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From: Jean Abou Samra <jean@abou-samra.fr>
To: guile-devel@gnu.org
Subject: Macro for Python-style debugging output
Date: Mon, 28 Mar 2022 21:22:55 +0200	[thread overview]
Message-ID: <8bfae8ae-3965-1fc7-1ab0-d67b1c87a831@abou-samra.fr> (raw)

The following macro is a variant of peek that mimics Python's = format
specifier (e.g. print(f"{a=} {a+b=}")) by printing expressions and the
values they evaluate to.

(define-syntax-rule (db arg ...)
   (begin
     (let ((evaluated-arg arg))
       (format (current-error-port) ";;; ~s => ~s\n" (quote arg) 
evaluated-arg)
       evaluated-arg)
     ...))

Am I reinventing the wheel? Does anyone see value in this
being added to Guile?

Thanks,
Jean




             reply	other threads:[~2022-03-28 19:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-28 19:22 Jean Abou Samra [this message]
2022-03-30 19:08 ` Macro for Python-style debugging output Liliana Marie Prikler
2022-03-31  2:38   ` Thien-Thi Nguyen

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