<?php
/*
* This file is part of the Prophecy.
* (c) Konstantin Kudryashov <ever.zet@gmail.com>
* Marcello Duarte <marcello.duarte@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Prophecy\Argument\Token;
/**
* Array elements count token.
*
* @author Boris Mikhaylov <kaguxmail@gmail.com>
*/
class ArrayCountToken implements TokenInterface
{
private $count;
/**
* @param integer $value
*/
public function __construct($value)
{
$this->count = $value;
}
/**
* Scores 6 when argument has preset number of elements.
*
* @param $argument
*
* @return bool|int
*/
public function scoreArgument($argument)
{
return $this->isCountable($argument) && $this->hasProperCount($argument) ? 6 : false;
}
/**
* Returns false.
*
* @return boolean
*/
public function isLast()
{
return false;
}
/**
* Returns string representation for token.
*
* @return string
*/
public function __toString()
{
return sprintf('count(%s)', $this->count);
}
/**
* Returns true if object is either array or instance of \Countable
*
* @param $argument
* @return bool
*/
private function isCountable($argument)
{
return (is_array($argument) || $argument instanceof \Countable);
}
/**
* Returns true if $argument has expected number of elements
*
* @param array|\Countable $argument
*
* @return bool
*/
private function hasProperCount($argument)
{
return $this->count === count($argument);
}
}