summaryrefslogtreecommitdiff
path: root/bridges/source/cpp_uno/gcc3_solaris_sparc/uno2cpp.cxx
blob: b2967f78dcdaf89d8f5e4c7e317c40f8558192a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: uno2cpp.cxx,v $
 * $Revision: 1.7 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"
#include <malloc.h>
#include <com/sun/star/uno/genfunc.hxx>
#include <uno/data.h>

#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/types.hxx"
#include "bridges/cpp_uno/shared/unointerfaceproxy.hxx"
#include "bridges/cpp_uno/shared/vtables.hxx"

#include "share.hxx"

#include <sal/alloca.h>

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

namespace
{
//==================================================================================================
// The call instruction within the asm section of callVirtualMethod may throw
// exceptions.  So that the compiler handles this correctly, it is important
// that (a) callVirtualMethod might call dummy_can_throw_anything (although this
// never happens at runtime), which in turn can throw exceptions, and (b)
// callVirtualMethod is not inlined at its call site (so that any exceptions are
// caught which are thrown from the instruction calling callVirtualMethod):

void callVirtualMethod( void * pAdjustedThisPtr,
                        sal_Int32 nVtableIndex,
                        void * pRegisterReturn,
                        typelib_TypeClass eReturnType,
                        sal_Int32 * pStackLongs,
                        sal_Int32 nStackLongs ) __attribute__((noinline));

void callVirtualMethod( void * pAdjustedThisPtr,
                        sal_Int32 nVtableIndex,
                        void * pRegisterReturn,
                        typelib_TypeClass eReturnType,
                        sal_Int32 * pStackLongs,
                        sal_Int32 nStackLongs )
{
    // parameter list is mixed list of * and values
    // reference parameters are pointers

    OSL_ENSURE( pStackLongs && pAdjustedThisPtr, "### null ptr!" );
    OSL_ENSURE( (sizeof(void *) == 4) &&
                 (sizeof(sal_Int32) == 4), "### unexpected size of int!" );
    OSL_ENSURE( nStackLongs && pStackLongs, "### no stack in callVirtualMethod !" );

    // never called
    if (! pAdjustedThisPtr) CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything("xxx"); // address something

    volatile long o0 = 0, o1 = 0; // for register returns
    volatile double f0d = 0;
    volatile float f0f = 0;
    volatile long long saveReg[7];

    __asm__ (
        // save registers
        "std %%l0, [%4]\n\t"
        "mov %4, %%l0\n\t"
        "mov %%l0, %%l1\n\t"
        "add %%l0, 8, %%l0\n\t"
        "std %%l2, [%%l0]\n\t"
        "add %%l0, 8, %%l0\n\t"
        "std %%l4, [%%l0]\n\t"
        "add %%l0, 8, %%l0\n\t"
        "std %%o0, [%%l0]\n\t"
        "add %%l0, 8, %%l0\n\t"
        "std %%o2, [%%l0]\n\t"
        "add %%l0, 8, %%l0\n\t"
        "std %%o4, [%%l0]\n\t"
        "add %%l0, 8, %%l0\n\t"
        "std %%l6, [%%l0]\n\t"
        "mov %%l1, %%l7\n\t"

        // increase our own stackframe if necessary
        "mov %%sp, %%l3\n\t"		// save stack ptr for readjustment

        "subcc %%i5, 7, %%l0\n\t"
        "ble .LmoveOn\n\t"
        "nop\n\t"

        "sll %%l0, 2, %%l0\n\t"
        "add %%l0, 96, %%l0\n\t"
        "mov %%sp, %%l1\n\t"		// old stack ptr
        "sub %%sp, %%l0, %%l0\n\t"	// future stack ptr
        "andcc %%l0, 7, %%g0\n\t"	// align stack to 8
        "be .LisAligned\n\t"
        "nop\n\t"
        "sub %%l0, 4, %%l0\n"
    ".LisAligned:\n\t"
        "mov %%l0, %%o5\n\t"			// save newly computed stack ptr
        "add %%g0, 16, %%o4\n"

        // now copy longs down to save register window
        // and local variables
    ".LcopyDown:\n\t"
        "ld [%%l1], %%l2\n\t"
        "st %%l2,[%%l0]\n\t"
        "add %%l0, 4, %%l0\n\t"
        "add %%l1, 4, %%l1\n\t"
        "subcc %%o4, 1, %%o4\n\t"
        "bne .LcopyDown\n\t"

        "mov %%o5, %%sp\n\t"		// move new stack ptr (hopefully) atomically
        // while register window is valid in both spaces
        // (scheduling might hit in copyDown loop)

        "sub %%i5, 7, %%l0\n\t"		// copy parameters past the sixth to stack
        "add %%i4, 28, %%l1\n\t"
        "add %%sp, 92, %%l2\n"
    ".LcopyLong:\n\t"
        "ld [%%l1], %%o0\n\t"
        "st %%o0, [%%l2]\n\t"
        "add %%l1, 4, %%l1\n\t"
        "add %%l2, 4, %%l2\n\t"
        "subcc %%l0, 1, %%l0\n\t"
        "bne .LcopyLong\n\t"
        "nop\n"

    ".LmoveOn:\n\t"
        "mov %%i5, %%l0\n\t"		// prepare out registers
        "mov %%i4, %%l1\n\t"

        "ld [%%l1], %%o0\n\t"		// prepare complex return ptr
        "st %%o0, [%%sp+64]\n\t"
        "sub %%l0, 1, %%l0\n\t"
        "add %%l1, 4, %%l1\n\t"

        "ld [%%l1], %%o0\n\t"
        "subcc %%l0, 1, %%l0\n\t"
        "be .LdoCall\n\t"
        "nop\n\t"

        "add %%l1, 4, %%l1\n\t"
        "ld [%%l1], %%o1\n\t"
        "subcc %%l0, 1, %%l0\n\t"
        "be .LdoCall\n\t"
        "nop\n\t"

        "add %%l1, 4, %%l1\n\t"
        "ld [%%l1], %%o2\n\t"
        "subcc %%l0, 1, %%l0\n\t"
        "be .LdoCall\n\t"
        "nop\n\t"

        "add %%l1, 4, %%l1\n\t"
        "ld [%%l1], %%o3\n\t"
        "subcc %%l0, 1, %%l0\n\t"
        "be .LdoCall\n\t"
        "nop\n\t"

        "add %%l1, 4, %%l1\n\t"
        "ld [%%l1], %%o4\n\t"
        "subcc %%l0, 1, %%l0\n\t"
        "be .LdoCall\n\t"
        "nop\n\t"

        "add %%l1, 4, %%l1\n\t"
        "ld [%%l1], %%o5\n"

    ".LdoCall:\n\t"
        "ld [%%i0], %%l0\n\t"		// get vtable ptr

"sll %%i1, 2, %%l6\n\t"
//        "add %%l6, 8, %%l6\n\t"
        "add %%l6, %%l0, %%l0\n\t"
// 		// vtable has 8byte wide entries,
// 		// upper half contains 2 half words, of which the first
// 		// is the this ptr patch !
// 		// first entry is (or __tf)

// 		"ldsh [%%l0], %%l6\n\t"		// load this ptr patch
// 		"add %%l6, %%o0, %%o0\n\t"	// patch this ptr

// 		"add %%l0, 4, %%l0\n\t"		// get virtual function ptr
        "ld [%%l0], %%l0\n\t"

        "ld [%%i4], %%l2\n\t"
        "subcc %%l2, %%g0, %%l2\n\t"
        "bne .LcomplexCall\n\t"
        "nop\n\t"
        "call %%l0\n\t"
        "nop\n\t"
        "ba .LcallReturned\n\t"
        "nop\n"
    ".LcomplexCall:\n\t"
        "call %%l0\n\t"
        "nop\n\t"
        "unimp\n"

    ".LcallReturned:\n\t"
        "mov %%l3, %%sp\n\t"		// readjust stack so that our locals are where they belong
        "st %%o0, %0\n\t"			// save possible return registers into our locals
        "st %%o1, %1\n\t"
        "std %%f0, %2\n\t"
        "st %%f0, %3\n\t"

        // restore registers
        "ldd [%%l7], %%l0\n\t"
        "add %%l7, 8, %%l7\n\t"
        "ldd [%%l7], %%l2\n\t"
        "add %%l7, 8, %%l7\n\t"
        "ldd [%%l7], %%l4\n\t"
        "add %%l7, 8, %%l7\n\t"
        "ldd [%%l7], %%o0\n\t"
        "add %%l7, 8, %%l7\n\t"
        "ldd [%%l7], %%o2\n\t"
        "add %%l7, 8, %%l7\n\t"
        "ldd [%%l7], %%o4\n\t"
        "add %%l7, 8, %%l7\n\t"
        "ldd [%%l7], %%l6\n\t"
        : :
        "m"(o0),
        "m"(o1),
        "m"(f0d),
        "m"(f0f),
        "r"(&saveReg[0])
        );
    switch( eReturnType )
    {
        case typelib_TypeClass_HYPER:
        case typelib_TypeClass_UNSIGNED_HYPER:
            ((long*)pRegisterReturn)[1] = o1;
        case typelib_TypeClass_LONG:
        case typelib_TypeClass_UNSIGNED_LONG:
        case typelib_TypeClass_ENUM:
            ((long*)pRegisterReturn)[0] = o0;
            break;
        case typelib_TypeClass_CHAR:
        case typelib_TypeClass_SHORT:
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(unsigned short*)pRegisterReturn = (unsigned short)o0;
            break;
        case typelib_TypeClass_BOOLEAN:
        case typelib_TypeClass_BYTE:
            *(unsigned char*)pRegisterReturn = (unsigned char)o0;
            break;
        case typelib_TypeClass_FLOAT:
            *(float*)pRegisterReturn = f0f;
            break;
        case typelib_TypeClass_DOUBLE:
            *(double*)pRegisterReturn = f0d;
            break;
    }
}

//=================================================================================================
static void 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 )
{
      // max space for: complex ret ptr, this, values|ptr ...
      char * pCppStack	=
          (char *)alloca( (nParams+2) * sizeof(sal_Int64) );
      char * pCppStackStart	= pCppStack;
    
    // return
    typelib_TypeDescription * pReturnTypeDescr = 0;
    TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
    OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
    
    void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
    
    if (pReturnTypeDescr)
    {
        if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
        {
            pCppReturn = pUnoReturn; // direct way for simple types
            *(void**)pCppStack = NULL;
        }
        else
        {
            // complex return via ptr
            pCppReturn = *(void **)pCppStack = (bridges::cpp_uno::shared::relatesToInterfaceType(pReturnTypeDescr )
                                                ? alloca( pReturnTypeDescr->nSize )
                                                : pUnoReturn); // direct way
        }
        pCppStack += sizeof(void*);
    }
    // push this
    void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI())
             + aVtableSlot.offset;
             *(void**)pCppStack = pAdjustedThisPtr;
    pCppStack += sizeof( void* );

    // stack space
    OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
    // args
    void ** pCppArgs  = (void **)alloca( 3 * sizeof(void *) * nParams );
    // indizes of values this have to be converted (interface conversion cpp<=>uno)
    sal_Int32 * pTempIndizes = (sal_Int32 *)(pCppArgs + nParams);
    // type descriptions for reconversions
    typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams));
    
    sal_Int32 nTempIndizes   = 0;
    
    for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
    {
        const typelib_MethodParameter & rParam = pParams[nPos];
        typelib_TypeDescription * pParamTypeDescr = 0;
        TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
        if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
        {
            pCppArgs[ nPos ] = CPPU_CURRENT_NAMESPACE::adjustPointer(pCppStack, pParamTypeDescr );
            
            switch (pParamTypeDescr->eTypeClass)
            {
            case typelib_TypeClass_HYPER:
            case typelib_TypeClass_UNSIGNED_HYPER:
            case typelib_TypeClass_DOUBLE:
                        OSL_ASSERT( sizeof (double) == sizeof (sal_Int64) );
                          *reinterpret_cast< sal_Int32 * >(pCppStack) =
                          *reinterpret_cast< sal_Int32 const * >(pUnoArgs[ nPos ]);
                          pCppStack += sizeof (sal_Int32);
                          *reinterpret_cast< sal_Int32 * >(pCppStack) =
                          *(reinterpret_cast< sal_Int32 const * >(pUnoArgs[ nPos ] ) + 1);
                          break;
                    default:
                          uno_copyAndConvertData(
                             pCppArgs[nPos], pUnoArgs[nPos], pParamTypeDescr,
                            pThis->getBridge()->getUno2Cpp() );
                          break;
                        }
            // no longer needed
            TYPELIB_DANGER_RELEASE( pParamTypeDescr );
        }
        else // ptr to complex value | ref
        {
            if (! rParam.bIn) // is pure out
            {
                // cpp out is constructed mem, uno out is not!
                uno_constructData(
                    *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
                    pParamTypeDescr );
                pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call
                // will be released at reconversion
                ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
            }
            // is in/inout
            else if (bridges::cpp_uno::shared::relatesToInterfaceType(
                              pParamTypeDescr ))
            {
                uno_copyAndConvertData(
                    *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
                                    pUnoArgs[nPos], pParamTypeDescr,
                    pThis->getBridge()->getUno2Cpp() );
                
                pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
                // will be released at reconversion
                ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
            }
            else // direct way
            {
                *(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos];
                // no longer needed
                TYPELIB_DANGER_RELEASE( pParamTypeDescr );
            }
        }
        pCppStack += sizeof(sal_Int32); // standard parameter length
    }

    try
    {
        int nStackLongs = (pCppStack - pCppStackStart)/sizeof(sal_Int32);
        OSL_ENSURE( !( (pCppStack - pCppStackStart ) & 3), "UNALIGNED STACK !!! (Please DO panic" );
        
        if( nStackLongs & 1 )
            // stack has to be 8 byte aligned
            nStackLongs++;
        callVirtualMethod(
            pAdjustedThisPtr,
            aVtableSlot.index,
            pCppReturn,
            pReturnTypeDescr->eTypeClass,
            (sal_Int32 *)pCppStackStart,
             nStackLongs);
        // NO exception occured...
        *ppUnoExc = 0;

        // reconvert temporary params
        for ( ; nTempIndizes--; )
        {
            sal_Int32 nIndex = pTempIndizes[nTempIndizes];
            typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
            
            if (pParams[nIndex].bIn)
            {
                if (pParams[nIndex].bOut) // inout
                {
                    uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value
                    uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
                                            pThis->getBridge()->getCpp2Uno() );
                }
            }
            else // pure out
            {
                uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
                                        pThis->getBridge()->getCpp2Uno() );
            }
            // destroy temp cpp param => cpp: every param was constructed
            uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
            
            TYPELIB_DANGER_RELEASE( pParamTypeDescr );
        }
        // return value
        if (pCppReturn && pUnoReturn != pCppReturn)
        {
            uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
                                    pThis->getBridge()->getCpp2Uno() );
            uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release );
        }
    }
     catch( ... )
     {
         // get exception
           fillUnoException( CPPU_CURRENT_NAMESPACE::__cxa_get_globals()->caughtExceptions, 
                                *ppUnoExc, pThis->getBridge()->getCpp2Uno() );

        // temporary params
        for ( ; nTempIndizes--; )
        {
            sal_Int32 nIndex = pTempIndizes[nTempIndizes];
            // destroy temp cpp param => cpp: every param was constructed
            uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], cpp_release );
            TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
        }
        // return type
        if (pReturnTypeDescr)
            TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
    }
}

}

namespace bridges { namespace cpp_uno { namespace shared {

void unoInterfaceProxyDispatch(
    uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
    void * pReturn, void * pArgs[], uno_Any ** ppException )
{
#if defined BRIDGES_DEBUG
    OString cstr( OUStringToOString( pMemberDescr->pTypeName, RTL_TEXTENCODING_ASCII_US ) );
    fprintf( stderr, "received dispatch( %s )\n", cstr.getStr() );
#endif
    
    // is my surrogate
    bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
       = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI);
    typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr;
    
    switch (pMemberDescr->eTypeClass)
    {
    case typelib_TypeClass_INTERFACE_ATTRIBUTE:
    {
     VtableSlot aVtableSlot(
                 getVtableSlot(
                     reinterpret_cast<
                         typelib_InterfaceAttributeTypeDescription const * >(
                             pMemberDescr)));
        if (pReturn)
        {
            // dependent dispatch
            cpp_call(
                pThis, aVtableSlot,
                ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef,
                0, 0, // no params
                pReturn, pArgs, ppException );
        }
        else
        {
            // is SET
            typelib_MethodParameter aParam;
            aParam.pTypeRef =
                ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef;
            aParam.bIn		= sal_True;
            aParam.bOut		= sal_False;

            typelib_TypeDescriptionReference * pReturnTypeRef = 0;
            OUString aVoidName( RTL_CONSTASCII_USTRINGPARAM("void") );
            typelib_typedescriptionreference_new(
                &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
            
            // dependent dispatch
            aVtableSlot.index += 1; // get, then set method
            cpp_call(
                pThis, aVtableSlot,
                pReturnTypeRef,
                1, &aParam,
                pReturn, pArgs, ppException );

            typelib_typedescriptionreference_release( pReturnTypeRef );
        }
        
        break;
    }
    case typelib_TypeClass_INTERFACE_METHOD:
    {
        VtableSlot aVtableSlot(
        getVtableSlot(
         reinterpret_cast<
          typelib_InterfaceMethodTypeDescription const * >(
          pMemberDescr)));
        switch (aVtableSlot.index)
        {
            // standard calls
        case 1: // acquire uno interface
            (*pUnoI->acquire)( pUnoI );
            *ppException = 0;
            break;
        case 2: // release uno interface
            (*pUnoI->release)( pUnoI );
            *ppException = 0;
            break;
        case 0: // queryInterface() opt
        {
            typelib_TypeDescription * pTD = 0;
            TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() );
            if (pTD)
            {
                uno_Interface * pInterface = 0;
         (*pThis->pBridge->getUnoEnv()->getRegisteredInterface)(
           pThis->pBridge->getUnoEnv(),
                   (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
            
                if (pInterface)
                {
                    ::uno_any_construct(
                        reinterpret_cast< uno_Any * >( pReturn ),
                        &pInterface, pTD, 0 );
                    (*pInterface->release)( pInterface );
                    TYPELIB_DANGER_RELEASE( pTD );
                    *ppException = 0;
                    break;
                }
                TYPELIB_DANGER_RELEASE( pTD );
            }
        } // else perform queryInterface()
        default:
            // dependent dispatch
            cpp_call(
                pThis, aVtableSlot,
                ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef,
                ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams,
                ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams,
                pReturn, pArgs, ppException );
        }
        break;
    }
    default:
    {
        ::com::sun::star::uno::RuntimeException aExc(
            OUString( RTL_CONSTASCII_USTRINGPARAM("illegal member type description!") ),
            ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
        
        Type const & rExcType = ::getCppuType( &aExc );
        // binary identical null reference
        ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
    }
    }
}

} } }