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// 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.
mod argparse {
pub struct Flag<'a> {
name: &'a str,
desc: &'a str,
max_count: usize,
value: usize
}
pub fn flag<'r>(name: &'r str, desc: &'r str) -> Flag<'r> {
Flag { name: name, desc: desc, max_count: 1, value: 0 }
}
impl<'a> Flag<'a> {
pub fn set_desc(self, s: &str) -> Flag<'a> {
Flag {
name: self.name,
desc: s, //~ ERROR cannot infer an appropriate lifetime for automatic coercion due t
max_count: self.max_count,
value: self.value
}
}
}
}
fn main () {
let f : argparse::Flag = argparse::flag("flag", "My flag");
let updated_flag = f.set_desc("My new flag");
assert_eq!(updated_flag.desc, "My new flag");
}
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