Commit graph

1741 commits

Author SHA1 Message Date
Gernot Ohner
171845d5a8 Reorder ExprKinds in hash_expr alphabetically 2023-11-06 11:51:07 -07:00
bors
2d9af160af Auto merge of #117507 - nnethercote:rustc_span, r=Nilstrieb
`rustc_span` cleanups

Just some things I found while looking over this crate.

r? `@oli-obk`
2023-11-03 14:57:40 +00:00
y21
c9d2961100 teach eager_or_lazy that arithmetic ops can panic 2023-11-02 23:53:00 +01:00
Philipp Krones
77c1e3aaa1 Merge commit '09ac14c901abc43bd0d617ae4a44e8a4fed98d9c' into clippyup 2023-11-02 17:35:56 +01:00
Philipp Krones
62a82b361c
Format let-chains across the code base
In the updated nightly version, it seems that rustfmt now supports formatting
let-chains. Since we're using them a lot, it's a lot of reformatting.
2023-11-02 17:24:30 +01:00
Philipp Krones
95dc7be92f
Merge remote-tracking branch 'upstream/master' into rustup 2023-11-02 17:24:19 +01:00
Nicholas Nethercote
e1ec2d5cc9 Minimize pub usage in source_map.rs.
Most notably, this commit changes the `pub use crate::*;` in that file
to `use crate::*;`. This requires a lot of `use` items in other crates
to be adjusted, because everything defined within `rustc_span::*` was
also available via `rustc_span::source_map::*`, which is bizarre.

The commit also removes `SourceMap::span_to_relative_line_string`, which
is unused.
2023-11-02 19:35:00 +11:00
Camille GILLOT
aae86ccc47 Rename hook. 2023-11-01 16:49:18 +00:00
Dinu Blanovschi
bb9cc6d47c refactor: extract common pat_is_wild to clippy_utils
This function was previously defined for the iter_kv_map,
for_kw_map, and unused_enumerate_index lints. This commit extracts
it into clippy_utils.
2023-11-01 14:19:23 +01:00
Gernot Ohner
6d840652dc Add branches in eq_expr 2023-10-30 18:04:36 -06:00
Gernot Ohner
67d379ba42 Reorder ExprKinds in eq_expr to alphabetical 2023-10-30 15:54:53 -06:00
Gernot Ohner
ed982afc8f Expliticly specify else branches in hir_utils::hash_expr 2023-10-30 15:16:23 -06:00
bors
325e9fd339 Auto merge of #11723 - Alexendoo:clippy-utils-internal, r=Jarcho
Remove internal feature from clippy_utils

It's only used to gate a few `const`s, removing the feature gate means it doesn't have to be recompiled when moving between a normal and `-F internal` build/test/etc

changelog: none
2023-10-30 17:11:53 +00:00
David Tolnay
2e907aa90c Rename Since -> StableSince in preparation for a DeprecatedSince 2023-10-29 21:39:57 -07:00
bors
f2a0776f77 Auto merge of #116447 - oli-obk:gen_fn, r=compiler-errors
Implement `gen` blocks in the 2024 edition

Coroutines tracking issue https://github.com/rust-lang/rust/issues/43122
`gen` block tracking issue https://github.com/rust-lang/rust/issues/117078

This PR implements `gen` blocks that implement `Iterator`. Most of the logic with `async` blocks is shared, and thus I renamed various types that were referring to `async` specifically.

An example usage of `gen` blocks is

```rust
fn foo() -> impl Iterator<Item = i32> {
    gen {
        yield 42;
        for i in 5..18 {
            if i.is_even() { continue }
            yield i * 2;
        }
    }
}
```

The limitations (to be resolved) of the implementation are listed in the tracking issue
2023-10-29 00:03:52 +00:00
Andre Bogus
1ed1001440 Fix missing parenthesis in suboptimal floating point help 2023-10-27 16:28:10 +02:00
Alex Macleod
f4b4e2ca1b Remove internal feature from clippy_utils 2023-10-27 13:13:26 +00:00
Oli Scherer
0c8caee7b9 Add gen blocks to ast and do some broken ast lowering 2023-10-27 13:05:48 +00:00
David Tolnay
d736992ac9 Parse rustc version at compile time 2023-10-26 18:55:05 -07:00
bors
2f0f4ddcf7 Auto merge of #11698 - a1phyr:waker_clone_and_wake, r=y21
Add `waker_clone_and_wake` lint to check needless `Waker` clones

Check for patterns of `waker.clone().wake()` and replace them with `waker.wake_by_ref()`.

An alternative name could be `waker_clone_then_wake`

changelog: [ `waker_clone_wake`]: new lint
2023-10-26 21:01:40 +00:00
David Tolnay
76d7af0df1 Expose a non-Symbol way to access current rustc version string 2023-10-24 18:11:20 -07:00
David Tolnay
f4f5b05cbb Handle structured stable attribute 'since' version in clippy 2023-10-24 18:00:26 -07:00
Benoît du Garreau
f8790963d9 Add a lint to check needless Waker clones 2023-10-24 09:58:23 +02:00
Gernot Ohner
a799249766 Add additional branches to hir_utils::eq_expr 2023-10-23 23:22:30 -06:00
Alex Macleod
4622203c9b Move configuration to new clippy_config crate 2023-10-23 20:05:10 +00:00
Alex Macleod
7347c1803f Set existing doc-tests to no_run 2023-10-23 15:28:26 +00:00
y21
d6fc606259 [map_identity]: recognize tuples 2023-10-21 15:40:34 +02:00
Philipp Krones
8e7d1678c4 Merge commit '2b030eb03d9e5837440b1ee0b98c50b97c0c5889' into clippyup 2023-10-21 14:16:11 +02:00
Philipp Krones
5f031561ef
Merge remote-tracking branch 'upstream/master' into rustup 2023-10-21 13:41:46 +02:00
Oli Scherer
d9259fdedd s/generator/coroutine/ 2023-10-20 21:14:01 +00:00
Oli Scherer
868e513935 s/Generator/Coroutine/ 2023-10-20 21:10:38 +00:00
bors
e230f19e18 Auto merge of #11521 - y21:issue9122, r=llogiq
[`map_identity`]: allow closure with type annotations

Fixes #9122

`.map(|a: u32| a)` can help type inference, so we should probably allow this and not warn about "unnecessary map of the identity function"

changelog: [`map_identity`]: allow closure with type annotations
2023-10-20 13:28:30 +00:00
bors
9574d28cb6 Auto merge of #11683 - Alexendoo:msrv-config, r=Manishearth,flip1995
Deserialize `Msrv` directly in `Conf`

Gives the error a span pointing to the invalid config value

Also puts `Conf` itself in the `OnceLock` rather than just the `Msrv` for [the `register_late_mod_pass` work](https://github.com/rust-lang/rust/pull/116731) since it will be used from two different callbacks

changelog: none
2023-10-19 11:51:08 +00:00
Alex Macleod
1528c1db47 Deserialize Msrv directly in Conf 2023-10-18 20:35:09 +00:00
jonboh
8b02dac542 add lint for struct field names
side effect for `enum_variants`:
use .first() instead of .get(0) in enum_variants lint
move to_camel_case to str_util module
move module, enum and struct name repetitions check to a single file `item_name_repetitions`
rename enum_variants threshold config option
2023-10-18 19:20:08 +02:00
lcnr
d9dc5ee072 AliasTy::new instead of tcx method 2023-10-18 13:57:19 +02:00
Arthur Lafrance
9ee26d078d fix lint failures in clippy 2023-10-16 19:50:31 -07:00
bors
ef95be517c Auto merge of #11609 - y21:get_first_non_primitives, r=giraffate
[`get_first`]: lint on non-primitive slices

Fixes #11594

I left the issue open for a couple days before making the PR to see if anyone has something to say, but it looks like there aren't any objections to removing this check that prevented linting on non-primitive slices, so here's the PR now.
There's a couple of instances in clippy itself where we now emit the lint. The actual relevant change is in the first commit and fixing the `.get(0)` instances in clippy itself is in the 2nd commit.

changelog: [`get_first`]: lint on non-primitive slices
2023-10-15 23:53:22 +00:00
y21
bba155ea9d move changed logic to into its own util function 2023-10-09 21:57:44 +02:00
y21
0b60531e42 [map_identity]: allow closure with type annotations 2023-10-09 21:39:28 +02:00
Philipp Krones
8ebed4cc1a Merge commit 'b105fb4c39bc1a010807a6c076193cef8d93c109' into clippyup 2023-10-06 17:35:45 +02:00
Philipp Krones
b8677e54d4
Bump Clippy version -> 0.1.75 2023-10-06 17:32:44 +02:00
Philipp Krones
82c3064c47
Merge remote-tracking branch 'upstream/master' into rustup 2023-10-06 17:31:44 +02:00
Alex Macleod
dcc400191e Fix items_after_test_module for non root modules, add applicable suggestion 2023-10-06 12:46:04 +00:00
Jason Newcomb
9de3e6c928 Add more diagnostic items for clippy 2023-10-05 18:21:47 -04:00
y21
e6f29f1900 dogfood 2023-10-04 18:08:30 +02:00
bors
f107a50b23 Auto merge of #115025 - ouz-a:ouz_testing, r=lcnr
Make subtyping explicit in MIR

This adds new mir-opt that pushes new `ProjectionElem` called `ProjectionElem::Subtype(T)` to `Rvalue` of a subtyped assignment so we can unsoundness issues like https://github.com/rust-lang/rust/issues/107205

Addresses https://github.com/rust-lang/rust/issues/112651

r? `@lcnr`
2023-10-03 10:02:52 +00:00
ouz-a
ea4b38820b subtyping_projections 2023-10-02 23:37:49 +03:00
bors
3169423ce9 Auto merge of #115670 - Zoxc:outline-panic-macro-1, r=Mark-Simulacrum
Partially outline code inside the panic! macro

This outlines code inside the panic! macro in some cases. This is split out from https://github.com/rust-lang/rust/pull/115562 to exclude changes to rustc.
2023-10-01 05:56:47 +00:00
Maybe Waffle
a4d11d936e Reverse postorder instead of using reversed postorder 2023-09-28 23:50:56 +00:00
bors
91997a4df4 Auto merge of #11565 - RalfJung:mir_to_const, r=Jarcho
mir_to_const improvements

This simplifies some code and also fixes the float array handling to properly take into account the `offset`, and to work with little-endian targets.

Fixes https://github.com/rust-lang/rust-clippy/issues/11488
changelog: none
2023-09-28 17:59:05 +00:00
bors
3b75db7aa6 Auto merge of #116163 - compiler-errors:lazyness, r=oli-obk
Don't store lazyness in `DefKind::TyAlias`

1. Don't store lazyness of a type alias in its `DefKind`, but instead via a query.
2. This allows us to treat type aliases as lazy if `#[feature(lazy_type_alias)]` *OR* if the alias contains a TAIT, rather than having checks for both in separate parts of the codebase.

r? `@oli-obk` cc `@fmease`
2023-09-27 01:48:53 +00:00
Alex Macleod
ec2f62677f Add manual_hash_one lint 2023-09-26 13:49:15 +00:00
Michael Goulet
55074827b5 Don't store lazyness in DefKind 2023-09-26 02:53:59 +00:00
Ralf Jung
0f198579d0 mir_to_const: fix handling of float arrays 2023-09-25 17:02:07 +02:00
Ralf Jung
ce45221163 simply some valtree-to-const conversion 2023-09-25 16:23:47 +02:00
Ralf Jung
84d6894f26 it's not Miri but MIR constants 2023-09-25 16:19:02 +02:00
Philipp Krones
772296c50e Merge commit '7671c283a50b5d1168841f3014b14000f01dd204' into clippyup 2023-09-25 11:28:58 +02:00
Philipp Krones
903add0c11
Fix dogfood fallout 2023-09-25 10:31:51 +02:00
Philipp Krones
81fe8dc084
Merge remote-tracking branch 'upstream/master' into rustup 2023-09-25 10:26:11 +02:00
Oli Scherer
5ee167e00d Add a way to decouple the implementation and the declaration of a TyCtxt method. 2023-09-22 09:23:15 +00:00
bors
84917c83a8 Auto merge of #114776 - fee1-dead-contrib:enable-effects-in-libcore, r=oli-obk
Enable effects for libcore

~~r? `@oli-obk~~`

forgot you are on vacation, oops
2023-09-22 07:00:52 +00:00
Deadbeef
74573fbab9 fix clippy errors (ignore effects in certainty) 2023-09-22 00:05:52 +00:00
Michael Goulet
823bcb478b Record asyncness span in HIR 2023-09-21 19:18:14 +00:00
Ralf Jung
2ea6ac5673 rename mir::Constant -> mir::ConstOperand, mir::ConstKind -> mir::Const 2023-09-21 08:12:30 +02:00
Ralf Jung
b30cefc775 move ConstValue into mir
this way we have mir::ConstValue and ty::ValTree as reasonably parallel
2023-09-19 11:11:02 +02:00
Alex Macleod
32d3387c80 used_underscore_bindings: respect lint levels on the binding definition 2023-09-17 20:40:51 +00:00
Jason Newcomb
fed036a57c Fix cycle detection in needless_borrow 2023-09-15 19:13:34 -04:00
bors
9756a13580 Auto merge of #115677 - matthewjasper:let-expr-recovery, r=b-naber
Improve invalid let expression handling

- Move all of the checks for valid let expression positions to parsing.
- Add a field to ExprKind::Let in AST/HIR to mark whether it's in a valid location.
- Suppress some later errors and MIR construction for invalid let expressions.
- Fix a (drop) scope issue that was also responsible for #104172.

Fixes #104172
Fixes #104868
2023-09-14 19:56:55 +00:00
Alex Macleod
c29de92d85 Return a value from find_format_args instead of using a callback 2023-09-14 15:53:32 +00:00
Ralf Jung
477a9b88bf fix clippy (and MIR printing) handling of ConstValue::Indirect slices 2023-09-14 11:56:55 +02:00
Ralf Jung
b2d5d68c58 cleanup op_to_const a bit; rename ConstValue::ByRef → Indirect 2023-09-14 07:27:30 +02:00
Ralf Jung
2aaaeb4e81 use AllocId instead of Allocation in ConstValue::ByRef 2023-09-14 07:26:24 +02:00
Philipp Krones
471469d30f Merge commit '98363cbf6a7c3f8b571a7d92a3c645bb4376e4a6' into clippyup 2023-09-12 18:44:06 +02:00
Matthew Jasper
ab08a3d7b2 Update tools and fulldeps tests 2023-09-11 15:51:19 +00:00
Alex Macleod
cc8c0e0099 Ignore span's parents in collect_ast_format_args/find_format_args 2023-09-08 12:40:21 +00:00
John Kåre Alsaker
b5941a2fd5 Partially outline code inside the panic! macro 2023-09-08 14:05:57 +02:00
Philipp Krones
d2b08432db
Merge remote-tracking branch 'upstream/master' into rustup 2023-09-07 21:43:06 +02:00
John Kåre Alsaker
0f74faf158 Use Freeze for SourceFile.lines 2023-09-07 13:05:05 +02:00
Camille GILLOT
c3170771f3 Use relative positions inside a SourceFile. 2023-09-03 12:56:10 +00:00
cui fliter
b0eaa84cfb fix some comments
Signed-off-by: cui fliter <imcusg@gmail.com>
2023-09-02 07:30:01 +08:00
bors
3da21b089f Auto merge of #11396 - y21:issue11345, r=Jarcho
new lint: `iter_out_of_bounds`

Closes #11345

The original idea in the linked issue seemed to be just about arrays afaict, but I extended this to catch some other iterator sources such as `iter::once` or `iter::empty`.

I'm not entirely sure if this name makes a lot of sense now that it's not just about arrays anymore (specifically, not sure if you can call `.take(1)` on an `iter::Empty` to be "out of bounds"?).

changelog: [`iter_out_of_bounds`]: new lint
2023-08-30 19:51:32 +00:00
bors
af02b43015 Auto merge of #115183 - flip1995:clippyup, r=Manishearth,oli-obk
Update Clippy

r? `@oli-obk` Assigning you, because something broke with ui_test:

```
tests/ui/crashes/ice-7272.rs FAILED:
command: "<unknown>"

A bug in `ui_test` occurred: called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }

full stderr:

```

(and that 103 times)

Thought I would ping you, before starting to investigate. Maybe you know what's going on.
2023-08-29 17:03:26 +00:00
bors
b97eaab558 Auto merge of #11387 - y21:issue11371, r=blyxyas
[`unnecessary_unwrap`]: lint on `.as_ref().unwrap()`

Closes #11371

This turned out to be a little more code than I originally thought, because the lint also makes sure to not lint if the user tries to mutate the option:
```rs
if option.is_some() {
  option = None;
  option.unwrap(); // don't lint here
}
```
... which means that even if we taught this lint to recognize `.as_mut()`, it would *still* not lint because that would count as a mutation. So we need to allow `.as_mut()` calls but reject other kinds of mutations.
Unfortunately it doesn't look like this is possible with `is_potentially_mutated` (seeing what kind of mutation happened).
This replaces it with a custom little visitor that does basically what it did before, but also allows `.as_mut()`.

changelog: [`unnecessary_unwrap`]: lint on `.as_ref().unwrap()`
2023-08-28 20:29:42 +00:00
bors
4118738998 Auto merge of #11401 - y21:issue11394, r=xFrednet
[`if_then_some_else_none`]: look into local initializers for early returns

Fixes #11394

As the PR title says, problem was that it only looked for early returns in semi statements. Local variables don't count as such, so it didn't count `let _v = x?;` (or even just `let _ = return;`) as a possible early return and didn't realize that it can't lint then.

Imo the `stmts_contains_early_return` function that was used before is redundant. `contains_return` could already do that if we just made the parameter a bit more generic, just like `for_each_expr`, which can already accept `&[Stmt]`

changelog: [`if_then_some_else_none`]: look into local initializers for early returns
2023-08-28 08:48:35 +00:00
bors
19eaafb920 Auto merge of #11338 - y21:issue11337, r=Centri3
allow trait alias DefIds in `implements_trait_with_env_from_iter`

Fixes #11337

changelog: none
2023-08-24 22:28:29 +00:00
y21
dba7763128 [if_then_some_else_none]: look into local initializers 2023-08-24 23:44:17 +02:00
Philipp Krones
cc61aeea54 Merge commit '080b587854a73f2a8cbaecff1884860a78e2ff37' into clippyup 2023-08-24 21:32:12 +02:00
Philipp Krones
da06825124
Bump Clippy version -> 0.1.74 2023-08-24 21:06:31 +02:00
Philipp Krones
e1ec41b217
Fix dogfood issues 2023-08-24 21:06:18 +02:00
Philipp Krones
ef4d64f1bd
Merge remote-tracking branch 'upstream/master' into rustup 2023-08-24 21:04:57 +02:00
y21
86b6644379 new lint: iter_out_of_bounds 2023-08-24 20:21:55 +02:00
Ralf Jung
70f6321cf9 when terminating during unwinding, show the reason why 2023-08-24 13:28:26 +02:00
y21
42c6492ebc [unnecessary_unwrap]: lint on .as_ref().unwrap() 2023-08-23 21:02:01 +02:00
Esteban Küber
32eecd4b88 Fix clippy lint for identical if/else contraining ? expressions
Follow up to #114819.
2023-08-23 00:58:09 +00:00
Ralf Jung
50f7f8e0f8 give some unwind-related terminators a more clear name 2023-08-20 15:52:38 +02:00
Matthias Krüger
39219a6dd8 Rollup merge of #114819 - estebank:issue-78124, r=compiler-errors
Point at return type when it influences non-first `match` arm

When encountering code like

```rust
fn foo() -> i32 {
    match 0 {
        1 => return 0,
        2 => "",
        _ => 1,
    }
}
```

Point at the return type and not at the prior arm, as that arm has type `!` which isn't influencing the arm corresponding to arm `2`.

Fix #78124.
2023-08-15 20:34:25 +02:00
Guillaume Gomez
9e33b69644 Rollup merge of #114772 - fee1-dead-contrib:typed-did, r=b-naber
Add `{Local}ModDefId` to more strongly type DefIds`

Based on #110862 by `@Nilstrieb`
2023-08-15 14:29:45 +02:00
Esteban Küber
89fdc3e383 Move scrutinee HirId into MatchSource::TryDesugar 2023-08-14 21:43:56 +00:00
y21
f746e19169 allow trait alias DefIds in implements_trait_with_env_from_iter 2023-08-14 19:10:33 +02:00
Nilstrieb
7c87e5c20d Use {Local}ModDefId in many queries 2023-08-14 07:22:48 +00:00
Deadbeef
b8b3e078f9 Remove constness from ImplSource::Param 2023-08-14 02:17:30 +00:00
unvalley
d5dbee4aa0 feat: update manual_retain to lint binary_heap_retain
refactor: rename variable

chore: reorder

test: update naming for msrv
2023-08-13 17:09:39 +09:00
Philipp Krones
f730a2655a Merge commit '1e8fdf492808a25d78a97e1242b835ace9924e4d' into clippyup 2023-08-11 14:05:13 +02:00
Philipp Krones
3927677234
Dogfood and bless tests 2023-08-11 10:53:18 +02:00
Catherine Flores
1ec0501bca Revert "New lint [filter_map_bool_then]"
This reverts commits 978b1daf99 and 3235d9d612.
2023-08-10 17:28:01 -05:00
Philipp Krones
17b9c42572
Merge remote-tracking branch 'upstream/master' into rustup 2023-08-10 21:15:24 +02:00
Matthias Krüger
5f8600939e Rollup merge of #114566 - fmease:type-alias-laziness-is-crate-specific, r=oli-obk
Store the laziness of type aliases in their `DefKind`

Previously, we would treat paths referring to type aliases as *lazy* type aliases if the current crate had lazy type aliases enabled independently of whether the crate which the alias was defined in had the feature enabled or not.

With this PR, the laziness of a type alias depends on the crate it is defined in. This generally makes more sense to me especially if / once lazy type aliases become the default in a new edition and we need to think about *edition interoperability*:

Consider the hypothetical case where the dependency crate has an older edition (and thus eager type aliases), it exports a type alias with bounds & a where-clause (which are void but technically valid), the dependent crate has the latest edition (and thus lazy type aliases) and it uses that type alias. Arguably, the bounds should *not* be checked since at any time, the dependency crate should be allowed to change the bounds at will with a *non*-major version bump & without negatively affecting downstream crates.

As for the reverse case (dependency: lazy type aliases, dependent: eager type aliases), I guess it rules out anything from slight confusion to mild annoyance from upstream crate authors that would be caused by the compiler ignoring the bounds of their type aliases in downstream crates with older editions.

---

This fixes #114468 since before, my assumption that the type alias associated with a given weak projection was lazy (and therefore had its variances computed) did not necessarily hold in cross-crate scenarios (which [I kinda had a hunch about](https://github.com/rust-lang/rust/pull/114253#discussion_r1278608099)) as outlined above. Now it does hold.

`@rustbot` label F-lazy_type_alias
r? `@oli-obk`
2023-08-08 03:30:56 +02:00
León Orell Valerian Liehr
3ff6fd2ac7 Store the laziness of type aliases in the DefKind 2023-08-07 15:54:31 +02:00
Morten Lohne
ab1281f54a fix: Make ConstEvalLateContext::new() public, to match the 'constant_context()' function that it replaced 2023-08-05 21:28:08 +02:00
Matthias Krüger
878a87d5b7 Rollup merge of #114434 - Nilstrieb:indexing-spans, r=est31
Improve spans for indexing expressions

fixes #114388

Indexing is similar to method calls in having an arbitrary left-hand-side and then something on the right, which is the main part of the expression. Method calls already have a span for that right part, but indexing does not. This means that long method chains that use indexing have really bad spans, especially when the indexing panics and that span in coverted into a panic location.

This does the same thing as method calls for the AST and HIR, storing an extra span which is then put into the `fn_span` field in THIR.

r? compiler-errors
2023-08-04 21:31:57 +02:00
Nilstrieb
ed0dfed24f Improve spans for indexing expressions
Indexing is similar to method calls in having an arbitrary
left-hand-side and then something on the right, which is the main part
of the expression. Method calls already have a span for that right part,
but indexing does not. This means that long method chains that use
indexing have really bad spans, especially when the indexing panics and
that span in coverted into a panic location.

This does the same thing as method calls for the AST and HIR, storing an
extra span which is then put into the `fn_span` field in THIR.
2023-08-04 13:17:39 +02:00
Matthias Krüger
1589759334 Rollup merge of #114022 - oli-obk:tait_ice_alias_field_projection, r=cjgillot
Perform OpaqueCast field projection on HIR, too.

fixes #105819

This is necessary for closure captures in 2021 edition, as they capture individual fields, not the full mentioned variables. So it may try to capture a field of an opaque (because the hidden type is known to be something with a field).

See https://github.com/rust-lang/rust/pull/99806 for when and why we added OpaqueCast to MIR.
2023-08-04 09:18:58 +02:00
Catherine Flores
71c54137ea Extract never-like into clippy_utils 2023-08-02 14:00:26 -05:00
Deadbeef
b07de24a58 Remove constness from TraitPredicate 2023-08-02 15:38:00 +00:00
Philipp Krones
b0e64a9c09 Merge commit '5436dba826191964ac1d0dab534b7eb6d4c878f6' into clippyup 2023-07-31 23:53:53 +02:00
Jason Newcomb
caf601434b Resolve type aliases in type_certainty 2023-07-30 03:26:32 -04:00
Jason Newcomb
4d80a2ed2e Rework redundant_closure
* Better track when a early-bound region appears when a late-bound region is required
* Don't lint when the closure gives explicit types.
2023-07-30 01:19:29 -04:00
Jason Newcomb
71cc39e1f2 Add debug assertions to implements_trait
Improve debug assertions for `make_projection`
2023-07-30 00:38:04 -04:00
Philipp Krones
3d60241841
Merge remote-tracking branch 'upstream/master' into rustup 2023-07-28 23:44:28 +02:00
León Orell Valerian Liehr
4c9d68e9b8 Make Clippy understand generic const items 2023-07-28 22:21:41 +02:00
Deadbeef
39fb315396 bless clippy 2023-07-27 17:56:25 +00:00
Deadbeef
be0b4d5a9b Remove constness from ParamEnv 2023-07-27 15:50:42 +00:00
Catherine
978b1daf99 New lint [filter_map_bool_then] 2023-07-25 17:42:36 -05:00
bors
2153c0fcc8 Auto merge of #11226 - GuillaumeGomez:needless-ref-mut-cfg, r=llogiq
Needless ref mut cfg

Fixes https://github.com/rust-lang/rust-clippy/issues/11185.

cc `@Centri3`

changelog: Emit note if function is behind a cfg for `NEEDLESS_PASS_BY_REF_MUT` lint.
2023-07-25 19:00:59 +00:00
bors
70c5798993 Auto merge of #11198 - y21:issue10938, r=Centri3
[`slow_vector_initialization`]: catch `Vec::new()` followed by `.resize(len, 0)`

Closes #10938

changelog: [`slow_vector_initialization`]: catch `Vec::new()` followed by `.resize(len, 0)`
2023-07-25 17:23:01 +00:00
y21
c0484b74f7 simplify looking for Vec::with_capacity exprs 2023-07-25 18:56:57 +02:00
Guillaume Gomez
1c9772c773 Move inherits_cfg function into clippy_utils 2023-07-25 18:43:58 +02:00
Michael Goulet
f20a174c4f Make everything builtin! 2023-07-25 16:08:58 +00:00
Oli Scherer
d94d85f3d8 Perform OpaqueCast field projection on HIR, too.
This is necessary for closure captures in 2021 edition, as they capture individual fields, not the full mentioned variables. So it may try to capture a field of an opaque (because the hidden type is known to be something with a field).
2023-07-24 15:19:26 +00:00
bors
58775046a9 Auto merge of #11214 - y21:issue11213, r=Jarcho
check that the types are equal in `SpanlessEq::eq_expr`

Fixes #11213

changelog: [`if_same_then_else`]: don't lint for integer literals of different types
2023-07-23 20:00:31 +00:00
bors
a4e64ff375 Auto merge of #11166 - Jarcho:expr_use, r=Centri3
Refactor some of  `dereference.rs` to util functions

I've seen a few lints that need to be able to tell if changing the type of an expression would be a vaild suggestion. This extracts part of how that's done from `explicit_auto_deref`.

changelog: None
2023-07-23 18:27:48 +00:00
y21
e975d05cde check that the types are equal in SpanlessEq::eq_expr 2023-07-23 15:51:11 +02:00
Jason Newcomb
55dd8a9717 Refactor dereference.rs
Extract getting an expression's use context and the context's defined
type as util functions.
2023-07-23 01:21:12 -04:00
Catherine
9cf1509b25 New lint absolute_paths 2023-07-21 17:26:58 -05:00
bors
ee8a429792 Auto merge of #11188 - Centri3:#11178, r=blyxyas
Allow `Self::cmp(self, other)` as a correct impl

Fixes #11178

Also no longer checks if the method name is *just* cmp, but the path. That was an oversight on my part ^^

r? `@xFrednet`
(and `@blyxyas` too!)

changelog: [`incorrect_partial_ord_impl_on_ord_type`]: Now allows non-method calls to `cmp` like `Self::cmp(self, other)`
2023-07-20 22:37:02 +00:00
Catherine
a4c367d0e9 Allow Self::cmp(self, other) as a correct impl 2023-07-20 16:17:24 -05:00
Thibaut Vandervelden
f743fec6b0 fix: false positive for option_env! in ifs
Clippy had a false positive for with `ifs_same_cond` when two
if-let expressions have an `option_env!` macro. The fix is similar to the
`env!` macro fix.

The following example had a clippy error:

```rust
if let Some(env1) = option_env!("ENV1") {
    // ...
} else if let Some(env2) = option_env!("ENV2") {
    // ...
}
```

See https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=01b85c61b56ddd900117fb247af04824

changelog: Fix [`ifs_same_cond`] false positive when using `option_env!` in if-let expressions.
2023-07-20 12:04:24 +02:00
lcnr
5a6c4d7d43 XSimplifiedType to SimplifiedType::X 2023-07-20 11:05:52 +02:00
bors
0b63e95dce Auto merge of #10949 - y21:issue8010, r=Alexendoo
[`manual_filter_map`]: lint on `matches` and pattern matching

Fixes #8010

Previously this lint only worked specifically for a very limited set of methods on the filter call (`.filter(|opt| opt.is_some())` and `.filter(|res| res.is_ok())`). This PR extends it to also recognize `matches!` in the `filter` and pattern matching with `if let` or `match` in the `map`.

Example:
```rs
enum Enum {
  A(i32),
  B,
}

let _ = [Enum::A(123), Enum::B].into_iter()
  .filter(|x| matches!(x, Enum::A(_)))
  .map(|x| if let Enum::A(s) = x { s } else { unreachable!() });
```
Now suggests:
```diff
-  .filter(|x| matches!(x, Enum::A(_))).map(if let Enum::A(s) = x { s } else { unreachable!() })
+  .filter_map(|x| match x { Enum::A(s) => Some(s), _ => None })
```

Adding this required a somewhat large change in code because it originally seemed to be specifically written with only method calls in the filter in mind, and `matches!` has different behavior in the map, so this new setup should make it possible to support more "generic" cases that need different handling for the filter and map calls.

changelog: [`manual_filter_map`]: lint on `matches` and pattern matching (and some internal refactoring)
2023-07-19 12:59:51 +00:00
Samuel Moelius
f583fd18e4 Fix unwrap_or_else_default false positive 2023-07-19 06:45:33 -04:00
Michael Goulet
d1e1dcb1fb Rename arg_iter to iter_instantiated 2023-07-17 21:04:12 +00:00
Philipp Krones
d6d530fd0b Merge commit 'd9c24d1b1ee61f276e550b967409c9f155eac4e3' into clippyup 2023-07-17 10:22:32 +02:00
Mahdi Dibaiee
fdb2e363d3 refactor(rustc_middle): Substs -> GenericArg 2023-07-14 13:27:35 +01:00
Philipp Krones
faa07d334a
Bump Clippy version -> 0.1.73 2023-07-14 13:36:23 +02:00
Philipp Krones
415fdb2d1a
Merge remote-tracking branch 'upstream/master' into rustup 2023-07-14 13:36:16 +02:00
Alex Macleod
2811effe34 Add imports_granularity = "Module" to rustfmt.toml 2023-07-13 12:44:57 +00:00
Samuel Moelius
3bf2138289 Fix #10535 2023-07-08 19:12:10 -04:00
Nilstrieb
b5ac726ed3 Rename adjustment::PointerCast and variants using it to PointerCoercion
It makes it sound like the `ExprKind` and `Rvalue` are supposed to represent all pointer related
casts, when in reality their just used to share a some enum variants. Make it clear there these
are only coercion to make it clear why only some pointer related "casts" are in the enum.
2023-07-07 18:17:16 +02:00
bors
8c70e522ad Auto merge of #113377 - BoxyUwU:move_ty_ctors_to_ty, r=compiler-errors
Move `TyCtxt::mk_x` to `Ty::new_x` where applicable

Part of rust-lang/compiler-team#616

turns out there's a lot of places we construct `Ty` this is a ridiculously huge PR :S

r? `@oli-obk`
2023-07-06 08:10:42 +00:00
bors
8aca068215 Auto merge of #113291 - oli-obk:pretty_print_mir_const, r=RalfJung
Specialize `try_destructure_mir_constant` for its sole user (pretty printing)

We can't remove the query, as we need to invoke it from rustc_middle, but can only implement it in mir interpretation/const eval.

r? `@RalfJung` for a first round.

While we could move all the logic into pretty printing, that would end up duplicating a bit of code with const eval, which doesn't seem great either.
2023-07-06 00:00:38 +00:00
Boxy
cbe468222a Move TyCtxt::mk_x to Ty::new_x where applicable 2023-07-05 20:27:07 +01:00
Alex Macleod
f945351170 Fix regex lints for regex 1.9.0 2023-07-05 18:29:43 +00:00
Oli Scherer
a4f99149fc Patch clippy 2023-07-05 16:16:03 +00:00
Boxy
406241832e Deal with fallout 2023-07-05 09:46:30 +01:00
bors
3f17c5c388 Auto merge of #10924 - est31:manual_let_else_question_mark, r=Centri3,flip1995,Manishearth
Don't lint manual_let_else in cases where ? would work

Don't lint `manual_let_else` where the question mark operator `?` would be sufficient, that is, mostly in cases like:

```Rust
let v = if let Some(v) = ex { v } else { return None };
```

Also, this PR emits the `question_mark` lint for `let...else` patterns that could be written with `?` (also, only `return None` like cases).

```
changelog: [`manual_let_else`]: don't lint in cases where question_mark already lints
changelog: [`question_mark`]: lint for `let Some(...) = ex else { return None };`
```

Fixes  #8755
2023-07-03 14:18:32 +00:00
est31
d80581c7d2 Move pat_and_expr_can_be_question_mark into clippy_utils 2023-07-03 09:42:54 +02:00
Philipp Krones
ba1ffec5b5 Fix valtree changes 2023-07-02 14:59:44 +02:00
Philipp Krones
cb3ecf7b79 Merge commit '37f4c1725d3fd7e9c3ffd8783246bc5589debc53' into clippyup 2023-07-02 14:59:02 +02:00
bors
1990b72e8a Auto merge of #11058 - Centri3:typos, r=xFrednet
Fix typos

Just a couple misc typos I found

changelog: none
2023-07-02 12:11:30 +00:00
Catherine
885a18207f Fix typos 2023-07-02 07:11:05 -05:00
Catherine
354172a18e New lint manual_try_fold 2023-07-01 12:36:02 -05:00
bors
c7bf05c1a4 Auto merge of #11020 - Centri3:tuple_array_conversion, r=llogiq
New lint [`tuple_array_conversions`]

Closes #10748

PS, the implementation is a bit ugly 😅 ~~I will likely refactor soon enough :)~~ Done :D

changelog: New lint [`tuple_array_conversions`]
2023-07-01 15:27:35 +00:00
bors
2c40b99d08 Auto merge of #11048 - flip1995:rustup, r=flip1995
Rustup

r? `@ghost`

changelog: none
2023-06-30 14:09:53 +00:00
Philipp Krones
8010c3462d
Merge remote-tracking branch 'upstream/master' into rustup 2023-06-30 16:09:06 +02:00
y21
648d1ae8e0 lint on matches and pattern matching 2023-06-30 14:54:49 +02:00
bors
3d4c536e87 Auto merge of #11013 - Centri3:redundant_rest_pattern, r=giraffate
New lint [`redundant_at_rest_pattern`]

Closes #11011

It's always a great feeling when a new lint triggers on clippy itself 😄

changelog: New lint [`redundant_at_rest_pattern`]
2023-06-29 23:54:35 +00:00
Catherine
b1acbde618 Add msrv check and make test pass 2023-06-29 06:46:28 -05:00
bors
9020937bbe Auto merge of #11030 - darklyspaced:master, r=Centri3,xFrednet
suggests `is_some_and` over `map().unwrap`

changelog: Enhancement: [`option_map_unwrap_or`] now considers the [`msrv`] config when creating the suggestion.

 * modified option_map_unwrap_or lint to recognise when an `Option<T>` is mapped to an `Option<bool>` with false being used when `None` is detected; suggests the use of `is_some_and` instead
 * msrv is set to 1.70.0 for this lint; when `is_some_and` was stabilised

fixes #9125
2023-06-29 09:54:51 +00:00
y21
b713cd5945 move is_in_trait_method to utils and rename 2023-06-28 11:35:10 +02:00
Catherine
9a8347ded5 New lint [redundant_rest_pattern] 2023-06-27 06:06:56 -05:00
darklyspaced
a693cbc1bc
changed msrv name for consistency & changed nested if for style 2023-06-27 11:29:02 +08:00
darklyspaced
c60222dc12
changed the msrv to 1.70 to suggest is_some_and
if the msrv is not >= 1.70 then the `map_or` is suggested instead of `is_some_and` (even when `unwrap_or` returns false)
2023-06-27 11:29:02 +08:00
Michael Goulet
716c552632 Migrate predicates_of and caller_bounds to Clause 2023-06-26 23:12:03 +00:00
bors
15ed281699 Auto merge of #10426 - oli-obk:ui_test, r=Manishearth
Port clippy away from compiletest to ui_test

Reasons to do this:

* runs completely on stable Rust
* is easier to extend with new features
* has its own dogfood test suite, so changes can be tested in [the `ui_test` repo](https://github.com/oli-obk/ui_test)
* supports dependencies from crates.io without having to manually fiddle with command line flags
* supports `ui-cargo`, `ui`, `ui-toml` out of the box, no need to find and run the tests ourselves

One thing that is a big difference to `compiletest` is that if a test emits *any* error, you need to mark all of them with `//~ ERROR:` annotations. Since many clippy tests did not have annotations, I changed many lints to be `warn` in their test so that only the `stderr` output is tested.

TODO:

* [ ] check that this still works as a subtree in the rustc repo

changelog: none
<!-- changelog_checked -->

Note: at present the latest changes needed for clippy are only available as a git dependency, but I expect to publish a new crates.io version soon
2023-06-26 17:32:51 +00:00
Oli Scherer
514b6d04bb Port clippy away from compiletest to ui_test 2023-06-26 14:13:07 +00:00
bors
a9e0bbb931 Auto merge of #112887 - WaffleLapkin:become_unuwuable_in_hir, r=compiler-errors,Nilstrieb
`hir`: Add `Become` expression kind (explicit tail calls experiment)

This adds `hir::ExprKind::Become` alongside ast lowering. During hir-thir lowering we currently lower `become` as `return`, so that we can partially test `become` without ICEing.

cc `@scottmcm`
r? `@Nilstrieb`
2023-06-26 13:51:04 +00:00
Maybe Waffle
555bd985d2 Support hir::ExprKind::Become in clippy 2023-06-26 08:56:32 +00:00
bors
407bfd483a Auto merge of #11005 - Centri3:never_loop, r=giraffate
Check if `if` conditions always evaluate to true in `never_loop`

This fixes the example provided in #11004, but it shouldn't be closed as this is still an issue on like
```rust
let x = true;
if x { /* etc */ }`
```
This also makes `clippy_utils::consts::constant` handle `ConstBlock` and `DropTemps`.

changelog: [`never_loop`]: Check if `if` conditions always evaluate to true
2023-06-26 00:42:38 +00:00
Michael Goulet
533a819115 Migrate item_bounds to ty::Clause 2023-06-22 18:34:23 +00:00
y21
33b6d0d206 rename MSRV alias, add MSRV to lint doc 2023-06-22 17:19:43 +02:00
Catherine
6a1084c26f Check if if conditions always evaluate to true in never_loop 2023-06-22 04:31:05 -05:00
bors
a2b99d8174 Auto merge of #112877 - Nilstrieb:rollup-5g5hegl, r=Nilstrieb
Rollup of 6 pull requests

Successful merges:

 - #112632 (Implement PartialOrd for `Vec`s over different allocators)
 - #112759 (Make closure_saved_names_of_captured_variables a query. )
 - #112772 (Add a fully fledged `Clause` type, rename old `Clause` to `ClauseKind`)
 - #112790 (Syntactically accept `become` expressions (explicit tail calls experiment))
 - #112830 (More codegen cleanups)
 - #112844 (Add retag in MIR transform: `Adt` for `Unique` may contain a reference)

r? `@ghost`
`@rustbot` modify labels: rollup
2023-06-21 08:00:23 +00:00
Nilstrieb
0c9482650c Rollup merge of #112790 - WaffleLapkin:syntactically, r=Nilstrieb
Syntactically accept `become` expressions (explicit tail calls experiment)

This adds `ast::ExprKind::Become`, implements parsing and properly gates the feature.

cc `@scottmcm`
2023-06-21 07:37:02 +02:00
Nilstrieb
6d4c2573e7 Rollup merge of #112772 - compiler-errors:clauses-1, r=lcnr
Add a fully fledged `Clause` type, rename old `Clause` to `ClauseKind`

Does two basic things before I put up a more delicate set of PRs (along the lines of #112714, but hopefully much cleaner) that migrate existing usages of `ty::Predicate` to `ty::Clause` (`predicates_of`/`item_bounds`/`ParamEnv::caller_bounds`).

1. Rename `Clause` to `ClauseKind`, so it's parallel with `PredicateKind`.
2. Add a new `Clause` type which is parallel to `Predicate`.
    * This type exposes `Clause::kind(self) -> Binder<'tcx, ClauseKind<'tcx>>` which is parallel to `Predicate::kind` 😸

The new `Clause` type essentially acts as a newtype wrapper around `Predicate` that asserts that it is specifically a `PredicateKind::Clause`. Turns out from experimentation[^1] that this is not negative performance-wise, which is wonderful, since this a much simpler design than something that requires encoding the discriminant into the alignment bits of a predicate kind, or something else like that...

r? ``@lcnr`` or ``@oli-obk``

[^1]: https://github.com/rust-lang/rust/pull/112714#issuecomment-1595653910
2023-06-21 07:37:01 +02:00
bors
70c2d0cfe5 Auto merge of #106450 - albertlarsan68:fix-arc-ptr-eq, r=Amanieu
Make `{Arc,Rc,Weak}::ptr_eq` ignore pointer metadata

FCP completed in https://github.com/rust-lang/rust/issues/103763#issuecomment-1362267967

Closes #103763
2023-06-21 05:13:39 +00:00
y21
87c28b9463 [type_repetition_in_bounds]: respect msrv for combining maybe bounds 2023-06-20 17:24:46 +02:00
bors
1919dff4ee Auto merge of #10989 - ericmarkmartin:use-placeref-abstraction, r=Manishearth
Use placeref abstraction

rust-lang/rust#80647 suggests refactoring certain patterns with MIR places to use higher-level abstractions provided by the [`Place`](https://doc.rust-lang.org/stable/nightly-rustc/rustc_middle/mir/struct.Place.html)/[`PlaceRef`](https://doc.rust-lang.org/stable/nightly-rustc/rustc_middle/mir/struct.PlaceRef.html). While working on that issue, I found a couple candidates for such refactoring in clippy.

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

changelog: none
2023-06-20 04:43:38 +00:00
Michael Goulet
9a65f469e0 Rollup merge of #112232 - fee1-dead-contrib:match-eq-const-msg, r=b-naber
Better error for non const `PartialEq` call generated by `match`

Resolves #90237
2023-06-19 17:53:33 -07:00
bors
c8c03ea606 Auto merge of #10793 - c410-f3r:bbbbbbbbbbb, r=xFrednet
[`arithmetic_side_effects`] Fix #10792

Fix #10792

```
changelog: [`arithmetic_side_effects`]: Retrieve field values of structures that are in constant environments
```
2023-06-19 19:51:49 +00:00
Michael Goulet
b2c7ce8908 s/Clause/ClauseKind 2023-06-19 14:57:42 +00:00
Maybe Waffle
efec6d61b5 Support ast::ExprKind::Become in clippy 2023-06-19 12:54:34 +00:00
Eric Mark Martin
66590ba41b use PlaceRef abstractions 2023-06-19 03:44:04 -04:00
Deadbeef
45a685e3a9 Better error for non const PartialEq call generated by match 2023-06-18 05:24:38 +00:00
Michael Goulet
f28ec85530 Move ConstEvaluatable to Clause 2023-06-17 21:27:13 +00:00
Michael Goulet
bc41b2ca5c Move WF goal to clause 2023-06-17 21:20:20 +00:00
Alex Macleod
26e78e72bc Fix find_format_arg_expr when incremental compilation is enabled 2023-06-17 20:55:30 +00:00
Caio
dbe4057237 Dogfood 2023-06-17 17:16:01 -03:00
Caio
0e1caa765e Fix #10792 2023-06-17 17:03:31 -03:00
bors
eefc2a0ac4 Auto merge of #10891 - Centri3:missing_const_for_fn, r=Jarcho
[`missing_const_for_fn`]: Ensure dropped locals are `~const Destruct`

this will check every local for `TerminatorKind::Drop` to ensure they can be evaluated at compile time, not sure if this is the best way to do this but MIR is confusing and it works so...

fixes #10617

changelog: [`missing_const_for_fn`]: Ensure dropped locals are `~const Destruct`
2023-06-13 18:37:27 +00:00
Centri3
9bc5a146fd remove in_move 2023-06-13 13:19:10 -05:00
Centri3
52cfc997af Add lint single_letter_idents 2023-06-12 03:21:43 -05:00
bors
903fe3b9f2 Auto merge of #10894 - Centri3:type_repetition_in_bounds, r=blyxyas,xFrednet
[`type_repetition_in_bounds`]: Don't lint on derived code

fixes #10504.

changelog: [`type_repetition_in_bounds`]: Don't lint on derived code
2023-06-12 07:18:39 +00:00
bors
841f2199e0 Auto merge of #10416 - Jarcho:explicit_iter_loop_ext, r=Manishearth
Extend `explicit_iter_loop` and `explicit_into_iter_loop`

fixes #1518

Some included cleanups
* Split `for_loop` test into different files for each lint (partially).
* Move handling of some `into_iter` cases from `explicit_into_iter`.

---

changelog: Enhancement: [`explicit_iter_loop`]: Now also handles types that implement `IntoIterator`.
[#10416](https://github.com/rust-lang/rust-clippy/pull/10416)

changelog: Sugg: [`explicit_into_iter_loop`]: The suggestion now works on mutable references.
[#10416](https://github.com/rust-lang/rust-clippy/pull/10416)
<!-- changelog_checked -->
2023-06-12 05:30:32 +00:00
Centri3
4191de3303 Update check_proc_macro.rs 2023-06-11 14:52:26 -05:00
Centri3
a495fa06de remove unnecessary checks 2023-06-09 21:47:09 -05:00
Jason Newcomb
949712c90a Reborrow mutable references in explicit_iter_loop 2023-06-09 21:40:03 -04:00
Jason Newcomb
b6fa4d43d3 Extend explicit_iter_loop to all types 2023-06-09 19:24:55 -04:00
y21
85002b09a1 handle exponent without digits 2023-06-09 05:21:24 +02:00
Centri3
5692677b3b cleanup spaghetti code 2023-06-08 02:41:51 -05:00
Centri3
0e233492d3 use trait solver instead; created spaghetti code 2023-06-07 21:43:28 -05:00
Centri3
a434a7715d impl WithSearchPat for Ty 2023-06-06 22:16:02 -05:00
Centri3
e97f190a9d ty_search_pat 2023-06-06 18:05:15 -05:00
y21
e70dd55fd6 account for autoderef in eager_or_lazy 2023-06-06 00:18:07 +02:00
bors
b033883e2b Auto merge of #10864 - y21:issue10437, r=blyxyas,xFrednet
[`unnecessary_lazy_eval`]: don't lint on types with deref impl

Fixes #10437.
This PR changes clippy's util module `eager_or_lazy` to also consider deref expressions whose type has a non-builtin deref impl and not suggest replacing it as that might have observable side effects.
A prominent example might be the `lazy_static` macro, which creates a newtype with a `Deref` impl that you need to go through to get access to the inner value. Going from lazy to eager can make a difference there.

changelog: [`unnecessary_lazy_eval`]: don't lint on types with non-builtin deref impl
2023-06-05 11:21:45 +00:00
Centri3
e24fc9af23 Fix missing_const_for_fn not checking ~const Destruct 2023-06-04 21:50:51 -05:00
bors
1841661c80 Auto merge of #10869 - Centri3:allow_attributes, r=Manishearth
[`allow_attributes`, `allow_attributes_without_reason`]: Ignore attributes from procedural macros

I use `lint_reasons` and `clap`, which is a bit overzealous when it comes to preventing warnings in its macros; it uses a ton of allow attributes on everything to, as ironic as it is, silence warnings. These two now ignore anything from procedural macros.

PS, I think `allow_attributes.rs` should be merged with `attrs.rs` in the future.

fixes #10377

changelog: [`allow_attributes`, `allow_attributes_without_reason`]: Ignore attributes from procedural macros
2023-06-05 02:02:19 +00:00
Centri3
05bfcbd911 remove tuple 2023-06-03 14:38:16 -05:00
Philipp Krones
e6dc0efc00 Merge commit '30448e8cf98d4754350db0c959644564f317bc0f' into clippyup 2023-06-02 11:41:57 +02:00
Philipp Krones
84f8ce801e
Bump Clippy version -> 0.1.72 2023-06-02 10:18:34 +02:00
Philipp Krones
aa3247c891
Merge remote-tracking branch 'upstream/master' into rustup 2023-06-02 10:17:55 +02:00
Centri3
497f37793e Fix attr_search_pat for #[cfg_attr] 2023-06-01 21:26:41 -05:00
Centri3
ab70553a38 foiled again (forgot to run cargo test) 2023-06-01 20:32:08 -05:00
Centri3
0086b6ab0a don't lint allow_attributes on attributes from proc macros 2023-06-01 20:24:41 -05:00
y21
a239c8b52b [unnecessary_lazy_eval]: don't lint on types with deref impl 2023-06-02 00:06:34 +02:00
y21
f74ec6b1b8 new lint: missing_field_in_debug
move some strings into consts, more tests

s/missing_field_in_debug/missing_fields_in_debug

dont trigger in macro expansions

make dogfood tests happy

minor cleanups

replace HashSet with FxHashSet

replace match_def_path with match_type

if_chain -> let chains, fix markdown, allow newtype pattern

fmt

consider string literal in `.field()` calls as used

don't intern defined symbol, remove mentions of 'debug_tuple'

special-case PD, account for field access through `Deref`
2023-05-31 23:52:02 +02:00
lcnr
739530a03c EarlyBinder::new -> EarlyBinder::bind 2023-05-29 13:46:10 +02:00
Nicholas Nethercote
53f1e6b7ef Use Cow in {D,Subd}iagnosticMessage.
Each of `{D,Subd}iagnosticMessage::{Str,Eager}` has a comment:
```
// FIXME(davidtwco): can a `Cow<'static, str>` be used here?
```
This commit answers that question in the affirmative. It's not the most
compelling change ever, but it might be worth merging.

This requires changing the `impl<'a> From<&'a str>` impls to `impl
From<&'static str>`, which involves a bunch of knock-on changes that
require/result in call sites being a little more precise about exactly
what kind of string they use to create errors, and not just `&str`. This
will result in fewer unnecessary allocations, though this will not have
any notable perf effects given that these are error paths.

Note that I was lazy within Clippy, using `to_string` in a few places to
preserve the existing string imprecision. I could have used `impl
Into<{D,Subd}iagnosticMessage>` in various places as is done in the
compiler, but that would have required changes to *many* call sites
(mostly changing `&format("...")` to `format!("...")`) which didn't seem
worthwhile.
2023-05-29 09:23:43 +10:00
Kyle Matsuda
cfcb7fc859 Replace EarlyBinder(x) with EarlyBinder::new(x) 2023-05-28 10:44:50 -06:00
bors
f1fd4673bc Auto merge of #10813 - y21:issue10755, r=xFrednet
[`default_constructed_unit_structs`]: do not lint on type alias paths

Fixes #10755.

Type aliases cannot be used as a constructor, so this lint should not trigger in those cases.
I also changed `clippy_utils::is_ty_alias` to also consider associated types since [they kinda are type aliases too](48ec50ae39/compiler/rustc_resolve/src/late/diagnostics.rs (L1520)).

changelog: [`default_constructed_unit_structs`]: do not lint on type alias paths
2023-05-26 15:20:21 +00:00
bors
a0fd17d3f0 Auto merge of #10779 - Centri3:ptr_cast_constness, r=llogiq
Add new lint `ptr_cast_constness`

This adds a new lint which functions as the opposite side of the coin to `ptr_as_ptr`. Rather than linting only as casts that don't change constness, this lints only constness; suggesting to use `pointer::cast_const` or `pointer::cast_mut` instead.

changelog: new lint [`ptr_cast_constness`]
2023-05-23 21:40:50 +00:00
Yuri Astrakhan
68df61ebd9 remove todo 2023-05-22 20:06:58 -04:00
y21
8c82486ea9 [default_constructed_unit_structs]: do not lint type aliases 2023-05-22 16:13:23 +02:00
Yuri Astrakhan
e926148188 Fix unsafe blocks 2023-05-22 04:07:17 -04:00
Philipp Krones
b76b0aeb63 Merge commit '435a8ad86c7a33bd7ffb91c59039943408d3b6aa' into clippyup 2023-05-20 15:39:26 +02:00
Philipp Krones
96b32b1cb8
Merge remote-tracking branch 'upstream/master' into rustup 2023-05-20 15:32:20 +02:00
Jason Newcomb
58132cb3b0 Improve SpanlessEq
* Don't consider expansions of different macros to be the same, even if they expand to the same tokens
* Don't consider `cfg!` expansions to be equal if they check different configs.
2023-05-18 16:42:13 -04:00
Jason Newcomb
5351170744 Slightly refactor constant evaluation and add detection for empty macro expansion and cfged statements. 2023-05-18 15:43:33 -04:00
Jason Newcomb
0b3c2ed811 Search for inactive cfg attributes and empty macro expansion through
the entire block
2023-05-18 15:43:23 -04:00
Centri3
4ff1cd365d add description and rename msrv tests 2023-05-16 11:20:00 -05:00
Centri3
a36d9a7820 move is_ty_alias to clippy_utils 2023-05-14 12:39:08 -05:00
bors
5889ecd14f Auto merge of #111255 - flip1995:clippyup, r=Manishearth
Update Clippy

r? `@Manishearth`
2023-05-05 21:50:14 +00:00
Philipp Krones
7e9abb311d Merge commit '371120bdbf58a331db5dcfb2d9cddc040f486de8' into clippyup 2023-05-05 17:45:49 +02:00
Philipp Krones
88c7632659
Merge remote-tracking branch 'upstream/master' into rustup 2023-05-05 17:29:35 +02:00
Dylan DPC
a48c7350ab Rollup merge of #108801 - fee1-dead-contrib:c-str, r=compiler-errors
Implement RFC 3348, `c"foo"` literals

RFC: https://github.com/rust-lang/rfcs/pull/3348
Tracking issue: #105723
2023-05-05 18:40:33 +05:30
Samuel Moelius
7e24ff33e4
Update macros.rs 2023-05-02 19:02:06 -04:00
Nicholas Nethercote
431cce1540 Restrict From<S> for {D,Subd}iagnosticMessage.
Currently a `{D,Subd}iagnosticMessage` can be created from any type that
impls `Into<String>`. That includes `&str`, `String`, and `Cow<'static,
str>`, which are reasonable. It also includes `&String`, which is pretty
weird, and results in many places making unnecessary allocations for
patterns like this:
```
self.fatal(&format!(...))
```
This creates a string with `format!`, takes a reference, passes the
reference to `fatal`, which does an `into()`, which clones the
reference, doing a second allocation. Two allocations for a single
string, bleh.

This commit changes the `From` impls so that you can only create a
`{D,Subd}iagnosticMessage` from `&str`, `String`, or `Cow<'static,
str>`. This requires changing all the places that currently create one
from a `&String`. Most of these are of the `&format!(...)` form
described above; each one removes an unnecessary static `&`, plus an
allocation when executed. There are also a few places where the existing
use of `&String` was more reasonable; these now just use `clone()` at
the call site.

As well as making the code nicer and more efficient, this is a step
towards possibly using `Cow<'static, str>` in
`{D,Subd}iagnosticMessage::{Str,Eager}`. That would require changing
the `From<&'a str>` impls to `From<&'static str>`, which is doable, but
I'm not yet sure if it's worthwhile.
2023-05-03 08:44:39 +10:00
Deadbeef
37127b8d70 initial step towards implementing C string literals 2023-05-02 10:30:09 +00:00
yukang
d4baabe902 clean up Colon from clippy 2023-05-01 16:15:17 +08:00
y21
1d08325293 move lint to loops, emit proper suggestion, more tests 2023-04-29 18:59:07 +02:00
y21
bb58083ce5 new lint: while_pop_unwrap 2023-04-29 18:59:06 +02:00
Michael Goulet
83504fa763 Make clippy happy 2023-04-27 17:18:12 +00:00
Boxy
0339d4e982 rename needs_infer to has_infer 2023-04-27 08:35:19 +01:00
Albert Larsan
9a61550e78 Make {Arc,Rc,Weak}::ptr_eq ignore pointer metadata 2023-04-26 15:27:32 +00:00
Matthias Krüger
331c5471d7 Rollup merge of #110556 - kylematsuda:earlybinder-explicit-item-bounds, r=compiler-errors
Switch to `EarlyBinder` for `explicit_item_bounds`

Part of the work to finish https://github.com/rust-lang/rust/issues/105779.

This PR adds `EarlyBinder` to the return type of the `explicit_item_bounds` query and removes `bound_explicit_item_bounds`.

r? `@compiler-errors` (hope it's okay to request you, since you reviewed #110299 and #110498 😃)
2023-04-25 21:06:32 +02:00
bors
96f8471d81 Auto merge of #10649 - jsoref:spelling, r=Jarcho
Spelling

This PR corrects misspellings identified by the [check-spelling action](https://github.com/marketplace/actions/check-spelling).

The misspellings have been reported at https://github.com/jsoref/rust-clippy/actions/runs/4710771873#summary-12776860721

The action reports that the changes in this PR would make it happy: https://github.com/jsoref/rust-clippy/actions/runs/4710771874#summary-12776860722

changelog: none
2023-04-23 22:30:06 +00:00
Josh Soref
6f7801f810 Rewrite search_same description 2023-04-23 10:53:06 -04:00
Josh Soref
d2061faf9e Spelling
* applying
* binding
* complex
* constituent
* demonstrate
* desugaring
* exact
* expression
* for
* functionalities
* github
* implementation
* infers
* multiple conflicting traits
* mutable
* necessarily
* nightly
* nonexistent
* optional
* parameter
* reassignments
* resources
* substitution
* suggestion
* that
* that array is
* using the

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2023-04-23 10:52:27 -04:00
bors
496c11005c Auto merge of #10679 - y21:better-const-ctx-check, r=Jarcho
use `is_inside_const_context` for `in_constant` util fn

Fixes #10452.

This PR improves the `in_constant` util function to detect more cases of const contexts. Previously this function would not detect cases like expressions in array length position or expression in an inline const block `const { .. }`.

changelog: [`bool_to_int_with_if`]: recognize array length operand as being in a const context and don't suggest `usize::from` there
2023-04-23 13:33:51 +00:00
Philipp Krones
0add5bb0f1
Bump Clippy version -> 0.1.71 2023-04-23 03:39:19 -07:00
Philipp Krones
583c97e9bb
Merge remote-tracking branch 'upstream/master' into rustup 2023-04-23 03:39:03 -07:00
bors
86d8f1268a Auto merge of #106934 - DrMeepster:offset_of, r=WaffleLapkin
Add offset_of! macro (RFC 3308)

Implements https://github.com/rust-lang/rfcs/pull/3308 (tracking issue #106655) by adding the built in macro `core::mem::offset_of`. Two of the future possibilities are also implemented:

* Nested field accesses (without array indexing)
* DST support (for `Sized` fields)

I wrote this a few months ago, before the RFC merged. Now that it's merged, I decided to rebase and finish it.

cc `@thomcc` (RFC author)
2023-04-22 00:10:44 +00:00
DrMeepster
68c4776b46 offset_of 2023-04-21 02:14:02 -07:00
y21
654d12ff89 use is_inside_const_context query for in_constant 2023-04-20 22:43:59 +02:00
Kyle Matsuda
55d8146334 add subst_identity_iter and subst_identity_iter_copied methods on EarlyBinder; use this to simplify some EarlyBinder noise around explicit_item_bounds calls 2023-04-20 12:36:50 -06:00
Kyle Matsuda
097309c10f add EarlyBinder to output of explicit_item_bounds; replace bound_explicit_item_bounds usages; remove bound_explicit_item_bounds query 2023-04-20 12:36:50 -06:00
Kyle Matsuda
afa28e6304 change usages of explicit_item_bounds to bound_explicit_item_bounds 2023-04-20 12:36:50 -06:00
Camille GILLOT
8ead58c67b Remove WithOptconstParam. 2023-04-20 17:48:32 +00:00
Maybe Waffle
2ebfbc5753 Remove very useless as_substs usage from clippy 2023-04-18 17:39:08 +00:00
Philipp Krones
6b95029f17 Merge commit '83e42a2337dadac915c956d125f1d69132f36425' into clippyup 2023-04-11 15:31:08 +02:00
bors
d048c1130f Auto merge of #110031 - compiler-errors:generic-elaboration, r=b-naber
Make elaboration generic over input

Combines all the `elaborate_*` family of functions into just one, which is an iterator over the same type that you pass in (e.g. elaborating `Predicate` gives `Predicate`s, elaborating `Obligation`s gives `Obligation`s, etc.)
2023-04-09 00:18:10 +00:00
Michael Goulet
0963a66ab3 Make elaborator generic 2023-04-06 23:30:22 +00:00
Philipp Krones
04c387efe7
Merge remote-tracking branch 'upstream/master' into rustup 2023-04-06 12:32:32 +02:00
Gary Guo
293c1a1a6a Fix tools 2023-04-06 09:34:16 +01:00
Gary Guo
f5ac844296 Refactor unwind from Option to a new enum 2023-04-06 09:34:16 +01:00
Oli Scherer
e9c7fb10b9 Rename ast::Static to ast::StaticItem to match ast::ConstItem 2023-04-04 15:34:40 +00:00
Oli Scherer
e610ddfa5e box a bunch of large types 2023-04-04 13:58:50 +00:00
Oli Scherer
ff7636db6a Split out ast::ItemKind::Const into its own struct 2023-04-04 09:44:50 +00:00
Oli Scherer
929696d754 rust-analyzer guided tuple field to named field 2023-04-04 09:44:50 +00:00
Oli Scherer
a6beddcc5a rust-analyzer guided enum variant structification 2023-04-04 09:44:45 +00:00
bors
6a6a262f7b Auto merge of #109010 - compiler-errors:rtn, r=eholk
Initial support for return type notation (RTN)

See: https://smallcultfollowing.com/babysteps/blog/2023/02/13/return-type-notation-send-bounds-part-2/

1. Only supports `T: Trait<method(): Send>` style bounds, not `<T as Trait>::method(): Send`. Checking validity and injecting an implicit binder for all of the late-bound method generics is harder to do for the latter.
    * I'd add this in a follow-up.
3. ~Doesn't support RTN in general type position, i.e. no `let x: <T as Trait>::method() = ...`~
    * I don't think we actually want this.
5. Doesn't add syntax for "eliding" the function args -- i.e. for now, we write `method(): Send` instead of `method(..): Send`.
    * May be a hazard if we try to add it in the future. I'll probably add it in a follow-up later, with a structured suggestion to change `method()` to `method(..)` once we add it.
7. ~I'm not in love with the feature gate name 😺~
    * I renamed it to `return_type_notation` ✔️

Follow-up PRs will probably add support for `where T::method(): Send` bounds. I'm not sure if we ever want to support return-type-notation in arbitrary type positions. I may also make the bounds require `..` in the args list later.

r? `@ghost`
2023-03-31 18:04:12 +00:00
Samuel "Sam" Tardieu
6601d85c22 Flag bufreader.lines().filter_map(Result::ok) as suspicious 2023-03-31 14:43:30 +02:00
Trevor Gross
4cf5bdc60c Stabilize a portion of 'once_cell'
Move items not part of this stabilization to 'lazy_cell' or 'once_cell_try'
2023-03-29 18:04:44 -04:00
bors
c5011e9d42 Auto merge of #10553 - Nilstrieb:better-uninit, r=Alexendoo
In uninit checking, add fallback for polymorphic types

After #10520, we always assumed that polymorphic types do not allow to be left uninitialized. But we can do better, by peeking into polymorphic types and adding a few special cases for going through tuples, arrays (because the length may be polymorphic) and blanket allowing all unions (like MaybeUninit).

fixes #10551

changelog: [uninit_vec]: fix false positive for polymorphic types
changelog: [uninit_assumed_init]: fix false positive for polymorphic types
2023-03-29 18:26:35 +00:00
Nilstrieb
51b4d2a1e8 In uninit checking, add fallback for polymorphic types 2023-03-29 19:46:44 +02:00
Alex Macleod
6589d79492 Replace remaining usage of FormatArgsExpn 2023-03-28 21:28:57 +00:00
Alex Macleod
3259b48568 Migrate format_args.rs to rustc_ast::FormatArgs
No longer lints empty precisions `{:.}` as the spans aren't available
2023-03-28 12:22:22 +00:00
Michael Goulet
fc6262fa0c Add (..) syntax for RTN 2023-03-28 01:14:28 +00:00
Guillaume Gomez
538e8bdcc8 Rollup merge of #109354 - Swatinem:rm-closureid, r=compiler-errors
Remove the `NodeId` of `ast::ExprKind::Async`

This is a followup to https://github.com/rust-lang/rust/pull/104833#pullrequestreview-1314537416.

In my original attempt, I was using `LoweringContext::expr`, which was not correct as it creates a fresh `DefId`.
It now uses the correct `DefId` for the wrapping `Expr`, and also makes forwarding `#[track_caller]` attributes more explicit.
2023-03-27 18:56:19 +02:00
Michael Goulet
db4e4afce8 Don't elaborate non-obligations into obligations 2023-03-26 20:33:54 +00:00
bluthej
2493be2196 Improve is_range_full implementation
Make this function work with signed integer types by extracting the
underlying type and finding the min and max values.

Change the signature to make it more consistent:
- The range is now given as an `Expr` in order to extract the type
- The container's path is now passed, and only as an `Option` so that
  the function can be called in the general case without a container
2023-03-26 19:12:36 +02:00
bluthej
1d168b31c3
Merge branch 'rust-lang:master' into clear-with-drain 2023-03-26 19:11:38 +02:00
Philipp Krones
8df896c076 Merge commit 'd5e2a7aca55ed49fc943b7a07a8eba05ab5a0079' into clippyup 2023-03-24 14:26:19 +01:00
Philipp Krones
62cba5d971
Merge remote-tracking branch 'upstream/master' into rustup 2023-03-24 13:36:09 +01:00
bors
58eb9964cc Auto merge of #108442 - scottmcm:mir-transmute, r=oli-obk
Add `CastKind::Transmute` to MIR

~~Nothing actually produces it in this commit, so I don't know how to test it, but it also means it shouldn't be possible for it to break anything.~~

Includes lowering `transmute` calls to it, so it's used.

Zulip Conversation: <https://rust-lang.zulipchat.com/#narrow/stream/189540-t-compiler.2Fwg-mir-opt/topic/Good.20first.20isssue/near/321849610>
2023-03-23 18:43:04 +00:00
bors
f34590478b Auto merge of #109517 - matthiaskrgr:rollup-m3orqzd, r=matthiaskrgr
Rollup of 7 pull requests

Successful merges:

 - #108541 (Suppress `opaque_hidden_inferred_bound` for nested RPITs)
 - #109137 (resolve: Querify most cstore access methods (subset 2))
 - #109380 (add `known-bug` test for unsoundness issue)
 - #109462 (Make alias-eq have a relation direction (and rename it to alias-relate))
 - #109475 (Simpler checked shifts in MIR building)
 - #109504 (Stabilize `arc_into_inner` and `rc_into_inner`.)
 - #109506 (make param bound vars visibly bound vars with -Zverbose)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2023-03-23 12:35:05 +00:00
Michael Goulet
b506eb5338 Rename AliasEq -> AliasRelate 2023-03-23 05:56:40 +00:00
Scott McMurray
8bdd54e8c6 Add CastKind::Transmute to MIR
Updates `interpret`, `codegen_ssa`, and `codegen_cranelift` to consume the new cast instead of the intrinsic.

Includes `CastTransmute` for custom MIR building, to be able to test the extra UB.
2023-03-22 15:15:41 -07:00
bluthej
85d428101d Pull is_full_range method from iter_with_drain
Rename method to `is_range_full` because the type is actually
`RangeFull`.

Method moved to `clippy_utils` for reuse in `clear_with_drain`.
2023-03-22 11:01:51 +01:00
Vadim Petrochenkov
cae7b87711 rustc: Remove unused Session argument from some attribute functions 2023-03-22 13:55:55 +04:00
Nilstrieb
84b6049eb9 Use uninit checking from rustc
rustc has proper heuristics for actually checking whether a type allows
being left uninitialized (by asking CTFE). We can now use this for our
helper instead of rolling our own bad version with false positives.
2023-03-21 18:28:06 +01:00
Arpad Borsos
1e17a443b3 Remove the NodeId of ast::ExprKind::Async 2023-03-19 19:01:31 +01:00
Matthias Krüger
60fe49c54c Rollup merge of #108958 - clubby789:unbox-the-hir, r=compiler-errors
Remove box expressions from HIR

After #108516, `#[rustc_box]` is used at HIR->THIR lowering and this is no longer emitted, so it can be removed.

This is based on top of #108471 to help with conflicts, so 43490488ccacd1a822e9c621f5ed6fca99959a0b is the only relevant commit (sorry for all the duplicated pings!)

````@rustbot```` label +S-blocked
2023-03-17 08:42:37 +01:00
Samuel "Sam" Tardieu
ffabdab8cf New lint to detect &std::path::MAIN_SEPARATOR.to_string() 2023-03-16 21:42:04 +01:00
Mara Bos
d1b28f3a5f Fix clippy. 2023-03-16 12:08:07 +01:00
clubby789
f2eddc5924 Remove box expressions from HIR 2023-03-14 17:18:26 +00:00
bors
491f63214a Auto merge of #104833 - Swatinem:async-identity-future, r=compiler-errors
Remove `identity_future` indirection

This was previously needed because the indirection used to hide some unexplained lifetime errors, which it turned out were related to the `min_choice` algorithm.

Removing the indirection also solves a couple of cycle errors, large moves and makes async blocks support the `#[track_caller]`annotation.

Fixes https://github.com/rust-lang/rust/issues/104826.
2023-03-14 10:12:58 +00:00
J-ZhengLi
f4ccb06d69 extract is_interior_mutable_type from [mut_key] to clippy_utils::ty;
fix configuration of [`ifs_same_cond`];

add some style improvement for [`ifs_same_cond`];
2023-03-13 20:17:30 +08:00
clubby789
15f24234c8 Remove box_syntax from AST and use in tools 2023-03-12 13:19:46 +00:00
bors
f19db28361 Auto merge of #10434 - Jarcho:snip_context, r=dswij
Remove `snippet_with_macro_callsite`

`snippet_with_context` is used instead to support nested macro calls.

changelog: None
2023-03-11 12:45:20 +00:00
bors
15d7278df8 Auto merge of #108974 - flip1995:clippyup, r=Manishearth
Update Clippy

r? `@Manishearth`

cc `@m-ou-se` This sync also includes https://github.com/rust-lang/rust-clippy/pull/10275
2023-03-10 20:08:26 +00:00
Philipp Krones
cf8a67d9ad Merge commit '3c06e0b1ce003912f8fe0536d3a7fe22558e38cf' into clippyup 2023-03-10 10:53:50 +01:00
bors
3c06e0b1ce Auto merge of #10275 - Alexendoo:format-args-ast, r=flip1995
Migrate `write.rs` to `rustc_ast::FormatArgs`

changelog: none

Part 1 of #10233

The additions to `clippy_utils` are the main novelty of this PR, there's no removals yet since other parts still rely on `FormatArgsExpn`

The changes to `write.rs` itself are relatively straightforward this time around, as there's no lints in it that rely on type checking format params

r? `@flip1995`
2023-03-10 09:38:18 +00:00
Philipp Krones
ec9029d12c
Bump Clippy version -> 0.1.70 2023-03-10 10:22:27 +01:00
Philipp Krones
baa997caf6
Merge remote-tracking branch 'upstream/master' into rustup 2023-03-10 10:22:18 +01:00
Camille GILLOT
27910cbcbd Introduce a no-op PlaceMention statement for let _ =. 2023-03-09 17:45:13 +00:00
Matthias Krüger
d9fdac52b2 Rollup merge of #108856 - Zeegomo:remove-drop-and-rep, r=tmiasko
Remove DropAndReplace terminator

#107844 made DropAndReplace unused, let's remove it completely from the codebase.
2023-03-08 21:26:51 +01:00
Arpad Borsos
90afb207eb Remove identity_future indirection
This was previously needed because the indirection used to hide some unexplained lifetime errors, which it turned out were related to the `min_choice` algorithm.

Removing the indirection also solves a couple of cycle errors, large moves and makes async blocks support the `#[track_caller]` annotation.
2023-03-08 15:37:14 +01:00
unexge
682d52cf7c Update assertion macro parsing logic for Rust 1.52 changes
Co-authored-by: Weihang Lo <me@weihanglo.tw>
2023-03-08 08:51:52 +00:00
unexge
b4b2b1235a Revert "Dogfood missing_assert_message on Clippy"
This reverts commit ec653570ad50d11ecc3b5649dd28e29ed96199d3.
2023-03-08 08:51:50 +00:00
Burak Varlı
8f3ac65227 Dogfood missing_assert_message on Clippy
Co-authored-by: Weihang Lo <me@weihanglo.tw>
2023-03-08 08:51:24 +00:00
Giacomo Pasini
5619fd5940 Remove DropAndReplace terminator
PR 107844 made DropAndReplace unused, let's remove it completely
from the codebase.
2023-03-07 14:25:22 +01:00
Alex Macleod
dc23e42fb6 Add format_args_collector internal lint 2023-03-06 21:38:32 +00:00
Alex Macleod
a2906a1598 Migrate write.rs to rustc_ast::FormatArgs 2023-03-06 21:38:32 +00:00
Vadim Petrochenkov
79359cbbcf rustc_middle: Remove trait DefIdTree
This trait was a way to generalize over both `TyCtxt` and `Resolver`, but now `Resolver` has access to `TyCtxt`, so this trait is no longer necessary.
2023-03-02 23:46:44 +04:00
Matthias Krüger
5cf9c3422c Rollup merge of #108516 - clubby789:rustc-box-restrict, r=compiler-errors
Restrict `#[rustc_box]` to `Box::new` calls

Currently, `#[rustc_box]` can be applied to any call expression with a single argument. This PR only allows it to be applied to calls to `Box::new`
2023-03-02 07:24:00 +01:00
Jason Newcomb
1a81a3e5cf Remove snippet_with_macro_callsite 2023-03-02 00:51:04 -05:00
clubby789
702a83b1a1 Restrict #[rustc_box] to Box::new calls 2023-03-02 02:42:19 +00:00
Andreas Deininger
03a3f74365 Fixing typos 2023-02-27 21:45:26 +01:00
bors
0966f59c78 Auto merge of #108474 - Jarcho:clippyup, r=Manishearth
Update Clippy

Seems like `@flip1995` so this is a couple days late.

r? `@Manishearth`
2023-02-26 18:45:47 +00:00
Jason Newcomb
0413fb35ba Merge commit '149392b0baa4730c68f3c3eadf5c6ed7b16b85a4' into clippyup 2023-02-25 19:28:50 -05:00
bors
149392b0ba Auto merge of #10402 - Jarcho:rustup, r=Jarcho
Rustup

Looks like `@flip1995`  is busy.

r? `@ghost`

changelog: None
2023-02-25 23:34:06 +00:00
Samuel Tardieu
64775f30c2 Do not panic when analyzing the malformed origin of a format string 2023-02-25 23:48:17 +01:00
Jason Newcomb
bc184e9c7d Merge branch 'master' into rustup 2023-02-25 17:43:19 -05:00
Michael Goulet
9fd0a415bb Make clippy happy 2023-02-25 19:46:36 +00:00
Nicholas Nethercote
e5df17aae5 Use List::empty() instead of mk_substs(&[]). 2023-02-24 07:33:02 +11:00
Nicholas Nethercote
783b55ec82 Rename many interner functions.
(This is a large commit. The changes to
`compiler/rustc_middle/src/ty/context.rs` are the most important ones.)

The current naming scheme is a mess, with a mix of `_intern_`, `intern_`
and `mk_` prefixes, with little consistency. In particular, in many
cases it's easy to use an iterator interner when a (preferable) slice
interner is available.

The guiding principles of the new naming system:
- No `_intern_` prefixes.
- The `intern_` prefix is for internal operations.
- The `mk_` prefix is for external operations.
- For cases where there is a slice interner and an iterator interner,
  the former is `mk_foo` and the latter is `mk_foo_from_iter`.

Also, `slice_interners!` and `direct_interners!` can now be `pub` or
non-`pub`, which helps enforce the internal/external operations
division.

It's not perfect, but I think it's a clear improvement.

The following lists show everything that was renamed.

slice_interners
- const_list
  - mk_const_list -> mk_const_list_from_iter
  - intern_const_list -> mk_const_list
- substs
  - mk_substs -> mk_substs_from_iter
  - intern_substs -> mk_substs
  - check_substs -> check_and_mk_substs (this is a weird one)
- canonical_var_infos
  - intern_canonical_var_infos -> mk_canonical_var_infos
- poly_existential_predicates
  - mk_poly_existential_predicates -> mk_poly_existential_predicates_from_iter
  - intern_poly_existential_predicates -> mk_poly_existential_predicates
  - _intern_poly_existential_predicates -> intern_poly_existential_predicates
- predicates
  - mk_predicates -> mk_predicates_from_iter
  - intern_predicates -> mk_predicates
  - _intern_predicates -> intern_predicates
- projs
  - intern_projs -> mk_projs
- place_elems
  - mk_place_elems -> mk_place_elems_from_iter
  - intern_place_elems -> mk_place_elems
- bound_variable_kinds
  - mk_bound_variable_kinds -> mk_bound_variable_kinds_from_iter
  - intern_bound_variable_kinds -> mk_bound_variable_kinds

direct_interners
- region
  - intern_region (unchanged)
- const
  - mk_const_internal -> intern_const
- const_allocation
  - intern_const_alloc -> mk_const_alloc
- layout
  - intern_layout -> mk_layout
- adt_def
  - intern_adt_def -> mk_adt_def_from_data (unusual case, hard to avoid)
  - alloc_adt_def(!) -> mk_adt_def
- external_constraints
  - intern_external_constraints -> mk_external_constraints

Other
- type_list
  - mk_type_list -> mk_type_list_from_iter
  - intern_type_list -> mk_type_list
- tup
  - mk_tup -> mk_tup_from_iter
  - intern_tup -> mk_tup
2023-02-24 07:32:24 +11:00
Alan Egerton
430c4ab7ff Remove type-traversal trait aliases 2023-02-22 17:04:58 +00:00
Jason Newcomb
0aad34e43f Normalize projections types when checking explicit_auto_deref 2023-02-21 15:59:06 -05:00
Nicholas Nethercote
71b8646854 Use ThinVec in various AST types.
This commit changes the sequence parsers to produce `ThinVec`, which
triggers numerous conversions.
2023-02-21 11:51:56 +11:00
Boxy
8a66a6816b Add Clause::ConstArgHasType variant 2023-02-17 09:30:33 +00:00
Kyle Matsuda
98c4a49db8 remove bound_type_of query; make type_of return EarlyBinder; change type_of in metadata 2023-02-16 17:05:56 -07:00
Kyle Matsuda
f0565c939e change usages of type_of to bound_type_of 2023-02-16 17:01:52 -07:00
Jirka Vebr
0b1ae20365
Fix dogfood tests by adding type annotations 2023-02-16 13:29:38 +01:00
Matthias Krüger
dd6534ae87 Rollup merge of #108047 - oli-obk:machine->🞋, r=RalfJung
Use `target` instead of `machine` for mir interpreter integer handling.

The naming of `machine` only makes sense from a mir interpreter internals perspective, but outside users talk about the `target` platform. As per https://github.com/rust-lang/rust/pull/108029#issuecomment-1429791015

r? `@RalfJung`
2023-02-15 21:30:57 +01:00
bors
30f38d69ab Auto merge of #108006 - cjgillot:def-impl, r=oli-obk
Avoid accessing HIR when it can be avoided

Experiment to see if it helps some incremental cases.

Will be rebased once https://github.com/rust-lang/rust/pull/107942 gets merged.

r? `@ghost`
2023-02-15 16:14:10 +00:00
Oli Scherer
cecc45cedc Use target instead of machine for mir interpreter integer handling.
The naming of `machine` only makes sense from a mir interpreter internals perspective, but outside users talk about the `target` platform
2023-02-15 08:56:18 +00:00
bors
5a8b288712 Auto merge of #108056 - matthiaskrgr:rollup-oa6bxvh, r=matthiaskrgr
Rollup of 9 pull requests

Successful merges:

 - #107573 (Update the minimum external LLVM to 14)
 - #107626 (Fix `x fix` on the standard library itself)
 - #107673 (update ICU4X to 1.1.0)
 - #107733 (Store metrics from `metrics.json` to CI PGO timer)
 - #108007 (Use `is_str` instead of string kind comparison)
 - #108033 (add an unstable `#[rustc_coinductive]` attribute)
 - #108039 (Refactor refcounted structural_impls via functors)
 - #108040 (Use derive attributes for uninteresting traversals)
 - #108044 (interpret: rename Pointer::from_addr → from_addr_invalid)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2023-02-14 21:07:04 +00:00
Camille GILLOT
e41c37316d Add of_trait to DefKind::Impl. 2023-02-14 19:55:44 +00:00
Matthias Krüger
b8c36429e4 Rollup merge of #108007 - compiler-errors:str-less-kind, r=Nilstrieb
Use `is_str` instead of string kind comparison

Split out from #107939
2023-02-14 18:24:42 +01:00
Oli Scherer
e3a739a115 s/eval_usize/eval_target_usize/ for clarity 2023-02-14 08:51:19 +00:00
Michael Goulet
4b8f112d09 Use is_str instead of string kind comparison 2023-02-13 19:06:22 +00:00
Alan Egerton
340d9e818a Make visiting traits generic over the Interner 2023-02-13 10:24:49 +00:00
Alan Egerton
e8e9c32af9 Alias folding/visiting traits instead of re-export 2023-02-13 10:24:46 +00:00
bors
863e96d626 Auto merge of #107507 - BoxyUwU:deferred_projection_equality, r=lcnr
Implement `deferred_projection_equality` for erica solver

Somewhat of a revival of #96912. When relating projections now emit an `AliasEq` obligation instead of attempting to determine equality of projections that may not be as normalized as possible (i.e. because of lazy norm, or just containing inference variables that prevent us from resolving an impl). Only do this when the new solver is enabled
2023-02-11 05:46:24 +00:00
Mara Bos
145e6a94d6 Add suspicious_command_arg_space lint. 2023-02-10 19:02:39 +01:00
Boxy
cd3bcbb8e5 add AliasEq to PredicateKind 2023-02-10 13:44:46 +00:00
Philipp Krones
e7fe1f9c14 Merge commit '0f7558148c22e53cd4608773b56cdfa50dcdeac3' into clippyup 2023-02-10 14:01:19 +01:00
Philipp Krones
7c61b4ed89
Merge remote-tracking branch 'upstream/master' into rustup 2023-02-10 11:33:45 +01:00
bors
17369f324c Auto merge of #106227 - bryangarza:ctfe-limit, r=oli-obk
Use stable metric for const eval limit instead of current terminator-based logic

This patch adds a `MirPass` that inserts a new MIR instruction `ConstEvalCounter` to any loops and function calls in the CFG. This instruction is used during Const Eval to count against the `const_eval_limit`, and emit the `StepLimitReached` error, replacing the current logic which uses Terminators only.

The new method of counting loops and function calls should be more stable across compiler versions (i.e., not cause crates that compiled successfully before, to no longer compile when changes to the MIR generation/optimization are made).

Also see: #103877
2023-01-29 04:11:27 +00:00
bors
79475f56ec Auto merge of #107206 - cjgillot:no-h2l-map, r=WaffleLapkin
Remove HirId -> LocalDefId map from HIR.

Having this map in HIR prevents the creating of new definitions after HIR has been built.
Thankfully, we do not need it.

Based on https://github.com/rust-lang/rust/pull/103902
2023-01-28 16:11:33 +00:00
Camille GILLOT
3e32533cc2 Remove HirId -> LocalDefId map from HIR. 2023-01-28 09:55:26 +00:00
Camille GILLOT
92c4f1e2d9 Take a LocalDefId in hir::Visitor::visit_fn. 2023-01-28 09:51:50 +00:00
Scott McMurray
e65a7ff0b3 Remove from librustdoc and clippy too 2023-01-27 20:44:19 -08:00
bors
997fe0d57e Auto merge of #107386 - flip1995:clippyup, r=Manishearth
Update Clippy

r? `@Manishearth`
2023-01-27 21:20:39 +00:00
Philipp Krones
5c7a65251a Merge commit '1480cea393d0cee195e59949eabdfbcf1230f7f9' into clippyup 2023-01-27 21:09:08 +01:00
Philipp Krones
6f9c70a201
Bump Clippy version -> 0.1.69 2023-01-27 20:27:00 +01:00
Philipp Krones
2bc2431fd1
Merge remote-tracking branch 'upstream/master' into rustup 2023-01-27 20:26:35 +01:00
bors
bcb90528c0 Auto merge of #107372 - JohnTitor:rollup-zkl2ges, r=JohnTitor
Rollup of 9 pull requests

Successful merges:

 - #106806 (Replace format flags u32 by enums and bools.)
 - #107194 (Remove dependency on slice_internals feature in rustc_ast)
 - #107234 (Revisit fix_is_ci_llvm_available logic)
 - #107316 (Update snap from `1.0.1` to `1.1.0`)
 - #107321 (solver comments + remove `TyCtxt::evaluate_goal`)
 - #107332 (Fix wording from `rustbuild` to `bootstrap`)
 - #107347 (reduce rightward-drift)
 - #107352 (compiler: Fix E0587 explanation)
 - #107357 (Fix infinite loop in rustdoc get_all_import_attributes function)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2023-01-27 17:49:56 +00:00
Mara Bos
b64a20930c Update clippy for restructured format flags fields. 2023-01-27 08:53:41 +01:00
Kyle Matsuda
afb586fa1f change fn_sig query to use EarlyBinder; remove bound_fn_sig query; add EarlyBinder to fn_sig in metadata 2023-01-26 20:28:25 -07:00
Kyle Matsuda
38899d0c29 replace usages of fn_sig query with bound_fn_sig 2023-01-26 20:15:36 -07:00
bors
a64940f948 Auto merge of #106745 - m-ou-se:format-args-ast, r=oli-obk
Move format_args!() into AST (and expand it during AST lowering)

Implements https://github.com/rust-lang/compiler-team/issues/541

This moves FormatArgs from rustc_builtin_macros to rustc_ast_lowering. For now, the end result is the same. But this allows for future changes to do smarter things with format_args!(). It also allows Clippy to directly access the ast::FormatArgs, making things a lot easier.

This change turns the format args types into lang items. The builtin macro used to refer to them by their path. After this change, the path is no longer relevant, making it easier to make changes in `core`.

This updates clippy to use the new language items, but this doesn't yet make clippy use the ast::FormatArgs structure that's now available. That should be done after this is merged.
2023-01-26 12:44:47 +00:00
Bryan Garza
520814b713 Update Clippy for ConstEvalCounter 2023-01-23 23:56:22 +00:00
Kyle Matsuda
2bfba8685d fix missing subst in clippy utils 2023-01-17 08:55:28 -07:00
Kyle Matsuda
a084d7908c change item_bounds query to return EarlyBinder; remove bound_item_bounds query 2023-01-17 08:55:28 -07:00
Kyle Matsuda
5dac27503f change usages of item_bounds query to bound_item_bounds 2023-01-17 08:55:27 -07:00
bors
07a7603994 Auto merge of #10187 - dswij:issue-10182-semicolon, r=Jarcho
[needless_return]: Remove all semicolons on suggestion

Closes #10182

Multiple semicolons currently breaks autofix for `needless_return` suggestions. Any semicolons left after removing return means that the return type will always be `()`, and thus fail to compile.

This PR allows `needless_return` to remove multiple semicolons.

The change won't cover the case where there is multiple line yet.

i.e.

```rust
fn needless_return() -> bool {
    return true;
;;
}
```

---

changelog: Sugg: [`needless_return`]: Now removes all semicolons on the same line
[#10187](https://github.com/rust-lang/rust-clippy/pull/10187)
<!-- changelog_checked -->
2023-01-15 15:49:40 +00:00
Philipp Krones
d21616737b Merge commit '7f27e2e74ef957baa382dc05cf08df6368165c74' into clippyup 2023-01-12 19:48:13 +01:00
bors
7f27e2e74e Auto merge of #10192 - Jarcho:revert_9701, r=flip1995
Partially revert #9701

This partially reverts #9701 due to #10134

r? `@flip1995`

changelog: None
2023-01-12 18:47:17 +00:00
Jason Newcomb
757e944ba6 Adjust old code for newer rustc version. 2023-01-12 13:29:23 -05:00
Jason Newcomb
5eed9c69ca Revert 4dbd8ad34e, c7dc961558, ed519ad746 and c6477eb711 2023-01-12 13:28:22 -05:00
Philipp Krones
cd76d574e4
Also add rustc_driver to clippy_utils
I'm not sure why this is necessary. It worked without this for me
locally, but this fails in CI. The same was done in clippy_dev
2023-01-12 19:12:06 +01:00
Philipp Krones
631481ffb3
Merge remote-tracking branch 'upstream/master' into rustup 2023-01-12 18:59:59 +01:00
Mara Bos
2bcd697e2d Update clippy for new format_args!() lang items. 2023-01-12 00:25:46 +01:00
Mara Bos
dd168838b9 Make clippy compile. 2023-01-12 00:25:46 +01:00
dswij
d73adea465 needless_return: remove multiple semis on suggestion 2023-01-11 07:09:57 +08:00
chansuke
d8877bbd8a hotfix: remove ITER_COUNT since it is not called 2023-01-07 22:57:30 +09:00
bors
cf1d3d0370 Auto merge of #10162 - tamaroning:fix10018, r=xFrednet
Fix FP of single-element-loop

closes #10018

---

changelog: [`single_element_loop`]: No longer lints, if the loop contains a `break` or `continue`
[#10162](https://github.com/rust-lang/rust-clippy/pull/10162)
<!-- changelog_checked -->
2023-01-07 11:53:45 +00:00
Raiki Tamura
ce56cf71d9 chore 2023-01-07 20:44:02 +09:00
bors
ef5a545f98 Auto merge of #10164 - khuey:default_enum_unit_variant_msrv, r=llogiq
Restrict suggestion of deriving Default for enums to MSRV 1.62.

See https://blog.rust-lang.org/2022/06/30/Rust-1.62.0.html#default-enum-variants

---

changelog: none
2023-01-07 00:28:00 +00:00
Caio
4262aebeaa [arithmetic-side-effects] Consider negative numbers and add more tests 2023-01-06 12:25:51 -03:00
Kyle Huey
6433d796a1 Restrict suggestion of deriving Default for enums to MSRV 1.62.
See https://blog.rust-lang.org/2022/06/30/Rust-1.62.0.html#default-enum-variants
2023-01-05 13:06:43 -08:00
bors
d39dd869a5 Auto merge of #10140 - chansuke:chore/add-comment-for-enclosing-block, r=Alexendoo
chore: add simple comment for `get_enclosing_block`

I was reading the code of `clippy_utils/src/lib.rs` and thought that adding comment on `get_closing_block` would be helpful to first time visitor.

---

changelog: none
<!-- changelog_checked -->
2023-01-04 20:52:31 +00:00
Michael Goulet
70f6c478f6 get_parent and find_parent 2023-01-04 00:43:13 +00:00
Michael Goulet
73d293fb6d rename get_parent_node to parent_id 2023-01-04 00:43:13 +00:00
Eric Wu
cf4e9813b0 use OnlyBodies instead of All
we only need to check closures, so
nestedfilter::All was overkill here.
2023-01-02 18:35:21 -05:00
Eric Wu
8de011fdf7 don't lint field_reassign when field in closure
This commit makes the ContainsName struct visit all interior
expressions, which means that ContainsName will return true
even if `name` is used in a closure within `expr`.
2023-01-01 21:41:46 -05:00
chansuke
6145194b68 chore: add simple comment for get_enclosing_block 2023-01-02 00:18:03 +09:00
bors
cd579d69ec Auto merge of #106266 - matthiaskrgr:rollup-cxrdbzy, r=matthiaskrgr
Rollup of 9 pull requests

Successful merges:

 - #104531 (Provide a better error and a suggestion for `Fn` traits with lifetime params)
 - #105899 (`./x doc library --open` opens `std`)
 - #106190 (Account for multiple multiline spans with empty padding)
 - #106202 (Trim more paths in obligation types)
 - #106234 (rustdoc: simplify settings, help, and copy button CSS by not reusing)
 - #106236 (docs/test: add docs and a UI test for `E0514` and `E0519`)
 - #106259 (Update Clippy)
 - #106260 (Fix index out of bounds issues in rustdoc)
 - #106263 (Formatter should not try to format non-Rust files)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2022-12-29 19:40:06 +00:00
Philipp Krones
4ccafea92d Merge commit '4f3ab69ea0a0908260944443c739426cc384ae1a' into clippyup 2022-12-29 14:28:34 +01:00
Nilstrieb
c617a8e01c Rename Rptr to Ref in AST and HIR
The name makes a lot more sense, and `ty::TyKind` calls it `Ref` already
as well.
2022-12-28 18:52:36 +01:00
bors
4fe3727c39 Auto merge of #9701 - smoelius:improve-possible-borrower, r=Jarcho
Improve `possible_borrower`

This PR makes several improvements to `clippy_uitls::mir::possible_borrower`. These changes benefit both `needless_borrow` and `redundant clone`.

1. **Use the compiler's `MaybeStorageLive` analysis**

I could spot not functional differences between the one in the compiler and the one in Clippy's repository. So, I removed the latter in favor of the the former.

2. **Make `PossibleBorrower` a dataflow analysis instead of a visitor**

The main benefit of this change is that allows `possible_borrower` to take advantage of statements' relative locations, which is easier to do in an analysis than in a visitor.

This is easier to illustrate with an example, so consider this one:
```rust
    fn foo(cx: &LateContext<'_>, lint: &'static Lint) {
        cx.struct_span_lint(lint, rustc_span::Span::default(), "", |diag| diag.note(&String::new()));
        //                                                                          ^
    }
```
We would like to flag the `&` pointed to by the `^` for removal. `foo`'s MIR begins like this:
```rust
fn span_lint::foo::{closure#0}(_1: [closure@$DIR/needless_borrow.rs:396:68: 396:74], _2: &mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()>) -> &mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()> {
    debug diag => _2;                    // in scope 0 at $DIR/needless_borrow.rs:396:69: 396:73
    let mut _0: &mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()>; // return place in scope 0 at $DIR/needless_borrow.rs:396:75: 396:75
    let mut _3: &mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()>; // in scope 0 at $DIR/needless_borrow.rs:396:75: 396:100
    let mut _4: &mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()>; // in scope 0 at $DIR/needless_borrow.rs:396:75: 396:100
    let mut _5: &std::string::String;    // in scope 0 at $DIR/needless_borrow.rs:396:85: 396:99
    let _6: std::string::String;         // in scope 0 at $DIR/needless_borrow.rs:396:86: 396:99

    bb0: {
        StorageLive(_3);                 // scope 0 at $DIR/needless_borrow.rs:396:75: 396:100
        StorageLive(_4);                 // scope 0 at $DIR/needless_borrow.rs:396:75: 396:100
        _4 = &mut (*_2);                 // scope 0 at $DIR/needless_borrow.rs:396:75: 396:100
        StorageLive(_5);                 // scope 0 at $DIR/needless_borrow.rs:396:85: 396:99
        StorageLive(_6);                 // scope 0 at $DIR/needless_borrow.rs:396:86: 396:99
        _6 = std::string::String::new() -> bb1; // scope 0 at $DIR/needless_borrow.rs:396:86: 396:99
                                         // mir::Constant
                                         // + span: $DIR/needless_borrow.rs:396:86: 396:97
                                         // + literal: Const { ty: fn() -> std::string::String {std::string::String::new}, val: Value(<ZST>) }
    }

    bb1: {
        _5 = &_6;                        // scope 0 at $DIR/needless_borrow.rs:396:85: 396:99
        _3 = rustc_errors::diagnostic_builder::DiagnosticBuilder::<'_, ()>::note::<&std::string::String>(move _4, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/needless_borrow.rs:396:75: 396:100
                                         // mir::Constant
                                         // + span: $DIR/needless_borrow.rs:396:80: 396:84
                                         // + literal: Const { ty: for<'a> fn(&'a mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()>, &std::string::String) -> &'a mut rustc_errors::diagnostic_builder::DiagnosticBuilder<'_, ()> {rustc_errors::diagnostic_builder::DiagnosticBuilder::<'_, ()>::note::<&std::string::String>}, val: Value(<ZST>) }
    }
```
The call to `diag.note` appears in `bb1` on the line beginning with `_3 =`. The `String` is owned by `_6`. So, in the call to `diag.note`, we would like to know whether there are any references to `_6` besides `_5`.

The old, visitor approach did not consider the relative locations of statements. So all borrows were treated the same, *even if they occurred after the location of interest*.

For example, before the `_3 = ...` call, the possible borrowers of `_6` would be just `_5`. But after the call, the possible borrowers would include `_2`, `_3`, and `_4`.

So, in a sense, the call from which we are try to remove the needless borrow is trying to prevent us from removing the needless borrow(!).

With an analysis, things do not get so muddled. We can determine the set of possible borrowers at any specific location, e.g., using a `ResultsCursor`.

3. **Change `only_borrowers` to `at_most_borrowers`**

`possible_borrowers` exposed a function `only_borrowers` that determined whether the borrowers of some local were *exactly* some set `S`. But, from what I can tell, this was overkill. For the lints that currently use `possible_borrower` (`needless_borrow` and `redundant_clone`), all we really want to know is whether there are borrowers *other than* those in `S`. (Put another way, we only care about the subset relation in one direction.) The new function `at_most_borrowers` takes this more tailored approach.

4. **Compute relations "on the fly" rather than using `transitive_relation`**

The visitor would compute and store the transitive closure of the possible borrower relation for an entire MIR body.

But with an analysis, there is effectively a different possible borrower relation at each location in the body. Computing and storing a transitive closure at each location would not be practical.

So the new approach is to compute the transitive closure on the fly, as needed. But the new approach might actually be more efficient, as I now explain.

In all current uses of `at_most_borrowers` (previously `only_borrowers`), the size of the set of borrowers `S` is at most 2. So you need only check at most three borrowers to determine whether the subset relation holds. That is, once you have found a third borrower, you can stop, since you know the relation cannot hold.

Note that `transitive_relation` is still used by `clippy_uitls::mir::possible_origin` (a kind of "subroutine" of `possible_borrower`).

cc: `@Jarcho`

---

changelog: [`needless_borrow`], [`redundant_clone`]: Now track references better and detect more cases
[#9701](https://github.com/rust-lang/rust-clippy/pull/9701)
<!-- changelog_checked -->
2022-12-22 15:08:04 +00:00
bors
8a6e6fd623 Auto merge of #10056 - koka831:fix/9993, r=Jarcho
Avoid `match_wildcard_for_single_variants` on guarded wild matches

fix #9993

changelog: FP: [`match_wildcard_for_single_variants`]: No longer lints on wildcards with a guard
[#10056](https://github.com/rust-lang/rust-clippy/pull/10056)
<!-- changelog_checked -->

r? `@Jarcho`
2022-12-22 14:54:50 +00:00
Samuel Moelius
4dbd8ad34e Address https://github.com/rust-lang/rust/pull/105659 2022-12-20 05:30:12 -05:00
Samuel Moelius
c7dc961558 Address review comments 2022-12-20 05:12:13 -05:00
Samuel Moelius
26df55112f Fix adjacent code 2022-12-20 05:12:13 -05:00
Samuel Moelius
ed519ad746 Improve possible_borrower 2022-12-20 05:12:13 -05:00
Samuel Moelius
cd3d38aa27 Use rustc_mir_dataflow::impls::MaybeStorageLive 2022-12-20 05:12:13 -05:00
Niki4tap
3cc67d0856 Relax clippy_utils::consts::miri_to_const pointer type restrictiveness 2022-12-18 03:02:45 +03:00
Philipp Krones
1c422524c7 Merge commit '4bdfb0741dbcecd5279a2635c3280726db0604b5' into clippyup 2022-12-17 14:12:54 +01:00
Philipp Krones
1f1d23cf51
Bump Clippy version -> 0.1.68 2022-12-17 13:57:41 +01:00
Philipp Krones
d6488ae144
Merge remote-tracking branch 'upstream/master' into rustup 2022-12-17 13:56:32 +01:00
Matthias Krüger
cfe1e040e7 Rollup merge of #105743 - nnethercote:SimplifiedType-cleanups, r=lcnr
`SimplifiedType` cleanups

r? `@lcnr`
2022-12-15 22:03:01 +01:00
Gary Guo
7574c98371 Fix new_return_no_self with recursive bounds 2022-12-15 18:56:13 +00:00
Nicholas Nethercote
e723fc4f56 Merge SimplifiedTypeGen<D> into SimplifiedType.
`SimplifiedTypeGen<DefId>` is the only instantiation used, so we don't
need the generic parameter.
2022-12-15 15:13:19 +11:00
Oli Scherer
65069d5c5b Ensure no one constructs AliasTys themselves 2022-12-14 15:36:39 +00:00
Michael Goulet
957ab6ae52 Combine projection and opaque into alias 2022-12-13 17:48:55 +00:00
Michael Goulet
89b8840543 squash OpaqueTy and ProjectionTy into AliasTy 2022-12-13 17:40:27 +00:00
Michael Goulet
a274e7e9a2 ProjectionTy.item_def_id -> ProjectionTy.def_id 2022-12-13 17:34:44 +00:00
Michael Goulet
ad55e4c972 Use ty::OpaqueTy everywhere 2022-12-13 17:29:26 +00:00
bors
17a092f467 Auto merge of #105160 - nnethercote:rm-Lit-token_lit, r=petrochenkov
Remove `token::Lit` from `ast::MetaItemLit`.

Currently `ast::MetaItemLit` represents the literal kind twice. This PR removes that redundancy. Best reviewed one commit at a time.

r? `@petrochenkov`
2022-12-12 05:16:50 +00:00
koka
055f349670
Avoid match_wildcard_for_single_variants on guarded wild matches
fix #9993
changlog: [`match_wildcard_for_single_variants`] avoid suggestion on wildcard with guard
2022-12-10 21:05:08 +09:00
Taiki Endo
e5010c996e uninlined_format_args: Ignore assert! and debug_assert! before 2021 edition 2022-12-10 18:35:24 +09:00
Jakob Degen
dc50bb0961 Remove unneeded field from SwitchTargets 2022-12-09 04:53:10 -08:00
Alex Macleod
591c18d2f0 Add 1.58 MSRV for collapsible_str_replace 2022-12-07 17:45:12 +00:00
Samuel Tardieu
fa4288af1f Add missing slash to produce function documentation 2022-12-02 16:26:15 +01:00
bors
a1d22808af Auto merge of #104963 - petrochenkov:noaddids2, r=cjgillot
rustc_ast_lowering: Stop lowering imports into multiple items

Lower them into a single item with multiple resolutions instead.
This also allows to remove additional `NodId`s and `DefId`s related to those additional items.
2022-12-02 04:24:57 +00:00
Nicholas Nethercote
6481d37bb9 Add StrStyle to ast::LitKind::ByteStr.
This is required to distinguish between cooked and raw byte string
literals in an `ast::LitKind`, without referring to an adjacent
`token::Lit`. It's a prerequisite for the next commit.
2022-12-02 10:38:58 +11:00
bors
e16a8b93ba Auto merge of #10008 - Jarcho:issue_9882, r=Manishearth
Treat custom enum discriminant values as constants

fixes #9882
changelog: All lints: Don't lint in enum discriminant values when the suggestion won't work in a const context
2022-12-01 22:37:15 +00:00
Philipp Krones
d05e2865a0 Merge commit 'd822110d3b5625b9dc80ccc442e06fc3cc851d76' into clippyup 2022-12-01 18:29:38 +01:00
Vadim Petrochenkov
b0d490e308 rustc_ast_lowering: Stop lowering imports into multiple items
Lower them into a single item with multiple resolutions instead.
This also allows to remove additional `NodId`s and `DefId`s related to those additional items.
2022-12-01 18:51:20 +03:00
Vadim Petrochenkov
4f8c49e950 rustc_hir: Relax lifetime requirements on Visitor::visit_path 2022-12-01 17:04:02 +03:00
Philipp Krones
11434f270f
Merge remote-tracking branch 'upstream/master' into rustup 2022-12-01 12:55:15 +01:00
Jason Newcomb
a1b15f13f7 Treat custom enum discriminant values as constants 2022-11-30 22:34:42 -05:00
Jason Newcomb
e0eba9cafc Don't cross contexts while building the suggestion for redundant_closure_call 2022-11-30 10:53:27 -05:00
Michael Goulet
a61e2a91f5 FnCtxt normalization stuff 2022-11-28 17:35:39 +00:00
Michael Goulet
82c07f09e5 partially_normalize_... -> At::normalize 2022-11-28 17:35:39 +00:00
bors
696ea0627d Auto merge of #104048 - cjgillot:split-lifetime, r=compiler-errors
Separate lifetime ident from lifetime resolution in HIR

Drive-by: change how suggested generic args are computed.
Fixes https://github.com/rust-lang/rust/issues/103815

I recommend reviewing commit-by-commit.
2022-11-27 14:30:19 +00:00
Alex Macleod
461e219d1d Allow using clippy::msrv as an outer attribute 2022-11-27 12:43:17 +00:00
bors
8b2f7e3b52 Auto merge of #104846 - spastorino:santa-clauses-make-goals-early-christmas-🎄, r=oli-obk
Branch Clause from Predicate

r? `@oli-obk`

This is part of what's proposed in https://github.com/rust-lang/compiler-team/issues/531
2022-11-25 15:59:31 +00:00
kraktus
2fd10bc59b dogfood with expanded uninlined_format_args 2022-11-25 16:49:05 +01:00
Matthias Krüger
268d230231 Rollup merge of #104873 - RalfJung:therefore, r=Dylan-DPC
RefCell::get_mut: fix typo

and fix the same typo in a bunch of other places
2022-11-25 10:44:40 +01:00
Lukas Wirth
4fa5757530 Lint unnecessary safety comments on statements and block tail expressions 2022-11-25 10:09:34 +01:00
Ralf Jung
424ae23958 RefCell::get_mut: fix typo
and fix the same typo in a bunch of other places
2022-11-25 08:52:06 +01:00
Santiago Pastorino
3f059a49a4 Introduce PredicateKind::Clause 2022-11-25 00:04:54 -03:00
Matthias Krüger
ac6a77ed95 Rollup merge of #104742 - WaffleLapkin:forbidden-SUPER-deref, r=compiler-errors
Make `deref_into_dyn_supertrait` lint the impl and not the usage

Proposed by ``@compiler-errors`` in https://github.com/rust-lang/rust/issues/89460#issuecomment-1320806785
r? ``@crlf0710``
2022-11-24 08:42:34 +01:00
Esteban Küber
2a530dce53 Fix clippy code 2022-11-23 12:17:47 -08:00
Camille GILLOT
93cfcedfd5 Separate lifetime ident from resolution in HIR. 2022-11-23 19:33:06 +00:00
Maybe Waffle
284ce9ed0d Move get_associated_type from clippy to rustc_lint 2022-11-23 15:40:27 +00:00