| 1 | ;;;; gc.test --- test guile's garbage collection -*- scheme -*- |
| 2 | ;;;; Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc. |
| 3 | ;;;; |
| 4 | ;;;; This library is free software; you can redistribute it and/or |
| 5 | ;;;; modify it under the terms of the GNU Lesser General Public |
| 6 | ;;;; License as published by the Free Software Foundation; either |
| 7 | ;;;; version 2.1 of the License, or (at your option) any later version. |
| 8 | ;;;; |
| 9 | ;;;; This library is distributed in the hope that it will be useful, |
| 10 | ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | ;;;; Lesser General Public License for more details. |
| 13 | ;;;; |
| 14 | ;;;; You should have received a copy of the GNU Lesser General Public |
| 15 | ;;;; License along with this library; if not, write to the Free Software |
| 16 | ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | |
| 18 | (use-modules (ice-9 documentation) |
| 19 | (test-suite lib)) |
| 20 | |
| 21 | |
| 22 | ;;; |
| 23 | ;;; miscellaneous |
| 24 | ;;; |
| 25 | |
| 26 | |
| 27 | (define (documented? object) |
| 28 | (not (not (object-documentation object)))) |
| 29 | |
| 30 | ;; In guile 1.6.4 this test bombed, due to the record in h being collected |
| 31 | ;; by the gc, but not removed from h, leaving "x" as a freed cell. |
| 32 | ;; The usual correct result here is for x to be #f, but there's always a |
| 33 | ;; chance gc will mark something used when it isn't, so we allow x to be a |
| 34 | ;; record too. |
| 35 | (pass-if "weak-values versus records" |
| 36 | (let ((rec-type (make-record-type "foo" '())) |
| 37 | (h (make-weak-value-hash-table 61))) |
| 38 | (hash-set! h "foo" ((record-constructor rec-type))) |
| 39 | (gc) |
| 40 | (let ((x (hash-ref h "foo"))) |
| 41 | (or (not x) |
| 42 | ((record-predicate rec-type) x))))) |
| 43 | |
| 44 | |
| 45 | ;;; |
| 46 | ;;; |
| 47 | ;;; |
| 48 | |
| 49 | (with-test-prefix "gc" |
| 50 | |
| 51 | (pass-if "after-gc-hook gets called" |
| 52 | (let* ((foo #f) |
| 53 | (thunk (lambda () (set! foo #t)))) |
| 54 | (add-hook! after-gc-hook thunk) |
| 55 | (gc) |
| 56 | (remove-hook! after-gc-hook thunk) |
| 57 | foo))) |