refactored rule() cause the closure slows things down too much for some reason

lib/less/parser.js

@@ -657,17 +657,17 @@ less.parser = {
             }
         },
         rule: function () {
+            var value;
+
             if (name = $(this.property) || $(this.variable)) {
-                value = (function (that) {
-                    if ((name[0] != '@') && (match = peek(/([^@+\/*(;{}-]*);/g))) {
-                        i += match[0].length - 1;
-                        return match[1];
-                    } else if (name === "font") {
-                        return $(that.font);
-                    } else {
-                        return $(that.value);
-                    }
-                })(this);
+                if ((name[0] != '@') && (match = peek(/([^@+\/*(;{}-]*);/g))) {
+                    i += match[0].length - 1;
+                    value = match[1];
+                } else if (name === "font") {
+                    value = $(this.font);
+                } else {
+                    value = $(this.value);
+                }
 
                 if ($(this.end)) {
                     return new(tree.Rule)(name, value);