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