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42 lines
626 B
C++
42 lines
626 B
C++
#ifndef CPP_JWT_META_HPP
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#define CPP_JWT_META_HPP
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#include <type_traits>
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namespace jwt {
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namespace detail {
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namespace meta {
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template <typename... T>
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struct make_void
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{
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using type = void;
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};
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template <typename... T>
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using void_t = typename make_void<T...>::type;
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template <typename T, typename=void>
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struct has_create_json_obj_member: std::false_type
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{
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};
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template <typename T>
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struct has_create_json_obj_member<T,
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void_t<
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decltype(
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std::declval<T&&>().create_json_obj(),
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(void)0
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)
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>
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>: std::true_type
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{
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};
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} // END namespace meta
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} // END namespace detail
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} // END namespace jwt
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#endif
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