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Rollup of 7 pull requests - #137236
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matthiaskrgr wants to merge 30 commits into
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Const-stabilizes `slice::as_flattened{,_mut}`:
```rust
// core::slice
impl<T, const N: usize> [[T; N]] {
pub const fn as_flattened(&self) -> &[T];
pub const fn as_flattened_mut(&mut self) -> &mut [T];
}
```
Tracking issue: rust-lang#95629
Requires separate libs-api FCP, as per rust-lang#95629 (comment).
Closesrust-lang#95629.When `Foo.field` or `Foo.method()` exprs are encountered, suggest `Foo::field` or `Foo::method()` when Foo is a type alias, not just a struct, trait, or module. Also rename test for this suggestion from issue-22692.rs to something more meaningful.
Suggest replacing `.` with `::` when encountering "expected value, found enum": - in a method-call expression and the method has the same name as a tuple variant - in a field-access expression and the field has the same name as a unit or tuple variant
…cro giving a type, make it also work when the rhs is a type alias, not just a struct.
…l` field in `LayoutData`. Also update comments that refered to BackendRepr::Uninhabited.
…turn ABI as wrapped type.
Add codegen test for uninhabited PassMode::Indirect return types.
* Order IDEs alphabetically so that manually searching for an IDE is easier, both when running `./x setup` and when editing the source code behind `./x setup` * Prepare for IDEs with spaces in their names * Allow explicitly typing 'none' for the IDE * Change capitalization of `Vscode` to the more standard `VsCode` * Make minor efficiency improvements * Add `'static` annotations where they apply
* Order items as the average of the two adaptors. Enables easier diffs. * Consistently apply #[inline]. * Implement FromInner<Vec<u8>> for bytes::Buf. * Implement Clone::clone_from for wtf8::Buf.
Co-authored-by: Jubilee <workingjubilee@gmail.com>
This was removed in rust-lang#114723
This was changed in rust-lang#132027
Added project-specific Zed IDE settings
This repository currently has project-specific VS Code IDE settings in `.vscode` and `compiler/rustc_codegen_cranelift/.vscode`. Now there are equivalent project-specific Zed IDE settings alongside those.
This fixes `rust-analyzer` not being able to properly handle this project.
Note that:
1. The contents of `src/tools/rust-analyzer/.vscode` could not be translated to Zed, as they aren't basic IDE settings.
2. One of the VS Code settings in `.vscode` has no corresponding setting in Zed, and so this has been noted like this:
```json
"_settings_only_in_vs_code_not_yet_in_zed": {
"git.detectSubmodulesLimit": 20
},
```…nieu Impl TryFrom<Vec<u8>> for String I think this is useful enough to have :) As a general question, is there any policy around adding "missing" trait implementations? (like adding `AsRef<T> for T` for std types), I mostly stumble upon them when using a lot of "impl Trait in argument position" like (`foo: impl Into<String>`)
…en, r=Amanieu
Stabilize const_slice_flatten
Const-stabilizes `slice::as_flattened{,_mut}`:
```rust
// core::slice
impl<T, const N: usize> [[T; N]] {
pub const fn as_flattened(&self) -> &[T];
pub const fn as_flattened_mut(&mut self) -> &mut [T];
}
```
Tracking issue: rust-lang#95629
Requires separate FCP, as per rust-lang#95629 (comment).
Closesrust-lang#95629.
```@rustbot``` modify labels: +T-libs-api
Happy new year!…_3, r=davidtwco
Suggest replacing `.` with `::` in more error diagnostics.
First commit makes the existing "help: use the path separator to refer to an item" also work when the base is a type alias, not just a trait/module/struct.
The existing unconditional `DefKind::Mod | DefKind::Trait` match arm is changed to a conditional `DefKind::Mod | DefKind::Trait | DefKind::TyAlias` arm that only matches if the `path_sep` suggestion-adding closure succeeds, so as not to stop the later `DefKind::TyAlias`-specific suggestions if the path-sep suggestion does not apply. This shouldn't change behavior for `Mod` or `Trait` (due to the default arm's `return false` etc).
This commit also updates `tests/ui/resolve/issue-22692.rs` to reflect this, and also renames it to something more meaningful.
This commit also makes the `bad_struct_syntax_suggestion` closure take `err` as a parameter instead of capturing it, since otherwise caused borrowing errors due to the change to using `path_sep` in a pattern guard.
<details> <summary> Type alias diagnostic example </summary>
```rust
type S = String;
fn main() {
let _ = S.new;
}
```
```diff
error[E0423]: expected value, found type alias `S`
--> diag7.rs:4:13
|
4 | let _ = S.new;
| ^
|
- = note: can't use a type alias as a constructor
+ help: use the path separator to refer to an item
+ |
+4 | let _ = S::new;
+ | ~~
```
</details>
Second commit adds some cases for `enum`s, where if there is a field/method expression where the field/method has the name of a unit/tuple variant, we assume the user intended to create that variant[^1] and suggest replacing the `.` from the field/method suggestion with a `::` path separator. If no such variant is found (or if the error is not a field/method expression), we give the existing suggestion that suggests adding `::TupleVariant(/* fields */)` after the enum.
<details> <summary> Enum diagnostic example </summary>
```rust
enum Foo {
A(u32),
B,
C { x: u32 },
}
fn main() {
let _ = Foo.A(42); // changed
let _ = Foo.B; // changed
let _ = Foo.D(42); // no change
let _ = Foo.D; // no change
let _ = Foo(42); // no change
}
```
```diff
error[E0423]: expected value, found enum `Foo`
--> diag8.rs:8:13
|
8 | let _ = Foo.A(42); // changed
| ^^^
|
note: the enum is defined here
--> diag8.rs:1:1
|
1 | / enum Foo {
2 | | A(u32),
3 | | B,
4 | | C { x: u32 },
5 | | }
| |_^
-help: you might have meant to use the following enum variant
- |
-8 | let _ = Foo::B.A(42); // changed
- | ~~~~~~
-help: alternatively, the following enum variant is available
+help: use the path separator to refer to a variant
|
-8 | let _ = (Foo::A(/* fields */)).A(42); // changed
- | ~~~~~~~~~~~~~~~~~~~~~~
+8 | let _ = Foo::A(42); // changed
+ | ~~
error[E0423]: expected value, found enum `Foo`
--> diag8.rs:9:13
|
9 | let _ = Foo.B; // changed
| ^^^
|
note: the enum is defined here
--> diag8.rs:1:1
|
1 | / enum Foo {
2 | | A(u32),
3 | | B,
4 | | C { x: u32 },
5 | | }
| |_^
-help: you might have meant to use the following enum variant
- |
-9 | let _ = Foo::B.B; // changed
- | ~~~~~~
-help: alternatively, the following enum variant is available
+help: use the path separator to refer to a variant
|
-9 | let _ = (Foo::A(/* fields */)).B; // changed
- | ~~~~~~~~~~~~~~~~~~~~~~
+9 | let _ = Foo::B; // changed
+ | ~~
error[E0423]: expected value, found enum `Foo`
--> diag8.rs:10:13
|
10 | let _ = Foo.D(42); // no change
| ^^^
|
note: the enum is defined here
--> diag8.rs:1:1
|
1 | / enum Foo {
2 | | A(u32),
3 | | B,
4 | | C { x: u32 },
5 | | }
| |_^
help: you might have meant to use the following enum variant
|
10 | let _ = Foo::B.D(42); // no change
| ~~~~~~
help: alternatively, the following enum variant is available
|
10 | let _ = (Foo::A(/* fields */)).D(42); // no change
| ~~~~~~~~~~~~~~~~~~~~~~
error[E0423]: expected value, found enum `Foo`
--> diag8.rs:11:13
|
11 | let _ = Foo.D; // no change
| ^^^
|
note: the enum is defined here
--> diag8.rs:1:1
|
1 | / enum Foo {
2 | | A(u32),
3 | | B,
4 | | C { x: u32 },
5 | | }
| |_^
help: you might have meant to use the following enum variant
|
11 | let _ = Foo::B.D; // no change
| ~~~~~~
help: alternatively, the following enum variant is available
|
11 | let _ = (Foo::A(/* fields */)).D; // no change
| ~~~~~~~~~~~~~~~~~~~~~~
error[E0423]: expected function, tuple struct or tuple variant, found enum `Foo`
--> diag8.rs:12:13
|
12 | let _ = Foo(42); // no change
| ^^^ help: try to construct one of the enum's variants: `Foo::A`
|
= help: you might have meant to construct the enum's non-tuple variant
note: the enum is defined here
--> diag8.rs:1:1
|
1 | / enum Foo {
2 | | A(u32),
3 | | B,
4 | | C { x: u32 },
5 | | }
| |_^
error: aborting due to 5 previous errors
```
</details>
[^1]: or if it's a field expression and a tuple variant, that they meant to refer the variant constructor.…bited, r=workingjubilee Do not ignore uninhabited types for function-call ABI purposes. (Remove BackendRepr::Uninhabited) Accepted MCP: rust-lang/compiler-team#832Fixesrust-lang#135802 Do not consider the inhabitedness of a type for function call ABI purposes. * Remove the [`rustc_abi::BackendRepr::Uninhabited`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_abi/enum.BackendRepr.html) variant * Instead calculate the `BackendRepr` of uninhabited types "normally" (as though they were not uninhabited "at the top level", but still considering inhabitedness of variants to determine enum layout, etc) * Add an `uninhabited: bool` field to [`rustc_abi::LayoutData`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_abi/struct.LayoutData.html) so inhabitedness of a `LayoutData` can still be queried when necessary (e.g. when determining if an enum variant needs a tag value allocated to it). This should not affect type layouts (size/align/field offset); this should only affect function call ABI, and only of uninhabited types. cc `@RalfJung`
…Denton Organize `OsString`/`OsStr` shims Synchronize the `bytes.rs` and `wtf8.rs` shims for `OsString`/`OsStr` so they're easier to diff between each other. This is mostly ordering items the same between the two. I tried to minimize moves and went for the average locations between the files. With them in the same order, it is clear that `FromInner<_>` is not implemented for `bytes::Buf` and `Clone::clone_from` is not implemented for `wtf8::Buf`, but they are for the other. Fix that. I added #[inline] to all inherent methods of the `OsString`/`OsStr` shims, because it seemed that was already the rough pattern. `bytes.rs` has more inlining than `wtf8.rs`, so I added the corresponding ones to `wtf8.rs`. Then, the common missing ones have no discernible pattern to me. They're not divided by non-allocating/allocating. Perhaps the pattern is that UTF-8 validation isn't inlined? Since these types are merely the inner values in `OsStr`/`OsString`, I put inline on all methods and let those public types dictate inlining. I have not inspected codegen or run benchmarks. Also, touch up some (private) documentation comments. r? ```@ChrisDenton```
…er-errors docs(dev): Update the feature-gate instructions `features_untracked` was removed in rust-lang#114723 features are now functions as of rust-lang#132027
matthiaskrgr
commented
Feb 18, 2025
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@bors r+ rollup=never p=5 |
bors
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Feb 18, 2025
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rust-log-analyzer
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Feb 18, 2025
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Successful merges:
.with::in more error diagnostics. #136344 (Suggest replacing.with::in more error diagnostics.)OsString/OsStrshims #137155 (OrganizeOsString/OsStrshims)r? @ghost
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