//@ run-pass #![allow(non_camel_case_types)] enum clam { a(T, isize), b, } fn uhoh(v: Vec> ) { match v[1] { clam::a::(ref _t, ref u) => { println!("incorrect"); println!("{}", u); panic!(); } clam::b:: => { println!("correct"); } } } pub fn main() { let v: Vec> = vec![clam::b::, clam::b::, clam::a::(42, 17)]; uhoh::(v); }