struct Foo { string: ~str } 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(); } } }