clang::LazyOffsetPtr< T, OffsT, Get > Struct Template Reference

A lazy pointer to an AST node (of base type T) that resides within an external AST source. More...

#include "clang/AST/ExternalASTSource.h"

Inheritance diagram for clang::LazyOffsetPtr< T, OffsT, Get >:

Public Member Functions
	LazyOffsetPtr ()=default
	LazyOffsetPtr (T *Ptr)
	LazyOffsetPtr (uint64_t Offset)
LazyOffsetPtr &	operator= (T *Ptr)
LazyOffsetPtr &	operator= (uint64_t Offset)
	operator bool () const
	Whether this pointer is non-NULL.
bool	isValid () const
	Whether this pointer is non-NULL.
bool	isOffset () const
	Whether this pointer is currently stored as an offset.
T *	get (ExternalASTSource *Source) const
	Retrieve the pointer to the AST node that this lazy pointer points to.
T **	getAddressOfPointer (ExternalASTSource *Source) const
	Retrieve the address of the AST node pointer.

Public Attributes
uint64_t	Ptr = 0
	Either a pointer to an AST node or the offset within the external AST source where the AST node can be found.

Detailed Description

template<typename T, typename OffsT, T *(ExternalASTSource::*)(OffsT Offset) Get>
struct clang::LazyOffsetPtr< T, OffsT, Get >

A lazy pointer to an AST node (of base type T) that resides within an external AST source.

The AST node is identified within the external AST source by a 63-bit offset, and can be retrieved via an operation on the external AST source itself.

Definition at line 323 of file ExternalASTSource.h.

Constructor & Destructor Documentation

LazyOffsetPtr() [1/3]

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

clang::LazyOffsetPtr< T, OffsT, Get >::LazyOffsetPtr ( )

default

LazyOffsetPtr() [2/3]

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

clang::LazyOffsetPtr< T, OffsT, Get >::LazyOffsetPtr ( T *  Ptr )

inlineexplicit

Definition at line 333 of file ExternalASTSource.h.

LazyOffsetPtr() [3/3]

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

clang::LazyOffsetPtr< T, OffsT, Get >::LazyOffsetPtr ( uint64_t  Offset )

inlineexplicit

Definition at line 335 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::Ptr.

Member Function Documentation

get()

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

T * clang::LazyOffsetPtr< T, OffsT, Get >::get ( ExternalASTSource *  Source ) const

inline

Retrieve the pointer to the AST node that this lazy pointer points to.

Parameters

Source

the external AST source.

Returns

a pointer to the AST node.

Definition at line 374 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::isOffset(), clang::LazyOffsetPtr< T, OffsT, Get >::Ptr, and clang::T.

Referenced by clang::LazyOffsetPtr< T, OffsT, Get >::getAddressOfPointer(), clang::ObjCMethodDecl::getBody(), clang::ASTContext::getCurrentKeyFunction(), clang::FieldDecl::getInClassInitializer(), clang::OMPDeclareReductionDecl::getPrevDeclInScope(), clang::OMPDeclareMapperDecl::getPrevDeclInScope(), clang::Sema::getStdAlignValT(), clang::Sema::getStdBadAlloc(), clang::Sema::getStdNamespace(), clang::CXXConstructorDecl::init_begin(), clang::ObjCImplementationDecl::init_begin(), and clang::ASTContext::setNonKeyFunction().

getAddressOfPointer()

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

T ** clang::LazyOffsetPtr< T, OffsT, Get >::getAddressOfPointer ( ExternalASTSource *  Source ) const

inline

Retrieve the address of the AST node pointer.

Deserializes the pointee if necessary.

Definition at line 385 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::get(), clang::LazyOffsetPtr< T, OffsT, Get >::Ptr, and clang::T.

isOffset()

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

bool clang::LazyOffsetPtr< T, OffsT, Get >::isOffset ( ) const

inline

Whether this pointer is currently stored as an offset.

Definition at line 367 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::Ptr.

Referenced by clang::LazyOffsetPtr< T, OffsT, Get >::get(), clang::ASTContext::getCurrentKeyFunction(), and clang::FieldDecl::getInClassInitializer().

isValid()

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

bool clang::LazyOffsetPtr< T, OffsT, Get >::isValid ( ) const

inline

Whether this pointer is non-NULL.

This operation does not require the AST node to be deserialized.

Definition at line 364 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::Ptr.

Referenced by clang::ASTContext::getCurrentKeyFunction(), and clang::ObjCMethodDecl::hasBody().

operator bool()

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

clang::LazyOffsetPtr< T, OffsT, Get >::operator bool ( ) const

inlineexplicit

Whether this pointer is non-NULL.

This operation does not require the AST node to be deserialized.

Definition at line 359 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::Ptr.

operator=() [1/2]

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

LazyOffsetPtr & clang::LazyOffsetPtr< T, OffsT, Get >::operator= ( T *  Ptr )

inline

Definition at line 341 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::Ptr.

operator=() [2/2]

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

LazyOffsetPtr & clang::LazyOffsetPtr< T, OffsT, Get >::operator= ( uint64_t  Offset )

inline

Definition at line 346 of file ExternalASTSource.h.

References clang::LazyOffsetPtr< T, OffsT, Get >::Ptr.

Member Data Documentation

Ptr

template<typename T , typename OffsT , T *(ExternalASTSource::*)(OffsT Offset) Get>

uint64_t clang::LazyOffsetPtr< T, OffsT, Get >::Ptr = 0

mutable

Either a pointer to an AST node or the offset within the external AST source where the AST node can be found.

If the low bit is clear, a pointer to the AST node. If the low bit is set, the upper 63 bits are the offset.

Definition at line 329 of file ExternalASTSource.h.

Referenced by clang::LazyOffsetPtr< T, OffsT, Get >::get(), clang::LazyOffsetPtr< T, OffsT, Get >::getAddressOfPointer(), clang::LazyOffsetPtr< T, OffsT, Get >::isOffset(), clang::LazyOffsetPtr< T, OffsT, Get >::isValid(), clang::LazyOffsetPtr< T, OffsT, Get >::LazyOffsetPtr(), clang::LazyOffsetPtr< T, OffsT, Get >::operator bool(), and clang::LazyOffsetPtr< T, OffsT, Get >::operator=().

---

The documentation for this struct was generated from the following file:

• include/clang/AST/ExternalASTSource.h