From 11b647db34fcb3debf85196d55131486b784d0ce Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Tue, 25 Jun 2019 21:07:23 +0200
Subject: Fix: We must return concrete types here

---
 src/node.rs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/node.rs b/src/node.rs
index b6a088b..282241f 100644
--- a/src/node.rs
+++ b/src/node.rs
@@ -23,17 +23,16 @@ use futures::stream::Stream;
 ///
 pub trait Node: Debug + PartialEq + Eq {
     type Id: Id;
-    type NodePayload: Debug;
+    type Payload: Debug;
     type Error: Debug;
-    type Payload: Future<Item = Self::NodePayload, Error = Self::Error>;
 
     /// It should be trivial to get the Id of a Node.
     fn id(&self) -> Self::Id;
 
     /// Fetch the payload of the node.
-    fn payload(&self) -> Self::Payload;
+    fn payload(&self) -> Box<Future<Item = Self::Payload, Error = Self::Error>>;
 
     /// Fetch the Ids of the parents of this node
-    fn parent_ids(&self) -> Stream<Item = Self::Id, Error = Self::Error>;
+    fn parent_ids(&self) -> Box<Stream<Item = Self::Id, Error = Self::Error>>;
 }
 
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