builtup4/bu4/parsing/extensions/xnull.py

16 lines
542 B
Python

# Copyright (c) PARRRATE T&V 2021. All rights reserved.
from bu4.parsing.codes import CODE_NULL
from bu4.parsing.constructs.parsed import Parsed
from bu4.parsing.constructs.pnull import PNull
from bu4.parsing.extensions.extension import Extension
from bu4.transform.states.transformfinished import TransformFinished
from bu4.transform.states.transformstate import TransformState
__all__ = ('XNull',)
class XNull(Extension[Parsed], code=CODE_NULL):
def apply(self) -> TransformState[Parsed]:
return TransformFinished(PNull())