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author | dim <dim@FreeBSD.org> | 2011-06-12 15:46:16 +0000 |
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committer | dim <dim@FreeBSD.org> | 2011-06-12 15:46:16 +0000 |
commit | c49018d9cce52d8c9f34b44865ec3ba8e89a1488 (patch) | |
tree | c5e9e10bc189de0058aa763c47b9920a8351b7df /lib/AST/Type.cpp | |
parent | 110eaaceddcec790f7e6a5e3bf1261c9aa1e73ab (diff) | |
download | FreeBSD-src-c49018d9cce52d8c9f34b44865ec3ba8e89a1488.zip FreeBSD-src-c49018d9cce52d8c9f34b44865ec3ba8e89a1488.tar.gz |
Vendor import of clang trunk r132879:
http://llvm.org/svn/llvm-project/cfe/trunk@132879
Diffstat (limited to 'lib/AST/Type.cpp')
-rw-r--r-- | lib/AST/Type.cpp | 116 |
1 files changed, 98 insertions, 18 deletions
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp index 9eb497b..d2875528 100644 --- a/lib/AST/Type.cpp +++ b/lib/AST/Type.cpp @@ -517,7 +517,7 @@ bool Type::isIntegerType() const { if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) // Incomplete enum types are not treated as integer types. // FIXME: In C++, enum types are never integer types. - return ET->getDecl()->isComplete(); + return ET->getDecl()->isComplete() && !ET->getDecl()->isScoped(); return false; } @@ -641,13 +641,27 @@ bool Type::isSignedIntegerType() const { if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) { // Incomplete enum types are not treated as integer types. // FIXME: In C++, enum types are never integer types. - if (ET->getDecl()->isComplete()) + if (ET->getDecl()->isComplete() && !ET->getDecl()->isScoped()) return ET->getDecl()->getIntegerType()->isSignedIntegerType(); } return false; } +bool Type::isSignedIntegerOrEnumerationType() const { + if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) { + return BT->getKind() >= BuiltinType::Char_S && + BT->getKind() <= BuiltinType::Int128; + } + + if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) { + if (ET->getDecl()->isComplete()) + return ET->getDecl()->getIntegerType()->isSignedIntegerType(); + } + + return false; +} + bool Type::hasSignedIntegerRepresentation() const { if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) return VT->getElementType()->isSignedIntegerType(); @@ -667,13 +681,27 @@ bool Type::isUnsignedIntegerType() const { if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) { // Incomplete enum types are not treated as integer types. // FIXME: In C++, enum types are never integer types. - if (ET->getDecl()->isComplete()) + if (ET->getDecl()->isComplete() && !ET->getDecl()->isScoped()) return ET->getDecl()->getIntegerType()->isUnsignedIntegerType(); } return false; } +bool Type::isUnsignedIntegerOrEnumerationType() const { + if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType)) { + return BT->getKind() >= BuiltinType::Bool && + BT->getKind() <= BuiltinType::UInt128; + } + + if (const EnumType *ET = dyn_cast<EnumType>(CanonicalType)) { + if (ET->getDecl()->isComplete()) + return ET->getDecl()->getIntegerType()->isUnsignedIntegerType(); + } + + return false; +} + bool Type::hasUnsignedIntegerRepresentation() const { if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType)) return VT->getElementType()->isUnsignedIntegerType(); @@ -954,10 +982,37 @@ bool Type::isTrivialType() const { if (const RecordType *RT = BaseTy->getAs<RecordType>()) { if (const CXXRecordDecl *ClassDecl = dyn_cast<CXXRecordDecl>(RT->getDecl())) { - // C++0x [class]p5: - // A trivial class is a class that has a trivial default constructor - if (!ClassDecl->hasTrivialConstructor()) return false; - // and is trivially copyable. + if (!ClassDecl->isTrivial()) return false; + } + + return true; + } + + // No other types can match. + return false; +} + +bool Type::isTriviallyCopyableType() const { + if (isDependentType()) + return false; + + // C++0x [basic.types]p9 + // Scalar types, trivially copyable class types, arrays of such types, and + // cv-qualified versions of these types are collectively called trivial + // types. + const Type *BaseTy = getBaseElementTypeUnsafe(); + assert(BaseTy && "NULL element type"); + + // Return false for incomplete types after skipping any incomplete array types + // which are expressly allowed by the standard and thus our API. + if (BaseTy->isIncompleteType()) + return false; + + // As an extension, Clang treats vector types as Scalar types. + if (BaseTy->isScalarType() || BaseTy->isVectorType()) return true; + if (const RecordType *RT = BaseTy->getAs<RecordType>()) { + if (const CXXRecordDecl *ClassDecl = + dyn_cast<CXXRecordDecl>(RT->getDecl())) { if (!ClassDecl->isTriviallyCopyable()) return false; } @@ -1027,11 +1082,7 @@ bool Type::isCXX11PODType() const { dyn_cast<CXXRecordDecl>(RT->getDecl())) { // C++11 [class]p10: // A POD struct is a non-union class that is both a trivial class [...] - // C++11 [class]p5: - // A trivial class is a class that has a trivial default constructor - if (!ClassDecl->hasTrivialConstructor()) return false; - // and is trivially copyable. - if (!ClassDecl->isTriviallyCopyable()) return false; + if (!ClassDecl->isTrivial()) return false; // C++11 [class]p10: // A POD struct is a non-union class that is both a trivial class and @@ -1484,6 +1535,16 @@ static TagDecl *getInterestingTagDecl(TagDecl *decl) { return decl; } +UnaryTransformType::UnaryTransformType(QualType BaseType, + QualType UnderlyingType, + UTTKind UKind, + QualType CanonicalType) + : Type(UnaryTransform, CanonicalType, UnderlyingType->isDependentType(), + UnderlyingType->isVariablyModifiedType(), + BaseType->containsUnexpandedParameterPack()) + , BaseType(BaseType), UnderlyingType(UnderlyingType), UKind(UKind) +{} + TagDecl *TagType::getDecl() const { return getInterestingTagDecl(decl); } @@ -1559,13 +1620,13 @@ anyDependentTemplateArguments(const TemplateArgument *Args, unsigned N) { TemplateSpecializationType:: TemplateSpecializationType(TemplateName T, - const TemplateArgument *Args, - unsigned NumArgs, QualType Canon) + const TemplateArgument *Args, unsigned NumArgs, + QualType Canon, QualType AliasedType) : Type(TemplateSpecialization, Canon.isNull()? QualType(this, 0) : Canon, - T.isDependent(), false, T.containsUnexpandedParameterPack()), - Template(T), NumArgs(NumArgs) -{ + Canon.isNull()? T.isDependent() : Canon->isDependentType(), + false, T.containsUnexpandedParameterPack()), + Template(T), NumArgs(NumArgs) { assert(!T.getAsDependentTemplateName() && "Use DependentTemplateSpecializationType for dependent template-name"); assert((!Canon.isNull() || @@ -1576,7 +1637,12 @@ TemplateSpecializationType(TemplateName T, = reinterpret_cast<TemplateArgument *>(this + 1); for (unsigned Arg = 0; Arg < NumArgs; ++Arg) { // Update dependent and variably-modified bits. - if (Args[Arg].isDependent()) + // If the canonical type exists and is non-dependent, the template + // specialization type can be non-dependent even if one of the type + // arguments is. Given: + // template<typename T> using U = int; + // U<T> is always non-dependent, irrespective of the type T. + if (Canon.isNull() && Args[Arg].isDependent()) setDependent(); if (Args[Arg].getKind() == TemplateArgument::Type && Args[Arg].getAsType()->isVariablyModifiedType()) @@ -1586,6 +1652,15 @@ TemplateSpecializationType(TemplateName T, new (&TemplateArgs[Arg]) TemplateArgument(Args[Arg]); } + + // Store the aliased type if this is a type alias template specialization. + bool IsTypeAlias = !AliasedType.isNull(); + assert(IsTypeAlias == isTypeAlias() && + "allocated wrong size for type alias"); + if (IsTypeAlias) { + TemplateArgument *Begin = reinterpret_cast<TemplateArgument *>(this + 1); + *reinterpret_cast<QualType*>(Begin + getNumArgs()) = AliasedType; + } } void @@ -1599,6 +1674,11 @@ TemplateSpecializationType::Profile(llvm::FoldingSetNodeID &ID, Args[Idx].Profile(ID, Context); } +bool TemplateSpecializationType::isTypeAlias() const { + TemplateDecl *D = Template.getAsTemplateDecl(); + return D && isa<TypeAliasTemplateDecl>(D); +} + QualType QualifierCollector::apply(const ASTContext &Context, QualType QT) const { if (!hasNonFastQualifiers()) |