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* "define-constant is only allowed in a <body>"
@ 2022-11-19 14:37 Panicz Maciej Godek
  2022-11-20 22:41 ` Per Bothner
  0 siblings, 1 reply; 3+ messages in thread
From: Panicz Maciej Godek @ 2022-11-19 14:37 UTC (permalink / raw)
  To: kawa

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I have a module named (mapping), which contains a thing that I have called
"mapping", which is a nice functional interface to mutable hash tables
(based on SRFI-17):

Therein, you can also find the following definition of define-mapping:

(define-syntax-rule (define-mapping (mapping-name key) default-value)
   (define-early-constant mapping-name
      (mapping (key) default-value)))

where define-syntax-rule is defined in a straightforward way in another

When I try to use this code from yet another module -- more specifically,
this one:


(define-mapping (on-key-press code) never)

I get the error message

define-constant is only allowed in a <body>

but when I use the expanded version

(define on-key-press (mapping (code) never))

everything works.

I wonder what could be the reason of Kawa's behavior.

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-11-20 23:29 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-11-19 14:37 "define-constant is only allowed in a <body>" Panicz Maciej Godek
2022-11-20 22:41 ` Per Bothner
2022-11-20 23:29   ` Panicz Maciej Godek

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