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out_of_scope_macro_calls: Detect calls inside attributes more precisely
Fixes https://github.com/rust-lang/rust/issues/126984.
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Show fnsig's unit output explicitly when there is output diff in diagnostics
Fixes #127263
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Use verbose suggestion for `ptr::null_mut()`
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offset_from, offset: clearly separate safety requirements the user needs to prove from corollaries that automatically follow
By landing https://github.com/rust-lang/rust/pull/116675 we decided that objects larger than `isize::MAX` cannot exist in the address space of a Rust program, which lets us simplify these rules.
For `offset_from`, we can even state that the *absolute* distance fits into an `isize`, and therefore exclude `isize::MIN`. This PR also changes Miri to treat an `isize::MIN` difference like the other isize-overflowing cases.
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Use verbose suggestion for changing arg type
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Use verbose style for argument removal suggestion
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Match ergonomics 2024: align with RFC again
- `&` matches `&mut` on old editions
- Add some more tests
r? ``@Nadrieril``
cc https://github.com/rust-lang/rust/issues/123076
``@rustbot`` label A-edition-2024 A-patterns
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Migrate `output-type-permutations` `run-make` test to rmake
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
try-job: x86_64-msvc
try-job: armhf-gnu
try-job: aarch64-apple
try-job: test-various
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Add `new_range_api` for RFC 3550
Initial implementation for #125687
This includes a `From<legacy::RangeInclusive> for RangeInclusive` impl for convenience, instead of the `TryFrom` impl from the RFC. Having `From` is highly convenient and the debug assert should find almost all misuses.
This includes re-exports of all existing `Range` types under `core::range`, plus the range-related traits (`RangeBounds`, `Step`, `OneSidedRange`) and the `Bound` enum.
Currently the iterators are just wrappers around the old range types.
Tracking issues:
- https://github.com/rust-lang/rust/issues/123741
- https://github.com/rust-lang/rust/issues/125687
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Improve dead code analysis
Fixes #120770
1. check impl items later if self ty is private although the trait method is public, cause we must use the ty firstly if it's private
2. mark the adt live if it appears in pattern, like generic argument, this implies the use of the adt
3. based on the above, we can handle the case that private adts impl Default, so that we don't need adding rustc_trivial_field_reads on Default, and the logic in should_ignore_item
r? ``@pnkfelix``
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This includes a `From<legacy::RangeInclusive> for RangeInclusive` impl for convenience, instead of the `TryFrom` impl from the RFC.
Having `From` is highly convenient and the assertion is unlikely to be a problem in practice.
This includes re-exports of all existing `Range` types under `core::range`, plus the range-related traits (`RangeBounds`, `Step`, `OneSidedRange`) and the `Bound` enum.
Currently the iterators are just wrappers around the old range types,
and most other trait impls delegate to the old rage types as well.
Also includes an `.iter()` shorthand for `.clone().into_iter()`
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Rollup of 7 pull requests
Successful merges:
- #124290 (DependencyList: removed outdated comment)
- #126709 (Migrate `include_bytes_deps`, `optimization-remarks-dir-pgo`, `optimization-remarks-dir`, `issue-40535` and `rmeta-preferred` `run-make` tests to rmake)
- #127214 (Use the native unwind function in miri where possible)
- #127320 (Update windows-bindgen to 0.58.0)
- #127349 (Tweak `-1 as usize` suggestion)
- #127352 (coverage: Rename `mir::coverage::BranchInfo` to `CoverageInfoHi`)
- #127359 (Improve run make llvm ident code)
r? `@ghost`
`@rustbot` modify labels: rollup
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r=jieyouxu
Improve run make llvm ident code
I took the commits that are not blocking https://github.com/rust-lang/rust/pull/127237.
r? `@Kobzol`
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Tweak `-1 as usize` suggestion
When writing a negative unsigned integer literal, use a verbose suggestion and account for `as` casting.
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Migrate `include_bytes_deps`, `optimization-remarks-dir-pgo`, `optimization-remarks-dir`, `issue-40535` and `rmeta-preferred` `run-make` tests to rmake
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
Needs BSD tryjob.
try-job: aarch64-apple
try-job: x86_64-msvc
try-job: armhf-gnu
try-job: test-various
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Match ergonomics 2024: Implement TC's match ergonomics proposal
Under gate `ref_pat_eat_one_layer_2024_structural`. Enabling `ref_pat_eat_one_layer_2024` at the same time allows the union of what the individual gates allow. `@traviscross`
r? `@Nadrieril`
cc https://github.com/rust-lang/rust/issues/123076
`@rustbot` label A-edition-2024 A-patterns
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crashes: add latest
r? `@jieyouxu`
`@bors` rollup=iffy
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simd_bitmask intrinsic: add a non-power-of-2 multi-byte example
r? `@calebzulawski` `@workingjubilee`
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When writing a negative unsigned integer literal, use a verbose suggestion and account for `as` casting.
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Remove a use of `StructuredDiag`, which is incompatible with automatic error tainting and error translations
fixes #127219
I want to remove all of `StructuredDiag`, but it's a bit more involved as it is also used from the `ItemCtxt`, which doesn't support tainting yet.
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Tweak some structured suggestions to be more verbose and accurate
Addressing some issues I found while working on #127282.
```
error: this URL is not a hyperlink
--> $DIR/auxiliary/include-str-bare-urls.md:1:11
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LL | HEADS UP! https://example.com MUST SHOW UP IN THE STDERR FILE!
| ^^^^^^^^^^^^^^^^^^^
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= note: bare URLs are not automatically turned into clickable links
note: the lint level is defined here
--> $DIR/include-str-bare-urls.rs:14:9
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LL | #![deny(rustdoc::bare_urls)]
| ^^^^^^^^^^^^^^^^^^
help: use an automatic link instead
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LL | HEADS UP! <https://example.com> MUST SHOW UP IN THE STDERR FILE!
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```
```
error[E0384]: cannot assign twice to immutable variable `v`
--> $DIR/assign-imm-local-twice.rs:7:5
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LL | v = 1;
| ----- first assignment to `v`
LL | println!("v={}", v);
LL | v = 2;
| ^^^^^ cannot assign twice to immutable variable
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help: consider making this binding mutable
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LL | let mut v: isize;
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```
```
error[E0393]: the type parameter `Rhs` must be explicitly specified
--> $DIR/issue-22560.rs:9:23
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LL | trait Sub<Rhs=Self> {
| ------------------- type parameter `Rhs` must be specified for this
...
LL | type Test = dyn Add + Sub;
| ^^^
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= note: because of the default `Self` reference, type parameters must be specified on object types
help: set the type parameter to the desired type
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LL | type Test = dyn Add + Sub<Rhs>;
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```
```
error[E0596]: cannot borrow `v` as mutable, as it is not declared as mutable
--> $DIR/issue-33819.rs:4:34
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LL | Some(ref v) => { let a = &mut v; },
| ^^^^^^ cannot borrow as mutable
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help: try removing `&mut` here
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LL - Some(ref v) => { let a = &mut v; },
LL + Some(ref v) => { let a = v; },
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```
```
help: remove the invocation before committing it to a version control system
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LL - dbg!();
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```
```
error[E0308]: mismatched types
--> $DIR/issue-39974.rs:1:21
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LL | const LENGTH: f64 = 2;
| ^ expected `f64`, found integer
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help: use a float literal
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LL | const LENGTH: f64 = 2.0;
| ++
```
```
error[E0529]: expected an array or slice, found `Vec<i32>`
--> $DIR/match-ergonomics.rs:8:9
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LL | [&v] => {},
| ^^^^ pattern cannot match with input type `Vec<i32>`
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help: consider slicing here
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LL | match x[..] {
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```
```
error[E0609]: no field `0` on type `[u32; 1]`
--> $DIR/parenthesized-deref-suggestion.rs:10:21
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LL | (x as [u32; 1]).0;
| ^ unknown field
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help: instead of using tuple indexing, use array indexing
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LL | (x as [u32; 1])[0];
| ~ +
```
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Reject SmartPointer constructions not serving the purpose
Tracking issue: #123430
With this PR we will reject a row of malformed `SmartPointer` implementor candidates.
cc `@Darksonn` `@davidtwco` for context.
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Remove some duplicated tests
probably some parallel PR development that happened here, copying over the same examples from issues.
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Disable dead variant removal for `#[repr(C)]` enums.
This prevents removing dead branches from a `#[repr(C)]` enum (they now get discriminants allocated as if they were inhabited).
Implementation notes: ABI of something like
```rust
#[repr(C)]
enum Foo {
Foo(!),
}
```
is still `Uninhabited`, but its layout is now computed as if all the branches were inhabited.
This seemed to me like a proper way to do it, especially given that ABI sanity check explicitly asserts that type-level uninhabitedness implies ABI uninhabitedness.
This probably needs some sort of FCP (given that it changes `#[repr(C)]` layout, which is a stable guarantee), but I’m not sure how to call for one or which team is the most relevant.
See https://github.com/rust-lang/unsafe-code-guidelines/issues/500.
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