clang::ExtQuals Class Reference

We can encode up to four bits in the low bits of a type pointer, but there are many more type qualifiers that we want to be able to apply to an arbitrary type. More...

#include "clang/AST/TypeBase.h"

Inheritance diagram for clang::ExtQuals:

Public Member Functions
	ExtQuals (const Type *baseType, QualType canon, Qualifiers quals)
Qualifiers	getQualifiers () const
bool	hasObjCGCAttr () const
Qualifiers::GC	getObjCGCAttr () const
bool	hasObjCLifetime () const
Qualifiers::ObjCLifetime	getObjCLifetime () const
bool	hasAddressSpace () const
LangAS	getAddressSpace () const
const Type *	getBaseType () const
void	Profile (llvm::FoldingSetNodeID &ID) const

Static Public Member Functions
static void	Profile (llvm::FoldingSetNodeID &ID, const Type *BaseType, Qualifiers Quals)

Detailed Description

We can encode up to four bits in the low bits of a type pointer, but there are many more type qualifiers that we want to be able to apply to an arbitrary type.

Therefore we have this struct, intended to be heap-allocated and used by QualType to store qualifiers.

The current design tags the 'const', 'restrict', and 'volatile' qualifiers in three low bits on the QualType pointer; a fourth bit records whether the pointer is an ExtQuals node. The extended qualifiers (address spaces, Objective-C GC attributes) are much more rare.

Definition at line 1722 of file TypeBase.h.

Constructor & Destructor Documentation

ExtQuals()

clang::ExtQuals::ExtQuals ( const Type * baseType, QualType canon, Qualifiers quals )

inline

Definition at line 1744 of file TypeBase.h.

References clang::ExtQualsTypeCommonBase::QualType, and clang::ExtQualsTypeCommonBase::Type.

Member Function Documentation

getAddressSpace()

LangAS clang::ExtQuals::getAddressSpace ( ) const

inline

Definition at line 1765 of file TypeBase.h.

getBaseType()

const Type * clang::ExtQuals::getBaseType ( ) const

inline

Definition at line 1767 of file TypeBase.h.

References clang::ExtQualsTypeCommonBase::Type.

Referenced by Profile(), clang::QualType::split(), and clang::QualifierCollector::strip().

getObjCGCAttr()

Qualifiers::GC clang::ExtQuals::getObjCGCAttr ( ) const

inline

Definition at line 1757 of file TypeBase.h.

getObjCLifetime()

Qualifiers::ObjCLifetime clang::ExtQuals::getObjCLifetime ( ) const

inline

Definition at line 1760 of file TypeBase.h.

getQualifiers()

Qualifiers clang::ExtQuals::getQualifiers ( ) const

inline

Definition at line 1754 of file TypeBase.h.

Referenced by clang::QualType::split(), and clang::QualifierCollector::strip().

hasAddressSpace()

bool clang::ExtQuals::hasAddressSpace ( ) const

inline

Definition at line 1764 of file TypeBase.h.

hasObjCGCAttr()

bool clang::ExtQuals::hasObjCGCAttr ( ) const

inline

Definition at line 1756 of file TypeBase.h.

hasObjCLifetime()

bool clang::ExtQuals::hasObjCLifetime ( ) const

inline

Definition at line 1759 of file TypeBase.h.

Profile() [1/2]

void clang::ExtQuals::Profile ( llvm::FoldingSetNodeID & ID ) const

inline

Definition at line 1770 of file TypeBase.h.

References getBaseType(), and Profile().

Referenced by Profile().

Profile() [2/2]

void clang::ExtQuals::Profile ( llvm::FoldingSetNodeID & ID, const Type * BaseType, Qualifiers Quals )

inlinestatic

Definition at line 1774 of file TypeBase.h.

References clang::ExtQualsTypeCommonBase::Type.

---

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

• include/clang/AST/TypeBase.h