Using the flate2 crate with only AsyncRead/AsyncWrite

[TheNeikos]

Hello! I'm trying to use a tcp OwnedWriteHalf from tokio with flate2, but am unable to do so as it does not implement Write and instead only implements AsyncWrite.

Is there a way for me to still use this library? Since GzEncoder etc... all require Write but also implement AsyncWrite when the wrapped T does, it feels like that the Write bound is too restrictive.

Simple playground: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=b0c9dd53d0735d38f24e076a1469c9e0

[gkelly]

I think this comes from using the older AsyncRead/AsyncWrite definitions from tokio-io. In that crate they were extensions of Read/Write. But in more recent tokio they are not.

As @TheNeikos points out, this comes from the R: Read bound when using most of the ::new fns. This was always true in the past because of AsyncRead being historically Read.

[TheNeikos]

Ah, indeed in 2.0 it seems that the Write bound has been removed. Well, once it is updated to that, I can integrate this crate then 👍

[gkelly]

It looks like the plan might be to drop tokio support from this crate and have people depend on the async_compression crate for that instead: #214