41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#ifndef RFL_INTERNAL_MOVE_AND_FLATTEN_FIELD_TUPLE_HPP_
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#define RFL_INTERNAL_MOVE_AND_FLATTEN_FIELD_TUPLE_HPP_
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#include <tuple>
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#include "is_flatten_field.hpp"
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#include "move_to_field_tuple.hpp"
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namespace rfl {
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namespace internal {
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template <class FieldTuple, class... Args>
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auto move_and_flatten_field_tuple(FieldTuple&& _t, Args&&... _args) {
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constexpr auto i = sizeof...(Args);
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if constexpr (i == std::tuple_size_v<std::remove_cvref_t<FieldTuple>>) {
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return std::tuple_cat(std::move(_args)...);
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} else {
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using T = std::tuple_element_t<i, std::remove_cvref_t<FieldTuple>>;
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if constexpr (is_flatten_field<T>::value) {
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return move_and_flatten_field_tuple(
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std::move(_t),
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std::move(_args)...,
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move_and_flatten_field_tuple(
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move_to_field_tuple(std::move(std::get<i>(_t).value_))
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)
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);
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} else {
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return move_and_flatten_field_tuple(
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std::move(_t),
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std::move(_args)...,
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std::make_tuple(std::move(std::get<i>(_t)))
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);
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}
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}
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}
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} // namespace internal
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} // namespace rfl
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#endif
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