Am Montag, dem 28.03.2022 um 21:22 +0200 schrieb Jean Abou Samra: > 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? I think using plain old 'peek' might be preferable in most cases. While you're missing out on the LHS expression, you can mix it with symbols arbitrarily, e.g. (peek 'my-function a b 'args+kwargs= rest)
Cheers