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6a4d3cfd JB |
1 | ;;;; ls.scm --- functions for browsing modules |
2 | ;;;; | |
1a179b03 | 3 | ;;;; Copyright (C) 1995, 1996, 1997, 1999, 2001 Free Software Foundation, Inc. |
6a4d3cfd JB |
4 | ;;;; |
5 | ;;;; This program is free software; you can redistribute it and/or modify | |
6 | ;;;; it under the terms of the GNU General Public License as published by | |
7 | ;;;; the Free Software Foundation; either version 2, or (at your option) | |
8 | ;;;; any later version. | |
9 | ;;;; | |
10 | ;;;; This program is distributed in the hope that it will be useful, | |
11 | ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | ;;;; GNU General Public License for more details. | |
14 | ;;;; | |
15 | ;;;; You should have received a copy of the GNU General Public License | |
16 | ;;;; along with this software; see the file COPYING. If not, write to | |
17 | ;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
18 | ;;;; Boston, MA 02111-1307 USA | |
a482f2cc MV |
19 | ;;;; |
20 | ;;;; As a special exception, the Free Software Foundation gives permission | |
21 | ;;;; for additional uses of the text contained in its release of GUILE. | |
22 | ;;;; | |
23 | ;;;; The exception is that, if you link the GUILE library with other files | |
24 | ;;;; to produce an executable, this does not by itself cause the | |
25 | ;;;; resulting executable to be covered by the GNU General Public License. | |
26 | ;;;; Your use of that executable is in no way restricted on account of | |
27 | ;;;; linking the GUILE library code into it. | |
28 | ;;;; | |
29 | ;;;; This exception does not however invalidate any other reasons why | |
30 | ;;;; the executable file might be covered by the GNU General Public License. | |
31 | ;;;; | |
32 | ;;;; This exception applies only to the code released by the | |
33 | ;;;; Free Software Foundation under the name GUILE. If you copy | |
34 | ;;;; code from other Free Software Foundation releases into a copy of | |
35 | ;;;; GUILE, as the General Public License permits, the exception does | |
36 | ;;;; not apply to the code that you add in this way. To avoid misleading | |
37 | ;;;; anyone as to the status of such modified files, you must delete | |
38 | ;;;; this exception notice from them. | |
39 | ;;;; | |
40 | ;;;; If you write modifications of your own for GUILE, it is your choice | |
41 | ;;;; whether to permit this exception to apply to your modifications. | |
42 | ;;;; If you do not wish that, delete this exception notice. | |
6a4d3cfd JB |
43 | ;;;; |
44 | \f | |
a6401ee0 | 45 | (define-module (ice-9 ls) |
1a179b03 MD |
46 | :use-module (ice-9 common-list) |
47 | :export (local-definitions-in definitions-in ls lls | |
48 | recursive-local-define)) | |
a6401ee0 JB |
49 | |
50 | ;;;; | |
51 | ;;; local-definitions-in root name | |
52 | ;;; Returns a list of names defined locally in the named | |
53 | ;;; subdirectory of root. | |
54 | ;;; definitions-in root name | |
55 | ;;; Returns a list of all names defined in the named | |
56 | ;;; subdirectory of root. The list includes alll locally | |
57 | ;;; defined names as well as all names inherited from a | |
58 | ;;; member of a use-list. | |
59 | ;;; | |
60 | ;;; A convenient interface for examining the nature of things: | |
61 | ;;; | |
62 | ;;; ls . various-names | |
63 | ;;; | |
67e6fa38 JB |
64 | ;;; With no arguments, return a list of definitions in |
65 | ;;; `(current-module)'. | |
66 | ;;; | |
a6401ee0 JB |
67 | ;;; With just one argument, interpret that argument as the |
68 | ;;; name of a subdirectory of the current module and | |
69 | ;;; return a list of names defined there. | |
70 | ;;; | |
71 | ;;; With more than one argument, still compute | |
72 | ;;; subdirectory lists, but return a list: | |
73 | ;;; ((<subdir-name> . <names-defined-there>) | |
74 | ;;; (<subdir-name> . <names-defined-there>) | |
75 | ;;; ...) | |
76 | ;;; | |
67e6fa38 JB |
77 | ;;; lls . various-names |
78 | ;;; | |
79 | ;;; Analogous to `ls', but with local definitions only. | |
a6401ee0 | 80 | |
1a179b03 | 81 | (define (local-definitions-in root names) |
a6401ee0 JB |
82 | (let ((m (nested-ref root names)) |
83 | (answer '())) | |
84 | (if (not (module? m)) | |
85 | (set! answer m) | |
86 | (module-for-each (lambda (k v) (set! answer (cons k answer))) m)) | |
87 | answer)) | |
88 | ||
1a179b03 | 89 | (define (definitions-in root names) |
a6401ee0 JB |
90 | (let ((m (nested-ref root names))) |
91 | (if (not (module? m)) | |
92 | m | |
93 | (reduce union | |
94 | (cons (local-definitions-in m '()) | |
95 | (map (lambda (m2) (definitions-in m2 '())) | |
96 | (module-uses m))))))) | |
97 | ||
1a179b03 | 98 | (define (ls . various-refs) |
67e6fa38 | 99 | (if (pair? various-refs) |
a6401ee0 JB |
100 | (if (cdr various-refs) |
101 | (map (lambda (ref) | |
102 | (cons ref (definitions-in (current-module) ref))) | |
103 | various-refs) | |
67e6fa38 JB |
104 | (definitions-in (current-module) (car various-refs))) |
105 | (definitions-in (current-module) '()))) | |
a6401ee0 | 106 | |
1a179b03 | 107 | (define (lls . various-refs) |
67e6fa38 | 108 | (if (pair? various-refs) |
a6401ee0 JB |
109 | (if (cdr various-refs) |
110 | (map (lambda (ref) | |
111 | (cons ref (local-definitions-in (current-module) ref))) | |
112 | various-refs) | |
67e6fa38 JB |
113 | (local-definitions-in (current-module) (car various-refs))) |
114 | (local-definitions-in (current-module) '()))) | |
a6401ee0 | 115 | |
1a179b03 | 116 | (define (recursive-local-define name value) |
a6401ee0 JB |
117 | (let ((parent (reverse! (cdr (reverse name))))) |
118 | (and parent (make-modules-in (current-module) parent)) | |
119 | (local-define name value))) | |
67e6fa38 JB |
120 | |
121 | ;;; ls.scm ends here |