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beautiful-racket/beautiful-racket-lib/br/debug.rkt

26 lines
719 B
Racket

#lang racket/base
(require (for-syntax racket/base br/syntax)
br/define)
(provide (all-defined-out))
(define-macro-cases report
[(_ EXPR) #'(report EXPR EXPR)]
[(_ EXPR NAME)
#'(let ([expr-result EXPR])
(eprintf "~a = ~v\n" 'NAME expr-result)
expr-result)])
(define-macro-cases report-datum
[(_ STX-EXPR)
(with-pattern ([datum (syntax->datum #'STX-EXPR)])
#'(report-datum STX-EXPR datum))]
[(_ STX-EXPR NAME)
#'(let ()
(eprintf "~a = ~v\n" 'NAME (syntax->datum STX-EXPR))
STX-EXPR)])
(define-macro (define-multi-version MULTI-NAME NAME)
#'(define-macro (MULTI-NAME X (... ...))
#'(begin (NAME X) (... ...))))
(define-multi-version report* report)