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r=GuillaumeGomez,notriddle
If a trait item appears in rustdoc search, hide the corrosponding impl items
fixes rust-lang/rust#138251
cc `@notriddle`
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for example, if we're showing `Iterator::next`,
we don't need to also show `Range::next` in the results.
Co-authored-by: Michael Howell <michael@notriddle.com>
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This decreases the size of the compiler-doc from 57MiB to 56MiB.
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Co-authored-by: Anne Stijns <anstijns@gmail.com>
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With a patch applied to count the number of unifications,
and running the query `Option<T>, (T -> U) -> Option<U>`
before: performed unifyFunctionType on 17484 functions
after: performed unifyFunctionType on 3055 functions
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This reverts commit 1140e90074b0cbcfdea8535e4b51877e2838227e.
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This reverts commit 5e8ebd5ecd8546591a6707ac9e1a3b8a64c72f76.
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r=GuillaumeGomez
rustdoc search: prefer stable items in search results
fixes https://github.com/rust-lang/rust/issues/138067
this does add a new field to the search index, but since we're only listing unstable items instead of adding a boolean flag to every item, it should only increase the search index size of sysroot crates, since those are the only ones using the `staged_api` feature, at least as far as the rust project is concerned.
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[rustdoc] Make aliases search support partial matching
Fixes rust-lang/rust#140782.
To make this work, I moved aliases into the `searchIndex` like any other item. It links to the "original" item with a new `original` field. No so great part is that we need to have some fields like `bitIndex` to be set on the alias to make the description load to work but I consider it minor enough to be ok.
This PR voluntarily doesn't handle de-prioritization of aliases as ```@lolbinarycat``` wished to work on this so I'll leave them this part. :wink:
cc ```@lolbinarycat```
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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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fixes https://github.com/rust-lang/rust/issues/138067
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from "argument" to "parameter"
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This reduces the size of both these args, and of path segments,
so should measurably help with memory use.
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constants and statics are nullary functions, and struct fields are unary functions.
functions (along with methods and trait methods) are prioritized over other
items, like fields and constants.
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rustdoc-search: fix mismatched path when parent re-exported twice
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This commit is a response to feedback on the displayed type
signatures results, by making generics act stricter.
Generics are tightened by making order significant. This means
`Vec<Allocator>` now matches only with a true vector of allocators,
instead of matching the second type param. It also makes unboxing
within generics stricter, so `Result<A, B>` only matches if `B`
is in the error type and `A` is in the success type. The top level
of the function search is unaffected.
Find the discussion on:
* <https://rust-lang.zulipchat.com/#narrow/stream/393423-t-rustdoc.2Fmeetings/topic/meeting.202024-07-08/near/449965149>
* <https://github.com/rust-lang/rust/pull/124544#issuecomment-2204272265>
* <https://rust-lang.zulipchat.com/#narrow/channel/266220-t-rustdoc/topic/deciding.20on.20semantics.20of.20generics.20in.20rustdoc.20search/near/476841363>
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fixes https://github.com/rust-lang/rust/issues/131804
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- Replace non-standard names like 's, 'p, 'rg, 'ck, 'parent, 'this, and
'me with vanilla 'a. These are cases where the original name isn't
really any more informative than 'a.
- Replace names like 'cx, 'mir, and 'body with vanilla 'a when the lifetime
applies to multiple fields and so the original lifetime name isn't
really accurate.
- Put 'tcx last in lifetime lists, and 'a before 'b.
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File size
---------
```console
$ du -hs doc.old/search-index1.82.0.js doc/search-index1.82.0.js
3.2M doc.old/search-index1.82.0.js
2.8M doc/search-index1.82.0.js
$ gzip doc/search-index1.82.0.js
$ gzip doc.old/search-index1.82.0.js
$ du -hs doc.old/search-index1.82.0.js.gz doc/search-index1.82.0.js.gz
464K doc.old/search-index1.82.0.js.gz
456K doc/search-index1.82.0.js.gz
$ du -hs compiler-doc.old/search-index.js compiler-doc/search-index.js
8.5M compiler-doc.old/search-index.js
6.5M compiler-doc/search-index.js
$ gzip compiler-doc/search-index1.82.0.js
$ gzip compiler-doc.old/search-index1.82.0.js
$ du -hs compiler-doc.old/search-index.js.gz compiler-doc/search-index.js.gz
1.4M compiler-doc.old/search-index.js.gz
1.4M compiler-doc/search-index.js.gz
```
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This is much more readable and idiomatic, and also may help performance
since `match`es usually use switches while `if`s may not.
I also fixed an incorrect comment.
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We already have special-cased code to handle inlining `Self` as the type
or trait it refers to, and this was just causing glitches like the
search `A -> B` yielding blanket `Into` impls.
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Rustdoc often has to special-case `Self` because it is, well, a special
type of generic parameter (although it also behaves as an alias in
concrete impls). Instead of spreading this special-casing throughout the
code base, create a new variant of the `clean::Type` enum that is for
`Self` types.
This is a refactoring that has almost no impact on rustdoc's behavior,
except that `&Self`, `(Self,)`, `&[Self]`, and other similar occurrences
of `Self` no longer link to the wrapping type (reference primitive,
tuple primitive, etc.) as regular generics do. I felt this made more
sense since users would expect `Self` to link to the containing trait or
aliased type (though those are usually expanded), not the primitive that
is wrapping it. For an example of the change, see the docs for
`std::alloc::Allocator::by_ref`.
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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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