// 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. // A test case for #2548. struct foo { x: @mut int, } impl Drop for foo { fn finalize(&self) { io::println("Goodbye, World!"); *self.x += 1; } } fn foo(x: @mut int) -> foo { foo { x: x } } fn main() { let x = @mut 0; { let mut res = foo(x); let mut v = ~[]; v = ~[(res)] + v; //~ instantiating a type parameter with an incompatible type `foo`, which does not fulfill `Copy` assert (v.len() == 2); } assert *x == 1; }