no_std support

[rust-lang]

no_std support

[alexcrichton]

Oh whoa, awesome! I'm surprised you were able to get that far :)

Currently LIMITED isn't a "fundamental requirement" so it'd be easy to remove I think. I've debated in the past jettisoning it as it doesn't seem too useful any more anyway.

That being said I'm still worried about the Arc in Task for #![no_std] support. This ends up requiring nightly Rust for the alloc crate, as well as perhaps having inappropriate OOM behavior where the whole process would be aborted.

I'd be totally on board with pushing as far as we can towards no_std, though, so long as it doesn't end up hamstringing the std users!

[alexcrichton]

I have good news on this front, we've got an upcoming PR which should make the Future trait itself trivially #![no_std] compatible, so I'll post back here when that happens :)

[phil-opp]

That's great! I'm looking forward to it :)

[alexcrichton]

Ok, PR is here