1 ;;;; This software is part of the SBCL system. See the README file for
4 ;;;; While most of SBCL is derived from the CMU CL system, the test
5 ;;;; files (like this one) were written from scratch after the fork
8 ;;;; This software is in the public domain and is provided with
9 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
10 ;;;; more information.
12 (cl:in-package :cl-user)
17 (:export #:code #:code-msg #:%code-msg))
19 (define-condition code ()
20 ((msg :reader code-msg :reader %code-msg :initarg :msg)))
25 (define-condition code1 (code)
26 ((msg :accessor code-msg :initarg :msg)))
28 (let ((code (make-condition 'code :msg 1)))
29 (assert (typep code 'code))
30 (assert (eql (code-msg code) 1))
31 (assert (eql (%code-msg code) 1)))
32 (let ((code (make-condition 'code1 :msg 1)))
33 (assert (typep code 'code))
34 (assert (eql (code-msg code) 1))
35 (assert (eql (%code-msg code) 1))
36 (setf (code-msg code) 2)
37 (assert (eql (code-msg code) 2))
38 (assert (eql (%code-msg code) 1)))
40 ;;; Check that initializing the condition class metaobject doesn't create
41 ;;; any instances. Reported by Marco Baringer on sbcl-devel Mon, 05 Jul 2004.
42 (defvar *condition-count* 0)
43 (define-condition counted-condition () ((slot :initform (incf *condition-count*))))
44 (defmethod frob-counted-condition ((x counted-condition)) x)
45 (assert (= 0 *condition-count*))
46 (assert (typep (sb-mop:class-prototype (find-class 'counted-condition))
47 '(and condition counted-condition)))
49 (define-condition picky-condition () ())
52 (error 'picky-condition)
54 (assert (eq (car (compute-restarts)) (car (compute-restarts c))))))
58 (typep c '(or null picky-condition)))
61 ;;; adapted from Helmut Eller on cmucl-imp
65 (error 'picky-condition)
67 (invoke-restart (find-restart 'give-it c))))
69 :test (lambda (c) (typep c 'picky-condition))
72 ;;; In sbcl-1.0.9, a condition derived from CL:STREAM-ERROR (or
73 ;;; CL:READER-ERROR or or CL:PARSE-ERROR) didn't inherit a usable
74 ;;; PRINT-OBJECT method --- the PRINT-OBJECT code implicitly assumed
75 ;;; that CL:STREAM-ERROR was like a SIMPLE-CONDITION, with args and
76 ;;; format control, which seems to be a preANSIism.
78 ;;; (The spec for DEFINE-CONDITION says that if :REPORT is not
79 ;;; supplied, "information about how to report this type of condition
80 ;;; is inherited from the PARENT-TYPE." The spec doesn't explicitly
81 ;;; forbid the inherited printer from trying to read slots which
82 ;;; aren't portably specified for the condition, but it doesn't seem
83 ;;; reasonable for the inherited printer to do so. It does seem
84 ;;; reasonable for app code to derive a new condition from
85 ;;; CL:READER-ERROR (perhaps for an error in a readmacro) or
86 ;;; CL:PARSE-ERROR (perhaps for an error in an operator
87 ;;; READ-MY-FAVORITE-DATA-STRUCTURE) or CL:STREAM-ERROR (dunno why
88 ;;; offhand, but perhaps for some Gray-stream-ish reason), not define
89 ;;; a :REPORT method for its new condition, and expect to inherit from
90 ;;; the application's printer all the cruft required for describing
91 ;;; the location of the error in the input.)
92 (define-condition my-stream-error-1-0-9 (stream-error) ())
93 (define-condition parse-foo-error-1-0-9 (parse-error) ())
94 (define-condition read-bar-error-1-0-9 (reader-error) ())
95 (let (;; instances created initializing all the slots specified in
97 (parse-foo-error-1-0-9 (make-condition 'parse-foo-error-1-0-9
98 :stream *standard-input*))
99 (read-foo-error-1-0-9 (make-condition 'read-bar-error-1-0-9
100 :stream *standard-input*))
101 (my-stream-error-1-0-9 (make-condition 'my-stream-error-1-0-9
102 :stream *standard-input*)))
103 ;; should be printable
105 my-stream-error-1-0-9
106 parse-foo-error-1-0-9
107 read-foo-error-1-0-9))
108 ;; whether escaped or not
109 (dolist (*print-escape* '(nil t))
110 (write c :stream (make-string-output-stream)))))
112 ;;; Reported by Michael Weber: restart computation in :TEST-FUNCTION used to
113 ;;; cause infinite recursion.
114 (defun restart-test-finds-restarts ()
117 (return-from restart-test-finds-restarts 42))
120 (find-restart 'qux))))
121 (when (find-restart 'bar)
122 (invoke-restart 'bar))))
123 (assert (not (restart-test-finds-restarts)))