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* definitions in macros?
@ 2020-03-22 19:07 Han-Wen Nienhuys
  2020-03-22 19:16 ` Matt Wette
  2020-03-22 21:09 ` David Kastrup
  0 siblings, 2 replies; 4+ messages in thread
From: Han-Wen Nienhuys @ 2020-03-22 19:07 UTC (permalink / raw)
  To: Guile Devel; +Cc: lilypond-devel

Hi there,

in my quest to get lilypond working with GUILE 2+, I've hit another
stumbling block.

In order to make compilation with GUILE 2+ working, we have to move
away from runtime symbol definition (ie. module-define! calls).

In the code below, it looks like only one of the two definitions in
the body of my-macro-new takes effect. Is this expected, and if so,
why?

(defmacro-public my-macro-old (command-and-args . definition)
  (module-define! (current-module) 'x1 "I am X1\n")
  (module-define! (current-module) 'x2 "I am X2\n"))

(defmacro-public my-macro-new (command-and-args . definition)
    `(define p "i am P\n")
    `(define q "i am Q\n"))


(my-macro-old 1 2)
(my-macro-new 1 2)
(display x1)
(display x2)
(display q)
(display p)


thanks,

-- 
Han-Wen Nienhuys - hanwenn@gmail.com - http://www.xs4all.nl/~hanwen



^ permalink raw reply	[flat|nested] 4+ messages in thread

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-- links below jump to the message on this page --
2020-03-22 19:07 definitions in macros? Han-Wen Nienhuys
2020-03-22 19:16 ` Matt Wette
2020-03-22 21:09 ` David Kastrup
2020-03-23  7:21   ` Han-Wen Nienhuys

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