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beautiful-racket/beautiful-racket/br/demo/stacker3.rkt

24 lines
702 B
Racket

#lang br/quicklang
#:read-syntax stacker-read-syntax
#:#%module-begin stacker-module-begin
(define (stacker-read-syntax src-path in-port)
(strip-context
#`(module stacker3-mod br/demo/stacker3
#,@(port->list read in-port))))
(define-macro (stacker-module-begin STACK-ARG ...)
#'(#%module-begin
(display
(first
(foldl (λ(arg stack)
(if (number? arg)
(cons arg stack)
(cons (arg (car stack) (cadr stack)) (cddr stack))))
null (list STACK-ARG ...))))))
(provide + *)
(module+ test
(require rackunit)
(check-equal? (with-output-to-string (λ () (dynamic-require "stacker2-test.rkt" #f))) "36"))