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#[derive(Debug)]
enum Foo {
Done,
Nested(Option<&'static Foo>),
}
fn walk(mut value: &Foo) {
loop {
println!("{:?}", value);
&Foo::Nested(Some(value)) = value else { break }; //~ ERROR invalid left-hand side of assignment
//~^ERROR <assignment> ... else { ... } is not allowed
}
}
fn main() {
walk(&Foo::Done);
}
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