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rustdoc: Replace `FakeDefId` with new `ItemId` type
Follow up from #84707
`@Manishearth` [suggested](https://github.com/rust-lang/rust/pull/84707#issuecomment-831994669) that there should be a new `ItemId` type that can distinguish between auto traits, normal ids, and blanket impls instead of using `FakeDefId`s.
This type is introduced by this PR.
There are still some `FIXME`s left, because I was unsure what the best solution for them would be.
Especially the naming in general now is a bit weird right now and needs to be cleaned up. Now there are no "fake" ids so the `is_fake` method on `Item` does not really make sense and maybe the methods on `ItemId` should be renamed too?
Also, we need to represent the new item ids in the JSON backend somehow.
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These were only used once, in a place where it was trivial to replace.
Also, it's unclear what 'clean' would mean for these, so it seems better
to be explicit.
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The output is not quite as nice as it used to be, but it does work.
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Properly render HRTBs
```rust
pub fn test<T>()
where
for<'a> &'a T: Iterator,
{}
```
This will now render properly including the `for<'a>`
I do not know if this covers all cases, it only covers everything that I could think of that includes `for` and lifetimes in where bounds.
Also someone need to mentor me on how to add a proper rustdoc test for this.
Resolves #78482
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Also remove original_crate_name, which had the exact same implementation
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Also remove original_crate_name, which had the exact same implementation
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Unify rustc and rustdoc parsing of `cfg()`
This extracts a new `parse_cfg` function that's used between both.
- Treat `#[doc(cfg(x), cfg(y))]` the same as `#[doc(cfg(x)]
#[doc(cfg(y))]`. Previously it would be completely ignored.
- Treat `#[doc(inline, cfg(x))]` the same as `#[doc(inline)]
#[doc(cfg(x))]`. Previously, the cfg would be ignored.
- Pass the cfg predicate through to rustc_expand to be validated
Technically this is a breaking change, but doc_cfg is still nightly so I don't think it matters.
Fixes https://github.com/rust-lang/rust/issues/84437.
r? `````````@petrochenkov`````````
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This extracts a new `parse_cfg` function that's used between both.
- Treat `#[doc(cfg(x), cfg(y))]` the same as `#[doc(cfg(x)]
#[doc(cfg(y))]`. Previously it would be completely ignored.
- Treat `#[doc(inline, cfg(x))]` the same as `#[doc(inline)]
#[doc(cfg(x))]`. Previously, the cfg would be ignored.
- Pass the cfg predicate through to rustc_expand to be validated
Co-authored-by: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
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Do not print visibility in external traits
This PR fixes the bug that caused traits, which were re-exported, having visibility modifiers in front of methods, which is invalid.
It would be nice to add a test for this, but I don't even know if tests with multiple crates are possible.
Resolves #81274
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RustDoc: Fix bounds linking trait.Foo instead of traitalias.Foo
Fixes #84782
The code was assuming `Trait` when adding bounds to the cache, so add a check on the DefId to see what its kind really is.
r? `@jyn514`
Before:
After:
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It can be calculated on-demand.
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84304 - rustdoc: shrink Item::Attributes
Helps with https://github.com/rust-lang/rust/issues/84304
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check item.is_fake() instead of self_id.is_some()
Remove empty branching in Attributes::from_ast
diverse small refacto after Josha review
cfg computation moved in merge_attrs
refacto use from_ast twice for coherence
take cfg out of Attributes and move it to Item
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the fields in Attributes, as functions in AttributesExt.
refacto use from_def_id_and_attrs_and_parts instead of an old trick
most of josha suggestions + check if def_id is not fake before using it in a query
Removed usage of Attributes in FnDecl and ExternalCrate. Relocate part of the Attributes fields as functions in AttributesExt.
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- Remove `span` field, adding `Item::span()` instead
- Special-case `Impl` and `Module` items
- Use dummy spans for primitive items
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The only bit failing was the module, so change that before removing the
`span` field.
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rustdoc: Get rid of `clean::TypeKind`
It does exactly the same thing as ItemType.
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clean::Module
It can be calculated on-demand even without a TyCtxt.
This also changed `from_item_kind` to take a whole item, which avoids
having to add more and more parameters.
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I didn't make these renames in #80965 because I didn't want the PR to
conflict with #80914.
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Rename `#[doc(spotlight)]` to `#[doc(notable_trait)]`
Fixes #80936.
"spotlight" is not a very specific or self-explaining name.
Additionally, the dialog that it triggers is called "Notable traits".
So, "notable trait" is a better name.
* Rename `#[doc(spotlight)]` to `#[doc(notable_trait)]`
* Rename `#![feature(doc_spotlight)]` to `#![feature(doc_notable_trait)]`
* Update documentation
* Improve documentation
r? `@Manishearth`
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Its type is called `clean::Span`, and also the name in the rest of
rustdoc and rustc for this kind of field is `span`.
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"spotlight" is not a very specific or self-explaining name.
Additionally, the dialog that it triggers is called "Notable traits".
So, "notable trait" is a better name.
* Rename `#[doc(spotlight)]` to `#[doc(notable_trait)]`
* Rename `#![feature(doc_spotlight)]` to `#![feature(doc_notable_trait)]`
* Update documentation
* Improve documentation
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The same information is available everywhere; the only reason the dummy
cache was needed is because it waas previously stored in three different
places. This consolidates the info a bit so the cache in `DocContext` is
used throughout. As a bonus, it means `renderinfo` is used much much
less.
- Return a `Cache` from `run_global_ctxt`, not `RenderInfo`
- Remove the unused `render_info` from `run_renderer`
- Remove RefCell around `inlined`
- Add intra-doc links
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Prevent to compute Item attributes twice
I came across this case when working on another part of rustdoc. Not a game changer but a nice little improvement.
cc `@camelid`
r? `@jyn514`
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I left some of them so this change doesn't balloon in size and because
removing the RefCell in `DocContext.resolver` would require compiler
changes.
Thanks to `@jyn514` for making this a lot easier with #82020!
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- Take `FnMut` in `rustc_trait_selection::find_auto_trait_generics`
- Take `&mut DocContext` in most of `clean`
- Collect the iterator in auto_trait_impls instead of iterating lazily; the lifetimes were really bad.
- Changes `fn sess` to properly return a borrow with the lifetime of `'tcx`, not the mutable borrow.
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