MatchingOnce.php
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MatchingOnce.php
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	<?php
	namespace Hamcrest\Arrays;

	/*
	Copyright (c) 2009 hamcrest.org
	*/

	use Hamcrest\Description;

	class MatchingOnce
	{

	private $_elementMatchers;
	private $_mismatchDescription;

	public function __construct(array $elementMatchers, Description $mismatchDescription)
	{
	$this->_elementMatchers = $elementMatchers;
	$this->_mismatchDescription = $mismatchDescription;
	}

	public function matches($item)
	{
	return $this->_isNotSurplus($item) && $this->_isMatched($item);
	}

	public function isFinished($items)
	{
	if (empty($this->_elementMatchers)) {
	return true;
	}

	$this->_mismatchDescription
	->appendText('No item matches: ')->appendList('', ', ', '', $this->_elementMatchers)
	->appendText(' in ')->appendValueList('[', ', ', ']', $items)
	;

	return false;
	}

	// -- Private Methods

	private function _isNotSurplus($item)
	{
	if (empty($this->_elementMatchers)) {
	$this->_mismatchDescription->appendText('Not matched: ')->appendValue($item);

	return false;
	}

	return true;
	}

	private function _isMatched($item)
	{
	/** @var $matcher \Hamcrest\Matcher */
	foreach ($this->_elementMatchers as $i => $matcher) {
	if ($matcher->matches($item)) {
	unset($this->_elementMatchers[$i]);

	return true;
	}
	}

	$this->_mismatchDescription->appendText('Not matched: ')->appendValue($item);

	return false;
	}
	}