Файл: gapps/vendor/hamcrest/hamcrest-php/hamcrest/Hamcrest/Collection/IsEmptyTraversable.php
Строк: 39
<?php
namespace HamcrestCollection;
/*
Copyright (c) 2009 hamcrest.org
*/
use HamcrestBaseMatcher;
use HamcrestDescription;
/**
* Matches if traversable is empty or non-empty.
*/
class IsEmptyTraversable extends BaseMatcher
{
private static $_INSTANCE;
private static $_NOT_INSTANCE;
private $_empty;
public function __construct($empty = true)
{
$this->_empty = $empty;
}
public function matches($item)
{
if (!$item instanceof Traversable) {
return false;
}
foreach ($item as $value) {
return !$this->_empty;
}
return $this->_empty;
}
public function describeTo(Description $description)
{
$description->appendText($this->_empty ? 'an empty traversable' : 'a non-empty traversable');
}
/**
* Returns true if traversable is empty.
*
* @factory
*/
public static function emptyTraversable()
{
if (!self::$_INSTANCE) {
self::$_INSTANCE = new self;
}
return self::$_INSTANCE;
}
/**
* Returns true if traversable is not empty.
*
* @factory
*/
public static function nonEmptyTraversable()
{
if (!self::$_NOT_INSTANCE) {
self::$_NOT_INSTANCE = new self(false);
}
return self::$_NOT_INSTANCE;
}
}