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// run-pass
#![allow(dead_code)]
trait IDummy {
fn do_nothing(&self);
}
#[derive(Debug)]
struct A { a: isize }
#[derive(Debug)]
struct B<'a> { b: isize, pa: &'a A }
impl IDummy for A {
fn do_nothing(&self) {
println!("A::do_nothing() is called");
}
}
impl<'a> B<'a> {
fn get_pa(&self) -> &'a dyn IDummy { self.pa as &'a dyn IDummy }
}
pub fn main() {
let sa = A { a: 100 };
let sb = B { b: 200, pa: &sa };
println!("sa is {:?}", sa);
println!("sb is {:?}", sb);
}
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