Rust code shared from the playground

playground.rs

trait AsRecord {
    fn as_record(&self) -> String;
}

#[derive(Debug)]
struct MyRecord(u32);
impl AsRecord for MyRecord {
    fn as_record(&self) -> String {
        format!("hey, I've got {}", self.0)
    }
}

#[derive(Debug)]
struct Thing {
    items: Vec<MyRecord>,
}

impl IntoIterator for Thing {
    type Item = MyRecord;
    type IntoIter = ::std::vec::IntoIter<MyRecord>;

    fn into_iter(self) -> Self::IntoIter {
        self.items.into_iter()
    }
}

fn do_things<T>(input: T)
where
    T: IntoIterator,
    T::Item: AsRecord,
{
    for item in input {
        println!("{}", item.as_record())
    }
}

fn main() {
    let thing = Thing {
        items: vec![MyRecord(1), MyRecord(32)],
    };
    println!("{:?}", thing);
    do_things(thing);
}