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tomaka avatar tomaka commented on June 5, 2024

Actually I just saw that there's impl<T, E> Future for Box<Future<Item=T, Error=E>> where T: Send + 'static, E: Send + 'static

I'm getting the following error:

src\main.rs:178:19: 178:25 error: the trait bound futures::Future<Item=std::opt ion::Option<Box<scene::Scene + Send>>, Error=Box<std::any::Any + Send>>: std::ma rker::Sized is not satisfied [E0277]
src\main.rs:178 new_scene.forget();
^~~~~~

Not sure why...

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tomaka avatar tomaka commented on June 5, 2024

futures::Future::forget(new_scene); instead of new_scene.forget() works. Not sure if it's some sort of weird behavior in Rust.

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alexcrichton avatar alexcrichton commented on June 5, 2024

Oh dear, that's odd! It's definitely intended to be able to call forget on Box<Future>. With the UFCS weirdness, I wonder if this is perhaps a compiler bug?

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tomaka avatar tomaka commented on June 5, 2024

Oh my bad. The problem is actually that the trait was not imported. There's still the problem that the error message doesn't say that at all, but at least it's a logical behavior.

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