vendor/phpspec/prophecy/src/Prophecy/Promise/CallbackPromise.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Prophecy.
   5  * (c) Konstantin Kudryashov <ever.zet@gmail.com>
   6  *     Marcello Duarte <marcello.duarte@gmail.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Prophecy\Promise;
  13
  14 use Prophecy\Prophecy\ObjectProphecy;
  15 use Prophecy\Prophecy\MethodProphecy;
  16 use Prophecy\Exception\InvalidArgumentException;
  17 use Closure;
  18
  19 /**
  20  * Callback promise.
  21  *
  22  * @author Konstantin Kudryashov <ever.zet@gmail.com>
  23  */
  24 class CallbackPromise implements PromiseInterface
  25 {
  26     private $callback;
  27
  28     /**
  29      * Initializes callback promise.
  30      *
  31      * @param callable $callback Custom callback
  32      *
  33      * @throws \Prophecy\Exception\InvalidArgumentException
  34      */
  35     public function __construct($callback)
  36     {
  37         if (!is_callable($callback)) {
  38             throw new InvalidArgumentException(sprintf(
  39                 'Callable expected as an argument to CallbackPromise, but got %s.',
  40                 gettype($callback)
  41             ));
  42         }
  43
  44         $this->callback = $callback;
  45     }
  46
  47     /**
  48      * Evaluates promise callback.
  49      *
  50      * @param array          $args
  51      * @param ObjectProphecy $object
  52      * @param MethodProphecy $method
  53      *
  54      * @return mixed
  55      */
  56     public function execute(array $args, ObjectProphecy $object, MethodProphecy $method)
  57     {
  58         $callback = $this->callback;
  59
  60         if ($callback instanceof Closure && method_exists('Closure', 'bind')) {
  61             $callback = Closure::bind($callback, $object);
  62         }
  63
  64         return call_user_func($callback, $args, $object, $method);
  65     }
  66 }