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import now recognizes and ignore ``for'' spec.

This commit is contained in:
Abdulaziz Ghuloum 2008-03-15 21:00:16 -04:00
parent a3f6e3e039
commit d35566081b
3 changed files with 24 additions and 20 deletions
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scheme/ikarus.boot.prebuilt
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scheme/last-revision
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@ -1 +1 @@
1412
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42
scheme/psyntax.expander.ss
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@ -3257,9 +3257,27 @@
(values (cons (id->sym x) name) pred))]
[() (values '() (lambda (x) #t))]
[_ (stx-error spec "invalid import spec")])))
(define (import-library spec*)
(let-values ([(name pred) (parse-library-name spec*)])
(when (null? name)
(syntax-violation 'import "empty library name" spec*))
(let ((lib (find-library-by-name name)))
(unless lib
(syntax-violation 'import
"cannot find library with required name"
name))
(unless (pred (library-version lib))
(syntax-violation 'import
"library does not satisfy version specification"
spec* lib))
((imp-collector) lib)
(library-subst lib))))
(define (get-import spec)
(syntax-match spec ()
((rename isp (old* new*) ...)
((x x* ...)
(not (memq (syntax->datum x) '(for rename except only prefix library)))
(import-library (cons x x*)))
((rename isp (old* new*) ...)
(and (eq? (syntax->datum rename) 'rename)
(for-all id? old*)
(for-all id? new*))
@ -3295,24 +3313,10 @@
(cdr x)))
subst)))
((library (spec* ...)) (eq? (syntax->datum library) 'library)
;;; FIXME: versioning stuff
(let-values ([(name pred) (parse-library-name spec*)])
(when (null? name)
(syntax-violation 'import "empty library name" spec*))
(let ((lib (find-library-by-name name)))
(unless lib
(syntax-violation 'import
"cannot find library with required name"
name))
(unless (pred (library-version lib))
(syntax-violation 'import
"library does not satisfy version specification"
spec* lib))
((imp-collector) lib)
(library-subst lib))))
((x x* ...)
(not (memq (syntax->datum x) '(rename except only prefix library)))
(get-import `(library (,x . ,x*))))
(import-library spec*))
((for isp . rest)
(eq? (syntax->datum for) 'for)
(get-import isp))
(spec (syntax-violation 'import "invalid import spec" spec))))
(define (add-imports! imp h)
(let ([subst (get-import imp)])