Re: srfi-89 implementation for guile

[Linus Björnstam]

Well done! Macros are great fun. I glanced through your source and could follow 
it without much hickups. You probably know this already, but you can actually 
do the sanitize-rest at compile time for cases where the procedure is not 
passed as an argument to some.other procedure.

Say we (define* (blah ...) Body...).

Then you define one function that does argument checking (%blah-check) at 
runtime and one that does not (%blah)

Then make the regular blah a macro. Using identifier macros you dispatch to 
%blah-check if it is not used in call position, or check all keyword arguments 
and sanitize them at compile time and dispatch it to %blah. 

I spent some time implementing define-inlinable*, a keyword-aware 
define-inlinable, using that. I never baked it fully, so I never submitted a 
patch, but that is the approach I took, and the approach that define-inlinable 
uses which you can find in the guile sources.



-- 
  Linus Björnstam

On Mon, 10 Aug 2020, at 22:07, Martin Becze wrote:
> Hi Guilers,
> I implemented srfi-89 (Optional positional and named parameters)
> https://gitlab.com/mjbecze/guile-srfi-89/
> 
> It is hygienic and reuses guile's lambda* so there is minimal overhead.
> 
> Cheers!,
> -Martin Becze
> 
> 
> Attachments:
> * signature.asc