Interaction between ChannelError and Select

[ytoh]

Hello!

I have built an abstraction that internally use Channels. I am now designing the exception handling for it. When I read from a single channel everything is clear, I can translate ChannelError to whatever I need and provide context of my abstraction.

Where I have a problem is when I use Select#select. In this case, when an error occurs I do not know from which channel it originates and I have to go through all of them to check whether I have the correct one.

Would it be possible to either expose the channel on ChannelClosed or allow some sort of metadata to be attached to a channel that would then be accessible on ChannelClosed? Or is there a better way of doing such a thing?

I am willing to work on it myself if you deem such a feature desirable.

Thanks

[adamw]

Yes, I think it's the same as #64?
If you could attempt a PR, I'll be happy to review.