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Rollup of 13 pull requests
Successful merges:
- #103842 (Adding Fuchsia compiler testing script, docs)
- #104354 (Remove leading newlines from `NonZero*` doc examples)
- #104372 (Update compiler-builtins)
- #104380 (rustdoc: remove unused CSS `code { opacity: 1 }`)
- #104381 (Remove dead NoneError diagnostic handling)
- #104383 (Remove unused symbols and diagnostic items)
- #104391 (Deriving cleanups)
- #104403 (Specify language of code comment to generate document)
- #104404 (Fix missing minification for static files)
- #104413 ([llvm-wrapper] adapt for LLVM API change)
- #104415 (rustdoc: fix corner case in search keyboard commands)
- #104422 (Fix suggest associated call syntax)
- #104426 (Add test for #102154)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Add test for #102154
Closes #102154
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compiler-errors:fix-suggest_associated_call_syntax, r=BoxyUwU
Fix suggest associated call syntax
Fixes #104412
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Bump chalk to v0.87
1. Removes `ReEmpty` from chalk
2. Adds support for the `std::marker::Tuple` trait
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rustdoc: Resolve doc links in external traits having local impls
For external impls it was done in https://github.com/rust-lang/rust/pull/103192 right away, but the local impl case was forgotten.
Fixes https://github.com/rust-lang/rust/issues/104145.
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r=davidtwco
Don't ICE with inline const errors during MIR build
Fixes #104277
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Don't print full paths in overlap errors
We don't print the full path in other diagnostics -- I don't think it particularly helps with the error message. I also delayed the printing until actually needing to render the error message.
r? diagnostics
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Recover from function pointer types with generic parameter list
Give a more helpful error when encountering function pointer types with a generic parameter list like `fn<'a>(&'a str) -> bool` or `fn<T>(T) -> T` and suggest moving lifetime parameters to a `for<>` parameter list.
I've added a bunch of extra code to properly handle (unlikely?) corner cases like `for<'a> fn<'b>()` (where there already exists a `for<>` parameter list) correctly suggesting `for<'a, 'b> fn()` (merging the lists). If you deem this useless, I can simplify the code by suggesting nothing at all in this case.
I am quite open to suggestions regarding the wording of the diagnostic messages.
Fixes #103487.
``@rustbot`` label A-diagnostics
r? diagnostics
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Regression test for coercion of mut-ref to dyn-star
Closes #102430
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Add a few known-bug tests
The labels of these tests should be changed from `S-bug-has-mcve` to `S-bug-has-test` once this is merged.
cc:
#101518
#99492
#90950
#89196
#104034
#101350
#103705
#103899
I couldn't reproduce the failures in #101962 and #100772 (so either these have started passing, or I didn't repro properly), so leaving those out for now.
#102065 was a bit more complicated, since it uses `rustc_private` and I didn't want to mess with that.
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llvm: dwo only emitted when object code emitted
Fixes #103932.
`CompiledModule` should not think a DWARF object was emitted when a bitcode-only compilation has happened, this can confuse archive file creation (which expects to create an archive containing non-existent dwo files).
r? ``````@michaelwoerister``````
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Rollup of 5 pull requests
Successful merges:
- #103996 (Add small clarification around using pointers derived from references)
- #104315 (Improve spans with `use crate::{self}`)
- #104320 (Use `derive_const` and rm manual StructuralEq impl)
- #104357 (add is_sized method on Abi and Layout, and use it)
- #104365 (Add x tool to triagebot)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Improve spans with `use crate::{self}`
Fixes #104276.
The error becomes:
```
error: crate root imports need to be explicitly named: `use crate as name;`
--> src/lib.rs.rs:1:13
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1 | use crate::{self};
| ^^^^
warning: unused import: `self`
--> src/lib.rs:1:13
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1 | use crate::{self};
| ^^^^
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= note: `#[warn(unused_imports)]` on by default
```
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r=notriddle
Fix missing reexports' doc comments
Fixes #81893.
The issue was that an import directly "links" to the target without the intermediate imports. Unfortunately, to fix this bug we need to go through them one by one. To do so, I take the import path direct parent (so `b` in `a::b::c`) and then look for `c` into it.
r? `@notriddle`
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Rollup of 5 pull requests
Successful merges:
- #103650 (rustdoc: change `.src-line-numbers > span` to `.src-line-numbers > a`)
- #104177 (rustdoc: use consistent "popover" styling for notable traits)
- #104318 (Move tests)
- #104323 (rustdoc: remove no-op CSS `.scrape-help { background: transparent }`)
- #104345 (Fix up a Fluent message)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix up a Fluent message
Fix up a Fluent message which contained arrows `->` after [selectors](https://projectfluent.org/fluent/guide/selectors.html). The original author probably thought that they were required as part of the selector syntax but in reality they were interpreted as literal text and actually showed up in the emitted diagnostic.
This wasn't caught during the diagnostic migration since the branch constructing the diagnostic in question (`rustc_infer::errors::LifetimeMismatchLabels::Normal`) was not exercised by the UI test suite. I've added two more test cases to do so (one testing `LifetimeMismatchLabels::Normal` where `hir_equal == true` and one where `hir_equal == false`).
Diff visualizing the `->` bug (`master` vs `fix-up-a-fluent-message`):
```diff
error[E0623]: lifetime mismatch
--> src/test/ui/implied-bounds/hrlt-implied-trait-bounds-guard.rs:39:30
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39 | fn badboi3<'in_, 'out, T>(a: Foo<'in_, 'out, (&'in_ T, &'out T)>, sadness: &'in_ T) {
| ^^^^^^^^^^^^^^^^^-------^^-------^^
| | |
| | these two types are declared with different lifetimes...
- | ...but data-> from `a` flows-> into `a` here
+ | ...but data from `a` flows into `a` here
```
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Move tests
r? `@petrochenkov`
https://github.com/rust-lang/rust/pull/46521 -> enum-discriminant
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r=GuillaumeGomez
rustdoc: use consistent "popover" styling for notable traits
Follow-up to #104129
Fixes https://github.com/rust-lang/rust/issues/104313.
Preview: https://notriddle.com/notriddle-rustdoc-demos/js-notable-trait-v2/std/iter/trait.Iterator.html#method.step_by
## Before
## After
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rustdoc: change `.src-line-numbers > span` to `.src-line-numbers > a`
Example: https://notriddle.com/notriddle-rustdoc-demos/line-anchors/test_dingus/fn.test.html
This allows people to treat them like real links, such as right-click to copy URL, and makes the line numbers in a scraped example work at all, when before this commit was added, they had the clickable pointer cursor but did not actually do anything when clicked.
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Hash spans when interning types
Ignoring hash for spans creates an inconsistency between the `Hash` impl for `WithStableHash`, which takes them into account, and the `HashStable` impl which does not.
cc `@compiler-errors`
Fixes https://github.com/rust-lang/rust/issues/104271
Fixes https://github.com/rust-lang/rust/issues/104255
Fixes https://github.com/rust-lang/rust/issues/104238
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linker: Refactoring and fixes to native library linking
This PR contains a bunch of code cleanup and comment rearrangements + 2 fixes for `-Zpacked-bundled-libs`.
It's better to look at individual commits.
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Adjacent identical native libraries are no longer deduplicated if they come from different crates
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Rollup of 8 pull requests
Successful merges:
- #104110 (prevent uninitialized access in black_box for zero-sized-types)
- #104117 (Mark `trait_upcasting` feature no longer incomplete.)
- #104144 (Suggest removing unnecessary `.` to use a floating point literal)
- #104250 (Migrate no result page link color to CSS variables)
- #104261 (More accurately report error when formal and expected signature types differ)
- #104263 (Add a reference to ilog2 in leading_zeros integer docs)
- #104308 (Remove the old `ValidAlign` name)
- #104319 (Fix non clickable source link)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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r=notriddle
Fix non clickable source link
Fixes https://github.com/rust-lang/rust/issues/104313.
It was also fixed in https://github.com/rust-lang/rust/pull/104177. If https://github.com/rust-lang/rust/pull/104177 is merged first, I'll simply remove the first commit to keep the test.
r? ``@notriddle``
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More accurately report error when formal and expected signature types differ
Fixes #104242
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r=notriddle
Migrate no result page link color to CSS variables
r? ``@notriddle``
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Suggest removing unnecessary `.` to use a floating point literal
Fixes a part of #101883
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Mark `trait_upcasting` feature no longer incomplete.
This marks the `trait_upcasting` feature no longer incomplete since #101336 has been settled for a little while.
r? ``````@jackh726``````
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prevent uninitialized access in black_box for zero-sized-types
Don't read the pointer location in black_box for zero sized types, just emit a memory clobber instead. Addresses https://github.com/rust-lang/rust/issues/103304 when rust is build against LLVM at HEAD.
Zulip thread: https://rust-lang.zulipchat.com/#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/.28with.20llvm.20at.20HEAD.29.3A.20msan.20error.20in.20core.3A.3Ahint.3A.3Ablack_box
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Delay `include_bytes` to AST lowering
Hopefully addresses #65818.
This PR introduces a new `ExprKind::IncludedBytes` which stores the path and bytes of a file included with `include_bytes!()`. We can then create a literal from the bytes during AST lowering, which means we don't need to escape the bytes into valid UTF8 which is the cause of most of the overhead of embedding large binary blobs.
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Add tier 3 no_std AArch64/x86_64 support for the QNX Neutrino RTOS
This change allows to compile `no_std` applications for the QNX Neutrino Real-time operating system for ARM 64 bit CPUs.
Tested with QNX Neutrino 7.1.
Partially discussed in [zulip](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Adding.20QNX.20as.20target).
---
> ## 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 proposed new tier 3 target must be reviewed and approved by a member of the
compiler team based on these requirements. The reviewer may choose to gauge
broader compiler team consensus via a [Major Change Proposal (MCP)][MCP].
>
>A proposed target or target-specific patch that substantially changes code
shared with other targets (not just target-specific code) must be reviewed and
approved by the appropriate team for that shared code before acceptance.
>
>- 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 also nto-qnx.md; designated developers are:
- Florian Bartels, `Florian.Bartels@elektrobit.com`, https://github.com/flba-eb
- Tristan Roach, `TRoach@blackberry.com`, https://github.com/gh-tr
> - 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.
`aarch64-unknown-nto-qnx7.1.0` and `x86_64-pc-nto-qnx7.1.0` have been chosen as these
strings are used in the official QNX Neutrino toolchain (for `C`/`C++`). It should also
harmonize with the other Rust targets.
The version (`7.1.0 `) is needed because libc needs to distinguish between different
versions (`target_env` is set to `710` for QNX Neutrino 7.1): For example, functions are removed from 7.0
to 7.1, sometimes the signature of functions is slightly changed or size/alignment of structs.
I'm expecting the same for future versions.
This works very well in e.g. `libc` (tested with 7.0 which I'm not going to support).
> - 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.
No issue as far as I can see.
> - Anything added to the Rust repository must be under the standard Rust
license (`MIT OR Apache-2.0`).
Ok
> - 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.
No change for host tools. When cross-compiling for QNX Neutrino, the compiler/linker
driver "qcc" is called. It should be possible (but not tested) to use other
(OSS) compilers/linkers to produce working binaries.
> - 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.
Only rustc is required for code generation (i.e. no additional libraries to
generate code). Linking of executables requires the ordinary runtime libraries
`crt` and `libc`.
> - "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.
>- 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.
I see no issues with any of the above.
>- 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.
`core` and `alloc` should be working (no change required). `std` implementation
is ongoing and will be provided separately.
>- 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.
see nto-qnx.md
>- 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.
Ok
>- 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.
Ok
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Rollup of 7 pull requests
Successful merges:
- #102049 (Add the `#[derive_const]` attribute)
- #103970 (Unhide unknown spans)
- #104206 (Remove `save_and_restore_in_snapshot_flag`, use `ObligationCtxt` more)
- #104214 (Emit error in `collecting_trait_impl_trait_tys` on mismatched signatures)
- #104267 (rustdoc: use checkbox instead of switch for settings toggles)
- #104302 (Update cargo)
- #104303 (UI tests can be assigned to T-compiler)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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rustdoc: use checkbox instead of switch for settings toggles
Preview: http://notriddle.com/notriddle-rustdoc-demos/checkbox/test_dingus/index.html
## Before
## After
## Description
The switch ("slider") is designed to give the application a "physical" feel, but nothing else in here really followed through. They didn't support the "flick" gesture that real iOS switches support, and the radio buttons that were also used in Rustdoc Settings were a more "classic" form element anyway.
Also, while switches are the exclusive toggle design on iOS (since [Apple HIG] reserves checkboxes for Mac only), the [Google Material] guidelines say that lists of switches are bad, and you should just use check boxes.
[Apple HIG]: https://developer.apple.com/design/human-interface-guidelines/components/selection-and-input/toggles
[Google Material]: https://m3.material.io/components/checkbox/guidelines#6902f23d-ceba-4b19-ae3b-b78b9b01d185
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Emit error in `collecting_trait_impl_trait_tys` on mismatched signatures
Previously, a `delay_span_bug` was isssued, failing normalization. This create a `TyKind::Error` in the signature, which caused `compare_predicate_entailment` to swallow its signature mismatch error, causing ICEs because no error was emitted.
fixes #104183
r? ``@compiler-errors``
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Unhide unknown spans
r? ```@estebank```
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Add the `#[derive_const]` attribute
Closes #102371. This is a minimal patchset for the attribute to work. There are no restrictions on what traits this attribute applies to.
r? `````@oli-obk`````
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Resolve lifetimes independently for each item-like.
Now that the heavy-lifting is done on the AST and during lowering, we do not need to perform HIR lifetime resolution on a full item at once. Instead, we can treat each item-like independently, and look at `generics_of` the parent exceptionally for associated items.
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