Method set_pre_await_callback

src/textual/await_complete.py:38–47

Set a callback to run prior to awaiting. This is used by Textual, mainly to check for possible deadlocks. You are unlikely to need to call this method in an app. Args: pre_await: A callback.

(self, pre_await: CallbackType | None)

        yield "caller", self._caller, None

    def set_pre_await_callback(self, pre_await: CallbackType | None) -> None:
        """Set a callback to run prior to awaiting.

        This is used by Textual, mainly to check for possible deadlocks.
        You are unlikely to need to call this method in an app.

        Args:
            pre_await: A callback.
        """
        self._pre_await = pre_await

    def call_next(self, node: MessagePump) -> Self:
        """Await after the next message.