| fn call_it<F>(f: F) where F: Fn() { f(); } | |
| struct A; | |
| impl A { | |
| fn gen(&self) {} | |
| fn gen_mut(&mut self) {} | |
| } | |
| fn main() { | |
| let mut x = A; | |
| call_it(|| { | |
| call_it(|| x.gen()); | |
| call_it(|| x.gen_mut()); | |
| //~^ ERROR cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure | |
| //~| ERROR cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure | |
| }); | |
| } |