/vendor/phpspec/prophecy/src/Prophecy/Promise/ThrowPromise.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
12namespace Prophecy\Promise;
13
14use Doctrine\Instantiator\Instantiator;
15use Prophecy\Prophecy\ObjectProphecy;
16use Prophecy\Prophecy\MethodProphecy;
17use Prophecy\Exception\InvalidArgumentException;
18use ReflectionClass;
19
20/**
21 * Throw promise.
22 *
23 * @author Konstantin Kudryashov <ever.zet@gmail.com>
24 */
25class ThrowPromise implements PromiseInterface
26{
27    private $exception;
28
29    /**
30     * @var \Doctrine\Instantiator\Instantiator
31     */
32    private $instantiator;
33
34    /**
35     * Initializes promise.
36     *
37     * @param string|\Exception|\Throwable $exception Exception class name or instance
38     *
39     * @throws \Prophecy\Exception\InvalidArgumentException
40     */
41    public function __construct($exception)
42    {
43        if (is_string($exception)) {
44            if (!class_exists($exception) || !$this->isAValidThrowable($exception)) {
45                throw new InvalidArgumentException(sprintf(
46                    'Exception / Throwable class or instance expected as argument to ThrowPromise, but got %s.',
47                    $exception
48                ));
49            }
50        } elseif (!$exception instanceof \Exception && !$exception instanceof \Throwable) {
51            throw new InvalidArgumentException(sprintf(
52                'Exception / Throwable class or instance expected as argument to ThrowPromise, but got %s.',
53                is_object($exception) ? get_class($exception) : gettype($exception)
54            ));
55        }
56
57        $this->exception = $exception;
58    }
59
60    /**
61     * Throws predefined exception.
62     *
63     * @param array          $args
64     * @param ObjectProphecy $object
65     * @param MethodProphecy $method
66     *
67     * @throws object
68     */
69    public function execute(array $args, ObjectProphecy $object, MethodProphecy $method)
70    {
71        if (is_string($this->exception)) {
72            $classname   = $this->exception;
73            $reflection  = new ReflectionClass($classname);
74            $constructor = $reflection->getConstructor();
75
76            if ($constructor->isPublic() && 0 == $constructor->getNumberOfRequiredParameters()) {
77                throw $reflection->newInstance();
78            }
79
80            if (!$this->instantiator) {
81                $this->instantiator = new Instantiator();
82            }
83
84            throw $this->instantiator->instantiate($classname);
85        }
86
87        throw $this->exception;
88    }
89
90    /**
91     * @param string $exception
92     *
93     * @return bool
94     */
95    private function isAValidThrowable($exception)
96    {
97        return is_a($exception, 'Exception', true) || is_subclass_of($exception, 'Throwable', true);
98    }
99}