bors [Sun, 23 Oct 2022 05:05:23 +0000 (05:05 +0000)]
Auto merge of #9688 - Alexendoo:msrv-tests, r=Manishearth
Move MSRV tests into the lint specific test files
There are currently two ways MSRV tests are done in the ui test suite, adding a case to the `#![clippy::msrv = "1.0"]` `tests/ui/min_rust_version_attr.rs` or adding the two `msrv_1_xx` functions to the test file of the lint in question
This updates the clippy book to suggest the `msrv_1_xx` style, and replaces the tests in `tests/ui/min_rust_version_attr.rs` with ones of that style
Almost the entire diff is just moving stuff around as a result, I made sure to check the line numbers the lints are emitted at correspond with the right `msrv` case, so feel free to only skim that part
I wasn't the sure about the best way to convey the message in the lint message since it does not use suggestion. Because I liked the former output highlighting both spans, I've left it as before, only modifying the span label.
bors [Thu, 20 Oct 2022 15:18:31 +0000 (15:18 +0000)]
Auto merge of #9635 - smoelius:fix-9386-bug, r=Jarcho
Fix bug introduced by #9386
#9386 introduced a potential out-of-bounds array access. Specifically, a location returned by `local_assignments` could have [`location.statement_index` equal to `mir.basic_blocks[location.block].statements.len()`](https://github.com/rust-lang/rust-clippy/blob/b8a9a507bf9e3149d287841454842116c72d66c4/clippy_utils/src/mir/mod.rs#L129), in which case the location would refer to the block terminator:
https://github.com/rust-lang/rust-clippy/blob/b8a9a507bf9e3149d287841454842116c72d66c4/clippy_lints/src/dereference.rs#L1204-L1206
I suspect the bug is not triggerable now, because of checks leading up to where it occurs. But a future code change could make it triggerable. Hence, it should be fixed.
bors [Sun, 16 Oct 2022 05:56:19 +0000 (05:56 +0000)]
Auto merge of #9566 - smoelius:diagnostic-item-path, r=dswij
Expand internal lint `unnecessary_def_path`
This PR does essentially two things:
* Separates the internal lints into modules by pass. (`internal_lints.rs` was over 1400 lines, which is a little unruly IMHO.)
* ~Adds a new~ Expands the `unnecessary_def_path` internal lint to flag hardcoded paths to diagnostic and language items.
My understanding is that the latter is currently done by reviewers. Automating this process should make things easier for both reviewers and contributors.
I could make the first bullet a separate PR, or remove it entirely, if desired.
bors [Sun, 16 Oct 2022 03:11:06 +0000 (03:11 +0000)]
Auto merge of #9655 - llogiq:unbox-default, r=dswij
fix `box-default` linting `no_std` non-boxes
This fixes #9653 by doing the check against the `Box` type correctly even if `Box` isn't there, as in `no_std` code. Thanks to `@lukas-code` for opening the issue and supplying a reproducer!
bors [Fri, 14 Oct 2022 16:28:57 +0000 (16:28 +0000)]
Auto merge of #9643 - icecream17:patch-1, r=flip1995
Book: Small grammar + link a11y change
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: none
---
Very minor
For the link accessibility change, `here` and related don't provide context for screen readers who are reading a list of links.
(Random supporting google links)
https://www.w3.org/QA/Tips/noClickHere
https://usability.yale.edu/web-accessibility/articles/links
bors [Thu, 13 Oct 2022 12:18:20 +0000 (12:18 +0000)]
Auto merge of #9640 - Alexendoo:edition-revisions, r=llogiq
Fix edition revision ui tests
#9605 had me wondering how the edition revision tests were working for `manual_assert` but not for `@nyurik,` but it turns out `manual_assert`'s tests weren't working either. I checked how `rust-lang/rust` does it and apparently it comes down to whitespace, `//[rev] edition:X` works 😬
Removes the revisions from `match_wild_err_arm` as I couldn't find any edition dependant behaviour there
bors [Thu, 13 Oct 2022 11:51:20 +0000 (11:51 +0000)]
Auto merge of #9600 - nyurik:inline-fmt-style, r=llogiq
Change uninlined_format_args into a style lint
As [previously discussed](https://github.com/rust-lang/rust-clippy/pull/9233#issuecomment-1256361205), the `uninlined_format_args` should probably be a part of the default style because `println!("{}", foo)` is not as concise or easy to understand as `println!("{foo}")`
changelog: [`uninlined_format_args`]: change to be the default `style`
bors [Tue, 11 Oct 2022 08:35:12 +0000 (08:35 +0000)]
Auto merge of #9616 - unvalley:add-default-to-lint-groups, r=xFrednet
Add Default to Clippy Lints Lint groups
- related to #7958
This PR adds a default (reset) button to Clippy Lints Lint groups. (change for website)
[The page](https://rust-lang.github.io/rust-clippy/master/index.html) sets only `Deprecated` to false by default.
Certainly it is easy to set only `deprecated` to false, but it may be a bit lazy for beginners.
bors [Tue, 11 Oct 2022 08:08:17 +0000 (08:08 +0000)]
Auto merge of #9572 - Nilstrieb:as-ptr-cast-mut, r=dswij
Add `as_ptr_cast_mut` 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.
Examples of broken code with this pattern:
https://miri.saethlin.dev/ub?crate=lol_alloc&version=0.1.3
https://miri.saethlin.dev/ub?crate=sophon-wasm&version=0.19.0
https://miri.saethlin.dev/ub?crate=polars-core&version=0.24.2
https://miri.saethlin.dev/ub?crate=ach-cell&version=0.1.17
Dylan DPC [Mon, 10 Oct 2022 08:13:40 +0000 (13:43 +0530)]
Rollup merge of #99696 - WaffleLapkin:uplift, r=fee1-dead
Uplift `clippy::for_loops_over_fallibles` lint into rustc
This PR, as the title suggests, uplifts [`clippy::for_loops_over_fallibles`] lint into rustc. This lint warns for code like this:
```rust
for _ in Some(1) {}
for _ in Ok::<_, ()>(1) {}
```
i.e. directly iterating over `Option` and `Result` using `for` loop.
There are a number of suggestions that this PR adds (on top of what clippy suggested):
1. If the argument (? is there a better name for that expression) of a `for` loop is a `.next()` call, then we can suggest removing it (or rather replacing with `.by_ref()` to allow iterator being used later)
```rust
for _ in iter.next() {}
// turns into
for _ in iter.by_ref() {}
```
2. (otherwise) We can suggest using `while let`, this is useful for non-iterator, iterator-like things like [async] channels
```rust
for _ in rx.recv() {}
// turns into
while let Some(_) = rx.recv() {}
```
3. If the argument type is `Result<impl IntoIterator, _>` and the body has a `Result<_, _>` type, we can suggest using `?`
```rust
for _ in f() {}
// turns into
for _ in f()? {}
```
4. To preserve the original behavior and clear intent, we can suggest using `if let`
```rust
for _ in f() {}
// turns into
if let Some(_) = f() {}
```
(P.S. `Some` and `Ok` are interchangeable depending on the type)
I still feel that the lint wording/look is somewhat off, so I'll be happy to hear suggestions (on how to improve suggestions :D)!
Yuki Okushi [Mon, 10 Oct 2022 01:23:03 +0000 (10:23 +0900)]
Rollup merge of #102275 - Urgau:stabilize-half_open_range_patterns, r=cjgillot
Stabilize `half_open_range_patterns`
This PR stabilize `feature(half_open_range_patterns)`:
```
Allows using `..=X` as a pattern.
```
And adds a new `feature(half_open_range_patterns_in_slices)` for the slice part, https://github.com/rust-lang/rust/pull/102275#issuecomment-1267422806.
The FCP was completed in https://github.com/rust-lang/rust/issues/67264.
Yuki Okushi [Sun, 9 Oct 2022 15:09:42 +0000 (00:09 +0900)]
Rollup merge of #102829 - compiler-errors:rename-impl-item-kind, r=TaKO8Ki
rename `ImplItemKind::TyAlias` to `ImplItemKind::Type`
The naming of this variant seems inconsistent given that this is not really a "type alias", and the associated type variant for `TraitItemKind` is just called `Type`.
bors [Sat, 8 Oct 2022 21:24:54 +0000 (21:24 +0000)]
Auto merge of #9386 - smoelius:further-enhance-needless-borrow, r=Jarcho
Further enhance `needless_borrow`, mildly refactor `redundant_clone`
This PR does the following:
* Moves some code from `redundant_clone` into a new `clippy_utils` module called `mir`, and wraps that code in a function called `dropped_without_further_use`.
* Relaxes the "is copyable" condition condition from #9136 by also suggesting to remove borrows from values dropped without further use. The changes involve the just mentioned function.
* Separates `redundant_clone` into modules.
Strictly speaking, the last bullet is independent of the others. `redundant_clone` is somewhat hairy, IMO. Separating it into modules makes it slightly less so, by helping to delineate what depends upon what.
I've tried to break everything up into digestible commits.
bors [Sat, 8 Oct 2022 15:58:51 +0000 (15:58 +0000)]
Auto merge of #9451 - kraktus:manual_filter2, r=dswij
Add `manual_filter` lint for `Option`
Share much of its implementation with `manual_map` and should greatly benefit from its previous feedback.
I'm sure it's possible to even more refactor both and would gladly take input on that as well as any clippy idiomatic usage, since this is my first lint addition.
I've added the lint to the complexity section for now, I don't know if every new lint needs to go in nursery first.
The matching could be expanded to more than `Some(<value>)` to lint on arbitrary struct matching inside the `Some` but I've left it like it was for `manual_map` for now. `needless_match::pat_same_as_expr` provides a more generic match example.
close https://github.com/rust-lang/rust-clippy/issues/8822
changelog: Add lint [`manual_filter`] for `Option`
bors [Fri, 7 Oct 2022 20:50:51 +0000 (20:50 +0000)]
Auto merge of #102091 - RalfJung:const_err, r=oli-obk
make const_err a hard error
This lint has been deny-by-default with future incompat wording since [Rust 1.51](https://github.com/rust-lang/rust/pull/80394) and the stable release of this week starts showing it in cargo's future compat reports. I can't wait to finally get rid of at least some of the mess in our const-err-reporting-code. ;)
bors [Fri, 7 Oct 2022 14:49:54 +0000 (14:49 +0000)]
Auto merge of #9585 - rust-lang:extend-box-default, r=Alexendoo
extend `box-default` lint, add suggestion
This extends the recently added `box-default` lint to also cover `Box::new(vec![])`, `Box::new(String::from(""))` and `Box::new(Vec::from([]))`. Also the lint now suggests a suitable replacement. I did not find a simple way to check whether the type is fully determined by the outside, so I at least checked for some variations to remove the turbofish in those cases.
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