rust/tests/ui/did_you_mean/issue-39544.rs

51 lines
1.0 KiB
Rust

pub enum X {
Y
}
pub struct Z {
x: X
}
fn main() {
let z = Z { x: X::Y };
let _ = &mut z.x; //~ ERROR cannot borrow
}
impl Z {
fn foo<'z>(&'z self) {
let _ = &mut self.x; //~ ERROR cannot borrow
}
fn foo1(&self, other: &Z) {
let _ = &mut self.x; //~ ERROR cannot borrow
let _ = &mut other.x; //~ ERROR cannot borrow
}
fn foo2<'a>(&'a self, other: &Z) {
let _ = &mut self.x; //~ ERROR cannot borrow
let _ = &mut other.x; //~ ERROR cannot borrow
}
fn foo3<'a>(self: &'a Self, other: &Z) {
let _ = &mut self.x; //~ ERROR cannot borrow
let _ = &mut other.x; //~ ERROR cannot borrow
}
fn foo4(other: &Z) {
let _ = &mut other.x; //~ ERROR cannot borrow
}
}
pub fn with_arg(z: Z, w: &Z) {
let _ = &mut z.x; //~ ERROR cannot borrow
let _ = &mut w.x; //~ ERROR cannot borrow
}
pub fn with_tuple() {
let mut y = 0;
let x = (&y,);
*x.0 = 1;
//~^ ERROR cannot assign to `*x.0`, which is behind a `&` reference
}