xref: /AOO41X/main/bridges/source/cpp_uno/gcc3_linux_ia64/cpp2uno.cxx (revision 61dff127b6698e0bae836c8aedd6ec62111483d1)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"

#include <com/sun/star/uno/genfunc.hxx>
#include <uno/data.h>
#include <typelib/typedescription.hxx>

#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
#include "bridges/cpp_uno/shared/types.hxx"
#include "bridges/cpp_uno/shared/vtablefactory.hxx"

#include "share.hxx"
#include <stdio.h>

extern "C" { extern void (*privateSnippetExecutor)(); }

using namespace ::com::sun::star::uno;

namespace
{
//==================================================================================================
static typelib_TypeClass cpp2uno_call(
	bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
	const typelib_TypeDescription * pMemberTypeDescr,
	typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
	sal_Int32 nParams, typelib_MethodParameter * pParams, long r8,
        void ** gpreg, void ** fpreg, void ** ovrflw,
	sal_Int64 * pRegisterReturn /* space for register return */ )
{
#ifdef CMC_DEBUG
    fprintf(stderr, "as far as cpp2uno_call\n");
#endif

    int ng = 0; //number of gpr registers used
    int nf = 0; //number of fpr regsiters used

    // gpreg:  [ret *], this, [gpr params]
    // fpreg:  [fpr params]
    // ovrflw: [gpr or fpr params (properly aligned)]

	// return
	typelib_TypeDescription * pReturnTypeDescr = 0;
	if (pReturnTypeRef)
		TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );

	void * pUnoReturn = 0;
	void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need

	if (pReturnTypeDescr)
	{
		if ( ia64::return_in_hidden_param( pReturnTypeRef ) ) // complex return via ptr passed as hidden parameter reg (pCppReturn)
		{
			pCppReturn = *(void **)gpreg;
			gpreg++;
			ng++;

			pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
						  ? alloca( pReturnTypeDescr->nSize )
						  : pCppReturn); // direct way
		}
		else if ( ia64::return_via_r8_buffer( pReturnTypeRef ) ) // complex return via ptr passed in r8
		{
			pCppReturn = (void *)r8;

			pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
						  ? alloca( pReturnTypeDescr->nSize )
						  : pCppReturn); // direct way
		}

		else
			pUnoReturn = pRegisterReturn; // direct way for simple types
	}
	// pop this
    gpreg++;
    ng++;

	// stack space
	OSL_ENSURE( sizeof(void *) == sizeof(sal_Int64), "### unexpected size!" );
	// parameters
	void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
	void ** pCppArgs = pUnoArgs + nParams;
	// indizes of values this have to be converted (interface conversion cpp<=>uno)
	sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
	// type descriptions for reconversions
	typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));

	sal_Int32 nTempIndizes = 0;
	bool bOverFlowUsed = false;
	for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
	{
		const typelib_MethodParameter & rParam = pParams[nPos];
		typelib_TypeDescription * pParamTypeDescr = 0;
		TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );

#ifdef CMC_DEBUG
		fprintf(stderr, "arg %d of %d\n", nPos, nParams);
#endif

		//I think it is impossible to get UNO to pass structs as parameters by copy
		if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
		{
#ifdef CMC_DEBUG
			fprintf(stderr, "simple\n");
#endif

			switch (pParamTypeDescr->eTypeClass)
			{
				case typelib_TypeClass_FLOAT:
					if (nf < ia64::MAX_SSE_REGS && ng < ia64::MAX_GPR_REGS)
					{
                        float tmp = (float) (*((double *)fpreg));
                        (*((float *) fpreg)) = tmp;
						pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
						nf++;
                        gpreg++;
                        ng++;
					}
					else
                    {
						pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
					break;
				case typelib_TypeClass_DOUBLE:
					if (nf < ia64::MAX_SSE_REGS && ng < ia64::MAX_GPR_REGS)
					{
						pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
						nf++;
                        gpreg++;
                        ng++;
					}
					else
                    {
						pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
					break;
                case typelib_TypeClass_BYTE:
                case typelib_TypeClass_BOOLEAN:
                case typelib_TypeClass_CHAR:
                case typelib_TypeClass_SHORT:
                case typelib_TypeClass_UNSIGNED_SHORT:
		        case typelib_TypeClass_ENUM:
                case typelib_TypeClass_LONG:
                case typelib_TypeClass_UNSIGNED_LONG:
				default:
					if (ng < ia64::MAX_GPR_REGS)
					{
						pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++;
						ng++;
					}
					else
                    {
						pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
					break;
		        }

		        // no longer needed
				TYPELIB_DANGER_RELEASE( pParamTypeDescr );
		}
		else // ptr to complex value | ref
		{
#ifdef CMC_DEBUG
			fprintf(stderr, "complex, ng is %d\n", ng);
#endif
            void *pCppStack; //temporary stack pointer

			if (ng < ia64::MAX_GPR_REGS)
			{
		        pCppArgs[nPos] = pCppStack = *gpreg++;
			    ng++;
			}
			else
            {
			    pCppArgs[nPos] = pCppStack = *ovrflw;
                bOverFlowUsed = true;
            }
            if (bOverFlowUsed) ovrflw++;

			if (! rParam.bIn) // is pure out
			{
				// uno out is unconstructed mem!
				pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
				pTempIndizes[nTempIndizes] = nPos;
				// will be released at reconversion
				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
			}
			// is in/inout
			else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
			{
				uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
										pCppStack, pParamTypeDescr,
										pThis->getBridge()->getCpp2Uno() );
				pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
				// will be released at reconversion
				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
			}
			else // direct way
			{
				pUnoArgs[nPos] = pCppStack;
				// no longer needed
				TYPELIB_DANGER_RELEASE( pParamTypeDescr );
			}
		}
	}

#ifdef CMC_DEBUG
	fprintf(stderr, "end of params\n");
#endif

	// ExceptionHolder
	uno_Any aUnoExc; // Any will be constructed by callee
	uno_Any * pUnoExc = &aUnoExc;

	// invoke uno dispatch call
	(*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );

	// in case an exception occured...
	if (pUnoExc)
	{
		// destruct temporary in/inout params
		for ( ; nTempIndizes--; )
		{
			sal_Int32 nIndex = pTempIndizes[nTempIndizes];

			if (pParams[nIndex].bIn) // is in/inout => was constructed
				uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
			TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
		}
		if (pReturnTypeDescr)
			TYPELIB_DANGER_RELEASE( pReturnTypeDescr );

		CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() );
                // has to destruct the any
		// is here for dummy
		return typelib_TypeClass_VOID;
	}
	else // else no exception occured...
	{
		// temporary params
		for ( ; nTempIndizes--; )
		{
			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
			typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];

			if (pParams[nIndex].bOut) // inout/out
			{
				// convert and assign
				uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
				uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
										pThis->getBridge()->getUno2Cpp() );
			}
			// destroy temp uno param
			uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );

			TYPELIB_DANGER_RELEASE( pParamTypeDescr );
		}
		// return
		if (pCppReturn) // has complex return
		{
			if (pUnoReturn != pCppReturn) // needs reconversion
			{
				uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
										pThis->getBridge()->getUno2Cpp() );
				// destroy temp uno return
				uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
			}
			// complex return ptr is set to return reg
			*(void **)pRegisterReturn = pCppReturn;
		}
		if (pReturnTypeDescr)
		{
			typelib_TypeClass eRet = ia64::return_via_r8_buffer(pReturnTypeRef) ? typelib_TypeClass_VOID : (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
			TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
			return eRet;
		}
		else
			return typelib_TypeClass_VOID;
	}
}


//==================================================================================================
static typelib_TypeClass cpp_mediate(
	sal_uInt64 nOffsetAndIndex,
        void ** gpreg, void ** fpreg, long sp, long r8,
	sal_Int64 * pRegisterReturn /* space for register return */ )
{
    OSL_ENSURE( sizeof(sal_Int64)==sizeof(void *), "### unexpected!" );

    sal_Int32 nVtableOffset = (nOffsetAndIndex >> 32);
    sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);

    void ** ovrflw = (void**)(sp);

    // gpreg:  [ret *], this, [other gpr params]
    // fpreg:  [fpr params]
    // ovrflw: [gpr or fpr params (properly aligned)]

    void * pThis;
    if (nFunctionIndex & 0x80000000 )
    {
	nFunctionIndex &= 0x7fffffff;
	pThis = gpreg[1];
#ifdef CMC_DEBUG
	fprintf(stderr, "pThis is gpreg[1]\n");
#endif
    }
    else
    {
	pThis = gpreg[0];
#ifdef CMC_DEBUG
	fprintf(stderr, "pThis is gpreg[0]\n");
#endif
    }

#ifdef CMC_DEBUG
    fprintf(stderr, "pThis is %p\n", pThis);
#endif

    pThis = static_cast< char * >(pThis) - nVtableOffset;

#ifdef CMC_DEBUG
    fprintf(stderr, "pThis is now %p\n", pThis);
#endif

    bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
	    = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
			pThis);

    typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();

#ifdef CMC_DEBUG
    fprintf(stderr, "indexes are %d %d\n", nFunctionIndex, pTypeDescr->nMapFunctionIndexToMemberIndex);
#endif

	OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
	if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
	{
		throw RuntimeException(
            rtl::OUString::createFromAscii("illegal vtable index!"),
            (XInterface *)pThis );
	}

	// determine called method
	sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
	OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );

#ifdef CMC_DEBUG
	fprintf(stderr, "members are %d %d\n", nMemberPos, pTypeDescr->nAllMembers);
#endif

	TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );

	typelib_TypeClass eRet;
	switch (aMemberDescr.get()->eTypeClass)
	{
	case typelib_TypeClass_INTERFACE_ATTRIBUTE:
	{
		if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
		{
			// is GET method
			eRet = cpp2uno_call(
				pCppI, aMemberDescr.get(),
				((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
				0, 0, // no params
				r8, gpreg, fpreg, ovrflw, pRegisterReturn );
		}
		else
		{
			// is SET method
			typelib_MethodParameter aParam;
			aParam.pTypeRef =
				((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
			aParam.bIn		= sal_True;
			aParam.bOut		= sal_False;

			eRet = cpp2uno_call(
				pCppI, aMemberDescr.get(),
				0, // indicates void return
				1, &aParam,
				r8, gpreg, fpreg, ovrflw, pRegisterReturn );
		}
		break;
	}
	case typelib_TypeClass_INTERFACE_METHOD:
	{
		// is METHOD
		switch (nFunctionIndex)
		{
		case 1: // acquire()
			pCppI->acquireProxy(); // non virtual call!
			eRet = typelib_TypeClass_VOID;
			break;
		case 2: // release()
			pCppI->releaseProxy(); // non virtual call!
			eRet = typelib_TypeClass_VOID;
			break;
		case 0: // queryInterface() opt
		{
			typelib_TypeDescription * pTD = 0;
			TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() );
			if (pTD)
			{
                XInterface * pInterface = 0;
                (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
                    pCppI->getBridge()->getCppEnv(),
                    (void **)&pInterface, pCppI->getOid().pData,
                    (typelib_InterfaceTypeDescription *)pTD );

                if (pInterface)
                {
                    ::uno_any_construct(
                        reinterpret_cast< uno_Any * >( gpreg[0] ),
                        &pInterface, pTD, cpp_acquire );
                    pInterface->release();
                    TYPELIB_DANGER_RELEASE( pTD );
                    *(void **)pRegisterReturn = gpreg[0];
                    eRet = typelib_TypeClass_ANY;
                    break;
                }
                TYPELIB_DANGER_RELEASE( pTD );
			}
		} // else perform queryInterface()
		default:
			eRet = cpp2uno_call(
				pCppI, aMemberDescr.get(),
				((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
				((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
				((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
				r8, gpreg, fpreg, ovrflw, pRegisterReturn );
		}
		break;
	}
	default:
	{
#ifdef CMC_DEBUG
	    fprintf(stderr, "screwed\n");
#endif

		throw RuntimeException(
            rtl::OUString::createFromAscii("no member description found!"),
            (XInterface *)pThis );
		// is here for dummy
		eRet = typelib_TypeClass_VOID;
	}
	}

#ifdef CMC_DEBUG
        fprintf(stderr, "end of cpp_mediate\n");
#endif
    return eRet;
}
}

extern "C" ia64::RegReturn cpp_vtable_call(
    long in0, long in1, long in2, long in3, long in4, long in5, long in6, long in7,
    long firstonstack
    )
{
    register long r15 asm("r15");
    long r8 = r15;

    register long r14 asm("r14");
    long nOffsetAndIndex = r14;

    long sp = (long)&firstonstack;

    sal_uInt64 gpreg[ia64::MAX_GPR_REGS];
    gpreg[0] = in0;
    gpreg[1] = in1;
    gpreg[2] = in2;
    gpreg[3] = in3;
    gpreg[4] = in4;
    gpreg[5] = in5;
    gpreg[6] = in6;
    gpreg[7] = in7;

    double fpreg[ia64::MAX_SSE_REGS];
    register double f8  asm("f8");  fpreg[0] =  f8;
    register double f9  asm("f9");  fpreg[1] =  f9;
    register double f10 asm("f10"); fpreg[2] = f10;
    register double f11 asm("f11"); fpreg[3] = f11;
    register double f12 asm("f12"); fpreg[4] = f12;
    register double f13 asm("f13"); fpreg[5] = f13;
    register double f14 asm("f14"); fpreg[6] = f14;
    register double f15 asm("f15"); fpreg[7] = f15;

#ifdef CMC_DEBUG
	fprintf(stderr, "cpp_vtable_call called with %lx\n", nOffsetAndIndex);
	fprintf(stderr, "adump is %lx %lx %lx %lx %lx %lx %lx %lx\n", in0, in1, in2, in3, in4, in5, in6, in7);
	fprintf(stderr, "bdump is %f %f %f %f %f %f %f %f\n", f8, f9, f10, f11, f12, f13, f14, f15);
#endif

    volatile long nRegReturn[4] = { 0 };

    typelib_TypeClass aType =
        cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, sp, r8, (sal_Int64*)&nRegReturn[0]);

    ia64::RegReturn ret;
    switch( aType )
    {
        case typelib_TypeClass_VOID:
            break;
        case typelib_TypeClass_BOOLEAN:
        case typelib_TypeClass_BYTE:
        case typelib_TypeClass_CHAR:
        case typelib_TypeClass_UNSIGNED_SHORT:
        case typelib_TypeClass_SHORT:
        case typelib_TypeClass_ENUM:
        case typelib_TypeClass_UNSIGNED_LONG:
        case typelib_TypeClass_LONG:
        case typelib_TypeClass_UNSIGNED_HYPER:
        case typelib_TypeClass_HYPER:
            ret.r8 = nRegReturn[0];
            break;
        case typelib_TypeClass_FLOAT:
            asm volatile("ldfs f8=%0" : : "m"((*((float*)&nRegReturn))) : "f8");
            break;
        case typelib_TypeClass_DOUBLE:
            asm volatile("ldfd f8=%0" : : "m"((*((double*)&nRegReturn))) : "f8");
            break;
        case typelib_TypeClass_STRUCT:
	case typelib_TypeClass_EXCEPTION:
	{
            ret.r8 = nRegReturn[0];
            ret.r9 = nRegReturn[1];
            ret.r10 = nRegReturn[2];
            ret.r11 = nRegReturn[3];
            break;
	}
        default:
	    break;
    }
    return ret;
}

namespace
{
const int codeSnippetSize = 40;

bridges::cpp_uno::shared::VtableFactory::Slot codeSnippet( unsigned char * code, sal_PtrDiff writetoexecdiff, sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
                              bool bHasHiddenParam )
{
#ifdef CMC_DEBUG
    fprintf(stderr, "size is %d\n", codeSnippetSize);
    fprintf(stderr,"in codeSnippet functionIndex is %x\n", nFunctionIndex);
    fprintf(stderr,"in codeSnippet vtableOffset is %x\n", nVtableOffset);
#endif

    sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex );

    if ( bHasHiddenParam )
        nOffsetAndIndex |= 0x80000000;

    long *raw = (long *)code;

    bridges::cpp_uno::shared::VtableFactory::Slot* destination = (bridges::cpp_uno::shared::VtableFactory::Slot*)cpp_vtable_call;

    raw[0] = (long)&privateSnippetExecutor;
    raw[1] = (long)&raw[2];
    raw[2] = nOffsetAndIndex;
    raw[3] = destination->gp_value;

    return *(bridges::cpp_uno::shared::VtableFactory::Slot*)(code+writetoexecdiff);
}
}

void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *, unsigned char const *)
{
}

bridges::cpp_uno::shared::VtableFactory::Slot * bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
{
    return static_cast< Slot * >(block) + 2;
}


sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
    sal_Int32 slotCount)
{
    return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
}

bridges::cpp_uno::shared::VtableFactory::Slot* bridges::cpp_uno::shared::VtableFactory::initializeBlock(void * block, sal_Int32 slotCount)
{
    Slot * slots = mapBlockToVtable(block);
    Slot foo = {0,0};
    slots[-2] = foo;
    slots[-1] = foo;
    return slots + slotCount;
}

unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
    Slot ** in_slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
    typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
    sal_Int32 functionCount, sal_Int32 vtableOffset)
{
    (*in_slots) -= functionCount;
    Slot * slots = *in_slots;
#ifdef CMC_DEBUG
    fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
    fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
#endif

    for (sal_Int32 i = 0; i < type->nMembers; ++i) {
        typelib_TypeDescription * member = 0;
        TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
        OSL_ASSERT(member != 0);
        switch (member->eTypeClass) {
        case typelib_TypeClass_INTERFACE_ATTRIBUTE:
            // Getter:
            *slots++ = codeSnippet(
                code, writetoexecdiff, functionOffset++, vtableOffset,
                ia64::return_in_hidden_param(
                    reinterpret_cast<
                    typelib_InterfaceAttributeTypeDescription * >(
                        member)->pAttributeTypeRef));
            code += codeSnippetSize;


            // Setter:
            if (!reinterpret_cast<
                typelib_InterfaceAttributeTypeDescription * >(
                    member)->bReadOnly)
            {
                *slots++ = codeSnippet(code, writetoexecdiff, functionOffset++, vtableOffset, false);
            	code += codeSnippetSize;
            }
            break;

        case typelib_TypeClass_INTERFACE_METHOD:
            *slots++ = codeSnippet(
                code, writetoexecdiff, functionOffset++, vtableOffset,
                ia64::return_in_hidden_param(
                    reinterpret_cast<
                    typelib_InterfaceMethodTypeDescription * >(
                        member)->pReturnTypeRef));
            code += codeSnippetSize;
            break;

        default:
            OSL_ASSERT(false);
            break;
        }
        TYPELIB_DANGER_RELEASE(member);
    }
    return code;
}

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