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Rollup of 9 pull requests
Successful merges:
- #119592 (resolve: Unload speculatively resolved crates before freezing cstore)
- #120103 (Make it so that async-fn-in-trait is compatible with a concrete future in implementation)
- #120206 (hir: Make sure all `HirId`s have corresponding HIR `Node`s)
- #120214 (match lowering: consistently lower bindings deepest-first)
- #120688 (GVN: also turn moves into copies with projections)
- #120702 (docs: also check the inline stmt during redundant link check)
- #120727 (exhaustiveness: Prefer "`0..MAX` not covered" to "`_` not covered")
- #120734 (Add `SubdiagnosticMessageOp` as a trait alias.)
- #120739 (improve pretty printing for associated items in trait objects)
r? `@ghost`
`@rustbot` modify labels: rollup
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docs: also check the inline stmt during redundant link check
Fixes #120444
This issue was brought about by querying `root::webdavfs::A`, a key that doesn't exist in `doc_link_resolutions`. To avoid a panic, I've altered the gating mechanism to allow this lint pass to be skipped.
I'm not certain if this is the best solution. An alternative approach might be to leverage other info from the name resolutions instead of `doc_link_resolutions`. After all, all we need is to get the resolution from a combination of `(module, name)`. However, I believe they would yield the same outcome, both skipping this lint.
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hir: Make sure all `HirId`s have corresponding HIR `Node`s
And then remove `tcx.opt_hir_node(hir_id)` in favor of `tcx.hir_node(hir_id)`.
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r=notriddle
Prevent running some code if it is already in the map
I realized that a lot of duplicates were being run through this function. Might be better to prevent them from computing all the information if it's already in the cache.
r? `@notriddle`
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`main_args` calls `from_matches`, which does lots of initialization. If
anything goes wrong, `from_matches` emits an error message and returns
`Err(1)` (or `Err(3)`). `main_args` then turns the `Err(1)` into
`Err(ErrorGuaranteed)`, because that's what `catch_with_exit_code`
requires on error. But `catch_with_exit_code` doesn't do anything with
the `ErrorGuaranteed`, it just exits with `EXIT_FAILURE`.
We can avoid the creation of the `ErrorGuaranteed` (which requires
an undesirable `unchecked_claim_error_was_emitted` call), by changing
`from_matches` to instead eagerly abort if anything goes wrong. The
behaviour from the user's point of view is the same: an early abort with
an `EXIT_FAILURE` exit code.
And we can also simplify `from_matches` to return an `Option` instead of
a `Result`:
- Old `Err(0)` case --> `None`
- Old `Err(_)` case --> fatal error.
This requires similar changes to `ScrapeExamplesOptions::new` and
`load_call_locations`.
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By making non-unicode arguments a fatal error instead of a warning, we
don't need to handle what comes after, which avoids the need for an
`unchecked_claim_error_was_emitted` call.
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Simplify codegen diagnostic handling
Some nice improvements. Details in the individual commit logs.
r? ````@estebank````
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That is, change `diagnostic_outside_of_impl` and
`untranslatable_diagnostic` from `allow` to `deny`, because more than
half of the compiler has be converted to use translated diagnostics.
This commit removes more `deny` attributes than it adds `allow`
attributes, which proves that this change is warranted.
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All the other `emit`/`emit_diagnostic` methods were recently made
consuming (e.g. #119606), but this one wasn't. But it makes sense to.
Much of this is straightforward, and lots of `clone` calls are avoided.
There are a couple of tricky bits.
- `Emitter::primary_span_formatted` no longer takes a `Diagnostic` and
returns a pair. Instead it takes the two fields from `Diagnostic` that
it used (`span` and `suggestions`) as `&mut`, and modifies them. This
is necessary to avoid the cloning of `diag.children` in two emitters.
- `from_errors_diagnostic` is rearranged so various uses of `diag` occur
before the consuming `emit_diagnostic` call.
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rustdoc: trait.impl, type.impl: sort impls to make it not depend on serialization order
Can be tested by running `cargo doc` with different rust versions on some crate and comparing `doc` folders: files in `trait.impl` and `type.impl` will sometimes have different order of impls.
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serialization order
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r=notriddle
rustdoc: Correctly handle attribute merge if this is a glob reexport
Fixes #120487.
The regression was introduced in https://github.com/rust-lang/rust/pull/113091. Only non-glob reexports should have been impacted.
cc `````@Nemo157`````
r? `````@notriddle`````
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r=fmease,notriddle
Improve display of crate name when hovered
Currently when we hover the crate name, the background is stuck to the version and to the logo (when there is one):
I find it very unpleasant so I reduced the padding size and increased the margin (left and top) to keep the same positioning but not making it stuck anymore:
[online docs](https://rustdoc.crud.net/imperio/improve-crate-name-hover/std/index.html)
r? `@notriddle`
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rustdoc: Prevent JS injection from localStorage
It turns out that you can execute arbitrary JavaScript on the rustdocs settings page. Here's how:
1. Open `settings.html` on a rustdocs site.
2. Set "preferred light theme" to "dark" to initialize the corresponding localStorage value.
3. Plant a payload by executing this in your browser's dev console: ``Object.keys(localStorage).forEach(key=>localStorage.setItem(key,`javascript:alert()//*/javascript:javascript:"/*'/*\`/*--></noscript></title></textarea></style></template></noembed></script><html " onmouseover=/*<svg/*/onload=alert()onload=alert()//><svg onload=alert()><svg onload=alert()>*/</style><script>alert()</script><style>`));``
4. Refresh the page -- you should see an alert.
This could be particularly dangerous if rustdocs are deployed on a domain hosting some other application. Malicious code could circumvent `same-origin` policies and do mischievous things with user data.
This change ensures that only defined themes can actually be selected (arbitrary strings from localStorage will not be written to the document), and for good measure sanitizes the theme name.
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hir: Two preparatory changes for #120206
cc https://github.com/rust-lang/rust/pull/120206
r? ```@compiler-errors```
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Error codes are integers, but `String` is used everywhere to represent
them. Gross!
This commit introduces `ErrCode`, an integral newtype for error codes,
replacing `String`. It also introduces a constant for every error code,
e.g. `E0123`, and removes the `error_code!` macro. The constants are
imported wherever used with `use rustc_errors::codes::*`.
With the old code, we have three different ways to specify an error code
at a use point:
```
error_code!(E0123) // macro call
struct_span_code_err!(dcx, span, E0123, "msg"); // bare ident arg to macro call
\#[diag(name, code = "E0123")] // string
struct Diag;
```
With the new code, they all use the `E0123` constant.
```
E0123 // constant
struct_span_code_err!(dcx, span, E0123, "msg"); // constant
\#[diag(name, code = E0123)] // constant
struct Diag;
```
The commit also changes the structure of the error code definitions:
- `rustc_error_codes` now just defines a higher-order macro listing the
used error codes and nothing else.
- Because that's now the only thing in the `rustc_error_codes` crate, I
moved it into the `lib.rs` file and removed the `error_codes.rs` file.
- `rustc_errors` uses that macro to define everything, e.g. the error
code constants and the `DIAGNOSTIC_TABLES`. This is in its new
`codes.rs` file.
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stabilise array methods
Closes #76118
Stabilises the remaining array methods
FCP is yet to be carried out for this
There wasn't a clear consensus on the naming, but all the other alternatives had some flaws as discussed in the tracking issue and there was a silence on this issue for a year
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Bump `askama` version
Ran into this while looking at #112865 and thought it would be useful to fix it now. Some more details in [Zulip](https://rust-lang.zulipchat.com/#narrow/stream/266220-t-rustdoc/topic/Askama.20parser.20changes)
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Small code improvements in `collect_intra_doc_links.rs`
Makes some of the code more readable by shortening it, and removes some unnecessary bounds checks.
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Pack u128 in the compiler to mitigate new alignment
This is based on #116672, adding a new `#[repr(packed(8))]` wrapper on `u128` to avoid changing any of the compiler's size assertions. This is needed in two places:
* `SwitchTargets`, otherwise its `SmallVec<[u128; 1]>` gets padded up to 32 bytes.
* `LitKind::Int`, so that entire `enum` can stay 24 bytes.
* This change definitely has far-reaching effects though, since it's public.
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r=compiler-errors,oli-obk
Fix error counting
There is some messiness in how errors get counted. Here are some cleanups.
r? `@compiler-errors`
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rustdoc: hide modals when resizing the sidebar
Follow-up for
https://github.com/rust-lang/rust/pull/119477#discussion_r1439085011
CC `@lukas-code`
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We have several methods indicating the presence of errors, lint errors,
and delayed bugs. I find it frustrating that it's very unclear which one
you should use in any particular spot. This commit attempts to instill a
basic principle of "use the least general one possible", because that
reflects reality in practice -- `has_errors` is the least general one
and has by far the most uses (esp. via `abort_if_errors`).
Specifics:
- Add some comments giving some usage guidelines.
- Prefer `has_errors` to comparing `err_count` to zero.
- Remove `has_errors_or_span_delayed_bugs` because it's a weird one: in
the cases where we need to count delayed bugs, we should really be
counting lint errors as well.
- Rename `is_compilation_going_to_fail` as
`has_errors_or_lint_errors_or_span_delayed_bugs`, for consistency with
`has_errors` and `has_errors_or_lint_errors`.
- Change a few other `has_errors_or_lint_errors` calls to `has_errors`,
as per the "least general" principle.
This didn't turn out to be as neat as I hoped when I started, but I
think it's still an improvement.
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is implemented on a type alias
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[rustdoc] Allows links in headings
Reopening of https://github.com/rust-lang/rust/pull/94360.
# Explanations
Rustdoc currently doesn't follow the markdown spec on headings: we don't allow links in them. So instead of having headings linking to themselves, this PR generates an anchor on the left side like this:
<details>
<summary>previous version</summary>
</details>
Having the anchor always displayed allows for mobile devices users to be able to have a link to the anchor. The different color used for the anchor itself is the same as links so people notice when looking at it that they can click on it.
You can test it [here](https://rustdoc.crud.net/imperio/links-in-headings/std/index.html).
cc `@camelid`
r? `@notriddle`
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replace `track_errors` usages with bubbling up `ErrorGuaranteed`
more of the same as https://github.com/rust-lang/rust/pull/117449 (removing `track_errors`)
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r=Nilstrieb
Suggest Upgrading Compiler for Gated Features
This PR addresses #117318
I have a few questions:
1. Do we want to specify the current version and release date of the compiler? I have added this in via environment variables, which I found in the code for the rustc cli where it handles the `--version` flag
a. How can I handle the changing message in the tests?
3. Do we want to only show this message when the compiler is old?
a. How can we determine when the compiler is old?
I'll wait until we figure out the message to bless the tests
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Remove unused `ErrorReporting` variant from overflow handling
r? oli-obk
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