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3  * Licensed to the Apache Software Foundation (ASF) under one
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5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
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11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
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20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_bridges.hxx"
26 
27 #include <malloc.h>
28 
29 #include <com/sun/star/uno/genfunc.hxx>
30 #include <uno/data.h>
31 
32 #include "bridges/cpp_uno/shared/bridge.hxx"
33 #include "bridges/cpp_uno/shared/types.hxx"
34 #include "bridges/cpp_uno/shared/unointerfaceproxy.hxx"
35 #include "bridges/cpp_uno/shared/vtables.hxx"
36 
37 #include "share.hxx"
38 
39 #include <stdio.h>
40 #include <string.h>
41 
42 
43 using namespace ::rtl;
44 using namespace ::com::sun::star::uno;
45 
MapReturn(long r3,double dret,typelib_TypeClass eTypeClass,void * pRegisterReturn)46 void MapReturn(long r3, double dret, typelib_TypeClass eTypeClass, void *pRegisterReturn)
47 {
48     switch (eTypeClass)
49     {
50     case typelib_TypeClass_HYPER:
51     case typelib_TypeClass_UNSIGNED_HYPER:
52             *reinterpret_cast<sal_uInt64 *>( pRegisterReturn ) = r3;
53             break;
54     case typelib_TypeClass_LONG:
55     case typelib_TypeClass_UNSIGNED_LONG:
56     case typelib_TypeClass_ENUM:
57             *reinterpret_cast<sal_uInt32 *>( pRegisterReturn ) = r3;
58             break;
59     case typelib_TypeClass_CHAR:
60     case typelib_TypeClass_SHORT:
61     case typelib_TypeClass_UNSIGNED_SHORT:
62             *reinterpret_cast<sal_uInt16 *>( pRegisterReturn ) = (unsigned short)r3;
63             break;
64     case typelib_TypeClass_BOOLEAN:
65     case typelib_TypeClass_BYTE:
66             *reinterpret_cast<sal_uInt8 *>( pRegisterReturn ) = (unsigned char)r3;
67             break;
68     case typelib_TypeClass_FLOAT:
69             *reinterpret_cast<float *>( pRegisterReturn ) = dret;
70 	    break;
71     case typelib_TypeClass_DOUBLE:
72             *reinterpret_cast<double *>( pRegisterReturn ) = dret;
73             break;
74     default:
75             break;
76     }
77 }
78 
79 namespace
80 {
81 //==================================================================================================
callVirtualMethod(void * pThis,sal_uInt32 nVtableIndex,void * pRegisterReturn,typelib_TypeDescription * pReturnTypeDescr,sal_uInt64 * pStack,sal_uInt32 nStack,sal_uInt64 * pGPR,sal_uInt32 nGPR,double * pFPR,sal_uInt32 nFPR)82 static void callVirtualMethod(void * pThis, sal_uInt32 nVtableIndex,
83 	void * pRegisterReturn, typelib_TypeDescription * pReturnTypeDescr,
84         sal_uInt64 *pStack, sal_uInt32 nStack,
85         sal_uInt64 *pGPR, sal_uInt32 nGPR,
86         double *pFPR, sal_uInt32 nFPR)
87 {
88     // Stack, if used, must be 16-bytes aligned
89     if ( nStack )
90         nStack = ( nStack + 1 ) & ~1;
91 
92     // Should not happen, but...
93     if ( nFPR > ppc64::MAX_SSE_REGS )
94         nFPR = ppc64::MAX_SSE_REGS;
95     if ( nGPR > ppc64::MAX_GPR_REGS )
96         nGPR = ppc64::MAX_GPR_REGS;
97 
98 #ifdef CMC_DEBUG
99         // Let's figure out what is really going on here
100         {
101                 fprintf( stderr, "= callVirtualMethod() =\nGPR's (%d): ", nGPR );
102                 for ( int i = 0; i < nGPR; ++i )
103                         fprintf( stderr, "0x%lx, ", pGPR[i] );
104                 fprintf( stderr, "\nFPR's (%d): ", nFPR );
105                 for ( int i = 0; i < nFPR; ++i )
106                         fprintf( stderr, "0x%lx (%f), ", pFPR[i], pFPR[i] );
107                 fprintf( stderr, "\nStack (%d): ", nStack );
108                 for ( int i = 0; i < nStack; ++i )
109                         fprintf( stderr, "0x%lx, ", pStack[i] );
110                 fprintf( stderr, "\n" );
111         }
112 #endif
113 
114     // Load parameters to stack, if necessary
115     sal_uInt64 *stack = (sal_uInt64 *) __builtin_alloca( nStack * 8 );
116     memcpy( stack, pStack, nStack * 8 );
117 
118     // Get pointer to method
119     sal_uInt64 pMethod = *((sal_uInt64 *)pThis);
120     pMethod += 8 * nVtableIndex;
121     pMethod = *((sal_uInt64 *)pMethod);
122 
123     typedef void (* FunctionCall )( sal_uInt64, sal_uInt64, sal_uInt64, sal_uInt64, sal_uInt64, sal_uInt64, sal_uInt64, sal_uInt64 );
124     FunctionCall pFunc = (FunctionCall)pMethod;
125 
126     volatile double dret;
127 
128     //  fill registers
129     __asm__ __volatile__ (
130                 "ld   3,  0(%0)\n\t"
131                 "ld   4,  8(%0)\n\t"
132                 "ld   5, 16(%0)\n\t"
133                 "ld   6, 24(%0)\n\t"
134                 "ld   7, 32(%0)\n\t"
135                 "ld   8, 40(%0)\n\t"
136                 "ld   9, 48(%0)\n\t"
137                 "ld  10, 56(%0)\n\t"
138                 "lfd  1,  0(%1)\n\t"
139                 "lfd  2,  8(%1)\n\t"
140                 "lfd  3, 16(%1)\n\t"
141                 "lfd  4, 24(%1)\n\t"
142                 "lfd  5, 32(%1)\n\t"
143                 "lfd  6, 40(%1)\n\t"
144                 "lfd  7, 48(%1)\n\t"
145                 "lfd  8, 56(%1)\n\t"
146                 "lfd  9, 64(%1)\n\t"
147                 "lfd 10, 72(%1)\n\t"
148                 "lfd 11, 80(%1)\n\t"
149                 "lfd 12, 88(%1)\n\t"
150                 "lfd 13, 96(%1)\n\t"
151                 : : "r" (pGPR), "r" (pFPR)
152           	: "r0", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10",
153                   "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7", "fr8", "fr9",
154                   "fr10", "fr11", "fr12", "fr13"
155     );
156 
157     // tell gcc that r3 to r11 are not available to it for doing the TOC and exception munge on the func call
158     register sal_uInt64 r3 asm("r3");
159     register sal_uInt64 r4 asm("r4");
160     register sal_uInt64 r5 asm("r5");
161     register sal_uInt64 r6 asm("r6");
162     register sal_uInt64 r7 asm("r7");
163     register sal_uInt64 r8 asm("r8");
164     register sal_uInt64 r9 asm("r9");
165     register sal_uInt64 r10 asm("r10");
166     register sal_uInt64 r11 asm("r11");
167 
168     (*pFunc)(r3, r4, r5, r6, r7, r8, r9, r10);
169 
170     // get return value
171     __asm__ __volatile__ (
172                 "mr     %1,     3\n\t"
173                 "mr     %2,     4\n\t"
174                 "fmr    %0,     1\n\t"
175                 : "=f" (dret), "=r" (r3), "=r" (r4) : );
176 
177     MapReturn(r3, dret, pReturnTypeDescr->eTypeClass, pRegisterReturn);
178 }
179 
180 // Macros for easier insertion of values to registers or stack
181 // pSV - pointer to the source
182 // nr - order of the value [will be increased if stored to register]
183 // pFPR, pGPR - pointer to the registers
184 // pDS - pointer to the stack [will be increased if stored here]
185 
186 // The value in %xmm register is already prepared to be retrieved as a float,
187 // thus we treat float and double the same
188 #define INSERT_FLOAT( pSV, nr, pFPR, pDS, bOverflow ) \
189         if ( nr < ppc64::MAX_SSE_REGS ) \
190                 pFPR[nr++] = *reinterpret_cast<float *>( pSV ); \
191         else \
192         	bOverFlow = true; \
193         if (bOverFlow) \
194                 *pDS++ = *reinterpret_cast<sal_uInt64 *>( pSV ); // verbatim!
195 
196 #define INSERT_DOUBLE( pSV, nr, pFPR, pDS, bOverflow ) \
197         if ( nr < ppc64::MAX_SSE_REGS ) \
198                 pFPR[nr++] = *reinterpret_cast<double *>( pSV ); \
199         else \
200         	bOverFlow = true; \
201         if (bOverFlow) \
202                 *pDS++ = *reinterpret_cast<sal_uInt64 *>( pSV ); // verbatim!
203 
204 #define INSERT_INT64( pSV, nr, pGPR, pDS, bOverflow ) \
205         if ( nr < ppc64::MAX_GPR_REGS ) \
206                 pGPR[nr++] = *reinterpret_cast<sal_uInt64 *>( pSV ); \
207         else \
208 		bOverFlow = true; \
209 	if (bOverFlow) \
210                 *pDS++ = *reinterpret_cast<sal_uInt64 *>( pSV );
211 
212 #define INSERT_INT32( pSV, nr, pGPR, pDS, bOverflow ) \
213         if ( nr < ppc64::MAX_GPR_REGS ) \
214                 pGPR[nr++] = *reinterpret_cast<sal_uInt32 *>( pSV ); \
215         else \
216                 bOverFlow = true; \
217         if (bOverFlow) \
218                 *pDS++ = *reinterpret_cast<sal_uInt32 *>( pSV );
219 
220 #define INSERT_INT16( pSV, nr, pGPR, pDS, bOverflow ) \
221         if ( nr < ppc64::MAX_GPR_REGS ) \
222                 pGPR[nr++] = *reinterpret_cast<sal_uInt16 *>( pSV ); \
223         else \
224                 bOverFlow = true; \
225         if (bOverFlow) \
226                 *pDS++ = *reinterpret_cast<sal_uInt16 *>( pSV );
227 
228 #define INSERT_INT8( pSV, nr, pGPR, pDS, bOverflow ) \
229         if ( nr < ppc64::MAX_GPR_REGS ) \
230                 pGPR[nr++] = *reinterpret_cast<sal_uInt8 *>( pSV ); \
231         else \
232                 bOverFlow = true; \
233         if (bOverFlow) \
234                 *pDS++ = *reinterpret_cast<sal_uInt8 *>( pSV );
235 
236 //==================================================================================================
cpp_call(bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,bridges::cpp_uno::shared::VtableSlot aVtableSlot,typelib_TypeDescriptionReference * pReturnTypeRef,sal_Int32 nParams,typelib_MethodParameter * pParams,void * pUnoReturn,void * pUnoArgs[],uno_Any ** ppUnoExc)237 static void cpp_call(
238 	bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,
239 	bridges::cpp_uno::shared::VtableSlot  aVtableSlot,
240 	typelib_TypeDescriptionReference * pReturnTypeRef,
241 	sal_Int32 nParams, typelib_MethodParameter * pParams,
242 	void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc )
243 {
244   	// max space for: [complex ret ptr], values|ptr ...
245   	sal_uInt64 * pStack = (sal_uInt64 *)alloca( (nParams+3) * sizeof(sal_Int64) );
246   	sal_uInt64 * pStackStart = pStack;
247 
248 	sal_uInt64 pGPR[ppc64::MAX_GPR_REGS];
249 	sal_uInt32 nGPR = 0;
250 
251 	double pFPR[ppc64::MAX_SSE_REGS];
252 	sal_uInt32 nFPR = 0;
253 
254 	// return
255 	typelib_TypeDescription * pReturnTypeDescr = 0;
256 	TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
257 	OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
258 
259 	void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
260 
261         bool bOverFlow = false;
262 
263 	if (pReturnTypeDescr)
264 	{
265 #ifdef CMC_DEBUG
266 		fprintf(stderr, "return type is %d\n", pReturnTypeDescr->eTypeClass);
267 #endif
268 		if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
269 		{
270 			pCppReturn = pUnoReturn; // direct way for simple types
271 #ifdef CMC_DEBUG
272 			fprintf(stderr, "simple return\n");
273 #endif
274 		}
275 		else
276 		{
277 			// complex return via ptr
278 			pCppReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
279 			       ? alloca( pReturnTypeDescr->nSize ) : pUnoReturn);
280 #ifdef CMC_DEBUG
281 			fprintf(stderr, "pCppReturn/pUnoReturn is %lx/%lx", pCppReturn, pUnoReturn);
282 #endif
283 			INSERT_INT64( &pCppReturn, nGPR, pGPR, pStack, bOverFlow );
284 		}
285 	}
286 	// push "this" pointer
287         void * pAdjustedThisPtr = reinterpret_cast< void ** >( pThis->getCppI() ) + aVtableSlot.offset;
288 #ifdef CMC_DEBUG
289 	fprintf(stderr, "this pointer is %p\n", pAdjustedThisPtr);
290 #endif
291 	INSERT_INT64( &pAdjustedThisPtr, nGPR, pGPR, pStack, bOverFlow );
292 
293         // Args
294         void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * nParams );
295 	// indizes of values this have to be converted (interface conversion cpp<=>uno)
296 	sal_Int32 * pTempIndizes = (sal_Int32 *)(pCppArgs + nParams);
297 	// type descriptions for reconversions
298 	typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams));
299 
300 	sal_Int32 nTempIndizes   = 0;
301 
302 #ifdef CMC_DEBUG
303 	fprintf(stderr, "n params is %d\n", nParams);
304 #endif
305 
306 	for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
307 	{
308 		const typelib_MethodParameter & rParam = pParams[nPos];
309 		typelib_TypeDescription * pParamTypeDescr = 0;
310 		TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
311 
312 #ifdef CMC_DEBUG
313 		fprintf(stderr, "param %d is %d %d %d\n", nPos, rParam.bOut, bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ),
314 			pParamTypeDescr->eTypeClass);
315 #endif
316 
317 		if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
318 		{
319 //			uno_copyAndConvertData( pCppArgs[nPos] = alloca( 8 ), pUnoArgs[nPos], pParamTypeDescr,
320 			uno_copyAndConvertData( pCppArgs[nPos] = pStack, pUnoArgs[nPos], pParamTypeDescr,
321 									pThis->getBridge()->getUno2Cpp() );
322 		        switch (pParamTypeDescr->eTypeClass)
323                         {
324                         case typelib_TypeClass_HYPER:
325                         case typelib_TypeClass_UNSIGNED_HYPER:
326 #ifdef CMC_DEBUG
327 				fprintf(stderr, "hyper is %lx\n", pCppArgs[nPos]);
328 #endif
329                                 INSERT_INT64( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
330                                 break;
331                         case typelib_TypeClass_LONG:
332                         case typelib_TypeClass_UNSIGNED_LONG:
333                         case typelib_TypeClass_ENUM:
334 #ifdef CMC_DEBUG
335 				fprintf(stderr, "long is %x\n", pCppArgs[nPos]);
336 #endif
337                                 INSERT_INT32( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
338                                 break;
339                         case typelib_TypeClass_SHORT:
340                         case typelib_TypeClass_CHAR:
341                         case typelib_TypeClass_UNSIGNED_SHORT:
342                                 INSERT_INT16( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
343                                 break;
344                         case typelib_TypeClass_BOOLEAN:
345                         case typelib_TypeClass_BYTE:
346                                 INSERT_INT8( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
347                                 break;
348                         case typelib_TypeClass_FLOAT:
349                                 INSERT_FLOAT( pCppArgs[nPos], nFPR, pFPR, pStack, bOverFlow );
350 				break;
351                         case typelib_TypeClass_DOUBLE:
352                                 INSERT_DOUBLE( pCppArgs[nPos], nFPR, pFPR, pStack, bOverFlow );
353                                 break;
354                         }
355 
356                         // no longer needed
357                         TYPELIB_DANGER_RELEASE( pParamTypeDescr );
358 
359 		}
360 		else // ptr to complex value | ref
361 		{
362 #ifdef CMC_DEBUG
363 			fprintf(stderr, "complex type again %d\n", rParam.bIn);
364 #endif
365                         if (! rParam.bIn) // is pure out
366                         {
367 #ifdef CMC_DEBUG
368 				fprintf(stderr, "complex size is %d\n", pParamTypeDescr->nSize );
369 #endif
370                                 // cpp out is constructed mem, uno out is not!
371                                 uno_constructData(
372                                         pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
373                                         pParamTypeDescr );
374                                 pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call
375                                 // will be released at reconversion
376                                 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
377                         }
378                         // is in/inout
379                         else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
380                         {
381 #ifdef CMC_DEBUG
382 				fprintf(stderr, "this one\n");
383 #endif
384                                 uno_copyAndConvertData(
385                                         pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
386                                         pUnoArgs[nPos], pParamTypeDescr, pThis->getBridge()->getUno2Cpp() );
387 
388                                 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
389                                 // will be released at reconversion
390                                 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
391                         }
392                         else // direct way
393                         {
394 #ifdef CMC_DEBUG
395 				fprintf(stderr, "that one, passing %lx through\n", pUnoArgs[nPos]);
396 #endif
397                                 pCppArgs[nPos] = pUnoArgs[nPos];
398                                 // no longer needed
399                                 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
400                         }
401                         INSERT_INT64( &(pCppArgs[nPos]), nGPR, pGPR, pStack, bOverFlow );
402 		}
403 	}
404 
405 	try
406 	{
407                callVirtualMethod(
408                         pAdjustedThisPtr, aVtableSlot.index,
409                         pCppReturn, pReturnTypeDescr,
410                         pStackStart, ( pStack - pStackStart ),
411                         pGPR, nGPR,
412                         pFPR, nFPR );
413 		// NO exception occurred...
414 		*ppUnoExc = 0;
415 
416 		// reconvert temporary params
417 		for ( ; nTempIndizes--; )
418 		{
419 			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
420 			typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
421 
422 			if (pParams[nIndex].bIn)
423 			{
424 				if (pParams[nIndex].bOut) // inout
425 				{
426 					uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value
427 					uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
428 											pThis->getBridge()->getCpp2Uno() );
429 				}
430 			}
431 			else // pure out
432 			{
433 				uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
434 										pThis->getBridge()->getCpp2Uno() );
435 			}
436 			// destroy temp cpp param => cpp: every param was constructed
437 			uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
438 
439 			TYPELIB_DANGER_RELEASE( pParamTypeDescr );
440 		}
441 		// return value
442 		if (pCppReturn && pUnoReturn != pCppReturn)
443 		{
444 			uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
445 									pThis->getBridge()->getCpp2Uno() );
446 			uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release );
447 		}
448 	}
449  	catch (...)
450  	{
451   		// fill uno exception
452 		fillUnoException( CPPU_CURRENT_NAMESPACE::__cxa_get_globals()->caughtExceptions,
453                                   *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
454 
455 		// temporary params
456 		for ( ; nTempIndizes--; )
457 		{
458 			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
459 			// destroy temp cpp param => cpp: every param was constructed
460 			uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], cpp_release );
461 			TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
462 		}
463 		// return type
464 		if (pReturnTypeDescr)
465 			TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
466 	}
467 }
468 
469 }
470 
471 namespace bridges { namespace cpp_uno { namespace shared {
472 
unoInterfaceProxyDispatch(uno_Interface * pUnoI,const typelib_TypeDescription * pMemberDescr,void * pReturn,void * pArgs[],uno_Any ** ppException)473 void unoInterfaceProxyDispatch(
474 	uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
475 	void * pReturn, void * pArgs[], uno_Any ** ppException )
476 {
477 	// is my surrogate
478         bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
479             = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy *> (pUnoI);
480 	typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr;
481 
482 	switch (pMemberDescr->eTypeClass)
483 	{
484 	case typelib_TypeClass_INTERFACE_ATTRIBUTE:
485 	{
486 
487         VtableSlot aVtableSlot(
488             getVtableSlot(
489                 reinterpret_cast<
490                     typelib_InterfaceAttributeTypeDescription const * >(
491                         pMemberDescr)));
492 
493 		if (pReturn)
494 		{
495 			// dependent dispatch
496 			cpp_call(
497 				pThis, aVtableSlot,
498 				((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef,
499 				0, 0, // no params
500 				pReturn, pArgs, ppException );
501 		}
502 		else
503 		{
504 			// is SET
505 			typelib_MethodParameter aParam;
506 			aParam.pTypeRef =
507 				((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef;
508 			aParam.bIn		= sal_True;
509 			aParam.bOut		= sal_False;
510 
511 			typelib_TypeDescriptionReference * pReturnTypeRef = 0;
512 			OUString aVoidName( RTL_CONSTASCII_USTRINGPARAM("void") );
513 			typelib_typedescriptionreference_new(
514 				&pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
515 
516 			// dependent dispatch
517                         aVtableSlot.index += 1; //get then set method
518 			cpp_call(
519 				pThis, aVtableSlot,
520 				pReturnTypeRef,
521 				1, &aParam,
522 				pReturn, pArgs, ppException );
523 
524 			typelib_typedescriptionreference_release( pReturnTypeRef );
525 		}
526 
527 		break;
528 	}
529 	case typelib_TypeClass_INTERFACE_METHOD:
530 	{
531 
532         VtableSlot aVtableSlot(
533             getVtableSlot(
534                 reinterpret_cast<
535                     typelib_InterfaceMethodTypeDescription const * >(
536                         pMemberDescr)));
537 		switch (aVtableSlot.index)
538 		{
539 			// standard calls
540 		case 1: // acquire uno interface
541 			(*pUnoI->acquire)( pUnoI );
542 			*ppException = 0;
543 			break;
544 		case 2: // release uno interface
545 			(*pUnoI->release)( pUnoI );
546 			*ppException = 0;
547 			break;
548 		case 0: // queryInterface() opt
549 		{
550 			typelib_TypeDescription * pTD = 0;
551 			TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() );
552 			if (pTD)
553 			{
554                 uno_Interface * pInterface = 0;
555                 (*pThis->pBridge->getUnoEnv()->getRegisteredInterface)(
556                     pThis->pBridge->getUnoEnv(),
557                     (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
558 
559                 if (pInterface)
560                 {
561                     ::uno_any_construct(
562                         reinterpret_cast< uno_Any * >( pReturn ),
563                         &pInterface, pTD, 0 );
564                     (*pInterface->release)( pInterface );
565                     TYPELIB_DANGER_RELEASE( pTD );
566                     *ppException = 0;
567                     break;
568                 }
569                 TYPELIB_DANGER_RELEASE( pTD );
570             }
571 		} // else perform queryInterface()
572 		default:
573 			// dependent dispatch
574 			cpp_call(
575 				pThis, aVtableSlot,
576 				((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef,
577 				((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams,
578 				((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams,
579 				pReturn, pArgs, ppException );
580 		}
581 		break;
582 	}
583 	default:
584 	{
585 		::com::sun::star::uno::RuntimeException aExc(
586 			OUString( RTL_CONSTASCII_USTRINGPARAM("illegal member type description!") ),
587 			::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
588 
589 		Type const & rExcType = ::getCppuType( &aExc );
590 		// binary identical null reference
591 		::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
592 	}
593 	}
594 }
595 
596 } } }
597