| //revisions: ast mir | |
| //[mir] compile-flags: -Z borrowck=mir | |
| #![allow(unused_assignments)] | |
| struct Wrap<'a> { w: &'a mut u32 } | |
| fn foo() { | |
| let mut x = 22; | |
| let wrapper = Wrap { w: &mut x }; | |
| x += 1; //[ast]~ ERROR cannot assign to `x` because it is borrowed [E0506] | |
| //[mir]~^ ERROR cannot use `x` because it was mutably borrowed [E0503] | |
| *wrapper.w += 1; | |
| } | |
| fn main() { } |