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- Don't mark impl trait as an error
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These two lints have no relation other than both being nightly-only.
This allows stabilizing intra-doc links without stabilizing
missing_doc_code_examples.
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The additional note helps explaining why the lint was triggered and that
--document-private-items directly influences the link resolution.
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Change the logic such that linking from a public to a private item always
triggers intra_doc_link_resolution_failure. Previously, the warning was
not emitted when --document-private-items is passed.
Also don't rely anymore on the item's visibility, which would falsely trigger
the lint now that the check for --document-private-items is gone.
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This commit refactors intra-doc link error reporting to deduplicate code
and decouple error construction from the type of error. This greatly
improves flexibility at each error construction site, while reducing the
complexity of the diagnostic creation.
This commit also rewords the diagnostics for clarity and style:
- Diagnostics should not end in periods.
- It's unnecessary to say "ignoring it". Since this is a warning by
default, it's already clear that the link is ignored.
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intra_doc_resolution_failure is not a lint.
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Move #[doc(alias)] check in rustc
Part of #73721.
r? @ollie27
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This matches the previous behavior of everybody_loops and is also more
consistent than special-casing impls.
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`evaluate_obligation` can only be run on types that are already valid.
So rustdoc still has to run typeck even though it doesn't care about the
result.
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Previously, rustdoc would issue a delay_span_bug ICE on the following code:
```rust
pub fn a() -> impl Fn() -> u32 {
|| content::doesnt::matter()
}
```
This wasn't picked up earlier because having `type Alias = impl Trait;`
in the same module caused _all closures_ to be typechecked, even if they
wouldn't normally. Additionally, if _any_ error was emitted, no
delay_span_bug would be emitted. So as part of this commit all of the
tests were separated out into different files.
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Instead, report the error.
This emits the errors on-demand, without special-casing `impl Trait`, so
it should catch all ICEs of this kind, including ones that haven't been
found yet.
Since the error is emitted during type-checking there is less info about
the error; see comments in the code for details.
- Add test case for -> impl Trait
- Add test for impl trait with alias
- Move EmitIgnoredResolutionErrors to rustdoc
This makes `fn typeck_item_bodies` public, which is not desired behavior.
That change should be removed once
https://github.com/rust-lang/rust/pull/74070 is merged.
- Don't visit nested closures twice
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- Remove unnecessary `should_loop` variable
- Report errors for trait implementations
These should give resolution errors because they are visible outside the
current scope. Without these errors, rustdoc will give ICEs:
```
thread 'rustc' panicked at 'attempted .def_id() on invalid res: Err', /home/joshua/src/rust/src/libstd/macros.rs:16:9
15: rustc_hir::def::Res<Id>::def_id
at /home/joshua/src/rust/src/librustc_hir/def.rs:382
16: rustdoc::clean::utils::register_res
at src/librustdoc/clean/utils.rs:627
17: rustdoc::clean::utils::resolve_type
at src/librustdoc/clean/utils.rs:587
```
- Add much more extensive tests
+ fn -> impl -> fn
+ fn -> impl -> fn -> macro
+ errors in function parameters
+ errors in trait bounds
+ errors in the type implementing the trait
+ unknown bounds for the type
+ unknown types in function bodies
+ errors generated by macros
- Use explicit state instead of trying to reconstruct it from random info
- Use an enum instead of a boolean
- Add example of ignored error
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rustdoc: Allow linking from private items to private types
Fixes #74134
After PR #72771 this would trigger an intra_doc_link_resolution_failure warning
when rustdoc is invoked without --document-private-items. Links from private
items to private types are however never actually generated in that case and
thus shouldn't produce a warning. These links are in fact a very useful tool to
document crate internals.
Tests are added for all 4 combinations of public/private items and link
targets. Test 1 is the case mentioned above and fails without this commit. Tests
2 - 4 passed before already but are added nonetheless to prevent regressions.
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As per the discussion in PR #74147, the 4 individual tests are replaced by a
single one.
The test is expanded to cover all 4 public/private cases, each with and without
--document-private-items.
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- Pass around document_private a lot more
- Add tests
+ Add tests for intra-doc links to private items
+ Add ignored tests for warnings in reference links
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Enforce doc alias check
Part of #50146.
r? @ollie27
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Check code blocks tags
Fixes #71347.
Explanations here: I realized recently that it was a common issue to confuse/misspell tags on code blocks. This is actually quite a big issue since it generally ends up in a code blocks being ignored since it's not being considered as a rust one. With this new warning, users will at least be notified about it.
PS: some improvements can be done on the error rendering but considering how big the PR already is, I think it's better to do it afterwards.
r? @ollie27
cc @rust-lang/rustdoc
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These were all build-pass before and don't seem to need it.
Helps with #62277
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Add lint when no doc is present at the crate-level
Follow-up of #66267.
r? @kinnison
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rustdoc: Fix handling of compile errors when running `rustdoc --test`
* Call `abort_if_errors` so all errors actually stop rustdoc.
* Don't panic with "compiler aborted in rustdoc!", instead just exit to avoid the ugly panic message.
* Use rlib as the crate type when searching for doctests matching what is used for doc generation so `#[no_std]` crates don't create "no global memory allocator" errors.
Fixes #52243
Fixes #54010
r? @GuillaumeGomez
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* Call `abort_if_errors` so all errors actually stop rustdoc.
* Don't panic with "compiler aborted in rustdoc!", instead just exit to avoid the ugly panic message.
* Use rlib as the crate type when searching for doctests matching what is used for doc generation so `#[no_std]` crates don't create "no global memory allocator" errors.
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For some errors the lexer will unwind so we need to handle that in addition to handling `token::Unknown`.
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