rust/src/test/compile-fail/regions-glb-free-free.rs

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mod argparse {
use std;
use either::{Either, Left, Right};
struct Flag {
name: &str,
desc: &str,
max_count: uint,
mut value: uint
}
fn flag(name: &r/str, desc: &r/str) -> Flag/&r {
Flag { name: name, desc: desc, max_count: 1, value: 0 }
}
impl Flag {
fn set_desc(self, s: &str) -> Flag {
Flag { //~ ERROR cannot infer an appropriate lifetime
name: self.name,
desc: s,
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 updated_flag.desc == "My new flag";
}