libreoffice/cppu/source/uno/assign.hxx

/*************************************************************************
 *
 *  $RCSfile: assign.hxx,v $
 *
 *  $Revision: 1.14 $
 *
 *  last change: $Author: obo $ $Date: 2003-09-04 10:52:45 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library 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 for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (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.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/
#ifndef ASSIGN_HXX
#define ASSIGN_HXX

#include "prim.hxx"
#include "destr.hxx"
#include "constr.hxx"
#include "copy.hxx"


namespace cppu
{

//##################################################################################################
//#### assignment ##################################################################################
//##################################################################################################


//--------------------------------------------------------------------------------------------------
inline void _assignInterface(
    void ** ppDest, void * pSource,
    uno_AcquireFunc acquire, uno_ReleaseFunc release )
    SAL_THROW( () )
{
    void * pDest = *ppDest;
    _acquire( pSource, acquire );
    _release( *ppDest, release );
    *ppDest = pSource;
}
//--------------------------------------------------------------------------------------------------
inline sal_Bool _queryAndAssignInterface(
    void ** ppDest, void * pSource,
    typelib_TypeDescriptionReference * pDestType,
    uno_QueryInterfaceFunc queryInterface, uno_ReleaseFunc release )
    SAL_THROW( () )
{
    if (pSource)
    {
        if (0 == queryInterface)
            queryInterface = binuno_queryInterface;
        pSource = (*queryInterface)( pSource, pDestType );
    }
    _release( *ppDest, release );
    *ppDest = pSource;
    return (pSource != 0);
}
//==================================================================================================
sal_Bool assignStruct(
    void * pDest, void * pSource,
    typelib_CompoundTypeDescription * pTypeDescr,
    uno_QueryInterfaceFunc queryInterface, uno_AcquireFunc acquire, uno_ReleaseFunc release )
    SAL_THROW( () );
//--------------------------------------------------------------------------------------------------
inline sal_Bool _assignStruct(
    void * pDest, void * pSource,
    typelib_CompoundTypeDescription * pTypeDescr,
    uno_QueryInterfaceFunc queryInterface, uno_AcquireFunc acquire, uno_ReleaseFunc release )
    SAL_THROW( () )
{
    if (pTypeDescr->pBaseTypeDescription)
    {
        // copy base value
        if (! assignStruct( pDest, pSource, pTypeDescr->pBaseTypeDescription,
                            queryInterface, acquire, release ))
        {
            return sal_False;
        }
    }
    // then copy members
    typelib_TypeDescriptionReference ** ppTypeRefs = pTypeDescr->ppTypeRefs;
    sal_Int32 * pMemberOffsets = pTypeDescr->pMemberOffsets;
    sal_Int32 nDescr = pTypeDescr->nMembers;
    while (nDescr--)
    {
        if (! ::uno_type_assignData( (char *)pDest + pMemberOffsets[nDescr],
                                     ppTypeRefs[nDescr],
                                     (char *)pSource + pMemberOffsets[nDescr],
                                     ppTypeRefs[nDescr],
                                     queryInterface, acquire, release ))
        {
            return sal_False;
        }
    }
    return sal_True;
}
//--------------------------------------------------------------------------------------------------
inline sal_Bool _assignArray(
    void * pDest, void * pSource,
    typelib_ArrayTypeDescription * pTypeDescr,
    uno_QueryInterfaceFunc queryInterface, uno_AcquireFunc acquire, uno_ReleaseFunc release )
{
    typelib_TypeDescriptionReference * pElementTypeRef =
        ((typelib_IndirectTypeDescription *)pTypeDescr)->pType;
    typelib_TypeDescription * pElementTypeDescr = NULL;
    TYPELIB_DANGER_GET( &pElementTypeDescr, pElementTypeRef );
    sal_Int32 nTotalElements = pTypeDescr->nTotalElements;
    sal_Int32 nElementSize = pElementTypeDescr->nSize;
    sal_Int32 i;
    sal_Bool bRet = sal_False;

    switch ( pElementTypeRef->eTypeClass )
    {
    case typelib_TypeClass_CHAR:
    case typelib_TypeClass_BOOLEAN:
    case typelib_TypeClass_BYTE:
    case typelib_TypeClass_SHORT:
    case typelib_TypeClass_UNSIGNED_SHORT:
    case typelib_TypeClass_LONG:
    case typelib_TypeClass_UNSIGNED_LONG:
    case typelib_TypeClass_HYPER:
    case typelib_TypeClass_UNSIGNED_HYPER:
    case typelib_TypeClass_FLOAT:
    case typelib_TypeClass_DOUBLE:
        for (i=0; i < nTotalElements; i++)
        {
            ::rtl_copyMemory((sal_Char *)pDest + i * nElementSize,
                             (sal_Char *)pSource + i * nElementSize,
                             nElementSize);
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_STRING:
        for (i=0; i < nTotalElements; i++)
        {
            ::rtl_uString_assign( (rtl_uString **)pDest + i,
                                  ((rtl_uString **)pSource)[i] );
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_TYPE:
        for (i=0; i < nTotalElements; i++)
        {
            typelib_TypeDescriptionReference ** pp = (typelib_TypeDescriptionReference **)pDest + i;
            ::typelib_typedescriptionreference_release( *pp );
            *pp = *((typelib_TypeDescriptionReference **)pSource + i);
            TYPE_ACQUIRE( *pp );
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_ANY:
        for (i=0; i < nTotalElements; i++)
        {
            _destructAny( (uno_Any *)pDest + i, release );
            _copyConstructAny( (uno_Any *)pDest + i, (uno_Any *)pSource + i,
                               pElementTypeRef, pElementTypeDescr, acquire, 0 );
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_ENUM:
        for (i=0; i < nTotalElements; i++)
        {
            *((sal_Int32 *)pDest + i) = *((sal_Int32 *)pSource + i);
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_TYPEDEF:
        OSL_ENSURE( 0, "### unexpected typedef!" );
        break;
    case typelib_TypeClass_STRUCT:
    case typelib_TypeClass_EXCEPTION:
        for (i=0; i < nTotalElements; i++)
        {
            bRet = _assignStruct( (sal_Char *)pDest + i * nElementSize,
                                  (sal_Char *)pSource + i * nElementSize,
                                  (typelib_CompoundTypeDescription *)pElementTypeDescr,
                                  queryInterface, acquire, release );
            if (! bRet)
                break;
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_UNION:
        for (i=0; i < nTotalElements; i++)
        {
            _destructUnion( (sal_Char*)pDest + i * nElementSize, pElementTypeDescr, release );
            _copyConstructUnion( (sal_Char*)pDest + i * nElementSize,
                                 (sal_Char*)pSource + i * nElementSize,
                                 pElementTypeDescr, acquire, 0 );
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_SEQUENCE:
        for (i=0; i < nTotalElements; i++)
        {
            ::osl_incrementInterlockedCount(
                &(*((uno_Sequence **)pSource + i))->nRefCount );
            idestructSequence(
                *((uno_Sequence **)pDest + i),
                pElementTypeRef, pElementTypeDescr, release );
            *((uno_Sequence **)pDest + i) = *((uno_Sequence **)pSource + i);
        }
        bRet = sal_True;
        break;
    case typelib_TypeClass_INTERFACE:
        for (i=0; i < nTotalElements; i++)
        {
            _assignInterface(
                (void **)((sal_Char*)pDest + i * nElementSize),
                *(void **)((sal_Char*)pSource + i * nElementSize),
                acquire, release );
        }
        bRet = sal_True;
        break;
    }

    TYPELIB_DANGER_RELEASE( pElementTypeDescr );
    return bRet;
}
//--------------------------------------------------------------------------------------------------
inline sal_Bool _assignData(
    void * pDest,
    typelib_TypeDescriptionReference * pDestType, typelib_TypeDescription * pDestTypeDescr,
    void * pSource,
    typelib_TypeDescriptionReference * pSourceType, typelib_TypeDescription * pSourceTypeDescr,
    uno_QueryInterfaceFunc queryInterface, uno_AcquireFunc acquire, uno_ReleaseFunc release )
    SAL_THROW( () )
{
    if (pDest == pSource)
        return sal_True;

    if (! pSource)
    {
        _destructData( pDest, pDestType, pDestTypeDescr, release );
        _defaultConstructData( pDest, pDestType, pDestTypeDescr );
        return sal_True;
    }
    while (typelib_TypeClass_ANY == pSourceType->eTypeClass)
    {
        pSourceTypeDescr = 0;
        pSourceType = ((uno_Any *)pSource)->pType;
        pSource = ((uno_Any *)pSource)->pData;
        if (pDest == pSource)
            return sal_True;
    }

    switch (pDestType->eTypeClass)
    {
    case typelib_TypeClass_VOID:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_VOID:
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_CHAR:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_CHAR:
            *(sal_Unicode *)pDest = *(sal_Unicode *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_BOOLEAN:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BOOLEAN:
            *(sal_Bool *)pDest = (*(sal_Bool *)pSource != sal_False);
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_BYTE:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_Int8 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_SHORT:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_Int16 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(sal_Int16 *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_UNSIGNED_SHORT:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_uInt16 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(sal_uInt16 *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_LONG:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_Int32 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
            *(sal_Int32 *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(sal_Int32 *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        case typelib_TypeClass_LONG:
        case typelib_TypeClass_UNSIGNED_LONG:
            *(sal_Int32 *)pDest = *(sal_Int32 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_UNSIGNED_LONG:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_uInt32 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
            *(sal_uInt32 *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(sal_uInt32 *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        case typelib_TypeClass_LONG:
        case typelib_TypeClass_UNSIGNED_LONG:
            *(sal_uInt32 *)pDest = *(sal_uInt32 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_HYPER:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_Int64 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
            *(sal_Int64 *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(sal_Int64 *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        case typelib_TypeClass_LONG:
            *(sal_Int64 *)pDest = *(sal_Int32 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_LONG:
            *(sal_Int64 *)pDest = *(sal_uInt32 *)pSource;
            return sal_True;
        case typelib_TypeClass_HYPER:
        case typelib_TypeClass_UNSIGNED_HYPER:
            *(sal_Int64 *)pDest = *(sal_Int64 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_UNSIGNED_HYPER:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(sal_uInt64 *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
            *(sal_uInt64 *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(sal_uInt64 *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        case typelib_TypeClass_LONG:
            *(sal_uInt64 *)pDest = *(sal_Int32 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_LONG:
            *(sal_uInt64 *)pDest = *(sal_uInt32 *)pSource;
            return sal_True;
        case typelib_TypeClass_HYPER:
        case typelib_TypeClass_UNSIGNED_HYPER:
            *(sal_uInt64 *)pDest = *(sal_uInt64 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_FLOAT:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(float *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
            *(float *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(float *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        case typelib_TypeClass_FLOAT:
            *(float *)pDest = *(float *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_DOUBLE:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_BYTE:
            *(double *)pDest = *(sal_Int8 *)pSource;
            return sal_True;
        case typelib_TypeClass_SHORT:
            *(double *)pDest = *(sal_Int16 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_SHORT:
            *(double *)pDest = *(sal_uInt16 *)pSource;
            return sal_True;
        case typelib_TypeClass_LONG:
            *(double *)pDest = *(sal_Int32 *)pSource;
            return sal_True;
        case typelib_TypeClass_UNSIGNED_LONG:
            *(double *)pDest = *(sal_uInt32 *)pSource;
            return sal_True;
        case typelib_TypeClass_FLOAT:
            *(double *)pDest = *(float *)pSource;
            return sal_True;
        case typelib_TypeClass_DOUBLE:
            *(double *)pDest = *(double *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_STRING:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_STRING:
            ::rtl_uString_assign( (rtl_uString **)pDest, *(rtl_uString **)pSource );
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_TYPE:
        switch (pSourceType->eTypeClass)
        {
        case typelib_TypeClass_TYPE:
        {
            typelib_TypeDescriptionReference ** pp = (typelib_TypeDescriptionReference **)pDest;
            ::typelib_typedescriptionreference_release( *pp );
            *pp = *(typelib_TypeDescriptionReference **)pSource;
            TYPE_ACQUIRE( *pp );
            return sal_True;
        }
        }
        return sal_False;
    case typelib_TypeClass_ANY:
        _destructAny( (uno_Any *)pDest, release );
        _copyConstructAny( (uno_Any *)pDest, pSource, pSourceType, pSourceTypeDescr, acquire, 0 );
        return sal_True;
    case typelib_TypeClass_ENUM:
        if (_type_equals( pDestType, pSourceType ))
        {
            *(sal_Int32 *)pDest = *(sal_Int32 *)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_TYPEDEF:
        OSL_ENSURE( 0, "### unexpected typedef!" );
        return sal_False;
    case typelib_TypeClass_STRUCT:
    case typelib_TypeClass_EXCEPTION:
        if (typelib_TypeClass_STRUCT == pSourceType->eTypeClass ||
            typelib_TypeClass_EXCEPTION == pSourceType->eTypeClass)
        {
            sal_Bool bRet = sal_False;
            if (pSourceTypeDescr)
            {
                typelib_CompoundTypeDescription * pTypeDescr =
                    (typelib_CompoundTypeDescription *)pSourceTypeDescr;
                while (pTypeDescr &&
                       !_type_equals(
                           ((typelib_TypeDescription *)pTypeDescr)->pWeakRef, pDestType ))
                {
                    pTypeDescr = pTypeDescr->pBaseTypeDescription;
                }
                if (pTypeDescr)
                {
                    bRet = _assignStruct(
                        pDest, pSource, pTypeDescr, queryInterface, acquire, release );
                }
            }
            else
            {
                TYPELIB_DANGER_GET( &pSourceTypeDescr, pSourceType );
                typelib_CompoundTypeDescription * pTypeDescr =
                    (typelib_CompoundTypeDescription *)pSourceTypeDescr;
                while (pTypeDescr &&
                       !_type_equals(
                           ((typelib_TypeDescription *)pTypeDescr)->pWeakRef, pDestType ))
                {
                    pTypeDescr = pTypeDescr->pBaseTypeDescription;
                }
                if (pTypeDescr)
                {
                    bRet = _assignStruct(
                        pDest, pSource, pTypeDescr, queryInterface, acquire, release );
                }
                TYPELIB_DANGER_RELEASE( pSourceTypeDescr );
            }
            return bRet;
        }
        return sal_False;
    case typelib_TypeClass_ARRAY:
        {
            sal_Bool bRet = sal_False;
            if (pSourceTypeDescr)
            {
                typelib_ArrayTypeDescription * pTypeDescr =
                    (typelib_ArrayTypeDescription *)pSourceTypeDescr;
                bRet = _assignArray( pDest, pSource, pTypeDescr, queryInterface, acquire, release );
            }
            else
            {
                TYPELIB_DANGER_GET( &pSourceTypeDescr, pSourceType );
                typelib_ArrayTypeDescription * pTypeDescr =
                    (typelib_ArrayTypeDescription *)pSourceTypeDescr;
                if ( pTypeDescr )
                {
                    bRet = _assignArray(
                        pDest, pSource, pTypeDescr, queryInterface, acquire, release );
                }
                TYPELIB_DANGER_RELEASE( pSourceTypeDescr );
            }
            return bRet;
        }
        return sal_False;
    case typelib_TypeClass_UNION:
        if (_type_equals( pDestType, pSourceType ))
        {
            if (pDestTypeDescr)
            {
                _destructUnion( pDest, pDestTypeDescr, release );
                _copyConstructUnion( pDest, pSource, pDestTypeDescr, acquire, 0 );
            }
            else
            {
                TYPELIB_DANGER_GET( &pDestTypeDescr, pDestType );
                _destructUnion( pDest, pDestTypeDescr, release );
                _copyConstructUnion( pDest, pSource, pDestTypeDescr, acquire, 0 );
                TYPELIB_DANGER_RELEASE( pDestTypeDescr );
            }
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_SEQUENCE:
        if (typelib_TypeClass_SEQUENCE != pSourceType->eTypeClass)
            return sal_False;
        // self assignment:
        if (*(uno_Sequence **)pSource == *(uno_Sequence **)pDest)
            return sal_True;
        if (_type_equals( pDestType, pSourceType ))
        {
            ::osl_incrementInterlockedCount(
                &(*(uno_Sequence **)pSource)->nRefCount );
            idestructSequence(
                *(uno_Sequence **)pDest, pDestType, pDestTypeDescr, release );
            *(uno_Sequence **)pDest = *(uno_Sequence **)pSource;
            return sal_True;
        }
        return sal_False;
    case typelib_TypeClass_INTERFACE:
        if (typelib_TypeClass_INTERFACE != pSourceType->eTypeClass)
            return sal_False;
        if (_type_equals( pDestType, pSourceType ))
        {
            _assignInterface( (void **)pDest, *(void **)pSource, acquire, release );
            return sal_True;
        }
        else
        {
            sal_Bool bRet;
            if (pSourceTypeDescr)
            {
                typelib_TypeDescription * pTD = pSourceTypeDescr;
                while (pTD && !_type_equals( pTD->pWeakRef, pDestType ))
                {
                    pTD = (typelib_TypeDescription *)
                        ((typelib_InterfaceTypeDescription *)pTD)->pBaseTypeDescription;
                }
                if (pTD) // is base of dest
                {
                    _assignInterface( (void **)pDest, *(void **)pSource, acquire, release );
                    bRet = sal_True;
                }
                else
                {
                    // query for interface
                    bRet = _queryAndAssignInterface(
                        (void **)pDest, *(void **)pSource, pDestType, queryInterface, release );
                }
            }
            else
            {
                if (_type_equals( pSourceType, pDestType ))
                {
                    _assignInterface( (void **)pDest, *(void **)pSource, acquire, release );
                    bRet = sal_True;
                }
                else
                {
                    // query for interface
                    bRet = _queryAndAssignInterface(
                        (void **)pDest, *(void **)pSource, pDestType, queryInterface, release );
                }
            }
            return bRet;
        }
    }
    return sal_False;
}

}

#endif