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port `#[debugger_visualizer]` to the new attribute system
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Add an attribute to check the number of lanes in a SIMD vector after monomorphization
Allows std::simd to drop the `LaneCount<N>: SupportedLaneCount` trait and maintain good error messages.
Also, extends rust-lang/rust#145967 by including spans in layout errors for all ADTs.
r? ``@RalfJung``
cc ``@workingjubilee`` ``@programmerjake``
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monomorphization
Unify zero-length and oversized SIMD errors
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Co-authored-by: Anne Stijns <anstijns@gmail.com>
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Clean up `ty::Dynamic`
1. As a follow-up to PR rust-lang/rust#143036, remove `DynKind` entirely.
2. Inside HIR ty lowering, consolidate modules `dyn_compatibility` and `lint` into `dyn_trait`
* `dyn_compatibility` wasn't about dyn compatibility itself, it's about lowering trait object types
* `lint` contained dyn-Trait-specific diagnostics+lints only
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Make `AssocItem` aware of its impl kind
The general goal is to have fewer query dependencies by making `AssocItem` aware of its parent impl kind (inherent vs. trait) without having to query the parent def_kind.
See individual commits.
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Convert `no_std` and `no_core` to the new attribute infrastructure
r? ```@oli-obk```
Also added a test for these, since we didn't have any and I was kind of surprised new diagnostics didn't break anything hehe
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r=jdonszelmann,ralfjung,traviscross
Implement `#[rustc_align_static(N)]` on `static`s
Tracking issue: https://github.com/rust-lang/rust/issues/146177
```rust
#![feature(static_align)]
#[rustc_align_static(64)]
static SO_ALIGNED: u64 = 0;
```
We need a different attribute than `rustc_align` because unstable attributes are tied to their feature (we can't have two unstable features use the same unstable attribute). Otherwise this uses all of the same infrastructure as `#[rustc_align]`.
r? `@traviscross`
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We need a different attribute than `rustc_align` because unstable attributes are
tied to their feature (we can't have two unstable features use the same
unstable attribute). Otherwise this uses all of the same infrastructure
as `#[rustc_align]`.
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On unused binding or binding not present in all patterns, suggest potential typo of unit struct/variant or const
When encountering an or-pattern with a binding not available in all patterns, look for consts and unit struct/variants that have similar names as the binding to detect typos.
```
error[E0408]: variable `Ban` is not bound in all patterns
--> $DIR/binding-typo.rs:22:9
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LL | (Foo, _) | (Ban, Foo) => {}
| ^^^^^^^^ --- variable not in all patterns
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| pattern doesn't bind `Ban`
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help: you might have meant to use the similarly named unit variant `Bar`
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LL - (Foo, _) | (Ban, Foo) => {}
LL + (Foo, _) | (Bar, Foo) => {}
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```
For items that are not in the immedate scope, suggest the full path for them:
```
error[E0408]: variable `Non` is not bound in all patterns
--> $DIR/binding-typo-2.rs:51:16
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LL | (Non | Some(_))=> {}
| --- ^^^^^^^ pattern doesn't bind `Non`
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| variable not in all patterns
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help: you might have meant to use the similarly named unit variant `None`
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LL - (Non | Some(_))=> {}
LL + (core::option::Option::None | Some(_))=> {}
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```
When encountering a typo in a pattern that gets interpreted as an unused binding, look for unit struct/variant of the same type as the binding:
```
error: unused variable: `Non`
--> $DIR/binding-typo-2.rs:36:9
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LL | Non => {}
| ^^^
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help: if this is intentional, prefix it with an underscore
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LL | _Non => {}
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help: you might have meant to pattern match on the similarly named variant `None`
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LL - Non => {}
LL + std::prelude::v1::None => {}
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```
Suggest constant on unused binding in a pattern
```
error: unused variable: `Batery`
--> $DIR/binding-typo-2.rs:110:9
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LL | Batery => {}
| ^^^^^^
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help: if this is intentional, prefix it with an underscore
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LL | _Batery => {}
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help: you might have meant to pattern match on the similarly named constant `Battery`
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LL | Battery => {}
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```
Fix rust-lang/rust#51976.
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add span to struct pattern rest (..)
Struct pattern rest (`..`) did not retain span information compared to normal fields. This patch adds span information for it.
The motivation of this patch comes from when I implemented this PR for Clippy: https://github.com/rust-lang/rust-clippy/pull/15000#discussion_r2134145163
It is possible to get the span of the Et cetera in a bit roundabout way, but I thought this would be nicer.
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```
error: unused variable: `Batery`
--> $DIR/binding-typo-2.rs:110:9
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LL | Batery => {}
| ^^^^^^
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help: if this is intentional, prefix it with an underscore
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LL | _Batery => {}
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help: you might have meant to pattern match on the similarly named constant `Battery`
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LL | Battery => {}
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```
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When encountering a typo in a pattern that gets interpreted as an unused binding, look for unit struct/variant of the same type as the binding:
```
error: unused variable: `Non`
--> $DIR/binding-typo-2.rs:36:9
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LL | Non => {}
| ^^^
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help: if this is intentional, prefix it with an underscore
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LL | _Non => {}
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help: you might have meant to pattern match on the similarly named variant `None`
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LL - Non => {}
LL + std::prelude::v1::None => {}
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```
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Add new `doc(attribute = "...")` attribute
Fixes rust-lang/rust#141123.
The implementation and purpose of this new `#[doc(attribute = "...")]` attribute is very close to `#[doc(keyword = "...")]`. Which means that luckily for us, most of the code needed was already in place and `@Noratrieb` nicely wrote a first draft that helped me implement this new attribute very fast.
Now with all this said, there is one thing I didn't do yet: adding a `rustdoc-js-std` test. I added GUI tests with search results for attributes so should be fine but I still plan on adding one for it once documentation for builtin attributes will be written into the core/std libs.
You can test it [here](https://rustdoc.crud.net/imperio/doc-attribute-attribute/foo/index.html).
cc `@Noratrieb` `@Veykril`
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with namespace
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`is_primitive`, `is_keyword` and `is_attribute` methods
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add a flag to codegen fn attrs for foreign items
r? `@ghost`
refiled to rerun CI
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port `sanitize` attribute to the new parsing infrastructure
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Only scan each definition once for dead-code.
r? `@ghost`
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This uses the feature gate for
https://github.com/rust-lang/rust/issues/143352, but is described in
https://github.com/rust-lang/rfcs/pull/3820 which is strongly tied to
the experiment.
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Port must_use to the new target checking
This PR ports `must_use` to the new target checking logic
This also adds a tool-only suggestion to remove attributes on invalid targets, as to not immediately undo the work of https://github.com/rust-lang/rust/pull/145274
r? `@jdonszelmann`
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Remove the `#[no_sanitize]` attribute in favor of `#[sanitize(xyz = "on|off")]`
This came up during the sanitizer stabilization (rust-lang/rust#123617). Instead of a `#[no_sanitize(xyz)]` attribute, we would like to have a `#[sanitize(xyz = "on|off")]` attribute, which is more powerful and allows to be extended in the future (instead
of just focusing on turning sanitizers off). The implementation is done according to what was [discussed on Zulip](https://rust-lang.zulipchat.com/#narrow/channel/343119-project-exploit-mitigations/topic/Stabilize.20the.20.60no_sanitize.60.20attribute/with/495377292)).
The new attribute also works on modules, traits and impl items and thus enables usage as the following:
```rust
#[sanitize(address = "off")]
mod foo {
fn unsanitized(..) {}
#[sanitize(address = "on")]
fn sanitized(..) {}
}
trait MyTrait {
#[sanitize(address = "off")]
fn unsanitized_default(..) {}
}
#[sanitize(thread = "off")]
impl MyTrait for () {
...
}
```
r? ```@rcvalle```
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This removes the #[no_sanitize] attribute, which was behind an unstable
feature named no_sanitize. Instead, we introduce the sanitize attribute
which is more powerful and allows to be extended in the future (instead
of just focusing on turning sanitizers off).
This also makes sanitize(kernel_address = ..) attribute work with
-Zsanitize=address
To do it the same as how clang disables address sanitizer, we now
disable ASAN on sanitize(kernel_address = "off") and KASAN on
sanitize(address = "off").
The same was added to clang in https://reviews.llvm.org/D44981.
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This change implements the #[sanitize(..)] attribute, which opts to
replace the currently unstable #[no_sanitize]. Essentially the new
attribute works similar as #[no_sanitize], just with more flexible
options regarding where it is applied. E.g. it is possible to turn
a certain sanitizer either on or off:
`#[sanitize(address = "on|off")]`
This attribute now also applies to more places, e.g. it is possible
to turn off a sanitizer for an entire module or impl block:
```rust
\#[sanitize(address = "off")]
mod foo {
fn unsanitized(..) {}
#[sanitize(address = "on")]
fn sanitized(..) {}
}
\#[sanitize(thread = "off")]
impl MyTrait for () {
...
}
```
This attribute is enabled behind the unstable `sanitize` feature.
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