Drop an unnecessary intermediate variable
Neither does it shorten the code nor does it provide a helpful name.
`@rustbot` modify labels +C-cleanup +T-compiler
r? `@varkor`
Fix suggestion to introduce explicit lifetime
Addresses #81650
Error message after fix:
```
error[E0311]: the parameter type `T` may not live long enough
--> src/main.rs:25:11
|
24 | fn play_with<T: Animal + Send>(scope: &Scope, animal: T) {
| -- help: consider adding an explicit lifetime bound...: `T: 'a +`
25 | scope.spawn(move |_| {
| ^^^^^
|
note: the parameter type `T` must be valid for the anonymous lifetime #2 defined on the function body at 24:1...
--> src/main.rs:24:1
|
24 | fn play_with<T: Animal + Send>(scope: &Scope, animal: T) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...so that the type `[closure@src/main.rs:25:17: 27:6]` will meet its required lifetime bounds
--> src/main.rs:25:11
|
25 | scope.spawn(move |_| {
| ^^^^^
```
Fix doc test for Vec::retain(), now passes clippy::eval_order_dependence
Doc test for Vec::retain() works correctly but is flagged by clippy::eval_order_dependence. Fix avoids the issue by using an iterator instead of an index.
Rollup of 10 pull requests
Successful merges:
- #79775 (Fix injected errors when running doctests on a crate named after a keyword)
- #81012 (Stabilize the partition_point feature)
- #81479 (Allow casting mut array ref to mut ptr)
- #81506 (HWAddressSanitizer support)
- #81741 (Increment `self.index` before calling `Iterator::self.a.__iterator_ge…)
- #81850 (use RWlock when accessing os::env)
- #81911 (GAT/const_generics: Allow with_opt_const_param to return GAT param def_id)
- #82022 (Push a `char` instead of a `str` with len one into a String)
- #82023 (Remove unnecessary lint allow attrs on example)
- #82030 (Use `Iterator::all` instead of open-coding it)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
GAT/const_generics: Allow with_opt_const_param to return GAT param def_id
Fixes#75415Fixes#79666
cc ```@lcnr```
I've absolutely no idea who to r? for this...
use RWlock when accessing os::env
Multiple threads modifying the current process environment is fairly uncommon. Optimize for the more common read case.
r? ````@m-ou-se````
Increment `self.index` before calling `Iterator::self.a.__iterator_ge…
…`t_unchecked` in `Zip` `TrustedRandomAccess` specialization
Otherwise if `Iterator::self.a.__iterator_get_unchecked` panics the
index would not have been incremented yet and another call to
`Iterator::next` would read from the same index again, which is not
allowed according to the API contract of `TrustedRandomAccess` for
`!Clone`.
Fixes https://github.com/rust-lang/rust/issues/81740
Allow casting mut array ref to mut ptr
Allow casting mut array ref to mut ptr
We now allow two new casts:
- mut array reference to mut ptr. Example:
let mut x: [usize; 2] = [0, 0];
let p = &mut x as *mut usize;
We allow casting const array references to const pointers so not
allowing mut references to mut pointers was inconsistent.
- mut array reference to const ptr. Example:
let mut x: [usize; 2] = [0, 0];
let p = &mut x as *const usize;
This was similarly inconsistent as we allow casting mut references to
const pointers.
Existing test 'vector-cast-weirdness' updated to test both cases.
Fixes#24151
Try fast_reject::simplify_type in coherence before doing full check
This is a reattempt at landing #69010 (by `@jonas-schievink).` The change adds a fast path for coherence checking to see if there's no way for types to unify since full coherence checking can be somewhat expensive.
This has big effects on code generated by the [`windows`](https://github.com/microsoft/windows-rs) which in some cases spends as much as 20% of compilation time in the `specialization_graph_of` query. In local benchmarks this took a compilation that previously took ~500 seconds down to ~380 seconds.
This is surely not going to make a difference on much smaller crates, so the question is whether it will have a negative impact. #69010 was closed because some of the perf suite crates did show small regressions.
Additional discussion of this issue is happening [here](https://rust-lang.zulipchat.com/#narrow/stream/247081-t-compiler.2Fperformance/topic/windows-rs.20perf).
Rollup of 16 pull requests
Successful merges:
- #79983 (fix indefinite article in cell.rs)
- #81831 (Don't display `mut` in arguments for functions documentation)
- #81947 (Relax ItemCtxt::to_ty lifetime)
- #81954 (RELEASES.md 1.50: Group platform support notes together)
- #81955 (bootstrap: Locate llvm-dwp based on llvm-config bindir)
- #81959 (Fix assosiated typo)
- #81964 (Fix documentation not showing on localStorage error)
- #81968 (bootstrap: fix wrong docs installation path)
- #81990 (Make suggestion of changing mutability of arguments broader)
- #81994 (Improve long explanation for E0542 and E0546)
- #81997 (dist: include src/build_helper as part of the crate graph for rustc-dev)
- #82003 (Stack probes: fix error message)
- #82004 (clean up clean::Static struct)
- #82011 (Fix private intra-doc warnings on associated items)
- #82013 (Tell user how to fix CI file being not up to date)
- #82017 (Fix typo in mod.rs)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Fix private intra-doc warnings on associated items
The issue was that the `kind, id` override was previously only being
considered for the disambiguator check, not the privacy check. This uses
the same ID for both.
Fixes https://github.com/rust-lang/rust/issues/81981.
r? ``@max-heller``
clean up clean::Static struct
Having a `String` for the expression didn't make much sense, and even less when it's actually not used (except in json so I kept it).
r? ``@jyn514``
dist: include src/build_helper as part of the crate graph for rustc-dev
The build_helper dependency is used to build the compiler/rustc_llvm build script.
Since it was missing, it wasn't possible to really use rustc-dev to
build, see for instance: https://github.com/rust-analyzer/rust-analyzer/issues/7589.
Make suggestion of changing mutability of arguments broader
Fix#81421
Previously rustc tries to emit the suggestion of changing mutablity unless `!trait_ref.has_infer_types_or_consts() && self.predicate_can_apply(obligation.param_env, trait_ref)` and this led to some false negatives to occur.
bootstrap: Locate llvm-dwp based on llvm-config bindir
Fixes#81949.
Tested by successfully building 1.50.0 pre-release, which is where I originally hit the issue (https://internals.rust-lang.org/t/rust-1-50-0-pre-release-testing/14012/4?u=dtolnay). Tested both with and without prebuilt LLVM. The check for dry_run is necessary in the non-prebuilt case because the llvm-config built by bootstrap won't exist yet.
BTreeMap: disentangle Drop implementation from IntoIter
No longer require every `BTreeMap` to dig up its last leaf edge before dying. This speeds up the `clone_` benchmarks by 25% for normal keys and values (far less for huge values).
r? `@Mark-Simulacrum`
The issue was that the `kind, id` override was previously only being
considered for the disambiguator check, not the privacy check. This uses
the same ID for both.
Unfortunately, this can't currently be tested. The problem is that we
need the file to be compiled first to then be used as dependency, which
cannot be done currently unfortunately in the rustdoc test suites.
Example:
```rust
// name this file "foo.rs"
/// ```
/// let x = foo::foo();
/// ```
pub fn foo() {}
```
If you run `rustdoc --test foo.rs`, you'll get:
```
running 1 test
test foo.rs - foo (line 1) ... FAILED
failures:
---- foo.rs - foo (line 1) stdout ----
error[E0463]: can't find crate for `foo`
--> foo.rs:0:1
|
2 | extern crate foo;
| ^^^^^^^^^^^^^^^^^ can't find crate
```
If a test were possible, it would look something like
````rust
#![crate_name = "mod"]
#![crate_type = "lib"]
//! ```
//! // NOTE: requires that the literal string 'mod' appears in the doctest for
//! // the bug to appear
//! assert_eq!(1, 1);
//! ```
````
