// 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 cat { priv mut meows : uint, how_hungry : int, } pub impl cat { fn speak(&self) { self.meows += 1u; } } fn cat(in_x : uint, in_y : int) -> cat { cat { meows: in_x, how_hungry: in_y } } fn main() { let nyan : cat = cat(52u, 99); nyan.speak = || debug!("meow"); //~ ERROR attempted to take value of method }