forked from enlightenment/efl
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
#ifndef EFL_EET_COMPOSITE_HH_
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#define EFL_EET_COMPOSITE_HH_
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namespace efl { namespace eet {
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template <typename, typename...> struct descriptor;
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namespace _detail {
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struct member_desc_info
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{
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const char* name;
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std::size_t offset;
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};
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template <std::size_t E, typename U, typename... Types>
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void descriptor_register_composite_member( ::Eet_Data_Descriptor*, int
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, eet::descriptor<U, Types...>const*
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, std::integral_constant<std::size_t, E>)
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{
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}
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template <std::size_t E, typename U, typename... Types, std::size_t I>
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void descriptor_register_composite_member( ::Eet_Data_Descriptor* cls, int offset_base
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, eet::descriptor<U, Types...>const* descriptor
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, std::integral_constant<std::size_t, I>
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, typename std::enable_if<E != I>::type* = 0)
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{
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typedef typename std::tuple_element<I, std::tuple<Types...> >::type member_type;
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eet_data_descriptor_element_add(cls, descriptor->get_member_info()[I].name
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, _eet_type<member_type>::value, EET_G_UNKNOWN
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, offset_base + descriptor->get_member_info()[I].offset
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, 0, nullptr, nullptr);
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_detail::descriptor_register_composite_member<E>
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(cls, offset_base, descriptor, std::integral_constant<std::size_t, I+1>());
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}
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template <typename U, typename...Types>
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void descriptor_type_register_composite( ::Eet_Data_Descriptor* cls, member_desc_info info
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, eet::descriptor<U, Types...>const* descriptor)
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{
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_detail::descriptor_register_composite_member<eet::descriptor<U, Types...>::members::value>
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(cls, info.offset, descriptor, std::integral_constant<std::size_t, 0u>());
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}
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} } }
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#endif
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