rustdoc: Show type layout for type aliases
Fixes#91265.
At first, you might think, "Why not just click through to the aliased
type?" But, if a type alias instantiates all of the generic parameters
of the aliased type, then it can show layout info even though the
aliased type cannot (because we can't compute layout for generic types).
So, I think it's useful to show layout info for type aliases.
This is a followup of 78d4b453ad2e19d44011b26fc55c949bff5dba3d
(originally part of #83501).
At first, you might think, "Why not just click through to the aliased
type?" But, if a type alias instantiates all of the generic parameters
of the aliased type, then it can show layout info even though the
aliased type cannot (because we can't compute layout for generic types).
So, I think it's useful to show layout info for type aliases.
This is a followup of 78d4b453ad2e19d44011b26fc55c949bff5dba3d
(originally part of #83501).
Rationale:
* The name was confusing.
* It was only used in one place.
* That place didn't actually need all the functionality of `get_type`;
rather, removing `get_type` makes that code clearer.
rustdoc: preload fonts
Follow-up from #82315.
I noticed that font loading was so slow that even when loading from local disk, we get a flash of unstyled text (FOUT) followed by a reflow when the fonts load. With this change, we reliably get the appropriate fonts in the first render pass when loading locally, and we get it some of the time when loading from a website.
This only preloads woff2 versions. According to https://caniuse.com/?search=preload and https://caniuse.com/?search=woff2, all browsers that support preload also support woff2, so this is fine; we will never load two copies of a font.
Don't preload italic font faces because they aren't used on all pages.
Demo: https://rustdoc.crud.net/jsha/preload-fonts/std/string/struct.String.html
rustdoc: Consolidate static-file replacement mechanism
There were a few places in rustdoc where we would take static JS or CSS and rewrite it at doc generation time to insert values. This consolidates all the CSS instances into one CSS file and replaces the JS examples with data- attributes on the rustdoc-vars div.
Demo https://rustdoc.crud.net/jsha/static-file-replace/test_docs/
r? ``@GuillaumeGomez``
rustdoc: Rename `Type::ResolvedPath` to `Type::Path` and don't re-export it
The new name is shorter, simpler, and consistent with `hir::Ty`. It can't be
re-exported since the name would conflict with the `clean::Path` struct. But
usually enum variants are referred to using their qualified names in Rust anyway
(and parts of rustdoc already do that with `clean::Type`), so this is also more
consistent with the language.
r? `@GuillaumeGomez`
cc `@jyn514`
I would like to rename it to `Type::Path`, but then it can't be
re-exported since the name would conflict with the `Path` struct.
Usually enum variants are referred to using their qualified names in
Rust (and parts of rustdoc already do that with `clean::Type`), so this
is also more consistent with the language.
rustdoc: Remove `ResolvedPath.did`
`ResolvedPath.did` was not actually the same as `.path.def_id()`. Instead,
`.did` referred to the `DefId` of the page to be used as a hyperlink target.
For example, a link to `Struct::method()` would use `Struct`'s `DefId` as its
`.did` field. This behavior is confusing, easy to accidentally misuse, and can
instead be obtained on-demand when computing hyperlink targets. It's also likely
part of the reason `kind_side_channel` exists. I'm currently working on some
experimental refactorings in `collect_intra_doc_links` that I believe require --
or at least benefit from -- removing `.did`.
r? `@jyn514`
Tokenize emoji as if they were valid identifiers
In the lexer, consider emojis to be valid identifiers and reject
them later to avoid knock down parse errors.
Partially address #86102.
We had been injecting the list of themes and the rustdoc version into
main.js by rewriting it at doc generation time. By avoiding this
rewrite, we can make it easier to edit main.js without regenerating all
the docs.
Added a more convenient accessor for rustdoc-vars.
Changed storage.js to not rely on resourcesSuffix. It could in theory
use rustdoc-vars, but because rustdoc-vars is at the end of the HTML,
it's not available when storage.js runs (very early in page load).
We carry around a list of stylesheets that can carry two different types
of thing:
1. Internal stylesheets specific to a page type (only for settings)
2. Themes
In this change I move the link generation for settings.css into
settings(), so Context.style_files is reserved just for themes.
We had two places where we extracted a base theme name from a list of
StylePaths. I consolidated that code to be a method on StylePath.
I moved generation of link tags for stylesheets into the page.html
template. With that change, I made the template responsible for special
handling of light.css (making it the default theme) and of the other
themes (marking them disabled). That allowed getting rid of the
`disabled` field on StylePath.
