The new require-extension macro seems to be broken in CVS and,
unfortunately, in SISC 1.13.5.
--8<----8<----8<----8<----8<--
snoopy:~/tmp > mkdir test
snoopy:~/tmp > cat >test/t.scm
(module test/t (test) (define test 42))
snoopy:~/tmp > sisc
SISC (1.14.0-alpha)
#;> (library-exists? 'test/t)
#t
#;> (require-extension (test t))
Error: invalid syntax (require-extension (test t))
---------------------------
To enable more detailed stack tracing, start SISC with the
-Dsisc.maxStackTraceDepth=16 java option.
#;> (require-library 'test/t)
(test/t)
#;> (import test/t)
#;> test
42
#;> (exit)
--8<----8<----8<----8<----8<--
Part of it is due to a typo in the require-lib macro, but there are a
few things I don't understand about the new code:
1. Why does the [(_ (lib id0 id ...) clause ...) pattern in the
require-extension macro contain "clause" at all? The reference SRFI-55
macro uses quite a different pattern, and this "clause" doesn't seem
to be used.
2. The new code seems to specify that the syntax should be:
(require-extension (lib test/t))
Which a) is not backwards-compatible, b) is not documented in the
manual, c) does not seem to work anyway.
3. Shouldn't require-extension allow a module to be have a name
non-inclusive of its path, as per the current manual? Right now it
does not.
If these concerns are valid, I'll submit a bug in sourceforge. I have
modified srfi-55.scm to address 1 and 2. I have also written a version
that respects the old (require-extension (com/foo lib1 lib2)) syntax.
___
Alessandro
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