// 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. trait Foo { fn borrowed(&self); fn borrowed_mut(&mut self); } fn borrowed_receiver(x: &Foo) { x.borrowed(); x.borrowed_mut(); //~ ERROR cannot borrow } fn borrowed_mut_receiver(x: &mut Foo) { x.borrowed(); x.borrowed_mut(); } fn owned_receiver(x: Box) { x.borrowed(); x.borrowed_mut(); //~ ERROR cannot borrow } fn mut_owned_receiver(mut x: Box) { x.borrowed(); x.borrowed_mut(); } fn main() {}