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Remake of "List matching impls on type aliases"
* 4b1d13d9841c815915433ca2a3088a8e3e97ad96
* 6f552c800b38b3e71c5e33a295e8b490d2018c71
* 2ce7cd906bde70d8cbd9b07b31c6a7bf1131c345
Partially reverts "Fix infinite loop when retrieving impls for
type alias", but keeps the test case.
This version of the PR avoids the infinite loop by structurally
matching types instead of using full unification. This version
does not support type alias trait bounds, but the compiler does
not enforce those anyway
(https://github.com/rust-lang/rust/issues/21903).
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rustdoc: Rename typedef to type alias
This matches the name used by the [Rust Reference][1], which is also what
people usually call these items.
[1]: https://doc.rust-lang.org/reference/items/type-aliases.html
r? `@GuillaumeGomez`
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Rustdoc: Add unstable --no-html-source flag
Fixes https://github.com/rust-lang/rust/issues/115060.
This is the equivalent of `#![doc(no_html_source)]` but on the command-line. It disables the generation of the source pages (and of the links pointing to them as well).
The motivation behind this is to enable to reduce documentation size when generating it in some locations without enforcing this to end users or adding a new feature to enable/disable the crate attribute.
r? `@notriddle`
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Fixes #115064
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This matches the name used by the Rust Reference [1], which is also what
people usually call these items.
[1]: https://doc.rust-lang.org/reference/items/type-aliases.html
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Add warning block support in rustdoc
Fixes https://github.com/rust-lang/rust/issues/79710.
You can test it [here](https://rustdoc.crud.net/imperio/warning-block/foo/struct.Foo.html). It currently looks like this:
So a few things to note:
* Since it's a new add and it's changing the UI, we'll need to go through an FCP.
* Does the UI looks good?
* Is the way picked to add a warning block ok for everyone? The discussion on the issue seemed to be in favour of this solution but it doesn't hurt to double-check.
cc `@rust-lang/rustdoc`
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- Currently it will panic due to the resolution's caching issue
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rustdoc: Fixes with --test-run-directory and relative paths.
Fixes #112191
Fixes #112210
This fixes some issues with `--test-run-directory` and its interaction with `--runtool` and `--persist-doctests`. Relative directories don't work with `Command::current_dir` very well because it has platform-specific behavior with relative paths. This fixes it by avoiding the use of relative paths.
This is needed because cargo is switching to use `--test-run-directory`, and it uses relative paths when interacting with rustdoc/rustc.
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r=notriddle
Improve code readability by moving fmt args directly into the string
There are some of occurrences where I also transformed `write!(f, "{}", x)` into `f.write_str(x.as_str())`.
r? `@notriddle`
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we are migrating to askama
see https://github.com/rust-lang/rust/issues/108868
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Add `{Local}ModDefId` to more strongly type DefIds`
Based on #110862 by `@Nilstrieb`
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Removes two pieces of mutable state.
Follow up to #114622.
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r=oli-obk
Store the laziness of type aliases in their `DefKind`
Previously, we would treat paths referring to type aliases as *lazy* type aliases if the current crate had lazy type aliases enabled independently of whether the crate which the alias was defined in had the feature enabled or not.
With this PR, the laziness of a type alias depends on the crate it is defined in. This generally makes more sense to me especially if / once lazy type aliases become the default in a new edition and we need to think about *edition interoperability*:
Consider the hypothetical case where the dependency crate has an older edition (and thus eager type aliases), it exports a type alias with bounds & a where-clause (which are void but technically valid), the dependent crate has the latest edition (and thus lazy type aliases) and it uses that type alias. Arguably, the bounds should *not* be checked since at any time, the dependency crate should be allowed to change the bounds at will with a *non*-major version bump & without negatively affecting downstream crates.
As for the reverse case (dependency: lazy type aliases, dependent: eager type aliases), I guess it rules out anything from slight confusion to mild annoyance from upstream crate authors that would be caused by the compiler ignoring the bounds of their type aliases in downstream crates with older editions.
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This fixes #114468 since before, my assumption that the type alias associated with a given weak projection was lazy (and therefore had its variances computed) did not necessarily hold in cross-crate scenarios (which [I kinda had a hunch about](https://github.com/rust-lang/rust/pull/114253#discussion_r1278608099)) as outlined above. Now it does hold.
`@rustbot` label F-lazy_type_alias
r? `@oli-obk`
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Convert builtin "global" late lints to run per module
The compiler currently has 4 non-incremental lints:
1. `clashing_extern_declarations`;
2. `missing_debug_implementations`;
3. ~`unnameable_test_items`;~ changed by https://github.com/rust-lang/rust/pull/114414
4. `missing_docs`.
Non-incremental lints get reexecuted for each compilation, which is slow. Moreover, those lints are allow-by-default, so run for nothing most of the time. This PR attempts to make them more incremental-friendly.
`clashing_extern_declarations` is moved to a standalone query.
`missing_debug_implementation` can use `non_blanket_impls_for_ty` instead of recomputing it.
`missing_docs` is harder as it needs to track if there is a `doc(hidden)` module surrounding. I hack around this using the lint level engine. That's easy to implement and allows to re-enable the lint for a re-exported module, while a more proper solution would reuse the same device as `unnameable_test_items`.
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Migrate GUI colors test to original CSS color format
Follow-up of https://github.com/rust-lang/rust/pull/111459.
r? `@notriddle`
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Lots of tiny incremental simplifications of `EmitterWriter` internals
ignore the first commit, it's https://github.com/rust-lang/rust/pull/114088 squashed and rebased, but it's needed to use to use `derive_setters`, as they need a newer `syn` version.
Then this PR starts out with removing many arguments that are almost always defaulted to `None` or `false` and replace them with builder methods that can set these fields in the few cases that want to set them.
After that it's one commit after the other that removes or merges things until everything becomes some very simple trait objects
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Some parser and AST cleanups
Things I found while looking closely at this code.
r? `@petrochenkov`
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get auto traits for parallel rustc
test for #106930
#[Edit] Since this doesn't block try build now, we can close https://github.com/rust-lang/rust/issues/106930
fixes #106930
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Signed-off-by: SparrowLii <liyuan179@huawei.com>
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This code currently uses a `while` loop and gathers token trees into a
vector, but it only succeeds in the case where there is a single token
tree. We can instead just call `parse_token_tree` once and then look for
`Eof` to detect the success case.
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It has a single call site.
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r? @joshtripplet
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colored and uncolored printing
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