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/Type.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 1490 of file Type.h.

Constructor & Destructor Documentation

ExtQuals()

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

inline

Definition at line 1512 of file Type.h.

Member Function Documentation

getAddressSpace()

LangAS clang::ExtQuals::getAddressSpace ( ) const

inline

Definition at line 1533 of file Type.h.

getBaseType()

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

inline

Definition at line 1535 of file Type.h.

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

getObjCGCAttr()

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

inline

Definition at line 1525 of file Type.h.

getObjCLifetime()

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

inline

Definition at line 1528 of file Type.h.

getQualifiers()

Qualifiers clang::ExtQuals::getQualifiers ( ) const

inline

Definition at line 1522 of file Type.h.

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

hasAddressSpace()

bool clang::ExtQuals::hasAddressSpace ( ) const

inline

Definition at line 1532 of file Type.h.

hasObjCGCAttr()

bool clang::ExtQuals::hasObjCGCAttr ( ) const

inline

Definition at line 1524 of file Type.h.

hasObjCLifetime()

bool clang::ExtQuals::hasObjCLifetime ( ) const

inline

Definition at line 1527 of file Type.h.

Profile() [1/2]

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

inline

Definition at line 1538 of file Type.h.

References ID.

Profile() [2/2]

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

inlinestatic

Definition at line 1542 of file Type.h.

References clang::Qualifiers::hasFastQualifiers(), ID, and clang::Qualifiers::Profile().

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

• include/clang/AST/Type.h