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- All attributes for an item need to be considered at once, they can't
be considered a line at a time.
- The top-level crate was not being visited. This bug was caught by
`extern-crate-used-only-in-link`, which I'm very glad I added.
- Make the loader private to the module, so that only one function is
exposed.
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This reverts commit 5f0c54db4e595a6a77048f2b0605138ffa49a326.
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Use more accurate suggestion spans for
* argument parse error
* fully qualified path
* missing code block type
* numeric casts
* E0212
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rustc: Replace `HirId`s with `LocalDefId`s in `AccessLevels` tables
and passes using those tables - primarily privacy checking, stability checking and dead code checking.
All these passes work with definitions rather than with arbitrary HIR nodes.
r? `@cjgillot`
cc `@lambinoo` (#87487)
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(clippy::useless_conversion)
Example:
let _x: String = String::from("hello world").into();
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and passes using them - primarily privacy checking, stability checking and dead code checking.
WIP
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This reverts commit 41a345d4c46dad1a98c9993bc78513415994e8ba.
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Revert "Don't load all extern crates unconditionally"
Fixes https://github.com/rust-lang/rust/issues/84738.
This reverts https://github.com/rust-lang/rust/pull/83738.
For the "smart" load of external crates, we need to be able to access their items in order to check their doc comments, which seems, if not impossible, quite complicated using only the AST.
For some context, I first tried to extend the `IntraLinkCrateLoader` visitor by adding `visit_foreign_item`. Unfortunately, it never enters into this call, so definitely not the right place...
I then added `visit_use_tree` to then check all the imports outside with something like this:
```rust
let mut loader = crate::passes::collect_intra_doc_links::IntraLinkCrateLoader::new(resolver);
ast::visit::walk_crate(&mut loader, krate);
let mut items = Vec::new();
for import in &loader.imports_to_check {
if let Some(item) = krate.items.iter().find(|i| i.id == *import) {
items.push(item);
}
}
for item in items {
ast::visit::walk_item(&mut item);
for attr in &item.attrs {
loader.check_attribute(attr);
}
}
```
This was, of course, a failure. We find the items without problems, but we still can't go into the external crate to check its items' attributes.
Finally, `@jyn514` suggested to look into the [`CrateLoader`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_metadata/creader/struct.CrateLoader.html), but it only seems to provide metadata (I went through [`CStore`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_metadata/creader/struct.CStore.html) and [`CrateMetadata`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_metadata/rmeta/decoder/struct.CrateMetadata.html)).
I think we are too limited here (with AST only) to be able to determine the crates we actually need to import, but it's very likely that I missed something. Maybe `@petrochenkov` or `@Aaron1011` have an idea?
So until we find a way to make it work completely, we need to revert it to fix the ICE. Once merged, we'll need to re-open #68427.
r? `@jyn514`
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Improvements to intra-doc link macro disambiguators
A few small improvements around macro disambiguators:
- display the link text as it was entered: previously `[macro!()]` would be displayed without the parantheses (fixes #86309)
- support `!{}` and `![]` as macro disambiguators (fixes #86310)
r? `@jyn514` cc `@Manishearth` `@camelid`
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Resolve type aliases to the type they point to in intra-doc links
This feels a bit sketchy, but I think it's better than just rejecting the link.
Helps with #86120, r? ``@jyn514``
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Use the now available implementation of `IntoIterator` for arrays
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(update: placated tidy)
(update: rebased post PR #84707 )
merge me
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rustdoc: link consistently to stable/beta in diagnostic messages
Builds on https://github.com/rust-lang/rust/pull/84942. This makes the diagnostics consistent with the links.
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rustdoc: Remove `PrimitiveType::{to_url_str, as_str}`
These can easily be rewritten in terms of `as_sym`, and this avoids bugs where the two get out of sync.
I don't expect this to have a perf impact, but I'll start a perf run just in case.
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- Simplify boolean expression
- Give an example of invalid syntax
- Remove explanation of why code block is text
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This also gives a better error message when a span is missing.
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This adds a new lint to `rustc` that is used in rustdoc when a code
block is empty or cannot be parsed as valid Rust code.
Previously this was unconditionally a warning. As such some
documentation comments were (unknowingly) abusing this to pass despite
the `-Dwarnings` used when compiling `rustc`, this should not be the
case anymore.
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Remove CrateNum parameter for queries that only work on local crate
The pervasive `CrateNum` parameter is a remnant of the multi-crate rustc idea.
Using `()` as query key in those cases avoids having to worry about the validity of the query key.
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r=jyn514,GuillaumeGomez
Minimize amount of fake `DefId`s used in rustdoc
Follow up from #84707, which minimizes the amount of fake defids to the smallest amount possible. Every `FakeDefId` that is now used in the rustdoc library must be preserved and can not be replaced with a normal `DefId`.
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rustdoc: Remove unnecessary `StripItem` wrapper
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Fix `--remap-path-prefix` not correctly remapping `rust-src` component paths and unify handling of path mapping with virtualized paths
This PR fixes #73167 ("Binaries end up containing path to the rust-src component despite `--remap-path-prefix`") by preventing real local filesystem paths from reaching compilation output if the path is supposed to be remapped.
`RealFileName::Named` introduced in #72767 is now renamed as `LocalPath`, because this variant wraps a (most likely) valid local filesystem path.
`RealFileName::Devirtualized` is renamed as `Remapped` to be used for remapped path from a real path via `--remap-path-prefix` argument, as well as real path inferred from a virtualized (during compiler bootstrapping) `/rustc/...` path. The `local_path` field is now an `Option<PathBuf>`, as it will be set to `None` before serialisation, so it never reaches any build output. Attempting to serialise a non-`None` `local_path` will cause an assertion faliure.
When a path is remapped, a `RealFileName::Remapped` variant is created. The original path is preserved in `local_path` field and the remapped path is saved in `virtual_name` field. Previously, the `local_path` is directly modified which goes against its purpose of "suitable for reading from the file system on the local host".
`rustc_span::SourceFile`'s fields `unmapped_path` (introduced by #44940) and `name_was_remapped` (introduced by #41508 when `--remap-path-prefix` feature originally added) are removed, as these two pieces of information can be inferred from the `name` field: if it's anything other than a `FileName::Real(_)`, or if it is a `FileName::Real(RealFileName::LocalPath(_))`, then clearly `name_was_remapped` would've been false and `unmapped_path` would've been `None`. If it is a `FileName::Real(RealFileName::Remapped{local_path, virtual_name})`, then `name_was_remapped` would've been true and `unmapped_path` would've been `Some(local_path)`.
cc `@eddyb` who implemented `/rustc/...` path devirtualisation
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This function returned a fake `DefIndex`, with no indication that it was
fake, when it was provided with a `FakeDefId::Fake`. Every use of the
function uses the returned `DefIndex` in a call to
`tcx.local_def_id_to_hir_id()`, which I'm pretty sure would panic if it
were given a fake `DefIndex`.
I removed the function and replaced all calls to it with a call to
`expect_real()` followed by `DefId::expect_local()` (that's a function
on the *real* `DefId`).
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That PR caused multiple test failures when Rust's channel is changed
from nightly to anything else. The commit will have to be landed again
after the test suite is fixed.
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