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#ifndef RFL_REPLACE_HPP_
#define RFL_REPLACE_HPP_
#include <type_traits>
#include "from_named_tuple.hpp"
namespace rfl {
/// Replaces one or several fields, returning a new version
/// with the non-replaced fields left unchanged.
template <class T, class RField, class... OtherRFields>
auto replace(T&& _t, RField&& _field, OtherRFields&&... _other_fields) {
if constexpr (internal::is_named_tuple_v<T>) {
return std::forward<T>(_t).replace(
to_named_tuple(std::forward<RField>(_field)),
to_named_tuple(std::forward<OtherRFields>(_other_fields))...);
} else {
return from_named_tuple<T>(
to_named_tuple(std::forward<T>(_t))
.replace(to_named_tuple(std::forward<RField>(_field)),
to_named_tuple(
std::forward<OtherRFields>(_other_fields))...));
}
}
/// Replaces one or several fields, returning a new version
/// with the non-replaced fields left unchanged.
template <class T, class RField, class... OtherRFields>
auto replace(const T& _t, RField&& _field, OtherRFields&&... _other_fields) {
if constexpr (internal::is_named_tuple_v<T>) {
return _t.replace(
to_named_tuple(std::forward<RField>(_field)),
to_named_tuple(std::forward<OtherRFields>(_other_fields))...);
} else {
return from_named_tuple<T>(to_named_tuple(_t).replace(
to_named_tuple(std::forward<RField>(_field)),
to_named_tuple(std::forward<OtherRFields>(_other_fields))...));
}
}
} // namespace rfl
#endif
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