I would like a trait X to implement the Display trait so that it’s available for all structs that implement X.

How can I do ?
Thanks !

I tried this but got an error (in main()) :

use std::fmt;

pub trait MyTrait {
    fn get_value(&self) -> i32;
}

impl fmt::Display for dyn MyTrait {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", self.get_value())
    }
}

pub struct MyStruct {
    value: i32,
}

impl MyTrait for MyStruct {
    fn get_value(&self) -> i32 {
        self.value
    }
}

fn main() {
    let my_struct = MyStruct { value: 42 };
    println!("{}", my_struct); // `MyStruct` cannot be formatted with the default formatter
}