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Fix invalid check-cfg Cargo feature diagnostic help #119425

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merged 2 commits into from Dec 30, 2023

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Urgau
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@Urgau Urgau commented Dec 30, 2023

#118213 added specialized diagnostic for Cargo feature cfg. However when providing an empty #[cfg(feature)] condition the suggestion would suggest adding feature as a feature in Cargo.toml (wtf!).

This PR removes the invalid logic, which even brings a nice improvement.

   --> $DIR/cargo-feature.rs:18:7
    |
 LL | #[cfg(feature)]
-   |       ^^^^^^^
+   |       ^^^^^^^- help: specify a config value: `= "bitcode"`
    |
    = note: expected values for `feature` are: `bitcode`
-   = help: consider defining `feature` as feature in `Cargo.toml`

The first commit add a test showing the bug and the second commit fixes the bug.

@rustbot label +F-check-cfg

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rustbot commented Dec 30, 2023

r? @compiler-errors

(rustbot has picked a reviewer for you, use r? to override)

@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. F-check-cfg --check-cfg labels Dec 30, 2023
@@ -804,8 +804,6 @@ pub trait LintContext {
db.span_suggestion(value_span, "there is a expected value with a similar name", format!("\"{best_match}\""), Applicability::MaybeIncorrect);

}
} else if name == sym::feature && is_from_cargo {
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unrelated comment, but I feel like all of this logic should be moved to a separate module instead of being in this big match

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I've put up #119443 to address this suggestion

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r=me when CI is happy
@bors delegate+

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bors commented Dec 30, 2023

✌️ @Urgau, you can now approve this pull request!

If @Nilstrieb told you to "r=me" after making some further change, please make that change, then do @bors r=@Nilstrieb

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Urgau commented Dec 30, 2023

@bors r=@Nilstrieb

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bors commented Dec 30, 2023

📌 Commit a25e023 has been approved by Nilstrieb

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 Dec 30, 2023
bors added a commit to rust-lang-ci/rust that referenced this pull request Dec 30, 2023
…iaskrgr

Rollup of 5 pull requests

Successful merges:

 - rust-lang#119158 (Clean up alloc::sync::Weak Clone implementation)
 - rust-lang#119386 (fix typo in `IpAddr::to_canonical`)
 - rust-lang#119413 (solaris support on bootstrap lock)
 - rust-lang#119424 (Primitive docs: fix confusing `Send` in `&T`'s list)
 - rust-lang#119425 (Fix invalid check-cfg Cargo feature diagnostic help)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit e930ea2 into rust-lang:master Dec 30, 2023
11 checks passed
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Dec 30, 2023
Rollup merge of rust-lang#119425 - Urgau:check-cfg-fix-cargo-diag-bug, r=Nilstrieb

Fix invalid check-cfg Cargo feature diagnostic help

rust-lang#118213 added specialized diagnostic for Cargo `feature` cfg. However when providing an empty `#[cfg(feature)]` condition the suggestion would suggest adding `feature` as a feature in `Cargo.toml` (wtf!).

This PR removes the invalid logic, which even brings a nice improvement.

```diff
   --> $DIR/cargo-feature.rs:18:7
    |
 LL | #[cfg(feature)]
-   |       ^^^^^^^
+   |       ^^^^^^^- help: specify a config value: `= "bitcode"`
    |
    = note: expected values for `feature` are: `bitcode`
-   = help: consider defining `feature` as feature in `Cargo.toml`
```

The first commit add a test showing the bug and the second commit fixes the bug.

`@rustbot` label +F-check-cfg
@rustbot rustbot added this to the 1.77.0 milestone Dec 30, 2023
@Urgau Urgau deleted the check-cfg-fix-cargo-diag-bug branch December 30, 2023 13:44
bors added a commit to rust-lang-ci/rust that referenced this pull request Dec 30, 2023
…xt, r=Nilstrieb

Move around the code responsible for decorating builtin diagnostics

This PR move the code responsible for decorating builtin diagnostics into a separate sub-module for ease of use and readability.

While my original intention was to also move the check-cfg unexpected logic in their own function I changed my mind after moving the match altogether. I can move those if desired.

Fixes rust-lang#119425 (comment)

r? `@Nilstrieb`
bors added a commit to rust-lang-ci/rust that referenced this pull request Dec 30, 2023
…xt, r=Nilstrieb

Move around the code responsible for decorating builtin diagnostics

This PR move the code responsible for decorating builtin diagnostics into a separate sub-module for ease of use and readability.

While my original intention was to also move the check-cfg unexpected logic in their own function I changed my mind after moving the match altogether. I can move those if desired.

Fixes rust-lang#119425 (comment)

r? `@Nilstrieb`
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