Commit graph

4662 commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
bors
eceebc3448 Auto merge of #6183 - cgm616:hex_bin_digit_grouping, r=flip1995
Hex bin digit grouping

This revives and updates an old pr (#3391) for the current API.

Closes #2538.

---

*Please keep the line below*
changelog: Add [`unusual_byte_groupings`] lint.
2020-10-25 16:40:14 +00:00
flip1995
77746b9060
Merge remote-tracking branch 'upstream/master' into rustup 2020-10-25 16:43:53 +01:00
cgm616
312bbff696
Integrate suggestions from code review 2020-10-25 11:31:24 -04:00
Takayuki Nakata
3ce820bf83 Fix an invalid suggestion in needless_collect test 2020-10-25 23:58:14 +09:00
cgm616
e7e4b35bdf Fix logic mistake 2020-10-25 09:34:46 -04:00
cgm616
f5a88b6de5 Allow hex literals to pass w/ groups of 2 2020-10-25 09:18:38 -04:00
Florian Hartwig
db8380c4a0 Add lint for unusually-grouped hex/binary literals 2020-10-25 09:18:38 -04:00
bors
9c9aa2db52 Auto merge of #6222 - JohnTitor:redundant-local-def-id, r=flip1995
Remove redundant `expect_local()` call

The field `owner` of `HirId` is `LocalDefId` and `hir_id.owner.to_def_id().expect_local()` is redundant. I wonder they were introduced in some rustups.

changelog: none
2020-10-25 11:58:51 +00:00
bors
718bb28f68 Auto merge of #6211 - ThibsG:NeedlessBoolCfg, r=flip1995
No lint with `cfg!` and fix sugg for macro in `needless_bool` lint

Don't lint if `cfg!` macro is one of the operand.
Fix suggestion when the span originated from a macro, using `hir_with_macro_callsite`.

Fixes: #3973

changelog: none
2020-10-25 11:37:18 +00:00