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Source code scrollbar
Fixes https://github.com/rust-lang/rust/issues/109865.
You can test it [here](https://rustdoc.crud.net/imperio/source-code-scrollbar/src/test_docs/lib.rs.html).
It seems to introduce a few regressions (at least change of behaviour) about the scroll "saving" though.
r? `@notriddle`
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rustdoc: escape GAT args in more cases
Fixes #109488.
Previously we printed the *un*escaped form of GAT arguments not only when `f.alternate()` was true but *also* when we failed to compute the URL of the trait associated with the type projection, i.e. when `href(…)` returned an `Err(_)`.
In this PR the argument printing logic is entirely separate from the link resolution code above as it should be.
Further, we now only try to compute the URL if the HTML format was requested with `!f.alternate()`. Before, we would sometimes compute the `href` only to throw it away later.
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improve UX
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map_identity
filter_next
option_as_ref_deref
unnecessary_find_map
redundant_slicing
unnecessary_unwrap
bool_comparison
derivable_impls
manual_flatten
needless_borrowed_reference
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Fix "Directly go to item in search if there is only one result" setting
Part of #66181.
The setting was actually broken, so I fixed it when I added the GUI test.
r? `@notriddle`
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Don't display `// some variants omitted` if enum is marked
`#[non_exhaustive]`
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rustdoc: clean up `storage.js`
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rustdoc: Optimize impl sorting during rendering
This should fix the perf regression on [bitmaps-3.1.0](https://github.com/rust-lang/rustc-perf/tree/master/collector/compile-benchmarks/bitmaps-3.1.0) from https://github.com/rust-lang/rust/pull/107765.
The bitmaps crate has a lot of impls:
```rust
impl Bits for BitsImpl<1> { ... }
impl Bits for BitsImpl<2> { ... }
// ...
impl Bits for BitsImpl<1023> { ... }
impl Bits for BitsImpl<1024> { ... }
```
and the logic in `fn print_item` sorts them in natural order.
Before https://github.com/rust-lang/rust/pull/107765 the impls came in source order, which happened to be already sorted in the necessary way.
So the comparison function was called fewer times.
After https://github.com/rust-lang/rust/pull/107765 the impls came in "stable" order (based on def path hash).
So the comparison function was called more times to sort them.
The comparison function was terribly inefficient, so it caused a large perf regression.
This PR attempts to make it more efficient by using cached keys during sorting.
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r=GuillaumeGomez
rustdoc: add support for type filters in arguments and generics
This makes sense, since the search index has the information in it, and it's more useful for function signature searches since a function signature search's item type is, by definition, some type of function (there's more than one, but not very many).
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This is based on the compatibility data for `window.matchMedia` and
`MediaQueryList`'s `EventTarget` implementation.
https://developer.mozilla.org/en-US/docs/Web/API/MediaQueryList#browser_compatibility
https://developer.mozilla.org/en-US/docs/Web/API/Window/matchMedia#browser_compatibility
* EventTarget would require us to drop support for all Chrome
versions before 39. However, we already require Chrome 49,
because rustdoc requires [CSS variables].
* EventTarget would also limit us to Firefox 55, but since #106502
rustdoc only supports Firefox > 68.
* EventTarget limits us to Mobile Safari version 14, but #102404
shows that our CSS is broken in Safari versions before 15.5.
[CSS variables]: https://developer.mozilla.org/en-US/docs/Web/CSS/--*#browser_compatibility
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This converts a few functions to more compact versions of
themselves, and moves `RUSTDOC_MOBILE_BREAKPOINT` to main.js where
it's actually used.
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Rollup of 9 pull requests
Successful merges:
- #108954 (rustdoc: handle generics better when matching notable traits)
- #109203 (refactor/feat: refactor identifier parsing a bit)
- #109213 (Eagerly intern and check CrateNum/StableCrateId collisions)
- #109358 (rustc: Remove unused `Session` argument from some attribute functions)
- #109359 (Update stdarch)
- #109378 (Remove Ty::is_region_ptr)
- #109423 (Use region-erased self type during IAT selection)
- #109447 (new solver cleanup + implement coherence)
- #109501 (make link clickable)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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rustdoc: handle generics better when matching notable traits
This commit makes the `clean::Type::is_same` non-commutative (renaming it `is_doc_subtype_of`), so that a generic `impl` matches a concrete return, but a generic return does not match a concrete `impl`. It makes slice and vector Write for `u8` not match on every generic return value.
Fixes #100322
Fixes #55082
Preview:
* https://notriddle.com/rustdoc-demo-html-3/notable-trait-generic/std/vec/struct.Vec.html#method.new
* https://notriddle.com/rustdoc-demo-html-3/notable-trait-generic/std/vec/struct.Vec.html#method.from-12
* https://notriddle.com/rustdoc-demo-html-3/notable-trait-generic/std/iter/trait.Iterator.html#method.intersperse_with
* https://notriddle.com/rustdoc-demo-html-3/notable-trait-generic/std/string/struct.String.html#method.as_bytes
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Rollup of 10 pull requests
Successful merges:
- #109373 (Set LLVM `LLVM_UNREACHABLE_OPTIMIZE` to `OFF`)
- #109392 (Custom MIR: Allow optional RET type annotation)
- #109394 (adapt tests/codegen/vec-shrink-panik for LLVM 17)
- #109412 (rustdoc: Add GUI test for "Auto-hide item contents for large items" setting)
- #109452 (Ignore the vendor directory for tidy tests.)
- #109457 (Remove comment about reusing rib allocations)
- #109461 (rustdoc: remove redundant `.content` prefix from span/a colors)
- #109477 (`HirId` to `LocalDefId` cleanup)
- #109489 (More general captures)
- #109494 (Do not feed param_env for RPITITs impl side)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Render source page layout with Askama
~~I was looking at making `code_html` render into the buffer instead of in advance, but it turned out to need a pretty big refactor, so starting with rearranging the high-level layout.~~
Found another approach which required much less changes
cc #108868
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Reverts a1d4ebe4961c107272f9764d1908227a3cd04092, as well as
fixing the problem it solved with links losing their color.
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This makes sense, since the search index has the information in it,
and it's more useful for function signature searches since a
function signature search's item type is, by definition, some type
of function (there's more than one, but not very many).
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rustdoc: Fix improper escaping of deprecation reasons
Fix #109374
r? `@jsha`
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rustdoc: Remove footnote references from doc summary
Since it's one line, we don't have the footnote definition so it doesn't make sense to have the reference.
Part of https://github.com/rust-lang/rust/issues/109024.
r? `@notriddle`
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r=GuillaumeGomez
rustdoc: implement bag semantics for function parameter search
This tweak to the function signature search engine makes things so that, if a type is repeated in the search query, it'll only match if the function actually includes it that many times.
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rustdoc: cleanup some intermediate allocs
First commit self contained, second one use `display_fn` for `extra_info_tags`
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This tweak to the function signature search engine makes things so that,
if a type is repeated in the search query, it'll only match if the
function actually includes it that many times.
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Co-authored-by: Michael Howell <michael@notriddle.com>
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rustdoc: remove `std::` from primitive intra-doc link tooltips
Take the intra-doc link to the method `iter` from https://doc.rust-lang.org/nightly/std/slice/struct.Iter.html
Before: `method std::slice::iter`
After: `method slice::iter`
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rustdoc: fix type search for `Option` combinators
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rustdoc: reduce allocs in FnDecl::inner_full_print
Instead of maintaining parallel buffers for both HTML and non-HTML output, follow the idiom from the rest of format.rs that f.alternate() == true means textual output. Also, add an argument to control line wrapping explicitly.
This allows the caller to render once with textual output and no line wrapping, to decide whether line wrapping should be applied in the final HTML output.
Also, remove some format! and " ".repeat calls, and remove a dependency on calling `String::replace` to switch from newlines to spaces.
This coincidentally fixes some minor bugs where the old code was undercounting the number of characters for a declaration in text mode.
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rustdoc: use restricted Damerau-Levenshtein distance for search
Based on https://github.com/rust-lang/rust/pull/108200, for the same rationale.
> This replaces the existing Levenshtein algorithm with the Damerau-Levenshtein algorithm. This means that "ab" to "ba" is one change (a transposition) instead of two (a deletion and insertion). More specifically, this is a restricted implementation, in that "ca" to "abc" cannot be performed as "ca" → "ac" → "abc", as there is an insertion in the middle of a transposition. I believe that errors like that are sufficiently rare that it's not worth taking into account.
Before this change, searching [`prinltn!`] listed `print!` first, followed by `println!`. With this change, `println!` matches more closely.
[`prinltn!`]: https://doc.rust-lang.org/nightly/std/?search=prinltn!
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Instead of maintaining parallel buffers for both HTML and non-HTML output,
follow the idiom from the rest of format.rs that f.alternate() == true means
textual output. Also, add an argument to control line wrapping explicitly.
This allows the caller to render once with textual output and no line wrapping,
to decide whether line wrapping should be applied in the final HTML output.
Also, remove some format! and " ".repeat calls, and remove a dependency on
calling `String::replace` to switch from newlines to spaces.
This coincidentally fixes some minor bugs where the old code was undercounting
the number of characters for a declaration in text mode.
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rustdoc: Migrate sidebar rendering to Askama
cc #108757
Renders the sidebar for documentation using an Askama template
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rustdoc: Migrate `document_item_info` to Askama
https://rust-lang.zulipchat.com/#narrow/stream/266220-rustdoc/topic/rustdoc.20allocations.20are.20slow
Hoping to piece-by-piece migrate things to template. Had a few failed attempts at more complex parts of the code, so this is just a start.
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rustdoc: sort deprecated items lower in search
closes #98759
### Screenshots
`i32::MAX` show sup above `std::i32::MAX` and `core::i32::MAX`
If just searching for `min`, the deprecated results show up far below other things:
one page later
~~And, as you can see, the "Deprecation planned" message shows up in the search results. The same is true for fully-deprecated items like `mem::uninitialized`:
~~
Edit: the deprecation message change was removed from this PR. Only the sorting is changed.
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Based on https://github.com/rust-lang/rust/pull/108200, for the same
rationale.
> This replaces the existing Levenshtein algorithm with the
> Damerau-Levenshtein algorithm. This means that "ab" to "ba" is one change
> (a transposition) instead of two (a deletion and insertion). More
> specifically, this is a restricted implementation, in that "ca" to "abc"
> cannot be performed as "ca" → "ac" → "abc", as there is an insertion in the
> middle of a transposition. I believe that errors like that are sufficiently
> rare that it's not worth taking into account.
Before this change, searching `prinltn!` listed `print!` first, followed
by `println!`. With this change, `println!` matches more closely.
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