> How would you write the following method in Scheme (assuming that > there is something like a #at:ifAbsent: in Scheme)? > > Object>>foo > bar := zork at: 1 ifAbsent: [ ^ 2 ]. > self andNowForSomethingCompletelyDifferent: bar.
Either use a continution (call/cc), or check whether 1 is in zork, or check if looking for 1 return nil. But basically, it is likely that you will have one function for the the lookup, and another that does the andNowForSomethingCompletelyDifferent:. Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
