1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 struct Cursor<'a>(::std::marker::PhantomData<&'a ()>);
13 trait CursorNavigator {
14 fn init_cursor<'a, 'b:'a>(&'a self, cursor: &mut Cursor<'b>) -> bool;
17 struct SimpleNavigator;
19 impl CursorNavigator for SimpleNavigator {
20 fn init_cursor<'a, 'b: 'a>(&'a self, _cursor: &mut Cursor<'b>) -> bool {
26 let mut c = Cursor(::std::marker::PhantomData);
27 let n = SimpleNavigator;
28 n.init_cursor(&mut c);