<?php

class Mixin
{
	private $__map=array();

	public function __call($method, $params)
	{
		if(!isset($this->__map[$method]))
			throw new BadMethodCallException("$method not defined");

		return $this->__map[$method]->__invoke($params);
	}

	public function __set($param, $value)
	{
		if(!is_a($value, 'MixinMethod'))
			$value = new MixinMethod($value);

		$this->__map[$param] = $value;
	}

	public static function decorate($object)
	{

	}
}

class MixinMethod
{
	private $closure;

	public function __construct($closure)
	{
		$this->closure = $closure;
	}

	public function __invoke($params)
	{
		array_unshift($params, $this);
		return call_user_func_array($this->closure, $params);
	}
}

$mixin = new Mixin();
$mixin->blargh = function($self) {
	return 'llamas';
};

$cached = Mixin::decorate($mixin);
$cached->blargh = CachedMethod::build($cached->blargh)->expires('+2 days');

var_dump($mixin->blargh());