Tom HawtinThomas Hawtin's WeblogUser definable synchronous control structures without closures- February 1, 2008 User definable control structures do not require closures. This is not to say that encouraging dialects is necessarily desirable (I don't think it is), but merely possible and possibly better without closures. Closures introduce some surprising semantics which we could do without. This unproposal is just for control structures - threads and listeners are right out. People of a web persuasion may find this somewhat familiar. Here follows an example of one way to achieve control structures...http://www.jroller.com/tackline/entry/user_definable_synchronous_control_structures |