Commit graph

7435 commits

Author SHA1 Message Date
Max Baumann
2953cba116 unit_like_struct_brackets -> empty_structs_with_brackets 2022-03-30 20:13:16 +02:00
Max Baumann
37d5a6264c changes after review 2022-03-30 20:12:58 +02:00
Max Baumann
33383a418d use span_suggestion_hidden 2022-03-30 20:12:58 +02:00
Max Baumann
7192297c28 additional checks for conditionally compiled code 2022-03-30 20:12:58 +02:00
Max Baumann
1a5ff38f92 fix godfood test 2022-03-30 20:12:58 +02:00
Max Baumann
9be3945be7 fix existing clippy tests 2022-03-30 20:12:58 +02:00
Max Baumann
528ada958b add unit_like_struct_brackets 2022-03-30 20:12:58 +02:00
SabrinaJewson
d6f05c6a89
Don't warn int-to-char transmutes in const contexts 2022-03-30 18:47:50 +01:00
Alex Macleod
10a6d872d4 Handle relative paths in module_files lints 2022-03-30 18:44:04 +01:00
bors
c0a5693abc Auto merge of #8602 - giraffate:fix_ice_for_iter_overeager_cloned, r=llogiq
Fix ICE for `iter_overeager_cloned`

Fix https://github.com/rust-lang/rust-clippy/issues/8527

changelog: Fix ICE for [`iter_overeager_cloned`]
2022-03-30 17:12:24 +00:00
bors
fe7254ff6f Auto merge of #8576 - smoelius:crate_in_macro_def, r=llogiq
Add `crate_in_macro_def` lint

This PR adds a lint to check for `crate` as opposed to `$crate` used in a macro definition.

I think this can close #4798. That issue focused on the case where the macro author "imports something into said macro."

But I think use of `crate` is likely to be a bug whether it appears in a `use` statement or not. There could be some use case I am failing to see, though. (cc: `@nilscript` `@flip1995)`

changelog: `crate_in_macro_def`
2022-03-30 16:57:24 +00:00
Samuel E. Moelius III
d6eb82c0a8 Move crate_in_macro_def to suspicious 2022-03-30 12:40:53 -04:00
Samuel Moelius
75dc406e84
Update clippy_lints/src/crate_in_macro_def.rs
Co-authored-by: llogiq <bogusandre@gmail.com>
2022-03-30 12:40:44 -04:00
Samuel Moelius
abc221e7f6
Update clippy_lints/src/crate_in_macro_def.rs
Co-authored-by: llogiq <bogusandre@gmail.com>
2022-03-30 12:40:25 -04:00
Samuel Moelius
9b304533ab
Update clippy_lints/src/crate_in_macro_def.rs
Co-authored-by: llogiq <bogusandre@gmail.com>
2022-03-30 12:40:16 -04:00
bors
0031f69999 Auto merge of #8592 - c410-f3r:stuff, r=flip1995
Do not fire `panic` in a constant environment

Let rustc handle panics in constant environments.

Since https://github.com/rust-lang/rust-clippy/issues/8348 I thought that such modification would require a lot of work but thanks to https://github.com/rust-lang/rust-clippy/pull/8588 I now know that it is not the case.

changelog: [`panic`]: No longer lint in constant context. `rustc` already handles this.
2022-03-30 16:04:14 +00:00
bors
d9819c3b8d Auto merge of #8584 - Alexendoo:map-unit-fn-context, r=Manishearth
Provide suggestion context in map_unit_fn

Fixes #8569

changelog: Fix incorrect suggestion for `option_map_unit_fn` , `result_map_unit_fn`
2022-03-30 15:25:37 +00:00
lcnr
148b593954 get clippy to compile again 2022-03-30 11:23:58 +02:00
Camille GILLOT
e01897edcb Remember mutability in DefKind::Static.
This allows to compute the `BodyOwnerKind` from `DefKind` only, and
removes a direct dependency of some MIR queries onto HIR.

As a side effect, it also simplifies metadata, since we don't need 4
flavours of `EntryKind::*Static` any more.
2022-03-29 18:50:52 +02:00
Takayuki Nakata
c22b7b8814 Fix ICE for iter_overeager_cloned 2022-03-29 21:51:37 +09:00
J-ZhengLi
448a26d696 improve parent expr check 2022-03-29 15:23:19 +08:00
Samuel E. Moelius III
cb307bbfcd Address review comments 2022-03-28 04:48:12 -04:00
Jaic1
ec851b870b First submit 2022-03-28 12:09:01 +08:00
bors
6206086dd5 Auto merge of #8487 - dswij:8478, r=giraffate
[`map_identity`] checks for needless `map_err`

Closes #8478

changelog: [`map_identity`] checks for needless `map_err`
2022-03-28 00:25:45 +00:00
bors
59c0f29916 Auto merge of #8519 - tysg:redundant-modulo, r=giraffate
Check if lhs < rhs in modulos in `identity_op`

Fixes #8508

changelog: [`identity_op`] now checks for modulos, e.g. `1 % 3`
2022-03-28 00:11:32 +00:00
Tianyi Song
52b563b283 Emit lint when rhs is negative 2022-03-27 21:49:38 +08:00
Caio
c687f6575f Do not fire panic in a constant environment 2022-03-26 15:39:21 -03:00
Peter Jaszkowiak
21eae8ceb6 fix indexing_slicing with const
- should not fire if indexing with a constant block
- should not fire if indexing within a constant context
(const statement or const block)
2022-03-25 23:05:38 -06:00
Alex Macleod
610db04222 Provide suggestion context in map_unit_fn 2022-03-25 20:47:54 +00:00
Grisha Vartanyan
854c3de1ff Update clippy helper function types 2022-03-25 15:05:27 +01:00
flip1995
1fa3d66e62 Merge commit 'd0cf3481a84e3aa68c2f185c460e282af36ebc42' into clippyup 2022-03-24 14:50:04 +01:00
flip1995
1147b2c481
Merge remote-tracking branch 'upstream/master' into rustup 2022-03-24 14:22:35 +01:00
Samuel Moelius
86872059ed
Typo 2022-03-24 08:57:08 -04:00
Yoav Lavi
b60a7fb7b6
unnecessary_join lint 2022-03-24 13:18:18 +01:00
Samuel E. Moelius III
65a26692fd Add crate_in_macro_def lint 2022-03-24 05:08:10 -04:00
bors
f07ee8a998 Auto merge of #8232 - Jarcho:match_same_arm_860, r=xFrednet
`match_same_arms` fix

fixes #860
fixes #1140

changelog: Don't lint `match_same_arms` when an interposing arm's pattern would overlap
2022-03-21 20:42:51 +00:00
bors
4a07662d94 Auto merge of #8561 - FoseFx:use_unwrap_or, r=xFrednet
add `or_then_unwrap`

Closes #8557

changelog: New lint [`or_then_unwrap`]
2022-03-21 20:08:29 +00:00
J-ZhengLi
5b6295d663 allowing [map_flatten] to split long suggestions
add new function `span_lint_and_sugg_` for edges in `clippy_utils::diagnostics`
2022-03-21 14:11:22 +08:00
Max Baumann
765cce11b1
refactor: remove need for MethodCall matching 2022-03-21 00:04:37 +01:00
Max Baumann
4580c8a9b7
refactor: use is_lang_ctor() 2022-03-20 23:54:04 +01:00
Max Baumann
0f83753934
feat: change error message 2022-03-20 23:43:17 +01:00
Max Baumann
895de1f13e
feat: make fixable 2022-03-18 23:18:36 +01:00
Max Baumann
f00e844a1f
feat: use span_lint_and_sugg 2022-03-18 22:44:56 +01:00
Max Baumann
34ad33c57a
refactor: move into methods module 2022-03-18 21:11:54 +01:00
bors
a31dcb77be Auto merge of #8562 - Jarcho:enum_tuple_variant_as_int, r=Manishearth
Add lint `cast_enum_constructor`

fixes: #1116

changelog: Add lint `cast_enum_constructor`
2022-03-18 15:54:45 +00:00
bors
9fd3c2d788 Auto merge of #8543 - dswij:8393, r=giraffate
`unnecessary_lazy_eval` show suggestions on multiline lint

Closes #8393

changelog: [`unnecessary_lazy_eval`] now shows suggestions for long-line lints
2022-03-18 00:42:18 +00:00
Max Baumann
3c4192f3e9
fix: ran update_lints 2022-03-18 01:12:39 +01:00
Max Baumann
05e05eaed7
refactor: rename lint to or_then_unwrap 2022-03-18 01:04:33 +01:00
Jason Newcomb
39329d1d40 Add lint cast_enum_constructor 2022-03-17 19:57:35 -04:00
Max Baumann
44c62c9aa2
feat: add tests and fix existing ones 2022-03-18 00:51:26 +01:00
Max Baumann
17ff85081d
feat: rename variable in example 2022-03-18 00:34:24 +01:00
Max Baumann
4493fc7d27
refactor: use pattern matching for MethodCall arguments
Co-authored-by: xFrednet <xFrednet@gmail.com>
2022-03-18 00:23:55 +01:00
Max Baumann
c22ff6cd6e
fix: fix clippy_lints 2022-03-17 19:52:07 +01:00
Max Baumann
747bb245e7
fix: fix broken dogfood tests 2022-03-17 19:29:59 +01:00
Max Baumann
3f00f074de
fix: fix tests 2022-03-17 19:13:44 +01:00
Max Baumann
f49a2c3457
feat: add use_unwrap_or 2022-03-17 18:57:28 +01:00
bors
8d5c0eadde Auto merge of #8552 - Jarcho:ptr_arg_8495, r=xFrednet
Don't lint `ptr_arg` on `&mut Cow<_>`

fixes: #8495

changelog: Don't lint `ptr_arg` on `&mut Cow<_>`
2022-03-17 17:05:26 +00:00
J-ZhengLi
4b128624ed fix #8551, add test cases, and some code improvement 2022-03-17 23:06:31 +08:00
dswij
bd888d4354 Add some comments 2022-03-17 14:38:39 +08:00
Jason Newcomb
773d20341a Fix mixed enum variant kinds + code cleanup 2022-03-17 01:09:25 -04:00
Jason Newcomb
08a7157a37 Improve message for match_single_arms 2022-03-16 13:58:09 -04:00
Jason Newcomb
4f8f4b4c82 Handle slice patterns in match_same_arms 2022-03-16 13:53:52 -04:00
Jason Newcomb
5508f461b8 Use DroplessArena when allocating ResolvedPats
Fix tuple handling in `match_same_arms`
2022-03-16 13:49:19 -04:00
Jason Newcomb
b37317b028 Check if there are any overlapping patterns between equal arm bodies in match_same_arm 2022-03-16 13:18:29 -04:00
Jason Newcomb
8e5208cbff Don't lint transmute_undefined_repr when changing the type of generic params 2022-03-16 12:56:23 -04:00
Jason Newcomb
851e715e5a Don't lint ptr_arg on &mut Cow<_> 2022-03-16 12:00:27 -04:00
codehorseman
4beda1be70 resolve the conflict in compiler/rustc_session/src/parse.rs
Signed-off-by: codehorseman <cricis@yeah.net>
2022-03-16 20:12:30 +08:00
bors
d23ddab82d Auto merge of #8544 - nellorocca:dev/5757, r=flip1995
Moved ``[try_err]`` to restriction

Fixes #5757

changelog: Moved try_err lint to rescrition for #5757
2022-03-16 09:55:39 +00:00
bors
2b0e730bf3 Auto merge of #8547 - Jarcho:transmute_8501, r=flip1995
More `transmute_undefined_repr` fixes

fixes: #8498
fixes: #8501
fixes: #8503

changelog: Allow `transumte_undefined_repr` between fat pointers and `(usize, usize)`
changelog: Allow `transumte_undefined_repr` when one side is a union
changelog: Fix `transumte_undefined_repr` on tuples with one non-zero-sized type.
2022-03-16 09:39:22 +00:00
J-ZhengLi
2909b33a24 quick fix of issue#8542 for lint [needless_match]
remove `ref`/`ref mut` check
2022-03-16 16:26:56 +08:00
Jason Newcomb
47c9ed697b Fix checking transmutes with adjusted types 2022-03-15 23:11:11 -04:00
Jason Newcomb
911e10562a Don't lint transmute_undefined_repr on unions. 2022-03-15 22:38:15 -04:00
Jason Newcomb
7fd52b5e3c Small simplification to transmute_undefined_repr 2022-03-15 22:33:26 -04:00
Jason Newcomb
442d4ce1c3 Don't lint fat pointer to (usize, usize) conversion in transmute_undefined_repr 2022-03-15 22:31:07 -04:00
Jason Newcomb
e71ac41d44 Fix transmute_undefined_repr for single element tuples 2022-03-15 21:51:07 -04:00
Kisaragi
9f95e7622d
fix typo in code-block kind specifier 2022-03-16 10:19:19 +09:00
Kisaragi
fc5cbba1a4
fix typo in code-block kind specifier 2022-03-16 08:50:30 +09:00
Jason Newcomb
30b333645d Don't lint undocumented_unsafe_blocks on bad proc-macro spans. 2022-03-15 16:52:28 -04:00
Paolo Gentili
a39d649733 Lint list updated 2022-03-15 19:38:40 +01:00
Jason Newcomb
65f96e2b53 Rework undocumented_unsafe_blocks 2022-03-15 14:18:05 -04:00
Paolo Gentili
5c1843dbce Moved lint to restriction 2022-03-15 18:45:01 +01:00
dswij
6a3dbe4798 unnecessary_lazy_eval show suggestions on multiline lint 2022-03-15 23:59:26 +08:00
flip1995
b981748036
Move iter_with_drain to nursery 2022-03-15 09:46:49 +01:00
bors
71ecbc42f9 Auto merge of #8509 - smoelius:fix-8507, r=giraffate
Fix `unncessary_to_owned` false positive

Fix #8507

changelog: none
2022-03-15 01:08:47 +00:00
Dylan DPC
5ed40229ac fix typos 2022-03-15 02:00:08 +01:00
xFrednet
2ee5372389
Allow single_component_path_imports for all macros 2022-03-14 22:45:00 +01:00
flip1995
d1b087fdee Merge commit 'dc5423ad448877e33cca28db2f1445c9c4473c75' into clippyup 2022-03-14 12:02:53 +01:00
flip1995
d5ab347d5c
Merge remote-tracking branch 'upstream/master' into rustup 2022-03-14 11:29:18 +01:00
bors
e2e492c10e Auto merge of #8422 - buttercrab:only_used_in_recursion, r=llogiq
new lint: `only_used_in_recursion`

changed:
- added `only_used_in_recursion`.
- fixed code that variables are only used in recursion.
- this would not lint when `unused_variable`

This fixes: #8390

-----

changelog: add lint [`only_used_in_recursion`]
2022-03-13 16:11:25 +00:00
Jaeyong Sung
800f66de2b
add clearing return vars 2022-03-14 00:13:57 +09:00
bors
75b616e92f Auto merge of #8471 - J-ZhengLi:master-issue7040, r=llogiq
new lint that detects useless match expression

fixes #7040

changelog: Add new  lint [`needless_match`] under complexity lint group
2022-03-13 14:49:56 +00:00
Tianyi Song
a944ccb677 Check if lhs < rhs in modulos and emit 2022-03-11 16:02:49 +08:00
Nicholas Nethercote
e110231260 Improve AdtDef interning.
This commit makes `AdtDef` use `Interned`. Much the commit is tedious
changes to introduce getter functions. The interesting changes are in
`compiler/rustc_middle/src/ty/adt.rs`.
2022-03-11 13:31:24 +11:00
Jaeyong Sung
1ad7e7097a
remove parameters that are only used in recursion 2022-03-10 16:06:35 +09:00
Jaeyong Sung
52d35dca6a
fix build error 2022-03-10 15:53:53 +09:00
J-ZhengLi
086b045822 add checking for x -> x and ref x -> x and related test cases. 2022-03-10 14:46:58 +08:00
Jaeyong Sung
69161c6327
fix to lint Self::function 2022-03-10 15:46:40 +09:00
J-ZhengLi
ec9116412a rename lint to needless_match
and change its lint group to "complexity"
2022-03-10 09:44:25 +08:00
lcnr
a4d6c61bdc add #[rustc_pass_by_value] to more types 2022-03-08 15:39:52 +01:00
J-ZhengLi
750204e3e3 fix a bug that caused internal test fail 2022-03-08 18:15:11 +08:00
J-ZhengLi
6bfc1120cf add nop if-let expression check.
re-design test cases as some of them are not worth the effort to check.
2022-03-08 17:37:53 +08:00
bors
d3bc1297db Auto merge of #94706 - matthiaskrgr:rollup-l5erynr, r=matthiaskrgr
Rollup of 4 pull requests

Successful merges:

 - #93350 (libunwind: readd link attrs to _Unwind_Backtrace)
 - #93827 (Stabilize const_fn_fn_ptr_basics, const_fn_trait_bound, and const_impl_trait)
 - #94696 (Remove whitespaces and use CSS to align line numbers to the right instead)
 - #94700 (rustdoc: Update minifier version)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2022-03-07 18:06:31 +00:00
Eric Holk
43ce0a94af Update and fix clippy tests 2022-03-07 08:47:18 -08:00
J-ZhengLi
db3fcf8df7 add basic code to check nop match blocks
modify `manual_map_option` uitest because one test case has confliction.
2022-03-07 18:12:35 +08:00
Nicholas Nethercote
b36924b4ac Clarify Layout interning.
`Layout` is another type that is sometimes interned, sometimes not, and
we always use references to refer to it so we can't take any advantage
of the uniqueness properties for hashing or equality checks.

This commit renames `Layout` as `LayoutS`, and then introduces a new
`Layout` that is a newtype around an `Interned<LayoutS>`. It also
interns more layouts than before. Previously layouts within layouts
(via the `variants` field) were never interned, but now they are. Hence
the lifetime on the new `Layout` type.

Unlike other interned types, these ones are in `rustc_target` instead of
`rustc_middle`. This reflects the existing structure of the code, which
does layout-specific stuff in `rustc_target` while `TyAndLayout` is
generic over the `Ty`, allowing the type-specific stuff to occur in
`rustc_middle`.

The commit also adds a `HashStable` impl for `Interned`, which was
needed. It hashes the contents, unlike the `Hash` impl which hashes the
pointer.
2022-03-07 13:41:47 +11:00
bors
0c483f69db Auto merge of #8445 - asquared31415:slice_ptr_cast, r=llogiq
Llint for casting between raw slice pointers with different element sizes

This lint disallows using `as` to convert from a raw pointer to a slice (e.g. `*const [i32]`, `*mut [Foo]`) to any other raw pointer to a slice if the element types have different sizes.  When a raw slice pointer is cast, the data pointer and count metadata are preserved.  This means that when the size of the inner slice's element type changes, the total number of bytes pointed to by the count changes.  For example a `*const [i32]` with length 4 (four `i32` elements) is cast `as *const [u8]` the resulting pointer points to four `u8` elements at the same address, losing most of the data.  When the size *increases* the resulting pointer will point to *more* data, and accessing that data will be UB.

On its own, *producing* the pointer isn't actually a problem, but because any use of the pointer as a slice will either produce surprising behavior or cause UB I believe this is a correctness lint.  If the pointer is not intended to be used as a slice, the user should instead use any of a number of methods to produce just a data pointer including an `as` cast to a thin pointer (e.g. `p as *const i32`) or if the pointer is being created from a slice, the `as_ptr` method on slices.  Detecting the intended use of the pointer is outside the scope of this lint, but I believe this lint will also lead users to realize that a slice pointer is only for slices.

There is an exception to this lint when either of the slice element types are zero sized (e.g `*mut [()]`).  The total number of bytes pointed to by the slice with a zero sized element is zero.  In that case preserving the length metadata is likely intended as a workaround to get the length metadata of a slice pointer though a zero sized slice.

The lint does not forbid casting pointers to slices with the *same* element size as the cast was likely intended to reinterpret the data in the slice as some equivalently sized data and the resulting pointer will behave as intended.

---

changelog: Added ``[`cast_slice_different_sizes`]``, a lint that disallows using `as`-casts to convert between raw pointers to slices when the elements have different sizes.
2022-03-06 07:46:56 +00:00
Samuel E. Moelius III
1a95590faf Fix #8507 2022-03-05 21:18:44 -05:00
Samuel E. Moelius III
ce841fe73b Format with rustfmt_if_chain 2022-03-05 18:35:58 -05:00
Jaeyong Sung
c4a3ccde78
fix lint errors 2022-03-05 21:49:36 +09:00
Jaeyong Sung
2b0f9aba64
don't lint when implementing trait 2022-03-05 21:39:00 +09:00
bors
48d54942f5 Auto merge of #8504 - xFrednet:8502-allow-lint-without-reason, r=flip1995
Add lint to detect `allow` attributes without reason

I was considering putting this lint into the pedantic group. However, that would result in countless warnings for existing projects. Having it in restriction also seems good to me 🙃 (And now I need sleep 💤 )

---

changelog: New lint [`allow_lint_without_reason`] (Requires the `lint_reasons` feature)

Closes: rust-lang/rust-clippy#8502
2022-03-04 19:23:39 +00:00
asquared31415
f932c304bb lint for casting raw pointers to slices with different element sizes 2022-03-04 13:23:06 -05:00
pierwill
c8d6a55f6a Update itertools
Update to 0.10.1
2022-03-04 11:54:28 -06:00
xFrednet
ab6ffb6371
Add lint to detect allow attributes without reason 2022-03-04 17:45:43 +01:00
bors
53189ad190 Auto merge of #8500 - rust-lang:testless-dbg-macro, r=Manishearth
Omit dbg_macro in test code

This fixes #8481.

---

changelog: none
2022-03-03 18:32:07 +00:00
Andre Bogus
63907234d7 Omit dbg_macro in test code 2022-03-03 19:28:05 +01:00
bors
c5faf992d2 Auto merge of #8414 - MiSawa:fix/optimize-redundant-clone, r=oli-obk
Optimize `redundant_clone`

Fixes #8412

changelog: none
2022-03-03 14:47:49 +00:00
bors
d56f457715 Auto merge of #8483 - ldm0:iter_with_drain_simple, r=flip1995,giraffate
Use `.into_iter()` rather than `.drain(..)`

Replacing `.drain(..)` with `.into_iter()` makes my project's binary size smaller.

Fixes #1908

Applicability of this suggestion is `MaybeIncorrect` rather than `MachineApplicable` due to the complexity of "checking otherwise usage" X-|

changelog: Add new lint [`iter_with_drain`]
2022-03-03 13:36:49 +00:00
bors
ef4af1d2d8 Auto merge of #8497 - Manishearth:transmute-undefined-repr-note, r=flip1995
comment about transmute_undefined_repr in nursery

See discussion in https://github.com/rust-lang/rust-clippy/pull/8432

changelog: none
2022-03-03 09:05:21 +00:00
Manish Goregaokar
78547b1716
comment about transmute_undefined_repr in nursery 2022-03-03 09:03:27 +00:00
Liu Dingming
6cc2eeaa56 Suggest into_iter() over drain(..)
Add doc

Add description

iter_with_drain dogfood

Disable emiting on struct field.

Fix clippy

Add eq_path for SpanlessEq

Fix tests

Better error message

Fix doc test

Fix version

Apply suggestions
2022-03-03 13:10:19 +08:00
flip1995
7f44a753ce Move transmute_undefined_repr back to nursery
There's still open discussion if this lint is ready to be enabled by
default. We want to give us more time to figure this out and prevent
this lint from getting to stable as an enabled-by-default lint.
2022-03-02 13:07:00 -08:00
bors
6e211eac7c Auto merge of #8489 - smoelius:unnecessary-find-map, r=llogiq
Add `unnecessary_find_map` lint

This PR adds an `unnecessary_find_map` lint. It is essentially just a minor enhancement of `unnecessary_filter_map`.

Closes #8467

changelog: New lint `unnecessary_find_map`
2022-03-02 19:50:27 +00:00
bors
2e40dc81b7 Auto merge of #8456 - ebobrow:use_self_pat, r=llogiq
check `use_self` in `pat`

fixes #6955

changelog: check `use_self` in `pat`
2022-03-02 19:31:22 +00:00
bors
27869d6d46 Auto merge of #8174 - rust-lang:missing-spin-loop, r=flip1995
new lint: `missing-spin-loop`

This fixes #7809. I went with the shorter name because the function is called `std::hint::spin_loop`. It doesn't yet detect `while let` loops. I left that for a follow-up PR.

---

changelog: new lint: [`missing_spin_loop`]
2022-03-02 19:12:32 +00:00
Andre Bogus
9f1080cc6e new lint: missing-spin-loop 2022-03-02 19:31:06 +01:00
bors
14f3d05939 Auto merge of #8432 - dtolnay-contrib:transmuteundefinedrepr2, r=Manishearth
Transmute_undefined_repr to nursery again

This PR reinstates #8418, which was reverted in #8425 (incorrectly I think).

I don't want to start a revert war over this but I feel very strongly that this lint is not in a state that would be a net benefit to users of clippy. In its current form, making this an enabled-by-default `correctness` lint with authoritative-sounding proclamations of undefined behavior does more harm than the benefit of the true positive cases.

I can file a bunch more examples of false positives but I don't want to give the author of this lint the impression that it is ready to graduate from `nursery` as soon as I've exhausted the amount of time I am willing to spend revising this lint.

Instead I would recommend that the author of the lint try running it on some reputable codebases containing transmutes. Everywhere that the lint triggers please consider critically whether it should be triggering. For cases that you think are true positives, please raise a few of them with the crate authors (in a PR or issue) to better understand their perspective if they think the transmute is correct.

---

*Please write a short comment explaining your change (or "none" for internal only changes)*

changelog: Re-remove [`transmute_undefined_repr`] from default set of enabled lints
2022-03-02 17:05:06 +00:00
Samuel E. Moelius III
2a588d810f Add unnecessary_find_map lint 2022-03-01 19:24:55 -05:00
flip1995
bca4ee7971
Implement internal lint for MSRV lints
This internal lint checks if the `extract_msrv_attrs!` macro is used if
a lint has a MSRV. If not, it suggests to add this attribute to the lint
pass implementation.
2022-03-01 09:40:07 +00:00
dswij
35b1453895 map_identity checks for unneeded .map_err 2022-03-01 12:47:55 +08:00
Samuel E. Moelius III
d123ffc6c7 Check clone_or_copy_needed in unnecessary_filter_map::check 2022-02-28 05:24:00 -05:00
Elliot Bobrow
914ae1e849 check use_self in pat 2022-02-26 09:23:29 -08:00
bors
d1ca1c1d0c Auto merge of #8462 - ken-matsui:use-precise-namespace-for-reverse, r=llogiq
Use the precise namespace for `Reverse`

Closes: https://github.com/rust-lang/rust-clippy/issues/8461

changelog: [`unnecessary_sort_by`](https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by): Use the precise namespace for `Reverse`
2022-02-26 14:49:39 +00:00
flip1995
35020280a0 Merge commit 'e329249b6a3a98830d860c74c8234a8dd9407436' into clippyup 2022-02-26 14:26:21 +01:00
bors
e329249b6a Auto merge of #8464 - Jarcho:ptr_arg_8463, r=camsteffen
Fix `ptr_arg`

fixes: #8463

changelog: Fix `ptr_arg` when multiple arguments are being checked in one function
2022-02-26 03:00:53 +00:00
bors
2c8d5a2500 Auto merge of #8453 - tamaroning:fix_large_enum_variant, r=camsteffen
fix false positives of large_enum_variant

fixes: #8321
The size of enums containing generic type was calculated to be 0.
I changed [large_enum_variant] so that such enums are not linted.

changelog: none
2022-02-26 02:42:43 +00:00
Alex Macleod
52f3d61a2a Add print_in_format_impl lint 2022-02-25 21:10:06 +00:00
Alex Macleod
bcbb07f4dc Rename RecursiveFormatImpl to FormatImpl 2022-02-25 18:22:55 +00:00
bors
4417f78e91 Auto merge of #8474 - Alexendoo:paths, r=Manishearth
Replace some more paths with diagnostic items

cc #5393

Replaces the macro & mem paths, and catches a couple others that were unused

changelog: none
2022-02-25 16:07:59 +00:00
Alex Macleod
2955db493e Replace some more paths with diagnostic items 2022-02-25 15:38:06 +00:00
Florian Nagel
862211d540 Disable `[new-without-default]` for new() methods that are marked with '#[doc(hidden)]'
Fixes issue #8152
2022-02-25 16:34:37 +01:00
Mark Rousskov
307966fbb2 Switch bootstrap cfgs 2022-02-25 08:00:52 -05:00
J-ZhengLi
30fb8229e1 add tests, add base bone for the new lint 2022-02-25 18:08:52 +08:00
bors
87355df6d4 Auto merge of #93368 - eddyb:diagbld-guarantee, r=estebank
rustc_errors: let `DiagnosticBuilder::emit` return a "guarantee of emission".

That is, `DiagnosticBuilder` is now generic over the return type of `.emit()`, so we'll now have:
* `DiagnosticBuilder<ErrorReported>` for error (incl. fatal/bug) diagnostics
  * can only be created via a `const L: Level`-generic constructor, that limits allowed variants via a `where` clause, so not even `rustc_errors` can accidentally bypass this limitation
  * asserts `diagnostic.is_error()` on emission, just in case the construction restriction was bypassed (e.g. by replacing the whole `Diagnostic` inside `DiagnosticBuilder`)
  * `.emit()` returns `ErrorReported`, as a "proof" token that `.emit()` was called
    (though note that this isn't a real guarantee until after completing the work on
     #69426)
* `DiagnosticBuilder<()>` for everything else (warnings, notes, etc.)
  * can also be obtained from other `DiagnosticBuilder`s by calling `.forget_guarantee()`

This PR is a companion to other ongoing work, namely:
* #69426
  and it's ongoing implementation:
  #93222
  the API changes in this PR are needed to get statically-checked "only errors produce `ErrorReported` from `.emit()`", but doesn't itself provide any really strong guarantees without those other `ErrorReported` changes
* #93244
  would make the choices of API changes (esp. naming) in this PR fit better overall

In order to be able to let `.emit()` return anything trustable, several changes had to be made:
* `Diagnostic`'s `level` field is now private to `rustc_errors`, to disallow arbitrary "downgrade"s from "some kind of error" to "warning" (or anything else that doesn't cause compilation to fail)
  * it's still possible to replace the whole `Diagnostic` inside the `DiagnosticBuilder`, sadly, that's harder to fix, but it's unlikely enough that we can paper over it with asserts on `.emit()`
* `.cancel()` now consumes `DiagnosticBuilder`, preventing `.emit()` calls on a cancelled diagnostic
  * it's also now done internally, through `DiagnosticBuilder`-private state, instead of having a `Level::Cancelled` variant that can be read (or worse, written) by the user
  * this removes a hazard of calling `.cancel()` on an error then continuing to attach details to it, and even expect to be able to `.emit()` it
  * warnings were switched to *only* `can_emit_warnings` on emission (instead of pre-cancelling early)
  * `struct_dummy` was removed (as it relied on a pre-`Cancelled` `Diagnostic`)
* since `.emit()` doesn't consume the `DiagnosticBuilder` <sub>(I tried and gave up, it's much more work than this PR)</sub>,
  we have to make `.emit()` idempotent wrt the guarantees it returns
  * thankfully, `err.emit(); err.emit();` can return `ErrorReported` both times, as the second `.emit()` call has no side-effects *only* because the first one did do the appropriate emission
* `&mut Diagnostic` is now used in a lot of function signatures, which used to take `&mut DiagnosticBuilder` (in the interest of not having to make those functions generic)
  * the APIs were already mostly identical, allowing for low-effort porting to this new setup
  * only some of the suggestion methods needed some rework, to have the extra `DiagnosticBuilder` functionality on the `Diagnostic` methods themselves (that change is also present in #93259)
  * `.emit()`/`.cancel()` aren't available, but IMO calling them from an "error decorator/annotator" function isn't a good practice, and can lead to strange behavior (from the caller's perspective)
  * `.downgrade_to_delayed_bug()` was added, letting you convert any `.is_error()` diagnostic into a `delay_span_bug` one (which works because in both cases the guarantees available are the same)

This PR should ideally be reviewed commit-by-commit, since there is a lot of fallout in each.

r? `@estebank` cc `@Manishearth` `@nikomatsakis` `@mark-i-m`
2022-02-25 00:46:04 +00:00
Dylan DPC
996fa506a4 Rollup merge of #93714 - compiler-errors:can-type-impl-copy-error-span, r=jackh726
better ObligationCause for normalization errors in `can_type_implement_copy`

Some logic is needed so we can point to the field when given totally nonsense types like `struct Foo(<u32 as Iterator>::Item);`

Fixes #93687
2022-02-24 21:42:12 +01:00
Vadim Petrochenkov
83d32701f2 resolve: Fix incorrect results of opt_def_kind query for some built-in macros
Previously it always returned `MacroKind::Bang` while some of those macros are actually attributes and derives
2022-02-24 22:54:36 +03:00
flip1995
5ece8d2bc4
Bump Clippy Version -> 0.1.61 2022-02-24 19:32:47 +01:00
flip1995
fd495a0654
Merge remote-tracking branch 'upstream/master' into rustup 2022-02-24 19:32:17 +01:00
Michael Goulet
676943a9f9 better ObligationCause for normalization errors in can_type_implement_copy 2022-02-24 08:30:38 -08:00
tamaron
31b49b0be8 fix typo 2022-02-24 00:25:07 +09:00
tamaron
db62821c03 fix 2022-02-24 00:16:24 +09:00
Eduard-Mihai Burtescu
881b8cb704 rustc_errors: take self by value in DiagnosticBuilder::cancel. 2022-02-23 06:08:06 +00:00
Jason Newcomb
382b3f0601 Fix counting the number of unchangeable arguments in ptr_arg 2022-02-23 01:04:49 -05:00
Eduard-Mihai Burtescu
88483bd4b7 Replace &mut DiagnosticBuilder, in signatures, with &mut Diagnostic. 2022-02-23 05:38:19 +00:00
mi_sawa
6d2a04250c Don't assume DAG 2022-02-23 13:38:48 +09:00
Ken Matsui
7412e6976e
Use the precise namespace for Reverse 2022-02-23 06:06:09 +09:00
bors
9e605ef80f Auto merge of #8443 - Jarcho:match_cfg_arm, r=flip1995
Don't lint `match` expressions with `cfg`ed arms

Somehow there are no open issues related to this for any of the affected lints. At least none that I could fine from a quick search.

changelog: Don't lint `match` expressions with `cfg`ed arms in many cases
2022-02-21 08:46:42 +00:00
lcnr
e390e6c469 update clippy 2022-02-21 07:09:11 +01:00
tamaron
e3b5cac3c8 fix 2022-02-21 13:25:53 +09:00
David Tolnay
fd9dd04972
Transmute_undefined_repr to nursery again 2022-02-18 15:39:29 -08:00
Jason Newcomb
78345b4d09 Clarify cfg detection process in matches.rs 2022-02-18 15:41:46 -05:00
Jason Newcomb
d28d19d74c Fix transmute_undefined_repr when converting between a fat pointer and a type containing a fat pointer 2022-02-18 15:02:28 -05:00
Jason Newcomb
7c07022c98 Allow transmuting fat pointers to some types in transmute_undefined_repr 2022-02-18 15:02:28 -05:00
Jason Newcomb
447a24588a Allow various type erasure patterns in transmute_undefined_repr 2022-02-18 15:02:25 -05:00
Jason Newcomb
01732b6019 Add some comments to transmute_undefined_repr 2022-02-18 15:01:58 -05:00
Jason Newcomb
c02dff7167 Fix transmute_undefined_repr when converting between a pointer and a type containing a pointer 2022-02-18 15:01:58 -05:00
Jason Newcomb
88ecdd0804 Extract some util functions 2022-02-18 09:45:11 -05:00
Jason Newcomb
90bb7a3476 New lint cast_enum_truncation 2022-02-18 09:16:17 -05:00
Jason Newcomb
8a466454ab Lint enum-to-int casts with cast_possible_truncation 2022-02-18 09:11:15 -05:00
bors
02f3c17593 Auto merge of #8419 - flip1995:await_parking_alot, r=llogiq
Fix `await_holding_lock` not linting `parking_lot` Mutex/RwLock

This adds tests for `RwLock` and `parking_lot::{Mutex, RwLock}`, which were added before in 2dc8c083f5, but never tested in UI tests. I noticed this while reading [fasterthanli.me](https://fasterthanli.me/articles/a-rust-match-made-in-hell) latest blog post, complaining that Clippy doesn't catch this for `parking_lot`. (Too many people read his blog, he's too powerful)

Some more things:
- Adds a test for #6446
- Improves the lint message

changelog: [`await_holding_lock`]: Now also lints for `parking_lot::{Mutex, RwLock}`
2022-02-18 10:55:05 +00:00
bors
76f91b6f5a Auto merge of #8442 - rsmantini:issue-8120-fix, r=Manishearth
trigger  `ptr_as_ptr` inside macros

This PR makes `ptr_as_ptr` trigger inside macros

Fixes issue #8120

changelog: ``[`ptr_as_ptr`]`` is now triggered inside macros

r? `@llogiq`
2022-02-17 22:57:23 +00:00
Jason Newcomb
8912d659cd Remove hack testing for cfg attribute in match_single_binding 2022-02-17 14:16:21 -05:00
Rodrigo Mantini
aaeeed6a59 trigger ptr_as_ptr inside macros 2022-02-17 20:16:14 +01:00
Jason Newcomb
8ce2d46cac Check for cfg attrubutes before linting match expressions 2022-02-17 14:04:10 -05:00
flip1995
ea0ce7bb76
Move await_holding_* lints to suspicious and improve doc
Even though the FP for that the lints were moved to pedantic isn't fixed
yet, running the lintcheck tool over the most popular 279 crates didn't
trigger this lint once. I would say that this lint is valuable enough,
despite the known FP, to be warn-by-default. Especially since a pretty
nice workaround exists.
2022-02-17 18:03:17 +01:00
flip1995
cdf9a28006
Improve lint message of await_holding_*
Improves the message of the lints await_holding_lock and
await_holding_refcell_ref. Now also actually tests RwLock.
2022-02-17 18:00:40 +01:00
bors
668b3e47f9 Auto merge of #8218 - Jarcho:redundant_slicing_deref, r=camsteffen
Improve `redundant_slicing` lint

fixes #7972
fixes #7257

This can supersede #7976

changelog: Fix suggestion for `redundant_slicing` when re-borrowing for a method call
changelog: New lint `deref_as_slicing`
2022-02-17 16:08:45 +00:00
bors
7ee2081fb6 Auto merge of #8441 - Jarcho:needless_borrow_temp, r=flip1995
Don't lint `needless_borrow` in method receiver positions

fixes #8408
fixes #8407
fixes #8391
fixes #8367
fixes #8380

This is a temporary fix for `needless_borrow`. The proper fix is included in #8355.

This should probably be merged into rustc before beta branches on Friday. This issue has been reported six or seven times in the past couple of weeks.

changelog: Fix various issues with `needless_borrow` n´. Note to changelog writer: those issues might have been introduced in this release cycle, so this might not matter in the changelog.
2022-02-17 15:51:30 +00:00
Jason Newcomb
9bfcbf4f02 Remove some redundant checks in various matches lints 2022-02-17 10:48:24 -05:00
Jason Newcomb
9af2be8e96 Don't lint needless_borrow in method receiver positions 2022-02-17 16:21:53 +01:00
bors
a4cf91b9c8 Auto merge of #8433 - hellow554:update_default_trait, r=flip1995
Don't lint Default::default if it is the udpate syntax base

changelog: Don't lint `Default::default` it is part of the update syntax

Current clippy warns about this:

```
warning: calling `Foo::default()` is more clear than this expression
  --> src/main.rs:12:11
   |
12 |         ..Default::default()
   |           ^^^^^^^^^^^^^^^^^^ help: try: `Foo::default()`
   |
```

With these changes, it will not lint that particular expression anymore.
2022-02-17 09:13:30 +00:00
Marcel Hellwig
504f3af70e Don't lint Default::default if it is the udpate syntax base
An Update Syntax looks like this:

   Foo {
      a: 3,
      ..Default::default()
    }

Don't lint `Default::default` here
2022-02-17 10:04:25 +01:00
Matthias Krüger
ecf3165567 Rollup merge of #94030 - ChayimFriedman2:issue-94010, r=petrochenkov
Correctly mark the span of captured arguments in `format_args!()`

It should not include the braces, or misspelling suggestions will be wrong.

Fixes #94010.
2022-02-17 06:30:02 +01:00
Jason Newcomb
7724d6773d Move some cases from redundant_slicing to deref_by_slicing 2022-02-17 00:02:33 -05:00
Jason Newcomb
113ac6e15e Split off new lint deref_by_slicing from redundant_slicing 2022-02-17 00:02:26 -05:00
Jason Newcomb
4bdc97c4a6 Account for auto-borrows and precedence in redundant_slicing lint 2022-02-16 23:52:23 -05:00
Jason Newcomb
faeeef3b9c Improve redundant_slicing lint
* Lint when slicing triggers auto-deref
* Lint when slicing returns the same type as dereferencing
2022-02-16 23:52:23 -05:00
Jason Newcomb
a135b52102 Don't lint needless_borrow in method receiver positions 2022-02-16 23:14:39 -05:00
Chayim Refael Friedman
dcdff601fe Correctly mark the span of captured arguments in format_args!()
It should only include the identifier, or misspelling suggestions will be wrong.
2022-02-16 07:34:06 +00:00
Matthias Krüger
e713288791 Rollup merge of #94014 - flip1995:clippy_transmute_lint_regroup, r=dtolnay
Move transmute_undefined_repr back to nursery

There's still open discussion if this lint is ready to be enabled by
default. We want to give us more time to figure this out and prevent
this lint from getting to stable as an enabled-by-default lint.

cc https://github.com/rust-lang/rust-clippy/pull/8432

r? `@Manishearth` `@dtolnay`

I think this is the way to go here. We can re-enable this lint with the next sync, if we should decide to do so. But I would hold of for this release.

We have until Friday (beta branching) to decide if we want to merge this.
2022-02-15 16:02:37 +01:00
flip1995
465cd90866 Move transmute_undefined_repr back to nursery
There's still open discussion if this lint is ready to be enabled by
default. We want to give us more time to figure this out and prevent
this lint from getting to stable as an enabled-by-default lint.
2022-02-15 10:54:38 +01:00
Nicholas Nethercote
64ae3ae006 Overhaul Const.
Specifically, rename the `Const` struct as `ConstS` and re-introduce `Const` as
this:
```
pub struct Const<'tcx>(&'tcx Interned<ConstS>);
```
This now matches `Ty` and `Predicate` more closely, including using
pointer-based `eq` and `hash`.

Notable changes:
- `mk_const` now takes a `ConstS`.
- `Const` was copy, despite being 48 bytes. Now `ConstS` is not, so need a
  we need separate arena for it, because we can't use the `Dropless` one any
  more.
- Many `&'tcx Const<'tcx>`/`&Const<'tcx>` to `Const<'tcx>` changes
- Many `ct.ty` to `ct.ty()` and `ct.val` to `ct.val()` changes.
- Lots of tedious sigil fiddling.
2022-02-15 16:19:59 +11:00
Nicholas Nethercote
d071ce1d57 Overhaul RegionKind and Region.
Specifically, change `Region` from this:
```
pub type Region<'tcx> = &'tcx RegionKind;
```
to this:
```
pub struct Region<'tcx>(&'tcx Interned<RegionKind>);
```

This now matches `Ty` and `Predicate` more closely.

Things to note
- Regions have always been interned, but we haven't been using pointer-based
  `Eq` and `Hash`. This is now happening.
- I chose to impl `Deref` for `Region` because it makes pattern matching a lot
  nicer, and `Region` can be viewed as just a smart wrapper for `RegionKind`.
- Various methods are moved from `RegionKind` to `Region`.
- There is a lot of tedious sigil changes.
- A couple of types like `HighlightBuilder`, `RegionHighlightMode` now have a
  `'tcx` lifetime because they hold a `Ty<'tcx>`, so they can call `mk_region`.
- A couple of test outputs change slightly, I'm not sure why, but the new
  outputs are a little better.
2022-02-15 16:08:52 +11:00
Nicholas Nethercote
5fa961b951 Overhaul TyS and Ty.
Specifically, change `Ty` from this:
```
pub type Ty<'tcx> = &'tcx TyS<'tcx>;
```
to this
```
pub struct Ty<'tcx>(Interned<'tcx, TyS<'tcx>>);
```
There are two benefits to this.
- It's now a first class type, so we can define methods on it. This
  means we can move a lot of methods away from `TyS`, leaving `TyS` as a
  barely-used type, which is appropriate given that it's not meant to
  be used directly.
- The uniqueness requirement is now explicit, via the `Interned` type.
  E.g. the pointer-based `Eq` and `Hash` comes from `Interned`, rather
  than via `TyS`, which wasn't obvious at all.

Much of this commit is boring churn. The interesting changes are in
these files:
- compiler/rustc_middle/src/arena.rs
- compiler/rustc_middle/src/mir/visit.rs
- compiler/rustc_middle/src/ty/context.rs
- compiler/rustc_middle/src/ty/mod.rs

Specifically:
- Most mentions of `TyS` are removed. It's very much a dumb struct now;
  `Ty` has all the smarts.
- `TyS` now has `crate` visibility instead of `pub`.
- `TyS::make_for_test` is removed in favour of the static `BOOL_TY`,
  which just works better with the new structure.
- The `Eq`/`Ord`/`Hash` impls are removed from `TyS`. `Interned`s impls
  of `Eq`/`Hash` now suffice. `Ord` is now partly on `Interned`
  (pointer-based, for the `Equal` case) and partly on `TyS`
  (contents-based, for the other cases).
- There are many tedious sigil adjustments, i.e. adding or removing `*`
  or `&`. They seem to be unavoidable.
2022-02-15 16:03:24 +11:00
James McMurray
b162b11abc Add recursive_format_impl lint
The to_string_in_display lint is renamed to recursive_format_impl
A check is added for the use of self formatted with Display or Debug
inside any format string in the same impl
The to_string_in_display check is kept as is - like in the
format_in_format_args lint

For now only Display and Debug are checked
This could also be extended to other Format traits (Binary, etc.)
2022-02-14 18:49:51 +01:00
bors
4931cab709 Auto merge of #8425 - Jarcho:transmute_8417, r=giraffate
Fix `transmute_undefined_repr` with single field `#[repr(C)]` structs

Fixes: #8417

The description has also been made more precise.

changelog: Fix `transmute_undefined_repr` with single field `#[repr(C)]` structs
changelog: Move `transmute_undefined_repr` back to `correctness`
2022-02-14 06:58:51 +00:00
bors
41c7004cea Auto merge of #8427 - Jarcho:merge_cargo_passes, r=llogiq
Merge cargo lints

changelog: None
2022-02-14 06:14:02 +00:00
nsunderland1
78c2e0bfe9 Document pub requirement for new_without_default lint 2022-02-13 17:07:14 -08:00
Jason Newcomb
eed7e9f618 Merge cargo lints 2022-02-13 17:36:33 -05:00
Jason Newcomb
662df33e97 Fix transmute_undefined_repr with single field #[repr(C)] structs 2022-02-13 13:22:17 -05:00
Jaeyong Sung
48d310e869
add documentation 2022-02-13 13:36:27 +09:00
Jaeyong Sung
2ebe7516a8
add documentation 2022-02-13 13:32:40 +09:00
Jaeyong Sung
2b3e7faf8d
add description 2022-02-13 04:53:30 +09:00
Jaeyong Sung
124bb03b15
changed algorithm 2022-02-13 04:35:36 +09:00
Jaeyong Sung
8faa938a60
fix only_used_in_recursion not to lint when unused_variable 2022-02-13 03:53:23 +09:00
Jaeyong Sung
3a090c9f55
Merge remote-tracking branch 'upstream/master' into only_used_in_recursion 2022-02-13 02:43:49 +09:00
Jaeyong Sung
9055f34b71
Merge remote-tracking branch 'upstream/master' into only_used_in_recursion
# Conflicts:
#	clippy_lints/src/lib.rs
2022-02-13 02:43:23 +09:00
Jaeyong Sung
4f96ca353e
add only_used_in_recursion lint
- fix code that have variables that is "only used in recursion"
- add test
2022-02-13 02:32:09 +09:00
Alex Macleod
e2dc8ca080 Replace a few paths with diagnostic items 2022-02-12 11:44:28 +00:00
Ellen
7c94736953 change to a struct variant 2022-02-12 11:23:53 +00:00
David Tolnay
79644069f0
Downgrade transmute_undefined_repr lint to nursery 2022-02-11 19:40:07 -08:00
mi_sawa
6daa6d5ffe Optimize redundant_clone
by using a static data structure to track transitive relations.
2022-02-12 02:24:32 +09:00
Alex Macleod
41d7c7e059 Migrate dbg_macro to late pass 2022-02-11 15:56:10 +00:00
flip1995
61864b634c Clippy: Fix botstrap fallout 2022-02-10 19:52:08 +01:00
flip1995
611d039814 Merge commit '57b3c4b90f4346b3990c1be387c3b3ca7b78412c' into clippyup 2022-02-10 18:40:06 +01:00
flip1995
0775c06d32
Merge remote-tracking branch 'upstream/master' into rustup 2022-02-10 18:11:27 +01:00
Yuki Okushi
5044e3769e Rollup merge of #93746 - cjgillot:nodefii, r=nikomatsakis
Remove defaultness from ImplItem.

This information is not really used anywhere, except HIR pretty-printing. This makes ImplItem and TraitItem more similar.
2022-02-09 14:12:22 +09:00
Jason Newcomb
c65894cf1a Split out wild_in_or_pats 2022-02-07 13:00:19 -05:00
Jason Newcomb
aa3af30dee Split out rest_pat_in_fully_bound_struct 2022-02-07 12:57:02 -05:00
Jason Newcomb
6477923323 Split out infalliable_detructuring_match 2022-02-07 12:28:57 -05:00
Jason Newcomb
fb1093c561 Split out match_ref_pats 2022-02-07 12:22:27 -05:00
Jason Newcomb
1da26c8a70 Split out match_single_binding 2022-02-07 12:22:27 -05:00
Jason Newcomb
bccf06f601 Split out match_as_ref 2022-02-07 12:22:26 -05:00
Jason Newcomb
75923dff5b Split out wildcard_enum_match_arm and match_wildcard_for_single_variants 2022-02-07 12:22:26 -05:00
Jason Newcomb
dc75695e97 Split out match_wild_err_arm 2022-02-07 12:22:26 -05:00
Jason Newcomb
2a70439ef0 Split out overlapping_arms 2022-02-07 12:22:26 -05:00
Jason Newcomb
f3dd909e0f Split out match_bool 2022-02-07 12:22:26 -05:00
Jason Newcomb
f23dc16e1d Split out single_match 2022-02-07 12:22:26 -05:00
Jason Newcomb
f2b6ed7cb2 Split out redundant_pattern_match 2022-02-07 12:22:24 -05:00
Jason Newcomb
64548250e7 Split out match_same_arms 2022-02-07 12:20:18 -05:00
Jason Newcomb
e41a6fc042 Split out match_like_matches_macro 2022-02-07 12:20:18 -05:00
Jason Newcomb
f7be9564e5 Move matches.rs to mod.rs 2022-02-07 12:20:17 -05:00
bors
3d43826e32 Auto merge of #8305 - camsteffen:util-cleanup, r=flip1995
Factor out several utils, add `path_def_id`

changelog: none

This is generally an effort to reduce the total number of utils. `path_def_id` is added which I believe is more "cross-cutting" and also complements `path_to_local`. Best reviewed one commit at a time.

Added:
* `path_def_id`
* `path_res`

Removed:
 * `is_qpath_def_path`
 * `match_any_diagnostic_items`
 * `expr_path_res`
 * `single_segment_path`
 * `differing_macro_contexts`
 * `is_ty_param_lang_item`
 * `is_ty_param_diagnostic_item`
 * `get_qpath_generics`

Renamed:
* `path_to_res` to `def_path_res`
* `get_qpath_generic_tys` to `qpath_generic_tys`

CC `@Jarcho` since this relates to some of your work and you may have input.
2022-02-07 15:23:23 +00:00
bors
8dc719cb39 Auto merge of #8326 - matthiaskrgr:warn_on_multi_configs, r=xFrednet
warn if we find multiple clippy configs

Fixes #8323

---

*Please write a short comment explaining your change (or "none" for internal only changes)*

changelog: warn if we find multiple clippy configs
2022-02-06 17:19:11 +00:00
bors
093e32052e Auto merge of #8398 - Jarcho:unordered_transmute, r=llogiq
Add lint `transmute_undefined_repr`

Partially implements #3999 and #546

This doesn't consider `enum`s at all right now as those are going to be a pain to deal with. This also allows `#[repr(Rust)]` structs with only one non-zero sized fields. I think those are technically undefined when transmuted.

changelog: Add lint `transmute_undefined_repr`
2022-02-06 16:05:00 +00:00
Jason Newcomb
68993b1f6c Small transmute_float_to_int cleanup 2022-02-06 09:42:10 -05:00
Jason Newcomb
3403b3e717 Add lint transumte_undefined_repr 2022-02-05 16:28:25 -05:00
bors
68b44986de Auto merge of #8365 - Alexendoo:explicit-write-suggestion, r=camsteffen
Add `explicit_write` suggestions for `write!`s with format args

changelog: Add [`explicit_write`] suggestions for `write!`s with format args

Fixes #4542

```rust
writeln!(std::io::stderr(), "macro arg {}", one!()).unwrap();
```

Now suggests:

```
error: use of `writeln!(stderr(), ...).unwrap()`
  --> $DIR/explicit_write.rs:36:9
   |
LL |         writeln!(std::io::stderr(), "macro arg {}", one!()).unwrap();
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `eprintln!("macro arg {}", one!())`
```

---------

r? `@camsteffen` (again, sorry 😛) for the `FormatArgsExpn` change

Before this change `inputs_span` returned a span pointing to just `1` in

```rust
macro_rules! one {
    () => { 1 };
}

`writeln!(std::io::stderr(), "macro arg {}", one!()).unwrap();`
```

And the `source_callsite` of that span didn't include the format string, it was just `one!()`
2022-02-05 17:44:37 +00:00
bors
29cc0d8e59 Auto merge of #8372 - tamaroning:unwrap_used, r=llogiq
make unwrap_used also trigger on .get().unwrap()

fixes #8124
changelog: make the [unwrap_used] lint trigger for code of the form such as `.get(i).unwrap()` and `.get_mut(i).unwrap()`
2022-02-05 14:56:42 +00:00
Alex Macleod
144b4a59c7 Add explicit_write suggestions for write!s with format args 2022-02-05 13:05:08 +00:00
bors
699ee5e31c Auto merge of #8376 - dswij:8373, r=camsteffen
[`chars_next_cmp`] Fix unescaped suggestion

closes #8373

changelog: [`chars_next_cmp`] Fix unescaped suggestion
2022-02-05 00:32:10 +00:00
Camille GILLOT
3edfd5ec3d Remove defaultness from ImplItem. 2022-02-03 18:56:08 +01:00
bors
bef92b864d Auto merge of #8382 - tamaroning:suggest_iter_instead_of_into_iter, r=giraffate
[explicit_counter_loop] suggests `.into_iter()`, despite that triggering [into_iter_on_ref] in some cases

I have modified `fn make_iterator_snippet` in clippy_lints/src/loops/utils.rs ,so this change has some little influence on another lint [manual_flatten] .

fixes #8155

---
changelog: Fix that [`explicit_counter_loop`] suggests `into_iter()` despite that triggering [`into_iter_on_ref`] in some cases
2022-02-02 12:37:18 +00:00
tamaron
f5fd9ded00 chore 2022-02-02 11:25:15 +09:00
Jason Newcomb
e4f45c22e2 Fix ICE in ptr_arg 2022-02-01 15:05:20 -05:00
Jason Newcomb
8ef87455b0 Minor cleanup on transmute lints 2022-02-01 10:58:01 -05:00
lcnr
99af4c8971 remove TyS::same_type
it ignored regions and constants in adts,
but didn't do so for references or any other types.
This seemed quite weird
2022-02-01 11:21:26 +01:00
tamaron
0e1cbc5cd1 fix code 2022-02-01 13:43:39 +09:00
Matthias Krüger
1193abe4c8 multiple configs: add tests 2022-01-31 18:36:15 +01:00
Matthias Krüger
97e5a70f47 warn if we find multiple clippy configs
Fixes #8323
2022-01-31 18:36:15 +01:00