ice-9/ls.scm

   1 ;;;; ls.scm --- functions for browsing modules
   2 ;;;;
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  43 ;;;;
  44 \f
  45 (define-module (ice-9 ls)
  46   :use-module (ice-9 common-list))
  47
  48 ;;;;
  49 ;;;     local-definitions-in root name
  50 ;;;             Returns a list of names defined locally in the named
  51 ;;;             subdirectory of root.
  52 ;;;     definitions-in root name
  53 ;;;             Returns a list of all names defined in the named
  54 ;;;             subdirectory of root.  The list includes alll locally
  55 ;;;             defined names as well as all names inherited from a
  56 ;;;             member of a use-list.
  57 ;;;
  58 ;;; A convenient interface for examining the nature of things:
  59 ;;;
  60 ;;;     ls . various-names
  61 ;;;
  62 ;;;             With no arguments, return a list of definitions in
  63 ;;;             `(current-module)'.
  64 ;;;
  65 ;;;             With just one argument, interpret that argument as the
  66 ;;;             name of a subdirectory of the current module and
  67 ;;;             return a list of names defined there.
  68 ;;;
  69 ;;;             With more than one argument, still compute
  70 ;;;             subdirectory lists, but return a list:
  71 ;;;                     ((<subdir-name> . <names-defined-there>)
  72 ;;;                      (<subdir-name> . <names-defined-there>)
  73 ;;;                      ...)
  74 ;;;
  75 ;;;     lls . various-names
  76 ;;;
  77 ;;;             Analogous to `ls', but with local definitions only.
  78
  79 (define-public (local-definitions-in root names)
  80   (let ((m (nested-ref root names))
  81         (answer '()))
  82     (if (not (module? m))
  83         (set! answer m)
  84         (module-for-each (lambda (k v) (set! answer (cons k answer))) m))
  85     answer))
  86
  87 (define-public (definitions-in root names)
  88   (let ((m (nested-ref root names)))
  89     (if (not (module? m))
  90         m
  91         (reduce union
  92                 (cons (local-definitions-in m  '())
  93                       (map (lambda (m2) (definitions-in m2 '()))
  94                            (module-uses m)))))))
  95
  96 (define-public (ls . various-refs)
  97   (if (pair? various-refs)
  98        (if (cdr various-refs)
  99            (map (lambda (ref)
 100                   (cons ref (definitions-in (current-module) ref)))
 101                 various-refs)
 102           (definitions-in (current-module) (car various-refs)))
 103       (definitions-in (current-module) '())))
 104
 105 (define-public (lls . various-refs)
 106   (if (pair? various-refs)
 107        (if (cdr various-refs)
 108            (map (lambda (ref)
 109                   (cons ref (local-definitions-in (current-module) ref)))
 110                 various-refs)
 111           (local-definitions-in (current-module) (car various-refs)))
 112       (local-definitions-in (current-module) '())))
 113
 114 (define-public (recursive-local-define name value)
 115   (let ((parent (reverse! (cdr (reverse name)))))
 116     (and parent (make-modules-in (current-module) parent))
 117     (local-define name value)))
 118
 119 ;;; ls.scm ends here