shared/examples/data_example.rs

use shared::Data;

// A example borrowing some Data
fn something(d: &Data) {
    // Because Data implements Display (It also implements Debug {:?})
    println!("{}", d);
}

fn main() {
    // Let's make a primitive
    let my_uint: u32 = 42;
    // Now notice the simplicity of converting from
    let my_uint: Data = Data::from(my_uint);
    let my_int: Data = Data::from(1024_i64);
    let nothing: Data = Data::default(); // Want something empty?
    
    // Ok let's call something now
    something(&my_uint);
    something(&my_int);
    something(&nothing);

    // Directly? Sure!
    println!("uint={} int={}", my_uint, my_int);

    // Let's say we wanted to get it back out (by we know the original type)
    let uint: Result<u32, ()> = my_uint.clone().try_into();
    if let Ok(u) = uint {
        println!("{:?}", u); // Yay, it is a u32
    } else {
        println!("{:?}", my_uint); // We had to clone it above so we can print it down here :)
    }
    // However, the above would fail if we try_into a different type (even something like u64 or u128 will "fail", despite the underlying being a u32)
    // Don't want this? Use the `cast_into` feature (Then the u32 or lower will be casted to u64 or u128, but it only works lower bits to higher bits)

    // We can get a general idea of what the type is, even a loose type like JSON's Number (which could be float or integer or even unsigned integer)
    if my_int.is_number() {
        println!("{} is a number", my_int);
    }

    // Data also supports being used in collections such as Vec<Data> and HashMap<String, Data>  (Note: HashMap will require String and Data, if the key is a number it's better to use a Vec)
    // See collection_data_example.rs
}