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add support for statically named arguments with FMT_STRING

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This commit is contained in:
Alexey Ochapov
2021-05-14 16:31:10 -07:00
committed by Victor Zverovich
parent ea94d6d93c
commit 54f22a3eef
4 changed files with 67 additions and 31 deletions
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include/fmt/compile.h
+1 -15
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@@ -191,24 +191,10 @@ constexpr const auto& get([[maybe_unused]] const T& first,
return get<N - 1>(rest...);
}
constexpr int invalid_arg_index = -1;
template <int N, typename T, typename... Args, typename Char>
constexpr int get_arg_index_by_name(basic_string_view<Char> name) {
if constexpr (detail::is_statically_named_arg<T>()) {
if (name == T::name) return N;
}
if constexpr (sizeof...(Args) == 0) {
return invalid_arg_index;
} else {
return get_arg_index_by_name<N + 1, Args...>(name);
}
}
template <typename Char, typename... Args>
constexpr int get_arg_index_by_name(basic_string_view<Char> name,
type_list<Args...>) {
return get_arg_index_by_name<0, Args...>(name);
return get_arg_index_by_name<Args...>(name);
}
template <int N, typename> struct get_type_impl;