Roses are red,
Violets are blue,
Happy new year,
full of happiness and cheer!
---
### The cat of this release is lizzy nominated by @jdonszelmann:
<img height=700
src="https://github.com/user-attachments/assets/612834d0-d584-4bf3-b11e-3564456c10ee"
alt="The cats of this Clippy release" />
Cats for the next release can be nominated in the comments :D
---
I've also updated the template to include the text I usually use for
moves, renames, or new lints.
changelog: none
---
That's it happy new year, kings, queens, and all other royalty! ❤️
Fixes#13692.
If the `vec!` macro call contains comments, we should not provide
suggestions and let users handle it however they see fit.
changelog: Only emit `useless_vec` suggestion if the macro does not
contain code comments
fixes: #4077
Continuation of #11546. r? @y21 if you don't mind?
changelog: [`needless_continue`] lint if the last stmt in loop is
`continue` recurisvely
This PR fixes two vulnerabilities in our CI, found with
[zizmor](https://github.com/woodruffw/zizmor). One could be exploited by
someone with tag-pushing permissions to execute arbitrary code in our CI
(see`deploy.yml`). The second vulnerability would expose our tokens to a
supply chain attack via a `build.rs` in one of the dependencies (See the
rest of the files, and https://github.com/actions/checkout/issues/485)
Pre-reviewed by @flip1995 in our DMs.
changelog:none
I [recently realized that `.last()` might not call `next_back()` when it
is
available](https://qsantos.fr/2025/01/01/rust-gotcha-last-on-doubleendediterator/).
Although the implementor could make sure to implement `last()` to do so,
this is not what will happen by default. As a result, I think it is
useful to add a lint to promote using `.next_back()` over `.last()` on
`DoubleEndedIterator`.
If this is merged, we might want to close #1822.
changelog: [`double_ended_iterator_last`]: Add lint for calling
`Iterator::last()` on `DoubleEndedIterator`
close#13781
The `slow_vector_initialization` lint currently only suggests using the
`vec!` macro with size, but it does not suggest removing the `resize`
method call.
changelog: [`slow_vector_initialization`]: improve
`slow_vector_initialization` suggestion
In this case, the lint can be triggered as well as `is_empty()` will be
found on the target type.
One such case was found in Clippy sources (first commit)
changelog: [`len_zero`]: trigger if deref target implements `is_empty()`
Close#13861
Using `lifetime.ident.name` in suggestions will not output the raw
modifier. For example, `'r#struct` will be rendered as `'struct` which
would be incorrect.
Fix#13899
changelog: [`needless_arbitrary_self_type`]: use the raw lifetime name
in suggestions
Proper parentheses need to be added to some expressions in receiver
position.
Fix#13902
changelog: [`redundant_pattern_matching`]: use proper parentheses when
suggesting replacing `matches!(…, None)` by `.is_none()`
I discovered that there were paths declared in `clippy_utils::paths` in
https://github.com/rust-lang/rust-clippy/pull/13829 so moving a few
remaining hardcoded ones in one place.
changelog: Move more def paths into `clippy_utils::paths`
r? @y21
Using `lifetime.ident.name` in suggestions will not output the raw
modifier. For example, `'r#struct` will be rendered as `'struct` which
would be incorrect.
Also, simplify boolean shortcut expression, and ensure that
applicability is properly applied, as it was ignored and
`MachineApplicable` was always used.
changelog: [`borrow_as_ptr`]: do not remove required parentheses in
autofix suggestion
Close#13882
This PR just makes sure that we exit the function before getting an ICE
and adds a regression test. Related to #12979. We would need to keep
researching the issue, but as the ICEing code isn't that complicated,
getting a hotfix into nightly is urgent.
changelog:[`borrow_interior_mutable_const`] Fix ICE #12979
Fixes#13862
`missing_headers::check` is sometimes called from outside of a body
(specifically, from `check_attributes`, where the LateContext's ParamEnv
is not yet properly initialized for that item). Using that empty
ParamEnv for trait solving things from within the body can then lead to
various ICEs, like the linked issue where we have a const generic
parameter `DMA_INST` without a `ConstArgHasType` bound in the ParamEnv
so the const parameter has no type, which is normally not supposed to
happen.
We have the item's DefId so we can just get its ParamEnv/TypingEnv from
there, and using that one for trait solving should be safe.
changelog: none
Convert the ICE reported in #12979 into a false negative.
We prefer a false negative to a ICE (because the ICE could
still affect the user even when not activating the lint).
Fixes#11846.
This PR has three commits:
- The first commit adds an `initializer-suggestions` configuration to
control suggestion applicability when initializers are present. The
following are the options:
- "none": do not suggest
- "maybe-incorrect": suggest, but do not apply suggestions with `--fix`
- "machine-applicable": suggest and apply suggestions with `--fix`
- The second commit fixes suggestions to handle field attributes
(problem [noticed by
@samueltardieu](https://github.com/rust-lang/rust-clippy/pull/13737#discussion_r1859261645)).
- The third commit adds `initializer-suggestions = "machine-applicable"`
to Clippy's `clippy.toml` and applies the suggestions. (Nothing seems to
break.)
---
changelog: make `inconsistent_struct_constructor` "all fields are
shorthand" requirement configurable
fix#13843
The `manual_div_ceil` lint makes incorrect suggestion when type suffixes
need to be made explicit in the suggested code.
changelog: [`manual_div_ceil`]: suggested code now includes appropriate
type suffixes where necessary
