builtup4/bu4/evaluation/constructs/edelayed.py
2021-09-09 08:16:01 +03:00

30 lines
857 B
Python

# Copyright (c) PARRRATE T&V 2021. All rights reserved.
from typing import TypeVar, Generic
from bu4.evaluation.constructs.attachable import Attachable
from bu4.evaluation.constructs.eattachable import EAttachable
from bu4.evaluation.constructs.evaluable import Evaluable
from bu4.evaluation.constructs.evalue import EValue
from bu4.evaluation.targets.avanonymouscontainer import AVAnonymousContainer
__all__ = ('EDelayed',)
T = TypeVar('T')
class EDelayed(EValue, Generic[T]):
def __init__(self, env: T, value: Attachable[T]):
self.env = env
self.value = value
self.evaluable = AVAnonymousContainer(EAttachable(
self.env,
self.value
)).after_value
def call(self, argument: Evaluable) -> Evaluable:
return self.evaluable
def __str__(self):
return f'&{self.value}'