diff --git a/src/purerender-mixin.js b/src/purerender-mixin.js
index cce7708..8f84f06 100644
--- a/src/purerender-mixin.js
+++ b/src/purerender-mixin.js
@@ -14,6 +14,73 @@ module.exports = function( propTypes ){
 
     ChangeTokens.prototype = null;
 
+    return {
+        _changeTokens : null,
+
+        shouldComponentUpdate : function( nextProps ){
+            return isChanged( this._changeTokens, nextProps, this.state );
+        },
+
+        componentDidMount  : function(){
+            this._changeTokens = new ChangeTokens( this.props, this.state );
+        },
+        componentDidUpdate : function(){
+            this._changeTokens = new ChangeTokens( this.props, this.state );
+        }
+    }
+};
+
+function advanced( propTypes ){
+    function propExpr( name ){
+        return '(( v = p.${key} ) && v._changeToken ) || v'.replace( '${key}', name );
+    }
+
+    join( )
+    macro( propTypes )
+        .transform( '(( v = p.${key} ) && v._changeToken ) || v' )
+        .transform( 'this.${key} = ${val};' )
+
+
+    var Tokens = Function
+                    .define( 'p', 's' )
+                    .add( 'var v;' )
+                    .add( 'this._s = s && s._changeToken;' )
+                    .unroll( 'this.${key} = ${val};', propTypes, propExpr )
+                    .create({ prototype : null });
+
+    var isChanged = Function
+                    .define( 't', 'p', 's' )
+                    .add( 'var v;' )
+                    .add( 'return ( s && s._changeToken! == t._s )' )
+                    .unroll( 't.${key} !==( ${val} )')
+
+
+    [
+        'var v;',
+        'return ',
+            join( '||', [
+                '( s && s._changeToken! == t._s )',
+
+            ])
+
+        ]
+
+
+    var ctor      = [ 'var v;this._s=s&&s._changeToken' ],
+        isChanged = [ 'var v;return(s&&s._changeToken!==t._s)' ];
+
+    for( var name in propTypes ){
+        var propExpr = '((v=p.' + name + ')&&v._changeToken)||v';
+
+        ctor.push( 'this.' + name + '=' + propExpr );
+        isChanged.push( 't.' + name + '!==(' + propExpr + ')' );
+    }
+
+    var ChangeTokens = new Function( 'p', 's', ctor.join( ';' ) ),
+        isChanged    = new Function( 't', 'p', 's', isChanged.join( '||' ) );
+
+    ChangeTokens.prototype = null;
+
     return {
         _changeTokens : null,