x/mobile/bind: support slices of supported structs

[scisci]

Just want to know if it will ever be possible to support slices of supported. I currently have to write a wrapper object around an array to pass it back and forth between IOS and Go.

[bradfitz]

/cc @crawshaw @hyangah

[hyangah]

It will not be impossible and eventually it should be supported. I don't know anyone who's currently working on this problem.

[dcu]

yeah this is the most frustrating issue for me right now

[weitzj]

Do you have any ideas when this will be done? What I could do?

I tried and failed using: https://golang.org/pkg/container/list/ as an alternative

[ioArchman]

+1
Would highly recommend this as currently falling short without this.

[mpiannucci]

This is stopping me from using gomobile in anything worthwhile at the moment

[ioArchman]

@scisci - If you don't mind can you please share across a gist on how you handle the problem currently as said? My requirement would be to return an array/slice of custom modal class objects with 4 string properties.

[scisci]

hi @ioArchman, I made a quick repo here:

https://github.com/scisci/go-mobile-collection

If you think it can work for you, you will probably want to fork it and modify the render.go function to add/remove the methods you want on your collection wrapper. Feel free to make a comment on the project if you have any questions. Its pretty directly adapted from another tutorial on go generics, which you can find here http://www.onebigfluke.com/2014/12/generic-programming-go-generate.html

Keep in mind, I don't consider this a good solution. It feels hacky working with a wrapper on the objective-c/swift side, but it does work. Really would prefer something that feels more natural.

[ioArchman]

Thanks @scisci. Will look into this and try utilizing for now. Agreed on your last point too.

[scisci]

hi @hyangah, do you have any hints on how this would be technically implemented in case someone wanted to attempt it from outside the gomobile team?

[anacrolix]

👍

[anacrolix]

This is very limiting.