Any.h

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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 .
 */
 
/*
 * This file is part of LibreOffice published API.
 */
#ifndef INCLUDED_COM_SUN_STAR_UNO_ANY_H
#define INCLUDED_COM_SUN_STAR_UNO_ANY_H
 
#include "sal/config.h"
 
#include <cstddef>
 
#include "rtl/ustring.hxx"
#include "uno/any2.h"
#include "typelib/typedescription.h"
#include "cppu/unotype.hxx"
#include "com/sun/star/uno/TypeClass.hdl"
#include "rtl/alloc.h"
 
#if defined LIBO_INTERNAL_ONLY && !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED)
#include <type_traits>
#endif
 
namespace com
{
namespace sun
{
namespace star
{
namespace uno
{
 
class Type;
template<class interface_type> class Reference;

class SAL_WARN_UNUSED SAL_DLLPUBLIC_RTTI Any : public uno_Any
{
public:
    // these are here to force memory de/allocation to sal lib.
    static void * SAL_CALL operator new ( size_t nSize )
        { return ::rtl_allocateMemory( nSize ); }
    static void SAL_CALL operator delete ( void * pMem )
        { ::rtl_freeMemory( pMem ); }
    static void * SAL_CALL operator new ( size_t, void * pMem )
        { return pMem; }
    static void SAL_CALL operator delete ( void *, void * )
        {}

    inline Any();

    template <typename T>
#if defined LIBO_INTERNAL_ONLY && !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED)
        // Disallow things like
        // Reference<XInterface> x(...);
        // Any a(*x);
        requires (!std::is_base_of_v<XInterface, T>)
#endif
    explicit inline Any( T const & value );
    explicit inline Any( bool value );
 
#if defined LIBO_INTERNAL_ONLY
    template<typename T1, typename T2>
    explicit inline Any(rtl::OUStringConcat<T1, T2> && value);
    template<typename T1, typename T2>
    explicit Any(rtl::OUStringConcat<T1, T2> const &) = delete;
    template<std::size_t nBufSize> explicit inline Any(rtl::StringNumber<sal_Unicode, nBufSize> && value);
    template<std::size_t nBufSize> explicit Any(rtl::StringNumber<sal_Unicode, nBufSize> const &) = delete;
    template <std::size_t N> explicit inline Any(const rtl::OUStringLiteral<N>& value);
#endif

    inline Any( const Any & rAny );

    inline Any( const void * pData_, const Type & rType );

    inline Any( const void * pData_, typelib_TypeDescription * pTypeDescr );

    inline Any( const void * pData_, typelib_TypeDescriptionReference * pType_ );
 
#if defined LIBO_INTERNAL_ONLY
    Any(bool const *, Type const &) = delete;
    Any(bool const *, typelib_TypeDescription *) = delete;
    Any(bool const *, typelib_TypeDescriptionReference *) = delete;
    Any(sal_Bool const *, Type const &) = delete;
    Any(sal_Bool const *, typelib_TypeDescription *) = delete;
    Any(sal_Bool const *, typelib_TypeDescriptionReference *) = delete;
    Any(std::nullptr_t, Type const & type):
        Any(static_cast<void *>(nullptr), type) {}
    Any(std::nullptr_t, typelib_TypeDescription * type):
        Any(static_cast<void *>(nullptr), type) {}
    Any(std::nullptr_t, typelib_TypeDescriptionReference * type):
        Any(static_cast<void *>(nullptr), type) {}
#endif

    inline ~Any();

    inline Any & SAL_CALL operator = ( const Any & rAny );
 
#if defined LIBO_INTERNAL_ONLY
#if !defined(__COVERITY__) // suppress COPY_INSTEAD_OF_MOVE suggestions
    inline Any(Any && other) noexcept;
#endif
    inline Any & operator =(Any && other) noexcept;
#endif

    const Type & SAL_CALL getValueType() const
        { return * reinterpret_cast< const Type * >( &pType ); }

    typelib_TypeDescriptionReference * SAL_CALL getValueTypeRef() const
        { return pType; }

    void SAL_CALL getValueTypeDescription( typelib_TypeDescription ** ppTypeDescr ) const
        { ::typelib_typedescriptionreference_getDescription( ppTypeDescr, pType ); }

    TypeClass SAL_CALL getValueTypeClass() const
        { return static_cast<TypeClass>(pType->eTypeClass); }

    inline ::rtl::OUString SAL_CALL getValueTypeName() const;

    bool SAL_CALL hasValue() const
        { return (typelib_TypeClass_VOID != pType->eTypeClass); }

    const void * SAL_CALL getValue() const
        { return pData; }

    template <typename T>
    inline T get() const;

    inline void SAL_CALL setValue( const void * pData_, const Type & rType );
    inline void SAL_CALL setValue( const void * pData_, typelib_TypeDescriptionReference * pType_ );
    inline void SAL_CALL setValue( const void * pData_, typelib_TypeDescription * pTypeDescr );
 
#if defined LIBO_INTERNAL_ONLY
    void setValue(bool const *, Type const &) = delete;
    void setValue(bool const *, typelib_TypeDescriptionReference *) = delete;
    void setValue(bool const *, typelib_TypeDescription *) = delete;
    void setValue(sal_Bool const *, Type const &) = delete;
    void setValue(sal_Bool const *, typelib_TypeDescriptionReference *)
        = delete;
    void setValue(sal_Bool const *, typelib_TypeDescription *) = delete;
    void setValue(std::nullptr_t, Type const & type)
    { setValue(static_cast<void *>(nullptr), type); }
    void setValue(std::nullptr_t, typelib_TypeDescriptionReference * type)
    { setValue(static_cast<void *>(nullptr), type); }
    void setValue(std::nullptr_t, typelib_TypeDescription * type)
    { setValue(static_cast<void *>(nullptr), type); }
#endif

    inline void SAL_CALL clear();

    inline bool SAL_CALL isExtractableTo( const Type & rType ) const;

    template <typename T>
    inline bool has() const;

    inline bool SAL_CALL operator == ( const Any & rAny ) const;
    inline bool SAL_CALL operator != ( const Any & rAny ) const;
 
#if defined LIBO_INTERNAL_ONLY
    // Similar to Reference::query/queryThrow, these allow to simplify calling constructors of
    // Reference taking Any. queryThrow is functionally similar to get(), but doesn't require
    // to specify the full Reference type explicitly, only the interface type.
    template<class interface_type> inline Reference<interface_type> query() const;
    template<class interface_type> inline Reference<interface_type> queryThrow() const;
#endif
 
private:
#if !defined LIBO_INTERNAL_ONLY
    // Forbid use with ambiguous type (sal_Unicode, sal_uInt16):
    explicit Any(sal_uInt16) SAL_DELETED_FUNCTION;
#endif
};
 
#if !defined LIBO_INTERNAL_ONLY
// Forbid use with ambiguous type (sal_Unicode, sal_uInt16):
template<> sal_uInt16 Any::get<sal_uInt16>() const SAL_DELETED_FUNCTION;
template<> bool Any::has<sal_uInt16>() const SAL_DELETED_FUNCTION;
#endif
 
#if !defined LIBO_INTERNAL_ONLY
template< class C >
inline Any SAL_CALL makeAny( const C & value );
 
template<> inline Any SAL_CALL makeAny(sal_uInt16 const & value);
 
template<> Any SAL_CALL makeAny(Any const &) SAL_DELETED_FUNCTION;
#endif

template<typename T> inline Any toAny(T const & value);
 
template<> inline Any toAny(Any const & value);
 
#if defined LIBO_INTERNAL_ONLY

template<typename T> inline bool fromAny(Any const & any, T * value);
 
template<> inline bool fromAny(Any const & any, Any * value);
 
#endif
 
class BaseReference;

template< class C >
inline void SAL_CALL operator <<= ( Any & rAny, const C & value );
 
// additionally for C++ bool:
template<>
inline void SAL_CALL operator <<= ( Any & rAny, bool const & value );

template< class C >
inline bool SAL_CALL operator >>= ( const Any & rAny, C & value );

template< class C >
inline bool SAL_CALL operator == ( const Any & rAny, const C & value );
template< class C >
inline bool SAL_CALL operator != ( const Any & rAny, const C & value );
 
// additional specialized >>= and == operators
// bool
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_Bool & value );
template<>
inline bool SAL_CALL operator == ( const Any & rAny, const sal_Bool & value );
template<>
inline bool SAL_CALL operator >>= ( Any const & rAny, bool & value );
template<>
inline bool SAL_CALL operator == ( Any const & rAny, bool const & value );
// byte
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_Int8 & value );
// short
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_Int16 & value );
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_uInt16 & value );
// long
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_Int32 & value );
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_uInt32 & value );
// hyper
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_Int64 & value );
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, sal_uInt64 & value );
// float
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, float & value );
// double
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, double & value );
// string
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, ::rtl::OUString & value );
template<>
inline bool SAL_CALL operator == ( const Any & rAny, const ::rtl::OUString & value );
#if defined LIBO_INTERNAL_ONLY
template<std::size_t N>
inline bool SAL_CALL operator == (const Any& rAny, const rtl::OUStringLiteral<N>& value);
#endif
// type
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, Type & value );
template<>
inline bool SAL_CALL operator == ( const Any & rAny, const Type & value );
// any
#if !defined LIBO_INTERNAL_ONLY
template<>
inline bool SAL_CALL operator >>= ( const Any & rAny, Any & value );
#endif
// interface
template<>
inline bool SAL_CALL operator == ( const Any & rAny, const BaseReference & value );
 
}
}
}
}

SAL_DEPRECATED("use cppu::UnoType")
inline const ::com::sun::star::uno::Type & SAL_CALL getCppuType( SAL_UNUSED_PARAMETER const ::com::sun::star::uno::Any * )
{
    return ::cppu::UnoType< ::com::sun::star::uno::Any >::get();
}
 
#endif
 
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