generic_with_concrete_impl.rs

use std::fmt::{Debug, Formatter};

pub struct MyStruct<T> {
  pub value: T,
}

impl<T> MyStruct<T> {
  fn new(v: T) -> Self {
    MyStruct { value: v }
  }
}

impl Debug for MyStruct<u32> {
  fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
    write!(f, "{:?}\n", self.value)
  }
}

impl Debug for MyStruct<&str> {
  fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
    write!(f, "{:?}\n", self.value)
  }
}

fn main() {
  let m = MyStruct::new(1);
  let n = MyStruct::new("etst");
  print!("{:?}", n);
}