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`rust-lang/book` recently added two mdBook preprocessors. Enable
`rustbook` to use those preprocessors for books where they are requested
by the `book.toml` by adding the preprocessors as path dependencies, and
ignoring them where they are not requested, i.e. by all the books other
than TRPL at present.
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Refactor documentation for Apple targets
Refactor the documentation for Apple targets in `rustc`'s platform support page to make it clear what the supported OS version is and which environment variables are being read (`*_DEPLOYMENT_TARGET` and `SDKROOT`). This fixes https://github.com/rust-lang/rust/issues/124215.
Note that I've expanded the `aarch64-apple-ios-sim` maintainers `@badboy` and `@deg4uss3r` to include being maintainer of all `*-apple-ios-*` targets. If you do not wish to be so, please state that, then I'll explicitly note that in the docs.
Additionally, I've added myself as co-maintainer of most of these targets.
r? `@thomcc`
I think the documentation you've previously written on tvOS is great, have mostly modified it to have a more consistent formatting with the rest of the Apple target.
I recognize that there's quite a few changes here, feel free to ask about any of them!
---
CC `@simlay` `@Nilstrieb`
`@rustbot` label O-apple
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Update books
## rust-lang/book
8 commits in bebcf527e67755a989a1739b7cfaa8f0e6b30040..5e9051f71638aa941cd5dda465e25c61cde9594f
2024-05-16 14:58:56 UTC to 2024-05-07 23:58:22 UTC
- Convert ch01-03-hello-cargo.md Listing 1-2 using `<Listing>` (rust-lang/book#3924)
- infra: fix rendering bug in mdbook-trpl-note (rust-lang/book#3925)
- infra: support `Listing`s without `file-name` (rust-lang/book#3920)
- Add a `<Listing>` preprocessor (rust-lang/book#3918)
- Update explanation according to code listing (rust-lang/book#3916)
- infra: run package tests (rust-lang/book#3915)
- Fix workspace behavior by excluding `listings` (rust-lang/book#3914)
- Backport changes to chapter 8 (rust-lang/book#3913)
## rust-embedded/book
1 commits in 17842ebb050f62e40a4618edeb8e8ee86e758707..dd962bb82865a5284f2404e5234f1e3222b9c022
2024-05-17 23:43:59 UTC to 2024-05-17 23:43:59 UTC
- 'llvm-tools-preview' component is now named 'llvm-tools' (rust-embedded/book#372)
## rust-lang/reference
2 commits in 51817951d0d213a0011f82b62aae02c3b3f2472e..e356977fceaa8591c762312d8d446769166d4b3e
2024-05-10 12:49:15 UTC to 2024-05-07 13:32:57 UTC
- Document inline const/const block expression (rust-lang/reference#1295)
- patterns: include yet unstable exclusive range patterns (rust-lang/reference#1484)
## rust-lang/rust-by-example
7 commits in 229ad13b64d919b12e548d560f06d88963b25cd3..20482893d1a502df72f76762c97aed88854cdf81
2024-05-20 14:36:21 UTC to 2024-05-14 16:17:03 UTC
- Clarify interchangability for From and Into (rust-lang/rust-by-example#1851)
- Update ja.po based on the latest master (rust-lang/rust-by-example#1850)
- Add explicit section link (rust-lang/rust-by-example#1847)
- Adjust translation build on CI (rust-lang/rust-by-example#1849)
- Update mdbook version in CI (rust-lang/rust-by-example#1848)
- Fix some broken links in ja.po (rust-lang/rust-by-example#1844)
- Fix an external link to absolute (rust-lang/rust-by-example#1842)
## rust-lang/rustc-dev-guide
8 commits in 2d1947ff34d50ca46dfe242ad75531a4c429bb52..b6d4a4940bab85cc91eec70cc2e3096dd48da62d
2024-05-17 17:04:58 UTC to 2024-05-09 13:22:03 UTC
- Add a high level explanation of early/late bound params (rust-lang/rustc-dev-guide#1982)
- Fix broken link to "Lowering" (rust-lang/rustc-dev-guide#1981)
- Broken link fix (rust-lang/rustc-dev-guide#1980)
- Add note about how to pick up abandoned PRs (rust-lang/rustc-dev-guide#1977)
- Toc here is overkill (rust-lang/rustc-dev-guide#1976)
- Link to lint `L-*` labels (rust-lang/rustc-dev-guide#1975)
- Update the rustc_interface examples for current rustc (rust-lang/rustc-dev-guide#1974)
- Edit `Parameter Environments`'s url as it has been edited in #1953 (rust-lang/rustc-dev-guide#1973)
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Update `unexpected_cfgs` lint for Cargo new `check-cfg` config
This PR updates the diagnostics output of the `unexpected_cfgs` lint for Cargo new `check-cfg` config.
It's a simple and cost-less alternative to the build-script `cargo::rustc-check-cfg` instruction.
```toml
[lints.rust]
unexpected_cfgs = { level = "warn", check-cfg = ['cfg(foo, values("bar"))'] }
```
This PR also adds a Cargo specific section regarding check-cfg and Cargo inside rustc's book (motivation is described inside the file, but mainly check-cfg is a rustc feature not a Cargo one, Cargo only enabled the feature, it does not own it; T-cargo even considers the `check-cfg` lint config to be an implementation detail).
This PR also updates the links to refer to that sub-page when using Cargo from rustc.
As well as updating the lint doc to refer to the check-cfg docs.
~**Not to be merged before https://github.com/rust-lang/cargo/pull/13913 reaches master!**~ (EDIT: merged in https://github.com/rust-lang/rust/pull/125237)
`@rustbot` label +F-check-cfg
r? `@fmease` *(feel free to roll)*
Fixes https://github.com/rust-lang/rust/issues/124800
cc `@epage` `@weihanglo`
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Add `-` (stdin) support in rustdoc
This PR adds support for the special `-` input which threats the input as coming from *stdin* instead of being a filepath.
Doing this also makes `rustdoc` consistent with `rustc` and ~~every~~ other tools. Full [motivation](https://github.com/rust-lang/rust/pull/124611#issuecomment-2094234876).
Fixes https://github.com/rust-lang/rust/issues/123671
r? `@fmease`
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Update linker-plugin-lto.md to include LLVM 18
I did this manually not via provided script.
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Rollup of 7 pull requests
Successful merges:
- #119838 (style-guide: When breaking binops handle multi-line first operand better)
- #124844 (Use a proper probe for shadowing impl)
- #125047 (Migrate `run-make/issue-14500` to new `rmake.rs` format)
- #125080 (only find segs chain for missing methods when no available candidates)
- #125088 (Uplift `AliasTy` and `AliasTerm`)
- #125100 (Don't do post-method-probe error reporting steps if we're in a suggestion)
- #125118 (Use new utility functions/methods in run-make tests)
r? `@ghost`
`@rustbot` modify labels: rollup
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r=compiler-errors
style-guide: When breaking binops handle multi-line first operand better
Use the indentation of the *last* line of the first operand, not the first.
Fixes https://github.com/rust-lang/style-team/issues/189
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Add v0 symbol mangling for `f16` and `f128`
As discussed at <https://github.com/rust-lang/rust/pull/122106>, use the crate encoding to represent new primitives.
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As discussed at <https://github.com/rust-lang/rust/pull/122106>, use the
crate encoding to represent new primitives.
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Add x86_64-unknown-linux-none target
Adds a freestanding linux binary with no libc dependency. This is useful for writing programs written only in rust. It is also essential for writing low level stuff like libc or a dynamic linker.
Tier 3 policy:
>A tier 3 target must have a designated developer or developers (the "target maintainers") on record to be CCed when issues arise regarding the target. (The mechanism to track and CC such developers may evolve over time.)
I will be the designed maintainer for this target
>Targets must use naming consistent with any existing targets; for instance, a target for the same CPU or OS as an existing Rust target should use the same name for that CPU or OS. Targets should normally use the same names and naming conventions as used elsewhere in the broader ecosystem beyond Rust (such as in other toolchains), unless they have a very good reason to diverge. Changing the name of a target can be highly disruptive, especially once the target reaches a higher tier, so getting the name right is important even for a tier 3 target.
The target triple is consistent with other targets
>Target names should not introduce undue confusion or ambiguity unless absolutely necessary to maintain ecosystem compatibility. For example, if the name of the target makes people extremely likely to form incorrect beliefs about what it targets, the name should be changed or augmented to disambiguate it.
If possible, use only letters, numbers, dashes and underscores for the name. Periods (.) are known to cause issues in Cargo.
There is no confusion with other targets since it explicitly adds "none" at the end instead of omitting the environment
>Tier 3 targets may have unusual requirements to build or use, but must not create legal issues or impose onerous legal terms for the Rust project or for Rust developers or users.
The target does not introduce any unusual requirement
>The target must not introduce license incompatibilities.
There are no license incompatibilities
> Anything added to the Rust repository must be under the standard Rust license (MIT OR Apache-2.0).
Everything added is under that license
>The target must not cause the Rust tools or libraries built for any other host (even when supporting cross-compilation to the target) to depend on any new dependency less permissive than the Rust licensing policy. This applies whether the dependency is a Rust crate that would require adding new license exceptions (as specified by the tidy tool in the rust-lang/rust repository), or whether the dependency is a native library or binary. In other words, the introduction of the target must not cause a user installing or running a version of Rust or the Rust tools to be subject to any new license requirements.
There are no new dependencies
>Compiling, linking, and emitting functional binaries, libraries, or other code for the target (whether hosted on the target itself or cross-compiling from another target) must not depend on proprietary (non-FOSS) libraries. Host tools built for the target itself may depend on the ordinary runtime libraries supplied by the platform and commonly used by other applications built for the target, but those libraries must not be required for code generation for the target; cross-compilation to the target must not require such libraries at all. For instance, rustc built for the target may depend on a common proprietary C runtime library or console output library, but must not depend on a proprietary code generation library or code optimization library. Rust's license permits such combinations, but the Rust project has no interest in maintaining such combinations within the scope of Rust itself, even at tier 3.
There is no proprietary dependencies
>"onerous" here is an intentionally subjective term. At a minimum, "onerous" legal/licensing terms include but are not limited to: non-disclosure requirements, non-compete requirements, contributor license agreements (CLAs) or equivalent, "non-commercial"/"research-only"/etc terms, requirements conditional on the employer or employment of any particular Rust developers, revocable terms, any requirements that create liability for the Rust project or its developers or users, or any requirements that adversely affect the livelihood or prospects of the Rust project or its developers or users.
No such terms exist for this target
>Neither this policy nor any decisions made regarding targets shall create any binding agreement or estoppel by any party. If any member of an approving Rust team serves as one of the maintainers of a target, or has any legal or employment requirement (explicit or implicit) that might affect their decisions regarding a target, they must recuse themselves from any approval decisions regarding the target's tier status, though they may otherwise participate in discussions.
>This requirement does not prevent part or all of this policy from being cited in an explicit contract or work agreement (e.g. to implement or maintain support for a target). This requirement exists to ensure that a developer or team responsible for reviewing and approving a target does not face any legal threats or obligations that would prevent them from freely exercising their judgment in such approval, even if such judgment involves subjective matters or goes beyond the letter of these requirements.
Understood
>Tier 3 targets should attempt to implement as much of the standard libraries as possible and appropriate (core for most targets, alloc for targets that can support dynamic memory allocation, std for targets with an operating system or equivalent layer of system-provided functionality), but may leave some code unimplemented (either unavailable or stubbed out as appropriate), whether because the target makes it impossible to implement or challenging to implement. The authors of pull requests are not obligated to avoid calling any portions of the standard library on the basis of a tier 3 target not implementing those portions.
The target already implements core. It might be possible in the future to add support for alloc and std by leveraging crates such as [origin](https://github.com/sunfishcode/origin/) and [rustix](https://github.com/bytecodealliance/rustix)
> The target must provide documentation for the Rust community explaining how to build for the target, using cross-compilation if possible. If the target supports running binaries, or running tests (even if they do not pass), the documentation must explain how to run such binaries or tests for the target, using emulation if possible or dedicated hardware if necessary.
I believe the proper docs are added
>Tier 3 targets must not impose burden on the authors of pull requests, or other developers in the community, to maintain the target. In particular, do not post comments (automated or manual) on a PR that derail or suggest a block on the PR based on a tier 3 target. Do not send automated messages or notifications (via any medium, including via `@)` to a PR author or others involved with a PR regarding a tier 3 target, unless they have opted into such messages.
> Backlinks such as those generated by the issue/PR tracker when linking to an issue or PR are not considered a violation of this policy, within reason. However, such messages (even on a separate repository) must not generate notifications to anyone involved with a PR who has not requested such notifications.
Understood
> Patches adding or updating tier 3 targets must not break any existing tier 2 or tier 1 target, and must not knowingly break another tier 3 target without approval of either the compiler team or the maintainers of the other tier 3 target.
> In particular, this may come up when working on closely related targets, such as variations of the same architecture with different features. Avoid introducing unconditional uses of features that another variation of the target may not have; use conditional compilation or runtime detection, as appropriate, to let each target run code supported by that target.
No other targets are effected
>Tier 3 targets must be able to produce assembly using at least one of rustc's supported backends from any host target.
The same backends used by other linux targets work without issues
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Co-authored-by: Trevor Gross <t.gross35@gmail.com>
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Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>
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Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>
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Use the indentation of the *last* line of the first operand, not the first.
Fixes https://github.com/rust-lang/style-team/issues/189
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Migrate fuchsia docs from `pm` to `ffx`
The `pm` tool has been deprecated, so this migrates the fuchsia documentation to the new `ffx` based tooling.
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The `pm` tool has been deprecated, so this migrates the fuchsia
documentation to the new `ffx` based tooling.
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Suggested-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>
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Show an example that has bounds.
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In particular, lifetime-generic associated types often have a
`where Self: 'a` bound, which we can format on the same line.
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This commit fixes several issues in the fuchsia-test-runner.py script:
1. Migrate from `pm` to `ffx` for package management, as `pm` is now
deprecated. Furthermore, the `pm` calls used in this script no longer
work at Fuchsia's HEAD. This is the largest change in this commit, and
impacts all steps around repository management (creation and
registration of the repo, as well as package publishing).
2. Allow for `libtest` to be either statically or dynamically linked.
The script assumed it was dynamically linked, but the current Rust
behavior at HEAD is to statically link it.
3. Minor cleanup to use `ffx --machine json` rather than string parsing.
4. Minor cleanup to the docs around the script.
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Rollup of 3 pull requests
Successful merges:
- #124759 (Record impl args in the proof tree in new solver)
- #124809 (borrowck: prepopulate opaque storage more eagerly)
- #124815 (Update books)
r? `@ghost`
`@rustbot` modify labels: rollup
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Make check-cfg docs more user-friendly
This PR improves the `--check-cfg` to make them more user-friendly by:
- explaining the purpose of the feature
- removing the "form" jargon
- making it (bit) less formal and more "friendly"
- making the doc less cluttered
- and by fixing (the width and flags) of the examples
`@rustbot` label +F-check-cfg
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Co-authored-by: Tshepang Mbambo <tshepang@gmail.com>
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Add `rustfmt` cfg to well known cfgs list
This PR adds the `rustfmt` cfg to the well known cfgs list.
Related to https://github.com/rust-lang/rust/issues/124735
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Support Result<T, E> across FFI when niche optimization can be used (v2)
This PR is identical to #122253, which was approved and merged but then removed from master by a force-push due to a [CI bug](https://rust-lang.zulipchat.com/#narrow/stream/242791-t-infra/topic/ci.20broken.3F).
r? ghost
Original PR description:
---
Allow allow enums like `Result<T, E>` to be used across FFI if the T/E can be niche optimized and the non-niche-optimized type is FFI safe.
Implementation of https://github.com/rust-lang/rfcs/pull/3391
Tracking issue: https://github.com/rust-lang/rust/issues/110503
Additional ABI and codegen tests were added in https://github.com/rust-lang/rust/pull/115372
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- Fixed std support in top-level docs.
- Added `*-apple-darwin` docs.
- Added `i686-apple-darwin` docs.
- Moved `aarch64-apple-ios-sim` to `*-apple-ios` and document all the
iOS targets there.
- Added `*-apple-ios-macabi` docs.
- Add myself (madsmtm) as co-maintainer of most of these targets.
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