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<?php /* * This file is part of the Prophecy. * (c) Konstantin Kudryashov <ever.zet@gmail.com> * Marcello Duarte <marcello.duarte@gmail.com> * * 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; /** * Traversable interface patch. * Forces classes that implement interfaces, that extend Traversable to also implement Iterator. * * @author Konstantin Kudryashov <ever.zet@gmail.com> */ 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'); $node->addMethod(new MethodNode('current')); $node->addMethod(new MethodNode('key')); $node->addMethod(new MethodNode('next')); $node->addMethod(new MethodNode('rewind')); $node->addMethod(new MethodNode('valid')); } /** * Returns patch priority, which determines when patch will be applied. * * @return int Priority number (higher - earlier) */ public function getPriority() { return 100; } }