bootstrap: Fix compile error: unused-mut
Compile errors:
```
Compiling bootstrap v0.0.0 (/home/hev/rust/rust/src/bootstrap)
error: variable does not need to be mutable
--> config.rs:1312:17
|
1312 | let mut build_target = config
| ----^^^^^^^^^^^^
| |
| help: remove this `mut`
|
= note: `-D unused-mut` implied by `-D warnings`
error: could not compile `bootstrap` (lib) due to previous error
```
rustdoc: catch and don't blow up on impl Trait cycles
Fixes#110629
An odd feature of Rust is that `Foo` is invalid, but `Bar` is okay:
type Foo<'a, 'b> = Box<dyn PartialEq<Foo<'a, 'b>>>;
type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>>;
To get it right, track every time rustdoc descends into a type alias, so if it shows up twice, it can be write the path instead of infinitely expanding it.
Don't accidentally ignore all output in `tests/run-make/coverage-reports` diffs
Because the literal pipe `|` character was not escaped, these regexes ended up accidentally ignoring every line in the coverage report output, so the tests would not fail even if the output was wrong.
`inline(always)` for `lt`/`le`/`ge`/`gt` on integers and floats
I happened to notice one of these not getting inlined as part of `Range::next` in <https://rust.godbolt.org/z/4WKWWxj1G>
```rust
bb1: {
StorageLive(_5);
_6 = &mut _4;
StorageLive(_21);
StorageLive(_14);
StorageLive(_15);
_15 = &((*_6).0: usize);
StorageLive(_16);
_16 = &((*_6).1: usize);
_14 = <usize as PartialOrd>::lt(move _15, move _16) -> bb7;
}
```
So since a call for something that's just one instruction is never the right choice, `#[inline(always)]` seems appropriate, like we have it on things like the rotate methods on integers.
Rollup of 7 pull requests
Successful merges:
- #110586 (Fix Unreadable non-UTF-8 output on localized MSVC)
- #110652 (Add test for warning-free builds of `core` under `no_global_oom_handling`)
- #110973 (improve error notes for packed struct reference diagnostic)
- #110981 (Move most rustdoc-ui tests into subdirectories)
- #110983 (rustdoc: Get `repr` information through `AdtDef` for foreign items)
- #110984 (Do not resolve anonymous lifetimes in consts to be static.)
- #110997 (Improve internal field comments on `slice::Iter(Mut)`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
An odd feature of Rust is that `Foo` is invalid, but `Bar` is okay:
type Foo<'a, 'b> = Box<dyn PartialEq<Foo<'a, 'b>>>;
type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>>;
To get it right, track every time rustdoc descends into a type alias,
so if it shows up twice, it can be write the path instead of
infinitely expanding it.
Improve internal field comments on `slice::Iter(Mut)`
I wrote these in a previous PR that I ended up withdrawing, so might as well submit them separately.
`@bors` rollup=always
rustdoc: Get `repr` information through `AdtDef` for foreign items
As suggested by `@notriddle,` this approach works too. The only downside is that the display of the original attribute isn't kept, but I think it's an acceptable downside.
r? `@notriddle`
Move most rustdoc-ui tests into subdirectories
This makes it easier to know where to add a new test, and makes the top-level directory less overwhelming.
Add test for warning-free builds of `core` under `no_global_oom_handling`
`tests/run-make/alloc-no-oom-handling` tests that `alloc` under `no_global_oom_handling` builds and is warning-free.
Do the same for `core` to prevent issues such as [1].
Link: https://github.com/rust-lang/rust/pull/110649 [1]
Fix Unreadable non-UTF-8 output on localized MSVC
Fixes#35785 by converting non UTF-8 linker output to Unicode using the OEM code page.
Before:
```text
= note: Non-UTF-8 output: LINK : fatal error LNK1181: cannot open input file \'m\x84rchenhaft.obj\'\r\n
```
After:
```text
= note: LINK : fatal error LNK1181: cannot open input file 'märchenhaft.obj'
```
The difference is more dramatic if using a non-ascii language pack for Windows.
Remove `QueryEngine` trait
This removes the `QueryEngine` trait and `Queries` from `rustc_query_impl` and replaced them with function pointers and fields in `QuerySystem`. As a side effect `OnDiskCache` is moved back into `rustc_middle` and the `OnDiskCache` trait is also removed.
This has a couple of benefits.
- `TyCtxt` is used in the query system instead of the removed `QueryCtxt` which is larger.
- Function pointers are more flexible to work with. A variant of https://github.com/rust-lang/rust/pull/107802 is included which avoids the double indirection. For https://github.com/rust-lang/rust/pull/108938 we can name entry point `__rust_end_short_backtrace` to avoid some overhead. For https://github.com/rust-lang/rust/pull/108062 it avoids the duplicate `QueryEngine` structs.
- `QueryContext` now implements `DepContext` which avoids many `dep_context()` calls in `rustc_query_system`.
- The `rustc_driver` size is reduced by 0.33%, hopefully that means some bootstrap improvements.
- This avoids the unsafe code around the `QueryEngine` trait.
r? `@cjgillot`
bootstrap: Unify test argument handling
Fixes#104198. Does *not* help with https://github.com/rust-lang/rust/issues/80124 because I couldn't figure out a reasonable way to omit `--lib` only for `panic_abort` and not other `std` dependencies.
- Remove unnecessary `test_kind` field and `TestKind` struct. These are just subsets of the existing `builder.kind` / `Kind` struct.
- Add a new `run_cargo_test` function which handles passing arguments to cargo based on `builder.config`
- Switch all Steps in `mod test` to `run_cargo_test` where possible
- Combine several steps into one `CrateBootstrap` step. These tests all do the same thing, just with different crate names.
- Fix `x test --no-doc`. This is much simpler after the refactors mentioned earlier, but I'm happy to split it into a separate PR if desired. Before, this would panic a lot because steps forgot to pass `--lib`.
- Use `cargo metadata` to determine whether a crate has a library
package or not
- Collect metadata for all workspaces, not just the root workspace and
cargo
- Don't pass `--lib` for crates without a library
- Use `run_cargo_test` for rust-installer
- Don't build documentation in `lint-docs` if `--no-doc` is passed
windows: kill rust-analyzer-proc-macro-srv before deleting stage0 directory
This fixes the following recurring error on windows:
```
Traceback (most recent call last):
File "C:\Users\jyn\src\rust\x.py", line 29, in <module>
bootstrap.main()
File "C:\Users\jyn\src\rust\src\bootstrap\bootstrap.py", line 963, in main
bootstrap(args)
File "C:\Users\jyn\src\rust\src\bootstrap\bootstrap.py", line 927, in bootstrap
build.download_toolchain()
File "C:\Users\jyn\src\rust\src\bootstrap\bootstrap.py", line 437, in download_toolchain
shutil.rmtree(bin_root)
File "C:\Users\jyn\AppData\Local\Programs\Python\Python311\Lib\shutil.py", line 759, in rmtree
return _rmtree_unsafe(path, onerror)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\jyn\AppData\Local\Programs\Python\Python311\Lib\shutil.py", line 617, in _rmtree_unsafe
_rmtree_unsafe(fullname, onerror)
File "C:\Users\jyn\AppData\Local\Programs\Python\Python311\Lib\shutil.py", line 622, in _rmtree_unsafe
onerror(os.unlink, fullname, sys.exc_info())
File "C:\Users\jyn\AppData\Local\Programs\Python\Python311\Lib\shutil.py", line 620, in _rmtree_unsafe
os.unlink(fullname)
PermissionError: [WinError 5] Access is denied: 'C:\\Users\\jyn\\src\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin\\rust-analyzer-proc-macro-srv.exe'
```
Fixes https://github.com/rust-lang/rust/issues/107018.
r? ```@ChrisDenton```
rustdoc: fix weird margins between Deref impl items
## Before
## After
## Description
In the old setup, if the dereffed-to item has multiple impl blocks, each one gets its own `div.impl-items` in the section, but there are no headers separating them. Since the last method in a `div.impl-items` has no bottom margin, and there are no margins between these divs, there is no margin between the last method of one impl and the first method of the following impl.
This patch fixes it by simplifying the HTML. Each Deref block gets exactly one `div.impl-items`, no matter how many impl blocks it actually has.
