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sugar/debug.rkt

25 lines
625 B
Racket

#lang racket/base
(require (for-syntax racket/base racket/syntax))
(provide report report*)
(define-syntax (report stx)
(syntax-case stx ()
[(_ expr) #'(report expr expr)]
[(_ expr name)
#'(begin
(displayln (format "~a = ~v" 'name expr) (current-error-port))
expr)]))
(define-syntax (report* stx)
(syntax-case stx ()
[(_ expr ...) (datum->syntax stx `(begin ,@(map (λ(arg) `(report ,arg)) (syntax->datum #'(expr ...)))))]))
(define-syntax-rule (repeat num expr)
(for/last ([i (in-range num)])
expr))
(define-syntax-rule (time-repeat num expr)
(time (repeat num expr)))