[PATCH 4/4] panic_qr: use new #[export] macro

[Alice Ryhl]

On Thu, Feb 27, 2025 at 10:29 PM Boqun Feng <boqun.feng at gmail.com> wrote:
>
> On Thu, Feb 27, 2025 at 05:02:02PM +0000, Alice Ryhl wrote:
> > This validates at compile time that the signatures match what is in the
> > header file. It highlights one annoyance with the compile-time check,
> > which is that it can only be used with functions marked unsafe.
> >
> > If the function is not unsafe, then this error is emitted:
> >
> > error[E0308]: `if` and `else` have incompatible types
>
> Is there a way to improve this error message? I vaguely remember there
> are ways to do customized error message.

The if/else error message is super nice because it shows the two types
next to each other where it's very easy to read the signatures and
spot the difference. But if you want to investigate other constructs
that potentially have better error messages, feel free. I'm happy to
update if you find a better construct.

Alice