/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
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* 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 .
*/
#ifndef INCLUDED_COMPHELPER_UNWRAPARGS_HXX
#define INCLUDED_COMPHELPER_UNWRAPARGS_HXX
#include <sal/config.h>
#include <optional>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/uno/XInterface.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <cppu/unotype.hxx>
namespace comphelper {
/// @internal
namespace detail {
inline void unwrapArgsError(
const OUString& str, sal_Int32 nArg,
const css::uno::Reference< css::uno::XInterface >& xErrorContext =
css::uno::Reference< css::uno::XInterface >() )
{
throw css::lang::IllegalArgumentException(
str, xErrorContext, static_cast < sal_Int16 >( nArg ) );
}
template < typename T, typename ... Args >
inline void unwrapArgsError( const OUString& str, sal_Int32 nArg, T&, Args&... args )
{
return unwrapArgsError( str, nArg, args... );
}
inline void unwrapArgs(
const css::uno::Sequence< css::uno::Any >&,
sal_Int32,
const css::uno::Reference< css::uno::XInterface >& )
{
return ;
}
inline void unwrapArgs(
const css::uno::Sequence< css::uno::Any >&,
sal_Int32 )
{
return ;
}
template < typename T, typename ... Args >
inline void unwrapArgs(
const css::uno::Sequence< css::uno::Any >& seq,
sal_Int32 nArg, ::std::optional< T >& v, Args&... args );
template < typename T, typename ... Args >
inline void unwrapArgs(
const css::uno::Sequence< css::uno::Any >& seq,
sal_Int32 nArg, T& v, Args&... args )
{
if ( seq.getLength() <= nArg )
{
return unwrapArgsError( u"No such argument available!" _ustr,
nArg, args... );
}
if ( !fromAny( seq[nArg], &v ) )
{
OUString msg =
"Cannot extract ANY { " +
seq[nArg].getValueTypeName() +
" } to " +
::cppu::UnoType<T>::get().getTypeName() +
"!" ;
return unwrapArgsError( msg, nArg, args... );
}
return unwrapArgs( seq, ++nArg, args... );
}
template < typename T, typename ... Args >
inline void unwrapArgs(
const css::uno::Sequence< css::uno::Any >& seq,
sal_Int32 nArg, ::std::optional< T >& v, Args&... args )
{
if ( nArg < seq.getLength() )
{
T t;
unwrapArgs( seq, nArg, t, args... );
v = t;
} else {
unwrapArgs( seq, ++nArg, args... );
}
}
}
template < typename ... Args >
inline void unwrapArgs(
const css::uno::Sequence< css::uno::Any >& seq,
Args&... args )
{
return detail::unwrapArgs( seq, 0 , args... );
}
} // namespace comphelper
#endif // ! defined( INCLUDED_COMPHELPER_UNWRAPARGS_HXX)
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