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(cherry picked from commit 8b576d553678688ece127b6f6a25b611e8726c05)
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Which is a variant of [`unix_sigpipe-list.rs`][1] but where a string is
used instead of an identifier. This makes it more similar to the proper
form `#[unix_sigpipe = "sig_dfl"]` and thus more likely to be written by
users by mistake. Also rename the first test to be more in line with the
terminology of [The Reference][2].
[1]: https://github.com/rust-lang/rust/blob/master/tests/ui/attributes/unix_sigpipe/unix_sigpipe-list.rs
[2]: https://doc.rust-lang.org/reference/attributes.html#meta-item-attribute-syntax
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The `sig_dfl` variant of the attribute is the most likely variant to be
stabilized first, and thus to become the "most allowed" variant of the
attribute. Because of this, it is the most appropriate variant to use in
syntax tests, because even if the most allowed variant is used, the
compiler shall still emit errors if it e.g. is used in the wrong places.
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Remove `Word` from the `unix_sigpipe` attribute template so that plain
`#[unix_sigpipe]` is not included in suggestions of valid forms of the
attribute. Also re-arrange diagnostics code slightly to avoid duplicate
diagnostics.
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r=compiler-errors
Fix misleading message in struct repr alignment and packed
Fixes #121425
By the way, fix the spans for the argument in the second commit.
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unix_sigpipe: Simple fixes and improvements in tests
In https://github.com/rust-lang/rust/pull/120832 I included 5 preparatory commits.
It will take a while before discussions there and in https://github.com/rust-lang/rust/issues/62569 is settled, so here is a PR that splits out 4 of the commits that are easy to review, to get them out of the way.
r? ``@davidtwco`` who already approved these commits in https://github.com/rust-lang/rust/pull/120832 (but I have tweaked them a bit and rebased them since then).
For the convenience of my reviewer, here are the full commit messages of the commits:
<details>
<summary>Click to expand</summary>
```
commit 948b1d68abdf6ccde608831401dfe35af4a8cb04 (HEAD -> unix_sigpipe-tests-fixes, origin/unix_sigpipe-tests-fixes)
Author: Martin Nordholts <martin.nordholts@codetale.se>
Date: Fri Feb 9 07:57:27 2024 +0100
tests: Add unix_sigpipe-different-duplicates.rs test variant
To make sure that
#[unix_sigpipe = "x"]
#[unix_sigpipe = "y"]
behaves like
#[unix_sigpipe = "x"]
#[unix_sigpipe = "x"]
commit d14f15862d2ac7111f70efe82882fb3575167a53
Author: Martin Nordholts <martin.nordholts@codetale.se>
Date: Fri Feb 9 08:47:47 2024 +0100
tests: Combine unix_sigpipe-not-used.rs and unix_sigpipe-only-feature.rs
The only difference between the files is the presence/absence of
#![feature(unix_sigpipe)]
attribute. Avoid duplication by using revisions instead.
commit a1cb3dba840fd56a7f9a0c90346a1fcddc641f9c
Author: Martin Nordholts <martin.nordholts@codetale.se>
Date: Fri Feb 9 06:44:56 2024 +0100
tests: Rename unix_sigpipe.rs to unix_sigpipe-bare.rs for clarity
The test is for the "bare" variant of the attribute that looks like this:
#[unix_sigpipe]
which is not allowed, because it must look like this:
#[unix_sigpipe = "sig_ign"]
commit e060274e55a5b09fe6ace6dfe72ca0cca663b711
Author: Martin Nordholts <martin.nordholts@codetale.se>
Date: Fri Feb 9 05:48:24 2024 +0100
tests: Fix typo unix_sigpipe-error.rs -> unix_sigpipe-sig_ign.rs
There is no error expected. It's simply the "regular" test for sig_ign.
So rename it.
```
</details>
Tracking issue: https://github.com/rust-lang/rust/issues/97889
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In `auxiliary/sigpipe-utils.rs`, all we want to know is the current
`SIGPIPE` disposition. We should not change it. So use `libc::sigaction`
instead of `libc::signal`. That way we can also remove the code that
restores it.
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To make sure that
#[unix_sigpipe = "x"]
#[unix_sigpipe = "y"]
behaves like
#[unix_sigpipe = "x"]
#[unix_sigpipe = "x"]
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The only difference between the files is the presence/absence of
#![feature(unix_sigpipe)]
attribute. Avoid duplication by using revisions instead.
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The test is for the "bare" variant of the attribute that looks like this:
#[unix_sigpipe]
which is not allowed, because it must look like this:
#[unix_sigpipe = "sig_ign"]
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There is no error expected. It's simply the "regular" test for sig_ign.
So rename it.
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Do not provide a structured suggestion when the arguments don't match.
```
error[E0599]: no method named `test_mut` found for struct `Vec<{integer}>` in the current scope
--> $DIR/auto-ref-slice-plus-ref.rs:7:7
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LL | a.test_mut();
| ^^^^^^^^
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= help: items from traits can only be used if the trait is implemented and in scope
note: `MyIter` defines an item `test_mut`, perhaps you need to implement it
--> $DIR/auto-ref-slice-plus-ref.rs:14:1
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LL | trait MyIter {
| ^^^^^^^^^^^^
help: there is a method `get_mut` with a similar name, but with different arguments
--> $SRC_DIR/core/src/slice/mod.rs:LL:COL
```
Consider methods beyond inherent ones when suggesting typos.
```
error[E0599]: no method named `owned` found for reference `&dyn Foo` in the current scope
--> $DIR/object-pointer-types.rs:11:7
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LL | fn owned(self: Box<Self>);
| --------- the method might not be found because of this arbitrary self type
...
LL | x.owned();
| ^^^^^ help: there is a method with a similar name: `to_owned`
```
Fix #101013.
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```
error[E0308]: mismatched types
--> $DIR/rustc_confusables_std_cases.rs:20:14
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LL | x.append(42);
| ------ ^^ expected `&mut Vec<{integer}>`, found integer
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| arguments to this method are incorrect
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= note: expected mutable reference `&mut Vec<{integer}>`
found type `{integer}`
note: method defined here
--> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
help: you might have meant to use `push`
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LL | x.push(42);
| ~~~~
```
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Help with common API confusion, like asking for `push` when the data structure really has `append`.
```
error[E0599]: no method named `size` found for struct `Vec<{integer}>` in the current scope
--> $DIR/rustc_confusables_std_cases.rs:17:7
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LL | x.size();
| ^^^^
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help: you might have meant to use `len`
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LL | x.len();
| ~~~
help: there is a method with a similar name
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LL | x.resize();
| ~~~~~~
```
#59450
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Attribute values must be literals. The error you get when that doesn't
hold is pretty bad, e.g.:
```
unexpected expression: 1 + 1
```
You also get the same error if the attribute value is a literal, but an
invalid literal, e.g.:
```
unexpected expression: "foo"suffix
```
This commit does two things.
- Changes the error message to "attribute value must be a literal",
which gives a better idea of what the problem is and how to fix it. It
also no longer prints the invalid expression, because the carets below
highlight it anyway.
- Separates the "not a literal" case from the "invalid literal" case.
Which means invalid literals now get the specific error at the literal
level, rather than at the attribute level.
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Co-authored-by: Adrian <adrian.iosdev@gmail.com>
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CC #89566.
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Rollup of 5 pull requests
Successful merges:
- #117081 (fix typos in comments)
- #117091 (`OptWithInfcx` naming nits, trait bound simplifications)
- #117092 (Add regression test for #117058)
- #117093 (Update books)
- #117105 (remove change-id assertion in bootstrap test)
r? `@ghost`
`@rustbot` modify labels: rollup
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The compiler should emit a more specific error when the `#[macro_export]`
attribute is present on a decl macro, instead of silently ignoring it.
This commit adds the required error message in rustc_passes/messages.ftl,
as well as a note. A new variant is added to the `errors::MacroExport`
enum, specifically for the case where the attribute is added to a macro
2.0.
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"no method" errors on standard library types
The standard library developer can annotate methods on e.g.
`BTreeSet::push` with `#[rustc_confusables("insert")]`. When the user
mistypes `btreeset.push()`, `BTreeSet::insert` will be suggested if
there are no other candidates to suggest.
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tracing loggers at their own discretion
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Move format_args!() into AST (and expand it during AST lowering)
Implements https://github.com/rust-lang/compiler-team/issues/541
This moves FormatArgs from rustc_builtin_macros to rustc_ast_lowering. For now, the end result is the same. But this allows for future changes to do smarter things with format_args!(). It also allows Clippy to directly access the ast::FormatArgs, making things a lot easier.
This change turns the format args types into lang items. The builtin macro used to refer to them by their path. After this change, the path is no longer relevant, making it easier to make changes in `core`.
This updates clippy to use the new language items, but this doesn't yet make clippy use the ast::FormatArgs structure that's now available. That should be done after this is merged.
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