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/* -*- 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 .
*/
#include <comphelper/anytohash.hxx>
#include <o3tl/hash_combine.hxx>
#include <typelib/typedescription.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include "typedescriptionref.hxx"
using namespace ::com::sun::star;
using ::com::sun::star::uno::TypeDescription;
using ::comphelper::detail::TypeDescriptionRef;
namespace comphelper {
namespace {
std::optional<size_t> hashValue( size_t hash,
void const * val, typelib_TypeDescriptionReference * typeRef )
{
o3tl::hash_combine( hash, typeRef->eTypeClass );
if (typeRef->eTypeClass == typelib_TypeClass_VOID) {
return hash;
}
assert(val != nullptr);
switch (typeRef->eTypeClass) {
case typelib_TypeClass_INTERFACE: {
return std::nullopt; // not implemented
}
case typelib_TypeClass_STRUCT:
case typelib_TypeClass_EXCEPTION: {
TypeDescription typeDescr( typeRef );
if (!typeDescr.is())
typeDescr.makeComplete();
if (!typeDescr.is())
return std::nullopt;
typelib_CompoundTypeDescription * compType =
reinterpret_cast< typelib_CompoundTypeDescription * >(
typeDescr.get() );
sal_Int32 nDescr = compType->nMembers;
if (compType->pBaseTypeDescription) {
std::optional<size_t> tmpHash = hashValue(
hash, val, reinterpret_cast<
typelib_TypeDescription * >(
compType->pBaseTypeDescription)->pWeakRef);
if(!tmpHash.has_value())
return std::nullopt;
hash = *tmpHash;
}
typelib_TypeDescriptionReference ** ppTypeRefs =
compType->ppTypeRefs;
sal_Int32 * memberOffsets = compType->pMemberOffsets;
for ( sal_Int32 nPos = 0; nPos < nDescr; ++nPos )
{
TypeDescriptionRef memberType( ppTypeRefs[ nPos ] );
if (!memberType.is())
return std::nullopt;
std::optional<size_t> tmpHash = hashValue( hash,
static_cast< char const * >(
val ) + memberOffsets[ nPos ],
memberType->pWeakRef );
if(!tmpHash.has_value())
return std::nullopt;
hash = *tmpHash;
}
break;
}
case typelib_TypeClass_SEQUENCE: {
TypeDescriptionRef typeDescr( typeRef );
if (!typeDescr.is())
return std::nullopt;
typelib_TypeDescriptionReference * elementTypeRef =
reinterpret_cast<
typelib_IndirectTypeDescription * >(typeDescr.get())->pType;
TypeDescriptionRef elementTypeDescr( elementTypeRef );
if (!elementTypeDescr.is())
return std::nullopt;
sal_Int32 nElementSize = elementTypeDescr->nSize;
uno_Sequence * seq =
*static_cast< uno_Sequence * const * >(val);
sal_Int32 nElements = seq->nElements;
if (nElements > 0)
{
char const * pElements = seq->elements;
for ( sal_Int32 nPos = 0; nPos < nElements; ++nPos )
{
std::optional<size_t> tmpHash = hashValue( hash,
pElements + (nElementSize * nPos),
elementTypeDescr->pWeakRef );
if(!tmpHash.has_value())
return std::nullopt;
hash = *tmpHash;
}
}
break;
}
case typelib_TypeClass_ANY: {
uno_Any const * pAny = static_cast< uno_Any const * >(val);
return hashValue( hash, pAny->pData, pAny->pType );
}
case typelib_TypeClass_TYPE: {
OUString const & str = OUString::unacquired(
&(*static_cast<
typelib_TypeDescriptionReference * const * >(val)
)->pTypeName );
o3tl::hash_combine( hash, str.hashCode() );
break;
}
case typelib_TypeClass_STRING: {
OUString const & str = OUString::unacquired(
static_cast< rtl_uString * const * >(val) );
o3tl::hash_combine( hash, str.hashCode() );
break;
}
case typelib_TypeClass_ENUM: {
TypeDescription typeDescr( typeRef );
if (!typeDescr.is())
typeDescr.makeComplete();
if (!typeDescr.is())
return std::nullopt;
o3tl::hash_combine( hash, *static_cast< int const * >(val));
break;
}
case typelib_TypeClass_BOOLEAN:
if (*static_cast< sal_Bool const * >(val))
o3tl::hash_combine( hash, true );
else
o3tl::hash_combine( hash, false );
break;
case typelib_TypeClass_CHAR: {
o3tl::hash_combine( hash, *static_cast< sal_Unicode const * >(val));
break;
}
case typelib_TypeClass_FLOAT:
o3tl::hash_combine( hash, *static_cast< float const * >(val) );
break;
case typelib_TypeClass_DOUBLE:
o3tl::hash_combine( hash, *static_cast< double const * >(val) );
break;
case typelib_TypeClass_BYTE:
o3tl::hash_combine( hash, *static_cast< sal_Int8 const * >(val) );
break;
case typelib_TypeClass_SHORT:
o3tl::hash_combine( hash, *static_cast< sal_Int16 const * >(val) );
break;
case typelib_TypeClass_UNSIGNED_SHORT:
o3tl::hash_combine( hash, *static_cast< sal_uInt16 const * >(val) );
break;
case typelib_TypeClass_LONG:
o3tl::hash_combine( hash, *static_cast< sal_Int32 const * >(val) );
break;
case typelib_TypeClass_UNSIGNED_LONG:
o3tl::hash_combine( hash, *static_cast< sal_uInt32 const * >(val) );
break;
case typelib_TypeClass_HYPER:
o3tl::hash_combine( hash, *static_cast< sal_Int64 const * >(val) );
break;
case typelib_TypeClass_UNSIGNED_HYPER:
o3tl::hash_combine( hash, *static_cast< sal_uInt64 const * >(val) );
break;
// case typelib_TypeClass_UNKNOWN:
// case typelib_TypeClass_SERVICE:
// case typelib_TypeClass_MODULE:
default:
return std::nullopt;
}
return hash;
}
} // anon namespace
std::optional<size_t> anyToHash( uno::Any const & value )
{
size_t hash = 0;
return hashValue( hash, value.getValue(), value.getValueTypeRef());
}
} // namespace comphelper
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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