From c9b14e9bd4964667828e39b263581628a5064e6b Mon Sep 17 00:00:00 2001
From: rbrugo <brugo.riccardo@gmail.com>
Date: Mon, 7 Mar 2022 16:12:15 +0100
Subject: [PATCH] Inherit from formatter<Arg> to get the underlying `parse` and
 `format`

---
 include/fmt/color.h | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/include/fmt/color.h b/include/fmt/color.h
index 179c6f64..c9c5a93c 100644
--- a/include/fmt/color.h
+++ b/include/fmt/color.h
@@ -643,22 +643,7 @@ template <typename Arg> struct styled_arg {
 FMT_END_DETAIL_NAMESPACE
 
 template <typename Arg, typename Char>
-struct formatter<detail::styled_arg<Arg>, Char> {
- private:
-  using value_type = Arg;
-  using formatter_type =
-      conditional_t<is_formattable<value_type, Char>::value,
-                    formatter<remove_cvref_t<value_type>, Char>,
-                    detail::fallback_formatter<value_type, Char>>;
-
-  formatter_type value_formatter_;
-
- public:
-  template <typename ParseContext>
-  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
-    return value_formatter_.parse(ctx);
-  }
-
+struct formatter<detail::styled_arg<Arg>, Char> : formatter<Arg, Char> {
   template <typename FormatContext>
   auto format(detail::styled_arg<Arg> const& arg, FormatContext& ctx) const
       -> decltype(ctx.out()) {
@@ -687,7 +672,7 @@ struct formatter<detail::styled_arg<Arg>, Char> {
           detail::make_background_color<Char>(ts.get_background());
       buf.append(background.begin(), background.end());
     }
-    out = value_formatter_.format(value, ctx);
+    out = formatter<Arg, Char>::format(value, ctx);
     if (has_style) detail::reset_color<Char>(buf);
     return out;
   }