17 lines
366 B
Rust
17 lines
366 B
Rust
enum Option<T> {
|
|
None,
|
|
Some(T),
|
|
}
|
|
|
|
fn main() {
|
|
match &mut Some(1) {
|
|
ref mut z @ &mut Some(ref a) => {
|
|
//~^ ERROR pattern bindings are not allowed after an `@`
|
|
//~| ERROR cannot borrow `_` as immutable because it is also borrowed as mutable
|
|
**z = None;
|
|
println!("{}", *a);
|
|
}
|
|
_ => ()
|
|
}
|
|
}
|