class VTTBuilder

Declaration

class VTTBuilder { /* full declaration omitted */ };

Description

Class for building VTT layout information.

Declared at: clang/include/clang/AST/VTTBuilder.h:71

Member Variables

private clang::ASTContext& Ctx

private const clang::CXXRecordDecl* MostDerivedClass

The most derived class for which we're building this vtable.

private clang::VTTBuilder::VTTVTablesVectorTy VTTVTables

The VTT vtables.

private clang::VTTBuilder::VTTComponentsVectorTy VTTComponents

The VTT components.

private const clang::ASTRecordLayout& MostDerivedClassLayout

The AST record layout of the most derived class.

private llvm::DenseMap<BaseSubobject, uint64_t> SubVTTIndicies

The sub-VTT indices for the bases of the most derived class.

private llvm::DenseMap<BaseSubobject, uint64_t> SecondaryVirtualPointerIndices

The secondary virtual pointer indices of all subobjects of the most derived class.

private bool GenerateDefinition

Whether the VTT builder should generate LLVM IR for the VTT.

Method Overview

• private void AddVTablePointer(clang::BaseSubobject Base, uint64_t VTableIndex, const clang::CXXRecordDecl * VTableClass)
• private void LayoutSecondaryVTTs(clang::BaseSubobject Base)
• private void LayoutSecondaryVirtualPointers(clang::BaseSubobject Base, bool BaseIsMorallyVirtual, uint64_t VTableIndex, const clang::CXXRecordDecl * VTableClass, clang::VTTBuilder::VisitedVirtualBasesSetTy & VBases)
• private void LayoutSecondaryVirtualPointers(clang::BaseSubobject Base, uint64_t VTableIndex)
• private void LayoutVTT(clang::BaseSubobject Base, bool BaseIsVirtual)
• private void LayoutVirtualVTTs(const clang::CXXRecordDecl * RD, clang::VTTBuilder::VisitedVirtualBasesSetTy & VBases)
• public VTTBuilder(clang::ASTContext & Ctx, const clang::CXXRecordDecl * MostDerivedClass, bool GenerateDefinition)
• public const llvm::DenseMap<BaseSubobject, uint64_t> & getSecondaryVirtualPointerIndices() const
• public const llvm::DenseMap<BaseSubobject, uint64_t> & getSubVTTIndicies() const
• public const clang::VTTBuilder::VTTComponentsVectorTy & getVTTComponents() const
• public const clang::VTTBuilder::VTTVTablesVectorTy & getVTTVTables() const

Methods

¶void AddVTablePointer(
    clang::BaseSubobject Base,
    uint64_t VTableIndex,
    const clang::CXXRecordDecl* VTableClass)

Description

Add a vtable pointer to the VTT currently being built.

Declared at: clang/include/clang/AST/VTTBuilder.h:105

Parameters

clang::BaseSubobject Base

uint64_t VTableIndex

const clang::CXXRecordDecl* VTableClass

¶void LayoutSecondaryVTTs(
    clang::BaseSubobject Base)

Description

Lay out the secondary VTTs of the given base subobject.

Declared at: clang/include/clang/AST/VTTBuilder.h:109

Parameters

clang::BaseSubobject Base

¶void LayoutSecondaryVirtualPointers(
    clang::BaseSubobject Base,
    bool BaseIsMorallyVirtual,
    uint64_t VTableIndex,
    const clang::CXXRecordDecl* VTableClass,
    clang::VTTBuilder::VisitedVirtualBasesSetTy&
        VBases)

Description

Lay out the secondary virtual pointers for the given base subobject.

Declared at: clang/include/clang/AST/VTTBuilder.h:116

Parameters

clang::BaseSubobject Base

bool BaseIsMorallyVirtual

whether the base subobject is a virtual base or a direct or indirect base of a virtual base.

uint64_t VTableIndex

const clang::CXXRecordDecl* VTableClass

clang::VTTBuilder::VisitedVirtualBasesSetTy& VBases

¶void LayoutSecondaryVirtualPointers(
    clang::BaseSubobject Base,
    uint64_t VTableIndex)

Description

Lay out the secondary virtual pointers for the given base subobject.

Declared at: clang/include/clang/AST/VTTBuilder.h:124

Parameters

clang::BaseSubobject Base

uint64_t VTableIndex

¶void LayoutVTT(clang::BaseSubobject Base,
               bool BaseIsVirtual)

Description

Lay out the VTT for the given subobject, including any secondary VTTs, secondary virtual pointers and virtual VTTs.

Declared at: clang/include/clang/AST/VTTBuilder.h:134

Parameters

clang::BaseSubobject Base

bool BaseIsVirtual

¶void LayoutVirtualVTTs(
    const clang::CXXRecordDecl* RD,
    clang::VTTBuilder::VisitedVirtualBasesSetTy&
        VBases)

Description

Lay out the VTTs for the virtual base classes of the given record declaration.

Declared at: clang/include/clang/AST/VTTBuilder.h:129

Parameters

const clang::CXXRecordDecl* RD

clang::VTTBuilder::VisitedVirtualBasesSetTy& VBases

¶VTTBuilder(
    clang::ASTContext& Ctx,
    const clang::CXXRecordDecl* MostDerivedClass,
    bool GenerateDefinition)

Declared at: clang/include/clang/AST/VTTBuilder.h:137

Parameters

clang::ASTContext& Ctx

const clang::CXXRecordDecl* MostDerivedClass

bool GenerateDefinition

¶const llvm::DenseMap<BaseSubobject, uint64_t>&
getSecondaryVirtualPointerIndices() const

Description

Returns a reference to the secondary virtual pointer indices.

Declared at: clang/include/clang/AST/VTTBuilder.h:157

¶const llvm::DenseMap<BaseSubobject, uint64_t>&
getSubVTTIndicies() const

Description

Returns a reference to the sub-VTT indices.

Declared at: clang/include/clang/AST/VTTBuilder.h:151

¶const clang::VTTBuilder::VTTComponentsVectorTy&
getVTTComponents() const

Declared at: clang/include/clang/AST/VTTBuilder.h:141

¶const clang::VTTBuilder::VTTVTablesVectorTy&
getVTTVTables() const

Declared at: clang/include/clang/AST/VTTBuilder.h:146