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Fix a couple Emscripten tests
This fixes a couple Emscripten tests where the correct fix is more or less obvious. A couple UI tests are still broken with this PR:
- `tests/ui/abi/numbers-arithmetic/return-float.rs` (#136197)
- `tests/ui/no_std/no-std-unwind-binary.rs` (haven't debugged yet)
- `tests/ui/test-attrs/test-passed.rs` (haven't debugged this either)
`````@rustbot````` label +T-compiler +O-emscripten
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Clean up uses of the unstable `dwarf_version` option
- Consolidate calculation of the effective value.
- Check the target `DebuginfoKind` instead of using `is_like_msvc`.
- Add the tracking issue to the unstable book page for this feature.
cc #103057
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Match Ergonomics 2024: update edition 2024 behavior of feature gates
This updates the edition 2024 behavior of the feature gates `ref_pat_eat_one_layer_2024_structural` and `ref_pat_eat_one_layer_2024` to correspond to the left and right typing rules compared [here](https://nadrieril.github.io/typing-rust-patterns/?compare=true&opts2=AQEBAAABAQABAgIAAQEBAAEBAAABAAA%3D&opts1=AQEBAgEBAQEBAgIAAAAAAAAAAAAAAAA%3D&mode=rules&do_cmp=true&ty_d=3&style=SequentBindingMode), respectively. I'll implement the proposed new behavior for editions ≤ 2021 in another PR.
The tests are split up a bit awkwardly for practical reasons, but I've added new tests from 3 places:
- I got tests for where the typing rules differ from the "Compare" tab of the page linked above. These had to be split up based on where the errors are emitted and how rustfixable they are, so they've ended up in different files to keep tidy. Within each file, though, the order of the tests matches the order the typing differences appear in that comparison (as of when this was written).
- I used [this other comparison](https://nadrieril.github.io/typing-rust-patterns/?q=%5B%26mut+%26%28mut+x%29%5D%3A+%26mut+%5B%26CT%5D&compare=true&opts2=AQEBAgABAQEBAgIAAQEBAAEBAAABAAA%3D&opts1=AQEBAgEBAQEBAgIAAAAAAAAAAAAAAAA%3D&mode=compare&do_cmp=true&ty_d=3&style=SequentBindingMode) to test the `Deref(EatInner, FallbackToOuter)` rule of the left/"structural"/eat-inner ruleset. These are all in `well-typed-edition-2024.rs`.
- I added some select tests for cases where the new typing rules differ from current stable Rust. I had to be pickier about what I included here, but I tried to make sure each typing rule got some coverage. That said, my approach for these tests was a bit ad-hoc, so I may have missed something.
Relevant tracking issue: #123076
r? ````@ghost````
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[rustdoc] Add sans-serif font setting
Fixes https://github.com/rust-lang/rust/issues/52449.
This PR adds a new setting introducing the possibility to switch to a sans-serif font (`Fira Sans`) for the text.
Can be tested [here](https://rustdoc.crud.net/imperio/sans-serif/std/index.html).
cc ```@rust-lang/rustdoc-frontend```
r? ```@notriddle```
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Rollup of 5 pull requests
Successful merges:
- #135847 (optimize slice::ptr_rotate for small rotates)
- #136215 (btree/node.rs: remove incorrect comment from pop_internal_level docs)
- #136252 (spastorino back from vacations)
- #136254 (Rustc dev guide subtree update)
- #136259 (Cleanup docs for Allocator)
r? `@ghost`
`@rustbot` modify labels: rollup
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Rustc dev guide subtree update
r? `@Kobzol`
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miri: optimize zeroed alloc
When allocating zero-initialized memory in MIR interpretation, rustc allocates zeroed memory, marks it as initialized and then re-zeroes it. Remove the last step.
I don't expect this to have much of an effect on performance normally, but in my case in which I'm creating a large allocation via mmap it gets in the way.
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tests: Port `translation` to rmake.rs
Part of #121876.
This PR partially supersedes #129011 and is co-authored with `@Oneirical.`
## Summary
This PR ports `tests/run-make/translation` to rmake.rs. Notable changes from the Makefile version include:
- We now actually fail if the rustc invocations fail... The Makefile did not have `SHELL=/bin/bash -o pipefail`, so all the piped rustc invocations to grep vacuously succeeded, even if the broken ftl test case actually regressed over time and ICEs on current master.
- That test case is converted to assert it fails with a FIXME backlinking to #135817.
- The test coverage is expanded to not ignore windows. Instead, the test now uses symlink capability detection to gate test execution.
- Added some backlinks to relevant tracking issues and the initial translation infra implementation PR.
## Review advice
Best reviewed commit-by-commit.
r? compiler
try-job: aarch64-apple
try-job: i686-mingw
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Merge `PatKind::Path` into `PatKind::Expr`
Follow-up to #134228
We always had a duplication where `Path`s could be represented as `PatKind::Path` or `PatKind::Lit(ExprKind::Path)`. We had to handle both everywhere, and still do after #134228, so I'm removing it now.
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Rollup of 8 pull requests
Successful merges:
- #133382 (Suggest considering casting fn item as fn pointer in more cases)
- #136092 (Test pipes also when not running on Windows and Linux simultaneously)
- #136190 (Remove duplicated code in RISC-V asm bad-reg test)
- #136192 (ci: remove unused windows runner)
- #136205 (Properly check that array length is valid type during built-in unsizing in index)
- #136211 (Update mdbook to 0.4.44)
- #136212 (Tweak `&mut self` suggestion span)
- #136214 (Make crate AST mutation accessible for driver callback)
r? `@ghost`
`@rustbot` modify labels: rollup
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Make crate AST mutation accessible for driver callback
Following #134130, this brings back the ability to mutate AST before lowering.
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Update mdbook to 0.4.44
Updates to mdbook 0.4.44.
Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0444
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ci: remove unused windows runner
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Rollup of 9 pull requests
Successful merges:
- #136121 (Deduplicate operand creation between scalars, non-scalars and string patterns)
- #136134 (Fix SIMD codegen tests on LLVM 20)
- #136153 (Locate asan-odr-win with other sanitizer tests)
- #136161 (rustdoc: add nobuild typescript checking to our JS)
- #136166 (interpret: is_alloc_live: check global allocs last)
- #136168 (GCI: Don't try to eval / collect mono items inside overly generic free const items)
- #136170 (Reject unsound toggling of Arm atomics-32 target feature)
- #136176 (Render pattern types nicely in mir dumps)
- #136186 (uefi: process: Fix args)
r? `@ghost`
`@rustbot` modify labels: rollup
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Subtree update of `rust-analyzer`
r? `@ghost`
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Co-authored-by: Oneirical <manchot@videotron.ca>
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Convenience helper for `rustc --print=sysroot`.
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rustdoc: add nobuild typescript checking to our JS
By nobuild, I mean that the type annotations are all [in comments], not in the "native" typescript syntax. This is a bit uglier, but it lets you rapid-prototype without tsc, works with all the native browser debugging tools, and keeps Node out of Rust's bootstrap chain.
[in comments]: https://news.ycombinator.com/item?id=35892250
This pull request mostly just adds ts-ignore annotations and type declarations. To actually take good advantage of typescript, we'll want to "burn down" this pile of unsafe code until we eventually have a version with almost none of these.
This PR also adds tsc to the mingw-check Dockerfile, so that it can't fall out of date like the Closure annotations did.
https://rust-lang.zulipchat.com/#narrow/channel/266220-t-rustdoc/topic/typescript
r? `@GuillaumeGomez` `@lolbinarycat`
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Add a link to declare_lint! macro doc in diagnostics.md
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Refactor FnKind variant to hold &Fn
Pulling the change suggested in #128045 to reduce the impact of changing `Fn` item.
r? `@oli-obk`
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r=workingjubilee
ABI-required target features: warn when they are missing in base CPU
Part of https://github.com/rust-lang/rust/pull/135408:
instead of adding ABI-required features to the target we build for LLVM, check that they are already there. Crucially we check this after applying `-Ctarget-cpu` and `-Ctarget-feature`, by reading `sess.unstable_target_features`. This means we can tweak the ABI target feature check without changing the behavior for any existing user; they will get warnings but the target features behave as before.
The test changes here show that we are un-doing the "add all required target features" part. Without the full #135408, there is no way to take a way an ABI-required target feature with `-Ctarget-cpu`, so we cannot yet test that part.
Cc ``@workingjubilee``
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Update books
## rust-lang/book
3 commits in 82a4a49789bc96db1a1b2a210b4c5ed7c9ef0c0d..fa312a343fbff01bc6cef393e326817f70719813
2025-01-22 17:14:29 UTC to 2025-01-22 15:09:26 UTC
- chore: reformat src with dprint (rust-lang/book#4211)
- Redirects: get rid of the weird gap in Ch. 20 sections! (rust-lang/book#4209)
- Document that `use` is also for `precise capturing` (rust-lang/book#4210)
## rust-lang/edition-guide
1 commits in d56e0f3a0656b7702ca466d4b191e16c28262b82..4ed5a1a4a2a7ecc2e529a5baaef04f7bc7917eda
2025-01-21 21:39:56 UTC to 2025-01-21 21:39:56 UTC
- Add alternatives for static-mut-refs (rust-lang/edition-guide#354)
## rust-lang/nomicon
3 commits in 625b200e5b33a5af35589db0bc454203a3d46d20..bc2298865544695c63454fc1f9f98a3dc22e9948
2025-01-23 19:01:24 UTC to 2025-01-20 14:37:52 UTC
- corrected grammatical error. (rust-lang/nomicon#477)
- Remove `#![start]` attribute (rust-lang/nomicon#478)
- Update guidance on uninitialized fields to use &raw mut instead of addr_of_mut! (rust-lang/nomicon#476)
## rust-lang/reference
10 commits in 293af991003772bdccf2d6b980182d84dd055942..93b921c7d3213d38d920f7f905a3bec093d2217d
2025-01-25 21:59:01 UTC to 2025-01-14 17:28:04 UTC
- distinct 'static' items never overlap (rust-lang/reference#1657)
- Change `'_static` to `'static` as an invalid lifetime parameter name (rust-lang/reference#1721)
- reword reference about inert attributes (rust-lang/reference#1719)
- Provide a better error message for broken links in mdbook-spec (rust-lang/reference#1716)
- Remove unstable vectorcall (rust-lang/reference#1717)
- Move the function pointer example (rust-lang/reference#1718)
- references and Box must be non-null (rust-lang/reference#1715)
- Fix filename for theme customization (rust-lang/reference#1711)
- Add Identifier Syntax to Several Chapters (rust-lang/reference#1597)
- move r[rules] to the left of the main body, using a grid (rust-lang/reference#1710)
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Rename `Piece::String` to `Piece::Lit`
This renames Piece::String to Piece::Lit to avoid shadowing std::string::String and removes "pub use Piece::*;".
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r=lcnr
Do not consider child bound assumptions for rigid alias
r? lcnr
See first commit for the important details. For second commit, I also stacked a somewhat opinionated name change, though I can separate that if needed.
Fixes https://github.com/rust-lang/trait-system-refactor-initiative/issues/149
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Clippy subtree update
r? `@Manishearth`
Quite a bit late, as I was on vacation and then we had an issue in MacOS CI after the sync.
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Rollup of 9 pull requests
Successful merges:
- #135869 (Make docs for AtomicUsize::from_mut platform-independent)
- #135892 (-Znext-solver: "normalize" signature before checking it mentions self in `deduce_closure_signature`)
- #136055 (Implement MIR const trait stability checks)
- #136066 (Pass spans to `perform_locally_in_new_solver`)
- #136071 ([Clippy] Add vec_reserve & vecdeque_reserve diagnostic items)
- #136124 (Arbitrary self types v2: explain test.)
- #136149 (Flip the `rustc-rayon`/`indexmap` dependency order)
- #136173 (Update comments and sort target_arch in c_char_definition)
- #136178 (Update username in build helper example)
r? `@ghost`
`@rustbot` modify labels: rollup
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Updates to mdbook 0.4.44.
Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0444
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clippy-subtree-update
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Apply LTO config to rustdoc
Before, the LTO configuration from `config.toml` was not applied to `rustdoc`. This provides a small perf. and binary size [win](https://github.com/rust-lang/rust/pull/112049#issuecomment-2605131041) for doc builds.
Since this is configured with Cargo profiles and not rustflags, it should not break tool build cache (https://github.com/rust-lang/rust/pull/131155). I tried to run `x test miri`, `x test rustdoc` and `x test miri` and nothing was rebuilt.
r? `@onur-ozkan`
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