lispuby.rb.lisp

#; named lambda klass
#; in an environment with counter set to 0
#; define an anonymous lambda which increases the counter by one
#
# (defun klass ()
#   (let ((counter 0))
#     (lambda () (incf counter))))

;klass = lambda {
;  counter = 0
;  lambda { counter += 1 }
;}
;
;object = klass[]
;puts object[] # => 1
;puts object[] # => 2