Zero-Cost Generics

1import std.io;
2
3// Generic container class
4class Box<T> {
5    private T item;
6    
7    public Box(T item) {
8        this.item = item;
9    }
10    
11    public fn get() -> T {
12        return this.item;
13    }
14}
15
16// Generic standalone function
17fn identity<T>(T val) -> T {
18    return val;
19}
20
21fn main() -> void {
22    Box<int> intBox = new Box<int>(42);
23    Box<string> strBox = new Box<string>("SP Language");
24    
25    println("IntBox item: ${intBox.get()}");
26    println("StrBox item: ${strBox.get()}");
27    
28    let echoed = identity<double>(3.14159);
29    println("Echoed: ${echoed}");
30}