From fecfc5b09feb7e4079364013b0beb6bf204ade2a Mon Sep 17 00:00:00 2001
From: Igor Minar <igor@angularjs.org>
Date: Fri, 1 Aug 2014 15:48:41 -0700
Subject: [PATCH] perf($parse): speed up fn invocation by optimizing arg
 collection

8-15% improvement for depending on the number of args
---
 src/ng/parse.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/ng/parse.js b/src/ng/parse.js
index 2997401f..491e80d0 100644
--- a/src/ng/parse.js
+++ b/src/ng/parse.js
@@ -723,14 +723,17 @@ Parser.prototype = {
     this.consume(')');
 
     var parser = this;
+    var args = []; // we can safely reuse the array
 
     return function(scope, locals) {
-      var args = [];
       var context = contextGetter ? contextGetter(scope, locals) : scope;
 
-      for (var i = 0; i < argsFn.length; i++) {
-        args.push(argsFn[i](scope, locals));
+
+      var i = argsFn.length;
+      while (i--) {
+        args[i] = argsFn[i](scope, locals);
       }
+
       var fnPtr = fn(scope, locals, context) || noop;
 
       ensureSafeObject(context, parser.text);