#  Copyright (c) PARRRATE T&V 2021. All rights reserved.

from bu4.linking.constructs.linked import Linked
from bu4.linking.constructs.lname import LName
from bu4.linkable.constructs.parsed import Parsed
from bu4.transform.states.transformfinished import TransformFinished
from bu4.transform.states.transformstate import TransformState

__all__ = ('PName',)


class PName(Parsed):
    def __init__(self, name: bytes):
        self.name = name

    def link(self, promise: set[bytes]) -> TransformState[Linked]:
        assert self.name in promise, f'undefined: {self.name}'
        return TransformFinished(LName(self.name))