clang  11.0.0git
Public Types | Public Member Functions | Static Public Member Functions | List of all members
clang::ItaniumVTableContext Class Reference

#include "clang/AST/VTableBuilder.h"

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Public Types

enum  VTableComponentLayout { Pointer, Relative }
 
- Public Types inherited from clang::VTableContextBase
typedef SmallVector< ThunkInfo, 1 > ThunkInfoVectorTy
 

Public Member Functions

 ItaniumVTableContext (ASTContext &Context, VTableComponentLayout ComponentLayout=Pointer)
 
 ~ItaniumVTableContext () override
 
const VTableLayoutgetVTableLayout (const CXXRecordDecl *RD)
 
std::unique_ptr< VTableLayoutcreateConstructionVTableLayout (const CXXRecordDecl *MostDerivedClass, CharUnits MostDerivedClassOffset, bool MostDerivedClassIsVirtual, const CXXRecordDecl *LayoutClass)
 
uint64_t getMethodVTableIndex (GlobalDecl GD)
 Locate a virtual function in the vtable. More...
 
CharUnits getVirtualBaseOffsetOffset (const CXXRecordDecl *RD, const CXXRecordDecl *VBase)
 Return the offset in chars (relative to the vtable address point) where the offset of the virtual base that contains the given base is stored, otherwise, if no virtual base contains the given class, return 0. More...
 
VTableComponentLayout getVTableComponentLayout () const
 
bool isPointerLayout () const
 
bool isRelativeLayout () const
 
- Public Member Functions inherited from clang::VTableContextBase
bool isMicrosoft () const
 
virtual ~VTableContextBase ()
 
virtual const ThunkInfoVectorTygetThunkInfo (GlobalDecl GD)
 

Static Public Member Functions

static bool classof (const VTableContextBase *VT)
 
- Static Public Member Functions inherited from clang::VTableContextBase
static bool hasVtableSlot (const CXXMethodDecl *MD)
 Determine whether this function should be assigned a vtable slot. More...
 

Additional Inherited Members

- Public Attributes inherited from clang::VTableContextBase
bool IsMicrosoftABI
 
- Protected Types inherited from clang::VTableContextBase
typedef llvm::DenseMap< const CXXMethodDecl *, ThunkInfoVectorTyThunksMapTy
 
- Protected Member Functions inherited from clang::VTableContextBase
 VTableContextBase (bool MS)
 
- Protected Attributes inherited from clang::VTableContextBase
ThunksMapTy Thunks
 Contains all thunks that a given method decl will need. More...
 

Detailed Description

Definition at line 362 of file VTableBuilder.h.

Member Enumeration Documentation

◆ VTableComponentLayout

Enumerator
Pointer 

Components in the vtable are pointers to other structs/functions.

Relative 

Components in the vtable are relative offsets between the vtable and the other structs/functions.

Definition at line 389 of file VTableBuilder.h.

Constructor & Destructor Documentation

◆ ItaniumVTableContext()

ItaniumVTableContext::ItaniumVTableContext ( ASTContext Context,
VTableComponentLayout  ComponentLayout = Pointer 
)

Definition at line 2264 of file VTableBuilder.cpp.

◆ ~ItaniumVTableContext()

ItaniumVTableContext::~ItaniumVTableContext ( )
override

Definition at line 2268 of file VTableBuilder.cpp.

Member Function Documentation

◆ classof()

static bool clang::ItaniumVTableContext::classof ( const VTableContextBase VT)
inlinestatic

Definition at line 427 of file VTableBuilder.h.

References clang::VTableContextBase::isMicrosoft().

◆ createConstructionVTableLayout()

std::unique_ptr< VTableLayout > ItaniumVTableContext::createConstructionVTableLayout ( const CXXRecordDecl MostDerivedClass,
CharUnits  MostDerivedClassOffset,
bool  MostDerivedClassIsVirtual,
const CXXRecordDecl LayoutClass 
)

Definition at line 2362 of file VTableBuilder.cpp.

◆ getMethodVTableIndex()

uint64_t ItaniumVTableContext::getMethodVTableIndex ( GlobalDecl  GD)

Locate a virtual function in the vtable.

Return the index (relative to the vtable address point) where the function pointer for the given virtual function is stored.

Definition at line 2270 of file VTableBuilder.cpp.

References clang::GlobalDecl::getCanonicalDecl(), and clang::GlobalDecl::getDecl().

◆ getVirtualBaseOffsetOffset()

CharUnits ItaniumVTableContext::getVirtualBaseOffsetOffset ( const CXXRecordDecl RD,
const CXXRecordDecl VBase 
)

Return the offset in chars (relative to the vtable address point) where the offset of the virtual base that contains the given base is stored, otherwise, if no virtual base contains the given class, return 0.

Base must be a virtual base class or an unambiguous base.

Definition at line 2286 of file VTableBuilder.cpp.

Referenced by ComputeVMIClassTypeInfoFlags().

◆ getVTableComponentLayout()

VTableComponentLayout clang::ItaniumVTableContext::getVTableComponentLayout ( ) const
inline

Definition at line 431 of file VTableBuilder.h.

◆ getVTableLayout()

const VTableLayout& clang::ItaniumVTableContext::getVTableLayout ( const CXXRecordDecl RD)
inline

Definition at line 402 of file VTableBuilder.h.

◆ isPointerLayout()

bool clang::ItaniumVTableContext::isPointerLayout ( ) const
inline

Definition at line 435 of file VTableBuilder.h.

References Pointer.

◆ isRelativeLayout()

bool clang::ItaniumVTableContext::isRelativeLayout ( ) const
inline

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