From 422d642cf47c08711de41573aa2949fecefbb84e Mon Sep 17 00:00:00 2001
From: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Date: Fri, 6 Mar 2015 10:01:08 +0100
Subject: [PATCH] core: Add futurize::primise_type

---
 core/future.hh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/future.hh b/core/future.hh
index 2a9c69022a..25ee4a1287 100644
--- a/core/future.hh
+++ b/core/future.hh
@@ -362,16 +362,19 @@ struct futurize;
 template <typename T>
 struct futurize {
     using type = future<T>;
+    using promise_type = promise<T>;
 };
 
 template <>
 struct futurize<void> {
     using type = future<>;
+    using promise_type = promise<>;
 };
 
 template <typename... Args>
 struct futurize<future<Args...>> {
     using type = future<Args...>;
+    using promise_type = promise<Args...>;
 };
 
 // Converts a type to a future type, if it isn't already.