diff options
Diffstat (limited to 'slack/task.py')
| -rw-r--r-- | slack/task.py | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/slack/task.py b/slack/task.py index 6bcc70c..b812387 100644 --- a/slack/task.py +++ b/slack/task.py @@ -10,6 +10,7 @@ from typing import ( List, Optional, Sequence, + Set, Tuple, TypeVar, Union, @@ -29,6 +30,9 @@ if TYPE_CHECKING: T = TypeVar("T") +running_tasks: Set[Task[object]] = set() +failed_tasks: List[Tuple[Task[object], BaseException]] = [] + class CancelledError(Exception): pass @@ -47,6 +51,7 @@ class Future(Awaitable[T]): self._exception: Optional[BaseException] = None self._cancel_message = None self._callbacks: List[Callable[[Self], object]] = [] + self._exception_read = False def __repr__(self) -> str: return f"{self.__class__.__name__}('{self.id}')" @@ -132,8 +137,12 @@ class Future(Awaitable[T]): raise self._make_cancelled_error() elif not self.done(): raise InvalidStateError("Exception is not set.") + self._exception_read = True return self._exception + def exception_read(self): + return self._exception_read + class FutureProcess(Future[Tuple[str, int, str, str]]): pass @@ -177,9 +186,10 @@ def process_ended_task(task: Task[Any]): def task_runner(task: Task[Any]): + running_tasks.add(task) while True: if task.cancelled(): - return + break try: future = task.coroutine.send(None) except BaseException as e: @@ -187,14 +197,25 @@ def task_runner(task: Task[Any]): task.set_result(e.value) else: task.set_exception(e) + failed_tasks.append((task, e)) process_ended_task(task) - return + break if not future.done(): shared.active_tasks[future.id].append(task) shared.active_futures[future.id] = future break + running_tasks.remove(task) + if not running_tasks and not shared.active_tasks: + for task, exception in failed_tasks: + if not task.exception_read(): + print_error( + f"{task} was never awaited and failed with: " + f"{format_exception(exception)}" + ) + failed_tasks.clear() + def create_task(coroutine: Coroutine[Future[Any], Any, T]) -> Task[T]: task = Task(coroutine) |