sirh3e/Rust

namespace Sirh3e.Rust.Option;

public partial struct Option<TSome>
{
    /// <summary>
    /// Maps an Option&lt;TSome&gt; to Option&lt;T&gt; by applying a function to a contained value.
    /// </summary>
    /// <param name="map"></param>
    /// <typeparam name="T"></typeparam>
    /// <returns></returns>
    public Option<T> Map<T>(Func<TSome, T> map)
        => Match(
                 some => Option<T>.Some(map(some) ?? throw new ArgumentNullException(nameof(map))),
                 () => Option<T>.None
                );
}