Add new lint: `strlen_on_c_strings`
~~This is WIP, linting in case of `CString` has been added, but for `CStr`, its diagnostic item needs to be available for clippy.
[PR that adds diagnostic item for CStr on rust repo](https://github.com/rust-lang/rust/pull/85439).~~
Ready for the review. Please take a look.
fixes#7145
changelog: Add new lint: `strlen_on_c_strings`, that lints on `libc::strlen(some_cstring.as_ptr())`
Downgrade nonstandard_macro_braces to nursery
Due to the large number of crates impacted by #7422, I don't think this lint can be enabled by default right now until the false positive is fixed.
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changelog: remove [`nonstandard_macro_braces`] from default set of enabled lints
Don't suggest doc(hidden) or unstable variants in wildcard lint
Clippy's wildcard lint would suggest doc(hidden) and unstable variants for non_exhaustive enums, even though those aren't part of the public interface (yet) and should only be matched on using a `_`, just like potential future additions to the enum. There was already some logic to exclude a *single* doc(hidden) variant. This extends that to all hidden variants, and also hides `#[unstable]` variants.
See https://github.com/rust-lang/rust/pull/85746#issuecomment-868886893
This PR includes https://github.com/rust-lang/rust-clippy/pull/7406 as the first commit.
Here's the diff that this PR adds on top of that PR: https://github.com/m-ou-se/rust-clippy/compare/std-errorkind...m-ou-se:doc-hidden-variants
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*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: No longer suggest unstable and doc(hidden) variants in wildcard lint. wildcard_enum_match_arm, match_wildcard_for_single_variants
This fixes a bug where match_wildcard_for_single_variants produced a
bad suggestion where besides the missing variant, one or more hidden
variants were left.
This also adds tests to the ui-tests match_wildcard_for_single_variants
and wildcard_enum_match_arm to make sure that the correct suggestion is
produced.
New lint: `disallowed_script_idents`
This PR implements a new lint to restrict locales that can be used in the code,
as proposed in #7376.
Current concerns / unresolved questions:
- ~~Mixed usage of `script` (as a Unicode term) and `locale` (as something that is easier to understand for the broad audience). I'm not sure whether these terms are fully interchangeable and whether in the current form it is more confusing than helpful.~~ `script` is now used everywhere.
- ~~Having to mostly copy-paste `AllowedScript`. Probably it's not a big problem, as the list of scripts is standardized and is unlikely to change, and even if we'd stick to the `unicode_script::Script`, we'll still have to implement custom deserialization, and I don't think that it will be shorter in terms of the amount of LoC.~~ `unicode::Script` is used together with a filtering deserialize function.
- Should we stick to the list of "recommended scripts" from [UAX #31](http://www.unicode.org/reports/tr31/#Table_Recommended_Scripts) in the configuration?
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: ``[`disallowed_script_idents`]``
r? `@Manishearth`
Improve lint message for match-same-arms lint
fixes#7331
Follow-up to #7377
This PR improves the lint message for `match-same-arms` lint and adds `todo!(..)` example to the lint docs.
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: None
Stabilize `cargo clippy --fix`
This has been unstable since it was first introduced in
https://github.com/rust-lang/rust-clippy/pull/5363. In that time, I have
been using it successfully in nightly without issues. I don't think
there are any blocking issues now that RUSTC_WORKSPACE_WRAPPER is
stabilized, so this can be stabilized.
changelog: Stabilize `cargo clippy --fix`
Added `cargo dev setup vscode-tasks` for simplicity
This PR adds a setup command to `clippy dev` that installs tasks into the Clippy vscode workspace. These might be useful as they be used via shortcuts and are accessible over the GUI. The available tasks are:
* `cargo check` (standard Linux shortcut `[ctrl] + [shift] + b`)
* `cargo dev fmt`
* `cargo uitest` (with a comment how to add the `TESTNAME` environment value)
* `cargo test`
* `cargo dev bless`
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changelog: none
only internal changes again. cc #5394
r? `@flip1995` This should be pretty much the same as the other `cargo dev setup` commands. Would you mind reviewing this? 🙃
This has been unstable since it was first introduced in
https://github.com/rust-lang/rust-clippy/pull/5363. In that time, I have
been using it successfully in nightly without issues. I don't think
there are any blocking issues now that RUSTC_WORKSPACE_WRAPPER is
stabilized, so this can be stabilized.
Add suspicious group
changelog: Introduce `clippy::suspicious` 🤔 group and move several lints into the group
Closes#6366. CC #6626.
A number of lints are moved from each of `correctness`, `style` and `complexity` groups. Notably I didn't move `suspicious_splitn` since I think that is a `correctness` lint despite the name.
Lints moved to `clippy::suspicious`:
* `blanket_clippy_restriction_lints` (was `clippy::style`)
* `empty_loop` (was `clippy::style`)
* `eval_order_dependence` (was `clippy::complexity`)
* `float_equality_without_abs` (was `clippy::correctness`)
* `for_loops_over_fallibles` (was `clippy::correctness`)
* `misrefactored_assign_op` (was `clippy::complexity`)
* `mut_range_bound` (was `clippy::complexity`)
* `mutable_key_type` (was `clippy::correctness`)
* `suspicious_arithmetic_impl` (was `clippy::correctness`)
* `suspicious_assignment_formatting` (was `clippy::style`)
* `suspicious_else_formatting` (was `clippy::style`)
* `suspicious_map` (was `clippy::complexity`)
* `suspicious_op_assign_impl` (was `clippy::correctness`)
* `suspicious_unary_op_formatting` (was `clippy::style`)
Do not spawn blacklisted_name lint in test context
---
fixed#7305
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: `blacklisted_name` lint is not spawned in the test context anymore.
Fix detecting of the 'test' attribute
Update UI test to actually check that warning is not triggered in the test code
Fix approach for detecting the test module
Add nested test case
Remove code duplication by extracting 'is_test_module_or_function' into 'clippy_utils'
Cleanup the code
Added `cargo dev setup git-hook` and updated `cargo dev setup intellij` including a `remove` command
This PR enables our dev tool to install a git hook that formats the code before each commit and also runs `update_lints` to make sure that everything is registered correctly. The script is located at `util/etc/pre-commit.sh`. I found it reasonable to locate it in the `util` folder and decided to add a `etc` in correlation to the main rust repo and to bring a bit of structure into it.
* The hook can be installed via: `cargo dev setup git-hook`
* And removed via: `cargo dev remove git-hook`
cc: #5394
The refactoring of `src/ide_setup.rs` to `src/setup/intellij.rs` is an extra commit to simplify the review.
---
Changes:
* Added `cargo dev setup git-hook` for formatting before every commit
* Added `cargo dev remove git-hook` to remove the hook again
* Added `cargo dev remove intellij` to remove rustc source path dependencies
* Changed `cargo dev ide_setup` to `cargo dev setup intellij`
changelog: none
This is only an internal change and therefore not worth an entry in the general change log.
---
Tested on:
* [x] Linux (by `@xFrednet)`
* [ ] Windows (All used commands run inside the git bash, so it's very likely to work as well `@xFrednet)`
* [ ] macOS
