// Copyright 2012 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. struct X { x: (), } impl Drop for X { fn finalize(&self) { error!("destructor runs"); } } fn main() { let x = Some(X { x: () }); match x { Some(_y @ ref _z) => { }, //~ ERROR cannot bind by-move with sub-bindings None => fail!() } }