rust/tests/ui/borrowck/issue-85765.rs
2023-01-11 09:32:08 +00:00

30 lines
1.1 KiB
Rust

fn main() {
let mut test = Vec::new();
let rofl: &Vec<Vec<i32>> = &mut test;
//~^ NOTE consider changing this binding's type to be
rofl.push(Vec::new());
//~^ ERROR cannot borrow `*rofl` as mutable, as it is behind a `&` reference
//~| NOTE `rofl` is a `&` reference, so the data it refers to cannot be borrowed as mutable
let mut mutvar = 42;
let r = &mutvar;
//~^ HELP consider changing this to be a mutable reference
*r = 0;
//~^ ERROR cannot assign to `*r`, which is behind a `&` reference
//~| NOTE `r` is a `&` reference, so the data it refers to cannot be written
#[rustfmt::skip]
let x: &usize = &mut{0};
//~^ NOTE consider changing this binding's type to be
*x = 1;
//~^ ERROR cannot assign to `*x`, which is behind a `&` reference
//~| NOTE `x` is a `&` reference, so the data it refers to cannot be written
#[rustfmt::skip]
let y: &usize = &mut(0);
//~^ NOTE consider changing this binding's type to be
*y = 1;
//~^ ERROR cannot assign to `*y`, which is behind a `&` reference
//~| NOTE `y` is a `&` reference, so the data it refers to cannot be written
}