class UsingType

Declaration

class UsingType : public Type, public Node { /* full declaration omitted */ };

Description

The base class of the type hierarchy. A central concept with types is that each type always has a canonical type. A canonical type is the type with any typedef names stripped out of it or the types it references. For example, consider: typedef int foo; typedef foo* bar; 'int *' 'foo *' 'bar' There will be a Type object created for 'int'. Since int is canonical, its CanonicalType pointer points to itself. There is also a Type for 'foo' (a TypedefType). Its CanonicalType pointer points to the 'int' Type. Next there is a PointerType that represents 'int*', which, like 'int', is canonical. Finally, there is a PointerType type for 'foo*' whose canonical type is 'int*', and there is a TypedefType for 'bar', whose canonical type is also 'int*'. Non-canonical types are useful for emitting diagnostics, without losing information about typedefs being used. Canonical types are useful for type comparisons (they allow by-pointer equality tests) and useful for reasoning about whether something has a particular form (e.g. is a function type), because they implicitly, recursively, strip all typedefs out of a type. Types, once created, are immutable.

Declared at: clang/include/clang/AST/Type.h:4443

Inherits from: Type, FoldingSetBase::Node

Member Variables

private clang::UsingShadowDecl* Found

Inherited from Type:

protected

Method Overview

  • public void Profile(llvm::FoldingSetNodeID & ID)
  • public static void Profile(llvm::FoldingSetNodeID & ID, const clang::UsingShadowDecl * Found)
  • private UsingType(const clang::UsingShadowDecl * Found, clang::QualType Underlying, clang::QualType Canon)
  • public static bool classof(const clang::Type * T)
  • public clang::QualType desugar() const
  • public clang::UsingShadowDecl * getFoundDecl() const
  • public clang::QualType getUnderlyingType() const
  • public bool isSugared() const

Inherited from FoldingSetBase::Node:

Inherited from Type:

Inherited from ExtQualsTypeCommonBase:

    Methods

    void Profile(llvm::FoldingSetNodeID& ID)

    Declared at: clang/include/clang/AST/Type.h:4456

    Parameters

    llvm::FoldingSetNodeID& ID

    static void Profile(
    llvm::FoldingSetNodeID& ID,
    const clang::UsingShadowDecl* Found)

    Declared at: clang/include/clang/AST/Type.h:4457

    Parameters

    llvm::FoldingSetNodeID& ID
    const clang::UsingShadowDecl* Found

    UsingType(const clang::UsingShadowDecl* Found,
          clang::QualType Underlying,
          clang::QualType Canon)

    Declared at: clang/include/clang/AST/Type.h:4447

    Parameters

    const clang::UsingShadowDecl* Found
    clang::QualType Underlying
    clang::QualType Canon

    static bool classof(const clang::Type* T)

    Declared at: clang/include/clang/AST/Type.h:4461

    Parameters

    const clang::Type* T

    clang::QualType desugar() const

    Declared at: clang/include/clang/AST/Type.h:4454

    clang::UsingShadowDecl* getFoundDecl() const

    Declared at: clang/include/clang/AST/Type.h:4450

    clang::QualType getUnderlyingType() const

    Declared at: clang/include/clang/AST/Type.h:4451

    bool isSugared() const

    Declared at: clang/include/clang/AST/Type.h:4453