public void NullableTypesPerformCorrectly()
{
Nullable <int> nullint = null;
Nullable <int> nonnullint = 42;
Nullable <int> zeroint = 0;
Assert.Equal(Option <int> .None(), nullint.ToOption());
Assert.Equal(nonnullint, nonnullint.Value.ToOption().GetValue(x => x));
Assert.Equal(zeroint, zeroint.Value.ToOption().GetValue(x => x));
}
public static Option <T> OrElse <T>(this Option <T> option, Nullable <T> alternative)
where T : struct
{
return(option.HasValue ? option : alternative.ToOption());
}
