Method check

Compiler/instructions_base.py:949–955

(cls, arg)

    @classmethod
    def check(cls, arg):
        if not isinstance(arg, str):
            raise ArgumentError(arg, 'Argument is not string')
        if len(arg) > cls.length:
            raise ArgumentError(arg, 'String longer than %d' % cls.length)
        if '\0' in arg:
            raise ArgumentError(arg, 'String contains zero-byte')

    @classmethod
    def encode(cls, arg):