RUST

rust vec of generics types

trait Foo { }

pub struct A {}
pub struct B {}

impl Foo for A {}
impl Foo for B {}

type FooT = Box<dyn Foo>;

fn test() -> Vec<FooT> {
    let mut generic_vec: Vec<FooT> = Vec::new();
    generic_vec.push(Box::new(A {}));
    generic_vec.push(Box::new(B {}));
    return generic_vec;
}