[Pharo-dev] Null Coalesce Operator?

Hi, Null coalesce operator - returns the first not nil operand. http://en.wikipedia.org/wiki/Null_coalescing_operator Adding one simple method to an Object: ?? anObject

^ self

and to UndefinedObject: ?? anObject

^ anObject

could allow us to write:

default1 := nil. default2 := nil. default3 := 'foo'. default4 := 'don''t care'. config := default1 ?? default2 ?? default3 ?? default4.

=> 'foo' I know you don't like to add new methods to an object, but still :)