private function assertInteger($integer, $throwable = null)
{
$throwable = ThrowableUtilities::validateAndNormalizeThrowable($throwable, new Exception\InvalidArgumentException('Argument must be an integer'));
if (!is_int($integer)) {
throw $throwable;
}
}
private function assertNotNull($notNull, $throwable = null)
{
$throwable = ThrowableUtilities::validateAndNormalizeThrowable($throwable, new Exception\InvalidArgumentException('Argument must not be null'));
if ($notNull === null) {
throw $throwable;
}
}
private function assertNotEmpty($notEmpty, $throwable = null)
{
$throwable = ThrowableUtilities::validateAndNormalizeThrowable($throwable, new Exception\InvalidArgumentException('Argument must not be empty'));
if (empty($notEmpty)) {
throw $throwable;
}
}
private function assertScalar($scalar, $throwable = null)
{
$throwable = ThrowableUtilities::validateAndNormalizeThrowable($throwable, new Exception\InvalidArgumentException('Argument must be a scalar value'));
if (!is_scalar($scalar)) {
throw $throwable;
}
}
private function assertNumeric($numeric, $throwable = null)
{
$throwable = ThrowableUtilities::validateAndNormalizeThrowable($throwable, new Exception\InvalidArgumentException('Argument must be numeric'));
if (!is_numeric($numeric)) {
throw $throwable;
}
}
private function assertString($string, $throwable = null, $allowObjects = true)
{
$throwable = ThrowableUtilities::validateAndNormalizeThrowable($throwable, new Exception\InvalidArgumentException('Argument must be a string'));
if ($allowObjects && is_object($string) && method_exists($string, '__toString')) {
return;
}
if (!is_string($string)) {
throw $throwable;
}
}
