Commit Graph

196424 Commits

Author SHA1 Message Date
Michael Goulet
16a3601f62 Delay a bug when failed to normalize trait ref during specialization 2022-08-03 01:37:02 +00:00
bors
e4417cf020 Auto merge of #92268 - jswrenn:transmute, r=oli-obk
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.
2022-08-02 21:17:31 +00:00
bors
4493a0f472 Auto merge of #100063 - matthiaskrgr:rollup-lznouys, r=matthiaskrgr
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
2022-08-02 17:18:58 +00:00
Matthias Krüger
269d15fbf8
Rollup merge of #100057 - GuillaumeGomez:rm-more-clean-impl, r=Dylan-DPC
Remove more Clean trait implementations

Follow-up of https://github.com/rust-lang/rust/pull/99638.

r? ``@notriddle``
2022-08-02 17:17:37 +02:00
Matthias Krüger
446895ad21
Rollup merge of #100053 - flip1995:clippy_backport, r=xFrednet
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
2022-08-02 17:17:36 +02:00
Matthias Krüger
0b3bbe6f9a
Rollup merge of #100052 - TimNN:patch-1, r=nikic
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 260a641068:

```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).
2022-08-02 17:17:35 +02:00
Matthias Krüger
06333e092b
Rollup merge of #100045 - Amanieu:global_asm_may_unwind, r=tmiasko
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.
2022-08-02 17:17:34 +02:00
Matthias Krüger
1ce85b1c39
Rollup merge of #100025 - tmiasko:rm-transfer-wrapper, r=cjgillot
Remove redundant `TransferWrapper` struct
2022-08-02 17:17:33 +02:00
Matthias Krüger
e20b59977b
Rollup merge of #100005 - GuillaumeGomez:cleanup-ast-attr-clean, r=notriddle
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`
2022-08-02 17:17:31 +02:00
Matthias Krüger
a0991b8ba8
Rollup merge of #99987 - Alexendoo:parse-format-position-span, r=fee1-dead
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
2022-08-02 17:17:30 +02:00
Jack Wrenn
965ffb0b5c safe transmute: fix broken intradoc link 2022-08-02 14:44:23 +00:00
bors
06f4950cbd Auto merge of #100032 - BoxyUwU:no_ty_in_placeholder_const, r=compiler-errors
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 🤔. Mostly opening this to see if this change has any perf impact when done before it can make `ConstKind`/`ConstS` smaller
2022-08-02 13:10:49 +00:00
Guillaume Gomez
04f570aad0 Remove Clean trait implementation for ast::Attribute and cleanup Attributes::from_ast function by splitting it in two 2022-08-02 13:03:13 +02:00
Guillaume Gomez
f84a948df1 Remove Clean trait implementation for hir::Lifetime 2022-08-02 12:55:52 +02:00
Guillaume Gomez
fa14d02d9b Remove Clean trait implementation for ty::TraitRef 2022-08-02 12:55:52 +02:00
bors
792bc5a010 Auto merge of #99977 - BlackHoleFox:cfte-cstr, r=thomcc
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.~~
2022-08-02 09:07:31 +00:00
tabokie
b608ec8f41
move [assertions_on_result_states] to restriction
Signed-off-by: tabokie <xy.tao@outlook.com>
2022-08-02 10:13:51 +02:00
Tim Neumann
efa9586427
RISC-V ASM test: relax label name constraint. 2022-08-02 10:10:11 +02:00
bors
ca37a45232 Auto merge of #100048 - matthiaskrgr:rollup-agimvm6, r=matthiaskrgr
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
2022-08-02 06:09:22 +00:00
Matthias Krüger
6ab19fd4f5
Rollup merge of #100042 - ehuss:update-books, r=ehuss
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&lt;T&gt;`
- 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)
2022-08-02 07:30:47 +02:00
Matthias Krüger
703ee5c3f4
Rollup merge of #100037 - fw-immunant:patch-1, r=jyn514
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
2022-08-02 07:30:46 +02:00
Matthias Krüger
042bba799b
Rollup merge of #100017 - solid-rs:patch/kmc-solid/adapt-to-78802, r=thomcc
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
    |
234 |             cvt(netc::connect(self.0.raw(), addrp, len))
    |                 -------------               ^^^^^ expected *-ptr, found union `SocketAddrCRepr`
    |                 |
    |                 arguments to this function are incorrect
    |
    = note: expected raw pointer `*const sockets::sockaddr`
                     found union `SocketAddrCRepr`
note: function defined here
   --> library\std\src\sys\solid\abi\sockets.rs:173:12
    |
    173 |     pub fn connect(s: c_int, name: *const sockaddr, namelen: socklen_t) -> c_int;
    |            ^^^^^^^
```
2022-08-02 07:30:45 +02:00
Matthias Krüger
beb4cdddde
Rollup merge of #100011 - compiler-errors:let-chain-restriction, r=fee1-dead
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`
2022-08-02 07:30:44 +02:00
Matthias Krüger
17f76a16f9
Rollup merge of #99994 - TaKO8Ki:remove-guess-head-span, r=fee1-dead
Remove `guess_head_span`

follow-up to #98519
2022-08-02 07:30:43 +02:00
Matthias Krüger
96908527ca
Rollup merge of #99779 - GuillaumeGomez:fix-item-info-pos-and-height, 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:

![Screenshot from 2022-07-26 21-55-53](https://user-images.githubusercontent.com/3050060/181100624-18b8b045-5c25-4c7c-9c44-97d55d29b675.png)

r? `@jsha`
2022-08-02 07:30:41 +02:00
Matthias Krüger
3357470fb7
Rollup merge of #99293 - jo3bingham:issue-98720-fix, r=jyn514
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.
2022-08-02 07:30:40 +02:00
Matthias Krüger
0629445300
Rollup merge of #99156 - lcnr:omoe-wa, r=wesleywiser
`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.
2022-08-02 07:30:39 +02:00
Amanieu d'Antras
96c955e66b 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.
2022-08-02 06:29:32 +01:00
bors
9538d2d0f1 Auto merge of #99431 - yaahc:error-in-core, r=joshtriplett
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.
2022-08-02 03:25:41 +00:00
Takayuki Maeda
a3c2d55356 remove a SourceMap::guess_head_span 2022-08-02 11:40:23 +09:00
Eric Huss
1bdb0ab6e9 Update books 2022-08-01 18:57:55 -07:00
bors
9d5cd21a5d Auto merge of #100033 - rylev:no-cancel-try-perf, r=Mark-Simulacrum
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`
2022-08-02 00:39:17 +00:00
Ryan Levick
debb75aa44 Don't cancel try-perf branch if 'outdated' 2022-08-01 18:50:58 -04:00
Frances Wingerter
9864db6c76
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`.
2022-08-01 22:03:18 +00:00
bors
21de280ccc Auto merge of #95884 - cjgillot:assoc-item, r=lcnr
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.
2022-08-01 21:43:35 +00:00
Jane Losare-Lusby
b2bbca3933 remove fn backtrace 2022-08-01 20:10:40 +00:00
Camille GILLOT
212a06ee69 Match on TraitItem exhaustively. 2022-08-01 21:39:59 +02:00
Camille GILLOT
6c5f077157 Bless incremental tests. 2022-08-01 21:39:56 +02:00
Camille GILLOT
957548183d Remove trait_of_item query. 2022-08-01 21:39:26 +02:00
Camille GILLOT
d7ea161b7e Remove DefId from AssocItemContainer. 2022-08-01 21:38:45 +02:00
Camille GILLOT
8ee4446ee5 Remove visibility from AssocItem. 2022-08-01 21:38:20 +02:00
Camille GILLOT
110f0656cb Store associated item defaultness in impl_defaultness. 2022-08-01 21:38:16 +02:00
Ellen
49d001c5f3 fmt... 2022-08-01 20:15:58 +01:00
Joseph Bingham
c5d661a01c add comment 2022-08-01 20:15:33 +01:00
bors
fe3342816a Auto merge of #99476 - dpaoliello:rawdylibvectorcall, r=michaelwoerister
Add tests for raw-dylib with vectorcall, and fix vectorcall code generation

* Adds tests for using `raw-dylib` (#58713) with `vectorcall`.
* Fixed code generation for `vectorcall` (parameters have to be marked with `InReg`, just like `fastcall`).
* Enabled running the `raw-dylib` `fastcall` tests when using MSVC (since I had to add support in the test for running MSVC-only tests since GCC doesn't support `vectorcall`).
2022-08-01 18:43:57 +00:00
bors
c9e134e1b6 Auto merge of #100024 - matthiaskrgr:rollup-36ab4wx, r=matthiaskrgr
Rollup of 8 pull requests

Successful merges:

 - #99340 (Fix ICE in Definitions::create_def)
 - #99629 (Improve `cannot move out of` error message)
 - #99864 (bootstrap: don't emit warn about duplicated deps with same/different features if some of sets actually empty)
 - #99911 (Remove some uses of `guess_head_span`)
 - #99976 (Make Rustdoc exit with correct error code when scraping examples from invalid files)
 - #100003 (Improve size assertions.)
 - #100012 (Avoid `Ty` to `String` conversions)
 - #100020 (better error when python is not found in x - issue #99648)

Failed merges:

 - #99994 (Replace `guess_head_span` with `opt_span`)

r? `@ghost`
`@rustbot` modify labels: rollup
2022-08-01 15:40:43 +00:00
Tomasz Miąsko
099a32bbe4 Remove redundant TransferWrapper struct 2022-08-01 17:08:19 +02:00
Matthias Krüger
058ea7a955
Rollup merge of #100020 - CallumIO:issue-99648, r=jyn514
better error when python is not found in x - issue #99648

`x` now shows an appropriate error message and exits, when a version of `python` is not found on the users `PATH`.

Resolves #99648
2022-08-01 16:49:35 +02:00
Matthias Krüger
4606830f83
Rollup merge of #100012 - TaKO8Ki:avoid-ty-to-string-conversions, r=fee1-dead
Avoid `Ty` to `String` conversions

follow-up to #98668
2022-08-01 16:49:34 +02:00
Matthias Krüger
e6bb00fff5
Rollup merge of #100003 - nnethercote:improve-size-assertions, r=lqd
Improve size assertions.

- For any file with four or more size assertions, move them into a
  separate module (as is already done for `hir.rs`).
- Add some more for AST nodes and THIR nodes.
- Put the `hir.rs` ones in alphabetical order.

r? `@lqd`
2022-08-01 16:49:33 +02:00