error_chain + tokio_proto?

[mark-i-m]

Hey, I was wondering if it is possible to use error_chain with tokio_proto... It looks like std::io::Error is hard-coded in a lot of places.

For example, I was working through the tutorial, and I had this code (with the compile error mentioned at the bottom of that gist).

The problem is that even though my Error type is From<std::io::Error>, ServerProto requires std::io::Error itself, so their is a type mismatch. Interestingly, the streaming ServerProto does appear to have a From<std::io::Error> bound...

[lucab]

Bump, I think I'm hitting the same problem in ClientProto.

[mark-i-m]

I never ended up finding a solution... and then I got busy and forgot...