rust/src/test/run-pass/regions-trait.rs

35 lines
876 B
Rust

// 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
struct Ctxt { v: uint }
trait get_ctxt {
fn get_ctxt(&self) -> &'self Ctxt;
}
struct HasCtxt { c: &'self Ctxt }
impl get_ctxt for HasCtxt<'self> {
fn get_ctxt(&self) -> &'self Ctxt {
self.c
}
}
fn get_v(gc: @get_ctxt) -> uint {
gc.get_ctxt().v
}
pub fn main() {
let ctxt = Ctxt { v: 22 };
let hc = HasCtxt { c: &ctxt };
fail_unless!(get_v(@hc as @get_ctxt) == 22);
}