[arithmetic-side-effects] Do not ignore literal references
To my utter surprise, `rustc` does does not warn stuff like `let n: u8 = &255 + &1` or `let n: u8 = 255 + &1`.
changelog: [arithmetic-side-effects] Do not ignore literal references
fallout: fix tests to allow uninlined_format_args
In order to switch `clippy::uninlined_format_args` from pedantic to style, all existing tests must not raise a warning. I did not want to change the actual tests, so this is a relatively minor change that:
* add `#![allow(clippy::uninlined_format_args)]` where needed
* normalizes all allow/deny/warn attributes
* all allow attributes are grouped together
* sorted alphabetically
* the `clippy::*` attributes are listed separate from the other ones.
* deny and warn attributes are listed before the allowed ones
See also https://github.com/rust-lang/rust-clippy/pull/9233, https://github.com/rust-lang/rust-clippy/pull/9525, https://github.com/rust-lang/rust-clippy/pull/9527
cc: `@llogiq` `@Alexendoo`
changelog: none
new `implicit_saturating_add` lint
This fixes#9393
If you added a new lint, here's a checklist for things that will be
checked during review or continuous integration.
- \[x] Followed [lint naming conventions][lint_naming]
- \[x] Added passing UI tests (including committed `.stderr` file)
- \[x] `cargo test` passes locally
- \[x] Executed `cargo dev update_lints`
- \[x] Added lint documentation
- \[x] Run `cargo dev fmt`
---
changelog: add [`manual_saturating_add`] lint
let `upper_case_acronyms` check the enum name
Signed-off-by: TennyZhuang <zty0826@gmail.com>
Fix#9579
changelog: [`upper_case_acronyms`]: check the enum name
Replace `expr_visitor` with `for_each_expr`
This is a minor change which uses `ControlFlow` rather than a boolean. This also runs the visitor rather than returning the visitor, which results in a small readability win as well.
changelog: None
Fix and improve `match_type_on_diagnostic_item`
This extracts the fix for the lint out of #7647. There's still a couple of other functions to check, but at least this will get lint working again.
The two added util functions (`is_diagnostic_item` and `is_lang_item`) are needed to handle `DefId` for unit and tuple struct/variant constructors. The `rustc_diagnostic_item` and `lang` attributes are attached to the struct/variant `DefId`, but most of the time they are used through their constructors which have a different `DefId`. The two utility functions will check if the `DefId` is for a constructor and switch to the associated struct/variant `DefId`.
There does seem to be a bug on rustc's side where constructor `DefId`s from external crates seem to be returning `DefKind::Variant` instead of `DefKind::Ctor()`. There's a workaround put in right.
changelog: None
In order to switch `clippy::uninlined_format_args` from pedantic to
style, all existing tests must not raise a warning. I did not want to
change the actual tests, so this is a relatively minor change that:
* add `#![allow(clippy::uninlined_format_args)]` where needed
* normalizes all allow/deny/warn attributes
* all allow attributes are grouped together
* sorted alphabetically
* the `clippy::*` attributes are listed separate from the other ones.
* deny and warn attributes are listed before the allowed ones
changelog: none
Remove unused `.fixed` files, only run asm_syntax doctests on x86
Two small changes, removes some unused `.fixed` and makes `clippy_lints` doctests pass on non x86 arches
changelog: none
* Check for `const`s and `static`s from external crates
* Check for `LangItem`s
* Handle inherent functions which have the same name as a field
* Also check the following functions:
* `match_trait_method`
* `match_def_path`
* `is_expr_path_def_path`
* `is_qpath_def_path`
* Handle checking for a constructor to a diagnostic item or `LangItem`
let unnecessary_cast work for trivial non_literal expressions
Signed-off-by: TennyZhuang <zty0826@gmail.com>
---
changelog: [`unnecessary_cast`]: fix for trivial non_literal expressions
Fixes#9562
[`unnecessary_cast`] add parenthesis when negative number uses a method
fix#9563
The issue was probably introduced by 90fe3bea52
changelog: [`unnecessary_cast`] add parenthesis when negative number uses a method
r? llogiq
use `is_integer_literal` more
I noticed that we have the `is_integer_literal` function in our `clippy_utils`, yet almost everywhere people still match int literal expressions manually. So I searched for instances to replace and shorten the code a bit.
---
changelog: none
lint nested patterns and slice patterns in `needless_borrowed_reference`
Now lints in positions other than top level, e.g. `Some(&ref a)`. Or patterns are excluded as that can cause issues
Slice patterns of `ref`s are now linted, e.g. `&[ref a, ref b]`. An easy one to walk into as you might expect that to match against a slice you should use `&[]`, then to get around a `cannot move out of type [T]` error you apply a `ref`
changelog: [`needless_borrowed_reference`]: lint nested patterns and slice patterns
Fix sorting in ` cargo dev update_lints` script
changelog: none
The old code cloned and sorted `usable_lints` into `sorted_usable_lints`, but then failed to do anything with `sorted_usable_lints`.
This was discovered by my new `collection_is_never_read` lint (#9267) that I'm working on!
Fix: I renamed the sorted vector to `usable_lints`. Therefore it now gets used where the unsorted one was used previously.
Implement `manual_clamp` lint
Fixes#9477Fixes#6751
Identifies common patterns where usage of the `clamp` function would be more succinct and clear, and suggests using the `clamp` function instead.
changelog: [`manual_clamp`]: Implement manual_clamp lint
This lint detects calls to a `&self`-taking `as_ptr` method, where
the result is then immediately cast to a `*mut T`. Code like this
is probably invalid, as that pointer will not have write permissions,
and `*mut T` is usually used to write through.
