diff options
Diffstat (limited to 'cppu/source/uno/assign.hxx')
| -rw-r--r-- | cppu/source/uno/assign.hxx | 449 |
1 files changed, 449 insertions, 0 deletions
diff --git a/cppu/source/uno/assign.hxx b/cppu/source/uno/assign.hxx new file mode 100644 index 000000000..3e2893fde --- /dev/null +++ b/cppu/source/uno/assign.hxx @@ -0,0 +1,449 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ +#pragma once + +#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 ) + +{ + _acquire( pSource, acquire ); + void * const pToBeReleased = *ppDest; + *ppDest = pSource; + _release( pToBeReleased, release ); +} + +inline void * _queryInterface( + void * pSource, + typelib_TypeDescriptionReference * pDestType, + uno_QueryInterfaceFunc queryInterface ) +{ + if (pSource) + { + if (nullptr == queryInterface) + queryInterface = binuno_queryInterface; + pSource = (*queryInterface)( pSource, pDestType ); + } + return pSource; +} + +bool assignStruct( + void * pDest, void * pSource, + typelib_CompoundTypeDescription * pTypeDescr, + uno_QueryInterfaceFunc queryInterface, uno_AcquireFunc acquire, uno_ReleaseFunc release ); + +inline bool _assignStruct( + void * pDest, void * pSource, + typelib_CompoundTypeDescription * pTypeDescr, + uno_QueryInterfaceFunc queryInterface, uno_AcquireFunc acquire, uno_ReleaseFunc release ) +{ + if (pTypeDescr->pBaseTypeDescription) + { + // copy base value + if (! assignStruct( pDest, pSource, pTypeDescr->pBaseTypeDescription, + queryInterface, acquire, release )) + { + return 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( static_cast<char *>(pDest) + pMemberOffsets[nDescr], + ppTypeRefs[nDescr], + static_cast<char *>(pSource) + pMemberOffsets[nDescr], + ppTypeRefs[nDescr], + queryInterface, acquire, release )) + { + return false; + } + } + return true; +} + +inline 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 ) +{ + if (pDest == pSource) + return _type_equals( pDestType, pSourceType ); + + if (! pSource) + { + _destructData( pDest, pDestType, pDestTypeDescr, release ); + _defaultConstructData( pDest, pDestType, pDestTypeDescr ); + return true; + } + while (typelib_TypeClass_ANY == pSourceType->eTypeClass) + { + pSourceTypeDescr = nullptr; + pSourceType = static_cast<uno_Any *>(pSource)->pType; + pSource = static_cast<uno_Any *>(pSource)->pData; + if (pDest == pSource) + return true; + } + + switch (pDestType->eTypeClass) + { + case typelib_TypeClass_VOID: + return pSourceType->eTypeClass == typelib_TypeClass_VOID; + case typelib_TypeClass_CHAR: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_CHAR: + *static_cast<sal_Unicode *>(pDest) = *static_cast<sal_Unicode *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_BOOLEAN: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BOOLEAN: + *static_cast<sal_Bool *>(pDest) = bool(*static_cast<sal_Bool *>(pSource)); + return true; + default: + return false; + } + case typelib_TypeClass_BYTE: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_Int8 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_SHORT: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_Int16 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_Int16 *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_UNSIGNED_SHORT: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_uInt16 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_uInt16 *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_LONG: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_Int32 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + *static_cast<sal_Int32 *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_Int32 *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + *static_cast<sal_Int32 *>(pDest) = *static_cast<sal_Int32 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_UNSIGNED_LONG: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_uInt32 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + *static_cast<sal_uInt32 *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_uInt32 *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + *static_cast<sal_uInt32 *>(pDest) = *static_cast<sal_uInt32 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_HYPER: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_Int64 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + *static_cast<sal_Int64 *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_Int64 *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + case typelib_TypeClass_LONG: + *static_cast<sal_Int64 *>(pDest) = *static_cast<sal_Int32 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_LONG: + *static_cast<sal_Int64 *>(pDest) = *static_cast<sal_uInt32 *>(pSource); + return true; + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + *static_cast<sal_Int64 *>(pDest) = *static_cast<sal_Int64 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_UNSIGNED_HYPER: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<sal_uInt64 *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + *static_cast<sal_uInt64 *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_uInt64 *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + case typelib_TypeClass_LONG: + *static_cast<sal_uInt64 *>(pDest) = *static_cast<sal_Int32 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_LONG: + *static_cast<sal_uInt64 *>(pDest) = *static_cast<sal_uInt32 *>(pSource); + return true; + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + *static_cast<sal_uInt64 *>(pDest) = *static_cast<sal_uInt64 *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_FLOAT: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<float *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + *static_cast<float *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<float *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + case typelib_TypeClass_FLOAT: + *static_cast<float *>(pDest) = *static_cast<float *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_DOUBLE: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_BYTE: + *static_cast<double *>(pDest) = *static_cast<sal_Int8 *>(pSource); + return true; + case typelib_TypeClass_SHORT: + *static_cast<double *>(pDest) = *static_cast<sal_Int16 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<double *>(pDest) = *static_cast<sal_uInt16 *>(pSource); + return true; + case typelib_TypeClass_LONG: + *static_cast<double *>(pDest) = *static_cast<sal_Int32 *>(pSource); + return true; + case typelib_TypeClass_UNSIGNED_LONG: + *static_cast<double *>(pDest) = *static_cast<sal_uInt32 *>(pSource); + return true; + case typelib_TypeClass_FLOAT: + *static_cast<double *>(pDest) = *static_cast<float *>(pSource); + return true; + case typelib_TypeClass_DOUBLE: + *static_cast<double *>(pDest) = *static_cast<double *>(pSource); + return true; + default: + return false; + } + case typelib_TypeClass_STRING: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_STRING: + ::rtl_uString_assign( static_cast<rtl_uString **>(pDest), *static_cast<rtl_uString **>(pSource) ); + return true; + default: + return false; + } + case typelib_TypeClass_TYPE: + switch (pSourceType->eTypeClass) + { + case typelib_TypeClass_TYPE: + { + typelib_TypeDescriptionReference ** pp = static_cast<typelib_TypeDescriptionReference **>(pDest); + ::typelib_typedescriptionreference_release( *pp ); + *pp = *static_cast<typelib_TypeDescriptionReference **>(pSource); + TYPE_ACQUIRE( *pp ); + return true; + } + default: + return false; + } + case typelib_TypeClass_ANY: + _destructAny( static_cast<uno_Any *>(pDest), release ); + _copyConstructAny( static_cast<uno_Any *>(pDest), pSource, pSourceType, pSourceTypeDescr, acquire, nullptr ); + return true; + case typelib_TypeClass_ENUM: + if (_type_equals( pDestType, pSourceType )) + { + *static_cast<sal_Int32 *>(pDest) = *static_cast<sal_Int32 *>(pSource); + return true; + } + return false; + case typelib_TypeClass_STRUCT: + case typelib_TypeClass_EXCEPTION: + if (typelib_TypeClass_STRUCT == pSourceType->eTypeClass || + typelib_TypeClass_EXCEPTION == pSourceType->eTypeClass) + { + bool bRet = false; + if (pSourceTypeDescr) + { + typelib_CompoundTypeDescription * pTypeDescr = + reinterpret_cast<typelib_CompoundTypeDescription *>(pSourceTypeDescr); + while (pTypeDescr && + !_type_equals(pTypeDescr->aBase.pWeakRef, pDestType)) + { + pTypeDescr = pTypeDescr->pBaseTypeDescription; + } + if (pTypeDescr) + { + bRet = _assignStruct( + pDest, pSource, pTypeDescr, queryInterface, acquire, release ); + } + } + else + { + TYPELIB_DANGER_GET( &pSourceTypeDescr, pSourceType ); + typelib_CompoundTypeDescription * pTypeDescr = + reinterpret_cast<typelib_CompoundTypeDescription *>(pSourceTypeDescr); + while (pTypeDescr && + !_type_equals(pTypeDescr->aBase.pWeakRef, pDestType)) + { + pTypeDescr = pTypeDescr->pBaseTypeDescription; + } + if (pTypeDescr) + { + bRet = _assignStruct( + pDest, pSource, pTypeDescr, queryInterface, acquire, release ); + } + TYPELIB_DANGER_RELEASE( pSourceTypeDescr ); + } + return bRet; + } + return false; + case typelib_TypeClass_SEQUENCE: + if (!_type_equals( pDestType, pSourceType )) + return false; + // check self assignment (only after _type_equals, to account for shared static empty): + if (*static_cast<uno_Sequence **>(pSource) != *static_cast<uno_Sequence **>(pDest)) + { + osl_atomic_increment( &(*static_cast<uno_Sequence **>(pSource))->nRefCount ); + idestructSequence( + *static_cast<uno_Sequence **>(pDest), pDestType, pDestTypeDescr, release ); + *static_cast<uno_Sequence **>(pDest) = *static_cast<uno_Sequence **>(pSource); + } + return true; + case typelib_TypeClass_INTERFACE: + if (typelib_TypeClass_INTERFACE != pSourceType->eTypeClass) + return false; + if (_type_equals( pDestType, pSourceType )) + { + _assignInterface( static_cast<void **>(pDest), *static_cast<void **>(pSource), acquire, release ); + return true; + } + else if (*static_cast< void ** >(pSource) == nullptr) + { + // A null reference of any interface type can be converted to a null + // reference of any other interface type: + void * const pToBeReleased = *static_cast< void ** >(pDest); + *static_cast< void ** >(pDest) = nullptr; + _release( pToBeReleased, release ); + return true; + } + else + { + if (pSourceTypeDescr) + { + typelib_TypeDescription * pTD = pSourceTypeDescr; + while (pTD && !_type_equals( pTD->pWeakRef, pDestType )) + { + pTD = &reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD)->pBaseTypeDescription->aBase; + } + if (pTD) // is base of dest + { + _assignInterface( static_cast<void **>(pDest), *static_cast<void **>(pSource), acquire, release ); + return true; + } + } + + // query for interface: + void * pQueried = _queryInterface( *static_cast<void **>(pSource), + pDestType, queryInterface ); + if (pQueried != nullptr) { + void * const pToBeReleased = *static_cast<void **>(pDest); + *static_cast<void **>(pDest) = pQueried; + _release( pToBeReleased, release ); + } + return (pQueried != nullptr); + } + default: + OSL_ASSERT(false); + return false; + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |