Represents a C++ nested name specifier, such as "::std::vector<int>::". More...

#include <NestedNameSpecifier.h>

Inheritance diagram for clang::NestedNameSpecifier:

Collaboration diagram for clang::NestedNameSpecifier:

Public Types
enum	SpecifierKind { Identifier, Namespace, NamespaceAlias, TypeSpec, TypeSpecWithTemplate, Global }
	The kind of specifier that completes this nested name specifier. More...
Public Member Functions
NestedNameSpecifier *	getPrefix () const
	Return the prefix of this nested name specifier.
SpecifierKind	getKind () const
	Determine what kind of nested name specifier is stored.
IdentifierInfo *	getAsIdentifier () const
	Retrieve the identifier stored in this nested name specifier.
NamespaceDecl *	getAsNamespace () const
	Retrieve the namespace stored in this nested name specifier.
NamespaceAliasDecl *	getAsNamespaceAlias () const
	Retrieve the namespace alias stored in this nested name specifier.
const Type *	getAsType () const
	Retrieve the type stored in this nested name specifier.
bool	isDependent () const
	Whether this nested name specifier refers to a dependent type or not.
bool	isInstantiationDependent () const
	Whether this nested name specifier involves a template parameter.
bool	containsUnexpandedParameterPack () const
	Whether this nested-name-specifier contains an unexpanded parameter pack (for C++0x variadic templates).
void	print (raw_ostream &OS, const PrintingPolicy &Policy) const
	Print this nested name specifier to the given output stream.
void	Profile (llvm::FoldingSetNodeID &ID) const
void	dump (const LangOptions &LO)
	Dump the nested name specifier to standard output to aid in debugging.
Static Public Member Functions
static NestedNameSpecifier *	Create (const ASTContext &Context, NestedNameSpecifier Prefix, IdentifierInfo II)
	Builds a specifier combining a prefix and an identifier.
static NestedNameSpecifier *	Create (const ASTContext &Context, NestedNameSpecifier Prefix, NamespaceDecl NS)
	Builds a nested name specifier that names a namespace.
static NestedNameSpecifier *	Create (const ASTContext &Context, NestedNameSpecifier Prefix, NamespaceAliasDecl Alias)
	Builds a nested name specifier that names a namespace alias.
static NestedNameSpecifier *	Create (const ASTContext &Context, NestedNameSpecifier Prefix, bool Template, const Type T)
	Builds a nested name specifier that names a type.
static NestedNameSpecifier *	Create (const ASTContext &Context, IdentifierInfo *II)
	Builds a specifier that consists of just an identifier.
static NestedNameSpecifier *	GlobalSpecifier (const ASTContext &Context)
	Returns the nested name specifier representing the global scope.

Detailed Description

Represents a C++ nested name specifier, such as "::std::vector<int>::".

C++ nested name specifiers are the prefixes to qualified namespaces. For example, "foo::" in "foo::x" is a nested name specifier. Nested name specifiers are made up of a sequence of specifiers, each of which can be a namespace, type, identifier (for dependent names), decltype specifier, or the global specifier ('::'). The last two specifiers can only appear at the start of a nested-namespace-specifier.

Definition at line 42 of file NestedNameSpecifier.h.

Member Enumeration Documentation

enum clang::NestedNameSpecifier::SpecifierKind

The kind of specifier that completes this nested name specifier.

Enumerator:

Identifier	An identifier, stored as an IdentifierInfo*.
Namespace	A namespace, stored as a NamespaceDecl*.
NamespaceAlias	A namespace alias, stored as a NamespaceAliasDecl*.
TypeSpec	A type, stored as a Type*.
TypeSpecWithTemplate	A type that was preceded by the 'template' keyword, stored as a Type*.
Global	The global specifier '::'. There is no stored value.

Definition at line 72 of file NestedNameSpecifier.h.

Member Function Documentation

bool NestedNameSpecifier::containsUnexpandedParameterPack ( ) const

Whether this nested-name-specifier contains an unexpanded parameter pack (for C++0x variadic templates).

Definition at line 197 of file NestedNameSpecifier.cpp.

References containsUnexpandedParameterPack(), clang::Type::containsUnexpandedParameterPack(), getAsType(), getKind(), getPrefix(), Global, Identifier, Namespace, NamespaceAlias, TypeSpec, and TypeSpecWithTemplate.

Referenced by containsUnexpandedParameterPack(), and clang::Sema::DiagnoseUnexpandedParameterPack().

NestedNameSpecifier * NestedNameSpecifier::Create	(	const ASTContext &	Context,
		NestedNameSpecifier *	Prefix,
		IdentifierInfo *	II
	)		`[static]`

Builds a specifier combining a prefix and an identifier.

The prefix must be dependent, since nested name specifiers referencing an identifier are only permitted when the identifier cannot be resolved.

Definition at line 44 of file NestedNameSpecifier.cpp.

References isDependent().

Referenced by clang::Sema::BuildExpressionFromDeclTemplateArgument(), BuildSingleCopyAssign(), clang::NestedNameSpecifierLocBuilder::Extend(), clang::ASTContext::getCanonicalNestedNameSpecifier(), getRequiredQualification(), clang::ASTImporter::Import(), and clang::ASTReader::ReadNestedNameSpecifier().

NestedNameSpecifier * NestedNameSpecifier::Create	(	const ASTContext &	Context,
		NestedNameSpecifier *	Prefix,
		NamespaceDecl *	NS
	)		`[static]`

Builds a nested name specifier that names a namespace.

Definition at line 57 of file NestedNameSpecifier.cpp.

References getAsIdentifier(), and getAsType().

NestedNameSpecifier * NestedNameSpecifier::Create	(	const ASTContext &	Context,
		NestedNameSpecifier *	Prefix,
		NamespaceAliasDecl *	Alias
	)		`[static]`

Builds a nested name specifier that names a namespace alias.

Definition at line 71 of file NestedNameSpecifier.cpp.

References getAsIdentifier(), and getAsType().

NestedNameSpecifier * NestedNameSpecifier::Create	(	const ASTContext &	Context,
		NestedNameSpecifier *	Prefix,
		bool	Template,
		const Type *	T
	)		`[static]`

Builds a nested name specifier that names a type.

Definition at line 86 of file NestedNameSpecifier.cpp.

NestedNameSpecifier * NestedNameSpecifier::Create	(	const ASTContext &	Context,
		IdentifierInfo *	II
	)		`[static]`

Builds a specifier that consists of just an identifier.

The nested-name-specifier is assumed to be dependent, but has no prefix because the prefix is implied by something outside of the nested name specifier, e.g., in "x->Base::f", the "x" has a dependent type.

Definition at line 98 of file NestedNameSpecifier.cpp.

void NestedNameSpecifier::dump ( const LangOptions & LO )

Dump the nested name specifier to standard output to aid in debugging.

Definition at line 285 of file NestedNameSpecifier.cpp.

References print().

IdentifierInfo* clang::NestedNameSpecifier::getAsIdentifier ( ) const [inline]

Retrieve the identifier stored in this nested name specifier.

Definition at line 159 of file NestedNameSpecifier.h.

Referenced by clang::ASTWriter::AddNestedNameSpecifier(), clang::ASTWriter::AddNestedNameSpecifierLoc(), Create(), clang::Sema::FindFirstQualifierInScope(), clang::ASTContext::getCanonicalNestedNameSpecifier(), GetFullTypeForDeclarator(), clang::ASTImporter::Import(), print(), and clang::TreeTransform< Derived >::TransformNestedNameSpecifierLoc().

NamespaceDecl * NestedNameSpecifier::getAsNamespace ( ) const

Retrieve the namespace stored in this nested name specifier.

Definition at line 138 of file NestedNameSpecifier.cpp.

Referenced by clang::ASTWriter::AddNestedNameSpecifier(), clang::ASTWriter::AddNestedNameSpecifierLoc(), clang::Sema::computeDeclContext(), clang::ASTContext::getCanonicalNestedNameSpecifier(), clang::ASTImporter::Import(), print(), and clang::TreeTransform< Derived >::TransformNestedNameSpecifierLoc().

NamespaceAliasDecl * NestedNameSpecifier::getAsNamespaceAlias ( ) const

Retrieve the namespace alias stored in this nested name specifier.

Definition at line 147 of file NestedNameSpecifier.cpp.

Referenced by clang::ASTWriter::AddNestedNameSpecifier(), clang::ASTWriter::AddNestedNameSpecifierLoc(), clang::Sema::computeDeclContext(), clang::ASTContext::getCanonicalNestedNameSpecifier(), clang::ASTImporter::Import(), print(), and clang::TreeTransform< Derived >::TransformNestedNameSpecifierLoc().

const Type* clang::NestedNameSpecifier::getAsType ( ) const [inline]

Retrieve the type stored in this nested name specifier.

Definition at line 175 of file NestedNameSpecifier.h.

Referenced by clang::ASTWriter::AddNestedNameSpecifier(), clang::CodeGen::CodeGenFunction::BuildAppleKextVirtualCall(), clang::Sema::CheckInheritedConstructorUsingDecl(), clang::Sema::computeDeclContext(), containsUnexpandedParameterPack(), Create(), clang::ASTContext::getCanonicalNestedNameSpecifier(), clang::Sema::getCurrentInstantiationOf(), GetFullTypeForDeclarator(), clang::NestedNameSpecifierLoc::getLocalSourceRange(), clang::UnresolvedMemberExpr::getNamingClass(), clang::NestedNameSpecifierLoc::getTypeLoc(), clang::Sema::HandleDeclarator(), clang::ASTImporter::Import(), isDependent(), isInstantiationDependent(), clang::Sema::isMicrosoftMissingTypename(), clang::NestedNameSpecifierLocBuilder::MakeTrivial(), MarkUsedTemplateParameters(), clang::Sema::MatchTemplateParametersToScopeSpecifier(), clang::Sema::PerformObjectMemberConversion(), print(), ScopeSpecifierHasTemplateId(), and clang::RecursiveASTVisitor< Derived >::TraverseNestedNameSpecifier().

NestedNameSpecifier::SpecifierKind NestedNameSpecifier::getKind ( ) const

Determine what kind of nested name specifier is stored.

Definition at line 114 of file NestedNameSpecifier.cpp.

References Global, Identifier, Namespace, NamespaceAlias, TypeSpec, and TypeSpecWithTemplate.

Referenced by clang::Sema::ActOnUsingDirective(), clang::ASTWriter::AddNestedNameSpecifier(), clang::ASTWriter::AddNestedNameSpecifierLoc(), clang::CodeGen::CodeGenFunction::BuildAppleKextVirtualCall(), clang::Sema::computeDeclContext(), containsUnexpandedParameterPack(), clang::Sema::FindFirstQualifierInScope(), clang::ASTContext::getCanonicalNestedNameSpecifier(), GetFullTypeForDeclarator(), clang::NestedNameSpecifierLoc::getLocalSourceRange(), clang::NestedNameSpecifierLoc::getTypeLoc(), clang::ASTImporter::Import(), isDependent(), isInstantiationDependent(), clang::NestedNameSpecifierLocBuilder::MakeTrivial(), print(), clang::TreeTransform< Derived >::TransformNestedNameSpecifierLoc(), clang::RecursiveASTVisitor< Derived >::TraverseNestedNameSpecifier(), and clang::RecursiveASTVisitor< Derived >::TraverseNestedNameSpecifierLoc().

NestedNameSpecifier* clang::NestedNameSpecifier::getPrefix ( ) const [inline]

Return the prefix of this nested name specifier.

The prefix contains all of the parts of the nested name specifier that preced this current specifier. For example, for a nested name specifier that represents "foo::bar::", the current specifier will contain "bar::" and the prefix will contain "foo::".

Definition at line 152 of file NestedNameSpecifier.h.

Referenced by clang::ASTWriter::AddNestedNameSpecifier(), containsUnexpandedParameterPack(), clang::Sema::FindFirstQualifierInScope(), clang::ASTContext::getCanonicalNestedNameSpecifier(), clang::Sema::getDestructorName(), GetFullTypeForDeclarator(), clang::NestedNameSpecifierLoc::getLocalSourceRange(), clang::NestedNameSpecifierLoc::getPrefix(), clang::NestedNameSpecifierLoc::getTypeLoc(), clang::ASTImporter::Import(), clang::NestedNameSpecifierLocBuilder::MakeTrivial(), MarkUsedTemplateParameters(), print(), ScopeSpecifierHasTemplateId(), and clang::RecursiveASTVisitor< Derived >::TraverseNestedNameSpecifier().