1 ;;;; miscellaneous tests of LOOP-related stuff
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; While most of SBCL is derived from the CMU CL system, the test
7 ;;;; files (like this one) were written from scratch after the fork
10 ;;;; This software is in the public domain and is provided with
11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
12 ;;;; more information.
14 (in-package "CL-USER")
16 (load "compiler-test-util.lisp")
18 ;;; The bug reported by Alexei Dejneka on sbcl-devel 2001-09-03
20 (assert (equal (let ((hash (make-hash-table)))
21 (setf (gethash 'key1 hash) 'val1)
22 (setf (gethash 'key2 hash) 'val2)
23 (sort (loop for key being each hash-key in hash
28 ;;; Bug 81, reported by Wolfhard Buss on cmucl-help 2001-02-14, was
29 ;;; fixed by Alexey Dejneka's patch on sbcl-devel 2001-09-30.
30 (assert (equal '(0.0 1.0 2.0 3.0)
31 (loop with (a . b) of-type float = '(0.0 . 1.0)
32 and (c . d) of-type float = '(2.0 . 3.0)
33 return (list a b c d))))
35 ;;; a bug reported and fixed by Alexey Dejneka sbcl-devel 2001-10-05:
36 ;;; The type declarations should apply, hence under Python's
37 ;;; declarations-are-assertions rule, the code should signal a type
38 ;;; error. (Except when running interpreted code)
39 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
40 (assert (typep (nth-value 1
44 of-type float = '(5 . 5)
45 return (list a b))))))
48 ;;; bug 103, reported by Arthur Lemmens sbcl-devel 2001-05-05,
49 ;;; fixed by Alexey Dejneka patch sbcl-devel 2001-10-05:
50 ;;; LOOP syntax requires that forms after INITIALLY, FINALLY, and DO
51 ;;; must be compound forms.
52 (multiple-value-bind (function warnings-p failure-p)
58 (declare (ignore function warnings-p))
61 ;;; a bug reported by Paul F. Dietz (in his ANSI test suite):
62 ;;; duplicate bindings in LOOP must signal errors of type
64 (assert (typep (nth-value 1
67 (loop for (a . a) in '((1 . 2) (3 . 4))
71 ;;; similar to gcl/ansi-test LOOP.1.27, and fixed at the same time:
72 (assert (equal (loop for x downto 7 by 2 from 13 collect x) '(13 11 9 7)))
74 ;;; some more from gcl/ansi-test:
75 (let ((table (make-hash-table)))
76 (setf (gethash 'foo table) '(bar baz))
77 (assert (= (loop for nil being the hash-keys of table count t) 1))
78 (assert (equal (loop for nil being the hash-keys of table
79 using (hash-value (v1 . v2))
84 (assert (= (loop for nil being the external-symbols of :cl count t) 978))
85 (assert (= (loop for x being the external-symbols of :cl count x) 977))
87 (let ((*package* (find-package :cl)))
88 (assert (= (loop for x being each external-symbol count t) 978)))
90 (assert (eq (loop for a = (return t) return nil) t))
92 (multiple-value-bind (result error)
94 (loop for nil being the external-symbols of :nonexistent-package
96 (assert (null result))
97 (assert (typep error 'package-error)))
99 (assert (equal (loop for i from 1 repeat (the (integer 7 7) 7) collect i)
102 (multiple-value-bind (result error)
104 (eval '(loop for i from 1 repeat 7 of-type fixnum collect i)))
105 (assert (null result))
106 (assert (typep error 'program-error)))
109 (ignore-errors (loop for i from 1 repeat 6.5 collect i))
110 (ignore-errors (loop for i from 1 repeat (eval '6.5) collect i))))
112 (assert (eq (block nil
113 (loop named foo do (loop-finish) finally (return :good))
117 (assert (= (loop with (a nil) = '(1 2) return a) 1))
118 (assert (= (loop with (nil a) = '(1 2) return a) 2))
119 (assert (= (loop with (a . nil) = '(1 2) return a) 1))
120 (assert (equal (loop with (nil . a) = '(1 2) return a) '(2)))
122 (multiple-value-bind (result error)
124 (loop for i in '(1 2 3) collect i always (< i 4)))
125 (assert (null result))
126 (assert (typep error 'program-error)))
128 (loop for i in '(1 2 3) collect i into foo always (< i 4)
129 finally (return foo))
132 (loop for i in '(1 2 3) collect i into foo always (= i 4)
133 finally (return foo))
135 (multiple-value-bind (result error)
137 (loop for i in '(1 2 3) always (< i 4) collect i))
138 (assert (null result))
139 (assert (typep error 'program-error)))
141 (loop for i in '(1 2 3) always (< i 4) collect i into foo
142 finally (return foo))
145 (loop for i in '(1 2 3) always (= i 4) collect i into foo
146 finally (return foo))
148 (multiple-value-bind (result error)
150 (loop for i in '(1 2 3) thereis (= i 3) collect i))
151 (assert (null result))
152 (assert (typep error 'program-error)))
154 (multiple-value-bind (result error)
156 (loop with i = 1 for x from 1 to 3 collect x into i))
157 (assert (null result))
158 (assert (typep error 'program-error)))
159 (multiple-value-bind (result error)
160 ;; this one has a plausible interpretation in terms of LET*, but
161 ;; ANSI seems specifically to disallow it
163 (loop with i = 1 with i = (1+ i)
166 (assert (null result))
167 (assert (typep error 'program-error)))
171 ;; this one just seems weird. Nevertheless...
172 (loop for i in '(a b c d)
176 '(a z b z c z d z))))
178 (let ((ht (make-hash-table)))
179 (setf (gethash 1 ht) 3)
180 (setf (gethash 7 ht) 15)
181 (assert (= (loop for v fixnum being each hash-key in ht sum v) 8))
182 (assert (= (loop for v fixnum being each hash-value in ht sum v) 18))
183 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
184 (assert (raises-error? (loop for v float being each hash-value in ht sum v)
187 ;; arithmetic indexes can be NIL or symbols.
188 (assert (equal (loop for nil from 0 to 2 collect nil)
190 (assert (equal (loop for nil to 2 collect nil)
193 ;; although allowed by the loop syntax definition in 6.2/LOOP,
194 ;; 6.1.2.1.1 says: "The variable var is bound to the value of form1 in
195 ;; the first iteration[...]"; since we can't bind (i j) to anything,
196 ;; we give a program error.
197 (multiple-value-bind (function warnings-p failure-p)
200 (loop for (i j) from 4 to 6 collect nil)))
203 ;; ...and another for indexes without FROM forms (these are treated
204 ;; differently by the loop code right now
205 (multiple-value-bind (function warnings-p failure-p)
208 (loop for (i j) to 6 collect nil)))
214 (loop for d of-type double-float from 0d0 to 10d0 by x collect d))
215 '(0d0 2d0 4d0 6d0 8d0 10d0)))
219 (loop for d of-type double-float downfrom 10d0 to 0d0 by x collect d))
220 '(10d0 8d0 6d0 4d0 2d0 0d0)))
222 (let ((fn (handler-case
223 (compile nil '(lambda ()
224 (declare (special x y))
225 (loop thereis (pop x) thereis (pop y))))
226 (warning (c) (error "Warned: ~S" c)))))
227 (let ((x (list nil nil 1))
228 (y (list nil 2 nil)))
229 (declare (special x y))
230 (assert (= (funcall fn) 2))))
232 ;;; Incorrect LIST type declaration, reported and patched by Teemu
233 ;;; Kalvas: end testing is done "as if by atom" so this is supposed
235 (assert (equal '(1 2) (loop for (a . b) on '(1 2 . 3) collect a)))
237 ;;; Detection of duplicate bindings, reported by Bruno Haible for CMUCL.
238 (multiple-value-bind (_ condition)
240 (macroexpand '(LOOP WITH A = 0 FOR A DOWNFROM 10 TO 0 DO (PRINT A))))
242 (assert (typep condition 'program-error)))
244 ;;; Loop variable with a range excluding 0, reported by Andras Simon.
245 ;;; (Used to signal an error during macroexpansion.)
246 (assert (not (loop with foo of-type (single-float 1.0 2.0) = 1.5 do (return))))
248 ;;; 1.0.26.12 used to signal a bogus type error for this.
249 (loop with x of-type (simple-vector 1) = (make-array '(1))
253 (with-test (:name :bug-540186)
254 (let ((fun (compile nil `(lambda (x)
255 (loop for i from 0 below (length x)
256 for vec of-type vector = (aref x i)
258 (assert (equal '("foo" "bar")
260 (vector "foo" "bar"))))))
262 (with-test (:name :bug-lp613871)
263 (multiple-value-bind (function warnings-p failure-p)
264 (compile nil '(lambda () (loop with nil = 1 repeat 2 collect t)))
265 (assert (null warnings-p))
266 (assert (null failure-p))
267 (assert (equal '(t t) (funcall function))))
268 (multiple-value-bind (function warnings-p failure-p)
269 (compile nil '(lambda () (loop with nil repeat 2 collect t)))
270 (assert (null warnings-p))
271 (assert (null failure-p))
272 (assert (equal '(t t) (funcall function)))))
274 (with-test (:name :bug-654220-regression)
275 (assert (= 32640 (loop for i to 255
276 sum i into sum of-type fixnum
277 finally (return sum)))))
279 (with-test (:name :of-type-character-init)
280 ;; The intention here is to if we initialize C to NIL before iteration start
281 ;; by looking for tell-tale types such as (OR NULL CHARACTER). ...not the
282 ;; most robust test ever, no.
283 (let* ((fun (compile nil `(lambda (x)
284 (loop for c of-type character in x
285 collect (char-code c)))))
286 (consts (ctu:find-code-constants fun :type '(or symbol list))))
287 (assert (or (null consts) (equal 'character consts)))))