Rollup of 8 pull requests #121565
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Rollup of 8 pull requests #121565
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Closes rust-lang#106421 This was already fixed by f5d43a0, but now the test cases are added.
Fixes the explanation how to use is_finished to achieve a non-blocking join. The updated version matches the documentation of the non-scoped JoinHandle::is_finished.
Co-authored-by: matthewjasper <20113453+matthewjasper@users.noreply.github.com>
Those libraries are build with `-C panic=unwind` and is expected to be linkable to `-C panic=abort` library. To ensure unsoundness compiler needs to prevent a `C-unwind` call to exist, as doing so may leak foreign exceptions into `-C panic=abort`.
…r=Mark-Simulacrum Add test cases for inlining compiler-private items Closes rust-lang#106421 This was already fixed by rust-lang#121218, but now the test cases are added.
…slice, r=Mark-Simulacrum Add examples for some methods on slices Adds some examples to some methods on slice. `is_empty` didn't have an example for an empty slice, even though `str` and the collections all have one, so I added that in. `first_mut` and `last_mut` didn't have an example for what happens when the slice is empty, whereas `first` and `last` do, so I added that too.
…wjasper match lowering: Split off `test_candidates` into several functions and improve comments The logic of `test_candidates` has three steps: pick a test, sort the candidates, and generate code for everything. So I split it off into three methods. I also ended up reworking the comments that explain the algorithm. In particular I added detailed examples. I removed the digression about rust-lang#29740 because it's no longer relevant to how the code is structured today. r? `@matthewjasper`
…on, r=Mark-Simulacrum Ignore compiletest test directive migration commits Not sure if the corresponding bors commit need to be included as well, assuming not.
…-obk promotion: don't promote int::MIN / -1 Looks like I entirely forgot about this case when adding the div-by-zero check, which was supposed to ensure that we never promote operations that can fail... Cc rust-lang#80619 This is a breaking change, so needs a crater run. r? `@oli-obk`
Fix incorrect doc of ScopedJoinHandle::is_finished Fixes the explanation how to use `is_finished` to achieve a non-blocking join. The updated version matches the documentation of the non-scoped JoinHandle::is_finished.
Forbid use of `extern "C-unwind"` inside standard library Those libraries are build with `-C panic=unwind` and is expected to be linkable to `-C panic=abort` library. To ensure unsoundness compiler needs to prevent a `C-unwind` call to exist, as doing so may leak foreign exceptions into `-C panic=abort`. r? `@RalfJung`
Use `addr_of!` As per rust-lang#121303 (comment)
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Successful merges:
test_candidatesinto several functions and improve comments #121374 (match lowering: Split offtest_candidatesinto several functions and improve comments)extern "C-unwind"inside standard library #121551 (Forbid use ofextern "C-unwind"inside standard library)addr_of!#121556 (Useaddr_of!)r? @ghost
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