[−][src]Crate must_future
BoxFutures cannot be marked #[must_use]
because they are just type
definitions. This newtype struct wraps a BoxFuture with something that
can be marked #[must_use]
.
Will Not Compile:
ⓘThis example deliberately fails to compile
#![deny(unused_must_use)] use futures::future::FutureExt; #[tokio::main] async fn main() { fn get_future() -> must_future::MustBoxFuture<'static, ()> { async { }.boxed().into() } get_future(); // unused `must_future::MustBoxFuture` that must be used }
Structs
MustBoxFuture | BoxFutures cannot be marked must_use because they are just type definitions. This newtype struct wraps a BoxFuture with something that can be marked must_use. |
MustFuture | Wrap a future that may or may not be marked must_use with a newtype that is marked must_use. |