src/test/ui/let-else/let-else-destructuring.rs

   1 #[derive(Debug)]
   2 enum Foo {
   3     Done,
   4     Nested(Option<&'static Foo>),
   5 }
   6
   7 fn walk(mut value: &Foo) {
   8     loop {
   9         println!("{:?}", value);
  10         &Foo::Nested(Some(value)) = value else { break }; //~ ERROR invalid left-hand side of assignment
  11         //~^ERROR <assignment> ... else { ... } is not allowed
  12     }
  13 }
  14
  15 fn main() {
  16     walk(&Foo::Done);
  17 }