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/*
* Copyright 2019 by its authors. See AUTHORS.
*
* Licensed 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef EFL_EET_COMPOSITE_HH_
#define EFL_EET_COMPOSITE_HH_
namespace efl { namespace eet {
template <typename, typename...> struct descriptor;
namespace _detail {
struct member_desc_info
{
const char* name;
std::size_t offset;
};
template <std::size_t E, typename U, typename... Types>
void descriptor_register_composite_member( ::Eet_Data_Descriptor*, int
, eet::descriptor<U, Types...>const*
, std::integral_constant<std::size_t, E>)
{
}
template <std::size_t E, typename U, typename... Types, std::size_t I>
void descriptor_register_composite_member( ::Eet_Data_Descriptor* cls, int offset_base
, eet::descriptor<U, Types...>const* descriptor
, std::integral_constant<std::size_t, I>
, typename std::enable_if<E != I>::type* = 0)
{
typedef typename std::tuple_element<I, std::tuple<Types...> >::type member_type;
eet_data_descriptor_element_add(cls, descriptor->get_member_info()[I].name
, _eet_type<member_type>::value, EET_G_UNKNOWN
, offset_base + descriptor->get_member_info()[I].offset
, 0, nullptr, nullptr);
_detail::descriptor_register_composite_member<E>
(cls, offset_base, descriptor, std::integral_constant<std::size_t, I+1>());
}
template <typename U, typename...Types>
void descriptor_type_register_composite( ::Eet_Data_Descriptor* cls, member_desc_info info
, eet::descriptor<U, Types...>const* descriptor)
{
_detail::descriptor_register_composite_member<eet::descriptor<U, Types...>::members::value>
(cls, info.offset, descriptor, std::integral_constant<std::size_t, 0u>());
}
} } }
#endif