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When an item isn't found, we may suggest an appropriate import to
`use`. Along with that, we also suggest updating the path to work
with the `use`. Unfortunately, if the code in question originates
from a macro, the span used to indicate which part of the path
needs updating may not be suitable and cause an ICE. Since, such
code is not adjustable directly by the user without modifying the
macro, just skip the suggestion in such cases.
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Rollup of 6 pull requests
Successful merges:
- #99933 (parallelize HTML checking tool)
- #99958 (Improve position named arguments lint underline and formatting names)
- #100008 (Update all pre-cloned submodules on startup)
- #100049 (:arrow_up: rust-analyzer)
- #100070 (Clarify Cargo.toml comments)
- #100074 (rustc-docs: Be less specific about the representation of `+bundle`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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remove `commit_unconditionally`
`commit_unconditionally` is a noop unless we somehow inspect the current state of our snapshot. The only thing which does that is the leak check which was only used in one place where `commit_if_ok` is probably at least as, or even more, correct.
r? rust-lang/types
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Initial implementation of transmutability trait.
*T'was the night before Christmas and all through the codebase, not a miri was stirring — no hint of `unsafe`!*
This PR provides an initial, **incomplete** implementation of *[MCP 411: Lang Item for Transmutability](https://github.com/rust-lang/compiler-team/issues/411)*. The `core::mem::BikeshedIntrinsicFrom` trait provided by this PR is implemented on-the-fly by the compiler for types `Src` and `Dst` when the bits of all possible values of type `Src` are safely reinterpretable as a value of type `Dst`.
What this PR provides is:
- [x] [support for transmutations involving primitives](https://github.com/jswrenn/rust/tree/transmute/src/test/ui/transmutability/primitives)
- [x] [support for transmutations involving arrays](https://github.com/jswrenn/rust/tree/transmute/src/test/ui/transmutability/arrays)
- [x] [support for transmutations involving structs](https://github.com/jswrenn/rust/tree/transmute/src/test/ui/transmutability/structs)
- [x] [support for transmutations involving enums](https://github.com/jswrenn/rust/tree/transmute/src/test/ui/transmutability/enums)
- [x] [support for transmutations involving unions](https://github.com/jswrenn/rust/tree/transmute/src/test/ui/transmutability/unions)
- [x] [support for weaker validity checks](https://github.com/jswrenn/rust/blob/transmute/src/test/ui/transmutability/unions/should_permit_intersecting_if_validity_is_assumed.rs) (i.e., `Assume::VALIDITY`)
- [x] visibility checking
What isn't yet implemented:
- [ ] transmutability options passed using the `Assume` struct
- [ ] [support for references](https://github.com/jswrenn/rust/blob/transmute/src/test/ui/transmutability/references.rs)
- [ ] smarter error messages
These features will be implemented in future PRs.
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rustc-docs: Be less specific about the representation of `+bundle`
For https://github.com/rust-lang/rust/issues/99429.
r? `@bjorn3`
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Clarify Cargo.toml comments
Existing comments were left in an incoherent state after #99768.
r? `@RalfJung`
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:arrow_up: rust-analyzer
r? `@ghost`
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Update all pre-cloned submodules on startup
Fixes https://github.com/rust-lang/rust/issues/99083
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Improve position named arguments lint underline and formatting names
For named arguments used as implicit position arguments, underline both
the opening curly brace and either:
* if there is formatting, the next character (which will either be the
closing curl brace or the `:` denoting the start of formatting args)
* if there is no formatting, the entire arg span (important if there is
whitespace like `{ }`)
This should make it more obvious where the named argument should be.
Additionally, in the lint message, emit the formatting argument names
without a dollar sign to avoid potentially confusion.
Fixes #99907
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parallelize HTML checking tool
there's a lot of IO, so timings on my laptop are far from stable, but it seems to be considerably faster.
this step often appears to take 5+ minutes in CI, so hopefully this offers a speedup
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Existing comments were left in an incoherent state after #99768.
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Rollup of 7 pull requests
Successful merges:
- #99987 (Always include a position span in `rustc_parse_format::Argument`)
- #100005 (Remove Clean trait for ast::Attribute and improve Attributes::from_ast)
- #100025 (Remove redundant `TransferWrapper` struct)
- #100045 (Properly reject the `may_unwind` option in `global_asm!`)
- #100052 (RISC-V ASM test: relax label name constraint.)
- #100053 (move [`assertions_on_result_states`] to restriction)
- #100057 (Remove more Clean trait implementations)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Remove more Clean trait implementations
Follow-up of https://github.com/rust-lang/rust/pull/99638.
r? ``@notriddle``
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move [`assertions_on_result_states`] to restriction
"Backports" the first commit of https://github.com/rust-lang/rust-clippy/pull/9273, so that the lint doesn't go into beta as a warn-by-default lint.
The other changes in the linked PR can ride the train as usual.
r? ``@xFrednet`` (only Clippy changes, so we don't need to bother compiler people)
---
For Clippy:
changelog: none
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RISC-V ASM test: relax label name constraint.
The test is currently [broken at LLVM Head](https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/12425#01825d5b-c3d1-4fdc-a98d-5956b246aee2), likely since https://github.com/llvm/llvm-project/commit/260a64106854986a981e49ed87ee740460a23eb5:
```plain
/var/lib/buildkite-agent/builds/rust-llvm-integrate/llvm-project/rust-llvm-integrate-prototype/src/test/assembly/asm/riscv-types.rs:59:11: error: CHECK: expected string not found in input
--
| // CHECK: lb t0, %pcrel_lo(.Lpcrel_hi0)(t0)
| ^
| /var/lib/buildkite-agent/builds/rust-llvm-integrate/llvm-project/rust-llvm-integrate-prototype/build/x86_64-unknown-linux-gnu/test/assembly/asm/riscv-types.riscv64/riscv-types.s:24:36: note: scanning from here
| auipc t0, %pcrel_hi(extern_static)
| ^
| /var/lib/buildkite-agent/builds/rust-llvm-integrate/llvm-project/rust-llvm-integrate-prototype/build/x86_64-unknown-linux-gnu/test/assembly/asm/riscv-types.riscv64/riscv-types.s:25:2: note: possible intended match here
| lb t0, %pcrel_lo(.Lpcrel_hi18)(t0)
| ^
```
As far as I can tell, the exact index in the label probably doesn't matter for the test, especially if LLVM can change it to ~arbitrary values, though I'm not an ASM or RISC-V expert.
This [fixes the test](https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/12427).
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Properly reject the `may_unwind` option in `global_asm!`
This was accidentally accepted even though it had no effect in
`global_asm!`. The option only makes sense for `asm!` which runs within
a function.
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Remove redundant `TransferWrapper` struct
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Remove Clean trait for ast::Attribute and improve Attributes::from_ast
I prefer to keep this commit on its own for this PR because I'm changing a bit more things than expected originally: I split `Attributes::from_ast` into two because there is only one location making use of its second parameter.
Follow-up of https://github.com/rust-lang/rust/pull/99638.
r? `@notriddle`
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Always include a position span in `rustc_parse_format::Argument`
Moves the spans from the `Position` enum to always be included in the `Argument` struct. Doesn't make any changes to use it in rustc, but it will be useful for some upcoming Clippy lints
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make `PlaceholderConst` not store the type of the const
Currently the `Placeholder` variant on `ConstKind` is 28 bytes when with this PR its 8 bytes, i am not sure this is really useful at all rn since `Unevaluated` and `Value` variants are huge still but eventually it should be possible to get both down to 16 bytes :thinking:. Mostly opening this to see if this change has any perf impact when done before it can make `ConstKind`/`ConstS` smaller
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Attributes::from_ast function by splitting it in two
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Add validation to const fn CStr creation
Improves upon the existing validation that only worked when building the stdlib from source. `CStr::from_bytes_with_nul_unchecked` now utilizes `const_eval_select` to validate the safety requirements of the function when used as `const FOO: &CStr = CStr::from_bytes_with_nul_unchecked(b"Foobar\0");`.
This can help catch erroneous code written by accident and, assuming a new enough `rustc` in use, remove the need for boilerplate safety comments for this function in `const` contexts.
~~I think this might need a UI test, but I don't know where to put it. If this is a worth change, a perf run would be nice to make sure the `O(n)` validation isn't too bad. I didn't notice a difference building the stdlib tests locally.~~
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Signed-off-by: tabokie <xy.tao@outlook.com>
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For named arguments used as implicit position arguments, underline both
the opening curly brace and either:
* if there is formatting, the next character (which will either be the
closing curl brace or the `:` denoting the start of formatting args)
* if there is no formatting, the entire arg span (important if there is
whitespace like `{ }`)
This should make it more obvious where the named argument should be.
Additionally, in the lint message, emit the formatting argument names
without a dollar sign to avoid potentially confusion.
Fixes #99907
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Rollup of 8 pull requests
Successful merges:
- #99156 (`codegen_fulfill_obligation` expect erased regions)
- #99293 (only run --all-targets in stage0 for Std)
- #99779 (Fix item info pos and height)
- #99994 (Remove `guess_head_span`)
- #100011 (Use Parser's `restrictions` instead of `let_expr_allowed`)
- #100017 (kmc-solid: Update `Socket::connect_timeout` to be in line with #78802)
- #100037 (Update rustc man page to match `rustc --help`)
- #100042 (Update books)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Update books
## reference
2 commits in a92be0fef439b3d8e0468d82cb24812d303520a0..f3d3953bf3b158d596c96d55ce5366f9f3f972e9
2022-07-21 19:01:23 -0700 to 2022-08-01 17:17:37 -0700
- Add `let_chains` references (rust-lang/reference#1179)
- Remove outdated warning (rust-lang/reference#1243)
## rust-by-example
18 commits in 3155db49b0d57cd82c65456ac210b69ecec5ccb1..ee342dc91e1ba1bb1e1f1318f84bbe3bfac04798
2022-07-05 20:35:53 -0300 to 2022-07-27 11:06:36 -0300
- Closure inferred twice (rust-lang/rust-by-example#1588)
- fix a syntax bug in example assembly (rust-lang/rust-by-example#1511)
- Minor grammar change in src/std/rc.md paragraph 2 (rust-lang/rust-by-example#1586)
- Fix typo in asm.md (rust-lang/rust-by-example#1585)
- Fix incorrect padding in fixed-width print (rust-lang/rust-by-example#1584)
- Update print.md (rust-lang/rust-by-example#1582)
- add-chapter-on-defaults (rust-lang/rust-by-example#1580)
- Fix typo (rust-lang/rust-by-example#1579)
- fix a compile error (rust-lang/rust-by-example#1578)
- Suggest using mod.rs pattern to share test code (rust-lang/rust-by-example#1577)
- fix a compile error in iter_any.md (rust-lang/rust-by-example#1576)
- Mention attribute like macros in attributes.md (rust-lang/rust-by-example#1574)
- Update exercise to be clearer (rust-lang/rust-by-example#1573)
- fixes link for turbofish in testcase_mapreduce.md (rust-lang/rust-by-example#1572)
- Fix inconsistency between comment and code in hello/print.md (rust-lang/rust-by-example#1571)
- Fixes a typo in print.md (rust-lang/rust-by-example#1570)
- into_iter-moves-elements (rust-lang/rust-by-example#1569)
- Fix a typo in print.md (rust-lang/rust-by-example#1568)
## rustc-dev-guide
16 commits in d5201cddace979b299ec1bf9fd8997338151aa9d..04f3cf0bb2f5a6ee2bfc4b1a6a6cd8c11d1c5531
2022-07-21 04:48:49 +0200 to 2022-07-31 07:46:57 +0200
- address review comment
- accept review suggestion
- try address review comments
- summary of chapter
- Update src/building/compiler-documenting.md
- revamp doc-build chapter
- minor fixes
- Prefer relative links
- Fix the link to clippy docs
- Fix the link to `ResolverAstLowering`
- Fix the link to `ProcMacro` trait
- Fix the link to `Lazy<T>`
- Add instructions to fix build errors in std after adding a new target
- Document how to build a cross-compiler
- Add documentation about Microsoft provided debuggers and CodeView/PDB… (rust-lang/rustc-dev-guide#1406)
- rust-analyzer is now a subtree
## embedded-book
2 commits in 766979590da8100998f0d662499d4a901d8d1640..befe6840874311635c417cf731377f07234ee373
2022-07-04 09:13:58 +0000 to 2022-07-25 07:51:14 +0000
- Updated instructions for running first Hardware example (rust-embedded/book#323)
- Improved ligability for hardware.md (rust-embedded/book#324)
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Update rustc man page to match `rustc --help`
This brings the `--crate-type`, `--emit`, and `--print` options' allowed arguments into sync with that printed by `rustc --help`.
c.f. the `opt::multi_s` calls for `"crate-type"`, `"emit"`, and `"print"` here: https://github.com/rust-lang/rust/blob/master/compiler/rustc_session/src/config.rs
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kmc-solid: Update `Socket::connect_timeout` to be in line with #78802
Fixes the build failure of the [`*-kmc-solid_*`](https://doc.rust-lang.org/nightly/rustc/platform-support/kmc-solid.html) Tier 3 targets after #78802.
```
error[E0308]: mismatched types
--> library\std\src\sys\solid\net.rs:234:45
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234 | cvt(netc::connect(self.0.raw(), addrp, len))
| ------------- ^^^^^ expected *-ptr, found union `SocketAddrCRepr`
| |
| arguments to this function are incorrect
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= note: expected raw pointer `*const sockets::sockaddr`
found union `SocketAddrCRepr`
note: function defined here
--> library\std\src\sys\solid\abi\sockets.rs:173:12
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173 | pub fn connect(s: c_int, name: *const sockaddr, namelen: socklen_t) -> c_int;
| ^^^^^^^
```
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Use Parser's `restrictions` instead of `let_expr_allowed`
This also means that the `ALLOW_LET` flag is reset properly for subexpressions, so we can properly deny things like `a && (b && let c = d)`. Also the parser is a tiny bit smaller now.
It doesn't reject _all_ bad `let` expr usages, just a bit more.
cc `@c410-f3r`
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Remove `guess_head_span`
follow-up to #98519
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r=notriddle
Fix item info pos and height
Fixes https://github.com/rust-lang/rust/issues/98266.
Fixes https://github.com/rust-lang/rust/issues/98343.
You can test it [here](https://rustdoc.crud.net/imperio/fix-item-info-pos-and-height/lib2/trait.Trait.html).
Here is a screenshot of the result:
r? `@jsha`
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only run --all-targets in stage0 for Std
Repro'd the issue with `python3 x.py check --stage 1 library/std` and tested the fix with the same command.
r? `@jyn514`
I tried to implement [this solution](https://github.com/rust-lang/rust/issues/98720#issuecomment-1184435462), but didn't have any luck. I don't think I fully understood what needed to be done. However, I would love to be mentored on it since it would be a more correct solution, and I can learn more about how bootstrap works.
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`codegen_fulfill_obligation` expect erased regions
it's a query, so by erasing regions before calling it, we get better caching.
This doesn't actually change anything as its already the status quo.
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This was accidentally accepted even though it had no effect in
`global_asm!`. The option only makes sense for `asm!` which runs within
a function.
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Remove `fn backtrace` and replace with usages of provider API
This PR is part of moving error into core and has been split to facilitate review.
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Don't cancel try-perf branch if 'outdated'
`try-perf` just like the `try` branch should always run all jobs to completion. This allows us to use the branch like a queue.
r? `@Mark-Simulacrum`
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This brings the `--crate-type`, `--emit`, and `--print` options' allowed arguments into sync with that printed by `rustc --help`.
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Thin `AssocItem`
This PR removes a few fields from `AssocItem` that should be easily computed using other queries.
This simplifies some of the metadata decoding.
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