From f2577c8af30c862bbcbd0a14613479502f85f14b Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@cloudius-systems.com>
Date: Fri, 17 Jul 2015 16:07:33 +0300
Subject: [PATCH] function_traits: export the function signature as a type

This makes it easy to further examine using pattern matching instead
of std::index_sequence.
---
 core/function_traits.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/function_traits.hh b/core/function_traits.hh
index b45b418c35..1d278a6207 100644
--- a/core/function_traits.hh
+++ b/core/function_traits.hh
@@ -31,6 +31,7 @@ struct function_traits<Ret(Args...)>
 {
     using return_type = Ret;
     using args_as_tuple = std::tuple<Args...>;
+    using signature = Ret (Args...);
  
     static constexpr std::size_t arity = sizeof...(Args);