clang::CXXBasePaths Class Reference

BasePaths - Represents the set of paths from a derived class to one of its (direct or indirect) bases. More...

#include "clang/AST/CXXInheritance.h"

Public Types
using	paths_iterator = std::list< CXXBasePath >::iterator
using	const_paths_iterator = std::list< CXXBasePath >::const_iterator
using	decl_iterator = NamedDecl **
using	decl_range = llvm::iterator_range< decl_iterator >

Public Member Functions
	CXXBasePaths (bool FindAmbiguities=true, bool RecordPaths=true, bool DetectVirtual=true)
	BasePaths - Construct a new BasePaths structure to record the paths for a derived-to-base search. More...
paths_iterator	begin ()
paths_iterator	end ()
const_paths_iterator	begin () const
const_paths_iterator	end () const
CXXBasePath &	front ()
const CXXBasePath &	front () const
decl_range	found_decls ()
bool	isAmbiguous (CanQualType BaseType)
	Determine whether the path from the most-derived type to the given base type is ambiguous (i.e., it refers to multiple subobjects of the same base type). More...
bool	isFindingAmbiguities () const
	Whether we are finding multiple paths to detect ambiguities. More...
bool	isRecordingPaths () const
	Whether we are recording paths. More...
void	setRecordingPaths (bool RP)
	Specify whether we should be recording paths or not. More...
bool	isDetectingVirtual () const
	Whether we are detecting virtual bases. More...
const RecordType *	getDetectedVirtual () const
	The virtual base discovered on the path (if we are merely detecting virtuals). More...
CXXRecordDecl *	getOrigin () const
	Retrieve the type from which this base-paths search began. More...
void	setOrigin (CXXRecordDecl *Rec)
void	clear ()
	Clear the base-paths results. More...
void	swap (CXXBasePaths &Other)
	Swap this data structure's contents with another CXXBasePaths object. More...

Friends
class	CXXRecordDecl

Detailed Description

BasePaths - Represents the set of paths from a derived class to one of its (direct or indirect) bases.

For example, given the following class hierarchy:

class A { };
class B : public A { };
class C : public A { };
class D : public B, public C{ };

There are two potential BasePaths to represent paths from D to a base subobject of type A. One path is (D,0) -> (B,0) -> (A,0) and another is (D,0)->(C,0)->(A,1). These two paths actually refer to two different base class subobjects of the same type, so the BasePaths object refers to an ambiguous path. On the other hand, consider the following class hierarchy:

class A { };
class B : public virtual A { };
class C : public virtual A { };
class D : public B, public C{ };

Here, there are two potential BasePaths again, (D, 0) -> (B, 0) -> (A,v) and (D, 0) -> (C, 0) -> (A, v), but since both of them refer to the same base class subobject of type A (the virtual one), there is no ambiguity.

Definition at line 119 of file CXXInheritance.h.

Member Typedef Documentation

const_paths_iterator

using clang::CXXBasePaths::const_paths_iterator = std::list<CXXBasePath>::const_iterator

Definition at line 182 of file CXXInheritance.h.

decl_iterator

using clang::CXXBasePaths::decl_iterator = NamedDecl **

Definition at line 183 of file CXXInheritance.h.

decl_range

using clang::CXXBasePaths::decl_range = llvm::iterator_range<decl_iterator>

Definition at line 200 of file CXXInheritance.h.

paths_iterator

using clang::CXXBasePaths::paths_iterator = std::list<CXXBasePath>::iterator

Definition at line 181 of file CXXInheritance.h.

Constructor & Destructor Documentation

CXXBasePaths()

clang::CXXBasePaths::CXXBasePaths ( bool  FindAmbiguities = true, bool  RecordPaths = true, bool  DetectVirtual = true  )

inlineexplicit

BasePaths - Construct a new BasePaths structure to record the paths for a derived-to-base search.

Definition at line 187 of file CXXInheritance.h.

Member Function Documentation

begin() [1/2]

paths_iterator clang::CXXBasePaths::begin ( )

inline

Definition at line 192 of file CXXInheritance.h.

Referenced by DiagnoseReinterpretUpDownCast(), and clang::OverridingMethods::replaceAll().

begin() [2/2]

const_paths_iterator clang::CXXBasePaths::begin ( ) const

inline

Definition at line 194 of file CXXInheritance.h.

clear()

void CXXBasePaths::clear

(

)

Clear the base-paths results.

clear - Clear out all prior path information.

Definition at line 71 of file CXXInheritance.cpp.

References clang::CXXBasePath::clear().

end() [1/2]

paths_iterator clang::CXXBasePaths::end ( )

inline

Definition at line 193 of file CXXInheritance.h.

Referenced by DiagnoseReinterpretUpDownCast(), and clang::OverridingMethods::replaceAll().

end() [2/2]

const_paths_iterator clang::CXXBasePaths::end ( ) const

inline

Definition at line 195 of file CXXInheritance.h.

found_decls()

CXXBasePaths::decl_range CXXBasePaths::found_decls

(

)

Definition at line 52 of file CXXInheritance.cpp.

front() [1/2]

CXXBasePath& clang::CXXBasePaths::front ( )

inline

Definition at line 197 of file CXXInheritance.h.

front() [2/2]

const CXXBasePath& clang::CXXBasePaths::front ( ) const

inline

Definition at line 198 of file CXXInheritance.h.

getDetectedVirtual()

const RecordType* clang::CXXBasePaths::getDetectedVirtual ( ) const

inline

The virtual base discovered on the path (if we are merely detecting virtuals).

Definition at line 223 of file CXXInheritance.h.

getOrigin()

CXXRecordDecl* clang::CXXBasePaths::getOrigin ( ) const

inline

Retrieve the type from which this base-paths search began.

Definition at line 229 of file CXXInheritance.h.

isAmbiguous()

bool CXXBasePaths::isAmbiguous

(

CanQualType

BaseType

)

Determine whether the path from the most-derived type to the given base type is ambiguous (i.e., it refers to multiple subobjects of the same base type).

isAmbiguous - Determines whether the set of paths provided is ambiguous, i.e., there are two or more paths that refer to different base class subobjects of the same type.

BaseType must be an unqualified, canonical class type.

Definition at line 64 of file CXXInheritance.cpp.

References clang::CanQual< T >::getUnqualifiedType().

isDetectingVirtual()

bool clang::CXXBasePaths::isDetectingVirtual ( ) const

inline

Whether we are detecting virtual bases.

Definition at line 219 of file CXXInheritance.h.

isFindingAmbiguities()

bool clang::CXXBasePaths::isFindingAmbiguities ( ) const

inline

Whether we are finding multiple paths to detect ambiguities.

Definition at line 210 of file CXXInheritance.h.

Referenced by clang::CXXRecordDecl::lookupInBases().

isRecordingPaths()

bool clang::CXXBasePaths::isRecordingPaths ( ) const

inline

Whether we are recording paths.

Definition at line 213 of file CXXInheritance.h.

Referenced by clang::CXXRecordDecl::lookupInBases().

setOrigin()

void clang::CXXBasePaths::setOrigin ( CXXRecordDecl *  Rec )

inline

Definition at line 230 of file CXXInheritance.h.

References clang::CodeGen::clear().

Referenced by clang::CXXRecordDecl::isDerivedFrom(), and clang::CXXRecordDecl::isVirtuallyDerivedFrom().

setRecordingPaths()

void clang::CXXBasePaths::setRecordingPaths ( bool  RP )

inline

Specify whether we should be recording paths or not.

Definition at line 216 of file CXXInheritance.h.

swap()

void CXXBasePaths::swap

(

CXXBasePaths &

Other

)

Swap this data structure's contents with another CXXBasePaths object.

Swaps the contents of this CXXBasePaths structure with the contents of Other.

Definition at line 81 of file CXXInheritance.cpp.

Referenced by clang::LookupResult::setAmbiguousBaseSubobjects(), and clang::LookupResult::setAmbiguousBaseSubobjectTypes().

Friends And Related Function Documentation

CXXRecordDecl

friend class CXXRecordDecl

friend

Definition at line 120 of file CXXInheritance.h.

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

• include/clang/AST/CXXInheritance.h
• lib/AST/CXXInheritance.cpp