> Another solution would be to implement Zeroable for __BindgenBitfieldUnit in > bindings.rs, but this is much nicer! It works even with old Rust versions > and, even though it needs manual implementation of the trait each type, it > doesn't require enumerating the fields one by one. So it's better than the > current version of Zeroable and, if you wish, you can also replace existing > implementations of Zeroable with const_zero.
I'm working on this, and it's just a simple patch. But I'm not sure why Zeroable needs a Default constraint. I think Sized seems to be enough, doesn't it? Thanks, Zhao
