base rtti data structure

rtti_struct.h

#include <typeinfo>


typedef std::type_info	TypeDescriptor;


struct PMD
{
	ptrdiff_t	mdisp;		// vftable offset
	ptrdiff_t	pdisp;		// vbtable offset
	ptrdiff_t	vdisp;		// vftable offset(for virtual base class)
	
	void	Output()
	{
		printf("(%u, %u, %u)", mdisp, pdisp, vdisp);
	}
};





struct _s_RTTICompleteObjectLocator;
struct _s_RTTIClassHierarchyDescriptor;
struct _s_RTTIBaseClassDescriptor;


struct _s_RTTICompleteObjectLocator
{
	DWORD	signature;
	DWORD	offset;	// vftable offset to this
	DWORD	cdOffset;
	TypeDescriptor* pTypeDescriptor;
	_s_RTTIClassHierarchyDescriptor*	pClassHierarchyDescriptor;

	void	Output(size_t tabs = 0);
};


struct _s_RTTIClassHierarchyDescriptor
{
	DWORD	signature;
	DWORD	attributes;	// bit 0 multiple inheritance, bit 1 virtual inheritance
	size_t	numBaseClasses; // at least 1(all base classes, including itself)
	_s_RTTIBaseClassDescriptor** pBaseClassArray;

	void	Output(size_t tabs = 0);
};


struct _s_RTTIBaseClassDescriptor
{
	TypeDescriptor*	pTypeDescriptor;
	size_t	numBaseClasses;	// direct base classes
	PMD		pmd;	// len = 0xC
	DWORD	attributes;
	_s_RTTIClassHierarchyDescriptor* pClassHierarchyDescriptor;

	void	Output(size_t tabs = 0);
};


inline void OutputTab(size_t tabs = 0)
{
	for (size_t i = 0; i < tabs; ++i)
	{
		putchar('\t');
	}
}


inline void	_s_RTTICompleteObjectLocator::Output(size_t tabs)
{
	OutputTab(tabs);
	printf("CompleteObjectLocator: \n");
	OutputTab(tabs);
	printf("signature: %u\n", signature);
	OutputTab(tabs);
	printf("offset: %u\n", offset);
	OutputTab(tabs);
	printf("cdOffset: %u\n", cdOffset);
	OutputTab(tabs);
	printf("pTypeDescriptor: %s\n", pTypeDescriptor->name());
	OutputTab(tabs);
	printf("pClassHierarchyDescriptor: \n");
	pClassHierarchyDescriptor->Output(tabs+1);
	printf("\n\n");
}


inline void	_s_RTTIClassHierarchyDescriptor::Output(size_t tabs)
{
	OutputTab(tabs);
	printf("signature: %u\n", signature);
	OutputTab(tabs);
	printf("attributes: %u\n", attributes);
	for (size_t i = 0; i < numBaseClasses; ++i)
	{
		OutputTab(tabs);
		printf("base class%u: \n", i+1);
		pBaseClassArray[i]->Output(tabs+1);
	}
}


inline void	_s_RTTIBaseClassDescriptor::Output(size_t tabs)
{
	OutputTab(tabs);
	printf("pTypeDescriptor: %s\n", pTypeDescriptor->name());
	OutputTab(tabs);
	printf("numBaseClasses: %u\n", numBaseClasses);
	OutputTab(tabs);
	printf("pmd: ");
	pmd.Output();
	printf("\n");
	OutputTab(tabs);
	printf("attributes: %u\n", attributes);
}