[pjmlp]

I guess one way would be via delegation, similar to how COM does it.

I bet with a couple of macros it would be possible to automate what languages on Windows can somehow do magically with COM interfaces.

[estebank]

You don't need any macros, it can be accomplished with the trait system[1], either manually or through auto-deref. Some of the boilerplate could be generalized with a derive proc-macro or a macro-by-example call but it is not absolutely necessary.

[1]: https://play.rust-lang.org/?version=stable&mode=debug&editio...

[ldiracdelta]

Thank you so much for this.