property.rs

pub struct Property<T> {
    priv val: T
}

impl<T> Property<T> {
    fn new(new_val: T) -> Property<T> {
        Property {
            val: new_val
        }
    }

    fn get<'a>(&'a self) -> &'a T {
        &self.val
    }

    fn get_mut<'a>(&'a mut self) -> &'a mut T {
        &mut self.val
    }

    fn set(&mut self, new_val: T) {
        self.val = new_val
    }

}

fn main() {
    let mut prop = Property::new(42);
    println!("{:?}", prop.get())
    prop.set(256);
    println!("{:?}", prop.get())
    *prop.get_mut() *= 4;
    println!("{:?}", prop.get())
}