It is also worth mentioning that there is now also the Cons library available through the Pharo6 catalog browser. Cons is a lazy linked list that can be used like a normal linked list, but can also be used as an iterator over streams or infinite-sequence-generating blocks, using the usual Pharo collections API.
myStream := (1 to: 100) readStream. (myStream asCons take: 5) do: [ ... ]. Due to the laziness, Cons, like Clojure's transducers, doesn't build intermediate representations, so things like #selectThenCollect: aren't necessary. (myList select: sBlock) collect: cBlock just creates an iterator and never actually creates the whole list, although you can still treat it like a list with #first, #allButRest, etc. The code is stable and in use in several of my projects. Evan -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html
