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Always display stability version even if it's the same as the containing item
Fixes https://github.com/rust-lang/rust/issues/118439.
Currently, if the containing item's version is the same as the item's version (like a method), we don't display it on the item.
This was something done on purpose as you can see [here](https://github.com/rust-lang/rust/blob/e9b7bf011478aa8c19ac49afc99853a66ba04319/src/librustdoc/html/render/mod.rs#L949-L955). It was implemented in https://github.com/rust-lang/rust/pull/30686.
I think we should change this because on pages with a lot of items, if someone arrives (through the search or a link) to an item far below the page, they won't know the stability version unless they scroll to the top, which isn't great.
You can see the result [here](https://rustdoc.crud.net/imperio/display-stability-version/std/pin/struct.Pin.html#method.new).
r? `@notriddle`
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Simplify `static_assert_size`s.
We want to run them on all 64-bit platforms.
r? `@ghost`
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We want to run them on all 64-bit platforms.
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Qualifier tweaking
Adding and removing qualifiers in some cases that make things nicer. Details in individual commits.
r? `@compiler-errors`
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In some cases `DUMMY_SP` is already imported. In other cases this commit
adds the necessary import, in files where `DUMMY_SP` is used more than
once.
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Correctly handle inlining of doc hidden foreign items
Fixes #123435.
In case a foreign item has doc(hidden) attribute, we simply merged its attributes with the re-export's, making it being removed once in the `strip_hidden` pass.
The solution was to use the same as for local reexported items: merge attributes, but not some of them (like `doc(hidden)`).
I originally checked if we could simply update `Item::is_doc_hidden` method to use `self.inline_stmt_id.is_some_and(|def_id| tcx.is_doc_hidden(def_id))` but unfortunately, it added (local) items that shouldn't be inlined. At least it unifies local and foreign items inlining, which I think is the best course of action here.
r? `@notriddle`
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fmease:rustdoc-synth-auto-yeet-item-param-env-clauses, r=GuillaumeGomez
rustdoc: synthetic auto: filter out clauses from the implementor's ParamEnv
... not just the elaborated clauses.
Fixes another regression introduced by me in #123340, oops!
Fixes https://github.com/rust-lang/rust/pull/123340#issuecomment-2034195786, cc ``@tamird.``
An earlier local iteration of branch `rustdoc-simplify-auto-trait-impl-synth` (PR #123340) contained a fix for issue #111101 before I decided to limit the scope. I must've introduced this bug when manually reverting that part of the code.
r? ``@GuillaumeGomez`` or rustdoc
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rustdoc: slightly clean up the synthesis of blanket impls
Small follow-up to #123340 as promised in https://github.com/rust-lang/rust/pull/123340#discussion_r1546918604. No functional changes whatsoever.
* inline the over-engineered “type namespace” (struct) `BlanketImplFinder` just like I did with `AutoTraitFinder` in #123340
* use the new `synthesize_*` terminology over the old nondescript / misleading `get_*` one
* inline a `use super::*;` (not super modular, lead to `clean/mod.rs` (!) accumulating cruft)
* use `tracing` properly
r? GuillaumeGomez or rustdoc
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not just the ones from the elaborated clauses.
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Emit an error when `rustc_doc_primitive` has an unknown value
Currently rustdoc silently does nothing. Change this to raise an error instead.
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Currently rustdoc silently does nothing if it isn't aware of the
specified primitive type. Change this to raise an error instead.
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Fix a few places where these primitives were missing from librustdoc.
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Add aarch64-apple-visionos and aarch64-apple-visionos-sim tier 3 targets
Introduces `aarch64-apple-visionos` and `aarch64-apple-visionos-sim` as tier 3 targets. This allows native development for the Apple Vision Pro's visionOS platform.
This work has been tracked in https://github.com/rust-lang/compiler-team/issues/642. There is a corresponding `libc` change https://github.com/rust-lang/libc/pull/3568 that is not required for merge.
Ideally we would be able to incorporate [this change](https://github.com/gimli-rs/object/pull/626) to the `object` crate, but the author has stated that a release will not be cut for quite a while. Therefore, the two locations that would reference the xrOS constant from `object` are hardcoded to their MachO values of 11 and 12, accompanied by TODOs to mark the code as needing change. I am open to suggestions on what to do here to get this checked in.
# Tier 3 Target Policy
At this tier, the Rust project provides no official support for a target, so we place minimal requirements on the introduction of targets.
> 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.)
See [src/doc/rustc/src/platform-support/apple-visionos.md](https://github.com/rust-lang/rust/blob/e88379034a0fe7d90a8f305bbaf4ad66dd2ce8dc/src/doc/rustc/src/platform-support/apple-visionos.md)
> 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.
> * 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.
This naming scheme matches `$ARCH-$VENDOR-$OS-$ABI` which is matches the iOS Apple Silicon simulator (`aarch64-apple-ios-sim`) and other Apple targets.
> 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 must not introduce license incompatibilities.
> - Anything added to the Rust repository must be under the standard Rust license (`MIT OR Apache-2.0`).
> - 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 besubject to any new license requirements.
> - 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.
> - "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.
This contribution is fully available under the standard Rust license with no additional legal restrictions whatsoever. This PR does not introduce any new dependency less permissive than the Rust license policy.
The new targets do not depend on proprietary libraries.
> 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.
This new target mirrors the standard library for watchOS and iOS, with minor divergences.
> 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.
Documentation is provided in [src/doc/rustc/src/platform-support/apple-visionos.md](https://github.com/rust-lang/rust/blob/e88379034a0fe7d90a8f305bbaf4ad66dd2ce8dc/src/doc/rustc/src/platform-support/apple-visionos.md)
> 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.
> 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.
> 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.
I acknowledge these requirements and intend to ensure that they are met.
This target does not touch any existing tier 2 or tier 1 targets and should not break any other targets.
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attributes
with the re-export's, making it being removed once in the `strip_hidden` pass.
The solution was to use the same as for local reexported items: merge attributes,
but not some of them (like `doc(hidden)`).
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Since we have a `DefiningAnchor::Error`, we will reject registering hidden types already
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This includes updating astconv-related items and a few local variables.
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Stop using `box PAT` syntax for deref patterns, as it's misleading and
also causes their semantics being tangled up.
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Move verbose logic to a function
Minor renaming
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Visually mark 👻hidden👻 items with document-hidden-items
Fixes #122485
This adds a 👻 in the item list (much like the :lock: used for private items), and also shows `#[doc(hidden)]` in the code view, where `pub(crate)` etc gets shown for private items.
This does not do anything for enum variants, if people have ideas. I think we can just show the attribute.
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Also replace a few `hir_node()` calls with `hir_node_by_def_id()`
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Existing names for values of this type are `sess`, `parse_sess`,
`parse_session`, and `ps`. `sess` is particularly annoying because
that's also used for `Session` values, which are often co-located, and
it can be difficult to know which type a value named `sess` refers to.
(That annoyance is the main motivation for this change.) `psess` is nice
and short, which is good for a name used this much.
The commit also renames some `parse_sess_created` values as
`psess_created`.
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It's always empty.
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Add newtypes for bool fields/params/return types
Fixed all the cases of this found with some simple searches for `*/ bool` and `bool /*`; probably many more
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bound regions
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Implement intrinsics with fallback bodies
fixes #93145 (though we can port many more intrinsics)
cc #63585
The way this works is that the backend logic for generating custom code for intrinsics has been made fallible. The only failure path is "this intrinsic is unknown". The `Instance` (that was `InstanceDef::Intrinsic`) then gets converted to `InstanceDef::Item`, which represents the fallback body. A regular function call to that body is then codegenned. This is currently implemented for
* codegen_ssa (so llvm and gcc)
* codegen_cranelift
other backends will need to adjust, but they can just keep doing what they were doing if they prefer (though adding new intrinsics to the compiler will then require them to implement them, instead of getting the fallback body).
cc `@scottmcm` `@WaffleLapkin`
### todo
* [ ] miri support
* [x] default intrinsic name to name of function instead of requiring it to be specified in attribute
* [x] make sure that the bodies are always available (must be collected for metadata)
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r=GuillaumeGomez
rustdoc: cross-crate re-exports: correctly render late-bound params in source order even if early-bound params are present
r? ghost
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source order even if early-bound params are present
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rustdoc: replace `clean::InstantiationParam` with `clean::GenericArg`
Probably better known as `SubstParam` (until #120958 which should've probably renamed it to `InstantiatedParam` but anyways).
It doesn't make any sense to me why it should exist as a separate type. `GenericArg` is exactly what we want here anyways from a semantic perspective. Both have the same size btw.
I also took the liberty of doing some drive-by cleanups.
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r=GuillaumeGomez
rustdoc: Fix handling of doc_auto_cfg feature for cfg attributes on glob reexport
This is a follow-up of #120501 and a part of https://github.com/rust-lang/rust/issues/120487.
r? `@notriddle`
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Dejargonize `subst`
In favor of #110793, replace almost every occurence of `subst` and `substitution` from rustc codes, but they still remains in subtrees under `src/tools/` like clippy and test codes (I'd like to replace them after this)
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