From ad254790a4f3ff65edbdebfa2608881e9baab817 Mon Sep 17 00:00:00 2001
From: Adam Reichold <adam.reichold@rhebo.com>
Date: Fri, 11 Oct 2019 16:30:01 +0200
Subject: [PATCH] Avoid temporary allocation when push locals during function
 invocation.

---
 src/runner.rs | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/runner.rs b/src/runner.rs
index bcc1853..2f10954 100644
--- a/src/runner.rs
+++ b/src/runner.rs
@@ -1289,13 +1289,9 @@ impl FunctionContext {
         debug_assert!(!self.is_initialized);
 
         let num_locals = locals.iter().map(|l| l.count() as usize).sum();
-        let locals = vec![Default::default(); num_locals];
 
-        // TODO: Replace with extend.
-        for local in locals {
-            value_stack
-                .push(local)
-                .map_err(|_| TrapKind::StackOverflow)?;
+        for _ in 0..num_locals {
+            value_stack.push(Default::default())?;
         }
 
         self.is_initialized = true;