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And introduce two new directives for ui tests:
* `run-crash`
* `run-fail-or-crash`
Normally a `run-fail` ui test like tests that panic shall not be
terminated by a signal like `SIGABRT`. So begin having that as a hard
requirement.
Some of our current tests do terminate by a signal/crash however.
Introduce and use `run-crash` for those tests. Note that Windows crashes
are not handled by signals but by certain high bits set on the process
exit code. Example exit code for crash on Windows: `0xc000001d`.
Because of this, we define "crash" on all platforms as "not exit with
success and not exit with a regular failure code in the range 1..=127".
Some tests behave differently on different targets:
* Targets without unwind support will abort (crash) instead of exit with
failure code 101 after panicking. As a special case, allow crashes for
`run-fail` tests for such targets.
* Different sanitizer implementations handle detected memory problems
differently. Some abort (crash) the process while others exit with
failure code 1. Introduce and use `run-fail-or-crash` for such tests.
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As a temporary measure while a proper fix for
`tests/ui/sized-hierarchy/incomplete-inference-issue-143992.rs`
is implemented, make `MetaSized` obligations always hold. In effect,
temporarily reverting the `sized_hierarchy` feature. This is a small
change that can be backported.
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In the suggestion machinery for borrowing expressions and types, always use the available obligation `Span` to find the appropriate `Expr` to perform appropriateness checks no the `ExprKind` instead of on the textual snippet corresponding to the `Span`.
Unify the logic for the case where `&` *and* `&mut` are appropriate with the logic for only one of those cases.
Handle the case when `S::foo()` should have been `<&S>::foo()` (instead of suggesting the prior `&S::foo()`.
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Rollup of 12 pull requests
Successful merges:
- rust-lang/rust#136801 (Implement `Random` for tuple)
- rust-lang/rust#141867 (Describe Future invariants more precisely)
- rust-lang/rust#142760 (docs(fs): Touch up grammar on lock api)
- rust-lang/rust#143181 (Improve testing and error messages for malformed attributes)
- rust-lang/rust#143210 (`tests/ui`: A New Order [19/N] )
- rust-lang/rust#143212 (`tests/ui`: A New Order [20/N])
- rust-lang/rust#143230 ([COMPILETEST-UNTANGLE 2/N] Make some compiletest errors/warnings/help more visually obvious)
- rust-lang/rust#143240 (Port `#[rustc_object_lifetime_default]` to the new attribute parsing …)
- rust-lang/rust#143255 (Do not enable LLD by default in the dist profile)
- rust-lang/rust#143262 (mir: Mark `Statement` and `BasicBlockData` as `#[non_exhaustive]`)
- rust-lang/rust#143269 (bootstrap: make comment more clear)
- rust-lang/rust#143279 (Remove `ItemKind::descr` method)
Failed merges:
- rust-lang/rust#143237 (Port `#[no_implicit_prelude]` to the new attribute parsing infrastructure)
r? `@ghost`
`@rustbot` modify labels: rollup
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Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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Co-authored-by: Anne Stijns <anstijns@gmail.com>
Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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As a performance optimization, skip elaborating the supertraits of
`Sized`, and if a `MetaSized` obligation is being checked, then look for
a `Sized` predicate in the parameter environment. This makes the
`ParamEnv` smaller which should improve compiler performance as it avoids
all the iteration over the larger `ParamEnv`.
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These tests just need blessing, they don't have any interesting behaviour
changes.
Some of these tests have new errors because `LegacyReceiver` cannot be
proven to be implemented now that it is also testing for `MetaSized` -
but this is just a consequence of the other errors in the test.
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These tests necessarily need to change now that `?Sized` is not
sufficient to accept extern types and `PointeeSized` is now necessary. In
addition, the `size_of_val`/`align_of_val` test can now be changed to
expect an error.
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also adjust the wording a little so that we don't say "the error occurred here" for two different spans
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Because that causes an assertion failure in debug builds.
Fixes #140884.
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vectorcall ABI: require SSE2
According to the official docs at https://learn.microsoft.com/en-us/cpp/cpp/vectorcall, SSE2 is required for this ABI. Add a check that enforces this.
I put this together with the other checks ensuring the target features required for a function are present... however, since the ABI is known pre-monomorphization, it would be possible to do this check earlier, which would have the advantage of checking even in `cargo check`. It would have the disadvantage of spreading this code in yet more places.
The first commit just does a little refactoring of the mono-time ABI check to make it easier to add the new check.
Cc `@workingjubilee`
try-job: dist-i586-gnu-i586-i686-musl
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Rollup of 7 pull requests
Successful merges:
- #136107 (Introduce CoercePointeeWellformed for coherence checks at typeck stage)
- #136155 (Enable sanitizers on MSVC CI jobs)
- #136524 (Delay bug when method confirmation cannot upcast object pick of self)
- #136584 (Prevent generic pattern types from being used in libstd)
- #136603 (compiler: gate `extern "{abi}"` in ast_lowering)
- #136821 (assign marcoieni and jdno to infra-ci PRs)
- #136825 (Update books)
r? `@ghost`
`@rustbot` modify labels: rollup
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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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By moving this stability check into AST lowering, we effectively make
it impossible to accidentally miss, as it must happen to generate HIR.
Also, we put the ABI-stability code next to code that actually uses it!
This allows code that wants to reason about backend ABI implementations
to stop worrying about high-level concerns like syntax stability,
while still leaving it as the authority on what ABIs actually exist.
It also makes it easy to refactor things to have more consistent errors.
For now, we only apply this to generalize the existing messages a bit.
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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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Revert <https://github.com/rust-lang/rust/pull/131669> due to ICE
reports:
- <https://github.com/rust-lang/rust/issues/134059> (real-world)
- <https://github.com/rust-lang/rust/issues/134060> (fuzzing)
The changes can be re-landed with those cases addressed.
This reverts commit 703bb982303ecab02fec593899639b4c3faecddd, reversing
changes made to f415c07494b98e4559e4b13a9c5f867b0e6b2444.
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!Sized)
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Done with
```bash
sd '//@ pretty-expanded.*\n' '' tests/ui/**/*.rs
```
and
```
sd '//@pretty-expanded.*\n' '' tests/ui/**/*.rs
```
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functions instead
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Remove the "which is required by `{root_obligation}`" post-script in
"the trait `X` is not implemented for `Y`" explanation in E0277. This
information is already conveyed in the notes explaining requirements,
making it redundant while making the text (particularly in labels)
harder to read.
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
vs the prior
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`, which is required by `Option<NotCopy>: Copy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
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These tests depend on the internal logic of rustc regarding handling
very large objects. Fix them to reflect rustc_abi::obj_size_bound diffs.
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Add a special case for `CStr`/`CString` in the `improper_ctypes` lint
Revives #120176. Just needed to bless a test and fix an argument, but seemed reasonable to me otherwise.
Instead of saying to "consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct", we now tell users to "Use `*const ffi::c_char` instead, and pass the value from `CStr::as_ptr()`" when the type involved is a `CStr` or a `CString`.
The suggestion is not made for `&mut CString` or `*mut CString`.
r? ``````@cjgillot`````` (since you were the reviewer of the original PR #120176, but feel free to reroll)
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Instead of saying to "consider adding a `#[repr(C)]` or
`#[repr(transparent)]` attribute to this struct", we now tell users to
"Use `*const ffi::c_char` instead, and pass the value from
`CStr::as_ptr()`" when the type involved is a `CStr` or a `CString`.
Co-authored-by: Jieyou Xu <jieyouxu@outlook.com>
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Use ordinal number in argument error
Add an ordinal number to two argument errors ("unexpected" and "missing") for ease of understanding error.
```
error[E0061]: this function takes 3 arguments but 2 arguments were supplied
--> test.rs:11:5
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11 | f(42, 'a');
| ^ --- 2nd argument of type `f32` is missing
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(snip)
error[E0061]: this function takes 3 arguments but 4 arguments were supplied
--> test.rs:12:5
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12 | f(42, 42, 1.0, 'a');
| ^ ----
| | |
| | unexpected 2nd argument of type `{integer}`
| help: remove the extra argument
```
To get an ordinal number, I copied `ordinalize` from other crate `rustc_resolve` because I think it is too much to link `rustc_resolve` for this small function. Please let me know if there is a better way.
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Fix error message
Fix tests
Format
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