How is Smalltalk's whileTrue message implemented behind the scenes?
I am trying to teach myself Smalltalk. A tutorial has this example of a while loop: |i| i:=5. [i >0] whileTrue:[ Transcript show: ((i*2) asString) ; cr. i:=i-1. ]. As I understand it, whileTrue is a message sent to a BlockClosure, telling the receiving BlockClosure to run the BlockClosure given as the argument as long as the re...