rustdoc: use smarter encoding for playground URL
The old way would compress okay with DEFLATE, but this version makes uncompressed docs smaller, which matters for memory usage and stuff like `cargo doc`.
Try it out: <https://play.rust-lang.org/?code=fn+main()+{%0Alet+mut+v+=+Vec::new();%0Av.push(1+/+1);%0Aprintln!(%22{}%22,+v[0]);%0A}>
In local testing, this change shrinks sample pages by anywhere between 4.0% and 0.031%
$ du -b after.dir/std/vec/struct.Vec.html before.dir/std/vec/struct.Vec.html
759235 after.dir/std/vec/struct.Vec.html
781842 before.dir/std/vec/struct.Vec.html
100*((759235-781842)/781842)=-2.8
$ du -b after.dir/std/num/struct.Wrapping.html before.dir/std/num/struct.Wrapping.html
3194173 after.dir/std/num/struct.Wrapping.html
3204351 before.dir/std/num/struct.Wrapping.html
100*((3194173-3204351)/3204351)=-0.031
$ du -b after.dir/std/keyword.match.html before.dir/std/keyword.match.html
8151 after.dir/std/keyword.match.html
8495 before.dir/std/keyword.match.html
100*((8151-8495)/8495)=-4.0
Gzipped tarball sizes seem shrunk, but not by much.
du -s before.tar.gz after.tar.gz
69600 before.tar.gz
69480 after.tar.gz
100*((69480-69600)/69600)=-0.17
The old way would compress okay with DEFLATE, but this version makes
uncompressed docs smaller, which matters for memory usage and stuff
like `cargo doc`.
Try it out: <https://play.rust-lang.org/?code=fn+main()+{%0Alet+mut+v+=+Vec::new();%0Av.push(1+/+1);%0Aprintln!(%22{}%22,+v[0]);%0A}>
In local testing, this change shrinks sample pages by anywhere between
4.0% and 0.031%
$ du -b after.dir/std/vec/struct.Vec.html before.dir/std/vec/struct.Vec.html
759235 after.dir/std/vec/struct.Vec.html
781842 before.dir/std/vec/struct.Vec.html
100*((759235-781842)/781842)=-2.8
$ du -b after.dir/std/num/struct.Wrapping.html before.dir/std/num/struct.Wrapping.html
3194173 after.dir/std/num/struct.Wrapping.html
3204351 before.dir/std/num/struct.Wrapping.html
100*((3194173-3204351)/3204351)=-0.031
$ du -b after.dir/std/keyword.match.html before.dir/std/keyword.match.html
8151 after.dir/std/keyword.match.html
8495 before.dir/std/keyword.match.html
100*((8151-8495)/8495)=-4.0
Gzipped tarball sizes seem shrunk, but not by much.
du -s before.tar.gz after.tar.gz
69600 before.tar.gz
69480 after.tar.gz
100*((69480-69600)/69600)=-0.17
rustdoc: rearrange HTML in primitive reference links
This patch avoids hard-to-click single character links by making the generic part of the link:
Before: <a href="#">&</a>T
After: <a href="#">&T</a>
* Changes the class names so that they all start with `setting-`.
That should make it harder to accidentally use a setting class outside
the settings popover, where loading the CSS might accidentally change
the styles of something unrelated.
* Get rid of an unnecessary wrapper DIV around the radio button line.
* Simplify CSS selectors by making the DOM easier and more intuitive
to target.
rustdoc: Use `DefId(Map,Set)` instead of `FxHash(Map,Set)`
Not all uses are converted, a few cases iterating through maps/sets and requiring nontrivial changes are kept.
cc https://github.com/rust-lang/rust/pull/106977
rustdoc: remove redundant CSS rule `#settings .setting-line`
Since the current version of settings.js always nests things below a div with ID `settings`, this rule always overrode the one above.
rustdoc: simplify JS search routine by not messing with lev distance
Since the sorting function accounts for an `index` field, there's not much reason to also be applying changes to the levenshtein distance. Instead, we can just not treat `lev` as a filter if there's already a non-sentinel value for `index`.
<details>
This change gives slightly more weight to the index and path part, as search criteria, than it used to. This changes some of the test cases, but not in any obviously-"worse" way, and, in particular, substring matches are a bigger deal than levenshtein distances (we're assuming that a typo is less likely than someone just not typing the entire name).
The biggest change is the addition of a `path_lev` field to result items. It's always zero if the search query has no parent path part and for type queries, making the check in the `sortResults` function a no-op. When it's present, it is used to implement different precedence for the parent path and the tail.
Consider the query `hashset::insert`, a test case [that already exists and can be found here](5c6a1681a9/src/test/rustdoc-js-std/path-ordering.js). We want the ordering shown in the test case:
```
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_with' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_owned' },
{ 'path': 'std::collections::hash_map::HashMap', 'name': 'insert' },
```
We do not want this ordering, which is the ordering that would occur if substring position took priority over `path_lev`:
```
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'insert' },
{ 'path': 'std::collections::hash_map::HashMap', 'name': 'insert' }, // BAD
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_with' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_owned' },
```
We also do not want `HashSet::iter` to appear before `HashMap::insert`, which is what would happen if `path_lev` took priority over the appearance of any substring match. This is why the `sortResults` function has `path_lev` sandwiched between a `index < 0` check and a `index` comparison check:
```
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_with' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_owned' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'iter' }, // BAD
{ 'path': 'std::collections::hash_map::HashMap', 'name': 'insert' },
```
The old code implemented a similar feature by manipulating the `lev` member based on whether a substring match was found and averaging in the path distance (`item.lev = name_lev + path_lev / 10`), so the path lev wound up acting like a tie breaker, but it gives slightly different results for `Vec::new`, [changing the test case](https://github.com/rust-lang/rust/pull/105796/files#diff-b346e2ef72a407915f438063c8c2c04f7a621df98923d441b41c0312211a5b21) because of the slight changes to ordering priority.
</details>
Based on https://github.com/rust-lang/rust/pull/103710#issuecomment-1296894296
Previews:
* https://notriddle.com/notriddle-rustdoc-demos/rustdoc-search-stop-doing-demerits/std/index.html
* https://notriddle.com/notriddle-rustdoc-demos/rustdoc-search-stop-doing-demerits-compiler/index.html
This prevents some strange blur-event-related bugs with the "?" command
by ensuring that the focus remains in the same spot when the settings
area closes.
rustdoc: remove redundant item kind class from `.item-decl > pre`
This class originated in the very first commit of `rustdoc_ng`, and was used to add a color border around the item decl based on its kind.
4fd061c426/src/rustdoc_ng/html/static/main.css (L102-L106)
The item decl no longer has a border, and there aren't any kind-specific styles in modern rustdoc's rendering of this UI item.
Most of this PR is updating test cases so that they use `item-decl` to find the `<pre>` tag instead of relying on the fact that the class name had `rust {kind}` in it while other `<pre>` tags only had class `rust`.
Since the sorting function accounts for an `index` field, there's not much
reason to also be applying changes to the levenshtein distance. Instead,
we can just not treat `lev` as a filter if there's already a non-sentinel
value for `index`.
This change gives slightly more weight to the index and path part, as
search criteria, than it used to. This changes some of the test cases,
but not in any obviously-"worse" way, and, in particular, substring matches
are a bigger deal than levenshtein distances (we're assuming that a typo
is less likely than someone just not typing the entire name).
Based on
https://github.com/rust-lang/rust/pull/103710#issuecomment-1296894296
This class originated in the very first commit of `rustdoc_ng`, and was used
to add a color border around the item decl based on its kind.
4fd061c426/src/rustdoc_ng/html/static/main.css (L102-L106)
The item decl no longer has a border, and there aren't any
kind-specific styles in modern rustdoc's rendering of this UI item.
Most of this commit is updating test cases so that they use `item-decl` to
find the `<pre>` tag instead of relying on the fact that the class name
had `rust {kind}` in it while other `<pre>` tags only had class `rust`.
rustdoc: remove `docblock` class from notable trait popover
This commit builds on b72de9be74, which removes the `docblock` class from the All Items page, and 9457380ac9, which removes the `docblock` class from the item decl.
Fixes#92974
rustdoc: remove unnecessary DOM class `h1.fqn`
It's misleading. The main heading sometimes isn't an fully qualified name at all.
It's also redundant. It's always a child of `div.main-heading`, so just use that.
This commit builds on b72de9be74, which removes
the `docblock` class from the All Items page, and
9457380ac9, which removes the `docblock` class
from the item decl.
Fixes#92974
It's misleading. The main heading sometimes isn't an fully qualified name at all.
It's also redundant. It's always a child of `div.main-heading`, so just use that.
