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from typing import Callable, Optional, TypeVar
from reactivex import Observable, abc
from reactivex.internal import ArgumentOutOfRangeException
_T = TypeVar("_T")
def skip_(count: int) -> Callable[[Observable[_T]], Observable[_T]]:
if count < 0:
raise ArgumentOutOfRangeException()
def skip(source: Observable[_T]) -> Observable[_T]:
"""The skip operator.
Bypasses a specified number of elements in an observable sequence
and then returns the remaining elements.
Args:
source: The source observable.
Returns:
An observable sequence that contains the elements that occur
after the specified index in the input sequence.
"""
def subscribe(
observer: abc.ObserverBase[_T],
scheduler: Optional[abc.SchedulerBase] = None,
):
remaining = count
def on_next(value: _T) -> None:
nonlocal remaining
if remaining <= 0:
observer.on_next(value)
else:
remaining -= 1
return source.subscribe(
on_next, observer.on_error, observer.on_completed, scheduler=scheduler
)
return Observable(subscribe)
return skip
__all__ = ["skip_"]
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