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Filename : CombinableMatcher.php
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<?php
namespace Hamcrest\Core;

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

use Hamcrest\BaseMatcher;
use Hamcrest\Description;
use Hamcrest\Matcher;

class CombinableMatcher extends BaseMatcher
{

    private $_matcher;

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

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

    public function describeTo(Description $description)
    {
        $description->appendDescriptionOf($this->_matcher);
    }

    /** Diversion from Hamcrest-Java... Logical "and" not permitted */
    public function andAlso(Matcher $other)
    {
        return new self(new AllOf($this->_templatedListWith($other)));
    }

    /** Diversion from Hamcrest-Java... Logical "or" not permitted */
    public function orElse(Matcher $other)
    {
        return new self(new AnyOf($this->_templatedListWith($other)));
    }

    /**
     * This is useful for fluently combining matchers that must both pass.
     * For example:
     * <pre>
     *   assertThat($string, both(containsString("a"))->andAlso(containsString("b")));
     * </pre>
     *
     * @factory
     */
    public static function both(Matcher $matcher)
    {
        return new self($matcher);
    }

    /**
     * This is useful for fluently combining matchers where either may pass,
     * for example:
     * <pre>
     *   assertThat($string, either(containsString("a"))->orElse(containsString("b")));
     * </pre>
     *
     * @factory
     */
    public static function either(Matcher $matcher)
    {
        return new self($matcher);
    }

    // -- Private Methods

    private function _templatedListWith(Matcher $other)
    {
        return array($this->_matcher, $other);
    }
}