Commit Graph

16108 Commits

Author SHA1 Message Date
dswij
a4b53c9c14 manual_let_else: Add test with expanded macros 2022-11-25 18:17:34 +08:00
dswij
bbcc260b6f manual_let_else: keep macro call on suggestion blocks 2022-11-25 18:04:17 +08:00
Matthias Krüger
268d230231 Rollup merge of - 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
f96dd38318 Address reviews 2022-11-25 10:09:35 +01:00
Lukas Wirth
9c69e1cc89 Simplify 2022-11-25 10:09:35 +01:00
Lukas Wirth
4fa5757530 Lint unnecessary safety comments on statements and block tail expressions 2022-11-25 10:09:34 +01:00
Lukas Wirth
b8c3f64cee Add some more test cases for undocumented_unsafe_blocks 2022-11-25 10:09:34 +01:00
Lukas Wirth
a116b9bdba Lint unnecessary safety comments on items 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
Oli Scherer
53f78ae0f3 Simplify a bunch of trait ref obligation creations 2022-11-25 00:04:54 -03:00
bors
1a9657139d Auto merge of - Alexendoo:syntax-tree-rfc-remark, r=Manishearth
Fix remark for `rfcs/0001-syntax-tree-patterns.md`

https://github.com/rust-lang/rust-clippy/actions/runs/3542472739/jobs/5948006255#step:6:37

Removes the unused definitions, for the line length I disabled the lint for now as I gather it's going to be moved into the book in the future

r? `@Manishearth`

changelog: none
2022-11-24 23:46:59 +00:00
Alex Macleod
4d0fb08921 Fix remark for rfcs/0001-syntax-tree-patterns.md 2022-11-24 21:56:54 +00:00
bors
2ad5e486f6 Auto merge of - HKalbasi:master, r=oli-obk
Make rustc_target usable outside of rustc

I'm working on showing type size in rust-analyzer (https://github.com/rust-lang/rust-analyzer/pull/13490) and I currently copied rustc code inside rust-analyzer, which works, but is bad. With this change, I would become able to use `rustc_target` and `rustc_index` directly in r-a, reducing the amount of copy needed.

This PR contains some feature flag to put nightly features behind them to make crates buildable on the stable compiler + makes layout related types generic over index type + removes interning of nested layouts.
2022-11-24 20:29:13 +00:00
Camille GILLOT
42db5e5e62 Use kw::Empty for elided lifetimes in path. 2022-11-24 17:48:59 +00:00
bors
300d10fb99 Auto merge of - Swatinem:async-gen, r=oli-obk
Avoid `GenFuture` shim when compiling async constructs

Previously, async constructs would be lowered to "normal" generators, with an additional `from_generator` / `GenFuture` shim in between to convert from `Generator` to `Future`.

The compiler will now special-case these generators internally so that async constructs will *directly* implement `Future` without the need to go through the `from_generator` / `GenFuture` shim.

The primary motivation for this change was hiding this implementation detail in stack traces and debuginfo, but it can in theory also help the optimizer as there is less abstractions to see through.

---

Given this demo code:

```rust
pub async fn a(arg: u32) -> Backtrace {
    let bt = b().await;
    let _arg = arg;
    bt
}

pub async fn b() -> Backtrace {
    Backtrace::force_capture()
}
```

I would get the following with the latest stable compiler (on Windows):

```
   4: async_codegen:🅱️:async_fn$0
             at .\src\lib.rs:10
   5: core::future::from_generator::impl$1::poll<enum2$<async_codegen:🅱️:async_fn_env$0> >
             at /rustc/897e37553bba8b42751c67658967889d11ecd120\library\core\src\future\mod.rs:91
   6: async_codegen:🅰️:async_fn$0
             at .\src\lib.rs:4
   7: core::future::from_generator::impl$1::poll<enum2$<async_codegen:🅰️:async_fn_env$0> >
             at /rustc/897e37553bba8b42751c67658967889d11ecd120\library\core\src\future\mod.rs:91
```

whereas now I get a much cleaner stack trace:

```
   3: async_codegen:🅱️:async_fn$0
             at .\src\lib.rs:10
   4: async_codegen:🅰️:async_fn$0
             at .\src\lib.rs:4
```
2022-11-24 17:14:42 +00:00
hkalbasi
0aaea40eb2 move some layout logic to rustc_target::abi::layout 2022-11-24 16:26:12 +03:30
Arpad Borsos
1ebdcca8b9 Avoid GenFuture shim when compiling async constructs
Previously, async constructs would be lowered to "normal" generators,
with an additional `from_generator` / `GenFuture` shim in between to
convert from `Generator` to `Future`.

The compiler will now special-case these generators internally so that
async constructs will *directly* implement `Future` without the need
to go through the `from_generator` / `GenFuture` shim.

The primary motivation for this change was hiding this implementation
detail in stack traces and debuginfo, but it can in theory also help
the optimizer as there is less abstractions to see through.
2022-11-24 10:04:27 +01:00
Matthias Krüger
ac6a77ed95 Rollup merge of - 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
Manish Goregaokar
be172c52f7
Merge pull request from fkohlgrueber/syntax-tree-patterns
RFC: syntax tree patterns
2022-11-23 17:24:17 -05:00
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
Manish Goregaokar
91d2ce3020 Rollup merge of - oli-obk:impl_trait_for_tait, r=lcnr
Allow opaque types in trait impl headers and rely on coherence to reject unsound cases

r? ````@lcnr````

fixes 
2022-11-22 22:54:38 -05:00
bors
69c5128cda Auto merge of - Alexendoo:msrv-stack, r=Jarcho
Add `clippy_utils::msrv::Msrv` to keep track of the current MSRV

changelog: Fix the scoping of the `#![clippy::msrv]` attribute

Fixes 

r? `@Jarcho`
2022-11-22 20:09:58 +00:00
bors
f6f6d542d5 Auto merge of - smoelius:use-walk_generic_arg, r=Alexendoo
Use `walk_generic_arg`

This is a tiny followup to to , now that https://github.com/rust-lang/rust/pull/103692 has landed.

r? `@Alexendoo`

changelog: none
2022-11-22 19:07:05 +00:00
Samuel Moelius
2cda73f617 Use walk_generic_arg 2022-11-22 13:47:38 -05:00
bors
5595d7f5d5 Auto merge of - kraktus:lazy_eval, r=xFrednet
Fix [`unnecessary_lazy_eval`] when type has significant drop

fix for https://github.com/rust-lang/rust-clippy/issues/9427#issuecomment-1295742590

However current implementation gives too many false positive, rending the lint almost useless.

I don't know what's the best way to check if a type has a "significant" drop (in the common meaning, not the internal rustc one, for example Option<(u8, u8)> should not be considered significant)

changelog: Fix [`unnecessary_lazy_eval`] when type has significant drop
2022-11-22 17:21:23 +00:00
bors
b33afd61ed Auto merge of - flip1995:clippyup, r=Manishearth,flip1995
Update Clippy

r? `@Manishearth`

Sorry for taking so long. There were so many blockers and so little time. This situation should be mitigated with  in the future.
2022-11-22 17:09:06 +00:00
Philipp Krones
e95d40980b Clippy: Workaround for let_chains issue 2022-11-22 14:30:29 +01:00
bors
94ce4465e5 Auto merge of - smoelius:issue-9771, r=flip1995
Fix  (`unnecessary_to_owned` false positive)

Fixes 

In that issue's example(s), the lint tried to add a `&` to a value, which implicitly changed the type of a field to a reference. The fix is to add the reference to `receiver_ty` (the type of the receiver of the `to_owned`-like method), before passing `receiver_ty` to `can_change_type`. `can_change_type` properly rejects the modified `receiver_ty`.

cc: `@mikerite` just because I think he was the author of `can_change_type`.

changelog: fix `unnecessary_to_owned` false positive which implicitly tried to change the type of a field to a reference
2022-11-22 12:50:08 +00:00
bors
9e09307245 Auto merge of - petrochenkov:nofict, r=nagisa
Unreserve braced enum variants in value namespace

With this PR braced enum variants (`enum E { V { /*...*/ } }`) no longer take a slot in value namespace, so the special case mentioned in the note in https://github.com/rust-lang/rfcs/blob/master/text/1506-adt-kinds.md#braced-structs is removed.

Report - https://github.com/rust-lang/rust/pull/103578#issuecomment-1292594900.
2022-11-22 10:17:09 +00:00
bors
f4083c5ae7 Auto merge of - matttpt:fix-redundant-closure-for-method-calls-suggestion, r=flip1995
Fix `redundant_closure_for_method_calls` suggestion

Fixes . The issue turns out to be more general than raw pointers. The `redundant_closure_for_method_calls` lint produces incorrect suggestions when the method is associated with a type that must be enclosed in angle brackets or must be written with generic arguments substituted. For example:

```rust
fn main() {
    // Clippy's suggestion: [T; N]::as_slice
    // Correct suggestion:  <[u8; 3]>::as_slice
    let array_opt: Option<&[u8; 3]> = Some(&[4, 8, 7]);
    array_opt.map(|a| a.as_slice());

    // Clippy's suggestion: [T]::len
    // Correct suggestion:  <[u8]>::len
    let slice_opt: Option<&[u8]> = Some(b"slice");
    slice_opt.map(|s| s.len());

    // Clippy's suggestion: *const T::is_null
    // Correct suggestion:  <*const usize>::is_null
    let ptr_opt: Option<*const usize> = Some(&487);
    ptr_opt.map(|p| p.is_null());

    // Clippy's suggestion: dyn TestTrait::method_on_dyn
    // Correct suggestion:  <dyn TestTrait>::method_on_dyn
    let test_struct = TestStruct {};
    let dyn_opt: Option<&dyn TestTrait> = Some(&test_struct);
    dyn_opt.map(|d| d.method_on_dyn());
}

// For the trait object example:
trait TestTrait {}
struct TestStruct {}
impl TestTrait for TestStruct {}

impl dyn TestTrait + '_ {
    fn method_on_dyn(&self) -> bool {
        false
    }
}
```

The issue also affects references and tuples, though I had to patch the standard library with non-trait methods for those types to test that. Just in case, I also included handling for `!`, since it appeared to be possible to call methods on it with angle brackets. I just couldn't verify the resulting suggestion, since dead-code analysis eliminates the code first.

This is my first exposure to Rust compiler internals, so please let me know if I'm taking the wrong approach here!

changelog: [`redundant_closure_for_method_calls`]: add angle brackets and substitute generic arguments in suggestion when needed
2022-11-22 09:20:50 +00:00
bors
e6c33e0054 Auto merge of - matthiaskrgr:rollup-gi1pdb0, r=matthiaskrgr
Rollup of 11 pull requests

Successful merges:

 -  (Pin::new_unchecked: discuss pinning closure captures)
 -  (Fix using `include_bytes` in pattern position)
 -  (Add a test case for async dyn* traits)
 -  (Split `MacArgs` in two.)
 -  (Probe + better error messsage for `need_migrate_deref_output_trait_object`)
 -  (Move tests)
 -  (Do not check transmute if has non region infer)
 -  (rustdoc: factor out common button CSS)
 -  (Migrate alias search result to CSS variables)
 -  (Make negative_impl and negative_impl_exists take the right types)
 -  (Update test's cfg-if dependency to 1.0)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2022-11-22 01:35:57 +00:00
xFrednet
aa66212e29
Cleanup rustc_tool_util and add a convenient macro for build.rs 2022-11-21 23:28:26 +01:00
Nicholas Nethercote
48b10feedb Split MacArgs in two.
`MacArgs` is an enum with three variants: `Empty`, `Delimited`, and `Eq`. It's
used in two ways:
- For representing attribute macro arguments (e.g. in `AttrItem`), where all
  three variants are used.
- For representing function-like macros (e.g. in `MacCall` and `MacroDef`),
  where only the `Delimited` variant is used.

In other words, `MacArgs` is used in two quite different places due to them
having partial overlap. I find this makes the code hard to read. It also leads
to various unreachable code paths, and allows invalid values (such as
accidentally using `MacArgs::Empty` in a `MacCall`).

This commit splits `MacArgs` in two:
- `DelimArgs` is a new struct just for the "delimited arguments" case. It is
  now used in `MacCall` and `MacroDef`.
- `AttrArgs` is a renaming of the old `MacArgs` enum for the attribute macro
  case. Its `Delimited` variant now contains a `DelimArgs`.

Various other related things are renamed as well.

These changes make the code clearer, avoids several unreachable paths, and
disallows the invalid values.
2022-11-22 09:04:15 +11:00
Oli Scherer
eb850aef96 Use as_closure helper method
Co-authored-by: lcnr <rust@lcnr.de>
2022-11-21 20:40:26 +00:00
Oli Scherer
595ae83855 Stop passing the self-type as a separate argument. 2022-11-21 20:39:46 +00:00
Oli Scherer
f60e43ee05 Fix clippy's missing substs 2022-11-21 20:39:29 +00:00
Oli Scherer
c7828221e3 Allow iterators instead of requiring slices that will get turned into iterators 2022-11-21 20:33:55 +00:00
Philipp Krones
6fce4691d5 Clippy: Don't import GenericParamDefKind 2022-11-21 21:05:06 +01:00
Philipp Krones
28fb084ec7 Fix declare_clippy_lint crate 2022-11-21 20:52:12 +01:00
Philipp Krones
46c5a5d234 Merge commit 'f4850f7292efa33759b4f7f9b7621268979e9914' into clippyup 2022-11-21 20:51:52 +01:00
bors
73efce9ee6 Auto merge of - sgued:missnamed-getters, r=llogiq
Add new lint  [`misnamed-getters`]

```
changelog: Add new lint  [`misnamed-getters`]
```

Closes 

The current lint matches all methods with a body of just one expression under the form `(&mut?)? <expr>.field` where field doesn't match the name of the method but there is a field of the same type in `<expr>` that matches the name. This allows matching nested structs, for example for newtype wrappers. This may cast the net a bit too wide and cause false positives. I'll run [clippy_lint_tester](https://github.com/mikerite/clippy_lint_tester) on the top crates to see how frequently false positives happen.

There also may be room for improvement by checking that the replacement field would work taking into account implementations of `Deref` and `DerefMut` even if the types don't exactly match but I don't know yet how this could be done.
2022-11-21 19:51:42 +00:00
Vadim Petrochenkov
ae8f75c6a3 Unreserve braced enum variants in value namespace 2022-11-21 22:40:06 +03:00
bors
f4850f7292 Auto merge of - flip1995:rustup, r=flip1995
Rustup

r? `@ghost`

It took >4 weeks, but I finally got to do the sync 🎉

changelog: none
2022-11-21 19:16:14 +00:00
Philipp Krones
05b914a92b
Fix custom ICE message test on windows 2022-11-21 20:15:50 +01:00
ozkanonur
5907e9155e
pass clippy sysroot env if given r=ozkanonur
Signed-off-by: ozkanonur <work@onurozkan.dev>
2022-11-21 20:02:20 +01:00
Philipp Krones
661f13ce3b
Bump nightly version -> 2022-11-21 2022-11-21 20:02:14 +01:00
Philipp Krones
25e98bf708
Bump Clippy version -> 0.1.67 2022-11-21 20:02:06 +01:00