async def apply(
self,
connection: ConnectionAPI) -> AsyncIterator[asyncio.Task[Any]]:
"""
See LogicAPI.apply()
The future returned here will be done when the first of the futures obtained from applying
all behaviors of this application is done.
"""
self.connection = connection
async with contextlib.AsyncExitStack() as stack:
futures: List[asyncio.Task[Any]] = []
# First apply all the child behaviors
for behavior in self._behaviors:
if behavior.should_apply_to(connection):
fut = await stack.enter_async_context(
behavior.apply(connection))
futures.append(fut)
# If none of our behaviors were applied, use a never-ending task so that callsites
# can wait on it like when behaviors are applied.
if not futures:
futures.append(
create_task(_never_ending_coro(),
f'Application/{self.name}/no-behaviors-fut'))
# Now register ourselves with the connection.
with connection.add_logic(self.name, self):
name = f'Application/{self.name}/apply/{connection.remote}'
yield create_task(wait_first(futures), name=name)
async def apply(self, connection: ConnectionAPI) -> AsyncIterator[None]:
self.connection = connection
async with contextlib.AsyncExitStack() as stack:
# First apply all the child behaviors
for behavior in self._behaviors:
if behavior.should_apply_to(connection):
await stack.enter_async_context(behavior.apply(connection))
# Now register ourselves with the connection.
with connection.add_logic(self.name, self):
yield