rust generics gist

main.rs

trait SomeTrait {
    fn display_trait(&mut self) {
        println!("SomeTrait display_trait() !!!");
    }
}

trait AnotherTrait {
    fn show_trait(&mut self) {
        println!("Another trait show_trait() !!!");
    }
}

struct Test<T> {
    val: T,
}

impl<T> SomeTrait for Test<T> {}
impl<T> AnotherTrait for Test<T> {}

struct App<T>
where
    T: SomeTrait,
{
    var: Vec<T>,
}

fn main() {
    let test_obj = Test { val: 32 };
    let vec_of_obj = vec![test_obj];
    let mut app = App { var: vec_of_obj };
}