You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
beautiful-racket/beautiful-racket-lib/br/debug.rkt

17 lines
487 B
Racket

9 years ago
#lang racket/base
(require (for-syntax racket/base racket/syntax))
(provide (all-defined-out))
(define-syntax (report stx)
(syntax-case stx ()
[(_ expr) #'(report expr expr)]
[(_ expr name)
#'(let ([expr-result expr])
(eprintf "~a = ~v\n" 'name expr-result)
expr-result)]))
(define-syntax-rule (define-multi-version multi-name name)
(define-syntax-rule (multi-name x (... ...))
(begin (name x) (... ...))))
(define-multi-version report* report)