add time-repeat, time-repeat*

pull/2/head
Matthew Butterick 10 years ago
parent 09f5210bc0
commit 966563a968

@ -17,9 +17,17 @@
[(_ expr ...) (datum->syntax stx `(begin ,@(map (λ(arg) `(report ,arg)) (syntax->datum #'(expr ...)))))])) [(_ expr ...) (datum->syntax stx `(begin ,@(map (λ(arg) `(report ,arg)) (syntax->datum #'(expr ...)))))]))
(define-syntax-rule (repeat num expr) (define-syntax-rule (repeat num expr ...)
(for/last ([i (in-range num)]) (for/last ([i (in-range num)])
expr)) expr ...))
(define-syntax-rule (time-repeat num expr)
(time (repeat num expr))) (define-syntax-rule (time-repeat num expr ...)
(time (repeat num expr ...)))
(define-syntax (time-repeat* stx)
(syntax-case stx ()
[(_ num expr ...)
(let ([num (syntax->datum #'num)])
(datum->syntax stx `(values ,@(map (λ(arg) `(time-repeat ,num ,arg)) (syntax->datum #'(expr ...))))))]))

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