1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
;-*- Mode: Lisp -*-
;;;; Author: Paul Dietz
;;;; Created: Sat Oct 19 07:00:57 2002
;;;; Contains: Tests of MULTIPLE-VALUE-SETQ
(in-package :cl-test)
(deftest multiple-value-setq.1
(let ((x 1) (y 2))
(values
(multiple-value-list
(multiple-value-setq (x y) (values 3 4)))
x y))
(3) 3 4)
(deftest multiple-value-setq.2
(let (x)
(multiple-value-setq (x) (values 1 2))
x)
1)
(deftest multiple-value-setq.3
(let (x)
(symbol-macrolet ((y x))
(multiple-value-setq (y) (values 1 2))
x))
1)
(deftest multiple-value-setq.4
(let ((x (list nil)))
(symbol-macrolet ((y (car x)))
(multiple-value-setq (y) (values 1 2))
x))
(1))
;;; test of order of evaluation
;;; The (INCF I) should be evaluated before the assigned form I.
(deftest multiple-value-setq.5
(let ((i 0) (x (list nil)))
(symbol-macrolet ((y (car (progn (incf i) x))))
(multiple-value-setq (y) i))
x)
(1))
(deftest multiple-value-setq.6
(let ((x (list nil)) z)
(symbol-macrolet ((y (car x)))
(multiple-value-setq (y z) (values 1 2)))
(values x z))
(1) 2)
(deftest multiple-value-setq.7
(let ((x (list nil)) (z (list nil)))
(symbol-macrolet ((y (car x))
(w (car z)))
(multiple-value-setq (y w) (values 1 2)))
(values x z))
(1) (2))
;;; Another order of evaluation tests, this time with two
;;; symbol macro arguments
(deftest multiple-value-setq.8
(let ((x (list nil)) (z (list nil)) (i 0))
(symbol-macrolet ((y (car (progn (incf i 3) x)))
(w (car (progn (incf i i) z))))
(multiple-value-setq (y w) (values i 10)))
(values x z))
(6) (10))
(deftest multiple-value-setq.9
(let (x)
(values
(multiple-value-setq (x x) (values 1 2))
x))
1 2)
(deftest multiple-value-setq.10
(let (x)
(values
(multiple-value-setq (x x) (values 1))
x))
1 nil)
(deftest multiple-value-setq.11
(let ((x 1) (y 2) (z 3))
(multiple-value-setq (x y z) (values))
(values x y z))
nil nil nil)
(deftest multiple-value-setq.12
(let ((n (min 100 multiple-values-limit))
(vars nil)
(result nil))
(loop
for i from 1 below n
for form =
(progn
(push (gensym) vars)
(push i result)
`(let ,vars
(and (eql (multiple-value-setq ,vars (values-list (quote ,result)))
,(car result))
(equal ,(make-list-expr vars)
(quote ,result)))))
unless (eval form)
collect (list i form)))
nil)
(deftest multiple-value-setq.13
(multiple-value-setq nil :good)
:good)
(deftest multiple-value-setq.14
(multiple-value-setq nil (values))
nil)
(deftest multiple-value-setq.15
(multiple-value-setq nil (values 'a 'b))
a)
;;; Test that explicit calls to macroexpand in subforms
;;; are done in the correct environment
(deftest multiple-value-setq.16
(macrolet
((%m (z) z))
(let ((x :bad))
(symbol-macrolet ((z (expand-in-current-env (%m x))))
(multiple-value-setq (z) :good))
x))
:good)
(deftest multiple-value-setq.17
(macrolet
((%m (z) z))
(let ((x :bad))
(values
(multiple-value-setq (x) (expand-in-current-env (%m :good)))
x)))
:good :good)
;;; Error tests
(deftest multiple-value-setq.error.1
(signals-error (funcall (macro-function 'multiple-value-setq))
program-error)
t)
(deftest multiple-value-setq.error.2
(signals-error (funcall (macro-function 'multiple-value-setq)
'(multiple-value-setq nil nil))
program-error)
t)
(deftest multiple-value-setq.error.3
(signals-error (funcall (macro-function 'multiple-value-setq)
'(multiple-value-setq nil nil)
nil nil)
program-error)
t)
|
