| void FunctionNoProtoType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| // If needed for precedence reasons, wrap the inner part in grouping parens. |
| if (!S.empty()) |
| S = "(" + S + ")"; |
| |
| S += "()"; |
| getResultType().getAsStringInternal(S, Policy); |
| } |
| |
| void FunctionProtoType::getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const { |
| // If needed for precedence reasons, wrap the inner part in grouping parens. |
| if (!S.empty()) |
| S = "(" + S + ")"; |
| |
| S += "("; |
| std::string Tmp; |
| for (unsigned i = 0, e = getNumArgs(); i != e; ++i) { |
| if (i) S += ", "; |
| getArgType(i).getAsStringInternal(Tmp, Policy); |
| S += Tmp; |
| Tmp.clear(); |
| } |
| |
| if (isVariadic()) { |
| if (getNumArgs()) |
| S += ", "; |
| S += "..."; |
| } else if (getNumArgs() == 0) { |
| // Do not emit int() if we have a proto, emit 'int(void)'. |
| S += "void"; |
| } |
| |
| S += ")"; |
| getResultType().getAsStringInternal(S, Policy); |
| } |
| |
| |
| void TypedefType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| InnerString = ' ' + InnerString; |
| InnerString = getDecl()->getIdentifier()->getName() + InnerString; |
| } |
| |
| void TemplateTypeParmType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'parmname X'. |
| InnerString = ' ' + InnerString; |
| |
| if (!Name) |
| InnerString = "type-parameter-" + llvm::utostr_32(Depth) + '-' + |
| llvm::utostr_32(Index) + InnerString; |
| else |
| InnerString = Name->getName() + InnerString; |
| } |
| |
| std::string |
| TemplateSpecializationType::PrintTemplateArgumentList( |
| const TemplateArgument *Args, |
| unsigned NumArgs, |
| const PrintingPolicy &Policy) { |
| std::string SpecString; |
| SpecString += '<'; |
| for (unsigned Arg = 0; Arg < NumArgs; ++Arg) { |
| if (Arg) |
| SpecString += ", "; |
| |
| // Print the argument into a string. |
| std::string ArgString; |
| switch (Args[Arg].getKind()) { |
| case TemplateArgument::Type: |
| Args[Arg].getAsType().getAsStringInternal(ArgString, Policy); |
| break; |
| |
| case TemplateArgument::Declaration: |
| ArgString = cast<NamedDecl>(Args[Arg].getAsDecl())->getNameAsString(); |
| break; |
| |
| case TemplateArgument::Integral: |
| ArgString = Args[Arg].getAsIntegral()->toString(10, true); |
| break; |
| |
| case TemplateArgument::Expression: { |
| llvm::raw_string_ostream s(ArgString); |
| Args[Arg].getAsExpr()->printPretty(s, 0, Policy); |
| break; |
| } |
| } |
| |
| // If this is the first argument and its string representation |
| // begins with the global scope specifier ('::foo'), add a space |
| // to avoid printing the diagraph '<:'. |
| if (!Arg && !ArgString.empty() && ArgString[0] == ':') |
| SpecString += ' '; |
| |
| SpecString += ArgString; |
| } |
| |
| // If the last character of our string is '>', add another space to |
| // keep the two '>''s separate tokens. We don't *have* to do this in |
| // C++0x, but it's still good hygiene. |
| if (SpecString[SpecString.size() - 1] == '>') |
| SpecString += ' '; |
| |
| SpecString += '>'; |
| |
| return SpecString; |
| } |
| |
| void |
| TemplateSpecializationType:: |
| getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| std::string SpecString; |
| |
| { |
| llvm::raw_string_ostream OS(SpecString); |
| Template.print(OS, Policy); |
| } |
| |
| SpecString += PrintTemplateArgumentList(getArgs(), getNumArgs(), Policy); |
| if (InnerString.empty()) |
| InnerString.swap(SpecString); |
| else |
| InnerString = SpecString + ' ' + InnerString; |
| } |
| |
| void QualifiedNameType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| std::string MyString; |
| |
| { |
| llvm::raw_string_ostream OS(MyString); |
| NNS->print(OS, Policy); |
| } |
| |
| std::string TypeStr; |
| PrintingPolicy InnerPolicy(Policy); |
| InnerPolicy.SuppressTagKind = true; |
| NamedType.getAsStringInternal(TypeStr, InnerPolicy); |
| |
| MyString += TypeStr; |
| if (InnerString.empty()) |
| InnerString.swap(MyString); |
| else |
| InnerString = MyString + ' ' + InnerString; |
| } |
| |
| void TypenameType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| std::string MyString; |
| |
| { |
| llvm::raw_string_ostream OS(MyString); |
| OS << "typename "; |
| NNS->print(OS, Policy); |
| |
| if (const IdentifierInfo *Ident = getIdentifier()) |
| OS << Ident->getName(); |
| else if (const TemplateSpecializationType *Spec = getTemplateId()) { |
| Spec->getTemplateName().print(OS, Policy, true); |
| OS << TemplateSpecializationType::PrintTemplateArgumentList( |
| Spec->getArgs(), |
| Spec->getNumArgs(), |
| Policy); |
| } |
| } |
| |
| if (InnerString.empty()) |
| InnerString.swap(MyString); |
| else |
| InnerString = MyString + ' ' + InnerString; |
| } |
| |
| void ObjCInterfaceType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| InnerString = ' ' + InnerString; |
| InnerString = getDecl()->getIdentifier()->getName() + InnerString; |
| } |
| |
| void |
| ObjCQualifiedInterfaceType::getAsStringInternal(std::string &InnerString, |
| const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| InnerString = ' ' + InnerString; |
| std::string ObjCQIString = getDecl()->getNameAsString(); |
| ObjCQIString += '<'; |
| bool isFirst = true; |
| for (qual_iterator I = qual_begin(), E = qual_end(); I != E; ++I) { |
| if (isFirst) |
| isFirst = false; |
| else |
| ObjCQIString += ','; |
| ObjCQIString += (*I)->getNameAsString(); |
| } |
| ObjCQIString += '>'; |
| InnerString = ObjCQIString + InnerString; |
| } |
| |
| void ObjCQualifiedIdType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| InnerString = ' ' + InnerString; |
| std::string ObjCQIString = "id"; |
| ObjCQIString += '<'; |
| for (qual_iterator I = qual_begin(), E = qual_end(); I != E; ++I) { |
| ObjCQIString += (*I)->getNameAsString(); |
| if (I+1 != E) |
| ObjCQIString += ','; |
| } |
| ObjCQIString += '>'; |
| InnerString = ObjCQIString + InnerString; |
| } |
| |
| void TagType::getAsStringInternal(std::string &InnerString, const PrintingPolicy &Policy) const { |
| if (!InnerString.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| InnerString = ' ' + InnerString; |
| |
| const char *Kind = Policy.SuppressTagKind? 0 : getDecl()->getKindName(); |
| const char *ID; |
| if (const IdentifierInfo *II = getDecl()->getIdentifier()) |
| ID = II->getName(); |
| else if (TypedefDecl *Typedef = getDecl()->getTypedefForAnonDecl()) { |
| Kind = 0; |
| assert(Typedef->getIdentifier() && "Typedef without identifier?"); |
| ID = Typedef->getIdentifier()->getName(); |
| } else |
| ID = "<anonymous>"; |
| |
| // If this is a class template specialization, print the template |
| // arguments. |
| if (ClassTemplateSpecializationDecl *Spec |
| = dyn_cast<ClassTemplateSpecializationDecl>(getDecl())) { |
| const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); |
| std::string TemplateArgsStr |
| = TemplateSpecializationType::PrintTemplateArgumentList( |
| TemplateArgs.getFlatArgumentList(), |
| TemplateArgs.flat_size(), |
| Policy); |
| InnerString = TemplateArgsStr + InnerString; |
| } |
| |
| if (Kind) { |
| // Compute the full nested-name-specifier for this type. In C, |
| // this will always be empty. |
| std::string ContextStr; |
| for (DeclContext *DC = getDecl()->getDeclContext(); |
| !DC->isTranslationUnit(); DC = DC->getParent()) { |
| std::string MyPart; |
| if (NamespaceDecl *NS = dyn_cast<NamespaceDecl>(DC)) { |
| if (NS->getIdentifier()) |
| MyPart = NS->getNameAsString(); |
| } else if (ClassTemplateSpecializationDecl *Spec |
| = dyn_cast<ClassTemplateSpecializationDecl>(DC)) { |
| const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); |
| std::string TemplateArgsStr |
| = TemplateSpecializationType::PrintTemplateArgumentList( |
| TemplateArgs.getFlatArgumentList(), |
| TemplateArgs.flat_size(), |
| Policy); |
| MyPart = Spec->getIdentifier()->getName() + TemplateArgsStr; |
| } else if (TagDecl *Tag = dyn_cast<TagDecl>(DC)) { |
| if (TypedefDecl *Typedef = Tag->getTypedefForAnonDecl()) |
| MyPart = Typedef->getIdentifier()->getName(); |
| else if (Tag->getIdentifier()) |
| MyPart = Tag->getIdentifier()->getName(); |
| } |
| |
| if (!MyPart.empty()) |
| ContextStr = MyPart + "::" + ContextStr; |
| } |
| |
| InnerString = std::string(Kind) + " " + ContextStr + ID + InnerString; |
| } else |
| InnerString = ID + InnerString; |
| } |