x/mobile/cmd/gomobile: gomobile bind returning io.Reader errors

[garry415]

I'm running into an error when running "gomobile bind --target=ios":
gomobile: type io.Reader not defined in package package goax ("github.com/garry415/goax")

unsupported, direct named type github.com/garry415/goax.KeyExchange: struct{IdentityPublic []byte "bencode:"identity""; Dh []byte "bencode:"dh""; Dh1 []byte "bencode:"dh1""}

I'm importing "io" and KeyExchange has only private fields. I don't think it should report this error.

Environment: Go 1.5, OS X Yosemite 10.10.4

[crawshaw]

That first error is surprising. If you try with the go tool, does your package compile?

The second error is an existing limit of gobind. It can work on *KeyExchange, but not KeyExchange. (We are considering support for the latter, but there's a lot to do and few of us to do it.)

[garry415]

it compiles under go build, just not under gomobile bind. here's a gist of what fails: https://gist.github.com/garry415/bd83a3693bf03dbd5438

[mehlon]

It seems the error is because you're using an external type, doing something like this works: https://gist.github.com/mehlon/233261a982d81bfbf5de.