sdesai · June 18, 2010 20:48 · Jun 18, 2010
diff --git a/gistfile1.js b/gistfile1.js
@@ -0,0 +1,58 @@
+YUI.add('root-cls', function (Y) {
+    Y.Base._buildCfg.aggregates.push('getClassAttrs');
+
+    Y.rootClass = Y.Base.create('root-class', Y.Base, [], {
+        someInstanceMethod :  function () {}
+    }, {
+        ATTRS : {
+            test : {
+                validator : Y.Lang.isBoolean
+            }
+        }
+    });
+
+    Y.rootExt = Y.Base.create('root-ext', Y.Base, [], {}, {        
+        getClassAttrs : function () {
+            var attrs = {},
+                c = this.prototype.constructor;
+
+            while (c) {
+                Y.mix(attrs, c.ATTRS, true);
+                c = (c.superclass ? c.superclass.constructor : null);
+            }
+
+            return attrs;
+        }
+    });
+
+}, '1.0', {requires : ['base']});
+
+YUI().use('root-cls', function (Y) {
+    var mainClass = Y.Base.create('main-class', Y.rootClass, [Y.rootExt], {}, {
+        ATTRS : {
+            foo : {
+                validator : Y.Lang.isNumber
+            },
+            bar : {
+                validator : Y.Lang.isString
+            }
+        }
+    });
+
+    console.log('class method: ', mainClass.getClassAttrs)
+    console.log('class instanceof: ', new mainClass() instanceof Y.rootClass);
+    console.log('class attrs: ', mainClass.getClassAttrs());
+
+    var mySubClass = Y.Base.create('my-subclass', mainClass, [Y.rootExt], {}, {
+        ATTRS : {
+            baz : {
+                validator : Y.Lang.isBoolean,
+                value : false
+            }
+        }
+    });
+
+    console.log('subclass method: ', mySubClass.getClassAttrs)
+    console.log('subclass instanceof: ', new mySubClass() instanceof Y.rootClass);
+    console.log('subclass attrs: ', mySubClass.getClassAttrs());    
+});