skyzyx/php-strong-types

<?php
/**
 * Copyright (c) 2014-2016 Ryan Parman.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * http://opensource.org/licenses/MIT
 */

namespace Skyzyx\StrongTypes;

use \UnexpectedValueException;

class FloatType extends AbstractShape implements FloatInterface, SingleValueInterface
{
    /**
     * {@inheritdoc}
     */
    public function validate()
    {
        if ($this->value !== null && !is_float($this->value)) {
            throw new UnexpectedValueException(
                sprintf(self::TYPE_EXCEPTION_MESSAGE, get_called_class(), 'float', gettype($this->value))
            );
        }
    }

    /**
     * {@inheritdoc}
     */
    public function __toString()
    {
        return (string) $this->value;
    }
}