Rollup of 6 pull requests #97574
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Rollup of 6 pull requests #97574
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This transforms `|| expr` into `|| { expr; }`.
Currently, `Box<T>` gets `noalias`, meaning it has the same rules as `&mut T`. This is sparsely documented, even though it can have quite a big impact on unsafe code using box. Therefore, these rules are documented here, with a big warning that they are not normative and subject to change, since we have not yet committed to an aliasing model and the state of `Box<T>` is especially uncertain.
…`suggest_missing_semicolon()`
…me-display, r=jsha Improve settings theme display This is a follow-up of rust-lang#96958. In this PR, I changed how the theme radio buttons are displayed and improved their look as well. It now looks like this:   You can test it [here](https://rustdoc.crud.net/imperio/improve-settings-theme-display/doc/foo/index.html). r? `@jsha`
Document the current aliasing rules for `Box<T>`. Currently, `Box<T>` gets `noalias`, meaning it has the same rules as `&mut T`. This is sparsely documented, even though it can have quite a big impact on unsafe code using box. Therefore, these rules are documented here, with a big warning that they are not normative and subject to change, since we have not yet committed to an aliasing model and the state of `Box<T>` is especially uncertain. If you have any suggestions and improvements, make sure to leave them here. This is mostly intended to inform people about what is currently going on (to prevent misunderstandings such as [Jon Gjengset's Box aliasing](https://www.youtube.com/watch?v=EY7Wi9fV5bk)). This is supposed to _only document current UB_ and not add any new guarantees or rules.
…dd-semicolon, r=oli-obk
Suggest adding a semicolon to a closure without block
This transforms `|| expr` into `|| { expr; }`.
Closes rust-lang#97359.
…nto, r=dtolnay Stabilize `toowned_clone_into` Closes rust-lang#41263 FCP has been done: rust-lang#41263 (comment)
Add doc alias `memset` to `write_bytes` I were looking for `memset` in rust, but the docs only pointed me to `slice::fill`. With only the old aliases, one might write code like this, which is incorrect if the memory is uninitialized. ``` Rust core::slice::from_raw_parts(ptr, len).fill(0) ```
…nieu Remove `memset` alias from `fill_with`. In https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/Unsafe.20and.20Safe.20versions.20of.20APIs.20both.20getting.20the.20same.20alias/near/284413029 `@Amanieu` pointed out that we had this, which is not really right. In our guidelines we say that we will "not add an alias for a function that's only somewhat similar or related", which applies here. Memset doesn't take a closure, not even conceptually.
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@bors r+ rollup=never p=5 |
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📌 Commit efd2519 has been approved by |
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☀️ Test successful - checks-actions |
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Finished benchmarking commit (d35d972): comparison url. Instruction count
Max RSS (memory usage)Results
CyclesThis benchmark run did not return any relevant results for this metric. If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf. @rustbot label: -perf-regression Footnotes |
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Successful merges:
Box<T>. #97229 (Document the current aliasing rules forBox<T>.)toowned_clone_into#97455 (Stabilizetoowned_clone_into)memsettowrite_bytes#97565 (Add doc aliasmemsettowrite_bytes)memsetalias fromfill_with. #97569 (Removememsetalias fromfill_with.)Failed merges:
r? @ghost
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