struct Foo { string: ~str } pub fn main() { let x = [ Foo { string: ~"foo" }, Foo { string: ~"bar" }, Foo { string: ~"baz" } ]; match x { [first, ..tail] => { assert!(first.string == ~"foo"); assert!(tail.len() == 2); assert!(tail[0].string == ~"bar"); assert!(tail[1].string == ~"baz"); match tail { [Foo { _ }, _, Foo { _ }, ..tail] => { ::core::util::unreachable(); } [Foo { string: a }, Foo { string: b }] => { assert!(a == ~"bar"); assert!(b == ~"baz"); } _ => { ::core::util::unreachable(); } } } _ => { ::core::util::unreachable(); } } }