42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
# Copyright (c) PARRRATE T&V 2021. All rights reserved.
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from bu4.encoding.codes import CODE_MAKE
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from bu4.evaluation.constructs.evaluable import Evaluable
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from bu4.indexing.constructs.indexed import Indexed
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from bu4.indexing.evaluation.eilambda import EILambda
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from bu4.indexing.evaluation.eivtype import eivtype
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from bu4.transform.states.aftertransform import AfterTransform
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from bu4.transform.states.transformfinished import TransformFinished
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from bu4.transform.states.transformstart import TransformStart
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from bu4.transform.states.transformstate import TransformState
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from bu4.transform.targets.atlambda import ATLambda
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__all__ = ('ILambda',)
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class ILambda(Indexed):
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def __init__(self, value: Indexed, table: list[int], *, memoize: bool):
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self.value = value
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self.table = table
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self.memoize = memoize
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def attach(self, ev: eivtype) -> Evaluable:
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return EILambda(
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[ev[i] for i in self.table],
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self.value,
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memoize=self.memoize
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)
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def __str__(self):
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return f'(0){self.value}'
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def bytes(self) -> TransformState[bytes]:
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return AfterTransform(
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TransformStart(lambda: self.value.bytes()),
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ATLambda(
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lambda value: TransformFinished(
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bytes([CODE_MAKE, self.memoize, len(self.table), *self.table, *value])
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)
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)
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)
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