1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
from typing import Callable, Optional, Set, TypeVar
from reactivex import Observable, abc
_T = TypeVar("_T")
def to_set_() -> Callable[[Observable[_T]], Observable[Set[_T]]]:
"""Converts the observable sequence to a set.
Returns an observable sequence with a single value of a set
containing the values from the observable sequence.
"""
def to_set(source: Observable[_T]) -> Observable[Set[_T]]:
def subscribe(
observer: abc.ObserverBase[Set[_T]],
scheduler: Optional[abc.SchedulerBase] = None,
) -> abc.DisposableBase:
s: Set[_T] = set()
def on_completed() -> None:
nonlocal s
observer.on_next(s)
s = set()
observer.on_completed()
return source.subscribe(
s.add, observer.on_error, on_completed, scheduler=scheduler
)
return Observable(subscribe)
return to_set
__all__ = ["to_set_"]
|
