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firestar5683
38 lines
996 B
Python
38 lines
996 B
Python
from typing import Callable, Optional, Set, TypeVar
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from reactivex import Observable, abc
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_T = TypeVar("_T")
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def to_set_() -> Callable[[Observable[_T]], Observable[Set[_T]]]:
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"""Converts the observable sequence to a set.
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Returns an observable sequence with a single value of a set
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containing the values from the observable sequence.
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"""
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def to_set(source: Observable[_T]) -> Observable[Set[_T]]:
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def subscribe(
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observer: abc.ObserverBase[Set[_T]],
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scheduler: Optional[abc.SchedulerBase] = None,
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) -> abc.DisposableBase:
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s: Set[_T] = set()
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def on_completed() -> None:
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nonlocal s
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observer.on_next(s)
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s = set()
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observer.on_completed()
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return source.subscribe(
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s.add, observer.on_error, on_completed, scheduler=scheduler
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)
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return Observable(subscribe)
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return to_set
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__all__ = ["to_set_"]
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