ApproximateValueToken.php

<?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;


/**
 * Approximate value token
 *
 * @author Daniel Leech <daniel@dantleech.com>
 */
class ApproximateValueToken implements TokenInterface {
    private $value;
    private $precision;
    
    /**
     * @param float $value
     * @param int $precision
     */
    public function __construct($value, $precision = 0) {
        $this->value = $value;
        $this->precision = $precision;
    }
    
    /**
     * {@inheritdoc}
     */
    public function scoreArgument($argument) {
        if (!\is_float($argument) && !\is_int($argument) && !\is_numeric($argument)) {
            return false;
        }
        return round((double) $argument, $this->precision) === round($this->value, $this->precision) ? 10 : false;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isLast() {
        return false;
    }
    
    /**
     * Returns string representation for token.
     *
     * @return string
     */
    public function __toString() {
        return sprintf('≅%s', round($this->value, $this->precision));
    }

}