Commit Graph

11453 Commits

Author SHA1 Message Date
Cameron Steffen
5af078ac1b Add flat_map_option lint 2021-04-16 15:23:49 -05:00
bors
eaf0f3df15 Auto merge of #7075 - xFrednet:7054-fp-branches-sharing-code, r=camsteffen,flip1995
Fixing FPs for the `branches_sharing_code` lint

Fixes #7053
Fixes #7054
And an additional CSS adjustment to support dark mode for every inline code. It currently only works in paragraphs, which was an oversight on my part 😅. [Current Example](https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name)

This also includes ~50 lines of doc comments and is therefor not as big as the changes would indicate. 🐧

---

changelog: none

All of these bugs were introduced in this dev version and are therefor not worth a change log entry.

r? `@phansch`
cc: `@camsteffen` since you have a pretty good overview of the `SpanlessEq` implementation 🙃
2021-04-16 18:33:45 +00:00
bors
28dbcd85c8 Auto merge of #7098 - camsteffen:cloned-copied, r=Manishearth
Add `cloned_instead_of_copied` lint

Don't go cloning all willy-nilly.

Featuring a new `get_iterator_item_ty` util!

changelog: Add cloned_instead_of_copied lint

Closes #3870
2021-04-16 17:32:13 +00:00
bors
7f2068cc2b Auto merge of #6568 - Jarcho:redundant_pattern_matching, r=flip1995
Fix: redundant_pattern_matching drop order

Fixes #5746

A note about the change in drop order is added when the scrutinee (or any temporary in the expression) isn't known to be safe to drop in any order (i.e. doesn't implement the `Drop` trait, or contain such a type). There is a whitelist for some `std` types, but it's incomplete. Currently just `Vec<_>`, `Box<_>`, `Rc<_>` and `Arc<_>`, but only if the contained type is also safe to drop in any order.

Another lint for when the drop order changes could be added as allowed by default, but the drop order requirement is pretty subtle in this case. I think the note added to the lint should be enough to make someone think before applying the change.

changelog: Added a note to `redundant_pattern_matching` when the change in drop order might matter
2021-04-16 16:45:59 +00:00
Cameron Steffen
b049c88fbe Eat dogfood 2021-04-16 11:39:31 -05:00
Cameron Steffen
0462666c70 Add cloned_instead_of_copied lint 2021-04-16 11:39:31 -05:00
bors
1e0a3ff55c Auto merge of #6937 - Jarcho:map_entry_suggestion, r=giraffate
Improve `map_entry` suggestion

fixes: #5176
fixes: #4674
fixes: #4664
fixes: #1450

Still need to handle the value returned by `insert` correctly.

changelog: Improve `map_entry` suggestion. Will now suggest `or_insert`, `insert_with` or `match _.entry(_)` as appopriate.
changelog: Fix `map_entry` false positives where the entry api can't be used. e.g. when the map is used for multiple things.
2021-04-16 13:23:23 +00:00
bors
ddc2598230 Auto merge of #7093 - Jarcho:single_match_fp, r=llogiq
Fix `single_match`

fixes: #7038
changelog: Don't suggest an equality check for types which don't implement `PartialEq` in `single_match`
2021-04-16 06:44:26 +00:00
bors
faa97568a0 Auto merge of #7085 - Jarcho:manual_map_autoderef, r=giraffate
Don't allow adjustments for `manual_map`

fixes: #7077

The other option here would be to add the return type to the closure. It would be fine for simple types, but longer types can be rather unwieldy. Could also implement the adjustment manually.

changelog: Don't lint `manual_map` when type adjustments are added. e.g. autoderef
2021-04-16 03:05:52 +00:00
Jason Newcomb
9a55c0c176
Fix single_match
Check for `PartialEq` in addition to `StructuralPartialEq` before suggesting `==`
2021-04-15 22:09:20 -04:00
Jason Newcomb
c02baba1dc
redundant_pattern_matching fix inverted boolean when missing Drop trait # Please enter the commit message for your changes. Lines starting # with '#' will be ignored, and an empty message aborts the commit. # # Date: Fri Apr 2 19:04:45 2021 -0400 # # On branch redundant_pattern_matching # Your branch is ahead of 'origin/redundant_pattern_matching' by 1 commit. # (use "git push" to publish your local commits) # # Changes to be committed: # modified: clippy_lints/src/matches.rs # # Please enter the commit message for your changes. Lines starting # with '#' will be ignored, and an empty message aborts the commit. # # Date: Fri Apr 2 19:04:45 2021 -0400 # # interactive rebase in progress; onto ebc64690d # Last commands done (6 commands done): # pick 25d211ad8 Code cleanup and additional std types checked # r 0c71ce56f redundant_pattern_matching fix inverted boolean when missing Drop trait # No commands remaining. # You are currently editing a commit while rebasing branch 'redundant_pattern_matching' on 'ebc64690d'. # # Changes to be committed: # modified: clippy_lints/src/matches.rs # 2021-04-15 20:37:20 -04:00
Jason Newcomb
b6581636bd
Improve redundant_pattern_matching
Add a note when the drop order change may result in different behaviour.
2021-04-15 20:37:15 -04:00
bors
586a99348c Auto merge of #7049 - Jarcho:remove_match_path, r=camsteffen
Remove `match_path` and `match_qpath`

The only remaining usage is the `author` lint, so the functions are left in for now. The test result for `repl_uninit` changed, the lint was broken before.

The `collapsible_span_lint_calls` and `match_type_on_diag_item` tests have been changed. Both lints were broken when utils was extracted into it's own crate. `match_type_on_diag_item` isn't quite fixed, but it's at least less broken.

changelog: None
2021-04-15 23:54:41 +00:00
Jason Newcomb
f6c5d8d599
Remove all usages of match_path, match_qpath and match_path_ast except the author lint.
Add note to fix `MATCH_TYPE_ON_DIAG_ITEM`
Add false negative test for `uninit_assumed_init`
2021-04-15 19:27:25 -04:00
bors
52c8c9c520 Auto merge of #7090 - camsteffen:pre-expansion-note, r=Manishearth
Add a note for pre-expansion passes

changelog: none

Just had to turn away a PR for using pre-expansion. I don't think that was the first time. So hopefully this will inform people sooner.

r? flip1995
2021-04-15 19:43:58 +00:00
Cameron Steffen
014bf4390c Add note for pre-expansion passes 2021-04-15 12:57:31 -05:00
Jason Newcomb
779d98f6cc
Don't allow adjustments for manual_map 2021-04-15 10:37:42 -04:00
Jason Newcomb
bcf3488007
Minor cleanup of map_entry and a few additional tests. 2021-04-15 08:25:24 -04:00
Jason Newcomb
3323ff7145
map_entry improvements
Suggest using `or_insert_with` when possible
2021-04-15 08:22:40 -04:00
Jason Newcomb
b63a5b56d6
map_entry improvements
Lint `if _.[!]contains_key(&_) { .. } else { .. }` so long as one of the branches contains an insertion.
2021-04-15 08:19:59 -04:00
Jason Newcomb
ce5e927713
Improve map_entry lint
Fix false positives where the map is used before inserting into the map.
Fix false positives where two insertions happen.
Suggest using `if let Entry::Vacant(e) = _.entry(_)` when `or_insert` might be a semantic change
2021-04-15 08:19:40 -04:00
xFrednet
0b4af7257d PR suggestions and removing utils::parent_node_is_if_expr 2021-04-14 20:11:08 +02:00
xFrednet
2992b19c82 Added inferred local type comparion to SpanlessEq 2021-04-14 20:06:26 +02:00
xFrednet
7e90bb671a Fixed website inline code background 2021-04-14 20:06:26 +02:00
xFrednet
cbde4f2c67 parent_node_is_if_expr now also recognizes if let as parent if 2021-04-14 20:06:26 +02:00
bors
b1c675f3fc Auto merge of #7070 - camsteffen:changelog-stderr, r=flip1995
Fix changelog check output

Error messages are more helpful if you can see them.

changelog: none
2021-04-14 08:25:14 +00:00
bors
24921df7bd Auto merge of #7039 - phansch:melt-ice, r=flip1995
tabs_in_doc_comments: Fix ICE due to char indexing

This is a quick-fix for an ICE in `tabs_in_doc_comments`. The problem
was that we we're indexing into possibly multi-byte characters, such as '位'.

More specifically `get_chunks_of_tabs` was returning indices into
multi-byte characters. Those were passed on to a `Span` creation that
then caused the ICE.

This fix makes sure that we don't return indices that point inside a
multi-byte character. *However*, we are still iterating over unicode
codepoints, not grapheme clusters. So a seemingly single character like y̆ ,
which actually consists of two codepoints, will probably still cause
incorrect spans in the output. But I don't think we handle those cases
anywhere in Clippy currently?

Fixes #5835

changelog: Fix ICE in `tabs_in_doc_comments`
2021-04-14 04:53:24 +00:00
bors
19740d9334 Auto merge of #7076 - rail-rain:missing_const_for_fn, r=phansch
Fix a FP in `missing_const_for_fn`

where a function that calls a standard library function whose constness
is unstable is considered as being able to be a const function. Fixes #5995.

The core change is the move from `rustc_mir::const_eval::is_min_const_fn` to `rustc_mir::const_eval::is_const_fn`. I'm not clear about the difference in their purpose between them so I'm not sure if it's acceptable to call `qualify_min_const_fn::is_min_const_fn` this way now.

---

changelog: `missing_const_for_fn`: No longer lints when an unstably const function is called
2021-04-14 04:39:25 +00:00
Philipp Hansch
cbdebd97ec Explain why we use char_indices() instead of chars() 2021-04-14 06:30:51 +02:00
rail
26a1989041 Fix a FP in missing_const_for_fn
where a function that calls a standard library function whose constness
is unstable is considered as being able to be a const function
2021-04-14 09:23:44 +12:00
bors
8f3c2450c2 Auto merge of #7074 - camsteffen:diag-methods, r=llogiq
Split `is_diagnostic_assoc_item`

changelog: none

* Split `is_diagnostic_assoc_item` into `is_diag_item_method` and `is_diag_trait_item`
  * `is_diag_item_method` is a bit more nuanced with the `tcx.type_of(impl_id).ty_adt_def()` step, so it seems better to keep that separate.
  * No need to generalize over traits and Adt's since we know which one we want at compile time
  * "item" vs. "method" because a trait may have associated items.
* Replaces the usage of the `sym::slice` diagnostic item with the `slice_alloc` lang item. The diagnostic item should be removed from rustc because it is on the `slice_alloc` impl, not slice itself (and it's not needed).
2021-04-13 20:31:22 +00:00
Cameron Steffen
0d144298ee Improve changelog check error handling 2021-04-13 14:53:12 -05:00
Cameron Steffen
76bd5d232c Refactor diagnostic item methods 2021-04-13 14:10:40 -05:00
bors
e9728b80ce Auto merge of #7068 - boxdot:remove-std-ptr-null, r=camsteffen
Remove paths::STD_PTR_NULL

Related to #5393

changelog: none
2021-04-12 18:37:31 +00:00
bors
2a96bc434b Auto merge of #7067 - TaKO8Ki:fix-false-negative-on-needless-return, r=llogiq
Fix a false negative on `needless return`

closes #7042

changelog: fix a false negative on `needless return`
2021-04-12 18:00:38 +00:00
boxdot
d6beb18411
Remove paths::STD_PTR_NULL 2021-04-12 18:35:47 +02:00
bors
411c0df1d0 Auto merge of #7064 - ThibsG:WrongSelfFix, r=giraffate
Fix FP in `wrong_self_convention` lint

Previously, this lint didn't check into impl block when it was implementing a trait.
Recent improvements (#6924) have moved this check and some impl blocks are now checked but they shouldn't, such as in #7032.

Fixes #7032

changelog: Fix FP when not taking `self` in impl block for `wrong_self_convention` lint
2021-04-12 14:16:17 +00:00
Takayuki
e6c67ad2bf fix limit_stderr_length error 2021-04-12 21:58:34 +09:00
Takayuki
0218a3b12f add tests for a false negative on needless_return 2021-04-12 21:37:19 +09:00
Takayuki
53260df2fa fix a false negative on needless_return 2021-04-12 21:36:49 +09:00
bors
c3ef585328 Auto merge of #6982 - Jarcho:explicit_into_iter_loop_fp, r=flip1995
Fix `explicit_into_iter_loop`

fixes: #6900

changelog: Only lint when `into_iter` is an implementation of `IntoIterator`
2021-04-12 09:45:32 +00:00
bors
aecccbc579 Auto merge of #7047 - camsteffen:lang-ctor, r=flip1995
Introduce `is_lang_ctor`

changelog: none

Replaces `is_some_ctor` and `is_ok_ctor`. Removes many path usages.
2021-04-12 08:52:10 +00:00
bors
f0ceb28ba1 Auto merge of #7065 - rail-rain:warn_copy_pass_by_ref, r=Manishearth
Add a note on the issue #5953

Hello,

I thought it would be better to have a note and warning about this issue considering it introduced an UB in the past even with the "Search on Github" feature.

---

changelog: Add a note on the issue #5953 to the known problems section.
2021-04-12 04:38:42 +00:00
rail
fb54b703c7 Add a note on the issue #5953 2021-04-12 15:32:54 +12:00
bors
a6b514c603 Auto merge of #7059 - camsteffen:filter-map, r=flip1995
Deprecate `filter_map`

Since #6591, `filter_map` does not even lint `filter().map()`. The cases that are still linted make no sense IMO. So this just removes/deprecates it.

changelog: Deprecate `filter_map` lint

Closes #3424
Fixes #7050
2021-04-11 18:24:23 +00:00
bors
67fad0139f Auto merge of #6905 - ThibsG:fpSingleComponentPathImports5210, r=giraffate
Fix FP in `single_component_path_imports` lint

Fix FP in  `single_component_path_imports` lint when the import is reused with `self`, like in `use self::module`.

Fixes #5210

changelog: none
2021-04-11 14:18:38 +00:00
ThibsG
3ce6f0d022 Fix FP in wrong_self_convention lint 2021-04-11 13:29:08 +02:00
bors
75e20ba6a2 Auto merge of #7063 - daxpedda:debug-assert-panic, r=Manishearth
Fix false-positive `debug_assert` in `panic`

This fixes a false-positive in `clippy::panic` when `debug_assert` is used with a message.

Fixes https://github.com/rust-lang/rust-clippy/issues/7062.

changelog: Fix false-positive in `panic` when `debug_assert` is used with a message
2021-04-10 22:14:06 +00:00
Cameron Steffen
a45faf66f3 Deprecate filter_map 2021-04-10 16:59:59 -05:00
daxpedda
cb14e7ebf4
Fix false-positive debug_assert in panic 2021-04-10 23:37:18 +02:00