Generics

Generic classes are parameterized by type, allowing you to write reusable code that works with different types.

Basic Generic Class

class Box<T> {
  var value: T;

  function init(v: T) {
    this.value = v;
  }

  function get() T {
    return this.value;
  }
}

function main() i32 {
    var intBox = Box<i32>(42);
    var floatBox = Box<f64>(3.14);
    return intBox.get();  // 42
}

Type Parameters

Type parameters are specified in angle brackets after the class name. When instantiating a generic class, you must provide concrete types:

var intBox = Box<i32>(42);      // T = i32
var floatBox = Box<f64>(3.14);  // T = f64

Generic classes are monomorphized at compile time, meaning a separate version is generated for each type combination used.

Interfaces Error Handling