Matthias Krüger [Tue, 27 Dec 2022 15:37:48 +0000 (16:37 +0100)]
Rollup merge of #106066 - JohnTitor:rm-bindings-after-at-fixme, r=compiler-errors
Always suggest as `MachineApplicable` in `recover_intersection_pat`
This resolves one FIXME in `recover_intersection_pat` by always applying `MachineApplicable` when suggesting, as `bindings_after_at` is now stable.
This also separates a test to apply `// run-rustfix`.
bors [Tue, 27 Dec 2022 10:23:32 +0000 (10:23 +0000)]
Auto merge of #106177 - matthiaskrgr:rollup-oe7z8ix, r=matthiaskrgr
Rollup of 4 pull requests
Successful merges:
- #105515 (Account for macros in const generics)
- #106146 (Readme: update section on how to run `x.py`)
- #106150 (Detect when method call on LHS might be shadowed)
- #106174 (Remove unused empty CSS rules in ayu theme)
Matthias Krüger [Tue, 27 Dec 2022 07:57:46 +0000 (08:57 +0100)]
Rollup merge of #106146 - kadiwa4:readme-x-py, r=jyn514
Readme: update section on how to run `x.py`
`./x.py` currently looks for `python3` (not `python`) in the `PATH`. I updated that in the readme and also mentioned a convenient way to run `x.py` on Windows. The PowerShell script is actually quite inconvenient to use (and not really necessary on the `cmd.exe` prompt) so I left it out.
In addition I adapted `./x` in one of the CI scripts.
bors [Mon, 26 Dec 2022 15:46:53 +0000 (15:46 +0000)]
Auto merge of #106149 - notriddle:notriddle/src-sidebar-toggle-pos, r=GuillaumeGomez
rustdoc: clean up src sidebar toggle position CSS
This PR makes the `464px` version of `#src-sidebar-toggle` the same as the `700px` version, with the button lower on the page so that it doesn't cover up the search form, and removes the left margin to make space for it.
bors [Mon, 26 Dec 2022 12:03:47 +0000 (12:03 +0000)]
Auto merge of #103828 - cassaundra:fix-format-args-span2, r=cjgillot
Fix incorrect span when using byte-escaped rbrace
Fix #103826, a format args span issue introduced in #102214.
The current solution for tracking skipped characters made it so that certain situations were ambiguous enough that the original span couldn't be worked out later. This PR improves on the original solution by keeping track of groups of skipped characters using a map, and fixes the previous bug. See an example of this ambiguity in the [previous PR's discussion](https://github.com/rust-lang/rust/pull/102214#issuecomment-1258711015).
bors [Mon, 26 Dec 2022 09:06:51 +0000 (09:06 +0000)]
Auto merge of #105605 - inquisitivecrystal:attr-validation, r=cjgillot
Don't perform invalid checks in `codegen_attrs`
The attributes `#[track_caller]` and `#[cmse_nonsecure_entry]` are only valid on functions. When validating one of these attributes, codegen_attrs previously called `fn_sig`, [which can only be used on functions](https://github.com/rust-lang/rust/pull/105201), on the item the attribute was attached to, assuming that the item was a function without checking. This led to [ICEs in situations where the attribute was incorrectly used on non-functions](https://github.com/rust-lang/rust/issues/105594).
With this change, we skip calling `fn_sig` if the item the attribute is attached to must be a function but isn't, because `check_attr` will reject such cases without codegen_attrs's intervention.
As a side note, some of the attributes in codegen_attrs are only valid on functions, but that property isn't actually checked. I'm planning to fix that in a follow up PR since it's a behavior change that will need to be validated rather than an obvious bugfix. Thankfully, all the attributes like that I've found so far are unstable.
Michael Howell [Mon, 26 Dec 2022 05:35:34 +0000 (22:35 -0700)]
rustdoc: clean up src sidebar toggle position CSS
This PR makes the `464px` version of `#src-sidebar-toggle` the same as the
`700px` version, with the button lower on the page so that it doesn't cover
up the search form, and removes the left margin to make space for it.
bors [Sun, 25 Dec 2022 20:51:37 +0000 (20:51 +0000)]
Auto merge of #105997 - RalfJung:immediate-abort, r=eholk
abort immediately on bad mem::zeroed/uninit
Now that we have non-unwinding panics, let's use them for these assertions. This re-establishes the property that `mem::uninitialized` and `mem::zeroed` will never unwind -- the earlier approach of causing panics here sometimes led to hard-to-debug segfaults when the surrounding code was not able to cope with the unexpected unwinding.
Cc `@bjorn3` I did not touch cranelift but I assume it needs a similar patch. However it has a `codegen_panic` abstraction that I did not want to touch since I didn't know how else it is used.
bors [Sat, 24 Dec 2022 17:14:26 +0000 (17:14 +0000)]
Auto merge of #104977 - RalfJung:ptr-from-ref, r=dtolnay
add ptr::from_{ref,mut}
We have methods to avoid almost all `as` casts around raw pointer handling, except for the initial cast from reference to raw pointer. These new methods close that gap.
(I also moved `null_mut` next to `null` to keep the file consistently organized.)
bors [Sat, 24 Dec 2022 10:46:43 +0000 (10:46 +0000)]
Auto merge of #106111 - matthiaskrgr:rollup-nnpoe5h, r=matthiaskrgr
Rollup of 6 pull requests
Successful merges:
- #105465 (Improve top-level docs)
- #105872 (Suggest remove last method call when type coerce with expected type)
- #106032 (std: only use LFS function on glibc)
- #106078 (Provide more context on FileCheck failures)
- #106100 (Codegen test for derived `<` on trivial newtype [TEST ONLY])
- #106109 (rustdoc: make line number CSS for doc comment and scraped the same)
This adds output to data race errors very similar to the spans we emit for Stacked Borrows errors. For example, from our test suite:
```
help: The Atomic Load on thread `<unnamed>` is here
--> tests/fail/data_race/atomic_read_na_write_race1.rs:23:13
|
23 | ... (&*c.0).load(Ordering::SeqCst) //~ ERROR: Data race detected between Atomic Load on thread `<unnamed>` and Write o...
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: The Write on thread `<unnamed>` is here
--> tests/fail/data_race/atomic_read_na_write_race1.rs:19:13
|
19 | *(c.0 as *mut usize) = 32;
| ^^^^^^^^^^^^^^^^^^^^^^^^^```
```
Because of https://github.com/rust-lang/miri/pull/2647 this comes without a perf regression, according to our benchmarks.
Matthias Krüger [Sat, 24 Dec 2022 07:53:48 +0000 (08:53 +0100)]
Rollup merge of #106100 - scottmcm:derived-less-than-test, r=compiler-errors
Codegen test for derived `<` on trivial newtype [TEST ONLY]
I originally wrote this for #106065, but the libcore changes there aren't necessarily a win.
So I pulled out this test to be its own PR since it's important (see https://github.com/rust-lang/rust/pull/105840#discussion_r1056030324) and well-intentioned changes to core or the derive could accidentally break it without that being obvious (other than by massive unexplained perf changes).
Matthias Krüger [Sat, 24 Dec 2022 07:53:48 +0000 (08:53 +0100)]
Rollup merge of #106078 - nikic:filecheck-context, r=Mark-Simulacrum
Provide more context on FileCheck failures
FileCheck provides 5 lines of context by default. This is often insufficient to analyze failures that happen in CI. Increase the amount of context to 100 lines.
Matthias Krüger [Sat, 24 Dec 2022 07:53:46 +0000 (08:53 +0100)]
Rollup merge of #105465 - jyn514:docs, r=Mark-Simulacrum
Improve top-level docs
See a detailed explanation in the commit messages. This is a companion PR to https://github.com/rust-lang/rustc-dev-guide/pull/1528.
* Link to other resources instead of inlining their information
* Remove ancient and outdated reference to `config.mk`
* Suggest `profile = "user"` in the README
* Add detail about dependencies from the dev-guide
* Link to CONTRIBUTING.md instead of rustc-dev-guide in the main readme
* Link to `std-dev-guide` in CONTRIBUTING.md
bors [Sat, 24 Dec 2022 07:35:23 +0000 (07:35 +0000)]
Auto merge of #106081 - mina86:c, r=Mark-Simulacrum
char: µoptimise UTF-16 surrogates decoding
According to Godbolt¹, on x86_64 using binary and produces slightly
better code than using subtraction. Readability of both is pretty
much equivalent so might just as well use the shorter option.
Matthias Krüger [Fri, 23 Dec 2022 23:31:43 +0000 (00:31 +0100)]
Rollup merge of #106093 - notriddle:notriddle/docblock-short-overflow, r=GuillaumeGomez
rustdoc: remove no-op CSS from `.docblock-short`
The rules `overflow:hidden` and `text-overflow:ellipses` only have an effect if overflow occurs, which cannot happen because it will just line wrap instead.
These rules definitely became obsolete by https://github.com/rust-lang/rust/pull/77699, when the stylesheet was decidedly changed to have line wrapping in short docblocks, but given the bug it was fixing, this probably got broken earlier.
Matthias Krüger [Fri, 23 Dec 2022 23:31:43 +0000 (00:31 +0100)]
Rollup merge of #106091 - GuillaumeGomez:correct-css-pseudo-element, r=notriddle
Use correct CSS pseudo-element selector
Pseudo-element should use "::" to not be confused with pseudo selectors (nice explanation here: https://css-tricks.com/to-double-colon-or-not-do-double-colon/).
Matthias Krüger [Fri, 23 Dec 2022 23:31:42 +0000 (00:31 +0100)]
Rollup merge of #106084 - RalfJung:into-iter, r=thomcc
fix vec::IntoIter::drop on high-alignment ZST
This fixes a soundness bug: IntoIter would call `drop_in_place` on an insufficiently aligned pointer. So if a ZST with alignment greater 1 had drop glue, that would be called with an unaligned reference. Since https://github.com/rust-lang/rust/pull/103957, Miri checks alignment even if the type does not have drop glue, which is how this bug was found.
Matthias Krüger [Fri, 23 Dec 2022 23:31:41 +0000 (00:31 +0100)]
Rollup merge of #106069 - notriddle:notriddle/search-tabs, r=GuillaumeGomez
rustdoc: use a more evocative name for CSS/JS `#titles`
This renames the ID, which is only used in search results, to `#search-tabs`. Also changes the `.count` to a span, so it doesn't need its display mode to be overridden.
- fix: deduplicate dependencies by artifact target (rust-lang/cargo#11478)
- Add warning if potentially-scrapable examples are skipped due to dev-dependencies (rust-lang/cargo#11503)
- Don't scrape examples from library targets by default (rust-lang/cargo#11499)
- Stabilize terminal-width (rust-lang/cargo#11494)
- Make sure that hash of `SourceId` is stable (rust-lang/cargo#11501)
- Use workspace lockfile when running `cargo package` and `cargo publish` (rust-lang/cargo#11477)
- Show `--help` if there is no man page for subcommand (rust-lang/cargo#11473)
bors [Fri, 23 Dec 2022 19:46:36 +0000 (19:46 +0000)]
Auto merge of #106087 - Nilstrieb:rollup-2m3nies, r=Nilstrieb
Rollup of 6 pull requests
Successful merges:
- #105661 (implement the skeleton of the updated trait solver)
- #105853 (Make the pre-push script work on directories with spaces)
- #106043 (Move tests)
- #106048 (Run `tidy` in its own job in PR CI)
- #106055 (Check arg expressions properly on error in `confirm_builtin_call`)
- #106067 (A few metadata nits)
Michael Howell [Fri, 23 Dec 2022 18:42:47 +0000 (11:42 -0700)]
rustdoc: remove no-op CSS from `.docblock-short`
The rules `overflow:hidden` and `text-overflow:ellipses` only have an
effect if overflow occurs, which cannot happen because it will just line
wrap instead.
These rules definitely became obsolete by
https://github.com/rust-lang/rust/pull/77699, when the stylesheet was
decidedly changed to have line wrapping in short docblocks, but given the
bug it was fixing, this probably got broken earlier.
- fix: deduplicate dependencies by artifact target (rust-lang/cargo#11478)
- Add warning if potentially-scrapable examples are skipped due to dev-dependencies (rust-lang/cargo#11503)
- Don't scrape examples from library targets by default (rust-lang/cargo#11499)
- Stabilize terminal-width (rust-lang/cargo#11494)
- Make sure that hash of `SourceId` is stable (rust-lang/cargo#11501)
- Use workspace lockfile when running `cargo package` and `cargo publish` (rust-lang/cargo#11477)
- Show `--help` if there is no man page for subcommand (rust-lang/cargo#11473)
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