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15ce5caf JG |
1 | ;;; eval.scm --- The R6RS `eval' library |
2 | ||
3 | ;; Copyright (C) 2010 Free Software Foundation, Inc. | |
4 | ;; | |
5 | ;; This library is free software; you can redistribute it and/or | |
6 | ;; modify it under the terms of the GNU Lesser General Public | |
7 | ;; License as published by the Free Software Foundation; either | |
8 | ;; version 3 of the License, or (at your option) any later version. | |
9 | ;; | |
10 | ;; This library 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 GNU | |
13 | ;; Lesser General Public License for more details. | |
14 | ;; | |
15 | ;; You should have received a copy of the GNU Lesser General Public | |
16 | ;; License along with this library; if not, write to the Free Software | |
17 | ;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | \f | |
19 | ||
20 | (library (rnrs eval (6)) | |
21 | (export eval environment) | |
22 | (import (only (guile) eval | |
23 | make-module | |
24 | module-uses | |
25 | beautify-user-module! | |
26 | set-module-uses!) | |
27 | (rnrs base (6)) | |
28 | (rnrs io simple (6)) | |
29 | (rnrs lists (6))) | |
30 | ||
31 | (define (environment . import-specs) | |
32 | (let ((module (make-module)) | |
33 | (needs-purify? (not (member '(guile) import-specs)))) | |
34 | (beautify-user-module! module) | |
35 | (for-each (lambda (import-spec) (eval (list 'import import-spec) module)) | |
36 | import-specs) | |
37 | (if needs-purify? (set-module-uses! module (cdr (module-uses module)))) | |
38 | module)) | |
39 | ) |