IsNot.php
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IsNot.php
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	<?php
	namespace Hamcrest\Core;

	/*
	Copyright (c) 2009 hamcrest.org
	*/
	use Hamcrest\BaseMatcher;
	use Hamcrest\Description;
	use Hamcrest\Matcher;
	use Hamcrest\Util;

	/**
	* Calculates the logical negation of a matcher.
	*/
	class IsNot extends BaseMatcher
	{

	private $_matcher;

	public function __construct(Matcher $matcher)
	{
	$this->_matcher = $matcher;
	}

	public function matches($arg)
	{
	return !$this->_matcher->matches($arg);
	}

	public function describeTo(Description $description)
	{
	$description->appendText('not ')->appendDescriptionOf($this->_matcher);
	}

	/**
	* Matches if value does not match $value.
	*
	* @factory
	*/
	public static function not($value)
	{
	return new self(Util::wrapValueWithIsEqual($value));
	}
	}