macro definition in module

macro definition in module

[Damien Mattei]

i know how to define a function in module,example

;; file ModuleName.scm

(define-simple-class ModuleName ()

 ((string-null? str)
   (string=? str "")))

but this syntax can help me to define a macro in module, is it possible?

Re: macro definition in module

[Per Bothner]

On 10/12/23 14:19, Damien Mattei via Kawa wrote:
> i know how to define a function in module,example
> 
> ;; file ModuleName.scm
> 
> (define-simple-class ModuleName ()
> 
>   ((string-null? str)
>     (string=? str "")))
> 
> but this syntax can help me to define a macro in module, is it possible?

Your example defines a method in a class (in a module).
Each module is compiled to a "module class" but when a module contains a simple class
with the same name, they are combined:
https://www.gnu.org/software/kawa/Module-classes.html#Same-class-for-module-and-defined-class

However, if you want to define a macro in a module, you have you have to use a separate
module class, because you can't define a macro in a simple class.

I suggest reading this thoroughly:
https://www.gnu.org/software/kawa/Module-classes.html
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

Re: macro definition in module

[Damien Mattei]

solution:

(module-name overload2)

(export foo bar)

(define (foo) '())


(define-syntax bar

  (syntax-rules ()

    ((_ proc) '())))

having some example in this documentation
https://www.gnu.org/software/kawa/Module-classes.html would make Kawa
more easy to use;

On Thu, Oct 12, 2023 at 11:19 PM Damien Mattei <damien.mattei@gmail.com> wrote:
>
> i know how to define a function in module,example
>
> ;; file ModuleName.scm
>
> (define-simple-class ModuleName ()
>
>  ((string-null? str)
>    (string=? str "")))
>
> but this syntax can help me to define a macro in module, is it possible?