Re: [PATCH 2/2] rust: quote: make rust-analyzer treat `core` and `std` as dependencies

From: Tamir Duberstein
Date: Mon Jan 05 2026 - 10:42:32 EST


On Mon, Jan 5, 2026 at 9:06 AM Miguel Ojeda
<miguel.ojeda.sandonis@xxxxxxxxx> wrote:
>
> On Mon, Jan 5, 2026 at 1:12 PM Jesung Yang <y.j3ms.n@xxxxxxxxx> wrote:
> >
> > IIUC, to remove `std`, we need to patch our vendored `syn` as well to
> > not depend on `std`, right? I think it is indeed a desired change.
> >
> > If you don't mind, I'm happy to patch the vendored `syn` along with
> > this series if the team agrees. Alternatively, if you'd prefer to send
> > the patch yourself, please let me know.
>
> What are the advantages/disadvantages of doing so? Performance in rust-analyzer?
>
> In general, I would prefer to avoid patching vendored dependencies,
> but if there is an advantage, then I think it is fine to have small
> changes as long as upstream has merged their PR (i.e. so that we at
> least know there is a good chance we will eventually get the same
> change when we upgrade the dependency).
>
> Thanks!
>
> Cheers,
> Miguel

Yeah, I wouldn't rush to patch the vendored copy. We could just
knowingly give up on the IDE support in this tiny corner (assuming
upstream takes my patch). FWIW the only degradation here is that RA
wouldn't see the ToTokens impls for CStr and CString.