This commit changes the behavior of `single_match` lint.
After that, we won't lint non-exhaustive matches like this:
```rust
match Some(v) {
Some(a) => println!("${:?}", a),
None => {},
}
```
The rationale is that, because the type of `a` could be changed, so the
user can get non-exhaustive match after applying the suggested lint (see
https://github.com/rust-lang/rust-clippy/issues/8282#issuecomment-1013566068
for context).
We also will lint `match` constructions with tuples. When we see the
tuples on the both arms, we will check them both at the same time, and
if they form exhaustive match, we could display the warning.
Closes#8282
`manual_memcpy` fix
fixes#8160
Ideally this would work with `VecDeque`, but the current interface is unsuitable for it. At a minimum something like `range_as_slices` would be needed.
changelog: Don't lint `manual_memcpy` on `VecDeque`
changelog: Suggest `copy_from_slice` for `manual_memcpy` when applicable
Some test code cleanup
changelog: none
Mainly moves /clippy_workspace_tests into /tests and combines the two dogfood tests which can't run concurrently.
`README`: document that Clippy may change codegen
Currently, Clippy does not guarantee the same codegen will be produced.
Therefore, it should not be used as an universal replacement for `rustc`.
See https://github.com/rust-lang/rust-clippy/issues/8035.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
fixes#8035
changelog: document that Clippy may change codegen
Fix `deref_addrof`
fixes#8247
This would supersede #8259
changelog: Don't lint `deref_addrof` when the dereference and the borrow occur in different contexts
Improve documentation for `borrowed-box` lint
fixes#8161
Updates documentation to elaborate more on how removing Box from a function parameter can generalize the function.
changelog: none
The field is also renamed from `ident` to `name. In most cases,
we don't actually need the `Span`. A new `ident` method is added
to `VariantDef` and `FieldDef`, which constructs the full `Ident`
using `tcx.def_ident_span()`. This method is used in the cases
where we actually need an `Ident`.
This makes incremental compilation properly track changes
to the `Span`, without all of the invalidations caused by storing
a `Span` directly via an `Ident`.
Downgrade mutex_atomic to nursery
See #1516 and #4295.
There are suggestions about removing this lint from the default warned lints in both issues.
Also, [`mutex_integer`](https://rust-lang.github.io/rust-clippy/master/index.html#mutex_integer) lint that has the same problems as this lint is in `nursery` group.
changelog: Moved [`mutex_atomic`] to `nursery`
