Re: [Chicken-users] Giving (load)ed files access to macros?

[felix winkelmann]

On 6/5/06, Alejandro Forero Cuervo <address@hidden> wrote:
> > To define macros that are available at run-time (which seems to be what
> > you are trying to do), you can put a "(declare (run-time-macros))" in your
> > (compiled) code. This will make all low-level macros defined with
> > define-macro available in code eval'd at run-time.
> > If you need the non-standard syntax-extensions, you can do either:
> > declare run-time-macros and add "(include "chicken-more-macros")",
> > which compiles all macros in (makes your code bigger)
>
> Hmm, this doesn't seem to work. :-/  I have a file test.scm with the
> following code:
>
>     (declare (run-time-macros))
>     (load "foo.scm")
>
> In foo.scm I have this:
>
>     (receive (a) #f a)
>
> However, I get:
>
>     $ csi -script test.scm # does work
>     Warning: declarations are ignored in interpreted code
>     (##core#declare (quote (run-time-macros)))
>     $ csc test.scm
>     $ ./test
>     Error: unbound variable: a

You should add

(include "chicken-more-macros")

in your compiled file to make them available. Csi already has them
compiled in.

> On the other hand, using (eval '(require-extension
> chicken-more-macros)) seems to work slightly better but still not
> satisfactorily: I can't make my extensions load macros from extensions
> that have already been loaded by the compiled code.
>
> For example, I have:
>
> test.scm:
>
>     (require-extension srfi-40)
>     (eval '(require-extension chicken-more-macros))
>     (load "foo.scm")
>
> foo.scm:
>
>     (require-extension srfi-40)
>     (stream-cons #f stream-null))
>
> If I run the compiled test program I get:
>
>     Error: unbound variable: stream-cons
>
> How can my extensions use macros defined in Chicken eggs that are used
> by the compiled code?

The macros are loaded at compile-time, when compiling. The
"require-extension" in foo.scm on the other hand should work.
Have you removed the (register-feature! 'srfi-40) from the srfi-40
egg (see previous mail)?


(felix)