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Remove header field from clean::Function
Fixes https://github.com/rust-lang/rust/issues/89673.
This is another take on https://github.com/rust-lang/rust/issues/89673 (compared to https://github.com/rust-lang/rust/pull/91217) but very different on the approach: I moved the header call in one place but still require to have the `clean::Item` so I can use the `DefId` to get what is missing.
cc `@jyn514` (you reviewed the original so maybe you want to take a look?)
r? `@camelid`
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r=GuillaumeGomez,camelid,jsha
rustdoc: add 🔒 to items with restricted visibility
This change marks items with restricted visibility with 🔒 when building with `--document-private-items`:
<img width="278" alt="Screen Shot 2022-03-20 at 23 50 24" src="https://user-images.githubusercontent.com/509209/159189513-9e4b09bb-6785-41a5-bfe2-df02f83f8641.png">
There also appears a “Restricted Visibility” tooltip when hovering over the emoji.
---
The original PR for reference:
This change makes private items slightly transparent (similar to `unstable` items in rustc):
<img width="272" alt="Screen Shot 2022-03-16 at 22 17 43" src="https://user-images.githubusercontent.com/509209/158692627-a1f6f5ec-e043-4aa2-9352-8d2b15c31c08.png">
I found myself using `--document-private-items` a lot recently because I find the documentation of private internals quite helpful when working on a larger project. However, not being able to distinguish private from public items (see #87785) when looking at the documentation makes this somewhat cumbersome.
This PR addresses the third suggestion of issue #87785 by marking private items typographically. It seems to me that the other suggestions are more involved but this is at least a first step.
A private item is also made slightly transparent in the path displayed in the header of a page:
<img width="467" alt="Screen Shot 2022-03-16 at 22 19 51" src="https://user-images.githubusercontent.com/509209/158692885-0bbd3417-3c0b-486f-b8ab-99c05c6fa7ca.png">
I am looking forward to feedback and suggestions.
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overflow in line numbers
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Signed-off-by: codehorseman <cricis@yeah.net>
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librustdoc: adopt let else in more places
Continuation of #89933, #91018, #91481, #93046, #93590, #94011.
I have extended my clippy lint to also recognize tuple passing and match statements. The diff caused by fixing it is way above 1 thousand lines. Thus, I split it up into multiple pull requests to make reviewing easier. This PR handles librustdoc.
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Fix sidebar elements display
The bug can be seen more easily when the javascript is disabled:

r? `@jsha`
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Improve `AdtDef` interning.
This commit makes `AdtDef` use `Interned`. Much of the commit is tedious
changes to introduce getter functions. The interesting changes are in
`compiler/rustc_middle/src/ty/adt.rs`.
r? `@fee1-dead`
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rustdoc: write directly to buffer in `inner_full_print`
This change avoids several temporary allocations for every argument.
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This commit makes `AdtDef` use `Interned`. Much the commit is tedious
changes to introduce getter functions. The interesting changes are in
`compiler/rustc_middle/src/ty/adt.rs`.
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r=Mark-Simulacrum
Use modern formatting for format! macros
This updates the standard library's documentation to use the new format_args syntax.
The documentation is worthwhile to update as it should be more idiomatic
(particularly for features like this, which are nice for users to get acquainted
with). The general codebase is likely more hassle than benefit to update: it'll
hurt git blame, and generally updates can be done by folks updating the code if
(and when) that makes things more readable with the new format.
A few places in the compiler and library code are updated (mostly just due to
already having been done when this commit was first authored).
`eprintln!("{}", e)` becomes `eprintln!("{e}")`, but `eprintln!("{}", e.kind())` remains untouched.
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Unify impl blocks by wrapping them into a div
The blanket and "auto traits" sections are wrapped into a `div` with an ID. This PR fixes this incoherence by wrapping each impl section (the "deref impl" and the "inherent impl" sections were missing it). It'll also make some tests simpler to write.
r? `````@notriddle`````
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This updates the standard library's documentation to use the new syntax. The
documentation is worthwhile to update as it should be more idiomatic
(particularly for features like this, which are nice for users to get acquainted
with). The general codebase is likely more hassle than benefit to update: it'll
hurt git blame, and generally updates can be done by folks updating the code if
(and when) that makes things more readable with the new format.
A few places in the compiler and library code are updated (mostly just due to
already having been done when this commit was first authored).
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Rollup of 4 pull requests
Successful merges:
- #93350 (libunwind: readd link attrs to _Unwind_Backtrace)
- #93827 (Stabilize const_fn_fn_ptr_basics, const_fn_trait_bound, and const_impl_trait)
- #94696 (Remove whitespaces and use CSS to align line numbers to the right instead)
- #94700 (rustdoc: Update minifier version)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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line numbers to the right
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`Layout` is another type that is sometimes interned, sometimes not, and
we always use references to refer to it so we can't take any advantage
of the uniqueness properties for hashing or equality checks.
This commit renames `Layout` as `LayoutS`, and then introduces a new
`Layout` that is a newtype around an `Interned<LayoutS>`. It also
interns more layouts than before. Previously layouts within layouts
(via the `variants` field) were never interned, but now they are. Hence
the lifetime on the new `Layout` type.
Unlike other interned types, these ones are in `rustc_target` instead of
`rustc_middle`. This reflects the existing structure of the code, which
does layout-specific stuff in `rustc_target` while `TyAndLayout` is
generic over the `Ty`, allowing the type-specific stuff to occur in
`rustc_middle`.
The commit also adds a `HashStable` impl for `Interned`, which was
needed. It hashes the contents, unlike the `Hash` impl which hashes the
pointer.
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r=GuillaumeGomez
Improve rustdoc const bounds
- Rustdoc no longer displays `~const` in trait bounds, because it currently means nothing for stable users, and because we still haven't decided on the final syntax yet.
- Rustdoc will hide trait bounds where the trait is `Drop` AND it is `~const`, i.e. `~const Drop` bounds because it has no effect on stable users as well.
- Because of additional logic that hides the whole `where` statement where it consists of `~const Drop` bounds (so it doesn't display `struct Foo<T>() where ;` like that), bounds that have no trait e.g. `where [T; N+1]: ;` are also hidden.
Cherry-picked from #92433.
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Fix source code pages scroll
To reproduce the bug, go to https://doc.rust-lang.org/nightly/nightly-rustc/src/rustc_ast/ast.rs.html#537-541 and click on the `Path` link. The page won't scroll to the content.
r? `@Urgau`
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Rollup of 10 pull requests
Successful merges:
- #88805 (Clarification of default socket flags)
- #93418 (rustdoc & doc: no `shortcut` for `rel="icon"`)
- #93913 (Remove the everybody loops pass)
- #93965 (Make regular stdio lock() return 'static handles)
- #94339 (ARM: Only allow using d16-d31 with asm! when supported by the target)
- #94404 (Make Ord and PartialOrd opt-out in `newtype_index`)
- #94466 (bootstrap: correct reading of flags for llvm)
- #94572 (Use `HandleOrNull` and `HandleOrInvalid` in the Windows FFI bindings.)
- #94575 (CTFE SwitchInt: update comment)
- #94582 (Fix a bug in `x.py fmt` that prevents some files being formatted.)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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rustdoc & doc: no `shortcut` for `rel="icon"`
According to https://html.spec.whatwg.org/multipage/links.html#rel-icon:
> For historical reasons, the `icon` keyword may be preceded by the keyword "`shortcut`".
And to https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types:
> **Warning:** The `shortcut` link type is often seen before `icon`, but this link type is non-conforming, ignored and **web authors must not use it anymore.**
While it was removed from the Rust logo case a while ago in commit 085679c ("Use theme-adaptive SVG favicon from other Rust sites"), it is still there for the custom logo case.
Also updated a few other instances.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Fix duplicated impl links
Fixes #78701.
The problem is that the blanket impl has the same ID as the other impl, except that we don't derive IDs when we generate the sidebar. We now do.
r? ``@notriddle``
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appearance of the logo
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This change avoids several temporary allocations for every argument.
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rustdoc: Avoid duplicating macros in sidebar
Fixes #93912.
cc ``````@jsha`````` (for the GUI test)
r? ``````@camelid``````
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Even more let_else adoptions
Continuation of #89933, #91018, #91481, #93046, #93590.
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Generate list instead of div items in sidebar
Fixes #92986.
Surprisingly, we didn't have much CSS for this...
[Demo](https://rustdoc.crud.net/imperio/links-in-sidebar/std/index.html).
r? `@jsha`
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