#lang plai/mutator (allocator-setup "../good-collectors/good-collector.rkt" 60) (define lst '(2 -10)) ; (cons 2 (cons -10 empty))) (define (map f lst) (if (cons? lst) (cons (f (first lst)) (map f (rest lst))) empty)) (define x 'gc-garbage) (test/value=? (map add1 lst) '(3 -9))