Josh Stone [Sat, 22 Oct 2022 00:44:35 +0000 (17:44 -0700)]
Truncate thread names on Linux and Apple targets
These targets have system limits on the thread names, 16 and 64 bytes
respectively, and `pthread_setname_np` returns an error if the name is
longer. However, we're not in a context that can propagate errors when
we call this, and we used to implicitly truncate on Linux with `prctl`,
so now we manually truncate these names ahead of time.
bors [Fri, 21 Oct 2022 18:09:03 +0000 (18:09 +0000)]
Auto merge of #101077 - sunshowers:signal-mask-inherit, r=sunshowers
Change process spawning to inherit the parent's signal mask by default
Previously, the signal mask was always reset when a child process is
started. This breaks tools like `nohup` which expect `SIGHUP` to be
blocked for all transitive processes.
With this change, the default behavior changes to inherit the signal mask.
This also changes the signal disposition for `SIGPIPE` to only be changed if the `#[unix_sigpipe]` attribute isn't set.
bors [Fri, 21 Oct 2022 15:27:56 +0000 (15:27 +0000)]
Auto merge of #98450 - lqd:doc-metadata, r=lqd,GuillaumeGomez
Remove more attributes from metadata
A lot of the attributes that are currently stored in the metadata aren't used at all. The biggest metadata usage comes from the doc attributes currently but they are needed by rustdoc so we only removed the ones that cannot be used in downstream crates (doc comments on private items).
bors [Fri, 21 Oct 2022 12:41:09 +0000 (12:41 +0000)]
Auto merge of #103344 - Dylan-DPC:rollup-d1rpfvx, r=Dylan-DPC
Rollup of 6 pull requests
Successful merges:
- #102287 (Elaborate supertrait bounds when triggering `unused_must_use` on `impl Trait`)
- #102922 (Filtering spans when emitting json)
- #103051 (translation: doc comments with derives, subdiagnostic-less enum variants, more derive use)
- #103111 (Account for hygiene in typo suggestions, and use them to point to shadowed names)
- #103260 (Fixup a few tests needing asm support)
- #103321 (rustdoc: improve appearance of source page navigation bar)
Failed merges:
- #103209 (Diagnostic derives: allow specifying multiple alternative suggestions)
Dylan DPC [Fri, 21 Oct 2022 11:59:58 +0000 (17:29 +0530)]
Rollup merge of #103051 - davidtwco:translation-tidying-up, r=compiler-errors
translation: doc comments with derives, subdiagnostic-less enum variants, more derive use
- Adds support for `doc` attributes in the diagnostic derives so that documentation comments don't result in the derive failing.
- Adds support for enum variants in the subdiagnostic derive to not actually correspond to an addition to a diagnostic.
- Made use of the derive in more places in the `rustc_ast_lowering`, `rustc_ast_passes`, `rustc_lint`, `rustc_session`, `rustc_infer` - taking advantage of recent additions like eager subdiagnostics, multispan suggestions, etc.
Dylan DPC [Fri, 21 Oct 2022 11:59:57 +0000 (17:29 +0530)]
Rollup merge of #102287 - compiler-errors:unused-must-use-also-supertrait, r=fee1-dead
Elaborate supertrait bounds when triggering `unused_must_use` on `impl Trait`
Given `impl Trait`, if one of its supertraits has a `#[must_use]`, then trigger the lint. This means that, for example, `-> impl ExactSizeIterator` also triggers the `must_use` on `trait Iterator`, which fixes #102183.
This might need `@rust-lang/lang` sign-off, since it changes the behavior of the lint, so cc'ing them.
bors [Thu, 20 Oct 2022 21:08:28 +0000 (21:08 +0000)]
Auto merge of #103322 - matthiaskrgr:rollup-m9zgpft, r=matthiaskrgr
Rollup of 9 pull requests
Successful merges:
- #103221 (Fix `SelfVisitor::is_self_ty` ICE)
- #103230 (Clarify startup)
- #103281 (Adjust `transmute{,_copy}` to be clearer about which of `T` and `U` is input vs output)
- #103288 (Fixed docs typo in `library/std/src/time.rs`)
- #103296 (+/- shortcut now only expand/collapse, not both)
- #103297 (fix typo)
- #103313 (Don't label `src/test` tests as `A-testsuite`)
- #103315 (interpret: remove an incorrect assertion)
- #103319 (Improve "`~const` is not allowed here" message)
Matthias Krüger [Thu, 20 Oct 2022 20:42:41 +0000 (22:42 +0200)]
Rollup merge of #103315 - RalfJung:interpret-switchint-ice, r=bjorn3
interpret: remove an incorrect assertion
This fixes an ICE in Miri, [reported](https://rust-lang.zulipchat.com/#narrow/stream/269128-miri/topic/SwitchInt.20with.20no.20targets.3F) by `@saethlin.` The faulty assertion was introduced by https://github.com/rust-lang/rust/commit/432535da2b5144d467056efcfa6864d35ba2de0f, when a previously correct assertion checking that the `otherwise` target exists got replaced by this assertion checking that at least one more target beyond `otherwise` exists.
Sadly we don't have a small reproducer so I don't think we can easily add a testcase.
Matthias Krüger [Thu, 20 Oct 2022 20:42:39 +0000 (22:42 +0200)]
Rollup merge of #103288 - johnmatthiggins:master, r=thomcc
Fixed docs typo in `library/std/src/time.rs`
* Changed comment from `Previous rust versions panicked when self was earlier than the current time.` to `Previous rust versions panicked when the current time was earlier than self.`
* Resolves #103282.
bors [Thu, 20 Oct 2022 16:20:50 +0000 (16:20 +0000)]
Auto merge of #103092 - petrochenkov:weaklto, r=wesleywiser
linker: Fix weak lang item linking with combination windows-gnu + LLD + LTO
In https://github.com/rust-lang/rust/pull/100404 this logic was originally disabled for MSVC due to issues with LTO, but the same issues appear on windows-gnu with LLD because that LLD uses the same underlying logic as MSVC LLD, just with re-syntaxed command line options.
So this PR just disables it for LTO builds in general.
bors [Thu, 20 Oct 2022 10:40:09 +0000 (10:40 +0000)]
Auto merge of #103185 - chenyukang:yukang/fix-span-next-point, r=davidtwco
Fix the bug of next_point in source_map
There is a bug in `next_point`, the new span won't move to next position when be called in the first time.
For this reason, our current code is working like this:
1. When we really want to move to the next position, we called two times of `next_point`
2. Some code which use `next_point` actually done the same thing with `shrink_to_hi`
This fix make sure when `next_point` is called, span will move with the width at least 1, and also work correctly in the scenario of multiple bytes.
As mentioned in the issue, https://github.com/rust-lang/rust/pull/102924 introduced this regression. This PR partially reverts it and adds a regression test.
Matthias Krüger [Thu, 20 Oct 2022 05:58:55 +0000 (07:58 +0200)]
Rollup merge of #103197 - est31:stabilize_proc_macro_source_text, r=petrochenkov
Stabilize proc_macro::Span::source_text
Splits `proc_macro::Span::source_text` into a new feature gate and stabilizes it. The [FCP is complete](https://github.com/rust-lang/rust/issues/101991#issuecomment-1279393265).
bors [Thu, 20 Oct 2022 05:56:56 +0000 (05:56 +0000)]
Auto merge of #103220 - compiler-errors:deny-infers, r=lcnr
Deny hashing ty/re/ct inference variables
cc `@cjgillot` and https://github.com/rust-lang/rust/pull/102695#issuecomment-1275706528
r? `@lcnr`
best reviewed one commit at a time, mostly because the second commit that fixes `ClosureOutlivesRequirement` is mostly noise because of losing its `<'tcx>` lifetime parameter.
bors [Wed, 19 Oct 2022 21:17:09 +0000 (21:17 +0000)]
Auto merge of #103264 - matthiaskrgr:rollup-3ja4spo, r=matthiaskrgr
Rollup of 7 pull requests
Successful merges:
- #103211 (rustdoc: remove class name `location` from sidebar sibling nav)
- #103223 (Use already checked RHS ty for LHS deref suggestions)
- #103237 (Clean up codeblock-tooltip rustdoc-gui test)
- #103239 (Allow #[unstable] impls for fn() with unstable abi.)
- #103246 (Mark `rust-analyzer` as a host-only tool)
- #103257 (rustdoc: move `setting-line` color CSS to settings.css)
- #103258 (Make miri read_dir test a little more robust)
Matthias Krüger [Wed, 19 Oct 2022 19:38:41 +0000 (21:38 +0200)]
Rollup merge of #103246 - ferrocene:pa-rust-analyzer-hosts, r=Mark-Simulacrum
Mark `rust-analyzer` as a host-only tool
All tools meant to be shipped with host toolchains only should be marked as `ONLY_HOSTS = true`, but rust-analyzer was marked as `ONLY_HOSTS = false` incorrectly. This meant that bootstrap attempted to build rust-analyzer for cross-compilation-only targets, causing errors because libstd is not present on some of them.
It will still be possible to cross-compile rust-analyzer by passing a different `--host` flag to `./x`, like you can cross-compile other tools.
Matthias Krüger [Wed, 19 Oct 2022 19:38:40 +0000 (21:38 +0200)]
Rollup merge of #103223 - compiler-errors:deref-sugg-slow, r=wesleywiser
Use already checked RHS ty for LHS deref suggestions
There's no reason to do the `check_lhs_assignable` and RHS `check_expr_with_hint` in that order, so invert them and use the typeck results to avoid exponential blowup on error.
This change tweaks the CSS to apply most of its styles to `.sidebar h2`, cleaning up a few redundant rules from `.mobile-topbar .location` and restoring useful navigation aids in mobile mode.
bors [Wed, 19 Oct 2022 13:53:06 +0000 (13:53 +0000)]
Auto merge of #103214 - Nilstrieb:set-theory, r=petrochenkov
Use Set instead of Vec in transitive_relation
Helps with #103195. It doesn't fix the underlying quadraticness but it makes it _a lot_ faster to an extent where even doubling the amount of nested references still takes less than two seconds (50s on nightly).
I want to see whether this causes regressions (because the vec was usually quite small) or improvements (as lookup for bigger sets is now much faster) in real code.
Pietro Albini [Wed, 19 Oct 2022 12:33:17 +0000 (14:33 +0200)]
mark rust-analyzer as a host-only tool
All tools meant to be shipped with host toolchains only should be marked
as `ONLY_HOSTS = true`, but rust-analyzer was marked as `ONLY_HOSTS =
false` incorrectly. This meant that bootstrap attempted to build
rust-analyzer for cross-compilation-only targets, causing errors because
libstd is not present on some of them.
It will still be possible to cross-compile rust-analyzer by passing a
different --host flag to ./x, like you can cross-compile other tools.
bors [Wed, 19 Oct 2022 11:12:10 +0000 (11:12 +0000)]
Auto merge of #103228 - Dylan-DPC:rollup-31yiauw, r=Dylan-DPC
Rollup of 6 pull requests
Successful merges:
- #102863 (Standardize "use parentheses to call" suggestions between typeck and trait selection)
- #103034 (Let expressions on RHS shouldn't be terminating scopes)
- #103127 (Make transpose const and inline)
- #103153 (Allow `Vec::leak` when using `no_global_oom_handling`)
- #103182 (Clean up query descriptions)
- #103216 (Consider patterns in fn params in an `Elided(Infer)` lifetime rib.)
Dylan DPC [Wed, 19 Oct 2022 08:35:52 +0000 (14:05 +0530)]
Rollup merge of #103127 - SUPERCILEX:inline-const-uninit, r=scottmcm
Make transpose const and inline
r? `@scottmcm`
- These should have been const from the beginning since we're never going to do more than a transmute.
- Inline these always because that's what every other method in MaybeUninit which simply casts does. :) Ok, but a stronger justification is that because we're taking in arrays by `self`, not inlining would defeat the whole purpose of using `MaybeUninit` due to the copying.
Dylan DPC [Wed, 19 Oct 2022 08:35:52 +0000 (14:05 +0530)]
Rollup merge of #103034 - nathanwhit:let-chains-rhs-temporaries, r=wesleywiser
Let expressions on RHS shouldn't be terminating scopes
Fixes #100276.
Before this PR, we were unconditionally marking the RHS of short-circuiting binary expressions as a terminating scope.
In the case of a let chain where the `let` expression was on the RHS, this meant that temporaries within the `let` expr would only live until the end of the expression. Since this only affected the RHS, this led to surprising behavior ([example](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=d1b0a5d1f01882f9c89c2194a75eb19f)).
After this PR, we only mark the RHS as a terminating scope if it is not a `let` expression.
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