package simple_math_interpreter.ext

public interface OptionExt<T> {
    func okOr<E>(e: E): Result<T, E>
}

extend<T> Option<T> <: OptionExt<T> {
    public func okOr<E>(e: E): Result<T, E> {
        match (this) {
            case Some(v) => Ok(v)
            case None => Err(e)
        }
    }
}