bors [Wed, 30 Nov 2022 12:44:45 +0000 (12:44 +0000)]
Auto merge of #9989 - xFrednet:9986-move-safety-thingy, r=flip1995
Move `unnecessary_unsafety_doc` to `pedantic`
This lint was added in #9822. I like the idea, but also agree with #9986 as well. I think it should at least not be warn-by-default. This is one of these cases, where I'd like a group between pedantic and restriction. But I believe that users using `#![warn(clippy::pedantic)]` will know how to enable the lint if they disagree with it.
---
Since the lint is new:
changelog: none
r? `@flip1995` since I'd suggest back porting this, the original PR was merged 16 days ago.
Closes: #9986 (While it doesn't address everything, I believe that this is the best compromise)
bors [Wed, 30 Nov 2022 11:13:09 +0000 (11:13 +0000)]
Auto merge of #104905 - compiler-errors:normalization-changes, r=spastorino
Some initial normalization method changes
1. Rename `AtExt::normalize` to `QueryNormalizeExt::query_normalize` (using the `QueryNormalizer`)
2. Introduce `NormalizeExt::normalize` to replace `partially_normalize_associated_types_in` (using the `AssocTypeNormalizer`)
3. Rename `FnCtxt::normalize_associated_types_in` to `FnCtxt::normalize`
4. Remove some unused other normalization fns in `Inherited` and `FnCtxt`
Also includes one drive-by where we're no longer creating a `FnCtxt` inside of `check_fn`, but passing it in. This means we don't need such weird `FnCtxt` construction logic.
bors [Tue, 29 Nov 2022 11:16:01 +0000 (11:16 +0000)]
Auto merge of #9975 - xFrednet:0000-refutable-slice-pedantic, r=llogiq
Move `index_refutable_slice` to `pedantic`
During the creation, I out this lint into the nursery group to let it run in the wild before moving it to a commonly used group. This move never happened until now, though. It should be safe, as Clippy and I have been using it for months and there are no open issues for is :)
---
changelog: Move `index_refutable_slice` to `pedantic` (Now warn-by-default)
[#9975](https://github.com/rust-lang/rust-clippy/pull/9975)
bors [Mon, 28 Nov 2022 17:22:36 +0000 (17:22 +0000)]
Auto merge of #9865 - nyurik:allow-mixed, r=xFrednet
Add allow-mixed-uninlined-format-args config
Implement `allow-mixed-uninlined-format-args` config param to change the behavior of the `uninlined_format_args` lint. Now it is a part of `style` per [Zulip chat](https://rust-lang.zulipchat.com/#narrow/stream/257328-clippy/topic/.60uninlined_format_args.60.20category), and won't propose inlining in case of a mixed usage, e.g. `print!("{} {}", var, 1+2)`. If the user sets `allow-mixed-uninlined-format-args` config param to `false`, the lint would behave like it did before -- proposing to inline args even in the mixed case.
---
changelog: [`uninlined_format_args`]: Added a new config `allow-mixed-uninlined-format-args` to allow the lint, if only some arguments can be inlined
[#9865](https://github.com/rust-lang/rust-clippy/pull/9865)
changelog: Moved [`uninlined_format_args`] to `style` (Now warn-by-default)
[#9865](https://github.com/rust-lang/rust-clippy/pull/9865)
Yuri Astrakhan [Sun, 27 Nov 2022 15:12:51 +0000 (10:12 -0500)]
Add allow-mixed-uninlined-format-args config
Implement `allow-mixed-uninlined-format-args` config param to change the behavior of the `uninlined_format_args` lint. Now it is a part of `style`, and won't propose inlining in case of a mixed usage, e.g. `print!("{} {}", var, 1+2)`. If the user sets allow-mixed-uninlined-format-args config param to `false`, then it would behave like before, proposing to inline args even in the mixed case.
This does not necessarily catch all occurences, as doing so would require checking all expressions in the entire source which seems rather expensive. Instead what the lint does is it checks items, statements and the tail expression of blocks for safety comments, then checks if those comments are necessary or not, then linting for the unnecessary ones.
I kept the tests in one file to check that the lints do not clash with each other.
bors [Thu, 24 Nov 2022 20:29:13 +0000 (20:29 +0000)]
Auto merge of #103693 - 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.
bors [Thu, 24 Nov 2022 17:14:42 +0000 (17:14 +0000)]
Auto merge of #104321 - 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
}
I would get the following with the latest stable compiler (on Windows):
```
4: async_codegen::b::async_fn$0
at .\src\lib.rs:10
5: core::future::from_generator::impl$1::poll<enum2$<async_codegen::b::async_fn_env$0> >
at /rustc/897e37553bba8b42751c67658967889d11ecd120\library\core\src\future\mod.rs:91
6: async_codegen::a::async_fn$0
at .\src\lib.rs:4
7: core::future::from_generator::impl$1::poll<enum2$<async_codegen::a::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::b::async_fn$0
at .\src\lib.rs:10
4: async_codegen::a::async_fn$0
at .\src\lib.rs:4
```
Arpad Borsos [Fri, 18 Nov 2022 21:56:22 +0000 (22:56 +0100)]
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.
bors [Tue, 22 Nov 2022 17:21:23 +0000 (17:21 +0000)]
Auto merge of #9750 - 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
bors [Tue, 22 Nov 2022 12:50:08 +0000 (12:50 +0000)]
Auto merge of #9796 - smoelius:issue-9771, r=flip1995
Fix #9771 (`unnecessary_to_owned` false positive)
Fixes #9771
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
bors [Tue, 22 Nov 2022 10:17:09 +0000 (10:17 +0000)]
Auto merge of #103578 - 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.
Fixes #7746. 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:
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
bors [Tue, 22 Nov 2022 01:35:57 +0000 (01:35 +0000)]
Auto merge of #104696 - matthiaskrgr:rollup-gi1pdb0, r=matthiaskrgr
Rollup of 11 pull requests
Successful merges:
- #103396 (Pin::new_unchecked: discuss pinning closure captures)
- #104416 (Fix using `include_bytes` in pattern position)
- #104557 (Add a test case for async dyn* traits)
- #104559 (Split `MacArgs` in two.)
- #104597 (Probe + better error messsage for `need_migrate_deref_output_trait_object`)
- #104656 (Move tests)
- #104657 (Do not check transmute if has non region infer)
- #104663 (rustdoc: factor out common button CSS)
- #104666 (Migrate alias search result to CSS variables)
- #104674 (Make negative_impl and negative_impl_exists take the right types)
- #104692 (Update test's cfg-if dependency to 1.0)
`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.
bors [Mon, 21 Nov 2022 19:51:42 +0000 (19:51 +0000)]
Auto merge of #9770 - sgued:missnamed-getters, r=llogiq
Add new lint [`misnamed-getters`]
```
changelog: Add new lint [`misnamed-getters`]
```
Closes #9769
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.
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