From da3067ca032f6b9369a5004f0c30531ac6be7e2c Mon Sep 17 00:00:00 2001
From: Illia Polosukhin <ilblackdragon@gmail.com>
Date: Mon, 21 Jan 2019 23:02:17 -0800
Subject: [PATCH] Adding lifetime to Externals to allow to expose infromation
 by reference that exists within externals existance

---
 src/host.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/host.rs b/src/host.rs
index 65393e8..ca869a4 100644
--- a/src/host.rs
+++ b/src/host.rs
@@ -199,8 +199,8 @@ impl HostError {
 /// ```
 pub trait Externals {
 	/// Perform invoke of a host function by specified `index`.
-	fn invoke_index(
-		&mut self,
+	fn invoke_index<'a>(
+		&'a mut self,
 		index: usize,
 		args: RuntimeArgs,
 	) -> Result<Option<RuntimeValue>, Trap>;