84 lines
2.3 KiB
PHP
84 lines
2.3 KiB
PHP
<?php
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/*
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* This file is part of the Prophecy.
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* (c) Konstantin Kudryashov <ever.zet@gmail.com>
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* Marcello Duarte <marcello.duarte@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Prophecy\Doubler\ClassPatch;
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use Prophecy\Doubler\Generator\Node\ClassNode;
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use Prophecy\Doubler\Generator\Node\MethodNode;
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/**
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* Traversable interface patch.
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* Forces classes that implement interfaces, that extend Traversable to also implement Iterator.
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*
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* @author Konstantin Kudryashov <ever.zet@gmail.com>
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*/
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class TraversablePatch implements ClassPatchInterface
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{
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/**
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* Supports nodetree, that implement Traversable, but not Iterator or IteratorAggregate.
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*
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* @param ClassNode $node
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*
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* @return bool
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*/
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public function supports(ClassNode $node)
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{
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if (in_array('Iterator', $node->getInterfaces())) {
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return false;
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}
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if (in_array('IteratorAggregate', $node->getInterfaces())) {
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return false;
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}
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foreach ($node->getInterfaces() as $interface) {
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if ('Traversable' !== $interface && !is_subclass_of($interface, 'Traversable')) {
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continue;
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}
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if ('Iterator' === $interface || is_subclass_of($interface, 'Iterator')) {
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continue;
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}
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if ('IteratorAggregate' === $interface || is_subclass_of($interface, 'IteratorAggregate')) {
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continue;
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}
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return true;
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}
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return false;
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}
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/**
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* Forces class to implement Iterator interface.
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*
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* @param ClassNode $node
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*/
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public function apply(ClassNode $node)
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{
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$node->addInterface('Iterator');
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$node->addMethod(new MethodNode('current'));
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$node->addMethod(new MethodNode('key'));
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$node->addMethod(new MethodNode('next'));
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$node->addMethod(new MethodNode('rewind'));
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$node->addMethod(new MethodNode('valid'));
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}
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/**
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* Returns patch priority, which determines when patch will be applied.
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*
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* @return int Priority number (higher - earlier)
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*/
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public function getPriority()
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{
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return 100;
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}
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}
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