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Author SHA1 Message Date
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
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
a7fa264ae7 Auto merge of #74821 - oli-obk:const_eval_read_uninit_fast_path, r=wesleywiser 
Check whether locals are too large instead of whether accesses into them are too large

Essentially this stops const prop from attempting to optimize

```rust
let mut x = [0_u8; 5000];
x[42] = 3;
```

I don't expect this to be a perf improvement without #73656 (which is also where the lack of this PR will be a perf regression).

r? @wesleywiser
 2020-08-07 15:28:07 +00:00
Ryan1729
fe9ad57e98 copy over *.fixed file 2020-08-06 20:28:29 -06:00
Ryan Wiedemann
49c7e39d03 Apply suggestions from code review 
Co-authored-by: Philipp Krones <hello@philkrones.com>
 2020-08-06 07:57:31 -06:00
Ryan1729
b0c8c7af16 add newline to transmutes_expressible_as_ptr_casts.rs 2020-08-06 04:49:06 -06:00
Ryan1729
ded2d6c233 add extra error message to the expected stderr for transmutes_expressible_as_ptr_casts test 2020-08-06 04:24:25 -06:00
Ryan1729
94340d6e17 add documentation to functions that call do_check and add a test against lint ordering changing 2020-08-06 04:24:25 -06:00
Ryan1729
ccc4747f46 get the expected number of errors by acknowledging that other lints are covering the same ground 2020-08-06 04:24:25 -06:00
Ryan1729
de05212987 try putting the can_be_expressed_as_pointer_cast at the top and find that we still get an ICE 2020-08-06 04:24:24 -06:00
Ryan1729
46ef4e8651 write currently failing test for transmutes_expressible_as_ptr_casts 
There are 5 errors, when there should be 7.
 2020-08-06 04:24:24 -06:00
Ryan1729
5e84b8c2fb run cargo dev new_lint then move transmutes_expressible_as_ptr_casts into transmute module 2020-08-06 04:24:24 -06:00
liuzhenyu
24a6130da2 fix typos 2020-08-02 23:20:00 +08:00
Oliver Scherer
98f3c79385 Update clippy ui test. 
The reason we do not trigger these lints anymore is that clippy sets the mir-opt-level to 0, and the recent changes subtly changed how the const propagator works.
 2020-07-29 22:14:19 +02:00
flip1995
d164ab65f7 Merge commit 'da5a6fb1b65ec6581a67e942a3850f6bc15a552c' into clippyup 2020-07-26 21:07:07 +02:00
flip1995
6f25adbd5a Merge commit '2ca58e7dda4a9eb142599638c59dc04d15961175' into clippyup 2020-07-14 14:59:59 +02:00
Manish Goregaokar
b57ceb45b0 Rollup merge of #72920 - oli-obk:const_transmute, r=RalfJung 
Stabilize `transmute` in constants and statics but not const fn

cc #53605 (leaving issue open so we can add `transmute` to `const fn` later)

Previous attempt: #64011

r? @RalfJung

cc @rust-lang/wg-const-eval
 2020-07-11 08:53:06 -07:00
Oliver Scherer
1eb0053dcd Stabilize transmute in constants and statics but not const fn 2020-07-11 09:22:17 +02:00
Tamir Duberstein
cf91c54cc6 Avoid "whitelist" 
Other terms are more inclusive and precise.
 2020-07-10 07:39:28 -04:00
Eduard-Mihai Burtescu
30c046ede4 Use 'tcx for references to AccessLevels wherever possible. 2020-07-03 00:04:48 +03:00
Dylan MacKenzie
3c5ee3300f Update tests 2020-06-28 10:08:12 -07:00
flip1995
80bcbf521c Merge commit 'c2c07fa9d095931eb5684a42942a7b573a0c5238' into clippyup 2020-06-23 17:05:22 +02:00
Aaron Hill
e11b873c70 Stop using old version of syn in rustc-workspace-hack 
None of the tools seem to need syn 0.15.35, so we can just build syn
1.0.

This was causing an issue with clippy's `compile-test` program: since
multiple versions of `syn` would exist in the build directory, we would
non-deterministically pick one based on filesystem iteration order. If
the pre-1.0 version of `syn` was picked, a strange build error would
occur (see
https://github.com/rust-lang/rust/pull/73594#issuecomment-647671463)

To prevent this kind of issue from happening again, we now panic if we
find multiple versions of a crate in the build directly, instead of
silently picking the first version we find.
 2020-06-22 13:29:39 -04:00
Lzu Tao
c9bd35cac3 Migrate to numeric associated consts 2020-06-10 01:35:47 +00:00
Lzu Tao
8db24840f7 Merge commit 'ff0993c5e9162ddaea78e83d0f0161e68bd4ea73' into clippy 2020-06-09 14:36:01 +00:00
flip1995
b6c58f0d72 Temp fix: don't run cargo lint tests in rustc test suite 2020-05-28 17:19:30 +02:00
flip1995
a0e9f9bd0d Merge commit '7ea7cd165ad6705603852771bf82cc2fd6560db5' into clippyup2 2020-05-28 15:45:24 +02:00
bors
8164832c4b Auto merge of #68717 - petrochenkov:stabexpat, r=varkor 
Stabilize fn-like proc macros in expression, pattern and statement positions

I.e. all the positions in which stable `macro_rules` macros are supported.

Depends on https://github.com/rust-lang/rust/pull/68716 ("Stabilize `Span::mixed_site`").

cc https://github.com/rust-lang/rust/issues/54727
cc https://github.com/rust-lang/rust/issues/54727#issuecomment-580647446

Stabilization report: https://github.com/rust-lang/rust/pull/68717#issuecomment-623197503.
 2020-05-19 03:11:32 +00:00
flip1995
f1d3086492 Merge commit 'e214ea82ad0a751563acf67e1cd9279cf302db3a' into clippyup 2020-05-17 17:36:26 +02:00
flip1995
d13d8987b0 Merge commit '43a1777b89cf6791f9e20878b4e5e3ae907867a5' into clippyup 2020-05-11 20:23:47 +02:00
Vadim Petrochenkov
2d10babb71 Stabilize fn-like proc macros in expression, pattern and statement positions 2020-05-03 19:24:41 +03:00
CrazyRoka
20c069beec Fixed incorrect suggestion of clone_double_ref lint 
- Added `<_>` to suggestion
- Changed help message
 2020-04-29 22:40:57 +03:00
flip1995
cd3480991a
Rustup to rust-lang/rust#71518 2020-04-29 15:48:43 +02:00
Eduardo Broto
fc5fc6378c Test that we lint the awaited expression 2020-04-27 21:29:31 +02:00
Eduardo Broto
3a96f548d1 used_underscore_binding: do not lint on await desugaring 2020-04-27 21:20:08 +02:00
bors
d13ffbe3fe Auto merge of #5522 - CrazyRoka:match_vec_item, r=phansch 
New  lint `match_vec_item`

Added new lint to warn a match on index item which can panic. It's always better to use `get(..)` instead.
Closes #5500
changelog: New lint `match_on_vec_items`
 2020-04-27 06:02:05 +00:00
Eduardo Broto
303e7d1af8 Split tests in unix/non-unix 2020-04-26 21:27:29 +02:00
Eduardo Broto
4a405c9977 Remove some OSes from the test to comply with stderr line limit 2020-04-26 21:27:29 +02:00
Eduardo Broto
ce50e42ed6 Use the span of the attribute for the error message 2020-04-26 21:27:29 +02:00
Eduardo Broto
d24a106395 Apply suggestions from PR review 
- Show just one error message with multiple suggestions in case of
  using multiple times an OS in target family position
- Only suggest #[cfg(unix)] when the OS is in the Unix family
- Test all the operating systems
 2020-04-26 21:27:29 +02:00
Eduardo Broto
149f6d6046 Implement mismatched_target_os lint 2020-04-26 21:27:29 +02:00
CrazyRoka
940c662654 Small lint update 
- Changed lint category to `correctness`
- Moved main function to bottom in test file
- Added `FIXME` comment to `span_lint_and_sugg` to improve later
 2020-04-26 18:00:51 +03:00
bors
07dd5fada9 Auto merge of #5511 - alex-700:fix-redundant-pattern-matching, r=flip1995 
Fix redundant_pattern_matching lint

fixes #5504

changelog: Fix suggestion in `redundant_pattern_matching` for macros.
 2020-04-25 21:41:56 +00:00
bors
44eb953adc Auto merge of #5525 - flip1995:issue_1654, r=phansch 
Don't trigger while_let_on_iterator when the iterator is recreated every iteration

r? @phansch

Fixes #1654

changelog: Fix false positive in [`while_let_on_iterator`]
 2020-04-25 21:29:03 +00:00
bors
a76bfd46c5 Auto merge of #5530 - ebroto:issue_5524, r=flip1995 
map_clone: avoid suggesting `copied()` for &mut

changelog: map_clone: avoid suggesting `copied()` for &mut

Fixes #5524
 2020-04-25 21:16:06 +00:00
Eduardo Broto
806d973adc map_clone: avoid suggesting copied() for &mut 2020-04-25 22:52:19 +02:00
Aleksei Latyshev
69fe6b4c98
fix redundant_pattern_matching lint 
- now it gives correct suggestion in case of macros
- better tests
- remove a couple of non-relevant tests
 2020-04-25 23:51:30 +03:00