private function checkId($id)
{
if ($id == null) {
return;
}
$str = \blaze\lang\String::asNative($id);
if (strlen($str) == 0) {
throw new \blaze\lang\IllegalArgumentException('Component id must have a length of at least one character');
}
$firstChar = $str[0];
if ($firstChar != '_' && !\blaze\lang\Character::isLetter($firstChar)) {
throw new \blaze\lang\IllegalArgumentException('Component id\'s first character must be a letter or underscore (_) and not ' . $firstChar);
}
if (!preg_match('/^..[a-zA-Z0-9\\-\\_]*$/', $str)) {
throw new \blaze\lang\IllegalArgumentException('Component id\'s may only contain digits, letters, underscores(_) and dashes(-)');
}
}
