dispose: function(){
			expression_unbind(
				this.expr,
				this.model,
				this.controller,
				this.binder
			);

			this.controller = null;
			this.model = null;
			this.ctx = null;

			var switch_ = this.Switch,
				key,
				els, i, imax
				;

			for(key in switch_) {
				els = switch_[key];

				if (els == null)
					continue;

				imax = els.length;
				i = -1;
				while ( ++i < imax ){
					if (els[i].parentNode != null)
						els[i].parentNode.removeChild(els[i]);
				}
			}
		}

    dispose: function(){
        var switch_ = this.Switch,
            imax = switch_.length,
            i = -1,

            x, expr;

        while( ++i < imax ){
            x = switch_[i];
            expr = x.node.expression;

            if (expr) {
                expression_unbind(
                    expr,
                    this.model,
                    this.controller,
                    this.binder
                );
            }

            x.node = null;
            x.elements = null;
        }

        this.controller = null;
        this.model = null;
        this.ctx = null;
    }

		dispose: function(){
			expression_unbind(
				this.expr,
				this.model,
				this.parent,
				this.binder
			);
			this.parent = null;
			this.model = null;
			this.ctx = null;
		}

	dispose: function(){
		
		expression_unbind(
			this.expr || this.expression, this.model, this.parent, this.binder
		);
	}

 Component.attach(ctr, 'dispose', function(){
     expression_unbind(expr, model, ctr, binder);
 });

 unsubscribe(cb: Function) {
     super.unsubscribe(cb);
     if (this.cbs.length === 0) {
         expression_unbind(this.astNode, this.model, this.ctr, this.tick);
     }
 }