1 ;;;; miscellaneous side-effectful tests of CLOS and file-compiler
4 ;;;; This software is part of the SBCL system. See the README file for
7 ;;;; While most of SBCL is derived from the CMU CL system, the test
8 ;;;; files (like this one) were written from scratch after the fork
11 ;;;; This software is in the public domain and is provided with
12 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
13 ;;;; more information.
15 ;;; Fix due to pmai, ported from CMUCL, regarding
16 ;;; MAKE-INSTANCES-OBSOLETE:
18 ((test :initarg :test)))
21 (let ((x (make-instance 'mio-test :test 42)))
22 (incf (slot-value x 'test))))
26 (make-instances-obsolete 'mio-test)
31 ;;; Some tests of bits of optimized MAKE-INSTANCE that were hopelessly
32 ;;; wrong until Gerd's ctor MAKE-INSTANCE optimization was ported.
33 (defvar *d-i-s-e-count* 0)
34 (defclass default-initargs-side-effect ()
36 (:default-initargs :x (incf *d-i-s-e-count*)))
37 (defun default-initargs-side-effect ()
38 (make-instance 'default-initargs-side-effect))
39 (assert (= *d-i-s-e-count* 0))
40 (default-initargs-side-effect)
41 (assert (= *d-i-s-e-count* 1))
42 (make-instance 'default-initargs-side-effect)
43 (assert (= *d-i-s-e-count* 2))
44 (make-instance 'default-initargs-side-effect :x 3)
45 (assert (= *d-i-s-e-count* 2))
47 (defclass class-allocation ()
48 ((x :allocation :class :initarg :x :initform 3)))
49 (defun class-allocation-reader ()
50 (slot-value (make-instance 'class-allocation) 'x))
51 (defun class-allocation-writer (value)
52 (setf (slot-value (make-instance 'class-allocation) 'x) value))
53 (assert (= (class-allocation-reader) 3))
54 (class-allocation-writer 4)
55 (assert (= (class-allocation-reader) 4))
57 ;;; from James Anderson via Gerd Moellmann: defining methods with
58 ;;; specializers with forward-referenced superclasses used not to
60 (defclass specializer1 () ())
61 (defclass specializer2 (forward-ref1) ())
62 (defmethod baz ((x specializer2)) x)
63 (defmethod baz ((x specializer1)) x)
64 (assert (typep (baz (make-instance 'specializer1)) 'specializer1))
66 ;;; ... and from McCLIM, another test case:
67 (defclass specializer1a (specializer2a specializer2b) ())
68 (defclass specializer2a () ())
69 (defmethod initialize-instance :after
70 ((obj specializer2a) &key &allow-other-keys)
73 ;;; in a similar vein, we should be able to define methods on classes
74 ;;; that are effectively unknown to the type system:
75 (sb-mop:ensure-class 'unknown-type)
76 (defmethod method ((x unknown-type)) x)
77 ;;; (we can't call it without defining methods on allocate-instance
78 ;;; etc., but we should be able to define it).
80 ;;; the ctor MAKE-INSTANCE optimizer used not to handle duplicate
82 (defclass dinitargs-class1 ()
84 (assert (= (slot-value (make-instance 'dinitargs-class1 :a 1 :a 2) 'a) 1))
86 (defclass dinitargs-class2 ()
87 ((b :initarg :b1 :initarg :b2)))
88 (assert (= (slot-value (make-instance 'dinitargs-class2 :b2 3 :b1 4) 'b) 3))
89 ;;; ... or default-initargs when the location was already initialized
90 (defvar *definitargs-counter* 0)
91 (defclass definitargs-class ()
92 ((a :initarg :a :initarg :a2))
93 (:default-initargs :a2 (incf *definitargs-counter*)))
94 (assert (= (slot-value (make-instance 'definitargs-class) 'a) 1))
95 (assert (= (slot-value (make-instance 'definitargs-class :a 0) 'a) 0))
96 (assert (= *definitargs-counter* 2))
99 (sb-ext:quit :unix-status 104)