silverstripe-framework/tests/php/Core/Injector/AopProxyServiceTest/BeforeAfterCallTestAspect.php

<?php

namespace SilverStripe\Core\Tests\Injector\AopProxyServiceTest;

use SilverStripe\Core\Injector\BeforeCallAspect;
use SilverStripe\Core\Injector\AfterCallAspect;

class BeforeAfterCallTestAspect implements BeforeCallAspect, AfterCallAspect
{
    public $block = false;

    public $called;

    public $alternateReturn;

    public $modifier;

    public function beforeCall($proxied, $method, $args, &$alternateReturn)
    {
        $this->called = $method;

        if ($this->block) {
            if ($this->alternateReturn) {
                $alternateReturn = $this->alternateReturn;
            }
            return false;
        }
    }

    public function afterCall($proxied, $method, $args, $result)
    {
        if ($this->modifier) {
            $modifier = $this->modifier;
            return $modifier($result);
        }
    }
}