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81 lines
3.1 KiB
Scheme
81 lines
3.1 KiB
Scheme
;;;; gc.test --- test guile's garbage collection -*- scheme -*-
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;;;; Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or modify
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;;;; it under the terms of the GNU General Public License as published by
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;;;; the Free Software Foundation; either version 2, or (at your option)
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;;;; any later version.
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;;;;
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;;;; This program 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
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;;;; Boston, MA 02110-1301 USA
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;;;;
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;;;; As a special exception, the Free Software Foundation gives permission
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;;;; for additional uses of the text contained in its release of GUILE.
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;;;;
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;;;; The exception is that, if you link the GUILE library with other files
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;;;; to produce an executable, this does not by itself cause the
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;;;; resulting executable to be covered by the GNU General Public License.
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;;;; Your use of that executable is in no way restricted on account of
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;;;; linking the GUILE library code into it.
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;;;;
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;;;; This exception does not however invalidate any other reasons why
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;;;; the executable file might be covered by the GNU General Public License.
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;;;;
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;;;; This exception applies only to the code released by the
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;;;; Free Software Foundation under the name GUILE. If you copy
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;;;; code from other Free Software Foundation releases into a copy of
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;;;; GUILE, as the General Public License permits, the exception does
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;;;; not apply to the code that you add in this way. To avoid misleading
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;;;; anyone as to the status of such modified files, you must delete
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;;;; this exception notice from them.
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;;;;
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;;;; If you write modifications of your own for GUILE, it is your choice
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;;;; whether to permit this exception to apply to your modifications.
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;;;; If you do not wish that, delete this exception notice.
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(use-modules (ice-9 documentation))
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;;;
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;;; miscellaneous
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;;;
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(define (documented? object)
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(not (not (object-documentation object))))
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;; In guile 1.6.4 this test bombed, due to the record in h being collected
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;; by the gc, but not removed from h, leaving "x" as a freed cell.
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;; The usual correct result here is for x to be #f, but there's always a
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;; chance gc will mark something used when it isn't, so we allow x to be a
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;; record too.
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(pass-if "weak-values versus records"
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(let ((rec-type (make-record-type "foo" '()))
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(h (make-weak-value-hash-table 61)))
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(hash-set! h "foo" ((record-constructor rec-type)))
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(gc)
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(let ((x (hash-ref h "foo")))
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(or (not x)
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((record-predicate rec-type) x)))))
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;;;
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;;;
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;;;
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(with-test-prefix "gc"
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(pass-if "after-gc-hook gets called"
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(let* ((foo #f)
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(thunk (lambda () (set! foo #t))))
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(add-hook! after-gc-hook thunk)
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(gc)
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(remove-hook! after-gc-hook thunk)
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foo)))
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