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Simplify format string compilation
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@ -176,7 +176,7 @@ class prepared_format {
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using char_type = char_t<Format>;
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using format_part_t = format_part<char_type>;
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prepared_format(Format f)
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constexpr prepared_format(Format f)
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: format_(std::move(f)), parts_provider_(to_string_view(format_)) {}
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prepared_format() = delete;
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@ -518,45 +518,14 @@ struct preparator<PassedFormat, prepared_format<PreparedFormatFormat,
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return prepared_format_type(std::move(format));
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}
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};
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struct compiletime_format_tag {};
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struct runtime_format_tag {};
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template <typename Format> struct format_tag {
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using type = conditional_t<is_compile_string<Format>::value,
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compiletime_format_tag, runtime_format_tag>;
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};
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#if FMT_USE_CONSTEXPR
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template <typename Format, typename... Args>
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auto do_compile(runtime_format_tag, Format format) {
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return preparator<Format, Args...>::prepare(std::move(format));
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}
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template <typename Format, typename... Args>
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FMT_CONSTEXPR auto do_compile(compiletime_format_tag, const Format& format) {
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return typename basic_prepared_format<Format, void, Args...>::type(format);
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}
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#else
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template <typename Format, typename... Args>
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auto do_compile(const Format& format)
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-> decltype(preparator<Format, Args...>::prepare(format)) {
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return preparator<Format, Args...>::prepare(format);
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}
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#endif
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template <typename... Args>
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using prepared_format_t =
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typename basic_prepared_format<std::string, parts_container<char>,
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Args...>::type;
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} // namespace internal
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#if FMT_USE_CONSTEXPR
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template <typename... Args, typename S,
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FMT_ENABLE_IF(is_compile_string<S>::value)>
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FMT_CONSTEXPR auto compile(S format_str) {
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return internal::do_compile<S, Args...>(
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typename internal::format_tag<S>::type{}, std::move(format_str));
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return typename internal::basic_prepared_format<S, void, Args...>::type(
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format_str);
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}
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#endif
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@ -566,7 +535,7 @@ auto compile(const Char (&format_str)[N]) ->
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Args...>::prepared_format_type {
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const auto view = basic_string_view<Char>(format_str, N - 1);
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return internal::preparator<std::basic_string<Char>, Args...>::prepare(
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internal::to_runtime_format(view));
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internal::to_runtime_format(view));
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}
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template <typename CompiledFormat, typename... Args,
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