Idiomatic way of treating Option[Boolean]

Question

In my Scala program, I am receiving some JSON.

One of the fields is an optional Boolean. If the field is missing, or if its value is false, I would like to return None. If its value is true, I would like to return Some(true).

SInce this is equivalent to converting Some(false) into None, I have defined the following function:

def boolmap(ob: Option[Boolean]) = if(ob == Some(false)) None else ob

It works, but it doesn't seem to be very idiomatic. Is there anything more elegant?

Answer 1

This is ob.filter(identity). I'm not sure whether that's clearer, but it's shorter.