Compatibility with serde about safer_ffi HOT 2 CLOSED

Thanks for reporting it. The problem lies in:

which is basically the code for the "raw" variant / aspect of the ReprC struct (since ReprC defines a mapping from the higher-level Rust type to a raw #[repr(C)] version of it with no safety invariants attached to it).

And from the code there (modulo macro readability), we can see this raw variant only gets its doc comments forwarded, but not the other ones (because it shouldn't be necessary to have other macros applied to that raw variant, and as we can see here, forwarding macros to things that are not the originally written struct can cause problems).

And the oversight here is that the field attributes are still forwarded!

So not-forwarding the latter ought to fix the issue. I don't have time to make sure this fix won't cause breakage elsewhere (misinteraction between multiple macros is very common and with edge cases everywhere), so I won't merge the PR and make an official release with it yet. But you should be able to use that version using a Cargo [patch]:

[patch.crates-io.safer-ffi]
version = "0.0.5"
git = "https://github.com/getditto/safer_ffi"
branch = "fix/derive_repr_c_and_other_macros"

from safer_ffi.

Amazing, so fast you are!

Thanks. Will try ASAP.

from safer_ffi.