tweaks to scope

lib/scope.js

@@ -7,12 +7,7 @@
         this.method = _arg3;
         this.expressions = _arg2;
         this.parent = _arg;
-        this.variables = [
-          {
-            name: 'arguments',
-            type: 'arguments'
-          }
-        ];
+        this.variables = [];
         this.positions = {};
         if (this.parent) {
           this.garbage = this.parent.garbage;
@@ -25,14 +20,14 @@
       return Scope;
     })();
     Scope.root = null;
-    Scope.prototype.setVar = function(name, type) {
+    Scope.prototype.add = function(name, type) {
       if (this.positions.hasOwnProperty(name)) {
         this.variables[this.positions[name]].type = type;
       } else {
-        this.positions[name] = -1 + this.variables.push({
+        this.positions[name] = this.variables.push({
           name: name,
           type: type
-        });
+        }) - 1;
       }
       return this;
     };
@@ -45,7 +40,7 @@
       for (_i = 0, _len = (_ref2 = this.garbage.pop()).length; _i < _len; _i++) {
         name = _ref2[_i];
         if (this.type(name) === 'var') {
-          this.setVar(name, 'reuse');
+          this.add(name, 'reuse');
         }
       }
       return this;
@@ -54,7 +49,7 @@
       if (this.check(name, options)) {
         return true;
       }
-      this.setVar(name, 'var');
+      this.add(name, 'var');
       return false;
     };
     Scope.prototype.any = function(fn) {
@@ -68,7 +63,7 @@
       return false;
     };
     Scope.prototype.parameter = function(name) {
-      return this.setVar(name, 'param');
+      return this.add(name, 'param');
     };
     Scope.prototype.check = function(name, options) {
       var _ref2, immediate;
@@ -97,12 +92,12 @@
       while (this.check(temp = this.temporary(type, index)) && this.type(temp) !== 'reuse') {
         index++;
       }
-      this.setVar(temp, 'var');
+      this.add(temp, 'var');
       ((_ref2 = last(this.garbage)) != null) ? _ref2.push(temp) : undefined;
       return temp;
     };
     Scope.prototype.assign = function(name, value) {
-      return this.setVar(name, {
+      return this.add(name, {
         value: value,
         assigned: true
       });