// Copyright 2012-2014 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. #![allow(unused_variable)] #![allow(dead_assignment)] fn separate_arms() { // Here both arms perform assignments, but only is illegal. let mut x = None; match x { None => { // It is ok to reassign x here, because there is in // fact no outstanding loan of x! x = Some(0i); } Some(ref _i) => { x = Some(1i); //~ ERROR cannot assign } } x.clone(); // just to prevent liveness warnings } fn main() {}