104 lines
1.9 KiB
PHP
104 lines
1.9 KiB
PHP
<?php
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/*
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* This file is part of the php-code-coverage package.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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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 SebastianBergmann\CodeCoverage\Node;
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/**
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* Recursive iterator for node object graphs.
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*/
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class Iterator implements \RecursiveIterator
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{
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/**
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* @var int
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*/
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private $position;
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/**
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* @var AbstractNode[]
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*/
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private $nodes;
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/**
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* @param Directory $node
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*/
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public function __construct(Directory $node)
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{
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$this->nodes = $node->getChildNodes();
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}
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/**
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* Rewinds the Iterator to the first element.
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*/
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public function rewind()
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{
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$this->position = 0;
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}
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/**
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* Checks if there is a current element after calls to rewind() or next().
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*
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* @return bool
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*/
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public function valid()
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{
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return $this->position < count($this->nodes);
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}
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/**
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* Returns the key of the current element.
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*
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* @return int
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*/
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public function key()
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{
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return $this->position;
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}
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/**
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* Returns the current element.
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*
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* @return \PHPUnit_Framework_Test
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*/
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public function current()
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{
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return $this->valid() ? $this->nodes[$this->position] : null;
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}
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/**
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* Moves forward to next element.
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*/
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public function next()
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{
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$this->position++;
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}
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/**
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* Returns the sub iterator for the current element.
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*
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* @return Iterator
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*/
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public function getChildren()
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{
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return new self(
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$this->nodes[$this->position]
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);
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}
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/**
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* Checks whether the current element has children.
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*
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* @return bool
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*/
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public function hasChildren()
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{
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return $this->nodes[$this->position] instanceof Directory;
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}
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}
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