builtup4/bu4/evaluation/constructs/edelayed.py

26 lines
716 B
Python

# Copyright (c) PARRRATE T&V 2021. All rights reserved.
from bu4.evaluation.av.envtype import envtype
from bu4.evaluation.constructs.eattachable import EAttachable
from bu4.evaluation.constructs.evaluable import Evaluable
from bu4.evaluation.constructs.evalue import EValue
from bu4.linking.constructs.linked import Linked
__all__ = ('EDelayed',)
class EDelayed(EValue):
def __init__(self, env: envtype, value: Linked):
self.env = env
self.value = value
self.evaluable = EAttachable(
self.env,
self.value
)
def call(self, argument: Evaluable) -> Evaluable:
return self.evaluable
def __str__(self):
return f'(()){self.value}'