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28b8c785e7
* module/ice-9/ls.scm (local-definitions-in, definitions-in): Use nested module procedures, as appropriate. (recursive-local-define): Fix attempt to treat null as false. Whoops..
94 lines
3.2 KiB
Scheme
94 lines
3.2 KiB
Scheme
;;;; ls.scm --- functions for browsing modules
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;;;;
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;;;; Copyright (C) 1995, 1996, 1997, 1999, 2001, 2006, 2010 Free Software Foundation, Inc.
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;;;;
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;;;
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(define-module (ice-9 ls)
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:use-module (ice-9 common-list)
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:export (local-definitions-in definitions-in ls lls
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recursive-local-define))
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;;;;
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;;; local-definitions-in root name
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;;; Returns a list of names defined locally in the named
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;;; subdirectory of root.
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;;; definitions-in root name
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;;; Returns a list of all names defined in the named
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;;; subdirectory of root. The list includes alll locally
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;;; defined names as well as all names inherited from a
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;;; member of a use-list.
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;;;
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;;; A convenient interface for examining the nature of things:
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;;;
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;;; ls . various-names
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;;;
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;;; With no arguments, return a list of definitions in
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;;; `(current-module)'.
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;;;
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;;; With just one argument, interpret that argument as the
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;;; name of a subdirectory of the current module and
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;;; return a list of names defined there.
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;;;
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;;; With more than one argument, still compute
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;;; subdirectory lists, but return a list:
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;;; ((<subdir-name> . <names-defined-there>)
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;;; (<subdir-name> . <names-defined-there>)
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;;; ...)
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;;;
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;;; lls . various-names
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;;;
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;;; Analogous to `ls', but with local definitions only.
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(define (local-definitions-in root names)
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(let ((m (nested-ref-module root names)))
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(if m
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(module-map (lambda (k v) k) m)
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(nested-ref root names))))
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(define (definitions-in root names)
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(let ((m (nested-ref-module root names)))
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(if m
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(reduce union
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(cons (local-definitions-in m '())
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(map (lambda (m2) (definitions-in m2 '()))
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(module-uses m))))
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(nested-ref root names))))
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(define (ls . various-refs)
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(if (pair? various-refs)
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(if (cdr various-refs)
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(map (lambda (ref)
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(cons ref (definitions-in (current-module) ref)))
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various-refs)
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(definitions-in (current-module) (car various-refs)))
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(definitions-in (current-module) '())))
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(define (lls . various-refs)
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(if (pair? various-refs)
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(if (cdr various-refs)
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(map (lambda (ref)
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(cons ref (local-definitions-in (current-module) ref)))
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various-refs)
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(local-definitions-in (current-module) (car various-refs)))
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(local-definitions-in (current-module) '())))
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(define (recursive-local-define name value)
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(let ((parent (reverse! (cdr (reverse name)))))
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(module-define! (make-modules-in (current-module) parent)
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name value)))
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;;; ls.scm ends here
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