use std::str::FromStr;

#[derive(Debug)]
struct Test<'s> {
    value: &'s str,
}

impl<'s> Test<'s> {
    fn new(val: &'s str) -> Self {
        Test {
            value: val,
        }
    }
}

impl<'s> FromStr for Test<'s> {
    type Err = ();

    fn from_str<'t: 's>(t: &'t str) -> Result<Self, Self::Err> {
        Ok(Test {
            value: t,
        })
    }
}

fn main() {
    let t1 = Test::new("test 1");
    let t2 = Test::from_str("test 2");

    println!("Test 1 = {:?}", &t1);
    println!("Test 2 = {:?}", &t2);
}