[PATCH 1/2] rust: syn: make rust-analyzer treat `std` as a dependency

[PATCH 1/2] rust: syn: make rust-analyzer treat `std` as a dependency

[Jesung Yang]

Fix the `generate_rust_analyzer.py` script to ensure that the
`rust-project.json` it produces includes `std` in the `deps` field for
the `syn` crate.

`syn` directly references items from `std`, so rust-analyzer should
treat it as a dependency to provide correct IDE support.

For example, `syn::Punctuated` contains fields of type `Vec<..>` and
`Option<..>`, both of which come from the standard library prelude.
With `std` listed in the `deps` field, rust-analyzer can infer the types
of these fields instead of showing `{unknown}`.

Verified the explicit uses of `std` using:

    grep -rn 'std::' rust/syn/

Fixes: 737401751ace ("rust: syn: enable support in kbuild")
Signed-off-by: Jesung Yang <y.j3ms.n@gmail.com>
---
 scripts/generate_rust_analyzer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py
index 147d0cc94068..3b169904ee41 100755
--- a/scripts/generate_rust_analyzer.py
+++ b/scripts/generate_rust_analyzer.py
@@ -103,7 +103,7 @@ def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs, core_edit
     append_crate(
         "syn",
         srctree / "rust" / "syn" / "lib.rs",
-        ["proc_macro", "proc_macro2", "quote"],
+        ["std", "proc_macro", "proc_macro2", "quote"],
         cfg=crates_cfgs["syn"],
     )
 

base-commit: 54e3eae855629702c566bd2e130d9f40e7f35bde
-- 
2.47.3

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

[Jesung Yang]

Fix the `generate_rust_analyzer.py` script to ensure that the
`rust-project.json` it produces includes `core` and `std` in the `deps`
field for the `quote` crate.

`quote` directly references items from both `core` and `std`, so
rust-analyzer should treat them as dependencies to provide correct IDE
support.

For example, the `::quote::ToTokens` trait is implemented for
`std::ffi::CString`. With `std` listed in the `deps` field,
rust-analyzer can show the expected autocomplete for the
`::quote::ToTokens` methods on `std::ffi::CString`.

Verified the explicit uses of `core` and `std` using:

    grep -rnE 'core::|std::' rust/quote/

Fixes: 88de91cc1ce7 ("rust: quote: enable support in kbuild")
Signed-off-by: Jesung Yang <y.j3ms.n@gmail.com>
---
Unlike [PATCH 1/2], this change doesn't seem to offer a noticeable
benefit at the moment, but I've included it for completeness.
---
 scripts/generate_rust_analyzer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py
index 3b169904ee41..b8080febc4bd 100755
--- a/scripts/generate_rust_analyzer.py
+++ b/scripts/generate_rust_analyzer.py
@@ -96,7 +96,7 @@ def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs, core_edit
     append_crate(
         "quote",
         srctree / "rust" / "quote" / "lib.rs",
-        ["alloc", "proc_macro", "proc_macro2"],
+        ["core", "alloc", "std", "proc_macro", "proc_macro2"],
         cfg=crates_cfgs["quote"],
     )

--
2.47.3

Re: [PATCH 1/2] rust: syn: make rust-analyzer treat `std` as a dependency

[Miguel Ojeda]

On Tue, Nov 25, 2025 at 10:38 AM Jesung Yang <y.j3ms.n@gmail.com> wrote:
>
> Fix the `generate_rust_analyzer.py` script to ensure that the
> `rust-project.json` it produces includes `std` in the `deps` field for
> the `syn` crate.
>
> `syn` directly references items from `std`, so rust-analyzer should
> treat it as a dependency to provide correct IDE support.
>
> For example, `syn::Punctuated` contains fields of type `Vec<..>` and
> `Option<..>`, both of which come from the standard library prelude.
> With `std` listed in the `deps` field, rust-analyzer can infer the types
> of these fields instead of showing `{unknown}`.
>
> Verified the explicit uses of `std` using:
>
>     grep -rn 'std::' rust/syn/
>
> Fixes: 737401751ace ("rust: syn: enable support in kbuild")
> Signed-off-by: Jesung Yang <y.j3ms.n@gmail.com>

For something like this I am tempted to rebase, but given you took the
effort to write a nice commit message, I can apply them.

Let's see if someone else can confirm this works for them and gives a tag.

Thanks!

Cheers,
Miguel

Re: [PATCH 1/2] rust: syn: make rust-analyzer treat `std` as a dependency

[Jesung Yang]

On Wed, Nov 26, 2025 at 8:57 AM Miguel Ojeda
<miguel.ojeda.sandonis@gmail.com> wrote:
>
> For something like this I am tempted to rebase, but given you took the
> effort to write a nice commit message, I can apply them.

Feel free to rebase if that works better for you. I wrote those
messages just to provide enough context. Thanks for considering the
effort!

Best Regards,
Jesung