Rollup of 8 pull requests #80939
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Rollup of 8 pull requests #80939
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This replaces tabs earlier in the diagnostics emitting process, which allows various margin calculations to ignore the existence of tabs. It does add a string copy for the source lines that are emitted.
There's no need to scope the borrow in the doc example due to NLL. Playground link where changed code compiles https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&code=fn%20main()%20%7B%0A%20%20%20%20let%20mut%20v%20%3D%20%5B1%2C%200%2C%203%2C%200%2C%205%2C%206%5D%3B%0A%0A%20%20%20%20let%20(left%2C%20right)%20%3D%20v.split_at_mut(2)%3B%0A%20%20%20%20assert_eq!(left%2C%20%5B1%2C%200%5D)%3B%0A%20%20%20%20assert_eq!(right%2C%20%5B3%2C%200%2C%205%2C%206%5D)%3B%0A%20%20%20%20left%5B1%5D%20%3D%202%3B%0A%20%20%20%20right%5B1%5D%20%3D%204%3B%0A%0A%20%20%20%20assert_eq!(v%2C%20%5B1%2C%202%2C%203%2C%204%2C%205%2C%206%5D)%3B%0A%7D%0A
Rationale: - `atty` is widely used in the Rust ecosystem - We already use it (in `rustc_errors` and other places) - We shouldn't be rolling our own TTY detector when there's a widely-used, well-tested package that we can use
…-expand, r=estebank Replace tabs earlier in diagnostics This replaces tabs earlier in the diagnostics emitting process, which allows various margin calculations to ignore the existence of tabs. It does add a string copy for the source lines that are emitted. Fixes rust-lang#78438 r? `@estebank`
…me_init, r=dtolnay Add `MaybeUninit` method `array_assume_init` When initialising an array element-by-element, the conversion to the initialised array is done through `mem::transmute`, which is both ugly and does not work with const generics (see rust-lang#61956). This PR proposes the associated method `array_assume_init`, matching the style of `slice_assume_init_*`: ```rust unsafe fn array_assume_init<T, const N: usize>(array: [MaybeUninit<T>; N]) -> [T; N]; ``` Example: ```rust let mut array: [MaybeUninit<i32>; 3] = MaybeUninit::uninit_array(); array[0].write(0); array[1].write(1); array[2].write(2); // SAFETY: Now safe as we initialised all elements let array: [i32; 3] = unsafe { MaybeUninit::array_assume_init(array) }; ``` Things I'm unsure about: * Should this be a method of array instead? * Should the function be const?
…chenkov Move some tests to more reasonable directories The idea is to move `issues`/`ui` tests in small batches r? `@petrochenkov`
driver: Use `atty` instead of rolling our own Fixes rust-lang#80888. Rationale: - `atty` is widely used in the Rust ecosystem - We already use it (in `rustc_errors` and other places) - We shouldn't be rolling our own TTY detector when there's a widely-used, well-tested package that we can use
…lcnr Add another test case for rust-lang#79808 Taken from rust-lang#80293. Closes rust-lang#80293 r? `@lcnr`
core/slice: remove doc comment about scoped borrow There's no need to scope the borrow in the doc example due to NLL. [Playground link](https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&code=fn%20main()%20%7B%0A%20%20%20%20let%20mut%20v%20%3D%20%5B1%2C%200%2C%203%2C%200%2C%205%2C%206%5D%3B%0A%0A%20%20%20%20let%20(left%2C%20right)%20%3D%20v.split_at_mut(2)%3B%0A%20%20%20%20assert_eq!(left%2C%20%5B1%2C%200%5D)%3B%0A%20%20%20%20assert_eq!(right%2C%20%5B3%2C%200%2C%205%2C%206%5D)%3B%0A%20%20%20%20left%5B1%5D%20%3D%202%3B%0A%20%20%20%20right%5B1%5D%20%3D%204%3B%0A%0A%20%20%20%20assert_eq!(v%2C%20%5B1%2C%202%2C%203%2C%204%2C%205%2C%206%5D)%3B%0A%7D%0A) where changed code compiles
Replace a simple `if let` with the `matches` macro `@rustbot` modify labels +C-cleanup +T-compiler
…, r=estebank fix typo in trait method mutability mismatch help
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@bors r+ rollup=never p=8 |
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📌 Commit 139daf5 has been approved by |
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☀️ Test successful - checks-actions |
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Successful merges:
MaybeUninitmethodarray_assume_init#80600 (AddMaybeUninitmethodarray_assume_init)attyinstead of rolling our own #80897 (driver: Useattyinstead of rolling our own)if letwith thematchesmacro #80927 (Replace a simpleif letwith thematchesmacro)Failed merges:
r? @ghost
@rustbot modify labels: rollup
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