From 73eb217cbb9a4dd1b5e503eb4a38668d2f53ac87 Mon Sep 17 00:00:00 2001
From: Cheer Xiao <xiaqqaix@gmail.com>
Date: Mon, 19 Jan 2015 22:37:38 +0100
Subject: [PATCH] Update comment

---
 eval/compile.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/eval/compile.go b/eval/compile.go
index f607bd85..28ad9de8 100644
--- a/eval/compile.go
+++ b/eval/compile.go
@@ -140,7 +140,8 @@ func (cp *Compiler) mustResolveVar(name string, p parse.Pos) Type {
 
 // ResolveVar returns the type of a variable with supplied name, found in
 // current or upper scopes. If such a variable is nonexistent, a nil is
-// returned.
+// returned. When the value to resolve is not on the current scope, it is added
+// to cp.enclosed.
 func (cp *Compiler) ResolveVar(name string) Type {
 	thisScope := len(cp.scopes) - 1
 	for i := thisScope; i >= 0; i-- {