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This reverts commit a8ecb79d19e1bad732dae7f34f2481499db12f7c, reversing
changes made to 40c4e05013c1805044ae2611ba0b95c0acecd331.
(cherry picked from commit 9ea587e023dfa4458c5003ba74ae02bd146ec2df)
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This prevents the included test case from getting at nightly-only
features when run on stable. The harness builds with
RUSTC_BOOTSTRAP, but the bundle doesn't.
(cherry picked from commit 9cf531d26f474917f21a750d8b5fb61bbbae8faa)
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(cherry picked from commit 4c939db0e775df21a0b409b7603eaaf0056e8f86)
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(cherry picked from commit dc04c0ca48c7285d74a0489354ed7d013dc25799)
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Correctly escape hashtags when running `invalid_rust_codeblocks` lint
Fixes #136899.
We forgot to use `map_line` when we wrote this lint.
r? ``@notriddle``
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```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
--> $DIR/attempted-access-non-fatal.rs:7:15
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LL | let _ = 2.l;
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help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
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LL - let _ = 2.l;
LL + let _ = 2.0f64;
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```
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Check Sizedness of return type in WF
Still need to clean this up a bit. This should fix https://github.com/rust-lang/trait-system-refactor-initiative/issues/150.
r? lcnr
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Enable more tests on Windows
As part of the discussion of https://github.com/rust-lang/compiler-team/issues/822 on Zulip, it was mentioned that problems with the i686-pc-windows-gnu target may have resulted in tests being disabled on Windows.
So in this PR, I've ripped out all our `//@ ignore-windows` directives, then re-added all the ones that are definitely required based on the outcome of try-builds, and in some cases I've improved the justification or tightened the directives to `//@ ignore-msvc` or ignoring specific targets.
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Compiler: Finalize dyn compatibility renaming
Update the Reference link to use the new URL fragment from https://github.com/rust-lang/reference/pull/1666 (this change has finally hit stable). Fixes a FIXME.
Follow-up to #130826.
Part of #130852.
~~Blocking it on #133372.~~ (merged)
r? ghost
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r=notriddle,aDotInTheVoid
[rustdoc] Add `--extract-doctests` command-line flag
Part of https://github.com/rust-lang/rust/issues/134529.
It was discussed with the Rust-for-Linux project recently that they needed a way to extract doctests so they can modify them and then run them more easily (look for "a way to extract doctests" [here](https://github.com/Rust-for-Linux/linux/issues/2)).
For now, I output most of `ScrapedDoctest` fields in JSON format with `serde_json`. So it outputs the following information:
* filename
* line
* langstr
* text
cc `@ojeda`
r? `@notriddle`
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Reword resolve errors caused by likely missing crate in dep tree
Reword label and add `help`:
```
error[E0432]: unresolved import `some_novel_crate`
--> f704.rs:1:5
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1 | use some_novel_crate::Type;
| ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `some_novel_crate`
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= help: if you wanted to use a crate named `some_novel_crate`, use `cargo add some_novel_crate` to add it to your `Cargo.toml`
```
Fix #133137.
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```
error[E0432]: unresolved import `some_novel_crate`
--> file.rs:1:5
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1 | use some_novel_crate::Type;
| ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `some_novel_crate`
```
On resolve errors where there might be a missing crate, mention `cargo add foo`:
```
error[E0433]: failed to resolve: use of unresolved module or unlinked crate `nope`
--> $DIR/conflicting-impl-with-err.rs:4:11
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LL | impl From<nope::Thing> for Error {
| ^^^^ use of unresolved module or unlinked crate `nope`
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= help: if you wanted to use a crate named `nope`, use `cargo add nope` to add it to your `Cargo.toml`
```
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This CL makes a number of small changes to dyn compatibility errors:
- "object safety" has been renamed to "dyn-compatibility" throughout
- "Convert to enum" suggestions are no longer generated when there
exists a type-generic impl of the trait or an impl for `dyn OtherTrait`
- Several error messages are reorganized for user readability
Additionally, the dyn compatibility error creation code has been
split out into functions.
cc #132713
cc #133267
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Rework dyn trait lowering to stop being so intertwined with trait alias expansion
This PR reworks the trait object lowering code to stop handling trait aliases so funky, and removes the `TraitAliasExpander` in favor of a much simpler design. This refactoring is important for making the code that I'm writing in https://github.com/rust-lang/rust/pull/133397 understandable and easy to maintain, so the diagnostics regressions are IMO inevitable.
In the old trait object lowering code, we used to be a bit sloppy with the lists of traits in their unexpanded and expanded forms. This PR largely rewrites this logic to expand the trait aliases *once* and handle them more responsibly throughout afterwards.
Please review this with whitespace disabled.
r? lcnr
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rustdoc: Fix flaky doctest test
Fixes #135660.
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https://github.com/rust-lang/rust/pull/134808 made --bless remove empty
expected files. Remove some empty files that were causing noise in
unrelated `--bless` invocations.
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Signed-off-by: peicuiping <ezc5@sina.cn>
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Point at lint name instead of whole attr for gated lints
```
warning: unknown lint: `test_unstable_lint`
--> $DIR/warn-unknown-unstable-lint-inline.rs:4:10
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LL | #![allow(test_unstable_lint, another_unstable_lint)]
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= note: the `test_unstable_lint` lint is unstable
= help: add `#![feature(test_unstable_lint)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
note: the lint level is defined here
--> $DIR/warn-unknown-unstable-lint-inline.rs:3:9
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LL | #![warn(unknown_lints)]
| ^^^^^^^^^^^^^
warning: unknown lint: `test_unstable_lint`
--> $DIR/warn-unknown-unstable-lint-inline.rs:4:29
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LL | #![allow(test_unstable_lint, another_unstable_lint)]
| ^^^^^^^^^^^^^^^^^^^^^
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= note: the `another_unstable_lint` lint is unstable
= help: add `#![feature(another_unstable_lint)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
```
This is particularly relevant when there are multiple lints in the same `warn` attribute. Pointing at the smaller span makes it clearer which one the warning is complaining about.
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```
warning: unknown lint: `test_unstable_lint`
--> $DIR/warn-unknown-unstable-lint-inline.rs:4:10
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LL | #![allow(test_unstable_lint, another_unstable_lint)]
| ^^^^^^^^^^^^^^^^^^
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= note: the `test_unstable_lint` lint is unstable
= help: add `#![feature(test_unstable_lint)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
note: the lint level is defined here
--> $DIR/warn-unknown-unstable-lint-inline.rs:3:9
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LL | #![warn(unknown_lints)]
| ^^^^^^^^^^^^^
warning: unknown lint: `test_unstable_lint`
--> $DIR/warn-unknown-unstable-lint-inline.rs:4:29
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LL | #![allow(test_unstable_lint, another_unstable_lint)]
| ^^^^^^^^^^^^^^^^^^^^^
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= note: the `test_unstable_lint` lint is unstable
= help: add `#![feature(test_unstable_lint)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
note: the lint level is defined here
--> $DIR/warn-unknown-unstable-lint-inline.rs:3:9
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LL | #![warn(unknown_lints)]
| ^^^^^^^^^^^^^
```
This is particularly relevant when there are multiple lints in the same `warn` attribute. Pointing at the smaller span makes it clearer which one the warning is complaining about.
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Remove `rustc::existing_doc_keyword` lint
The check doesn't require a lint.
r? ``@GuillaumeGomez``
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`CheckAttrVisitor::check_doc_keyword` checks `#[doc(keyword = "..")]`
attributes to ensure they are on an empty module, and that the value is
a non-empty identifier.
The `rustc::existing_doc_keyword` lint checks these attributes to ensure
that the value is the name of a keyword.
It's silly to have two different checking mechanisms for these
attributes. This commit does the following.
- Changes `check_doc_keyword` to check that the value is the name of a
keyword (avoiding the need for the identifier check, which removes a
dependency on `rustc_lexer`).
- Removes the lint.
- Updates tests accordingly.
There is one hack: the `SelfTy` FIXME case used to used to be handled by
disabling the lint, but now is handled with a special case in
`is_doc_keyword`. That hack will go away if/when the FIXME is fixed.
Co-Authored-By: Guillaume Gomez <guillaume1.gomez@gmail.com>
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Correctly handle comments in attributes in doctests source code
Fixes https://github.com/rust-lang/rust/issues/134221.
The problem was that attributes are "inlined" (backlines are stripped), then when there is an inline comment inside it, the attribute is never considered valid (since unclosed). Fix was to simply put back backlines in case it's a multiline attribute.
r? ``@notriddle``
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Don't consider `///` and `//!` docstrings to be empty for the purposes of multiline span rendering.
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span rendering
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Consider comments and bare delimiters the same as an "empty line" for purposes of hiding rendered code output of long multispans. This results in more aggressive shortening of rendered output without losing too much context, specially in `*.stderr` tests that have "hidden" comments.
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```
help: consider restricting type parameter `T` with traits `Copy` and `Trait`
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LL | fn duplicate_custom<T: Copy + Trait>(t: S<T>) -> (S<T>, S<T>) {
| ++++++++++++++
```
```
help: consider restricting type parameter `V` with trait `Copy`
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LL | fn index<'a, K, V: std::marker::Copy>(map: &'a HashMap<K, V>, k: K) -> &'a V {
| +++++++++++++++++++
```
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Do not emit `missing_doc_code_examples` rustdoc lint on module and a few other items
It doesn't make sense to expect modules to have code examples. Same goes for:
* Trait aliases
* Foreign items
* Associated types and constants
Should make the use of this lint a bit nicer.
r? ``@notriddle``
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Update more 2024 tests to remove -Zunstable-options
This removes `-Zunsable-options` from more tests that I missed in https://github.com/rust-lang/rust/pull/133349.
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