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2573 Commits

Author SHA1 Message Date
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