summaryrefslogtreecommitdiff
path: root/vendor/phpspec/prophecy/src/Prophecy/Doubler/ClassPatch/TraversablePatch.php
blob: 0e2e04700e78fd8403926769fcee2198620d4e52 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
<?php

/*
 * This file is part of the Prophecy.
 * (c) Konstantin Kudryashov <[email protected]>
 *     Marcello Duarte <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Prophecy\Doubler\ClassPatch;

use Prophecy\Doubler\Generator\Node\ClassNode;
use Prophecy\Doubler\Generator\Node\MethodNode;
use Prophecy\Doubler\Generator\Node\ReturnTypeNode;

/**
 * Traversable interface patch.
 * Forces classes that implement interfaces, that extend Traversable to also implement Iterator.
 *
 * @author Konstantin Kudryashov <[email protected]>
 */
class TraversablePatch implements ClassPatchInterface
{
    /**
     * Supports nodetree, that implement Traversable, but not Iterator or IteratorAggregate.
     *
     * @param ClassNode $node
     *
     * @return bool
     */
    public function supports(ClassNode $node)
    {
        if (in_array('Iterator', $node->getInterfaces())) {
            return false;
        }
        if (in_array('IteratorAggregate', $node->getInterfaces())) {
            return false;
        }

        foreach ($node->getInterfaces() as $interface) {
            if ('Traversable' !== $interface && !is_subclass_of($interface, 'Traversable')) {
                continue;
            }
            if ('Iterator' === $interface || is_subclass_of($interface, 'Iterator')) {
                continue;
            }
            if ('IteratorAggregate' === $interface || is_subclass_of($interface, 'IteratorAggregate')) {
                continue;
            }

            return true;
        }

        return false;
    }

    /**
     * Forces class to implement Iterator interface.
     *
     * @param ClassNode $node
     */
    public function apply(ClassNode $node)
    {
        $node->addInterface('Iterator');

        $currentMethod = new MethodNode('current');
        (\PHP_VERSION_ID >= 80100) && $currentMethod->setReturnTypeNode(new ReturnTypeNode('mixed'));
        $node->addMethod($currentMethod);

        $keyMethod = new MethodNode('key');
        (\PHP_VERSION_ID >= 80100) && $keyMethod->setReturnTypeNode(new ReturnTypeNode('mixed'));
        $node->addMethod($keyMethod);

        $nextMethod = new MethodNode('next');
        (\PHP_VERSION_ID >= 80100) && $nextMethod->setReturnTypeNode(new ReturnTypeNode('void'));
        $node->addMethod($nextMethod);

        $rewindMethod = new MethodNode('rewind');
        (\PHP_VERSION_ID >= 80100) && $rewindMethod->setReturnTypeNode(new ReturnTypeNode('void'));
        $node->addMethod($rewindMethod);

        $validMethod = new MethodNode('valid');
        (\PHP_VERSION_ID >= 80100) && $validMethod->setReturnTypeNode(new ReturnTypeNode('bool'));
        $node->addMethod($validMethod);
    }

    /**
     * Returns patch priority, which determines when patch will be applied.
     *
     * @return int Priority number (higher - earlier)
     */
    public function getPriority()
    {
        return 100;
    }
}