579 lines
20 KiB
C++
579 lines
20 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <malloc.h>
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#include <com/sun/star/uno/genfunc.hxx>
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#include <uno/data.h>
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#include <typelib/typedescription.hxx>
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#include "bridges/cpp_uno/shared/bridge.hxx"
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#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
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#include "bridges/cpp_uno/shared/types.hxx"
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#include "bridges/cpp_uno/shared/vtablefactory.hxx"
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#include "mscx.hxx"
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using namespace ::com::sun::star::uno;
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static inline typelib_TypeClass cpp2uno_call(
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bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
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const typelib_TypeDescription * pMemberTD,
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typelib_TypeDescriptionReference * pReturnTypeRef, // NULL indicates void return
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sal_Int32 nParams,
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typelib_MethodParameter * pParams,
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void ** pStack )
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{
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// Return type
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typelib_TypeDescription * pReturnTD = NULL;
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if ( pReturnTypeRef )
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TYPELIB_DANGER_GET( &pReturnTD, pReturnTypeRef );
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int nFirstRealParam = 3; // Index into pStack, past return
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// value, return address and 'this'
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// pointer.
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void * pUnoReturn = NULL;
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void * pCppReturn = NULL; // Complex return ptr: if != NULL && != pUnoReturn, reconversion need
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if ( pReturnTD )
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{
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if ( bridges::cpp_uno::shared::isSimpleType( pReturnTD ) )
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{
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pUnoReturn = pStack;
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}
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else
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{
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pCppReturn = pStack[nFirstRealParam++];
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pUnoReturn = ( bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTD )
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? alloca( pReturnTD->nSize )
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: pCppReturn ); // direct way
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}
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}
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void ** pCppIncomingParams = pStack + nFirstRealParam;
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// Unlike this method for other archs, prefer clarity to
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// micro-optimization, and allocate these array separately
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// Parameters passed to the UNO function
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void ** pUnoArgs = (void **)alloca( sizeof(void *) * nParams );
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// Parameters received from C++
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void ** pCppArgs = (void **)alloca( sizeof(void *) * nParams );
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// Indexes of values this have to be converted (interface conversion C++<=>UNO)
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int * pTempIndexes =
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(int *)alloca( sizeof(int) * nParams );
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// Type descriptions for reconversions
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typelib_TypeDescription ** ppTempParamTD =
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(typelib_TypeDescription **)alloca( sizeof(void *) * nParams );
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int nTempIndexes = 0;
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for ( int nPos = 0; nPos < nParams; ++nPos )
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{
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const typelib_MethodParameter & rParam = pParams[nPos];
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typelib_TypeDescription * pParamTD = NULL;
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TYPELIB_DANGER_GET( &pParamTD, rParam.pTypeRef );
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if ( !rParam.bOut &&
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bridges::cpp_uno::shared::isSimpleType( pParamTD ) )
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{
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pCppArgs[nPos] = pUnoArgs[nPos] = pCppIncomingParams++;
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TYPELIB_DANGER_RELEASE( pParamTD );
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}
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else // ptr to complex value | ref
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{
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void * pCppStack;
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pCppArgs[nPos] = pCppStack = *pCppIncomingParams++;
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if ( !rParam.bIn ) // Pure out
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{
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// UNO out is unconstructed mem
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pUnoArgs[nPos] = alloca( pParamTD->nSize );
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pTempIndexes[nTempIndexes] = nPos;
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// pParamTD will be released at reconversion
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ppTempParamTD[nTempIndexes++] = pParamTD;
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}
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//
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else if ( bridges::cpp_uno::shared::relatesToInterfaceType( pParamTD ) )
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{
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::uno_copyAndConvertData(
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pUnoArgs[nPos] = alloca( pParamTD->nSize ),
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pCppStack, pParamTD,
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pThis->getBridge()->getCpp2Uno() );
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pTempIndexes[nTempIndexes] = nPos; // Has to be reconverted
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// pParamTD will be released at reconversion
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ppTempParamTD[nTempIndexes++] = pParamTD;
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}
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else // direct way
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{
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pUnoArgs[nPos] = pCppStack;
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// No longer needed
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TYPELIB_DANGER_RELEASE( pParamTD );
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}
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}
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}
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// ExceptionHolder
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uno_Any aUnoExc; // Any will be constructed by callee
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uno_Any * pUnoExc = &aUnoExc;
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// invoke UNO dispatch call
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(*pThis->getUnoI()->pDispatcher)(
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pThis->getUnoI(), pMemberTD, pUnoReturn, pUnoArgs, &pUnoExc );
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// in case an exception occurred...
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if ( pUnoExc )
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{
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// Destruct temporary in/inout params
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while ( nTempIndexes-- )
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{
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int nIndex = pTempIndexes[nTempIndexes];
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if ( pParams[nIndex].bIn ) // Is in/inout => was constructed
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{
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::uno_destructData( pUnoArgs[nIndex], ppTempParamTD[nTempIndexes], 0 );
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}
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TYPELIB_DANGER_RELEASE( ppTempParamTD[nTempIndexes] );
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}
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if ( pReturnTD )
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TYPELIB_DANGER_RELEASE( pReturnTD );
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CPPU_CURRENT_NAMESPACE::mscx_raiseException(
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&aUnoExc, pThis->getBridge()->getUno2Cpp() ); // Has to destruct the any
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// Is here for dummy
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return typelib_TypeClass_VOID;
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}
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else // Else, no exception occurred...
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{
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// Temporary params
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while (nTempIndexes--)
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{
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int nIndex = pTempIndexes[nTempIndexes];
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typelib_TypeDescription * pParamTD = ppTempParamTD[nTempIndexes];
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if ( pParams[nIndex].bOut ) // inout/out
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{
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// Convert and assign
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::uno_destructData(
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pCppArgs[nIndex], pParamTD, cpp_release );
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::uno_copyAndConvertData(
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pCppArgs[nIndex], pUnoArgs[nIndex], pParamTD,
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pThis->getBridge()->getUno2Cpp() );
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}
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// Destroy temp UNO param
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::uno_destructData( pUnoArgs[nIndex], pParamTD, 0 );
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TYPELIB_DANGER_RELEASE( pParamTD );
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}
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// Return
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if ( pCppReturn ) // Has complex return
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{
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if ( pUnoReturn != pCppReturn ) // Needs reconversion
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{
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::uno_copyAndConvertData(
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pCppReturn, pUnoReturn, pReturnTD,
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pThis->getBridge()->getUno2Cpp() );
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// Destroy temp UNO return
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::uno_destructData( pUnoReturn, pReturnTD, 0 );
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}
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// Complex return ptr is set to eax
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pStack[0] = pCppReturn;
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}
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if ( pReturnTD )
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{
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typelib_TypeClass eRet = (typelib_TypeClass)pReturnTD->eTypeClass;
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TYPELIB_DANGER_RELEASE( pReturnTD );
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return eRet;
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}
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else
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return typelib_TypeClass_VOID;
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}
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}
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extern "C" typelib_TypeClass cpp_vtable_call(
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sal_Int64 nOffsetAndIndex,
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void ** pStack )
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{
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sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);
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sal_Int32 nVtableOffset = ((nOffsetAndIndex >> 32) & 0xFFFFFFFF);
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// pStack points to space for return value allocated by
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// privateSnippetExecutor() in call.asm, after which follows our
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// return address (uninteresting), then the integer or
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// floating-point register parameters (spilled by
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// privateSnippetExecutor()) from the call to the trampoline,
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// followed by stacked parameters. The first parameter is the
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// 'this' pointer. If the callee returns a large value, the
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// parameter after that is actually a pointer to where the callee
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// should store its return value.
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void * pThis = static_cast<char *>( pStack[2] ) - nVtableOffset;
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bridges::cpp_uno::shared::CppInterfaceProxy * pCppI =
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bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( pThis );
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typelib_InterfaceTypeDescription * pTD = pCppI->getTypeDescr();
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OSL_ENSURE( nFunctionIndex < pTD->nMapFunctionIndexToMemberIndex, "### illegal vtable index!\n" );
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if ( nFunctionIndex >= pTD->nMapFunctionIndexToMemberIndex )
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throw RuntimeException( rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Illegal vtable index!")),
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reinterpret_cast<XInterface *>( pCppI ) );
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// Determine called method
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int nMemberPos = pTD->pMapFunctionIndexToMemberIndex[nFunctionIndex];
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OSL_ENSURE( nMemberPos < pTD->nAllMembers, "### illegal member index!\n" );
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TypeDescription aMemberDescr( pTD->ppAllMembers[nMemberPos] );
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typelib_TypeClass eRet;
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switch ( aMemberDescr.get()->eTypeClass )
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{
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case typelib_TypeClass_INTERFACE_ATTRIBUTE:
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{
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typelib_TypeDescriptionReference *pAttrTypeRef =
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reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( aMemberDescr.get() )->pAttributeTypeRef;
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if ( pTD->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex )
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{
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// is GET method
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eRet = cpp2uno_call( pCppI, aMemberDescr.get(), pAttrTypeRef,
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0, NULL, // No params
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pStack );
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}
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else
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{
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// is SET method
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typelib_MethodParameter aParam;
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aParam.pTypeRef = pAttrTypeRef;
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aParam.bIn = sal_True;
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aParam.bOut = sal_False;
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eRet = cpp2uno_call( pCppI, aMemberDescr.get(),
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NULL, // Indicates void return
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1, &aParam,
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pStack );
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}
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break;
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}
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case typelib_TypeClass_INTERFACE_METHOD:
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{
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// is METHOD
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switch ( nFunctionIndex )
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{
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case 1: // acquire()
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pCppI->acquireProxy(); // Non virtual call!
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eRet = typelib_TypeClass_VOID;
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break;
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case 2: // release()
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pCppI->releaseProxy(); // non virtual call!
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eRet = typelib_TypeClass_VOID;
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break;
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case 0: // queryInterface() opt
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{
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typelib_TypeDescription * pTD = NULL;
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// the incoming C++ parameters are: The this
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// pointer, the hidden return value pointer, and
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// then the actual queryInterface() only
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// parameter. Thus pStack[4]..
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TYPELIB_DANGER_GET( &pTD, reinterpret_cast<Type *>( pStack[4] )->getTypeLibType() );
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if ( pTD )
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{
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XInterface * pInterface = NULL;
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(*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)
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( pCppI->getBridge()->getCppEnv(),
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(void **)&pInterface,
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pCppI->getOid().pData,
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reinterpret_cast<typelib_InterfaceTypeDescription *>( pTD ) );
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if ( pInterface )
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{
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// pStack[3] = hidden return value pointer
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::uno_any_construct( reinterpret_cast<uno_Any *>( pStack[3] ),
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&pInterface, pTD, cpp_acquire );
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pInterface->release();
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TYPELIB_DANGER_RELEASE( pTD );
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eRet = typelib_TypeClass_ANY;
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break;
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}
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TYPELIB_DANGER_RELEASE( pTD );
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}
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} // Fall through!
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default:
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{
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typelib_InterfaceMethodTypeDescription * pMethodTD =
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reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( aMemberDescr.get() );
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eRet = cpp2uno_call( pCppI, aMemberDescr.get(),
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pMethodTD->pReturnTypeRef,
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pMethodTD->nParams,
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pMethodTD->pParams,
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pStack );
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}
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}
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break;
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}
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default:
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{
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throw RuntimeException( rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("No member description found!")),
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reinterpret_cast<XInterface *>( pCppI ) );
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}
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}
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return eRet;
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}
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int const codeSnippetSize = 48;
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extern "C" char privateSnippetExecutor;
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// This function generates the code that acts as a proxy for the UNO function to be called.
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// The generated code does the following:
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// - Spills register parameters on stack
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// - Loads functionIndex and vtableOffset into scratch registers
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// - Jumps to privateSnippetExecutor
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unsigned char * codeSnippet(
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unsigned char * code,
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char param_kind[4],
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sal_Int32 nFunctionIndex,
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sal_Int32 nVtableOffset )
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{
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sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex );
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unsigned char *p = code;
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// Spill parameters
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if ( param_kind[0] == CPPU_CURRENT_NAMESPACE::REGPARAM_INT )
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{
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// mov qword ptr 8[rsp], rcx
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*p++ = 0x48; *p++ = 0x89; *p++ = 0x4C; *p++ = 0x24; *p++ = 0x08;
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}
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else
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{
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// movsd qword ptr 8[rsp], xmm0
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*p++ = 0xF2; *p++ = 0x0F; *p++ = 0x11; *p++ = 0x44; *p++ = 0x24; *p++ = 0x08;
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}
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if ( param_kind[1] == CPPU_CURRENT_NAMESPACE::REGPARAM_INT )
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{
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// mov qword ptr 16[rsp], rdx
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*p++ = 0x48; *p++ = 0x89; *p++ = 0x54; *p++ = 0x24; *p++ = 0x10;
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}
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else
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{
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// movsd qword ptr 16[rsp], xmm1
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*p++ = 0xF2; *p++ = 0x0F; *p++ = 0x11; *p++ = 0x4C; *p++ = 0x24; *p++ = 0x10;
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}
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if ( param_kind[2] == CPPU_CURRENT_NAMESPACE::REGPARAM_INT )
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{
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// mov qword ptr 24[rsp], r8
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*p++ = 0x4C; *p++ = 0x89; *p++ = 0x44; *p++ = 0x24; *p++ = 0x18;
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}
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else
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{
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// movsd qword ptr 24[rsp], xmm2
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*p++ = 0xF2; *p++ = 0x0F; *p++ = 0x11; *p++ = 0x54; *p++ = 0x24; *p++ = 0x18;
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}
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if ( param_kind[3] == CPPU_CURRENT_NAMESPACE::REGPARAM_INT )
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{
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// mov qword ptr 32[rsp], r9
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*p++ = 0x4C;*p++ = 0x89; *p++ = 0x4C; *p++ = 0x24; *p++ = 0x20;
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}
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else
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{
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// movsd qword ptr 32[rsp], xmm3
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*p++ = 0xF2; *p++ = 0x0F; *p++ = 0x11; *p++ = 0x5C; *p++ = 0x24; *p++ = 0x20;
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}
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// mov rcx, nOffsetAndIndex
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*p++ = 0x48; *p++ = 0xB9;
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*((sal_uInt64 *)p) = nOffsetAndIndex; p += 8;
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// mov r11, privateSnippetExecutor
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*p++ = 0x49; *p++ = 0xBB;
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*((void **)p) = &privateSnippetExecutor; p += 8;
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// jmp r11
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*p++ = 0x41; *p++ = 0xFF; *p++ = 0xE3;
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OSL_ASSERT( p < code + codeSnippetSize );
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return code + codeSnippetSize;
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}
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struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
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bridges::cpp_uno::shared::VtableFactory::Slot *
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bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(
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void * block )
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{
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return static_cast< Slot * >(block) + 1;
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}
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sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
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sal_Int32 slotCount )
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{
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return (slotCount + 1) * sizeof (Slot) + slotCount * codeSnippetSize;
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}
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bridges::cpp_uno::shared::VtableFactory::Slot *
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bridges::cpp_uno::shared::VtableFactory::initializeBlock(
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void * block,
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sal_Int32 slotCount )
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{
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struct Rtti {
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sal_Int32 n0, n1, n2;
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type_info * rtti;
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Rtti():
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n0(0), n1(0), n2(0),
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rtti(CPPU_CURRENT_NAMESPACE::mscx_getRTTI(
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rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
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"com.sun.star.uno.XInterface"))))
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{}
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};
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static Rtti rtti;
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Slot * slots = mapBlockToVtable(block);
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slots[-1].fn = &rtti;
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return slots + slotCount;
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}
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unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
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Slot ** slots,
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unsigned char * code,
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typelib_InterfaceTypeDescription const * type,
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sal_Int32 nFunctionOffset,
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sal_Int32 functionCount,
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sal_Int32 nVtableOffset )
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{
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(*slots) -= functionCount;
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Slot * s = *slots;
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|
|
for (int member = 0; member < type->nMembers; ++member) {
|
|
typelib_TypeDescription * pTD = NULL;
|
|
|
|
TYPELIB_DANGER_GET( &pTD, type->ppMembers[ member ] );
|
|
OSL_ASSERT( pTD );
|
|
|
|
char param_kind[4];
|
|
int nr = 0;
|
|
|
|
for (int i = 0; i < 4; ++i)
|
|
param_kind[i] = CPPU_CURRENT_NAMESPACE::REGPARAM_INT;
|
|
|
|
// 'this'
|
|
++nr;
|
|
|
|
if ( pTD->eTypeClass == typelib_TypeClass_INTERFACE_ATTRIBUTE )
|
|
{
|
|
typelib_InterfaceAttributeTypeDescription * pIfaceAttrTD =
|
|
reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( pTD );
|
|
|
|
// Getter
|
|
|
|
(s++)->fn = code;
|
|
code = codeSnippet( code, param_kind, nFunctionOffset++, nVtableOffset );
|
|
if ( ! pIfaceAttrTD->bReadOnly )
|
|
{
|
|
typelib_TypeDescription * pAttrTD = NULL;
|
|
TYPELIB_DANGER_GET( &pAttrTD, pIfaceAttrTD->pAttributeTypeRef );
|
|
OSL_ASSERT( pAttrTD );
|
|
|
|
// Setter
|
|
if ( pAttrTD->eTypeClass == typelib_TypeClass_FLOAT ||
|
|
pAttrTD->eTypeClass == typelib_TypeClass_DOUBLE )
|
|
param_kind[nr++] = CPPU_CURRENT_NAMESPACE::REGPARAM_FLT;
|
|
|
|
TYPELIB_DANGER_RELEASE( pAttrTD );
|
|
|
|
(s++)->fn = code;
|
|
code = codeSnippet( code, param_kind, nFunctionOffset++, nVtableOffset );
|
|
}
|
|
}
|
|
else if ( pTD->eTypeClass == typelib_TypeClass_INTERFACE_METHOD )
|
|
{
|
|
typelib_InterfaceMethodTypeDescription * pMethodTD =
|
|
reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( pTD );
|
|
|
|
typelib_TypeDescription * pReturnTD = NULL;
|
|
TYPELIB_DANGER_GET( &pReturnTD, pMethodTD->pReturnTypeRef );
|
|
OSL_ASSERT( pReturnTD );
|
|
|
|
if ( !bridges::cpp_uno::shared::isSimpleType( pReturnTD ) )
|
|
{
|
|
// Return value
|
|
++nr;
|
|
}
|
|
|
|
for (int param = 0; nr < 4 && param < pMethodTD->nParams; ++param, ++nr)
|
|
{
|
|
typelib_TypeDescription * pParamTD = NULL;
|
|
|
|
TYPELIB_DANGER_GET( &pParamTD, pMethodTD->pParams[param].pTypeRef );
|
|
OSL_ASSERT( pParamTD );
|
|
|
|
if ( pParamTD->eTypeClass == typelib_TypeClass_FLOAT ||
|
|
pParamTD->eTypeClass == typelib_TypeClass_DOUBLE )
|
|
param_kind[nr] = CPPU_CURRENT_NAMESPACE::REGPARAM_FLT;
|
|
|
|
TYPELIB_DANGER_RELEASE( pParamTD );
|
|
}
|
|
(s++)->fn = code;
|
|
code = codeSnippet( code, param_kind, nFunctionOffset++, nVtableOffset );
|
|
|
|
TYPELIB_DANGER_RELEASE( pReturnTD );
|
|
}
|
|
else
|
|
OSL_ASSERT( false );
|
|
|
|
TYPELIB_DANGER_RELEASE( pTD );
|
|
}
|
|
return code;
|
|
}
|
|
|
|
void bridges::cpp_uno::shared::VtableFactory::flushCode(
|
|
unsigned char const *,
|
|
unsigned char const * )
|
|
{
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|