3 ms·

closures ?

• collyw 10y ago
  I am pretty sure there was a Perl book that referred to closures as inside out objects.
  • mcguire 10y ago
    That would be a little odd, considering closures are about as objecty as you can get. https://www.cs.utexas.edu/users/wcook/papers/OOPvsADT/CookOOPvsADT90.pdf https://www.cs.utexas.edu/users/wcook/papers/OOPvsADT/CookOO...
    • mpweiher 10y ago
      The venerable master Qc Na was walking with his student, Anton. Hoping to prompt the master into a discussion, Anton said "Master, I have heard that objects are a very good thing - is this true?" Qc Na looked pityingly at his student and replied, "Foolish pupil - objects are merely a poor man's closures." Chastised, Anton took his leave from his master and returned to his cell, intent on studying closures. He carefully read the entire "Lambda: The Ultimate..." series of papers and its cousins, and implemented a small Scheme interpreter with a closure-based object system. He learned much, and looked forward to informing his master of his progress. On his next walk with Qc Na, Anton attempted to impress his master by saying "Master, I have diligently studied the matter, and now understand that objects are truly a poor man's closures." Qc Na responded by hitting Anton with his stick, saying "When will you learn? Closures are a poor man's object." At that moment, Anton became enlightened. http://c2.com/cgi/wiki?ClosuresAndObjectsAreEquivalent http://c2.com/cgi/wiki?ClosuresAndObjectsAreEquivalent Oh, and of course: COLA (Combined Object Lambda Architecture): http://lambda-the-ultimate.org/node/2483 http://lambda-the-ultimate.org/node/2483
  • dozzie 10y ago
    Actually, no. It was about constructing objects "inside out" (data untouchable from the outside) using closures. This is an accomplishment in a language where object system has data totally open and accessible to anyone.