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27 lines
562 B
Python
27 lines
562 B
Python
2 years ago
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from __future__ import annotations
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from typing import Callable, Generic, TypeVar
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T = TypeVar("T")
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S = TypeVar("S")
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class Chain(Generic[T]):
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__value: T
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def __init__(self, start_value: T) -> None:
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super().__init__()
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self.__value = start_value
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def use(self, converter: Callable[[T], S]) -> Chain[S]:
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return Chain(converter(self.__value))
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# infix notation
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def __or__(self, converter: Callable[[T], S]) -> Chain[S]:
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return self.use(converter=converter)
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def get(self) -> T:
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return self.__value
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