Add `disallowed_macros` lint
Closes#7790Fixes#9558
`clippy_utils::def_path_res` already resolved macro definitions which is nice, it just needed a tweak to be able to disambiguate e.g. `std::vec` the module & `std::vec` the macro, and `serde::Serialize` the trait & `serde::Serialize` the derive macro
changelog: new lint: [`disallowed_macros`]
changelog: [`disallowed_methods`], [`disallowed_types`]: Fix false negative when a type/fn/macro share the same path
[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
avoid doc-link-with-quotes in code blocks
This fixes#8961 by moving the lint into the docs code, thus being able to re-use the pulldown-cmark parser and simplifying the code.
---
changelog: none
rustc_tool_utils: bump version in anticipation of a new release
cc https://github.com/rust-lang/rust-clippy/issues/9553
After this is merged, I will publish the 0.2.1 version to crates.io, and make another PR that switches clippy to use the dependency from crates.io.
The source can still be kept in the clippy repo though imo.
This will allow miri and clippy to "share" the crate in the rustc repo once they both depend on it.
reopen of #9561
changelog: release `rustc_tools_util` on `Crates.io`.
