Emily Boudreaux
ec13264050
A bug was discovered in glaze which prevented valid toml output. We have switched to toml++ and reflect-cpp. The interface has remained the same so this should not break any code
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#ifndef RFL_INTERNAL_NO_DUPLICATE_FIELD_NAMES_HPP_
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#define RFL_INTERNAL_NO_DUPLICATE_FIELD_NAMES_HPP_
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#include "../Tuple.hpp"
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namespace rfl {
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namespace internal {
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namespace no_duplicate_field_names_helpers {
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template <class Fields, int _i, int _j>
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constexpr inline void compare_two_fields() {
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if constexpr (_j < _i) {
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using FieldType1 = std::remove_cvref_t<tuple_element_t<_i, Fields>>;
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using FieldType2 = std::remove_cvref_t<tuple_element_t<_j, Fields>>;
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constexpr auto field_name_i = FieldType1::name_;
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constexpr auto field_name_j = FieldType2::name_;
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constexpr bool no_duplicate = (field_name_i != field_name_j);
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static_assert(no_duplicate,
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"Duplicate field names are not allowed in either named "
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"tuples or Literals.");
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}
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}
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template <class Fields, int _i, int... _js>
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constexpr inline void iterate_over_j(std::integer_sequence<int, _js...>) {
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(compare_two_fields<Fields, _i, _js>(), ...);
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}
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template <class Fields, int... _is>
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constexpr inline void iterate_over_i(std::integer_sequence<int, _is...>) {
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(iterate_over_j<Fields, _is>(std::make_integer_sequence<int, _is>()), ...);
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}
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} // namespace no_duplicate_field_names_helpers
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template <class Fields>
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constexpr inline bool no_duplicate_field_names() {
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constexpr auto num_fields = rfl::tuple_size_v<Fields>;
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if constexpr (num_fields <= 1) {
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return true;
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} else {
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no_duplicate_field_names_helpers::iterate_over_i<Fields>(
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std::make_integer_sequence<int, num_fields>());
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return true;
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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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