return_borrowed_struct.data.rs

struct Test {
    n: usize,
}

struct Test2<'a> {
    n_borrow: &'a usize,
}

impl Test {
    pub fn return_n(&self) -> Test2 {
        Test2::new(&self.n)
    }
}

impl<'a> Test2<'a> {
    pub fn new(n_ref: &usize) -> Test2 {
        Test2 {
            n_borrow: n_ref,
        }
    }

    pub fn return_n(&self) -> &usize {
        self.n_borrow
    }
}

fn main() {
    let t = Test{n: 10};

    println!("Print {:?}", t.return_n().return_n());
}