Improvement for `equatable_if_let`
fixes#9221
This PR makes sure that enums or structs not implementing `PartialEq` trait but still using the `if let` patterns can be linted to be rewritten with `matches!`.
If you added a new lint, here's a checklist for things that will be
checked during review or continuous integration.
- \[ ] Followed [lint naming conventions][lint_naming]
- \[x] Added passing UI tests (including committed `.stderr` file)
- \[x] `cargo test` passes locally
- \[ ] Executed `cargo dev update_lints`
- \[ ] Added lint documentation
- \[x] Run `cargo dev fmt`
---
changelog: Improve [`equatable_if_let`] with additional `matches!` suggestions.
fix: support `map_or` for `or_fun_call` lint
fixes https://github.com/rust-lang/rust-clippy/issues/8993
The methods defined in `KNOW_TYPES`, except for `map_or`, accepts only one argument, so the matching `if let [arg] = args` works only for these methods.
This PR adds `rest_arg` argument to `check_general_case` method and handling of cases with two arguments to support `map_or`.
changelog: `or_fun_call` support `map_or`
* add `rest_arg` to pass second argument from `map_or(U, F)`
* extract some procedures into closure
* add `rest_arg` to pass second argument from `map_or(U, F)`
* extract some procedures into closure
refac: rename rest_arg/second_arg
refac: organize function argument order
* put `second_arg` next to `arg` argument
Mark `let_underscore_lock` and `let_underscore_drop` as uplifted
Here I've renamed both the uplifted lints, however rustc's `let_underscore_lock` is slightly less capable than the clippy lint as it doesn't catch `parking_lot` types or `Result<Guard, ..>`, should we still remove it? The `Result` change looks like it was unintentional to me so that could probably be fixed upstream
changelog: Uplift [`let_underscore_drop`] to rustc https://github.com/rust-lang/rust/pull/97739
changelog: Remove overlap between rustc's `let_underscore_lock` and Clippy's [`let_underscore_lock`]
r? `@flip1995`
[`unwrap_used`], [`expect_used`] do not lint in `test` cfg
changelog: [`unwrap_used`], [`expect_used`] do not lint in `test` cfg
fix https://github.com/rust-lang/rust-clippy/issues/9612
I've updated the doc and used `cfg` acronym, not sure if `conditional compiler flag` would have been better
fix `box-default` ignoring trait objects' types
This avoids removing the turbofish when the `Box` type is a `dyn` or `impl _`.
This fixes#9621.
---
changelog: none
Move MSRV tests into the lint specific test files
There are currently two ways MSRV tests are done in the ui test suite, adding a case to the `#![clippy::msrv = "1.0"]` `tests/ui/min_rust_version_attr.rs` or adding the two `msrv_1_xx` functions to the test file of the lint in question
This updates the clippy book to suggest the `msrv_1_xx` style, and replaces the tests in `tests/ui/min_rust_version_attr.rs` with ones of that style
Almost the entire diff is just moving stuff around as a result, I made sure to check the line numbers the lints are emitted at correspond with the right `msrv` case, so feel free to only skim that part
changelog: none
Add `unused_format_specs` lint
Currently catches two cases:
An empty precision specifier:
```rust
// the same as {}
println!("{:.}", x);
```
And using formatting specs on `format_args!()`:
```rust
// prints `x.`, not `x .`
println("{:5}.", format_args!("x"));
```
changelog: new lint: [`unused_format_specs`]
[`unnecessary_cast`] Do not lint negative hexadecimal literals when cast as floats
fix https://github.com/rust-lang/rust-clippy/issues/9603
changelog: [`unnecessary_cast`] Do not lint negative hexadecimal literals when cast as floats
[`zero_prefixed_literal`] Do not advise to use octal form if not possible
fix https://github.com/rust-lang/rust-clippy/issues/9651
changelog: [`zero_prefixed_literal`] Do not advise to use octal form if not possible
Add new lint `partial_pub_fields`
Signed-off-by: TennyZhuang <zty0826@gmail.com>
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: `partial_pub_fields`: new lint to disallow partial fields of a struct be pub
Resolve#9604
Expand internal lint `unnecessary_def_path`
This PR does essentially two things:
* Separates the internal lints into modules by pass. (`internal_lints.rs` was over 1400 lines, which is a little unruly IMHO.)
* ~Adds a new~ Expands the `unnecessary_def_path` internal lint to flag hardcoded paths to diagnostic and language items.
My understanding is that the latter is currently done by reviewers. Automating this process should make things easier for both reviewers and contributors.
I could make the first bullet a separate PR, or remove it entirely, if desired.
changelog: Add internal lint `diagnostic_item_path`
Add a suggestion and a note about orphan rules for `from_over_into`
Adds a machine applicable suggestion to convert the `Into` impl into a `From` one to `from_over_into`
Also adds a note explaining that `impl From<Local> for Foreign` is fine if the `Into` type is foreign
Closes#7444
Addresses half of #9638
changelog: [`from_over_into`] Add a suggestion and a note about orphan rules
Fix edition revision ui tests
#9605 had me wondering how the edition revision tests were working for `manual_assert` but not for `@nyurik,` but it turns out `manual_assert`'s tests weren't working either. I checked how `rust-lang/rust` does it and apparently it comes down to whitespace, `//[rev] edition:X` works 😬
Removes the revisions from `match_wild_err_arm` as I couldn't find any edition dependant behaviour there
r? `@llogiq`
changelog: none
add tests in `implicit_saturating_sub` lint
This adds more tests to the `implicit_saturating_sub` lint to rule out certain false positives that have appeared in the past.
Now with those false positives out of the equation, we can move the lint to `style`.
---
changelog: promote [`implicit-saturating-sub`] to the `style` category
Fix to_string_in_format_args in parens
Fix suggestions like
```
print!("error: something failed at {}", (Location::caller().to_string()));
```
where the parenthesis enclose some portion of the value.
Fixes#9540
changelog: [`to_string_in_format_args`]: fix incorrect fix when value is enclosed in parenthesis
Fix suggestions like
```
print!("error: something failed at {}", (Location::caller().to_string()));
```
where the parenthesis enclose some portion of the value.
