firestar5683
30 lines
878 B
Python
30 lines
878 B
Python
from typing import Callable, Optional, TypeVar, Union, cast
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from reactivex import ConnectableObservable, Observable, abc
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from reactivex import operators as ops
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from reactivex.subject import BehaviorSubject
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from reactivex.typing import Mapper
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_T1 = TypeVar("_T1")
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_T2 = TypeVar("_T2")
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def publish_value_(
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initial_value: _T1,
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mapper: Optional[Mapper[Observable[_T1], Observable[_T2]]] = None,
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) -> Callable[[Observable[_T1]], Union[Observable[_T2], ConnectableObservable[_T1]]]:
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if mapper:
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def subject_factory(
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scheduler: Optional[abc.SchedulerBase] = None,
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) -> BehaviorSubject[_T1]:
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return BehaviorSubject(initial_value)
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return ops.multicast(subject_factory=subject_factory, mapper=mapper)
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subject = BehaviorSubject(cast(_T2, initial_value))
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return ops.multicast(subject)
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__all__ = ["publish_value_"]
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