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There are many places that join path segments with `::` to produce a
string. A lot of these use `join("::")`. Many in rustdoc use
`join_with_double_colon`, and a few use `.joined("..")`. One in Clippy
uses `itertools::join`. A couple of them look for `kw::PathRoot` in the
first segment, which can be important.
This commit introduces `rustc_ast::join_path_{syms,ident}` to do the
joining for everyone. `rustc_ast` is as good a location for these as
any, being the earliest-running of the several crates with a `Path`
type. Two functions are needed because `Ident` printing is more complex
than simple `Symbol` printing.
The commit also removes `join_with_double_colon`, and
`estimate_item_path_byte_length` with it.
There are still a handful of places that join strings with "::" that are
unchanged. They are not that important: some of them are in tests, and
some of them first split a path around "::" and then rejoin with "::".
This fixes one test case where `{{root}}` shows up in an error message.
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We only called it it one place, which isn't generic and can be replaced
with a field access.
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By making `JsonRenderer::item` take `&clean::Item` instead of a
`clean::Item`. This required also changing `FromClean` and `IntoJson`
methods to take references, which required a lot of follow-on sigil
wrangling that is mostly tedious.
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- It doesn't need to be cloneable.
- Some of the `Rc`s and `RefCell`s aren't doing anything.
- `after_krate` can consume `self`.
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make `rustc_attr_parsing` less dominant in the rustc crate graph
It has/had a glob re-export of `rustc_attr_data_structures`, which is a crate much lower in the graph, and a lot of crates were using it *just* (or *mostly*) for that re-export, while they can rely on `rustc_attr_data_structures` directly.
Previous graph:
Graph with this PR:
The first commit keeps the re-export, and just changes the dependency if possible. The second commit is the "breaking change" which removes the re-export, and "explicitly" adds the `rustc_attr_data_structures` dependency where needed. It also switches over some src/tools/*.
The second commit is actually a lot more involved than I expected. Please let me know if it's a better idea to back it out and just keep the first commit.
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rustdoc: Rearrange `Item`/`ItemInner`.
The `Item` struct is 48 bytes and contains a `Box<ItemInner>`;
`ItemInner` is 104 bytes. This is an odd arrangement. Normally you'd
have one of the following.
- A single large struct, which avoids the allocation for the `Box`, but
can result in lots of wasted space in unused parts of a container like
`Vec<Item>`, `HashSet<Item>`, etc.
- Or, something like `struct Item(Box<ItemInner>)`, which requires the
`Box` allocation but gives a very small Item size, which is good for
containers like `Vec<Item>`.
`Item`/`ItemInner` currently gets the worst of both worlds: it always
requires a `Box`, but `Item` is also pretty big and so wastes space in
containers. It would make sense to push it in one direction or the
other. #138916 showed that the first option is a regression for rustdoc,
so this commit does the second option, which improves speed and reduces
memory usage.
r? `@GuillaumeGomez`
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The `Item` struct is 48 bytes and contains a `Box<ItemInner>`;
`ItemInner` is 104 bytes. This is an odd arrangement. Normally you'd
have one of the following.
- A single large struct, which avoids the allocation for the `Box`, but
can result in lots of wasted space in unused parts of a container like
`Vec<Item>`, `HashSet<Item>`, etc.
- Or, something like `struct Item(Box<ItemInner>)`, which requires the
`Box` allocation but gives a very small Item size, which is good for
containers like `Vec<Item>`.
`Item`/`ItemInner` currently gets the worst of both worlds: it always
requires a `Box`, but `Item` is also pretty big and so wastes space in
containers. It would make sense to push it in one direction or the
other. #138916 showed that the first option is a regression for rustdoc,
so this commit does the second option, which improves speed and reduces
memory usage.
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There are a number of `is_empty` checks that can never fail. This commit
removes them.
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the unstable module name is used
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This accomplishes something like 16a4ad7d7b0d163f7be6803c786c3b83d42913bb,
but with the `rustc_allowed_through_unstable_modules` attribute instead
of the path length.
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r=GuillaumeGomez
rustdoc: use shorter paths as preferred canonical paths
This is a solution to [the `std::sync::poison` linking problem](https://github.com/rust-lang/rust/pull/134692#issuecomment-2560373308), and, in general, makes intra-doc links shorter and clearer.
> Done. This helped with the search, but not with the things like `MutexGuard`'s doc's reference to `Mutex::lock` being converted to the absolute (unstable) `std::sync::poison::Mutex` path.
cc `@tgross35`
r? `@GuillaumeGomez`
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This is a solution to the `std::sync::poison` linking problem,
and, in general, makes intra-doc links shorter and clearer.
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`FormatRenderer::make_child_renderer` into `save_module_data`
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Don't keep the `external_traits` as shared mutable data between the
`DocContext` and `clean::Crate`. Instead, move the data over when necessary.
This allows us to get rid of a borrowck hack in the `DocVisitor`.
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r=GuillaumeGomez
Remove `#[macro_use] extern crate tracing` from rustdoc and rustfmt
A follow-up to #129767 and earlier PRs doing this for `rustc_*` crates.
r? ```@GuillaumeGomez```
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Fix rustdoc clippy lints
Ran clippy on rustdoc and fixed the errors.
r? `@notriddle`
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closures
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rustdoc-json: discard non-local inherent impls for primitives
Fixes #114039
at least it should
r? `@aDotInTheVoid`
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rustdoc: Cleanup `CacheBuilder` code for building search index
This code was very convoluted and hard to reason about. It is now (I hope) much
clearer and more suitable for both future enhancements and future cleanups.
I'm doing this as a precursor, with no UI changes, to changing rustdoc to
[ignore blanket impls][1] in type-based search.
[1]: https://github.com/rust-lang/rust/pull/128471#discussion_r1699475342
r? ``@notriddle``
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Co-authored-by: Michael Howell <michael@notriddle.com>
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Many of the code paths it handled were actually impossible. In other
cases, the various checks and transformations were spread around in such
a way that it was hard to tell what was going on.
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The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.
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This reverts commit eda4a35f365535af72118118a3597edf5a13c12d, reversing
changes made to eb6b35b5bcb3c2a594cb29cd478aeb2893f49d30.
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And explain when it should be used.
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