Commit graph

260 commits

Author SHA1 Message Date
bors
1931db20b1 Auto merge of #6988 - mikerite:fix-6984, r=camsteffen
Fix hidden variant suggestion on single variant

Fixes #6984

changelog: Fix hidden variant suggestion on `match_wildcard_for_single_variants`
2021-04-02 12:42:40 +00:00
Cameron Steffen
827d6aaad4 Eat dogfood 2021-03-31 14:06:27 -05:00
Yoshitomo Nakanishi
30952530c5 Fix codes that fails dogfood 2021-04-01 00:05:42 +09:00
Michael Wright
8abab5561c Fix hidden variant suggestion on single variant
Fixes #6984
2021-03-31 07:36:09 +02:00
Matthias Krüger
e006c77d61 redundant_pattern_matching: look inside Refs
look inside refs and detect if let &None = ...

Fixes https://github.com/rust-lang/rust-clippy/issues/5396

changelog:  redundant_pattern_matching: look inside Refs to fix FNs with "if let &None = .. "
2021-03-28 00:04:44 +01:00
flip1995
1f5f184105
Merge remote-tracking branch 'upstream/master' into rustup 2021-03-25 18:38:13 +01:00
ThibsG
00a2d7ad7e Fix bad suggestion that needs curly braces for match_single_binding lint 2021-03-20 16:11:19 +01:00
bors
b62694b08f Auto merge of #82122 - bstrie:dep4real, r=dtolnay
Deprecate `intrinsics::drop_in_place` and `collections::Bound`, which accidentally weren't deprecated

Fixes #82080.

I've taken the liberty of updating the `since` values to 1.52, since an unobservable deprecation isn't much of a deprecation (even the detailed release notes never bothered to mention these deprecations).

As mentioned in the issue I'm *pretty* sure that using a type alias for `Bound` is semantically equivalent to the re-export; [the reference implies](https://doc.rust-lang.org/reference/items/type-aliases.html) that type aliases only observably differ from types when used on unit structs or tuple structs, whereas `Bound` is an enum.
2021-03-17 19:39:03 +00:00
Jason Newcomb
d5a7941ead
Fix message for match_wildcard_for_single_variant 2021-03-17 12:42:18 -04:00
Jason Newcomb
0b7ab90eca
Improvements to match_wildcard_for_single_variants and wildcard_enum_match_arm lints
Don't lint on `Result` and `Option` types.
Considers `or` patterns.
Considers variants prefixed with `Self`
Suggestions will try to find a common prefix rather than just using the full path
2021-03-17 12:04:11 -04:00
Cameron Steffen
0743e841f0 Don't re-export clippy_utils::* 2021-03-17 09:13:52 -05:00
Cameron Steffen
1c3a3e7dc6 Don't re-export clippy_utils::diagnostics::* 2021-03-15 20:06:01 -05:00
Cameron Steffen
6fc52a63d1 Move some utils to clippy_utils::source module 2021-03-15 15:34:15 -05:00
Cameron Steffen
eb7f8d6089 Move some utils to ty_utils 2021-03-15 13:44:09 -05:00
Yoshitomo Nakanishi
93ee80ac3e Use sym::Iterator instead of paths::ITERATOR 2021-03-13 02:10:54 +09:00
flip1995
f2f2a005b4 Merge commit '6ed6f1e6a1a8f414ba7e6d9b8222e7e5a1686e42' into clippyup 2021-03-12 15:30:50 +01:00
flip1995
78c740e2f3
Merge remote-tracking branch 'upstream/master' into rustup 2021-03-11 10:37:58 +01:00
bstrie
7406c12885 Deprecate items that accidentally weren't deprecated
Fixes #82080
2021-03-09 19:09:20 -05:00
Camille GILLOT
04496071e4 Remove hir::Arm::attrs. 2021-03-09 19:23:05 +01:00
Matthias Krüger
8eb2bd13d0 update the lint messages and tests 2021-02-28 02:22:05 +01:00
flip1995
f64149dd04 Merge commit '928e72dd10749875cbd412f74bfbfd7765dbcd8a' into clippyup 2021-02-25 11:25:22 +01:00
Cameron Steffen
9ad6e263c9 Fix match_same_arms with SpanlessEq changes 2021-02-17 10:47:26 -06:00
flip1995
8b9f4a0d34 Merge commit '70c0f90453701e7d6d9b99aaa1fc6a765937b736' into clippyup 2021-02-11 15:04:38 +01:00
Cameron Steffen
1d30422945 Enhance LocalUsedVisitor to check closure bodies 2021-02-08 08:56:33 -06:00
Cameron Steffen
56f7fbb4ae Cleanup path to local checks 2021-02-05 10:24:32 -06:00
Manish Goregaokar
c8cb90abbd Merge commit '3e4179766bcecd712824da04356621b8df012ea4' into sync-from-clippy 2021-02-02 20:43:30 -08:00
bors
c5f3f9df3b Auto merge of #6603 - ThibsG:MatchOverlappingArm5986, r=flip1995
Do not lint when range is completely included into another one

This fix has been developed following this [comment](https://github.com/rust-lang/rust-clippy/issues/5986#issuecomment-703313548).
So this will be linted:
```
|----------|
        |-----------|
```
Now this won't be linted:
```
              |---|
|--------------------|
```
and this will still lint:
```
|--------|
|--------------|
```

Fixes: #5986

changelog: Fix FPs in match_overlapping_arm, when first arm is completely included in second arm
2021-01-31 15:09:55 +00:00
flip1995
ac912be984 Merge commit '95c0459217d1661edfa794c8bb122452b92fb485' into clippyup 2021-01-30 18:06:34 +01:00
bors
a982ab4cee Auto merge of #6532 - matthiaskrgr:mlmm, r=llogiq
match_like_matches_macro: strip refs in suggestion

fixes #6503

changelog: match_like_matches_macro: strip refs in suggestion (#6503)
2021-01-21 18:34:55 +00:00
ThibsG
70704db36f Do not lint when range is completely included into another one 2021-01-17 21:07:01 +01:00
Jason Newcomb
36ff2f739c
Rename function 2021-01-14 22:02:04 -05:00
Jason Newcomb
85edd65bf6
Address review comments
Add: attempt to remove address of expressions from the scrutinee expression before adding references to the pattern
2021-01-14 14:26:26 -05:00
Jason Newcomb
8d7417d807
Add: single_match will suggest using if .. == .. instead of if let when applicable 2021-01-10 23:32:23 -05:00
Matthias Krüger
39f39d5405 match_like_matches_macro: strip refs in suggestion
fixes #6503

changelog: match_like_matches_macro: strip refs in suggestion (#6503)
2021-01-03 20:28:46 +01:00
flip1995
f03edfd7a1 Merge commit '4911ab124c481430672a3833b37075e6435ec34d' into clippyup 2020-12-20 17:19:49 +01:00
xFrednet
a37af06fea Removing false positive for the match_single_binding lint
* Applying suggested changes from the PR
2020-12-13 20:49:39 +00:00
bors
50bca8af1d Auto merge of #6330 - camsteffen:redundant-else, r=ebroto
Add Redundant else lint

changelog: Add redundant_else lint

It seemed appropriate for "pedantic".

Closes #112 \*blows off dust*
2020-12-08 00:51:51 +00:00
flip1995
8eca423ea1 Merge commit 'c1664c50b27a51f7a78c93ba65558e7c33eabee6' into clippyup 2020-12-06 15:01:03 +01:00
Philipp Krones
e2ecc4ad6e
Rollup merge of #6402 - camsteffen:collapsible-match, r=llogiq
Add Collapsible match lint

changelog: Add collapsible_match lint

Closes #1252
Closes #2521

This lint finds nested `match` or `if let` patterns that can be squashed together. It is designed to be very conservative to only find cases where merging the patterns would most likely reduce cognitive complexity.

Example:

```rust
match result {
    Ok(opt) => match opt {
        Some(x) => x,
        _ => return,
    }
    _ => return,
}
```
to
```rust
match result {
    Ok(Some(x)) => x,
    _ => return,
}
```

These criteria must be met for the lint to fire:

* The inner match has exactly 2 branches.
* Both the outer and inner match have a "wild" branch like `_ => ..`. There is a special case for `None => ..` to also be considered "wild-like".
* The contents of the wild branches are identical.
* The binding which "links" the matches is never used elsewhere.

Thanks to the hir, `if let`'s are easily included with this lint since they are desugared into equivalent `match`'es.

I think this would fit into the style category, but I would also understand changing it to pedantic.
2020-12-03 10:21:33 +01:00
Cameron Steffen
70f6a2cae2 Eat redundant else dogfood 2020-11-29 17:55:42 -06:00
Cameron Steffen
fff5fa6581 Eat collapsible_match dogfood 2020-11-29 15:34:11 -06:00
Suyash458
cd087e5c5e add rustc-semver to dependencies
switch Version/VersionReq usages to RustcVersion
2020-11-28 21:21:04 -08:00
bors
68cf94f6a6 Auto merge of #6377 - CDirkx:redundant-pattern-match-ipaddr, r=ebroto
Enhance `redundant_pattern_matching` to also lint on `std::net::IpAddr`

Follow-up to #6339
r? `@ebroto`

(note: also contains a small cleanup of the other ui tests)

changelog: Enhance [`redundant_pattern_matching`] to also lint on `std::net::IpAddr`
2020-11-28 23:02:47 +00:00
Philipp Krones
84cdb0a939
Fix formatting 2020-11-28 22:40:46 +01:00
Philipp Krones
22e7775aa7
Change formulation of known problems section 2020-11-28 18:58:53 +01:00
Aleksei Latyshev
e266708c42
do not trigger MATCH_LIKE_MATCHES_MACRO lint with attrs
- it can't be solved completely for attrs evaluated into `false`
- change applicability to MaybeIncorrect and mention it in docs
2020-11-28 20:28:07 +03:00
flip1995
b2e2c0806e
Improve extract_msrv_attr! situation 2020-11-25 12:22:58 +01:00
Suyash458
aaa4325045
add support for minimum supported rust version.
add configuration option for minimum supported rust version
add msrv attribute to some lints listed in #6097
add tests
2020-11-25 12:22:47 +01:00
Christiaan Dirkx
dc075b4266 Change redundant_pattern_matching to also lint std::net::IpAddr
Suggest using utility methods `is_ipv4` and `is_ipv6`.
2020-11-25 02:01:05 +01:00
Christiaan Dirkx
5a83968877 Change redundant_pattern_matching to also lint std::task::Poll
Suggest using utility methods `is_pending` and `is_ready`.
2020-11-17 23:40:31 +01:00