rust-clippy/tests/ui/uninit.rs
2020-04-02 18:31:31 -07:00

22 lines
881 B
Rust

#![feature(stmt_expr_attributes)]
use std::mem::MaybeUninit;
fn main() {
let _: usize = unsafe { MaybeUninit::uninit().assume_init() };
// edge case: For now we lint on empty arrays
let _: [u8; 0] = unsafe { MaybeUninit::uninit().assume_init() };
// edge case: For now we accept unit tuples
let _: () = unsafe { MaybeUninit::uninit().assume_init() };
// This is OK, because `MaybeUninit` allows uninitialized data.
let _: MaybeUninit<usize> = unsafe { MaybeUninit::uninit().assume_init() };
// This is OK, because all constitutent types are uninit-compatible.
let _: (MaybeUninit<usize>, MaybeUninit<bool>) = unsafe { MaybeUninit::uninit().assume_init() };
// This is OK, because all constitutent types are uninit-compatible.
let _: (MaybeUninit<usize>, [MaybeUninit<bool>; 2]) = unsafe { MaybeUninit::uninit().assume_init() };
}