Document ordering of DisplayFromStr invocation about serde_with

[jonasbb]

This is a recurring problem, but I am not aware how to build diagnostics into the macro or about the documentation. It is already mentioned in the README, on the first page of the crate documentation, in the #[serde_as] documentation, and in user guide under "Switching from serde’s with to serde_as".

Maybe these existing places can be improved. I am happy to hear feedback about them. I don't think explaining the Rust macro system belongs into the documentation for the DisplayFromStr type. Like this, every conversion type would need to duplicate this documentation.

[FlareFlo]

This is a recurring problem, but I am not aware how to build diagnostics into the macro or about the documentation. It is already mentioned in the README, on the first page of the crate documentation, in the #[serde_as] documentation, and in user guide under "Switching from serde’s with to serde_as".

Maybe these existing places can be improved. I am happy to hear feedback about them. I don't think explaining the Rust macro system belongs into the documentation for the DisplayFromStr type. Like this, every conversion type would need to duplicate this documentation.

I unfortunately directly jumped to the docs for DisplayFromStr, as i was recommended serde_as by a friend and did not consider such caveats as a possibility.

[jonasbb]

Since there is nothing action actionable right now, I close this. If you have suggestions on how to improve the existing places in the documentation, please let me know.