From efd37300b9d488ceee9746001fabd53487877939 Mon Sep 17 00:00:00 2001
From: Deirdre Connolly <deirdre@zfnd.org>
Date: Tue, 26 Nov 2019 02:02:03 -0500
Subject: [PATCH] Impl From trait for Responses from generic Error impls

Also include new Response::Error variant.
---
 zebra-network/src/protocol/internal.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/zebra-network/src/protocol/internal.rs b/zebra-network/src/protocol/internal.rs
index d7d804f97..cd40d9757 100644
--- a/zebra-network/src/protocol/internal.rs
+++ b/zebra-network/src/protocol/internal.rs
@@ -4,6 +4,8 @@
 //! responses, so that we have unified types to pass around. No serialization
 //! is performed as these are only internal types.
 
+use std::error::Error;
+
 use zebra_chain::transaction::Transaction;
 
 use crate::meta_addr::MetaAddr;
@@ -32,8 +34,19 @@ pub enum Request {
 pub enum Response {
     /// Generic success.
     Ok,
+    /// Generic error.
+    Error,
     /// A list of peers, used to respond to `GetPeers`.
     Peers(Vec<MetaAddr>),
     /// A list of transactions, such as in response to `GetMempool`.
     Transactions(Vec<Transaction>),
 }
+
+impl<E> From<E> for Response
+where
+    E: Error,
+{
+    fn from(e: E) -> Self {
+        Self::Error
+    }
+}