Re: [PATCH] .gitignore: ignore rustc long type txt files

[Miguel Ojeda]

On Thu, May 21, 2026 at 12:29 PM Manos Pitsidianakis
<manos@xxxxxxxxxxxxxx> wrote:
>
> When rustc prints an error containing a long type that doesn't fit in a
> line, it will write the whole thing in a .txt file and print messages
> like:
>
>   note: the full type name has been written to
>   'path/to/subsystem/module_name.long-type-11621316855315349594.txt
>
> Long types like core::result::Result<core::pin::Pin<Box<_, Kmalloc,
> kernel::error::Error>: pin_init::PinInit<Box<_, Kmalloc>, _> are common
> during development, so add a gitignore entry.
>
> Signed-off-by: Manos Pitsidianakis <manos@xxxxxxxxxxxxxx>

Applied to `rust-next` -- thanks everyone!

    [ Depending on the compiler version and the kind of error, there are
      two possible spellings -- copying them here for reference:

          = note: the full name for the type has been written to
'...long-type-...txt'
          = note: the full type name has been written to '...long-type-...txt'

      In addition, we could clean the files as well in one of our
      cleaning Make targets [1][2].

      Another option would be `--verbose` (but it implies more things
      that we probably don't want) or `-Zwrite-long-types-to-disk=no`
      (unstable so far, but a possible alternative if we prefer to
      avoid the files and simply see the long types in the output
      -- I asked upstream Rust about it [3]).

      Link: https://lore.kernel.org/rust-for-linux/CANiq72=cKXdmxEacuGET8fuz_v5eFGB50vnOnKZZJd6iEeAAFA@xxxxxxxxxxxxxx/
[1]
      Link: https://github.com/Rust-for-Linux/linux/issues/1236 [2]
      Link: https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/.60-Zwrite-long-types-to-disk.3Dno.60/near/598310194
[3]

        - Miguel ]

    [ Moved the lines closer to the existing rust-analyzer one. - Miguel ]

Cheers,
Miguel