Commit graph

5042 commits

Author SHA1 Message Date
bors
df3bb5881d Auto merge of #6336 - giraffate:sync-from-rust, r=flip1995
Rustup

changelog: none
2020-11-16 08:23:27 +00:00
LeSeulArtichaut
1b55cc79cc Set the default BreakTy to ! 2020-11-14 21:46:39 +01:00
LeSeulArtichaut
cbb6b1c338 Introduce TypeVisitor::BreakTy 2020-11-14 20:25:27 +01:00
Fabian Zaiser
864e554b9a Add underscore expressions for destructuring assignments
Co-authored-by: varkor <github@varkor.com>
2020-11-14 13:53:12 +00:00
bors
408b615d34 Auto merge of #6320 - giraffate:fix_suggestion_in_manual_range_contains_using_float, r=llogiq
Fix suggestion in `manual_range_contains` when using float

Fix #6315

changelog: Fix suggestion in `manual_range_contains` when using float
2020-11-14 08:06:00 +00:00
bors
cf7b4b0fe6 Auto merge of #6329 - giraffate:sync-from-rust, r=matthiaskrgr
Rustup

changelog: none
2020-11-13 10:49:21 +00:00
Takayuki Nakata
c6b74df680 Fix dogfood test 2020-11-13 14:47:23 +09:00
Mara Bos
3a648ffc02 Rollup merge of #78836 - fanzier:struct-and-slice-destructuring, r=petrochenkov
Implement destructuring assignment for structs and slices

This is the second step towards implementing destructuring assignment (RFC: rust-lang/rfcs#2909, tracking issue: #71126). This PR is the second part of #71156, which was split up to allow for easier review.

Note that the first PR (#78748) is not merged yet, so it is included as the first commit in this one. I thought this would allow the review to start earlier because I have some time this weekend to respond to reviews. If ``@petrochenkov`` prefers to wait until the first PR is merged, I totally understand, of course.

This PR implements destructuring assignment for (tuple) structs and slices. In order to do this, the following *parser change* was necessary: struct expressions are not required to have a base expression, i.e. `Struct { a: 1, .. }` becomes legal (in order to act like a struct pattern).

Unfortunately, this PR slightly regresses the diagnostics implemented in #77283. However, it is only a missing help message in `src/test/ui/issues/issue-77218.rs`. Other instances of this diagnostic are not affected. Since I don't exactly understand how this help message works and how to fix it yet, I was hoping it's OK to regress this temporarily and fix it in a follow-up PR.

Thanks to ``@varkor`` who helped with the implementation, particularly around the struct rest changes.

r? ``@petrochenkov``
2020-11-12 19:46:09 +01:00
Takayuki Nakata
8f89108533 Fix FP in indirect needless_collect when used multiple times 2020-11-12 23:29:16 +09:00
bors
bd13a35856 Auto merge of #6325 - flip1995:rustup, r=flip1995
Rustup

r? `@ghost`

changelog: none
2020-11-12 07:40:33 +00:00
bors
92ece84873 Auto merge of #78782 - petrochenkov:nodoctok, r=Aaron1011
Do not collect tokens for doc comments

Doc comment is a single token and AST has all the information to re-create it precisely.
Doc comments are also responsible for majority of calls to `collect_tokens` (with `num_calls == 1` and `num_calls == 0`, cc https://github.com/rust-lang/rust/pull/78736).

(I also moved token collection into `fn parse_attribute` to deduplicate code a bit.)

r? `@Aaron1011`
2020-11-12 00:33:55 +00:00
Takayuki Nakata
5f64867e1d Fix suggestion in manual_range_contains when using float 2020-11-11 22:44:48 +09:00
Fabian Zaiser
5f310d9b83 Implement destructuring assignment for structs and slices
Co-authored-by: varkor <github@varkor.com>
2020-11-11 12:10:52 +00:00
Ikko Ashimine
f92f8d095d Fix typo in comment
occurences -> occurrences
2020-11-11 20:23:08 +09:00
rsulli55
56d252c53d Update clippy_lints/src/methods/mod.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-10 23:18:48 -07:00
Ryan Sullivant
fd303132a2 Cleaned up message and suggestion for lint_search_is_some 2020-11-10 23:18:48 -07:00
Ryan Sullivant
ee1b959054 Added period back to lint search_is_some and ran
`update-all-references.sh`
2020-11-10 23:18:47 -07:00
rsulli55
fb74b4802e Remove borrow
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-10 23:18:47 -07:00
rsulli55
e9612f3eca Remove to_string on msg
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-10 23:18:47 -07:00
Ryan Sullivant
a1cf2d334d Added a lint as suggested in 6010 which recommends using contains()
instead of `find()` follows by `is_some()` on strings

Update clippy_lints/src/find_is_some_on_strs.rs
Co-authored-by: Takayuki Nakata <f.seasons017@gmail.com>

Update clippy_lints/src/methods/mod.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-10 23:18:47 -07:00
bors
c4fc076e11 Auto merge of #6269 - camsteffen:map-clone-deref, r=ebroto
Fix map_clone with deref and clone

changelog: Fix map_clone false positive with deref coercion

Fixes #6239
2020-11-11 00:48:33 +00:00
Cameron Steffen
769094410a Fix map_clone with deref and clone 2020-11-10 18:37:17 -06:00
Eduardo Broto
effcb52bbf Run cargo dev fmt 2020-11-10 22:33:02 +01:00
Eduardo Broto
3ea6f77446 Merge remote-tracking branch 'upstream/master' into rustup 2020-11-10 22:32:24 +01:00
bors
dd826b4626 Auto merge of #6305 - smoelius:master, r=flip1995
Add `let_underscore_drop`

This line generalizes `let_underscore_lock` (#5101) to warn about any initializer expression that implements `Drop`.

So, for example, the following would generate a warning:
```rust
struct Droppable;
impl Drop for Droppable {
    fn drop(&mut self) {}
}
let _ = Droppable;
```

I tried to preserve the original `let_underscore_lock` functionality in the sense that the warning generated for
```rust
let _ = mutex.lock();
```
should be unchanged.

*Please keep the line below*
changelog: Add lint [`let_underscore_drop`]
2020-11-09 19:13:26 +00:00
Dylan DPC
6294300b8e Rollup merge of #78710 - petrochenkov:macvisit, r=davidtwco
rustc_ast: Do not panic by default when visiting macro calls

Panicking by default made sense when we didn't have HIR or MIR and everything worked on AST, but now all AST visitors run early and majority of them have to deal with macro calls, often by ignoring them.

The second commit renames `visit_mac` to `visit_mac_call`, the corresponding structures were renamed earlier in https://github.com/rust-lang/rust/pull/69589.
2020-11-09 19:06:55 +01:00
bors
d212c382c3 Auto merge of #6278 - ThibsG:DerefAddrOf, r=llogiq
Fix bad suggestions for `deref_addrof` and `try_err` lints

Fix bad suggestions when in macro expansion for `deref_addrof` and `try_err` lints.

Fixes: #6234
Fixes: #6242
Fixes: #6237

changelog: none

r? `@llogiq`
2020-11-09 05:25:04 +00:00
Vadim Petrochenkov
8845f10e94 Do not collect tokens for doc comments 2020-11-09 01:47:11 +03:00
Samuel E. Moelius III
40d7af50ed Update lints 2020-11-08 17:33:54 -05:00
Samuel E. Moelius
8211b597ba
Update clippy_lints/src/let_underscore.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-08 17:25:50 -05:00
Samuel E. Moelius
9751cba2c6
Update clippy_lints/src/let_underscore.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-08 17:25:23 -05:00
Samuel E. Moelius
aa6bf1f90d
Update clippy_lints/src/let_underscore.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-08 17:24:55 -05:00
Cameron Steffen
9cab08465b Fix or_fun_call for index operator 2020-11-08 14:49:42 -06:00
Cameron Steffen
b0994064b0 Make KNOW_TYPES static 2020-11-08 14:34:06 -06:00
bors
7079de9b35 Auto merge of #6293 - Urcra:lint-example-fix, r=flip1995
Fix example used in cargo_common_metadata

The previous example used in `cargo_common_metadata`  included an authors field, even though the comment says it doesn't. And thus doesn't actually demonstrate an example of how the lint fails.

This removes that authors field from the _bad_ example and suggest to fix the _bad_ example by adding the authors field

changelog: Fix example used in `cargo_common_metadata`
2020-11-08 14:24:58 +00:00
bors
b1faa7f002 Auto merge of #6271 - camsteffen:vec-box-import, r=flip1995
Fix vec_box scope error

changelog: Fix vec_box suggestion with wrong type scope

Fixes #6236
2020-11-08 12:02:30 +00:00
Samuel E. Moelius III
f1f780c942 Add let_underscore_drop 2020-11-08 07:00:35 -05:00
Joseph Richey
3579b7de24
Update clippy_lints/src/loops.rs
Fix NITs

Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-11-08 12:38:10 +01:00
Joe Richey
c6a91df838
Enable empty_loop lint for no_std crates
We skip the lint if the `loop {}` is in the `#[panic_handler]` as the
main recommendation we give is to panic, which obviously isn't
possible in a panic handler.

Signed-off-by: Joe Richey <joerichey@google.com>
2020-11-08 12:38:10 +01:00
bors
96d5f45ade Auto merge of #6301 - alex-700:fix-map-clone, r=matthiaskrgr
do not trigger map_clone in the case of &mut

fixes #6299
changelog: do not trigger map_clone in the case of &mut
2020-11-08 01:28:27 +00:00
bors
c015622568 Auto merge of #6304 - matthiaskrgr:crash_6302, r=llogiq
FROM_ITER_INSTEAD_OF_COLLECT: avoid unwrapping unconditionally

Fixes #6302

changelog: fix unwrap of None when checking libcore with clippy
2020-11-07 18:10:35 +00:00
bors
5effc99812 Auto merge of #6298 - JohnTitor:fix-example, r=llogiq
Fix `await_holding_refcell_ref` examples for clarify

- Remove redundant `()`
- Fix variable name

changelog: none
2020-11-07 17:48:46 +00:00
bors
92ba07582e Auto merge of #6134 - patrickelectric:as_utf8, r=llogiq
Check when `from_utf8` is called from sliced byte array from string

---

*Please keep the line below*
changelog: Fix #5487: Add linter to check when `from_utf8` is called from sliced byte array from string.
2020-11-07 17:06:27 +00:00
bors
694cec12be Auto merge of #6110 - rail-rain:care_enums_non_copy_const, r=llogiq
"Respect" enums in `interior_mutable_const`

fixes #3962
fixes #3825

Hello,

It might not be a good idea to submit another relatively large PR while I have an opened PR; but, I've finished this anyway. This may be able to wait for months.

Note: the code uses the MIR interpreter, which the author of #3962 thought unlikely to be a solution. This might be over-engineering; but, I think it's important to be able to work with the 'http' crate (#3825). (And, I don't want to write a MIR visitor)

---

changelog: fix a false positive in two `interior_mutable_const` lints where a constant with enums gets linted
even if it uses a clearly unfrozen variant
2020-11-07 15:51:13 +00:00
bors
4bbef42c48 Auto merge of #6272 - camsteffen:unnecesary-lazy-eval-type, r=llogiq
Fix unnecessary_lazy_eval suggestion applicability

changelog: Fix unnecessary_lazy_eval suggestion applicability when breaking type inference

Fixes #6240
2020-11-07 10:01:46 +00:00
Matthias Krüger
5253595b3b FROM_ITER_INSTEAD_OF_COLLECT: avoid unwrapping unconditionally
Fixes #6302
2020-11-06 19:34:34 +01:00
Takayuki Nakata
b7892c6a26 Refactor to make getting position just before RArrow a common function 2020-11-06 22:54:38 +09:00
Aleksei Latyshev
5f57608604
do not trigger map_clone in the case of &mut 2020-11-06 14:38:46 +03:00
Takayuki Nakata
1624b00bde Fix suggestion to add unneeded space in manual_async 2020-11-06 08:40:43 +09:00
Yuki Okushi
1e4ce0fcaa Fix await_holding_refcell_ref examples for clarify 2020-11-06 04:02:41 +09:00
ThibsG
83e75f9207 Fix incorrect suggestion for try_err lint when Err arg is itself a macro 2020-11-05 18:00:34 +01:00
flip1995
34244190d4 Merge commit 'b20d4c155d2fe3a8391f86dcf9a8c49e17188703' into clippyup 2020-11-05 14:29:48 +01:00
bors
b20d4c155d Auto merge of #6296 - flip1995:rustup, r=flip1995
Rustup

r? `@ghost`

changelog: none
2020-11-05 13:14:26 +00:00
ThibsG
f83762b79c Skip rustfmt as it is wanted for this test 2020-11-05 09:14:20 +01:00
Patrick José Pereira
bc27d1492d Add string_from_utf8_as_bytes linter
Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>
2020-11-04 21:17:46 -03:00
bors
0c1531a5c4 Auto merge of #78662 - sexxi-goose:add_expr_id_to_delegate, r=nikomatsakis
Provide diagnostic suggestion in ExprUseVisitor Delegate

The [Delegate trait](981346fc07/compiler/rustc_typeck/src/expr_use_visitor.rs (L28-L38)) currently use `PlaceWithHirId` which is composed of Hir `Place` and the
corresponding expression id.

Even though this is an accurate way of expressing how a Place is used,
it can cause confusion during diagnostics.

Eg:

```
let arr : [String; 5];

let [a, ...]     =   arr;
 ^^^ E1 ^^^      =  ^^E2^^
 ```

 Here `arr` is moved because of the binding created E1. However, when we
 point to E1 in diagnostics with the message `arr` was moved, it can be
 confusing.  Rather we would like to report E2 to the user.

 Closes: https://github.com/rust-lang/project-rfc-2229/issues/20

r? `@ghost`
2020-11-04 22:45:15 +00:00
bors
0d2f1aef02 Auto merge of #6247 - giraffate:fix_suggestion_to_add_space_in_unused_unit, r=ebroto
Fix suggestion to add unneeded space in `unused_unit`

Fix https://github.com/rust-lang/rust-clippy/issues/6230

changelog: Fix suggestion to add unneeded space in `unused_unit`
2020-11-04 22:42:10 +00:00
Urcra
a4acb3164a Fix example for cargo common data 2020-11-04 23:39:52 +01:00
bors
5b52474ae6 Auto merge of #5911 - hegza:issue-568, r=ebroto
Add lint for 'field_reassign_with_default` #568

changelog: Add lint for field_reassign_with_default that checks if mutable object + field modification is used to edit a binding initialized with Default::default() instead of struct constructor.

Fixes #568

Notes:
- Checks for reassignment of one or more fields of a binding initialized with Default::default().
- Implemented using EarlyLintPass, might be future proofed better with LateLintPass.
- Does not trigger if Default::default() is used via another type implementing Default.
- This is a re-open of [PR#4761](https://github.com/rust-lang/rust-clippy/pull/4761), but I couldn't figure out how to re-open that one so here's a new one with the requested changes :S
2020-11-04 22:21:44 +00:00
Eduardo Broto
f5166e81b1 Run cargo dev fmt 2020-11-04 22:41:15 +01:00
Eduardo Broto
834ad5c516 Merge remote-tracking branch 'upstream/master' into rustup 2020-11-04 22:37:11 +01:00
oli
83edb2f4e4 s/Scalar::Raw/Scalar::Int 2020-11-04 10:11:31 +00:00
Oliver Scherer
6fdbde5f46 Split the "raw integer bytes" part out of Scalar 2020-11-04 09:58:59 +00:00
bors
c2cf40cdcd Auto merge of #6284 - camsteffen:rustc-sym, r=flip1995
Use const sym where possible

I ran a regex search and replace to use const `sym` values where possible. This should give some performance boost by avoiding string interning at runtime.

Con: It is not as consistent as always using `sym!`.

I also changed an internal lint to suggest using `sym::{}`, making an assumption that this will always work for diagnostic items.

changelog: none
2020-11-04 09:22:54 +00:00
Vadim Petrochenkov
c2a769f84c rustc_ast: visit_mac -> visit_mac_call 2020-11-03 23:39:51 +03:00
Vadim Petrochenkov
89fa373059 rustc_ast: Do not panic by default when visiting macro calls 2020-11-03 20:38:20 +03:00
bors
225ce5ff58 Auto merge of #6233 - montrivo:manual_ok_or, r=flip1995
add manual_ok_or lint

Implements partially #5923

changelog: add lint manual_ok_or
2020-11-03 16:42:59 +00:00
bors
2fe87a89c9 Auto merge of #6165 - dvermd:ref_option_ref, r=flip1995
Add lint 'ref_option_ref' #1377

This lint checks for usage of `&Option<&T>` which can be simplified as `Option<&T>` as suggested in #1377.

This WIP PR is here to get feedback on the lint as there's more cases to be handled:
* statics/consts,
* associated types,
* type alias,
* function/method parameter/return,
* ADT definitions (struct/tuple struct fields, enum variants)

changelog: Add 'ref_option_ref' lint
2020-11-03 16:21:51 +00:00
bors
a2bf404d34 Auto merge of #6101 - pitiK3U:from_iter_instead_of_collect, r=flip1995
Add lint: from_iter_instead_of_collect

Fixes #5679

This implements lint for `::from_iter()` from #5679 not the general issue (`std::ops::Add::add`, etc.).
This lint checks if expression is function call with `from_iter` name and if it's implementation of the `std::iter::FromIterator` trait.

changelog: Introduce  from_iter_instead_of_collect lint
2020-11-03 15:59:16 +00:00
Piti the little Light
ddf23d649a
Fix: Use .collect() instead of ::fromIterator() 2020-11-03 16:44:24 +01:00
Piti the little Light
52d1ea3c9a
Fix: Don't show lint for types that doesn't implement Iterator 2020-11-03 16:44:24 +01:00
Piti the little Light
f359fb872b
Improve error message 2020-11-03 16:44:24 +01:00
Piti the little Light
abdb7aeb55
Remove backticks 2020-11-03 16:44:24 +01:00
Piti the little Light
854f2cef06
Run cargo dev fmt 2020-11-03 16:44:24 +01:00
Piti the little Light
e320dd3042
Improve: error message 2020-11-03 16:44:23 +01:00
Piti the little Light
8906040445
Improvements from PR feedback 2020-11-03 16:44:21 +01:00
Piti the little Light
8a5d78b71a
Fix from_iter_instead_of_collect lint crashing on exprs without path segment 2020-11-03 16:42:30 +01:00
Piti the little Light
9d6eedf5f2
Run cargo dev update_lints 2020-11-03 16:42:30 +01:00
Piti the little Light
315bab0ea1
Add from_iter_instead_of_collect lint implementation 2020-11-03 16:42:28 +01:00
bors
3ee9c2e1a0 Auto merge of #6037 - matthiaskrgr:single_char_insert, r=flip1995
single_char_insert_str: lint using insert_str() on single-char literals and suggest insert()

Fixes #6026

changelog: add single_char_insert_str lint which lints using string.insert_str() with single char literals and suggests string.insert() with a char
2020-11-03 15:36:33 +00:00
Cameron Steffen
a6611de75a Include bindings as machine applicable 2020-11-02 12:57:37 -06:00
Cameron Steffen
b2332a7357 Change lint to use const sym 2020-11-02 11:52:17 -06:00
Cameron Steffen
22cc77a232 Use const rustc sym where possible 2020-11-02 11:46:37 -06:00
ThibsG
ce98468158 Fix incorrect suggestion when from expansion in try_err lint 2020-11-02 18:08:38 +01:00
ThibsG
343bdb3364 Give better suggestion by working on span on deref_addrof lint 2020-11-02 18:08:38 +01:00
ThibsG
158bf9aa44 Fix incorrect suggestion for macro expansion in deref_addrof lint 2020-11-02 18:08:38 +01:00
Dhruv Jauhar
5f973264bd Provide diagnostic suggestion in ExprUseVisitor Delegate
The [Delegate
trait](981346fc07/compiler/rustc_typeck/src/expr_use_visitor.rs (L28-L38))
currently use `PlaceWithHirId` which is composed of Hir `Place` and the
corresponding expression id.

Even though this is an accurate way of expressing how a Place is used,
it can cause confusion during diagnostics.

Eg:

```
let arr : [String; 5];

let [a, ...]     =   arr;
 ^^^ E1 ^^^      =  ^^E2^^
 ```

 Here `arr` is moved because of the binding created E1. However, when we
 point to E1 in diagnostics with the message `arr` was moved, it can be
 confusing.  Rather we would like to report E2 to the user.

 Closes: https://github.com/rust-lang/project-rfc-2229/issues/20
2020-11-02 01:31:34 -05:00
Takayuki Nakata
4a3a249cb6 Merge remote-tracking branch 'upstream/master' into sync-from-rust 2020-11-02 10:34:49 +09:00
bors
8a18963f28 Auto merge of #75534 - Aaron1011:feature/new-future-breakage, r=pnkfelix
Implement rustc side of report-future-incompat

cc https://github.com/rust-lang/rust/issues/71249

This is an alternative to `@pnkfelix's` initial implementation in https://github.com/pnkfelix/rust/commits/prototype-rustc-side-of-report-future-incompat (mainly because I started working before seeing that branch 😄 ).

My approach outputs the entire original `Diagnostic`, in a way that is compatible with incremental compilation. This is not yet integrated with compiletest, but can be used manually by passing `-Z emit-future-incompat-report` to `rustc`.

Several changes are made to support this feature:
* The `librustc_session/lint` module is moved to a new crate `librustc_lint_defs` (name bikesheddable). This allows accessing lint definitions from `librustc_errors`.
* The `Lint` struct is extended with an `Option<FutureBreakage>`. When present, it indicates that we should display a lint in the future-compat report. `FutureBreakage` contains additional information that we may want to display in the report (currently, a `date` field indicating when the crate will stop compiling).
* A new variant `rustc_error::Level::Allow` is added. This is used when constructing a diagnostic for a future-breakage lint that is marked as allowed (via `#[allow]` or `--cap-lints`). This allows us to capture any future-breakage diagnostics in one place, while still discarding them before they are passed to the `Emitter`.
* `DiagnosticId::Lint` is extended with a `has_future_breakage` field, indicating whether or not the `Lint` has future breakage information (and should therefore show up in the report).
* `Session` is given access to the `LintStore` via a new `SessionLintStore` trait (since `librustc_session` cannot directly reference `LintStore` without a cyclic dependency). We use this to turn a string `DiagnosticId::Lint` back into a `Lint`, to retrieve the `FutureBreakage` data.

Currently, `FutureBreakage.date` is always set to `None`. However, this could potentially be interpreted by Cargo in the future.

I've enabled the future-breakage report for the `ARRAY_INTO_ITER` lint, which can be used to test out this PR. The intent is to use the field to allow Cargo to determine the date of future breakage (as described in [RFC 2834](https://github.com/rust-lang/rfcs/blob/master/text/2834-cargo-report-future-incompat.md)) without needing to parse the diagnostic itself.

cc `@pnkfelix`
2020-11-01 16:52:28 +00:00
Henri Lunnikivi
7b203f3da6 Implement field_reassign_with_default
- Implement `field_reassign_with_default` as a `LateLintPass`
- Avoid triggering `default_trait_access` on a span already linted by
`field_reassigned_with_default`
- Merge `default_trait_access` and `field_reassign_with_default` into
`Default`
- Co-authored-by: Eduardo Broto <ebroto@tutanota.com>
- Fixes #568
2020-10-31 15:49:58 +02:00
Eduardo Broto
2eb248dd16 Fix formatting 2020-10-31 09:34:01 +01:00
Eduardo Broto
9d73371663 Merge remote-tracking branch 'upstream/master' into rustup 2020-10-31 09:33:40 +01:00
Aaron Hill
4bbc7712fc Update Clippy path to Lint 2020-10-30 21:41:16 -04:00
Eduardo Broto
f8ac1f99ef Address suggestions in PR review 2020-10-30 23:47:22 +01:00
Eduardo Broto
d958269fe5 Rename single_char_push_str to single_char_add_str 2020-10-30 23:29:44 +01:00
Matthias Krüger
c1eb8ceede get_hint_if_single_char_arg: fix bug where multi-char letters are not detected properly 2020-10-30 23:29:44 +01:00
Matthias Krüger
c6412aeebc handle macros returning Strings in single_char_push_str and single_char_insert_str 2020-10-30 23:29:38 +01:00
Matthias Krüger
2350ee75b2 single_char_push_str lint using insert_str() on single-char literals and suggest insert()
changelog: single_char_push_str: lint using string.insert_str() with single char literals and suggests string.insert() with a char

Fixes #6026
2020-10-30 23:28:17 +01:00
bors
7387b87bb9 Auto merge of #6197 - ThibsG:ImproveFilterNext, r=ebroto
Improve suggestions for several lints

This PR is a follow-up of this [Zulip discussion](https://rust-lang.zulipchat.com/#narrow/stream/257328-clippy/topic/filter_next.20lint).

It unifies placeholders for `methods` module and improves several suggestions for `filter_next`, `filter_map_next` and `map_unwrap_or` lints.

changelog: none
2020-10-30 21:58:09 +00:00
Cameron Steffen
c0d1002d93 Fix unnecessary_lazy_eval suggestion applicability
Fixes #6240
2020-10-30 16:10:01 -05:00
Cameron Steffen
7c74d870b5 Fix vec_box scope error
Fixes #6236
2020-10-30 13:09:27 -05:00
bors
0be654482c Auto merge of #6229 - henil:improve-integer-division-lint, r=phansch
Update the existing arithmetic lint

re: #6209

Updates the lint to not the error message if RHS of binary operation `/` of `%` is a literal/constant that is not `0` or `-1`, as suggested [here](https://github.com/rust-lang/rust-clippy/issues/6209#issuecomment-715624354)

changelog: Expand [`integer_arithmetic`] to work with RHS literals and constants
2020-10-30 12:37:46 +00:00
henil
fa0a78b130 removed lint for division/modulo for literal 0 2020-10-30 17:31:10 +05:30
LeSeulArtichaut
1c8c3d14ef Remove implicit Continue type 2020-10-30 12:27:47 +01:00
LeSeulArtichaut
4a06145ced Use ControlFlow::is{break,continue} 2020-10-30 12:27:46 +01:00
LeSeulArtichaut
fa79cc4f6f TypeVisitor: use ControlFlow in clippy 2020-10-30 12:27:45 +01:00
bors
74d8fbb7a4 Auto merge of #6200 - rail-rain:borrowed_box_invalid_sugg, r=phansch
fix the error-causing suggestion of 'borrowed_box'

Fixes #3128

Fix the suggestion of 'borrowed_box', which causes a syntax error because it misses necessary parentheses.

---

changelog: Fix the error-causing suggestion of 'borrowed_box'
2020-10-30 10:40:44 +00:00
Tim Nielens
d780f61d7b add manual_ok_or / pr remarks 2020-10-29 19:08:54 +01:00
dvermd
230d9cbe36
Update clippy_lints/src/ref_option_ref.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-10-29 17:39:19 +01:00
bors
c57d8ae515 Auto merge of #6227 - HMPerson1:collect_map, r=phansch
Add lint for replacing `.map().collect()` with `.try_for_each()`

Fixes #6208

changelog: Add `map_collect_result_unit`
2020-10-29 15:34:15 +00:00
bors
e1a2845558 Auto merge of #6226 - Urcra:master, r=flip1995
Add lint for comparing to empty slices instead of using .is_empty()

Hey first time making a clippy lint

I added the implementation of the lint the `len_zero` since it shared a lot of the code, I would otherwise have to rewrite. Just tell me if the lint should use it's own file instead

changelog: Add lint for comparing to empty slices

Fixes #6217
2020-10-29 15:12:24 +00:00
bors
ee9da9a194 Auto merge of #6176 - achris:issues/578, r=phansch
Lint items after statements in local macro expansions

The items_after_statements lint was skipping all expansions.  Instead
we should still lint local macros.

Fixes #578

---

*Please keep the line below*
changelog: The items_after_statements now applies to local macro expansions
2020-10-29 14:51:41 +00:00
Christian Nielsen
e3de544c22
Remove empty lines in doc comment
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-10-29 15:49:42 +01:00
bors
e8de57c20d Auto merge of #6212 - ThibsG:MacroTopLevelRefArg, r=flip1995
No lint in macro for `toplevel_ref_arg`

Do not lint when the span is from a macro.

Question: shouldn't we extend this for external macros also ?

Fixes: #5849

changelog: none
2020-10-29 14:29:30 +00:00
henil
e97602e482 Update existing arithmetic lint and add new tests related to it. 2020-10-29 19:08:52 +05:30
Eduardo Broto
50419118b4 Merge commit '645ef505da378b6f810b1567806d1bcc2856395f' into clippyup 2020-10-28 23:36:07 +01:00
Eduardo Broto
a50d9e7af6 Deprecate temporary_cstr_as_ptr 2020-10-28 22:34:45 +01:00
Takayuki Nakata
8e988e1c66 Merge remote-tracking branch 'upstream/master' into sync-from-rust 2020-10-28 14:14:09 +09:00
Takayuki Nakata
4c58860cbf Fix suggestion to add unneeded space in unused_unit 2020-10-28 12:40:47 +09:00
Aleksei Latyshev
2b7dd31368
improve MATCH_LIKE_MATCHES_MACRO lint
- add tests
- refactor match_same_arms lint
- prioritize match_expr_like_matches_macro over match_same_arms
2020-10-27 23:45:58 +03:00
Aleksei Latyshev
09e7053607
simplify SpanlessEq::eq_path_segment 2020-10-27 20:44:41 +03:00
Michael Wright
f79c4afd3a Fix invalid paths 2020-10-27 07:43:38 +02:00
Michael Wright
66d56fefc5 Add invalid_paths internal lint 2020-10-27 07:42:13 +02:00
Tim Nielens
111b9023da add manual_ok_or lint 2020-10-27 01:57:04 +01:00
rail
e568a328f9 fix the error-causing suggestion of 'borrowed_box'
fix the error-causing suggestion of 'borrowed_box',
which missed parentheses and was ambiguous.
2020-10-27 12:11:09 +13:00
Nathan Whitaker
a1bb10e9b8 Remove lint from clippy 2020-10-26 18:19:48 -04:00
dvermd
8337c467e9 Change Applicability to MaybeIncorrect
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-10-26 22:34:43 +01:00
dvermd
ffddb669e0 clippy_lint: run after changing category to pendantic 2020-10-26 22:34:43 +01:00
dvermd
db40a07665 Update clippy_lints/src/ref_option_ref.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-10-26 22:34:43 +01:00
dvermd
7fd74c6bf6 clippy_lint: Add Known Problems message 2020-10-26 22:34:43 +01:00
dvermd
1566db704d Update clippy_lints/src/ref_option_ref.rs
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-10-26 22:34:43 +01:00
dvermd
8e26004a5f Update clippy_lints/src/ref_option_ref.rs doctest
Co-authored-by: Philipp Krones <hello@philkrones.com>
2020-10-26 22:34:43 +01:00
dvermd
b41b38cb7f clippy_lint: Refactor 'ref_option_ref' 2020-10-26 22:34:42 +01:00
dvermd
c1f3bab6b1 clippy_lint: Add 'ref_option_ref' remove unused import 2020-10-26 22:34:42 +01:00
dvermd
469b2fc781 clippy_lint: Add 'ref_option_ref' move to check_ty and add type alias test 2020-10-26 22:34:42 +01:00
dvermd
d1baa25f04 clippy_lint: Add 'ref_option_ref' refactor code 2020-10-26 22:34:42 +01:00
dvermd
213dbf7aac clippy_lint: Add 'ref_option_ref' 2020-10-26 22:34:40 +01:00
ThibsG
3fec6f568d Improve some suggestions for filter_map_next, filter_next and map_unwrap_or lints 2020-10-26 11:02:07 +01:00
ThibsG
2911d9c7de Use better placeholders for some methods lint messages 2020-10-26 11:02:07 +01:00
ThibsG
bab338685f No lint in external macro for toplevel_ref_arg 2020-10-26 10:14:03 +01:00
HMPerson1
f0cf3bdca1
Add lint for replacing .map().collect() with .try_for_each() 2020-10-25 21:20:57 -04:00
Urcra
45aa3ef8dd Remove unnecesary format 2020-10-26 01:55:44 +01:00
Urcra
4532dd9e43 run cargo fmt 2020-10-26 01:31:13 +01:00
Urcra
4cf5b5ff70 Run update lints 2020-10-26 01:21:34 +01:00
Urcra
deecfb5d13 Add description to lint 2020-10-26 01:02:10 +01:00
Urcra
4417af801d Revert changes to Cargo.toml file 2020-10-26 00:53:51 +01:00
Urcra
7f7faa1ccf Move implementation into len_zero.rs 2020-10-26 00:51:18 +01:00
Urcra
de5a6d3420 Initial implementation of comparison_to_empty 2020-10-26 00:31:25 +01:00
bors
83bb5ecec8 Auto merge of #6202 - giraffate:fix_invalid_suggestion_in_needless_collect_test, r=flip1995
Fix an invalid suggestion in `needless_collect` test

A test, https://github.com/rust-lang/rust-clippy/blob/master/tests/ui/needless_collect_indirect.rs#L11-L12, suggests following codes, but the suggested codes don't work. An example is here: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=6947d9f2806a83f41cc5eb8e39b09d0b.
```
error: avoid using `collect()` when not needed
  --> $DIR/needless_collect_indirect.rs:11:5
   |
LL | /     let indirect_contains = sample.iter().collect::<VecDeque<_>>();
LL | |     indirect_contains.contains(&&5);
   | |____^
   |
help: Check if the original Iterator contains an element instead of collecting then checking
   |
LL |
LL |     sample.iter().any(|x| x == &&5);
```

changelog: none
2020-10-25 17:35:33 +00:00
bors
15f6fb99e4 Auto merge of #6194 - giraffate:remove_an_extra_blank_line, r=flip1995
Remove an extra blank line in doc examples

It seems to be an extra blank line in doc example.

changelog: none

<img width="1141" alt="スクリーンショット 2020-10-19 10 32 21" src="https://user-images.githubusercontent.com/17407489/96392372-d0583200-11f6-11eb-9aab-f7e8f87eb04e.png">
2020-10-25 17:15:42 +00:00