Commit graph

11186 commits

Author SHA1 Message Date
Catherine
0c392d918a new lint legacy_numeric_constants 2024-03-21 17:10:02 -06:00
Philipp Krones
0e62b18435 Merge commit '9d6f41691ed9dbfaec2a2df2661c42451f2fe0d3' into clippy-subtree-update 2024-03-21 22:20:40 +01:00
Kevin Reid
15da6e735a
Mention size_hint() effect in flat_map_option lint documentation. 2024-03-21 14:06:45 -07:00
Philipp Krones
e1d15b5b87
Bump Clippy version -> 0.1.79 2024-03-21 22:06:41 +01:00
Philipp Krones
7d42d736c5
Merge remote-tracking branch 'upstream/master' into rustup 2024-03-21 22:05:29 +01:00
Rua
238cd36671 Fix documentation typo "appects" > "affects" 2024-03-21 18:22:23 +01:00
Michael Goulet
bc0965e2ff Implement macro-based deref!() syntax for deref patterns
Stop using `box PAT` syntax for deref patterns, as it's misleading and
also causes their semantics being tangled up.
2024-03-21 11:42:49 -04:00
Manish Goregaokar
87b93520a8
Correct version for incompatible_msrv
Unsure what happened here

Probably what caused https://github.com/rust-lang/blog.rust-lang.org/issues/1277
2024-03-21 15:41:12 +00:00
Matthias Krüger
fb1b198cea Rollup merge of #122799 - estebank:issue-122569, r=fee1-dead
Replace closures with `_` when suggesting fully qualified path for method call

```
error[E0283]: type annotations needed
  --> $DIR/into-inference-needs-type.rs:12:10
   |
LL |         .into()?;
   |          ^^^^
   |
   = note: cannot satisfy `_: From<...>`
   = note: required for `FilterMap<...>` to implement `Into<_>`
help: try using a fully qualified path to specify the expected types
   |
LL ~     let list = <FilterMap<Map<std::slice::Iter<'_, &str>, _>, _> as Into<T>>::into(vec
LL |         .iter()
LL |         .map(|s| s.strip_prefix("t"))
LL ~         .filter_map(Option::Some))?;
   |
```

Fix #122569.
2024-03-21 12:05:08 +01:00
bors
e8794ff541 Auto merge of #121123 - compiler-errors:item-assumptions, r=oli-obk
Split an item bounds and an item's super predicates

This is the moral equivalent of #107614, but instead for predicates this applies to **item bounds**. This PR splits out the item bounds (i.e. *all* predicates that are assumed to hold for the alias) from the item *super predicates*, which are the subset of item bounds which share the same self type as the alias.

## Why?

Much like #107614, there are places in the compiler where we *only* care about super-predicates, and considering predicates that possibly don't have anything to do with the alias is problematic. This includes things like closure signature inference (which is at its core searching for `Self: Fn(..)` style bounds), but also lints like `#[must_use]`, error reporting for aliases, computing type outlives predicates.

Even in cases where considering all of the `item_bounds` doesn't lead to bugs, unnecessarily considering irrelevant bounds does lead to a regression (#121121) due to doing extra work in the solver.

## Example 1 - Trait Aliases

This is best explored via an example:

```
type TAIT<T> = impl TraitAlias<T>;

trait TraitAlias<T> = A + B where T: C;
```

The item bounds list for `Tait<T>` will include:
* `Tait<T>: A`
* `Tait<T>: B`
* `T: C`

While `item_super_predicates` query will include just the first two predicates.

Side-note: You may wonder why `T: C` is included in the item bounds for `TAIT`? This is because when we elaborate `TraitAlias<T>`, we will also elaborate all the predicates on the trait.

## Example 2 - Associated Type Bounds

```
type TAIT<T> = impl Iterator<Item: A>;
```

The `item_bounds` list for `TAIT<T>` will include:
* `Tait<T>: Iterator`
* `<Tait<T> as Iterator>::Item: A`

But the `item_super_predicates` will just include the first bound, since that's the only bound that is relevant to the *alias* itself.

## So what

This leads to some diagnostics duplication just like #107614, but none of it will be user-facing. We only see it in the UI test suite because we explicitly disable diagnostic deduplication.

Regarding naming, I went with `super_predicates` kind of arbitrarily; this can easily be changed, but I'd consider better names as long as we don't block this PR in perpetuity.
2024-03-21 06:12:24 +00:00
Esteban Küber
9022122b8b Replace closures with _ when suggesting fully qualified path for method call
```
error[E0283]: type annotations needed
  --> $DIR/into-inference-needs-type.rs:12:10
   |
LL |         .into()?;
   |          ^^^^
   |
   = note: cannot satisfy `_: From<...>`
   = note: required for `FilterMap<...>` to implement `Into<_>`
help: try using a fully qualified path to specify the expected types
   |
LL ~     let list = <FilterMap<Map<std::slice::Iter<'_, &str>, _>, _> as Into<T>>::into(vec
LL |         .iter()
LL |         .map(|s| s.strip_prefix("t"))
LL ~         .filter_map(Option::Some))?;
   |
```

Fix #122569.
2024-03-21 00:07:44 +00:00
bors
a16a9ed4c6 Auto merge of #12509 - xFrednet:changelog-1-77, r=dswij
Changelog for Clippy 1.77 🏫

Roses are violets,
Red is blue,
Let's create a world,
Perfect for me and you

---

### The cat of this release is: *Luigi*

<img width=500 src="https://github.com/rust-lang/rust-clippy/assets/17087237/ea13d05c-e5ba-4189-9e16-49bf1b43c468" alt="The cats of this Clippy release" />

The cat for the next release can be voted on: [here](https://forms.gle/57gbrNvXtCUmrHYh6)

The cat for the next next release can be nominated in the comments and will be voted in the next changelog PR (Submission deadline is 2024-03-30 23:59CET)

---

changelog: none
2024-03-20 23:43:14 +00:00
bors
34766a6792 Auto merge of #12496 - Jacherr:issue-12492, r=blyxyas
Disable `cast_lossless` when casting to u128 from any (u)int type

Fixes https://github.com/rust-lang/rust-clippy/issues/12492

Disables `cast_lossless` when casting to u128 from any int or uint type. The lint states that when casting to any int type, there can potentially be lossy behaviour if the source type ever exceeds the size of the destination type in the future, which is impossible with a destination of u128.

It's possible this is a bit of a niche edge case which is better addressed by just disabling the lint in code, but I personally couldn't think of any good reason to still lint in this specific case - maybe except if the source is a bool, for readability reasons :).

changelog: FP: `cast_lossless`: disable lint when casting to u128 from any (u)int type
2024-03-20 23:08:45 +00:00
bors
5b7efe827f Auto merge of #12516 - humannum14916:assigning_clones_msrv, r=Alexendoo
Make `assigning_clones` MSRV check more precise

Continuation of #12511

`clone_into` is the only suggestion subject to the 1.63 MSRV requirement, and the lint should still emit other suggestions regardless of the MSRV.

changelog: [assigning_clones]: only apply MSRV check to `clone_into` suggestions.
2024-03-20 20:41:41 +00:00
humannum14916
5f7b3c5eea Only enforce MSRV check on .clone_into() suggestions 2024-03-20 14:04:12 -04:00
Michael Goulet
1dbabc1767 Bless test fallout (duplicate diagnostics) 2024-03-20 13:00:34 -04:00
Guillaume Gomez
54d1260174 Rename hir::Let into hir::LetExpr 2024-03-20 16:47:11 +01:00
Jacherr
477108d382 FP: cast_lossless: disable lint when casting to (u)128 from any (u)int type 2024-03-20 13:20:51 +00:00
bors
89aba8d45d Auto merge of #12511 - humannum14916:assigning_clones_msrv, r=Alexendoo
`assigning_clones` should respect MSRV

Fixes: #12502

This PR fixes the `assigning_clones` lint suggesting to use `clone_from` or `clone_into` on incompatible MSRVs.

`assigning_clones` will suggest using either `clone_from` or `clone_into`, both of which were stabilized in 1.63. If the current MSRV is below 1.63, the lint should not trigger.

changelog: [`assigning_clones`]: don't lint when the MSRV is below 1.63.
2024-03-19 23:46:51 +00:00
humannum14916
21a97f0192 Specify an MSRV of 1.63.0 for assigning_clones 2024-03-19 17:05:32 -04:00
goodmost
e7c3e049f8 chore: fix typo
Signed-off-by: goodmost <zhaohaiyang@outlook.com>
2024-03-19 22:09:05 +08:00
bors
56288a72be Auto merge of #122021 - oli-obk:delangitemification, r=compiler-errors
Use hir::Node helper methods instead of repeating the same impl multiple times

I wanted to do something entirely different and stumbled upon a bunch of cleanups
2024-03-19 11:05:45 +00:00
y21
3930f8b45d fix infinite loop when peeling unwrap method calls 2024-03-19 00:13:18 +01:00
xFrednet
83af0e5928
Update version attribute for 1.77 lints 2024-03-18 22:59:52 +01:00
Oli Scherer
0dc876991c Deduplicate associated_body and body_id
They match on almost the same patterns, which is fishy.

Also turn `associated_body` into a method and do some cleanups nearby the call sites
2024-03-18 18:12:32 +00:00
Oli Scherer
003c4bc7bf Avoid various uses of Option<Span> in favor of using DUMMY_SP in the few cases that used None 2024-03-18 09:34:08 +00:00
bors
b5dcaae844 Auto merge of #12498 - y21:issue12489, r=blyxyas
[`map_entry`]: call the visitor on the local's `else` block

Fixes #12489

The lint already has all the logic it needs for figuring out if it can or can't suggest a closure if it sees control flow expressions like `break` or `continue`, but it was ignoring the local's else block, which meant that it didn't see the `return None;` in a `let..else`.

changelog: [`map_entry`]: suggest `if let` instead of a closure when `return` expressions exist in the else block of a `let..else`
2024-03-18 06:28:47 +00:00
bors
e9a50f2859 Auto merge of #12451 - Jacherr:issue-12391, r=llogiq
new restriction lint: `integer_division_remainder_used`

Fixes https://github.com/rust-lang/rust-clippy/issues/12391

Introduces a restriction lint which disallows the use of `/` and `%` operators on any `Int` or `Uint` types (i.e., any that use the default `Div` or `Rem` trait implementations). Custom implementations of these traits are ignored.

----

changelog: Add new restriction lint [`integer_division_remainder_used`]
2024-03-17 08:10:32 +00:00
bors
d202eb653b Auto merge of #12450 - cookie-s:fix-optopt-duplicate-diags, r=llogiq
[`option_option`]: Fix duplicate diagnostics

Relates to #12379

This `option_option` lint change skips checks against `ty`s inside `field_def`s defined by external macro to prevent duplicate diagnostics to the same span `ty` by multiple `Struct` definitions.

---

changelog: [`option_option`]: Fix duplicate diagnostics
2024-03-17 07:51:49 +00:00
bors
67fa36a9f2 Auto merge of #12479 - y21:readonly_write_lock_perf, r=Jarcho
move `readonly_write_lock` to perf

[There haven't been any issues](https://github.com/rust-lang/rust-clippy/issues?q=is%3Aissue+readonly_write_lock) since its creation and it's a pretty useful lint I think, so I'd say it's worth giving it a try?

Did a lintcheck run on 300 crates with no results, but I guess `RwLock` is usually not something that's used much in libraries.

changelog: move [`readonly_write_lock`] to perf (now warn-by-default)
2024-03-17 03:35:17 +00:00
bors
12ecaa8367 Auto merge of #12482 - J-ZhengLi:issue12131, r=Jarcho
fix [`dbg_macro`] FN when dbg is inside some complex macros

fixes: #12131

It appears that [`root_macro_call_first_node`] only detects `println!` in the following example:
```rust
println!("{:?}", dbg!(s));
```
---

changelog: fix [`dbg_macro`] FN when `dbg` is inside some complex macros

(re-opening b'cuz bors doesn't like my previous one)
2024-03-17 03:22:20 +00:00
bors
59a5ad4840 Auto merge of #12441 - CBSpeir:dedup-else-if-without-else, r=dswij
[`else_if_without_else`]: Fix duplicate diagnostics

Relates to: #12379

changelog:  Fix duplicate lint diagnostic emission from [`else_if_without_else`]
2024-03-16 15:55:11 +00:00
y21
4e72ca31b5 [map_entry]: call the visitor on the local's else block 2024-03-16 14:15:45 +01:00
kcz
9408c5974e
[option_option]: Use span.from_expansion 2024-03-15 21:25:24 -04:00
Guillaume Gomez
79766577f2 Add missing_transmute_annotation lint 2024-03-15 20:31:51 +01:00
bors
c9f24827b3 Auto merge of #12493 - y21:issue12491, r=Alexendoo
fix span calculation for non-ascii in `needless_return`

Fixes #12491

Probably fixes #12328 as well, but that one has no reproducer, so 🤷

The bug was that the lint used `rfind()` for finding the byte index of the start of the previous non-whitespace character:
```
// abc\n     return;
     ^
```
... then subtracting one to get the byte index of the actual whitespace (the `\n` here).
(Subtracting instead of adding because it treats this as the length from the `return` token to the `\n`)

That's correct for ascii, like here, and will get us to the `\n`, however for non ascii, the `c` could be multiple bytes wide, which would put us in the middle of a codepoint if we simply subtract 1 and is what caused the ICE.

There's probably a lot of ways we could fix this.
This PR changes it to iterate backwards using bytes instead of characters, so that when `rposition()` finally finds a non-whitespace byte, we *know* that we've skipped exactly 1 byte. This was *probably*(?) what the code was intending to do

changelog: Fix ICE in [`needless_return`] when previous line end in a non-ascii character
2024-03-15 17:30:23 +00:00
Guillaume Gomez
1e30c2915b Rollup merge of #122513 - petrochenkov:somehir4, r=fmease
hir: Remove `opt_local_def_id_to_hir_id` and `opt_hir_node_by_def_id`

Also replace a few `hir_node()` calls with `hir_node_by_def_id()`.

Follow up to https://github.com/rust-lang/rust/pull/120943.
2024-03-15 17:24:09 +01:00
y21
d3f8f3e9d7 fix span calculation for non-ascii in needless_return 2024-03-15 16:59:23 +01:00
bors
5a11fefc25 Auto merge of #12432 - Ethiraric:fix-12411, r=y21
[`unused_enumerate_index`]: trigger on method calls

The lint used to check for patterns looking like:
```rs
for (_, x) in some_iter.enumerate() {
    // Index is ignored
}
```

This commit further checks for chained method calls constructs where we
can detect that the index is unused. Currently, this checks only for the
following patterns:
```rs
some_iter.enumerate().map_function(|(_, x)| ..)
let x = some_iter.enumerate();
x.map_function(|(_, x)| ..)
```
where `map_function` is one of `all`, `any`, `filter_map`, `find_map`,
`flat_map`, `for_each` or `map`.

Fixes #12411.

*Please write a short comment explaining your change (or "none" for internal only changes)*

changelog: [`unused_enumerate_index`]: add detection for method chains such as `iter.enumerate().map(|(_, x)| x)`
2024-03-14 22:26:06 +00:00
Ethiraric
dadcd94b2a [unused_enumerate_index]: Keep explicit element type
Prior to this change, it might be that the lint would remove an explicit
type that was necessary for the type system to keep track of types.

This should be the last change that prevented this lint to be machine
applicable.
2024-03-14 23:12:47 +01:00
bors
b667d02340 Auto merge of #12472 - GuillaumeGomez:fix-10262, r=blyxyas
Don't emit `doc_markdown` lint for missing backticks if it's inside a quote

Fixes #10262.

changelog: Don't emit `doc_markdown` lint for missing backticks if it's inside a quote
2024-03-14 21:39:25 +00:00
Vadim Petrochenkov
f55a04928f hir: Remove opt_local_def_id_to_hir_id and opt_hir_node_by_def_id
Also replace a few `hir_node()` calls with `hir_node_by_def_id()`
2024-03-14 22:34:24 +03:00
bors
8a78128e9d Auto merge of #12386 - Ethiraric:fix-12381, r=blyxyas
[`use_self`]: Make it aware of lifetimes

Have the lint trigger even if `Self` has generic lifetime parameters.

```rs
impl<'a> Foo<'a> {
    type Item = Foo<'a>; // Can be replaced with Self

    fn new() -> Self {
        Foo { // No lifetime, but they are inferred to be that of Self
              // Can be replaced as well
            ...
        }
    }

    // Don't replace `Foo<'b>`, the lifetime is different!
    fn eq<'b>(self, other: Foo<'b>) -> bool {
        ..
    }
```

Fixes #12381

*Please write a short comment explaining your change (or "none" for internal only changes)*

changelog: [`use_self`]: Have the lint trigger even if `Self` has generic lifetime parameters
2024-03-14 16:28:57 +00:00
Guillaume Gomez
0e2897fd4f Rename hir::StmtKind::Local into hir::StmtKind::Let 2024-03-14 12:42:04 +01:00
maekawatoshiki
5f8d8f1656
Simplify logic 2024-03-14 12:48:34 +09:00
maekawatoshiki
560a5a8cd1 Fix logic 2024-03-14 12:36:55 +09:00
maekawatoshiki
20e4c74521 Handle false positive with map_clone 2024-03-14 12:36:54 +09:00
J-ZhengLi
fe4e0aca73 checks dbg inside other macros as well (but no ext macro);
some refractoring;
2024-03-14 09:32:05 +08:00
J-ZhengLi
0535f55831 lint nested dbg! macros, split tests 2024-03-14 09:29:29 +08:00
J-ZhengLi
1fe884401a fix [dbg_macro] FN when dbg is inside some complex macros 2024-03-14 09:29:29 +08:00
y21
adcbb4a9b7 move readonly_write_lock to perf 2024-03-13 20:56:53 +01:00
Ethiraric
7cdeac5773 [unused_enumerate_index]: trigger on method calls
The lint used to check for patterns looking like:
```rs
for (_, x) in some_iter.enumerate() {
    // Index is ignored
}
```

This commit further checks for chained method calls constructs where we
can detect that the index is unused. Currently, this checks only for the
following patterns:
```rs
some_iter.enumerate().map_function(|(_, x)| ..)
let x = some_iter.enumerate();
x.map_function(|(_, x)| ..)
```
where `map_function` is one of `all`, `any`, `filter_map`, `find_map`,
`flat_map`, `for_each` or `map`.

Fixes #12411.
2024-03-13 20:28:01 +01:00
Guillaume Gomez
03d7ae8153 Also handle <blockquote> and <q> HTML tags 2024-03-13 19:31:01 +01:00
Guillaume Gomez
11759d1bad Don't emit doc_markdown lint for missing backticks if it's inside a quote 2024-03-13 19:25:36 +01:00
bors
73be4863f0 Auto merge of #12459 - y21:unconditional_recursion_from_into, r=Jarcho
lint when calling the blanket `Into` impl from a `From` impl

Closes #11150
```
warning: function cannot return without recursing
  --> x.rs:9:9
   |
9  | /         fn from(value: f32) -> Self {
10 | |             value.into()
11 | |         }
   | |_________^
   |
note: recursive call site
  --> x.rs:10:13
   |
10 |             value.into()
   |             ^^^^^^^^^^^^
```

I'm also thinking that we can probably generalize this lint to #11032 at some point (instead of hardcoding a bunch of impls), like how rustc's `unconditional_recursion` works, at least up to one indirect call, but this still seems useful for now :)

I've also noticed that we use `fn_def_id` in a bunch of lints and then try to get the node args of the call in a separate step, so I made a helper function that does both in one. I intend to refactor a bunch of uses of `fn_def_id` to use this later

I can add more test cases, but this is already using much of the same logic that exists for the other impls that this lint looks for (e.g. making sure that there are no conditional returns).

changelog: [`unconditional_recursion`]: emit a warning inside of `From::from` when unconditionally calling the blanket `.into()` impl
2024-03-13 16:32:25 +00:00
y21
65defdb474 [unconditional_recursion]: catch From -> Into -> From 2024-03-13 17:22:54 +01:00
bors
99e8000b92 Auto merge of #12466 - J-ZhengLi:issue12377, r=blyxyas
fix [`empty_docs`] trigger in proc-macro

fixes: #12377

---

changelog: fix [`empty_docs`] trigger in proc-macros
2024-03-12 19:23:26 +00:00
Catherine Flores
244d7da817 [cast_lossless]: Suggest type alias instead of the aliased type 2024-03-12 10:16:27 -05:00
bors
3a149111ba Auto merge of #12469 - pavedroad:master, r=y21
chore: fix some typos

Thank you for making Clippy better!

We're collecting our changelog from pull request descriptions.
If your PR only includes internal changes, you can just write
`changelog: none`. Otherwise, please write a short comment
explaining your change.

It's also helpful for us that the lint name is put within backticks (`` ` ` ``),
and then encapsulated by square brackets (`[]`), for example:
```
changelog: [`lint_name`]: your change
```

If your PR fixes an issue, you can add `fixes #issue_number` into this
PR description. This way the issue will be automatically closed when
your PR is merged.

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]
- \[ ] Added passing UI tests (including committed `.stderr` file)
- \[ ] `cargo test` passes locally
- \[ ] Executed `cargo dev update_lints`
- \[ ] Added lint documentation
- \[x] Run `cargo dev fmt`

[lint_naming]: https://rust-lang.github.io/rfcs/0344-conventions-galore.html#lints

Note that you can skip the above if you are just opening a WIP PR in
order to get feedback.

Delete this line and everything above before opening your PR.

---

*Please write a short comment explaining your change (or "none" for internal only changes)*

changelog:
2024-03-12 10:00:15 +00:00
Arthur Carcano
cbbb0ae7d2 fix: allow-one-hash-in-raw-strings option of needless_raw_string_hashes was ignored
Fixes: https://github.com/rust-lang/rust-clippy/issues/11481

changelog: Fix `allow-one-hash-in-raw-strings` option of [`needless_raw_string_hashes`] was ignored
2024-03-12 10:59:41 +01:00
bors
a8a7371728 Auto merge of #12417 - Alexendoo:iter-nth, r=flip1995
Move `iter_nth` to `style`, add machine applicable suggestion

There's no `O(n)` involved with `.iter().nth()` on the linted types since the iterator implementations provide `nth` and/or `advance_by` that operate in `O(1)`

For slice iterators the codegen is equivalent, `VecDeque`'s iterator seems to codegen differently but that doesn't seem significant enough to keep it as a perf lint

changelog: [`iter_nth`] Move to `style`

r? `@flip1995`
2024-03-12 08:54:26 +00:00
pavedroad
f472b50710 chore: fix some typos
Signed-off-by: pavedroad <qcqs@outlook.com>
2024-03-12 14:38:57 +08:00
Oli Scherer
97f2ade8e6 s/mt/mutability/ 2024-03-12 05:53:46 +00:00
Oli Scherer
013bf92dcc Add nested bool to DefKind::Static.
Will be used in the next commit
2024-03-12 05:53:46 +00:00
Oli Scherer
b205192f65 Change DefKind::Static to a struct variant 2024-03-12 05:53:46 +00:00
J-ZhengLi
3cd6fd15a5 fix [empty_docs] trigger in proc-macro 2024-03-12 10:40:40 +08:00
Jacherr
100ab4993e new restriction lint: division_remainder_used 2024-03-11 22:51:03 +00:00
bors
e22ca03627 Auto merge of #12452 - CBSpeir:dedup-manual-retain, r=blyxyas
[`manual_retain`]: Fix duplicate diagnostics

Relates to: #12379

The first lint guard executed in `LateLintPass::check_expr` was testing if the parent was of type `ExprKind::Assign`.  This meant the lint emitted on both sides of the assignment operator when `check_expr` is called on either `Expr`.  The guard in the fix only lints once when the `Expr` is of kind `Assign`.

changelog:  Fix duplicate lint diagnostic emission from [`manual_retain`]
2024-03-11 22:21:27 +00:00
bors
f685a4b3f1 Auto merge of #12378 - GuillaumeGomez:duplicated_attr, r=blyxyas
Add new `duplicated_attributes` lint

It's a lint idea that `@llogiq` gave me while reviewing another PR.

There are some limitations, in particular for the "output". Initially I wanted to make it possible for directly lint against the whole attribute if its parts were all duplicated, but then I realized that the output would be chaotic if the duplicates were coming from different attributes, so I preferred to go to the simplest way and simply emit a warning for each entry. Not the best, but makes the implementation much easier.

Another limitation is that `cfg_attr` would be a bit more tricky to implement because we need to check if two `cfg` sets are exactly the same. I added a FIXME and will likely come back to it later.

And finally, I updated the `cargo dev update_lints` command because the generated `tests/ui/rename.rs` file was emitting the `duplicated_attributes` lint, so I allowed this lint inside it to prevent it from working.

changelog: Add new `duplicated_attributes` lint
2024-03-11 18:36:21 +00:00
bors
6ff4e71a05 Auto merge of #12448 - WeiTheShinobi:fix_single_match, r=dswij
[`single_match`]: Fix duplicate diagnostics

Relates to #12379

edit two test file
`tests/ui/single_match_else.rs`
`tests/ui/single_match.rs`

those two test file point to the same lint

---

changelog: [`single_match`] Fix duplicate diagnostics
2024-03-11 10:29:00 +00:00
Hamir Mahal
9c51fd99aa
refactor: readability improvement for seek lint 2024-03-10 12:51:33 -07:00
WeiTheShinobi
8e55bbf115 [single_match]: Fix duplicate diagnostics 2024-03-11 01:08:37 +08:00
r0cky
6c863bc64c Remove unused structs in clippy 2024-03-10 23:33:00 +08:00
Christopher B. Speir
ed6e6291dc Fix duplicate lint emission from [manual_retain] 2024-03-09 18:58:40 -06:00
Guillaume Gomez
98ac5f1e8c Rename into manual_unwrap_or_default 2024-03-10 01:23:28 +01:00
Guillaume Gomez
1abf4418f8 Add new match_option_and_default lint 2024-03-10 01:15:22 +01:00
kcz
a92037fce8
[option_option]: Fix duplicate diagnostics 2024-03-09 18:08:40 -05:00
bors
7ee75f896f Auto merge of #12447 - MarcusGrass:mg/fix-12438-regression, r=y21
Fix #12438 std_instead_of_core regression

Fixes #12438.

Boy-scouting removed two paths that checks for duplication since I thought they were unused. However, that's just because I didn't spot it in the diff.

I installed [difftastic](https://github.com/Wilfred/difftastic) and ran it on the old one:

![image](https://github.com/rust-lang/rust-clippy/assets/34198073/5c51276c-055a-49a3-9425-6f7da0590fb0)

And the new one (fixed):

![image](https://github.com/rust-lang/rust-clippy/assets/34198073/6e10f29c-6d6b-4f64-893f-de526424f1cd)

New one (stderr):
![image](https://github.com/rust-lang/rust-clippy/assets/34198073/c4c07776-ee0f-47ba-996f-6b632de47c81)

Good teachings for the future when inspecting diffs with a lot of line changes, should've thought of that before, sorry for the trouble!

changelog: [`std_instead_of_core`] Fix false positive for crates that are in `std` but not `core`
2024-03-09 21:23:38 +00:00
Jacherr
0c82fd01c7 fix example code 2024-03-09 19:04:35 +00:00
Jacherr
0e59259add add new lint zero_repeat_side_effects 2024-03-09 18:53:14 +00:00
MarcusGrass
b44ab66156
Fix #12438 false positive regression 2024-03-09 18:37:18 +01:00
y21
ced8bc5b8f use span_lint_hir instead of span_lint in more lints 2024-03-09 17:43:04 +01:00
bors
b2f9c4cbc7 Auto merge of #12442 - cookie-s:fix-mutmut-duplicate-diags, r=y21
[`mut_mut`]: Fix duplicate diags

Relates to #12379

The `mut_mut` lint produced two diagnostics for each `mut mut` pattern in `ty` inside  `block`s because `MutVisitor::visit_ty` was called from `MutMut::check_ty` and  `MutMut::check_block` independently. This PR fixes the issue.

---

changelog: [`mut_mut`]: Fix duplicate diagnostics
2024-03-09 13:13:28 +00:00
bors
099e2c0033 Auto merge of #12443 - cookie-s:noeffectreoplace-fix-dup-diags, r=Alexendoo
[`no_effect_replace`]: Fix duplicate diagnostics

Relates to #12379

Fixes `no_effect_replace` duplicate diagnostics

---

changelog: [`no_effect_replace`]: Fix duplicate diagnostics
2024-03-09 13:02:47 +00:00
Guillaume Gomez
f34804d807 Add new duplicated_attributes lint 2024-03-09 12:43:18 +01:00
bors
453242cbde Auto merge of #12310 - samueltardieu:issue-12307, r=xFrednet
New lint `const_is_empty`

This lint detects calls to `.is_empty()` on an entity initialized from a string literal and flag them as suspicious. To avoid triggering on macros called from generated code, it checks that the `.is_empty()` receiver, the call itself and the initialization come from the same context.

Fixes #12307

changelog: [`const_is_empty`]: new lint
2024-03-09 09:56:37 +00:00
Christopher B. Speir
8d78cd17e1 Fix duplicate lint emission from [else_if_without_else] 2024-03-08 22:36:17 -06:00
kcz
7473f0522c
[no_effect_replace]: Fix duplicate diagnostics 2024-03-08 23:05:16 -05:00
kcz
4e95b4a026
[mut_mut]: Fix duplicate diags 2024-03-08 22:39:36 -05:00
bors
0b4b684b46 Auto merge of #12433 - J-ZhengLi:issue12197, r=dswij
fix [`missing_docs_in_private_items`] on some proc macros

fixes: #12197

---

changelog: [`missing_docs_in_private_items`] support manually search for docs as fallback method
2024-03-08 11:05:50 +00:00
J-ZhengLi
adc91e4913 support manually search for docs in case attr was removed by proc macros 2024-03-08 16:32:47 +08:00
Matthias Krüger
15722797fe Rollup merge of #119365 - nbdd0121:asm-goto, r=Amanieu
Add asm goto support to `asm!`

Tracking issue: #119364

This PR implements asm-goto support, using the syntax described in "future possibilities" section of [RFC2873](https://rust-lang.github.io/rfcs/2873-inline-asm.html#asm-goto).

Currently I have only implemented the `label` part, not the `fallthrough` part (i.e. fallthrough is implicit). This doesn't reduce the expressive though, since you can use label-break to get arbitrary control flow or simply set a value and rely on jump threading optimisation to get the desired control flow. I can add that later if deemed necessary.

r? ``@Amanieu``
cc ``@ojeda``
2024-03-08 08:19:17 +01:00
Ethiraric
f3879b3630 [use_self]: Make it aware of lifetimes
Have the lint trigger even if `Self` has generic lifetime parameters.

```rs
impl<'a> Foo<'a> {
    type Item = Foo<'a>; // Can be replaced with Self

    fn new() -> Self {
        Foo { // No lifetime, but they are inferred to be that of Self
              // Can be replaced as well
            ...
        }
    }

    // Don't replace `Foo<'b>`, the lifetime is different!
    fn eq<'b>(self, other: Foo<'b>) -> bool {
        ..
    }
```

Fixes #12381
2024-03-07 20:45:59 +01:00
Ethiraric
43f4ec3b13 [unused_enumerate_index]: Use if-let chain 2024-03-07 19:26:42 +01:00
Philipp Krones
7e83df4068 Merge commit '93f0a9a91f58c9b2153868f458402155fb6265bb' into clippy-subtree-update 2024-03-07 17:19:29 +01:00
Philipp Krones
a6df0277ea
Merge remote-tracking branch 'upstream/master' into rustup 2024-03-07 17:14:36 +01:00
Alex Macleod
ac643a278b Don't lint redundant_field_names across macro boundaries 2024-03-07 12:21:16 +00:00
bors
a79db2aa51 Auto merge of #12401 - MarcusGrass:dedup-nonminimal-bool, r=blyxyas
Remove double expr lint

Related to #12379.

Previously the code manually checked nested binop exprs in unary exprs, but those were caught anyway by `check_expr`. Removed that code path, the path is used in the tests.

---

changelog: [`nonminimal_bool`] Remove duplicate output on nested Binops in Unary exprs.
2024-03-06 13:32:53 +00:00
Ross Smyth
c36d5e3280 Add MatchKind member to the Match expr for pretty printing & fmt 2024-03-06 00:35:19 -05:00
Jason Newcomb
0901b9fecf Convert TypeVisitor and DefIdVisitor to use VisitorResult 2024-03-05 13:28:15 -05:00
bors
e485a02ef2 Auto merge of #12077 - Kobzol:assigning-clones, r=blyxyas
Add `assigning_clones` lint

This PR is a "revival" of https://github.com/rust-lang/rust-clippy/pull/10613 (with `@kpreid's` permission).

I tried to resolve most of the unresolved things from the mentioned PR:
1) The lint now checks properly if we indeed call the functions `std::clone::Clone::clone` or `std::borrow::ToOwned::to_owned`.
2) It now supports both method and function (UFCS) calls.
3) A heuristic has been added to decide if the lint should apply. It will only apply if the type on which the method is called has a custom implementation of `clone_from/clone_into`. Notably, it will not trigger for types that use `#[derive(Clone)]`.
4) `Deref` handling has been (hopefully) a bit improved, but I'm not sure if it's ideal yet.

I also added a bunch of additional tests.

There are a few things that could be improved, but shouldn't be blockers:
1) When the right-hand side is a function call, it is transformed into e.g. `::std::clone::Clone::clone(...)`. It would be nice to either auto-import the `Clone` trait or use the original path and modify it (e.g. `clone::Clone::clone` -> `clone::Clone::clone_from`). I don't know how to modify the `QPath` to do that though.
2) The lint currently does not trigger when the left-hand side is a local variable without an initializer. This is overly conservative, since it could trigger when the variable has no initializer, but it has been already initialized at the moment of the function call, e.g.
```rust
let mut a;
...
a = Foo;
...
a = b.clone(); // Here the lint should trigger, but currently doesn't
```
These cases probably won't be super common, but it would be nice to make the lint more precise. I'm not sure how to do that though, I'd need access to some dataflow analytics or something like that.

changelog: new lint [`assigning_clones`]
2024-03-05 15:26:57 +00:00
bors
2d9d404448 Auto merge of #12413 - high-cloud:fix_assign_ops2, r=flip1995
[`misrefactored_assign_op`]: Fix duplicate diagnostics

Relate to #12379

The following diagnostics appear twice
```
  --> tests/ui/assign_ops2.rs:26:5
   |
LL |     a *= a * a;
   |     ^^^^^^^^^^
   |
help: did you mean `a = a * a` or `a = a * a * a`? Consider replacing it with
```

because `a` (lhs) appears in both left operand and right operand in the right hand side.
This PR fixes the issue so that if a diagnostic is created for an operand, the check of the other operand will be skipped. It's fine because the result is always the same in the affected operators.

changelog: [`misrefactored_assign_op`]: Fix duplicate diagnostics
2024-03-05 14:34:56 +00:00
bors
21efd39b04 Auto merge of #12423 - GuillaumeGomez:code-wrapped-element, r=Alexendoo
Don't emit "missing backticks" lint if the element is wrapped in `<code>` HTML tags

Fixes #9473.

changelog: Don't emit "missing backticks" lint if the element is wrapped in `<code>` HTML tags
2024-03-05 14:02:54 +00:00
Yaodong Yang
3c5008e8de [misrefactored_assign_op]: Fix duplicate diagnostics 2024-03-05 19:53:26 +08:00
Guillaume Gomez
ee375e48be Don't emit "missing backticks" lint if the element is wrapped in <code> HTML tags 2024-03-05 12:06:51 +01:00
Nicholas Nethercote
ec920ce096 Rename DiagnosticExt as DiagExt. 2024-03-05 12:14:49 +11:00
Samuel Moelius
cc4c8db0fd Handle plural acronyms in doc_markdown 2024-03-04 22:00:24 +00:00
Nicholas Nethercote
b74b4b09d1 Rename all ParseSess variables/fields/lifetimes as psess.
Existing names for values of this type are `sess`, `parse_sess`,
`parse_session`, and `ps`. `sess` is particularly annoying because
that's also used for `Session` values, which are often co-located, and
it can be difficult to know which type a value named `sess` refers to.
(That annoyance is the main motivation for this change.) `psess` is nice
and short, which is good for a name used this much.

The commit also renames some `parse_sess_created` values as
`psess_created`.
2024-03-05 08:11:45 +11:00
Alex Macleod
301d293ef6 Move iter_nth to style, add machine applicable suggestion 2024-03-04 16:39:15 +00:00
bors
5214ab557f Auto merge of #12416 - Veykril:patch-2, r=blyxyas
Add missing header for `manual_is_variant_and`

Noticed this while generating our lint completions failed in rust-analyzer (separate PR from https://github.com/rust-lang/rust-clippy/pull/12415 as I made these via the github interface quickly)
changelog: none
2024-03-04 16:27:23 +00:00
Lukas Wirth
7322fa0235
Add missing header for manual_is_variant_and 2024-03-04 17:09:49 +01:00
Lukas Wirth
c5c14773fd
Add missing header for manual_c_str_literals 2024-03-04 17:07:31 +01:00
bors
c0939b18b8 Auto merge of #12409 - cookie-s:fix-identityop-duplicate-errors, r=Alexendoo
[`identity_op`]: Fix duplicate diagnostics

Relates to #12379

In the `identity_op` lint, the following diagnostic was emitted two times

```
  --> tests/ui/identity_op.rs:156:5
   |
LL |     1 * 1;
   |     ^^^^^ help: consider reducing it to: `1`
   |
```

because both of the left operand and the right operand are the identity element of the multiplication.

This PR fixes the issue so that if a diagnostic is created for an operand, the check of the other operand will be skipped. It's fine because the result is always the same in the affected operators.

---

changelog: [`identity_op`]: Fix duplicate diagnostics
2024-03-04 14:43:38 +00:00
bors
e970fa52e7 Auto merge of #12341 - y21:issue12337, r=dswij
Check for try blocks in `question_mark` more consistently

Fixes #12337

I split this PR up into two commits since this moves a method out of an `impl`, which makes for a pretty bad diff (the `&self` parameter is now unused, and there isn't a reason for that function to be part of the `impl` now).

The first commit is the actual relevant change and the 2nd commit just moves stuff (github's "hide whitespace" makes the diff easier to look at)

------------
Now for the actual issue:

`?` within `try {}` blocks desugars to a `break` to the block, rather than a `return`, so that changes behavior in those cases.

The lint has multiple patterns to look for and in *some* of them it already does correctly check whether we're in a try block, but this isn't done for all of its patterns.

We could add another `self.inside_try_block()` check to the function that looks for `let-else-return`, but I chose to actually just move those checks out and instead have them in `LintPass::check_{stmt,expr}`. This has the advantage that we can't (easily) accidentally forget to add that check in new patterns that might be added in the future.

(There's also a bit of a subtle interaction between two lints, where `question_mark`'s LintPass calls into `manual_let_else`, so I added a check to make sure we don't avoid linting for something that doesn't have anything to do with `?`)

changelog: [`question_mark`]: avoid linting on try blocks in more cases
2024-03-04 14:34:56 +00:00
bors
f75d8c7f1b Auto merge of #12393 - J-ZhengLi:issue9413, r=dswij
fix [`derive_partial_eq_without_eq`] FP on trait projection

fixes: #9413 #9319

---

changelog: fix [`derive_partial_eq_without_eq`] FP on trait projection

Well, this is awkward, it works but I don't understand why, why `clippy_utils::ty::implements_trait` couldn't detects the existance of `Eq` trait, even thought it's obviously present in the derive attribute.
2024-03-04 06:43:59 +00:00
kcz
3b9939e83b
[identity_op]: Fix duplicate errors 2024-03-03 19:25:51 -05:00
bors
c2dd413c79 Auto merge of #12403 - samueltardieu:issue-12402, r=blyxyas
Pointers cannot be converted to integers at compile time

Fix #12402

changelog: [`transmutes_expressible_as_ptr_casts`]: do not suggest invalid const casts
2024-03-03 23:09:54 +00:00
bors
aceeb54b75 Auto merge of #12405 - PartiallyTyped:12404, r=blyxyas
Added msrv to threadlocal initializer check

closes: #12404
changelog:[`thread_local_initializer_can_be_made_const`]: Check for MSRV (>= 1.59) before processing.
2024-03-03 23:01:37 +00:00
Samuel Tardieu
6e5332cd9c Pointers cannot be converted to integers at compile time 2024-03-03 23:55:01 +01:00
bors
30642113b2 Auto merge of #12406 - MarcusGrass:fix-duplicate-std-instead-of-core, r=Alexendoo
Dedup std_instead_of_core by using first segment span for uniqueness

Relates to #12379.

Instead of checking that the paths have an identical span, it checks that the relevant `std` part of the path segment's span is identical. Added a multiline test, because my first implementation was worse and failed that, then I realized that you could grab the span off the first_segment `Ident`.

I did find another bug that isn't addressed by this, and that exists on master as well.

The path:
```Rust
use std::{io::Write, fmt::Display};
```

Will get fixed into:
```Rust
use core::{io::Write, fmt::Display};
```

Which doesn't compile since `io::Write` isn't in `core`, if any of those paths are present in `core` it'll do the replace and cause a miscompilation. Do you think I should file a separate bug for that? Since `rustfmt` default splits those up it isn't that big of a deal.

Rustfmt:
```Rust
// Pre
use std::{io::Write, fmt::Display};
// Post
use std::fmt::Display;
use std::io::Write;
```
---

changelog: [`std_instead_of_core`]: Fix duplicated output on multiple imports
2024-03-03 18:22:40 +00:00
MarcusGrass
a2e4ef294c
dump bugged fix 2024-03-03 17:17:58 +01:00
Quinn Sinclair
08459b4dae Added msrv to threadlocal initializer 2024-03-03 15:43:09 +01:00
MarcusGrass
74cba639e9
Dedup std_instead_of_core by using first segment span for uniqueness 2024-03-03 15:30:49 +01:00
Samuel Tardieu
1df2854ac3 [let_underscore_untyped]: fix false positive on async function 2024-03-03 14:03:02 +01:00
MarcusGrass
8e3ad2e545
Remove double expr lint 2024-03-03 08:32:30 +01:00
Christopher B. Speir
1580af6b55 Refactor lints in clippy_lints::attrs into separate submodules/files 2024-03-02 07:20:25 -06:00
Trevor Gross
2c8f47105a Propegate HIR and AST f16 and f128 types to clippy 2024-03-01 13:59:06 -05:00
J-ZhengLi
1a97d1460b fix [derive_partial_eq_without_eq] FP on trait projection 2024-03-02 00:37:35 +08:00
Jakub Beránek
24de0be29b
Fix tests 2024-03-01 16:37:23 +01:00
Jakub Beránek
bc551b9a70
Do not run the lint on macro-generated code 2024-03-01 16:36:05 +01:00
Jakub Beránek
f7356f2a8f
Fix lint errors 2024-03-01 16:36:05 +01:00
Jakub Beránek
41f5ee1189
React to review 2024-03-01 16:36:05 +01:00
Jakub Beránek
0656d28f6b
Add assigning_clones lint 2024-03-01 16:35:28 +01:00
bors
e865dca4d7 Auto merge of #12010 - granddaifuku:fix/manual-memcpy-indexing-for-multi-dimension-arrays, r=Alexendoo
fix: `manual_memcpy` wrong indexing for multi dimensional arrays

fixes: #9334

This PR fixes an invalid suggestion for multi-dimensional arrays.

For example,
```rust
let src = vec![vec![0; 5]; 5];
let mut dst = vec![0; 5];

for i in 0..5 {
    dst[i] = src[i][i];
}
```

For the above code, Clippy suggests `dst.copy_from_slice(&src[i]);`, but it is not compilable because `i` is only used to loop the array.
I adjusted it so that Clippy `manual_memcpy` works properly for multi-dimensional arrays.

changelog: [`manual_memcpy`]: Fixes invalid indexing suggestions for multi-dimensional arrays
2024-03-01 12:05:03 +00:00
bors
fb18033b83 Auto merge of #121728 - tgross35:f16-f128-step1-ty-updates, r=compiler-errors
Add stubs in IR and ABI for `f16` and `f128`

This is the very first step toward the changes in https://github.com/rust-lang/rust/pull/114607 and the [`f16` and `f128` RFC](https://rust-lang.github.io/rfcs/3453-f16-and-f128.html). It adds the types to `rustc_type_ir::FloatTy` and `rustc_abi::Primitive`, and just propagates those out as `unimplemented!` stubs where necessary.

These types do not parse yet so there is no feature gate, and it should be okay to use `unimplemented!`.

The next steps will probably be AST support with parsing and the feature gate.

r? `@compiler-errors`
cc `@Nilstrieb` suggested breaking the PR up in https://github.com/rust-lang/rust/pull/120645#issuecomment-1925900572
2024-03-01 03:36:11 +00:00
Quinn Sinclair
bb1ee8746e Fixed FP for thread_local_initializer_can_be_made_const for os_local
`os_local` impl of `thread_local` — regardless of whether it is const and
unlike other implementations — includes an `fn __init(): EXPR`.

Existing implementation of the lint checked for the presence of said
function and whether the expr can be made const. Because for `os_local`
we always have an `__init()`, it triggers for const implementations.

The solution is to check whether the `__init()` function is already const.
If it is `const`, there is nothing to do. Otherwise, we verify that we can
make it const.

Co-authored-by: Alejandra González <blyxyas@gmail.com>
2024-03-01 00:41:14 +01:00
bors
00ff8c92d3 Auto merge of #12354 - GuillaumeGomez:mixed_attributes_style, r=llogiq
Add new `mixed_attributes_style` lint

Add a new lint to detect cases where both inner and outer attributes are used on a same item.

r? `@llogiq`

----

changelog: Add new [`mixed_attributes_style`] lint
2024-02-29 11:44:51 +00:00
Nicholas Nethercote
81100bd154 Rename DiagCtxt::with_emitter as DiagCtxt::new.
Because it's now the only constructor.
2024-02-29 16:30:12 +11:00
Ethiraric
0d59345907 [redundant_closure_call]: Don't lint if closure origins from a macro
The following code used to trigger the lint:
```rs
 macro_rules! make_closure {
     () => {
         (|| {})
     };
 }
 make_closure!()();
```
The lint would suggest to replace `make_closure!()()` with
`make_closure!()`, which changes the code and removes the call to the
closure from the macro. This commit fixes that.

Fixes #12358
2024-02-28 19:17:37 +01:00
Trevor Gross
17930c9614 Add stubs for f16 and f128 to clippy 2024-02-28 12:58:32 -05:00
bors
e450a27a20 Auto merge of #12372 - GuillaumeGomez:fix-nonminimal_bool-regression, r=flip1995
Fix `nonminimal_bool` lint regression

Fixes #12371.
Fixes #12369.

cc `@RalfJung`

The problem was an invalid condition. Shame on me...

changelog: Fix `nonminimal_bool` lint regression
2024-02-28 15:30:49 +00:00
Guillaume Gomez
41a351665f Improve is_lint_level code 2024-02-28 15:14:22 +01:00
Guillaume Gomez
ebf20954ee Fix invalid condition in nonminimal_bool lint 2024-02-28 12:47:45 +01:00
y21
1430623e04 move methods out of impl and remove unused &self param 2024-02-28 00:53:25 +01:00
y21
0671d78283 check for try blocks in LintPass methods 2024-02-27 23:49:07 +01:00
Nicholas Nethercote
2a2b0b78eb Rename DiagnosticBuilder as Diag.
Much better!

Note that this involves renaming (and updating the value of)
`DIAGNOSTIC_BUILDER` in clippy.
2024-02-28 08:55:35 +11:00
bors
4c1d05cfa1 Auto merge of #12362 - Ethiraric:fix-11935, r=llogiq
[`map_entry`]: Check insert expression for map use

The lint makes sure that the map is not used (borrowed) before the call to `insert`. Since the lint creates a mutable borrow on the map with the `Entry`, it wouldn't be possible to replace such code with `Entry`. However, expressions up to the `insert` call are checked, but not expressions for the arguments of the `insert` call itself. This commit fixes that.

Fixes #11935

----

changelog: [`map_entry`]: Fix false positive when borrowing the map in the `insert` call
2024-02-27 18:53:25 +00:00
Yudai Fukushima
dfedadc179 fix: manual_memcpy wrong suggestion for multi dimensional arrays
chore: rebase master

chore: replace $DIR

fix: check bases does not contain reference to loop index

fix: grammatical mistake

fix: style
2024-02-28 03:48:49 +09:00
Ethiraric
c6cb0e99f3 [unnecessary_cast]: Avoid breaking precedence
If the whole cast expression is a unary expression (`(*x as T)`) or an
addressof expression (`(&x as T)`), then not surrounding the suggestion
into a block risks us changing the precedence of operators if the cast
expression is followed by an operation with higher precedence than the
unary operator (`(*x as T).foo()` would become `*x.foo()`, which changes
what the `*` applies on).
The same is true if the expression encompassing the cast expression is a
unary expression or an addressof expression.

The lint supports the latter case, but missed the former one. This PR
fixes that.

Fixes #11968
2024-02-27 16:27:12 +01:00
Philipp Krones
7be6e2178e Merge commit '10136170fe9ed01e46aeb4f4479175b79eb0e3c7' into clippy-subtree-update 2024-02-27 15:50:17 +01:00