// Copyright 2016 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 Irrefutable(i32); fn main() { let irr = Irrefutable(0); if let Irrefutable(x) = irr { //~ ERROR E0162 //~| NOTE irrefutable pattern println!("{}", x); } }