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27 lines
781 B
Racket
27 lines
781 B
Racket
#lang racket/base
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(require (for-syntax racket/base racket/syntax))
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(provide (all-defined-out))
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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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#'(let ([expr-result EXPR])
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(eprintf "~a = ~v\n" 'NAME expr-result)
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expr-result)]))
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(define-syntax (report-datum stx)
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(syntax-case stx ()
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[(_ STX-EXPR)
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(with-syntax ([datum (syntax->datum #'STX-EXPR)])
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#'(report-datum STX-EXPR datum))]
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[(_ STX-EXPR NAME)
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#'(let ()
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(eprintf "~a = ~v\n" 'NAME (syntax->datum STX-EXPR))
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STX-EXPR)]))
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(define-syntax-rule (define-multi-version MULTI-NAME NAME)
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(define-syntax-rule (MULTI-NAME x (... ...))
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(begin (NAME x) (... ...))))
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(define-multi-version report* report) |