lib/less/js/lib/less/tree/variable.js in less-2.4.0 vs lib/less/js/lib/less/tree/variable.js in less-2.5.0

@@ -1,14 +1,18 @@
 (function (tree) {
 
-tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo };
+tree.Variable = function (name, index, currentFileInfo) {
+    this.name = name;
+    this.index = index;
+    this.currentFileInfo = currentFileInfo || {};
+};
 tree.Variable.prototype = {
     type: "Variable",
     eval: function (env) {
-        var variable, v, name = this.name;
+        var variable, name = this.name;
 
-        if (name.indexOf('@@') == 0) {
+        if (name.indexOf('@@') === 0) {
             name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
         }
         
         if (this.evaluating) {
             throw { type: 'Name',
@@ -17,18 +21,19 @@
                     index: this.index };
         }
         
         this.evaluating = true;
 
-        if (variable = tree.find(env.frames, function (frame) {
-            if (v = frame.variable(name)) {
+        variable = tree.find(env.frames, function (frame) {
+            var v = frame.variable(name);
+            if (v) {
                 return v.value.eval(env);
             }
-        })) { 
+        });
+        if (variable) { 
             this.evaluating = false;
             return variable;
-        }
-        else {
+        } else {
             throw { type: 'Name',
                     message: "variable " + name + " is undefined",
                     filename: this.currentFileInfo.filename,
                     index: this.index };
         }