<?php

declare(strict_types=1);

namespace PHPJava\Kernel\Types;

class Int_ extends Type implements PrimitiveValueInterface

{

const DEFAULT_VALUE = 0;

protected $nameInJava = 'int';

protected $nameInPHP = 'integer';

const MIN = -2147483648;

const MAX = 2147483647;

public static function isValid($value): bool

{

if (!is_scalar($value)) {

return false;

}

if (ctype_alpha($value) && strlen((string) $value) === 1) {

$value = ord($value);

}

$value = ($value << 32) >> 32;

if (!ctype_digit((string) abs($value))) {

return false;

}

return $value >= static::MIN && $value <= static::MAX;

}

protected static function filter($value)

{

if (ctype_alpha($value) && strlen((string) $value) === 1) {

return ord($value);

}

return ($value << 32) >> 32;

}

}