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Fix a wrong error message in 2024 edition#140056

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yuk1ty:fix-static-mut-error-message
Apr 28, 2025
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Fix a wrong error message in 2024 edition#140056
bors merged 1 commit intorust-lang:masterfrom
yuk1ty:fix-static-mut-error-message

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@yuk1ty yuk1ty commented Apr 20, 2025

Fixes #139952

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r? @jieyouxu

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Apr 20, 2025
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yuk1ty commented Apr 20, 2025
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tests/ui/lint/static-mut-refs.e2021.stderr Outdated
@@ -1,4 +1,4 @@
warning: creating a shared reference to mutable static is discouraged
warning: creating a shared reference to mutable static is not allowed
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@yuk1ty yuk1ty Apr 20, 2025 •
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I would like to ask if we should keep the error message as "discouraged" here (or other tests related to 2021 Edition) since my update will change the existing message in 2021 Edition 🤔 This is the first time to contribute the diagnostic issue, it would be nice if someone could tell me about the compatibility thing.

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The easy way is to reword this message to...

warning: creating a shared reference to mutable static

that way, it doesn't really matter if it's Edition 2021 / 2024.

The more complex way is to introduce different diagnostics between edition < 2024 and edition >= 2024, with edition 2021 wording being

warning: creating a shared reference to mutable static is discouraged

and edition 2024 wording being

error: creating a shared reference to mutable static is not allowed

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I agree that creating a shared reference to mutable static is better.

The warning: and error: will be enough information to let people know whether it's discouraged or not allowed.

("error" implies not being allowed and "warning" implies being discouraged)

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@yuk1ty yuk1ty Apr 23, 2025 •
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@jieyouxu @junderw Thank you for the comment. I will follow "creating a shared reference to mutable static" because from my quick investigation, the implementation is going to be really complexed (I think it's possible but) if we employ switching messages between 2021 and 2024.

@yuk1ty yuk1ty force-pushed the fix-static-mut-error-message branch from a8ec2f7 to 01eb091 Compare April 20, 2025 01:54
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@jieyouxu jieyouxu added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 21, 2025
@yuk1ty yuk1ty force-pushed the fix-static-mut-error-message branch from 01eb091 to 6daa8e9 Compare April 25, 2025 04:18
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@yuk1ty yuk1ty force-pushed the fix-static-mut-error-message branch from 6daa8e9 to bffb760 Compare April 26, 2025 05:50
@yuk1ty yuk1ty marked this pull request as ready for review April 26, 2025 11:41
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rustbot commented Apr 26, 2025

Some changes occurred in src/tools/clippy

cc @rust-lang/clippy

@yuk1ty yuk1ty requested a review from jieyouxu April 26, 2025 11:41
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Apr 26, 2025
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jieyouxu approved these changes Apr 28, 2025
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Thanks

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jieyouxu commented Apr 28, 2025

@bors r+ rollup

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bors commented Apr 28, 2025

📌 Commit bffb760 has been approved by jieyouxu

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 28, 2025
@GuillaumeGomez GuillaumeGomez mentioned this pull request Apr 28, 2025
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bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 28, 2025
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Auto merge of rust-lang#140388 - GuillaumeGomez:rollup-aj9o3ch, r=Gui…
6655f5c 
…llaumeGomez

Rollup of 7 pull requests

Successful merges:

 - rust-lang#140056 (Fix a wrong error message in 2024 edition)
 - rust-lang#140220 (Fix detection of main function if there are expressions around it)
 - rust-lang#140249 (Remove `weak` alias terminology)
 - rust-lang#140316 (Introduce `BoxMarker` to improve pretty-printing correctness)
 - rust-lang#140347 (ci: clean more disk space in codebuild)
 - rust-lang#140349 (ci: use aws codebuild for the `dist-x86_64-linux` job)
 - rust-lang#140379 (rustc-dev-guide subtree update)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 28, 2025
@bors
Auto merge of rust-lang#140388 - GuillaumeGomez:rollup-aj9o3ch, r=Gui…
25cdf1f 
…llaumeGomez

Rollup of 7 pull requests

Successful merges:

 - rust-lang#140056 (Fix a wrong error message in 2024 edition)
 - rust-lang#140220 (Fix detection of main function if there are expressions around it)
 - rust-lang#140249 (Remove `weak` alias terminology)
 - rust-lang#140316 (Introduce `BoxMarker` to improve pretty-printing correctness)
 - rust-lang#140347 (ci: clean more disk space in codebuild)
 - rust-lang#140349 (ci: use aws codebuild for the `dist-x86_64-linux` job)
 - rust-lang#140379 (rustc-dev-guide subtree update)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 1a766a8 into rust-lang:master Apr 28, 2025
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@rustbot rustbot added this to the 1.88.0 milestone Apr 28, 2025
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Apr 28, 2025
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Unrolled build for rust-lang#140056
d17b7f6 
Rollup merge of rust-lang#140056 - yuk1ty:fix-static-mut-error-message, r=jieyouxu

Fix a wrong error message in 2024 edition

Fixes rust-lang#139952
@yuk1ty yuk1ty mentioned this pull request Apr 29, 2025
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In edition 2024 error message "error: creating a shared reference to mutable static is discouraged" is wrong

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