From bc6cd2ef12d4bfad041055095e927eec33fc9ca3 Mon Sep 17 00:00:00 2001
From: Robert Krimen <robertkrimen@gmail.com>
Date: Mon, 5 Nov 2012 17:39:52 -0800
Subject: [PATCH] Get variable binding a bit closer to the specification

---
 runtime.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/runtime.go b/runtime.go
index c36661a..5e55205 100644
--- a/runtime.go
+++ b/runtime.go
@@ -236,11 +236,18 @@ func (self *_runtime) continueEvaluate(node _node, _labelSet map[string]bool) (r
 }
 
 func (self *_runtime) declare(kind string, declarationList []_declaration) {
+	environment := self._executionContext(0).VariableEnvironment
 	for _, _declaration := range declarationList {
-		self.localSet(_declaration.Name, UndefinedValue())
+		name := _declaration.Name
+		//self.localSet(_declaration.Name, UndefinedValue())
 		if kind == "function" {
 			value := self.evaluate(_declaration.Definition)
 			self.localSet(_declaration.Name, value)
+		} else {
+			if !environment.HasBinding(name) {
+				environment.CreateMutableBinding(name, false) // TODO configurableBindings
+				environment.SetMutableBinding(name, UndefinedValue(), false) // TODO strict
+			}
 		}
 	}
 }