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2750 Commits

Author SHA1 Message Date
Tim Nielens
79da7474b1 option_if_let_else - change misleading test file section 2020-09-16 19:59:51 +02:00
bors
61dd007536 Auto merge of #6042 - euclio:println-empty, r=flip1995 
{print,write}-with-newline: do not suggest empty format string

changelog: do not suggest empty format strings in `print-with-newline` and `write-with-newline`
 2020-09-16 17:16:07 +00:00
Andy Russell
0261e341fd
{print,write}-with-newline: do not suggest empty format string 2020-09-16 11:25:53 -04:00
Robin Schoonover
d0ddbb9d0d Extend testing of rc_buffer lint 2020-09-15 21:11:28 -06:00
Tim Nielens
6ba36bcfd3 option_if_let_else - distinguish pure from impure else expressions 2020-09-16 01:30:50 +02:00
Michael Wright
ecbe9ac0e9 manual-strip: Add additional test 2020-09-15 21:32:27 +02:00
Michael Wright
8b04c2d6e8 Merge branch 'master' into lint-5734 2020-09-15 21:21:35 +02:00
bors
0695f21994 Auto merge of #6043 - HaramanJohal:margin_of_error, r=matthiaskrgr 
clarify margin of error in wording of float comparison operator lint messages

fixes #6040

changelog: change wording of float comparison operator to make margin of error less ambiguous
 2020-09-15 17:17:31 +00:00
Eduardo Broto
d0b5663d30 Fix usage of backquotes in suggestion 2020-09-15 10:45:57 +02:00
Eduardo Broto
8afa7ed6ae Add internal lint MatchTypeOnDiagItem 2020-09-15 10:29:53 +02:00
Haraman Johal
4d73ccaa94 clarify margin of error in wording of float comparison operator lint messages 2020-09-15 00:20:31 +01:00
Robin Schoonover
2dd7175d60 Apply rc_buffer lint to Arc<T> 2020-09-14 17:08:14 -06:00
Robin Schoonover
1b5317f68b Add rc_buffer lint for Rc<String> and other buffer types 2020-09-14 17:08:14 -06:00
bors
f82e84c894 Auto merge of #5998 - deg4uss3r:master, r=yaahc 
Add map_err_ignore lint

In a large code base a lot of times errors are ignored by using something like:

```rust
foo.map_err(|_| Some::Enum)?;
```

This drops the original error in favor of a enum that will not have the original error's context. This lint helps catch throwing away the original error in favor of an enum without its context.

---

*Please keep the line below*
changelog: Added map_err_ignore lint
 2020-09-14 19:56:47 +00:00
Michael Wright
15244a88df Fix manual-strip dogfood errors 2020-09-14 06:11:35 +02:00
Michael Wright
d1f0f04a48 New lint: manual-strip 
Add a new lint, `manual-strip`, that suggests using the `str::strip_prefix`
and `str::strip_suffix` methods introduced in Rust 1.45 when the same
functionality is performed 'manually'.

Closes #5734
 2020-09-14 06:11:35 +02:00
bors
231444d989 Auto merge of #6035 - matthiaskrgr:try_into_show_type, r=flip1995 
useless_conversion: show type in error message.

changelog: useless_conversion: show type in error message.
 2020-09-13 18:57:55 +00:00
Takayuki Nakata
9ff7e5d984 Downgrade verbose_bit_mask to pedantic 2020-09-13 23:23:45 +09:00
Matthias Krüger
7ba1a8fec4 useless_conversion: show type in error message. 
changelog: useless_conversion: show type in error message.
 2020-09-13 12:50:39 +02:00
Matthias Krüger
2487f8f461 into_iter_on_ref: rephrase lint message: will not move the x -> will not consume the x 
imo that's a bit clearer.
 2020-09-11 16:52:25 +02:00
bors
0ab75c37b6 Auto merge of #5977 - xvschneider:AddLintPanicInResult, r=matthiaskrgr 
Add lint panic in result

### Change
Adding a new "restriction" lint that will emit a warning when using "panic", "unimplemented" or "unreachable" in a function of type option/result.

### Motivation
Some codebases must avoid crashes at all costs, and hence functions of type option/result must return an error instead of crashing.

### Test plan
Running:
TESTNAME=panic_in_result cargo uitest ---

changelog: none
 2020-09-10 16:22:20 +00:00
flip1995
a12828a80a Merge commit '5034d47f721ff4c3a3ff2aca9ef2ef3e1d067f9f' into clippyup 2020-09-10 17:47:07 +02:00
bors
5034d47f72 Auto merge of #5980 - matsujika:create-dir, r=flip1995 
Add a lint to prevent `create_dir` from being used

This closes #5950
changelog: none
 2020-09-10 14:34:22 +00:00
bors
55efa96659 Auto merge of #5931 - montrivo:unit-arg, r=flip1995 
improve the suggestion of the lint `unit-arg`

Fixes #5823
Fixes #6015

Changes
```
help: move the expression in front of the call...
  |
3 |     g();
  |
help: ...and use a unit literal instead
  |
3 |     o.map_or((), |i| f(i))
  |
```
into
```
help: move the expression in front of the call and replace it with the unit literal `()`
  |
3 |     g();
  |     o.map_or((), |i| f(i))
  |
```
changelog: improve the suggestion of the lint `unit-arg`
 2020-09-10 14:11:27 +00:00
bors
87a4495b5d Auto merge of #6027 - flip1995:rustup, r=flip1995 
Rustup

r? `@ghost`

changelog: none
 2020-09-10 13:25:39 +00:00
flip1995
2d56512580
Cleanup of rustup 2020-09-10 15:23:38 +02:00
Thom Chiovoloni
3a072131da Ah, right, rerun the scripts 2020-09-09 23:22:01 -07:00
Thom Chiovoloni
159178e5d4 Separate compare_exchange and compare_exchange_weak uitests 2020-09-09 14:32:38 -07:00
Thom Chiovoloni
61671a2268 Detect fetch_update misuse in invalid_atomic_ordering too 2020-09-09 14:15:54 -07:00
Thom Chiovoloni
6211599cca Extend invalid_atomic_ordering to detect misuse of compare_exchange{,_weak} 2020-09-09 14:15:54 -07:00
Vali Schneider
3550568a54 removing if chain and renaming lint 2020-09-09 14:02:34 -07:00
Matthias Krüger
de195f2d3d print the unit type () in related lint messages. 2020-09-09 17:59:13 +02:00
Tim Nielens
c8e9e52303 needless-lifetime / add test cases for nested elision sites 2020-09-09 10:08:45 +02:00
Ricky
d719b48543 Move map_err_ignore from style to pedantic 2020-09-08 19:37:14 -04:00
Aaron Hill
f23670ed68 Adjust Clippy for CONST_ITEM_MUTATION lint 
We no longer lint assignments to const item fields in the
`temporary_assignment` lint, since this is now covered by the
`CONST_ITEM_MUTATION` lint.

Additionally, we `#![allow(const_item_mutation)]` in the
`borrow_interior_mutable_const.rs` test. Clippy UI tests are run with
`-D warnings`, which seems to cause builtin lints to prevent Clippy
lints from running.
 2020-09-08 17:59:56 -04:00
Ricky
4f1c4a99d4 Fixed typo in lint and test 2020-09-08 12:05:18 -04:00
Hirochika Matsumoto
a899ad2e12 Change suggestion to create_dir_all({}) from std::fs::create_dir_all({}) 2020-09-08 23:35:19 +09:00
Takayuki Nakata
952c04674e Refactoring: tests in same_item_push 2020-09-08 23:03:15 +09:00
Takayuki Nakata
2c9f82e7d2 Add some tests to same_item_push 
Add tests in which the variable is initialized with a match expression and function call
 2020-09-08 22:45:27 +09:00
Tim Nielens
a60e5de90c needless-lifetime / nested elision sites / PR remarks 2020-09-08 02:41:38 +02:00
Takayuki Nakata
3d30ef7818 Restrict same_item_push to suppress false positives 
It emits a lint when the pushed item is a literal, a constant and an immutable binding that are initialized with those.
 2020-09-07 23:46:43 +09:00
Eduardo Broto
9fa9208bd5 Restrict unnecessary_sort_by to non-ref copy types 2020-09-07 00:19:17 +02:00
Tim Nielens
390a13b06c needless-lifetime - fix nested elision site FPs 2020-09-06 23:06:58 +02:00
bors
e9440cbcde Auto merge of #5997 - giraffate:fix_fp_about_clone_in_same_item_push, r=ebroto 
Fix FP in `same_item_push`

Don't emit a lint when the pushed item doesn't have Clone trait

Fix #5979

changelog: Fix FP in `same_item_push` not to emit a lint when the pushed item doesn't have Clone trait
 2020-09-05 20:27:17 +00:00
Takayuki Nakata
96b31a5b36 Fix FP when coercion kicks in 2020-09-06 00:02:35 +09:00
Ryan1729
db16fa26ce run tests/ui/update-all-references.sh 2020-09-04 20:16:02 -06:00
Eduardo Broto
23646e6583 Merge remote-tracking branch 'upstream/master' into sync-from-rust 2020-09-04 23:27:01 +02:00
bors
8829214764 Auto merge of #5994 - taiki-e:useless_attribute, r=phansch 
useless_attribute: Permit wildcard_imports and enum_glob_use

Fixes #5918

changelog: `useless_attribute`: Permit `wildcard_imports` and `enum_glob_use` on `use` items
 2020-09-03 05:33:03 +00:00
Michael Wright
93ce686b5d Update ui stderr with improved rustc output 
Related rust pull request: rust-lang/rust#76160
 2020-09-03 04:58:14 +02:00
Ricky
2387f68e43 Removed map_err suggestion in lint, and updated lint documentation example 2020-09-02 19:21:34 -04:00
Tim Nielens
b1f0e019fe Merge branch 'master' into unit-arg 2020-09-02 19:39:54 +02:00
bors
7f27b12288 Auto merge of #5996 - Koxiaet:master, r=ebroto 
Allow GraphQL in docs without backticks

changelog: Allow "GraphQL" in [`doc_markdown`] without backticks.
 2020-09-02 12:24:31 +00:00
Koxiaet
22c9940613 Add tests for allowed non-backticked identifiers in doc 2020-09-02 12:51:44 +01:00
Sasha
246f1f8a8e Improve recovery on malformed format call 
If a comma in a format call is replaced with a similar token, then we
emit an error and continue parsing, instead of stopping at this point.
 2020-09-02 13:18:19 +02:00
Ricky
202a80c927 Added tests for map_err, ignored map_err lint on drop_ref tests 2020-09-01 16:59:37 -04:00
Takayuki Nakata
aa7ffa5257 Fix FP in same_item_push 
Don't emit a lint when the pushed item doesn't have Clone trait
 2020-09-01 22:39:09 +09:00
Taiki Endo
2e4b4cebbb useless_attribute: Permit wildcard_imports and enum_glob_use 2020-09-01 12:09:32 +09:00
rail
afeb917fca Fix a fp in transmute_ptr_to_ptr 
Avoid firing the lint when `transmute` in const contexts
as dereferencing raw pointers in consts is unstable. cc #5959
 2020-09-01 11:51:32 +12:00
bors
67e18c2d5c Auto merge of #5993 - taiki-e:default_trait_access, r=phansch 
default_trait_access: Fix wrong suggestion

https://github.com/rust-lang/rust-clippy/issues/5975#issuecomment-683751131
> I think the underlying problem is clippy suggests code with complete parameters, not clippy triggers this lint even for complex types. AFAIK, If code compiles with `Default::default`, it doesn't need to specify any parameters, as type inference is working. (So, in this case, `default_trait_access` should suggest `RefCell::default`.)

Fixes #5975 Fixes #5990

changelog: `default_trait_access`: fixed wrong suggestion
 2020-09-01 15:05:16 +00:00
bors
066f105d67 Auto merge of #5992 - giraffate:fix_wrong_seggestion_in_collapsible_if, r=yaahc 
Fix the wrong suggestion when using macro in `collapsible_if`

Fix #5962

changelog: Fix the wrong suggestion when using macro in `collapsible_if`
 2020-08-31 19:41:13 +00:00
bors
8334a58c2f Auto merge of #5909 - khuey:async_yields_async, r=yaahc 
Add a lint for an async block/closure that yields a type that is itself awaitable.

This catches bugs of the form

tokio::spawn(async move {
    let f = some_async_thing();
    f // Oh no I forgot to await f so that work will never complete.
});

See the two XXXkhuey comments and the unfixed `_l` structure for things that need more thought.

*Please keep the line below*
changelog: none
 2020-08-31 19:20:30 +00:00
Taiki Endo
8b0aa6a00b default_trait_access: Fix wrong suggestion 2020-09-01 00:31:53 +09:00
Takayuki Nakata
001f9e45f2 Fix the wrong suggestion when using macro in collapsible_if 2020-09-01 00:05:53 +09:00
Hirochika Matsumoto
451ef78803 Use match_def_path instead of match_qpath 2020-08-31 22:40:47 +09:00
Vali Schneider
a424a2c167 changed check_impl_item to check_fn and added a few more test cases 2020-08-29 16:17:53 -07:00
Kyle Huey
c1d2b9376a Add a test for an async function. 2020-08-29 15:33:54 -07:00
Kyle Huey
4972989b61 Add a lint for an async block/closure that yields a type that is itself awaitable. 
This catches bugs of the form

tokio::spawn(async move {
    let f = some_async_thing();
    f // Oh no I forgot to await f so that work will never complete.
});
 2020-08-29 15:33:54 -07:00
Eduardo Broto
7a66e6502d or_fn_call: ignore nullary associated const fns 2020-08-29 01:20:49 +02:00
flip1995
282c59820b Merge commit '3d0b0e66afdfaa519d8855b338b35b4605775945' into clippyup 2020-08-28 18:43:25 +02:00
bors
3d0b0e66af Auto merge of #5774 - ThibsG:FixNewRetNoSelf, r=ebroto 
Fix FP in `new_ret_no_self`: trigger in trait def instead of impl block

Lint in trait def instead of impl block.

Fixes: #5435

changelog: none
 2020-08-28 11:54:07 +00:00
Hirochika Matsumoto
5574182b4d Add a new lint to prevent create_dir from being used 2020-08-28 18:45:28 +09:00
Vali Schneider
b006522393 added lint for todo and removed option 2020-08-27 16:55:23 -07:00
bors
07c5e9edb5 Auto merge of #5971 - giraffate:fix_fp_in_to_string_in_display, r=ebroto 
Fix FP in `to_string_in_display`

Don't emit a lint when `.to_string()` on anything that is not `self`

Fix #5967

changelog: Fix FP in `to_string_in_display` when calling `.to_string()` on anything that is not `self`
 2020-08-27 23:26:52 +00:00
Vali Schneider
459969f88f added restriction lint that prohibits the usage of unimplemented, unreachable or panic in a function of type result or option 2020-08-27 16:18:05 -07:00
Tim Nielens
f3ccbef2af unit-arg - pr comments 2020-08-27 19:36:28 +02:00
ThibsG
3cb75c2e5c Remove expansion restriction + fix doc and tests naming 2020-08-27 18:25:38 +02:00
ThibsG
2a3ee5fa85 Fix FP in new_ret_no_self: trigger in trait def instead of impl block 2020-08-27 18:25:38 +02:00
Takayuki Nakata
04bff17668 Fix FP in to_string_in_display 
Don't emit a lint when `.to_string()` on anything that is not `self`
 2020-08-27 23:37:47 +09:00
Jane Lusby
91024f1fde Add new lint to prevent usage of unwrap in fns that return result 2020-08-26 16:31:49 -07:00
bors
64c4bb0d2b Auto merge of #5966 - 1c3t3a:1c3t3a-dev-5819-fix, r=Manishearth 
Corrects the float_equality_without_abs lint

Fixes an issue in the `float_equality_without_abs` lint. The lint suggestion was configured in a way that it lints the whole error and not just the subtraction part. In the current configuration the lint would suggest to change the expression in a wrong way, e.g.
```rust
let _ = (a - b) < f32::EPSILON; // before
let _ = (a - b).abs(); // after
```
This was dicovered by @flip1995. (See discussion of PR #5952).

Also the suggestion is now formatted via `utils::sugg`.
changelog: none
 2020-08-26 18:15:42 +00:00
Bastian
2d853148d7 Changed the location of the suggestion as well as the way the suggestion is assembled 2020-08-26 16:39:30 +02:00
bors
894581b872 Auto merge of #5946 - mikerite:fix-5729, r=flip1995 
Fix `let_and_return` bad suggestion

Add a cast to the suggestion when the return expression has adjustments.
These adjustments are lost when the suggestion is applied.

This is similar to the problem in issue #4437.

Closes #5729

changelog: Fix `let_and_return` bad suggestion
 2020-08-26 12:01:32 +00:00
bors
9ef44799bf Auto merge of #5949 - rail-rain:fix_fp_borrow_interior_mutable_const, r=oli-obk 
Fix fp in `borrow_interior_mutable_const`

fixes #5796

changelog: fix false positive in `borrow_interior_mutable_const` when referencing a field behind a pointer.
 2020-08-26 11:06:37 +00:00
bors
ad7a03cbaa Auto merge of #5951 - ThibsG:FixMacroCloneOnRefPtr2076, r=ebroto 
Fix incorrect suggestion when `clone_on_ref_ptr` is triggered in macros

In the lint `clone_on_ref_ptr`, if the `span` is in a macro, don't expand it for suggestion.

Fixes: #2076

changelog: none

r? @ebroto
 2020-08-25 21:48:19 +00:00
Scott McMurray
3b1e5d6ff7 Re-enable len_zero for ranges now that is_empty is stable on them 2020-08-25 12:17:03 -07:00
bors
f9015592f3 Auto merge of #5952 - 1c3t3a:1c3t3a-dev-5819, r=Manishearth 
Added a lint which corrects expressions like (a - b) < f32::EPSILON, according to #5819

Fixes #5819
changelog: none
 2020-08-25 16:54:48 +00:00
bors
5ef345a853 Auto merge of #5960 - flip1995:rustup, r=flip1995 
Rustup

r? @ghost

changelog: none
 2020-08-25 16:11:17 +00:00
bors
64b53f3877 Auto merge of #5920 - giraffate:fix_fp_for_redundant_closure_call, r=mikerite 
Fix FP for `redundant_closure_call`

Fix #5916

changelog: Fix FP for `redundant_closure_call` when called in function body
 2020-08-25 03:29:59 +00:00
Scott McMurray
48b4aeabf8 Unbreak the clippy test 2020-08-24 16:29:03 -07:00
Matthias Krüger
e9964f2e8a stable_sort_primitive: print the type that is being sorted in the lint message 2020-08-24 20:06:43 +02:00
Bastian
680c68153b Added a lint which corrects expressions like (a - b) < f32::EPSILON 2020-08-24 16:31:51 +02:00
ThibsG
3d820f71fe Fix incorrect suggestion when clone_on_ref_ptr is triggered in macros 2020-08-24 14:05:49 +02:00
rail-rain
ce8915c85c
typo 
Co-authored-by: Thibaud <ThibsG@users.noreply.github.com>
 2020-08-24 19:08:38 +12:00
Takayuki Nakata
9fe0ac36a5 Avoid period in lint message according to convention 2020-08-24 10:11:53 +09:00
Takayuki Nakata
b2c2266792 Fix FP for redundant_closure_call 
Visit the nested things like function body when checking closure call.
 2020-08-24 09:43:16 +09:00
rail
91b200c62b Fix fp in borrow_interior_mutable_const 
Fix false positive when referencing a field behind a pointer.
 2020-08-23 22:49:08 +12:00
Eduardo Broto
8776db9f6d Fix ICE in repeat_once lint 2020-08-23 12:05:34 +02:00
Michael Wright
e8d33d73dc Fix let_and_return bad suggestion 
Add a cast to the suggestion when the return expression has adjustments.
These adjustments are lost when the suggestion is applied.

This is similar to the problem in issue #4437.

Closes #5729
 2020-08-23 07:50:59 +02:00
bors
dd07860b83 Auto merge of #5941 - ThibsG:InlineInCopyPassByRef, r=yaahc 
Don't lint if it has always inline attribute

Don't trigger the lint `trivially_copy_pass_by_ref` if it has `#[inline(always)]` attribute.

Note: I am not particularly familiar with `inline` impacts, so I implemented this the way that if only `#[inline]` attribute is here (without `always`), the lint will still trigger. Also, it will still trigger if it has `#[inline(never)]`.
Just tell me if it sounds too much conservative.

Fixes: #5876

changelog: none
 2020-08-22 18:30:39 +00:00
Christian Stefanescu
53508aeb65 Run sh tests/ui/update-all-references.sh 2020-08-22 14:22:02 +02:00
Christian Stefanescu
5b07b9ed61 Widen understanding of prelude import 
Prelude imports are exempt from wildcard import warnings. Until now only
imports of the form

```
use ...::prelude::*;
```

were considered. This change makes it so that the segment `prelude` can
show up anywhere, for instance:

```
use ...::prelude::v1::*;
```

Fixes #5917
 2020-08-22 14:22:02 +02:00
ThibsG
191b6c798f Don't lint if it has always inline attribute 2020-08-22 12:58:35 +02:00
ThibsG
03bc7aed44 Add async test case for wrong_self_convention lint 2020-08-22 08:14:42 +02:00
bors
b57ef14290 Auto merge of #5926 - giraffate:improve_lint_message_in_to_string_in_display, r=yaahc 
Improve lint message in `to_string_in_display`

This is a follow-up of https://github.com/rust-lang/rust-clippy/pull/5831.

changelog: none
 2020-08-22 04:51:38 +00:00
Michael Wright
11efd75aeb Fix false negative in option_as_ref_deref 2020-08-21 07:23:04 +02:00
Tim Nielens
2ecc2ac864 unit-arg - improve suggestion 2020-08-21 00:42:11 +02:00
bors
4104611913 Auto merge of #5928 - mikerite:fix-5924, r=ebroto 
Fix false positive in `PRECEDENCE` lint

Extend the lint to handle chains of methods combined with unary negation.

Closes #5924

changelog: Fix false negative in `PRECEDENCE` lint
 2020-08-20 22:09:27 +00:00
Michael Wright
c236c0fb56 Fix false positive in PRECEDENCE lint 
Extend the lint to handle chains of methods combined with unary negation.

Closes #5924
 2020-08-20 06:34:48 +02:00
Takayuki Nakata
902b28275e Improve lint message in to_string_in_display 2020-08-19 22:31:34 +09:00
Eduardo Broto
6a12bae194 no from/to bits in const: add tests cases for f64 2020-08-18 22:19:30 +02:00
Eduardo Broto
df4d42fc2d transmute: avoid suggesting from/to bits in const 2020-08-18 21:55:56 +02:00
flip1995
c680602005
Merge remote-tracking branch 'upstream/master' into rustup 2020-08-18 19:50:23 +02:00
bors
9360ca6dc2 Auto merge of #5908 - giraffate:fix_fp_for_same_item_push, r=flip1995 
Fix FP for `same_item_push`

Fixes https://github.com/rust-lang/rust-clippy/issues/5902

changelog: Fix FP for `same_item_push` where the pushed variable is mutated.
 2020-08-17 16:49:03 +00:00
David Wood
f13d2bfd9b clippy: support QPath::LangItem 
This commit updates clippy with the introduction of `QPath::LangItem` so
that it still compiles.

Signed-off-by: David Wood <david@davidtw.co>
 2020-08-17 13:55:05 +01:00
Tomasz Miąsko
4f4abf4e06 Warn about explicit self-assignment 
Warn about assignments where left-hand side place expression is the same
as right-hand side value expression. For example, warn about assignment in:

```rust
pub struct Event {
    id: usize,
    x: i32,
    y: i32,
}

pub fn copy_position(a: &mut Event, b: &Event) {
    a.x = b.x;
    a.y = a.y;
}
```
 2020-08-16 23:31:36 +02:00
Dániel Buga
fc1e07e0c1 Rename lint to use plural form 2020-08-16 22:16:39 +02:00
Dániel Buga
b175642a85 Fix missed rename 2020-08-16 21:33:29 +02:00
Dániel Buga
75637c1eda Catch function calls in argument lists, add tests that tuples don't get linted 2020-08-16 20:27:54 +02:00
Dániel Buga
a7cc5d4068 Also simplify if the closure body is an index expression 2020-08-16 20:27:54 +02:00
Dániel Buga
a3ea65c2d9 Implement new lint 2020-08-16 20:27:22 +02:00
bors
3bd98895f1 Auto merge of #5725 - montrivo:should-impl-trait, r=flip1995 
should_impl_trait - ignore methods with lifetime params

Fixes: #5617

changelog: don't lint should_implement_trait when an `Iterator::next` case has explicit parameters
 2020-08-16 17:51:18 +00:00
bors
78857cc9d3 Auto merge of #5907 - wiomoc:feature/useless-vec-max-size, r=flip1995 
appreciative too_large_for_stack in useless `vec!`

Fixes: #5847
changelog: Add `too_large_for_stack ` configuration option for `USELESS_VEC`
 2020-08-16 17:30:12 +00:00
bors
dff7e74b27 Auto merge of #5903 - jrqc:needless_return, r=ebroto,flip1995 
Needless return

Fixes #5858
changelog: fix false positive [`needless_return`]
 2020-08-16 17:08:45 +00:00
bors
c8e05fc1c6 Auto merge of #5881 - wiomoc:feature/single-char-push_str, r=ebroto,flip1995 
Lint `push_str` with a single-character string literal

Fixes #5875
changelog:  `* [single_char_push_str]`
 2020-08-16 16:41:57 +00:00
bors
e522ca3c8d Auto merge of #5831 - chansuke:to_string_in_display, r=flip1995 
Don't use `to_string` in impl Display

fixes #3876

this PR is derived from [Toxyxer's implementation](https://github.com/rust-lang/rust-clippy/pull/5574).
changelog: add [`to_string_in_display`] lint
 2020-08-16 16:21:37 +00:00
Eduardo Broto
1a140dcc1c Improve needless_doctest_main by using the parser 2020-08-16 00:25:54 +02:00
jrqc
baa4cb1cdd early return removed 2020-08-16 00:24:27 +03:00
jrqc
a7d5c2f967 Modifications according to the code review 2020-08-16 00:24:27 +03:00
jrqc
65d10c7abf Borrow checker added 2020-08-16 00:24:27 +03:00
Christoph Walcher
ae56e988a2
Merge lint with single_char_pattern 2020-08-15 01:40:55 +02:00
Christoph Walcher
72d2c2eab4
Lint push_str with a single-character string literal 
Fixes #5875
 2020-08-15 01:40:55 +02:00
Takayuki Nakata
f98ffa271d Fix FP for same_item_push 
Don't emit a lint when `pushed_item` was declared as mutable variable.
 2020-08-14 22:54:12 +09:00
chansuke
8e549978e5 Don't use to_string in impl Display 2020-08-14 21:38:11 +09:00
Christoph Walcher
8514b8407a
appreciative too_large_for_stack in useless vec! 
Fixes: #5847
 2020-08-14 14:29:16 +02:00
bors
d5f5487252 Auto merge of #5899 - JarredAllen:rc-box-suggestion, r=yaahc 
Change Rc<Box<T>> recommendation to be Rc<T> instead of Box<T>

Fixes #5722

changelog: Suggest `Rc<Box<T>>` -> `Rc<T>` in [`redundant_allocation`] lint
 2020-08-13 13:31:55 +00:00
bors
fc4fd91914 Auto merge of #5900 - ThibsG:ParensUselessConversion4750, r=phansch 
Fix: keep parenthesis for suggestion in `useless_conversion` lint

Note: this lint was previously named `identity_conversion`.

fixes: #4750

changelog: fix parenthesis for `useless_conversion` lint suggestion
 2020-08-13 05:27:29 +00:00
ThibsG
5634c8da02 Fix: keep parenthesis for suggestion in useless_conversion lint 2020-08-12 21:44:02 +02:00
JarredAllen
480ccc3dbe Change Rc<Box<T>> recommendation to be Rc<T> instead of Box<T> 2020-08-12 10:35:08 -07:00
bors
439bae62a4 Auto merge of #5884 - Ryan1729:patch-1, r=flip1995 
Add the other overloadable operations to suspicious_arithmetic_impl

In #2268 I idly mused that the other user-overloadable operations could be added to this lint. Knowing that the lint was arguably incomplete was gnawing at the back of my mind, so I figured that I might as well make this PR, particularly given the change needed was so small.

changelog: Start warning on suspicious implementations of the `BitAnd`, `BitOr`, `BitXor`, `Rem`, `Shl`, and `Shr` traits.
 2020-08-12 17:00:48 +00:00
Ryan1729
7bd7a46331 run tests/ui/update-references.sh to update 'suspicious_arithmetic_impl.rs' 2020-08-12 10:52:20 -06:00
Ryan1729
f4eeff99b6 add tests for Rem, BitAnd, BitOr, BitXor, Shl, and Shr 2020-08-12 10:33:16 -06:00
flip1995
027780ca2c Merge commit '09bd400243ed6f7059fedc0c1623aae3792521d6' into clippyup 2020-08-11 17:50:45 +02:00
Matthias Krüger
be3e695b60 if_not_else: make lint adhere to lint message convention 2020-08-11 16:43:53 +02:00
Matthias Krüger
605e027fda if_let_some_result: make lint adhere to lint message convention 2020-08-11 16:40:45 +02:00
Matthias Krüger
89591a78b8 enum-variant-names: make lint adhere to lint message convention 2020-08-11 16:38:20 +02:00
Matthias Krüger
db390f5e6a enum-clike-unportable-variant: tweak message a bit (Clike -> C-like) 2020-08-11 16:35:09 +02:00
Matthias Krüger
2de290d5c5 duration-subsec: make lint adhere to lint message convention 2020-08-11 16:31:02 +02:00
Matthias Krüger
423615693b pub-enum-variant-names: make lint adhere to lint message convention 2020-08-11 16:28:05 +02:00
Matthias Krüger
1f17c3b02b multiple_inherent_impl: make lint adhere to lint message convention 2020-08-11 15:28:51 +02:00
Matthias Krüger
bdf4dc3abd implicit-saturating-sub: make lint adhere to lint message convention 2020-08-11 15:22:59 +02:00
Matthias Krüger
f171f89aed int_plus_one: make lint adhere to lint message convention 2020-08-11 15:15:26 +02:00
Matthias Krüger
6af297f80e iter-next-slice: make lint adhere to lint message convention 2020-08-11 15:15:26 +02:00
Matthias Krüger
04867e004e mutex-atomic: make lint adhere to lint message convention 2020-08-11 15:15:26 +02:00
Matthias Krüger
ac194cafc1 map_clone: make lint adhere to lint message convention 2020-08-11 15:15:26 +02:00
Matthias Krüger
c0a9d64818 stable-sort-primitive: make lint adhere to lint message convention 2020-08-11 15:15:26 +02:00
bors
3337f7956c Auto merge of #5892 - matthiaskrgr:redundant_mut, r=flip1995 
unnecessary-mut-passed: make lint message say if fn is a function or a method

changelog: refine "unnecessary-mut-passed" lint message
 2020-08-11 12:52:41 +00:00
bors
09bd400243 Auto merge of #5891 - flip1995:rustup, r=flip1995 
Rustup

r? @ghost

Sync back rust-lang/rust#75098

changelog: none
 2020-08-11 12:32:10 +00:00
flip1995
9311c11d7c
Fix sync fallout 2020-08-11 14:21:27 +02:00
Matthias Krüger
b8713e3854 unnecessary-mut-passed: make lint message say if fn is a function or a method. 2020-08-11 14:16:56 +02:00
Dylan DPC
9e73d33680 Rollup merge of #75098 - Ryan1729:clippy-pointer-cast-lint-experiment, r=oli-obk 
Clippy pointer cast lint experiment

This PR is an experiment about exposing more parts of `rustc_typeck` for use in `clippy`. In particular, the code that checks where a cast is valid or not was exposed, which necessitated exposing [`FnCtxt`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_typeck/check/struct.FnCtxt.html), and figuring out how to create an instance of that type inside `clippy`.

This was prompted by [this clippy issue](https://github.com/rust-lang/rust-clippy/issues/2064).

r? @oli-obk
 2020-08-11 01:56:30 +02:00
bors
cc5bfd473c Auto merge of #5888 - matthiaskrgr:lints, r=yaahc 
make a bunch of lints texts adhere to rustc dev guide

According to the rustc-dev guide: "The text should be matter of fact and avoid capitalization and periods, unless multiple sentences are needed"

changelog: make some lint output adhere to the rustc-dev guide
 2020-08-10 22:40:42 +00:00
Matthias Krüger
6d0b5e24df update test stderr 2020-08-11 00:27:55 +02:00
Matthias Krüger
dabf989195 neg-cmp-op-on-partial-ord: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
178da9b2ef neg-multiply: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
e519bb3c85 overflow-check-conditional: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
9178363574 path-buf-push-overwrite: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
81f77a411e range-zip-with-len: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
3e1e0c9bdb redundant-static-lifetimes: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
5d69ca5e11 also change "deprecated-attribute" message 2020-08-10 23:49:06 +02:00
Matthias Krüger
fe37ddbd11 suspicious-arithmetic-impl: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
7954c22a99 unknown: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
b36a6c9594 ref_in_deref: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
4418ff122f unneeded-field-pattern: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
2792260636 empty-liner-after-outer-attr: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
0db5cb1393 drop_bounds: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
590b91d8d4 double-parens: make lint adhere to lint message convention and do minor refactoring 2020-08-10 23:49:06 +02:00
Matthias Krüger
ba7a01a6a8 double-comparisons: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
6b0a6a70f8 default-trait-access: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
3d592b5154 cmp_null: make lint adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
8679dd375b unnecessary_unwrap, panicking_unwrap: make lints adhere to lint message convention 2020-08-10 23:49:06 +02:00
Matthias Krüger
9b7ab1d38b checked-conversions: make lint adhere to lint message convention 2020-08-10 23:48:57 +02:00
Eduardo Broto
5d66bd7bb3 Avoid or_fun_call for const_fn with no args 2020-08-10 23:38:58 +02:00
Matthias Krüger
40416c0fa8 naive_bytecount: make lint adhere to lint message convention 2020-08-10 20:55:23 +02:00
Matthias Krüger
fd379a889e builtin-type-shadow: make lint adhere to lint message convention 2020-08-10 20:55:23 +02:00
Matthias Krüger
0876f17d77 bool-comparison: make lint adhere to lint message convention 2020-08-10 20:55:23 +02:00
Matthias Krüger
e57aafe33f too-many-lines: make lint adhere to lint message convention 2020-08-10 20:55:23 +02:00
Philipp Krones
ee8db50e13
Rollup merge of #5871 - wiomoc:feature/methodcall-minmax, r=flip1995 
Lint .min(x).max(y) with x < y

Fixes  #5854

changelog: Also lint `ord.min(a).max(b)`, where `a < b` in [`min_max`] lint
 2020-08-10 14:56:29 +02:00
Philipp Krones
08ab29bed1
Rollup merge of #5870 - ebroto:5789_allow_unsafe_derive_deserialize, r=flip1995 
enable #[allow(clippy::unsafe_derive_deserialize)]

Before this change this lint could not be allowed as the code we are checking is automatically generated.

changelog: Enable using the `allow` attribute on top of an ADT linted by [`unsafe_derive_deserialize`].

Fixes: #5789
 2020-08-10 14:56:27 +02:00
Philipp Krones
8ee57eed79
Rollup merge of #5869 - wiomoc:feature/implicit-self, r=ebroto,flip1995 
New lint against `Self` as an arbitrary self type

Fixes #5861

changelog: * [`needless_arbitrary_self_type`] [#5869](https://github.com/rust-lang/rust-clippy/pull/5869)
 2020-08-10 14:56:26 +02:00
Philipp Krones
9da5b6d1d0
Rollup merge of #5825 - giraffate:same_item_push, r=Manishearth 
Add the new lint `same_item_push`

changelog: Add the new lint `same_item_push`

Fixed #4078. As I said in https://github.com/rust-lang/rust-clippy/issues/4078#issuecomment-658184195, I referrerd to https://github.com/rust-lang/rust-clippy/pull/4647.
 2020-08-10 14:56:25 +02:00
Tim Nielens
166c520e9a should_impl_trait - pr comments 2020-08-09 15:10:00 +02:00
Tim Nielens
2bc0ecd44b should_implement_trait - add test cases for every checked trait method 2020-08-09 15:10:00 +02:00
Tim Nielens
a77e881ec9 should_impl_trait - ignore methods with lifetime params 2020-08-09 15:10:00 +02:00
Ryan1729
873e5f5c19 add allow unused_unsafe and allow dead_code 2020-08-09 00:39:14 -06:00
Ryan1729
bc8d32d36b fix unary minus on usize and unused variable errors in .fixed file 2020-08-09 00:28:56 -06:00
Ryan1729
84db238fa1 add a test example of where transmutes_expressible_as_ptr_casts should not suggest anything 2020-08-09 00:15:56 -06:00
Ryan1729
a1ca12581a update stderr for transmutes_expressible_as_ptr_casts 2020-08-08 21:03:41 -06:00
bors
70c46de012 Auto merge of #5877 - ebroto:5872_loops_ice, r=Manishearth 
Fix ICE in `loops` module

changelog: Fix ICE related to `needless_collect` when a call to `iter()` was not present.

I went for restoring the old suggestion of `next().is_some()` over `get(0).is_some()` given that `iter()` is not necessarily present (could be e.g. `into_iter()` or `iter_mut()`)  and that the old suggestion could change semantics, e.g. a call to `filter()` could be present between `iter()` and the collect part.

Fixes #5872
 2020-08-08 18:44:48 +00:00
bors
3899d6001c Auto merge of #5878 - flip1995:rustup, r=flip1995 
Rustup

r? @ghost

changelog: none
 2020-08-08 17:28:34 +00:00
Eduardo Broto
888657e09a Fix ICE in loops module 2020-08-08 18:13:43 +02:00