rust/tests/ui/traits/generic-trait-impl-aliased-array-58212.rs

// https://github.com/rust-lang/rust/issues/58212
//@ check-pass

trait FromUnchecked {
    fn from_unchecked();
}

impl FromUnchecked for [u8; 1] {
    fn from_unchecked() {
        let mut array: Self = [0; 1];
        let _ptr = &mut array as *mut [u8] as *mut u8;
    }
}

fn main() {
}
Add test batch 3 2025-08-20 14:02:50 -04:00			`// https://github.com/rust-lang/rust/issues/58212`
Remove mem::uninitalized from tests This purges uses of uninitialized where possible from test cases. Some are merely moved over to the equally bad pattern of MaybeUninit::uninit().assume_init() but with an annotation that this is "the best we can do". 2019-12-21 21:43:13 -05:00			`//@ check-pass`
tests: Add missing run-pass annotations 2019-07-27 00:54:25 +03:00
Normalize the type Self resolves to in an impl This is required at the very least in order to evaluate associated constants for arrays (see #58212). 2019-02-26 16:48:12 +01:00			`trait FromUnchecked {`
Remove mem::uninitalized from tests This purges uses of uninitialized where possible from test cases. Some are merely moved over to the equally bad pattern of MaybeUninit::uninit().assume_init() but with an annotation that this is "the best we can do". 2019-12-21 21:43:13 -05:00			`fn from_unchecked();`
Normalize the type Self resolves to in an impl This is required at the very least in order to evaluate associated constants for arrays (see #58212). 2019-02-26 16:48:12 +01:00			`}`

			`impl FromUnchecked for [u8; 1] {`
Remove mem::uninitalized from tests This purges uses of uninitialized where possible from test cases. Some are merely moved over to the equally bad pattern of MaybeUninit::uninit().assume_init() but with an annotation that this is "the best we can do". 2019-12-21 21:43:13 -05:00			`fn from_unchecked() {`
			`let mut array: Self = [0; 1];`
Normalize the type Self resolves to in an impl This is required at the very least in order to evaluate associated constants for arrays (see #58212). 2019-02-26 16:48:12 +01:00			`let _ptr = &mut array as mut [u8] as mut u8;`
			`}`
			`}`

			`fn main() {`
			`}`