Move rendering of examples into
Finalize design
Cleanup, rename found -> scraped
Softer yellow
Clean up dead code
Document scrape_examples
More simplification and documentation
Remove extra css
Test
librustdoc: Use correct heading levels.
Closes#89309
This fixes the `<h#>` header tags throughout the docs to reflect a semantic hierarchy.
- I ran a script to manually check that we don't have any files with multiple `<h1>` tags.
- Also checked that we never incorrectly nest e.g. a `<h2>` under an `<h3>`.
- I also spot-checked a bunch of pages (`trait.Read`, `enum.Ordering`, `primitive.isize`, `trait.Iterator`).
Fix union keyword highlighting in rustdoc HTML sources
I followed this logic: if I find an ident "union", I check if it followed by another ident or not. If it's the case, then I consider this is a keyword because it's declaring a union type.
To do so I created a new Iterator which allows to peek the next items without moving the current iterator position.
This is part of https://github.com/rust-lang/rust/issues/85016. If the fix makes sense, I'll extend it to other weak keywords (the issue only mentions they exist but https://doc.rust-lang.org/nightly/reference/keywords.html#weak-keywords only talks about `dyn` and `'static` so not sure if there is anything else to be done?).
cc `@notriddle` (you're one of the last ones who worked on this part of rustdoc so here you go 😉 )
r? `@jyn514`
Use the correct edition for syntax highlighting doctests
Previously it would unconditionally use edition 2015, which was incorrect.
Helps with https://github.com/rust-lang/rust/issues/89135 in that you can now override the doctest to be 2018 edition instead of being forced to fix the error. This doesn't resolve any of the deeper problems that rustdoc disagrees with most rust users on what a code block is.
cc `@Mark-Simulacrum`
rustdoc: Cleanup `clean` part 2
Split out from #88379. This contains the following commits from that PR:
- Remove `Type::ResolvedPath.is_generic`
- Rename `is_generic()` to `is_assoc_ty()`
r? `@jyn514`
rustdoc: Cleanup `clean` part 1
Split out from #88379.
These commits are completely independent of each other, and each is a fairly
small change (the last few are new commits; they are not from #88379):
- Remove unnecessary `Cache.*_did` fields
- rustdoc: Get symbol for `TyParam` directly
- Create a valid `Res` in `external_path()`
- Remove unused `hir_id` parameter from `resolve_type`
- Fix redundant arguments in `external_path()`
- Remove unnecessary `is_trait` argument
- rustdoc: Cleanup a pattern match in `external_generic_args()`
r? ``@jyn514``
- Fix broken handling of primitive associated items
- Remove fragment hack
Fixes 83083
- more logging
- Update CrateNum hacks
The CrateNum has no relation to where in the dependency tree the crate
is, only when it's loaded. Explicitly special-case core instead of
assuming it will be the first DefId.
- Update and add tests
- Cache calculation of primitive locations
This could possibly be avoided by passing a Cache into
collect_intra_doc_links; but that's a much larger change, and doesn't
seem valuable other than for this.
Change more x64 size checks to not apply to x32.
Commit 95e096d6 changed a bunch of size checks already, but more have
been added, so this fixes the new ones the same way: the various size
checks that are conditional on target_arch = "x86_64" were not intended
to apply to x86_64-unknown-linux-gnux32, so add
target_pointer_width = "64" to the conditions.
Fix table in docblocks
"Overwrite" of #88702.
Instead of adding a z-index to the sidebar (which only hides the issue, doesn't fix it), I wrap `<table>` elements inside a `<div>` and limit all chidren of `.docblock` elements' width to prevent having the scrollbar on the whole doc block.

Thanks `@nbdd0121` for `overflow-x: auto;`. ;)
r? `@notriddle`
`rustdoc`: compute correct line number for indented rust code blocks.
This PR fixes a bug in `rustdoc` where it computes the wrong line number for indented rust code blocks (and subsequent blocks) it finds in markdown strings. To fix this issue, we decrement the line number if we find characters between the code block and the preceding line ending. I noticed this issue as I was trying to use `rustdoc` to extract examples from The Rust Reference and run them through the [Rust Model Checker](https://github.com/model-checking/rmc).