(define (procedure1) (define exit-procs '()) (define-syntax defer (syntax-rules () ((defer (proc)) (set! exit-procs (cons (cons proc '()) exit-procs))) ((defer (proc arg ...)) (let ((evaluated-args (list arg ...))) (set! exit-procs (cons (cons proc evaluated-args) exit-procs)))))) (dynamic-wind (lambda () #f) (lambda () (defer (display "Goodbye, world!\n")) (display "Hello, world!\n")) (lambda () (display "Leaving procedure1.\n") (let loop ((p exit-procs)) (cond ((pair? p) (let ((proc-and-args (car p)) (rest (cdr p))) (let ((proc (car proc-and-args)) (args (cdr proc-and-args))) (apply proc args) (loop rest))))))))) (procedure1)