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Visit `param_env` field in Obligation's `TypeFoldable` impl
This oversight appears to have gone unnoticed for a long time
without causing issues, but it should still be fixed.
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Diagnostic tweaks
* On type mismatch caused by assignment, point at the source of the expectation
* Hide redundant errors
* Suggest `while let` when `let` is missing in some cases
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Move some tests to more reasonable directories - 10
cc #73494
r? `@petrochenkov`
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This oversight appears to have gone unnoticed for a long time
without causing issues, but it should still be fixed.
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Tokenize emoji as if they were valid identifiers
In the lexer, consider emojis to be valid identifiers and reject
them later to avoid knock down parse errors.
Partially address #86102.
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Use the available Generics span field to avoid issues with `T: Fn()` bounds.
This is necessary to land #85346.
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Update cargo
7 commits in ad50d0d266213e0cc4f6e526a39d96faae9a3842..e1fb17631eb1b3665cdbe45b1c186111577ef512
2021-11-17 18:36:37 +0000 to 2021-11-22 16:53:06 +0000
- re-enable lto_build test on 32-bit MSVC (rust-lang/cargo#10110)
- Fix a couple issues with cyclic features and dev-dependencies (rust-lang/cargo#10103)
- Add --message-format for install command (rust-lang/cargo#10107)
- Update curl dependency, remove M1 macOS build error note (rust-lang/cargo#10106)
- Make clippy happy (rust-lang/cargo#10105)
- Give a hard error if `-Zrustdoc-scrape-examples` is missing a flag (rust-lang/cargo#10043)
- silly fix, pointer to the empty slice (rust-lang/cargo#10097)
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Set color for <a> in a more straightforward way.
Previously, we set the default color for <a> tags to black, and then had an override with a bunch of not() clauses to set anchors in
docblocks to blue.
Instead, we should set the default color for <a> to blue (or equivalent in other themes), and override it for places like the sidebar or search results, where we don't want them to be styled as links.
Demo at https://rustdoc.crud.net/jsha/theme-anchor/std/string/struct.String.html. This should result in no visible changes.
r? `@GuillaumeGomez`
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This makes it easier to find the test that needs fixing.
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Co-authored-by: Esteban Kuber <estebank@users.noreply.github.com>
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Fix `non-constant value` ICE (#90878)
This also fixes the same suggestion, which was kind of broken, because it just searched for the last occurence of `const` to replace with a `let`. This works great in some cases, but when there is no const and a leading space to the file, it doesn't work and panic with overflow because it thought that it had found a const.
I also changed the suggestion to only trigger if the `const` and the non-constant value are on the same line, because if they aren't, the suggestion is very likely to be wrong.
Also don't trigger the suggestion if the found `const` is on line 0, because that triggers the ICE.
Asking Esteban to review since he was the last one to change the relevant code.
r? ``@estebank``
Fixes #90878
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Move some tests to more reasonable directories - 9.5
cc #73494
r? `@petrochenkov`
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This function parameter attribute was introduced in https://github.com/rust-lang/rust/pull/44866 as an intermediate step in implementing `impl Trait`, it's not necessary or used anywhere by itself.
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Update cargo
11 commits in 2e2a16e983f597da62bc132eb191bc3276d4b1bb..ad50d0d266213e0cc4f6e526a39d96faae9a3842
2021-11-08 15:13:38 +0000 to 2021-11-17 18:36:37 +0000
- Warn when alias shadows external subcommand (rust-lang/cargo#10082)
- Implement escaping to allow clean -p to delete all files when directory contains glob characters (rust-lang/cargo#10072)
- Match any error when failing to find executables (rust-lang/cargo#10092)
- Enhance error message for target auto-discovery (rust-lang/cargo#10090)
- Include note about bug while building on macOS in mdbook (rust-lang/cargo#10073)
- Improve the help text of the --quiet args for all commands (rust-lang/cargo#10080)
- `future-incompat-report` checks both stdout and stderr for color support (rust-lang/cargo#10024)
- Remove needless borrow to make clippy happy (rust-lang/cargo#10081)
- Describe the background color of the timing graph (rust-lang/cargo#10076)
- Make ProfileChecking comments a doc comments (rust-lang/cargo#10077)
- Fix test: hash value depends on endianness and bitness. (rust-lang/cargo#10011)
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Print escaped string if char literal has multiple characters, but only one printable character
Fixes #90857
I'm not sure about the error message here, it could get rather long and *maybe* using the names of characters would be better? That wouldn't help the length any, though.
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update miri
This is needed to fix https://github.com/rust-lang/miri-test-libstd
r? ````@ghost````
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Alphabetize language features
This should significantly reduce the frequency of merge conflicts.
r? ````@joshtriplett````
````@rustbot```` label: +A-contributor-roadblock +S-waiting-on-review
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:arrow_up: rust-analyzer
r? ``@ghost``
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This should significantly reduce the frequency of merge conflicts.
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pub use core::simd;
A portable abstraction over SIMD has been a major pursuit in recent years for several programming languages. In Rust, `std::arch` offers explicit SIMD acceleration via compiler intrinsics, but it does so at the cost of having to individually maintain each and every single such API, and is almost completely `unsafe` to use. `core::simd` offers safe abstractions that are resolved to the appropriate SIMD instructions by LLVM during compilation, including scalar instructions if that is all that is available.
`core::simd` is enabled by the `#![portable_simd]` nightly feature tracked in https://github.com/rust-lang/rust/issues/86656 and is introduced here by pulling in the https://github.com/rust-lang/portable-simd repository as a subtree. We built the repository out-of-tree to allow faster compilation and a stochastic test suite backed by the proptest crate to verify that different targets, features, and optimizations produce the same result, so that using this library does not introduce any surprises. As these tests are technically non-deterministic, and thus can introduce overly interesting Heisenbugs if included in the rustc CI, they are visible in the commit history of the subtree but do nothing here. Some tests **are** introduced via the documentation, but these use deterministic asserts.
There are multiple unsolved problems with the library at the current moment, including a want for better documentation, technical issues with LLVM scalarizing and lowering to libm, room for improvement for the APIs, and so far I have not added the necessary plumbing for allowing the more experimental or libm-dependent APIs to be used. However, I thought it would be prudent to open this for review in its current condition, as it is both usable and it is likely I am going to learn something else needs to be fixed when bors tries this out.
The major types are
- `core::simd::Simd<T, N>`
- `core::simd::Mask<T, N>`
There is also the `LaneCount` struct, which, together with the SimdElement and SupportedLaneCount traits, limit the implementation's maximum support to vectors we know will actually compile and provide supporting logic for bitmasks. I'm hoping to simplify at least some of these out of the way as the compiler and library evolve.
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This enables programmers to use a safe alternative to the current
`extern "platform-intrinsics"` API for writing portable SIMD code.
This is `#![feature(portable_simd)]` as tracked in #86656
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This is the last step in landing rust-lang/miri#1340!
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ken-matsui:support-early-stopping-too-old-tidy-for-macos, r=Mark-Simulacrum
Support early stopping too old pre-installed `tidy` command for macOS in the HTML checker
This PR brings early stopping the HTML checker before errors, which leave some macOS users confused, and suggesting installing a newer `tidy` command.
The pre-installed `tidy` command on macOS is too old, released on 31 October 2006. Additionally, I can see the same date at [StackOverflow](https://stackoverflow.com/questions/22283382/overwrite-osx-tidy
) seven years ago. The `tidy` does not support two indispensable options: `--mute-id` and `--mute`. So, the `./x.py test` command fails with a bunch of errors due not to muting them.
I could confirm the `./x.py test` command before installing a newer `tidy` failed and its command after the installation succeeded.
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r=Mark-Simulacrum
Allow to run a specific rustdoc-js* test
r? ``@Mark-Simulacrum``
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Type inference for inline consts
Fixes #78132
Fixes #78174
Fixes #81857
Fixes #89964
Perform type checking/inference of inline consts in the same context as the outer def, similar to what is currently done to closure.
Doing so would require `closure_base_def_id` of the inline const to return the outer def, and since `closure_base_def_id` can be called on non-local crate (and thus have no HIR available), a new `DefKind` is created for inline consts.
The type of the generated anon const can capture lifetime of outer def, so we couldn't just use the typeck result as the type of the inline const's def. Closure has a similar issue, and it uses extra type params `CK, CS, U` to capture closure kind, input/output signature and upvars. I use a similar approach for inline consts, letting it have an extra type param `R`, and then `typeof(InlineConst<[paremt generics], R>)` would just be `R`. In borrowck region requirements are also propagated to the outer MIR body just like it's currently done for closure.
With this PR, inline consts in expression position are quitely usable now; however the usage in pattern position is still incomplete -- since those does not remain in the MIR borrowck couldn't verify the lifetime there. I have left an ignored test as a FIXME.
Some disucssions can be found on [this Zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/260443-project-const-generics/topic/inline.20consts.20typeck).
cc `````@spastorino````` `````@lcnr`````
r? `````@nikomatsakis`````
`````@rustbot````` label A-inference F-inline_const T-compiler
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Rollup of 6 pull requests
Successful merges:
- #87530 (Add comments regarding superfluous `!Sync` impls)
- #90591 (treat illumos like solaris in failing ui tests which need it)
- #90678 (Add some GATs-related regression tests)
- #90688 (enable `dotprod` target feature in arm)
- #90708 (Add a note about feature(explicit_generic_args_with_impl_trait) to the relevant error message)
- #90720 (Update cargo)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Update cargo
4 commits in 94ca096afbf25f670e76e07dca754fcfe27134be..2e2a16e983f597da62bc132eb191bc3276d4b1bb
2021-10-29 14:45:06 +0000 to 2021-11-08 15:13:38 +0000
- Fix debug panic on download with redirect body. (rust-lang/cargo#10048)
- no need to clone (rust-lang/cargo#10051)
- Update curl. (rust-lang/cargo#10040)
- Fix --scrape-examples-target-crate using package name (with dashes) instead of crate name (with underscores) (rust-lang/cargo#10037)
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Make `select_*` methods return `Vec` for `TraitEngine`
This reduces some complexity as an empty vec means no errors and non-empty vec means errors occurred.
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Don't abort compilation after giving a lint error
The only reason to use `abort_if_errors` is when the program is so broken that either:
1. later passes get confused and ICE
2. any diagnostics from later passes would be noise
This is never the case for lints, because the compiler has to be able to deal with `allow`-ed lints.
So it can continue to lint and compile even if there are lint errors.
Closes https://github.com/rust-lang/rust/issues/82761. This is a WIP because I have a feeling it will exit with 0 even if there were lint errors; I don't have a computer that can build rustc locally at the moment.
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Don't destructure args tuple in format_args!
This allows Clippy to parse the HIR more simply since `arg0` is changed to `_args.0`. (cc rust-lang/rust-clippy#7843). From rustc's perspective, I think this is something between a lateral move and a tiny improvement since there are fewer bindings.
r? `@m-ou-se`
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