X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Floop.pure.lisp;h=5cd85f327654e150eaa14ef2033b3d7c376cb726;hb=HEAD;hp=46a38e86e08d1226817e618d52a9a30d16052017;hpb=2d75f4246b8451a9c2c95cd36673d98c82c9845f;p=sbcl.git

diff --git a/tests/loop.pure.lisp b/tests/loop.pure.lisp
index 46a38e8..5cd85f3 100644
--- a/tests/loop.pure.lisp
+++ b/tests/loop.pure.lisp
@@ -6,26 +6,282 @@
 ;;;; While most of SBCL is derived from the CMU CL system, the test
 ;;;; files (like this one) were written from scratch after the fork
 ;;;; from CMU CL.
-;;;; 
+;;;;
 ;;;; This software is in the public domain and is provided with
 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
 ;;;; more information.
 
 (in-package "CL-USER")
 
+(load "compiler-test-util.lisp")
+
 ;;; The bug reported by Alexei Dejneka on sbcl-devel 2001-09-03
 ;;; is fixed now.
 (assert (equal (let ((hash (make-hash-table)))
-		 (setf (gethash 'key1 hash) 'val1)
-		 (setf (gethash 'key2 hash) 'val2)
-		 (sort (loop for key being each hash-key in hash
-			     collect key)
-		       #'string<))
-	       '(key1 key2)))
+                 (setf (gethash 'key1 hash) 'val1)
+                 (setf (gethash 'key2 hash) 'val2)
+                 (sort (loop for key being each hash-key in hash
+                             collect key)
+                       #'string<))
+               '(key1 key2)))
 
 ;;; Bug 81, reported by Wolfhard Buss on cmucl-help 2001-02-14, was
 ;;; fixed by Alexey Dejneka's patch on sbcl-devel 2001-09-30.
 (assert (equal '(0.0 1.0 2.0 3.0)
-	       (loop with (a . b) of-type float = '(0.0 . 1.0)
-		     and (c . d) of-type float = '(2.0 . 3.0)
-		     return (list a b c d))))
+               (loop with (a . b) of-type float = '(0.0 . 1.0)
+                     and (c . d) of-type float = '(2.0 . 3.0)
+                     return (list a b c d))))
+
+;;; a bug reported and fixed by Alexey Dejneka sbcl-devel 2001-10-05:
+;;; The type declarations should apply, hence under Python's
+;;; declarations-are-assertions rule, the code should signal a type
+;;; error. (Except when running interpreted code)
+#+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
+(assert (typep (nth-value 1
+                          (ignore-errors
+                            (funcall (lambda ()
+                                       (loop with (a . b)
+                                             of-type float = '(5 . 5)
+                                             return (list a b))))))
+               'type-error))
+
+;;; bug 103, reported by Arthur Lemmens sbcl-devel 2001-05-05,
+;;; fixed by Alexey Dejneka patch sbcl-devel 2001-10-05:
+;;; LOOP syntax requires that forms after INITIALLY, FINALLY, and DO
+;;; must be compound forms.
+(multiple-value-bind (function warnings-p failure-p)
+    (compile nil
+             '(lambda ()
+                (loop while t do
+                      *print-level*
+                      (print t))))
+  (declare (ignore function warnings-p))
+  (assert failure-p))
+
+;;; a bug reported by Paul F. Dietz (in his ANSI test suite):
+;;; duplicate bindings in LOOP must signal errors of type
+;;; PROGRAM-ERROR.
+(assert (typep (nth-value 1
+                          (ignore-errors
+                            (funcall (lambda ()
+                                       (loop for (a . a) in '((1 . 2) (3 . 4))
+                                             return a)))))
+               'program-error))
+
+;;; similar to gcl/ansi-test LOOP.1.27, and fixed at the same time:
+(assert (equal (loop for x downto 7 by 2 from 13 collect x) '(13 11 9 7)))
+
+;;; some more from gcl/ansi-test:
+(let ((table (make-hash-table)))
+  (setf (gethash 'foo table) '(bar baz))
+  (assert (= (loop for nil being the hash-keys of table count t) 1))
+  (assert (equal (loop for nil being the hash-keys of table
+                               using (hash-value (v1 . v2))
+                       when v1
+                         return v2)
+                 '(baz))))
+
+(assert (= (loop for nil being the external-symbols of :cl count t) 978))
+(assert (= (loop for x being the external-symbols of :cl count x) 977))
+
+(let ((*package* (find-package :cl)))
+  (assert (= (loop for x being each external-symbol count t) 978)))
+
+(assert (eq (loop for a = (return t) return nil) t))
+
+(multiple-value-bind (result error)
+    (ignore-errors
+      (loop for nil being the external-symbols of :nonexistent-package
+            count t))
+  (assert (null result))
+  (assert (typep error 'package-error)))
+
+(assert (equal (loop for i from 1 repeat (the (integer 7 7) 7) collect i)
+               '(1 2 3 4 5 6 7)))
+
+(multiple-value-bind (result error)
+    (ignore-errors
+      (eval '(loop for i from 1 repeat 7 of-type fixnum collect i)))
+  (assert (null result))
+  (assert (typep error 'program-error)))
+
+(assert (equal
+         (ignore-errors (loop for i from 1 repeat 6.5 collect i))
+         (ignore-errors (loop for i from 1 repeat (eval '6.5) collect i))))
+
+(assert (eq (block nil
+              (loop named foo do (loop-finish) finally (return :good))
+              :bad)
+            :good))
+
+(assert (= (loop with (a nil) = '(1 2) return a) 1))
+(assert (= (loop with (nil a) = '(1 2) return a) 2))
+(assert (= (loop with (a . nil) = '(1 2) return a) 1))
+(assert (equal (loop with (nil . a) = '(1 2) return a) '(2)))
+
+(multiple-value-bind (result error)
+    (ignore-errors
+      (loop for i in '(1 2 3) collect i always (< i 4)))
+  (assert (null result))
+  (assert (typep error 'program-error)))
+(assert (equal
+         (loop for i in '(1 2 3) collect i into foo always (< i 4)
+               finally (return foo))
+         '(1 2 3)))
+(assert (equal
+         (loop for i in '(1 2 3) collect i into foo always (= i 4)
+               finally (return foo))
+         nil))
+(multiple-value-bind (result error)
+    (ignore-errors
+      (loop for i in '(1 2 3) always (< i 4) collect i))
+  (assert (null result))
+  (assert (typep error 'program-error)))
+(assert (equal
+         (loop for i in '(1 2 3) always (< i 4) collect i into foo
+               finally (return foo))
+         '(1 2 3)))
+(assert (equal
+         (loop for i in '(1 2 3) always (= i 4) collect i into foo
+               finally (return foo))
+         nil))
+(multiple-value-bind (result error)
+    (ignore-errors
+      (loop for i in '(1 2 3) thereis (= i 3) collect i))
+  (assert (null result))
+  (assert (typep error 'program-error)))
+
+(multiple-value-bind (result error)
+    (ignore-errors
+      (loop with i = 1 for x from 1 to 3 collect x into i))
+  (assert (null result))
+  (assert (typep error 'program-error)))
+(multiple-value-bind (result error)
+    ;; this one has a plausible interpretation in terms of LET*, but
+    ;; ANSI seems specifically to disallow it
+    (ignore-errors
+      (loop with i = 1 with i = (1+ i)
+            for x from 1 to 3
+            collect (+ x i)))
+  (assert (null result))
+  (assert (typep error 'program-error)))
+
+(let ((it 'z))
+  (assert (equal
+           ;; this one just seems weird.  Nevertheless...
+           (loop for i in '(a b c d)
+                 when i
+                   collect it
+                   and collect it)
+           '(a z b z c z d z))))
+
+(let ((ht (make-hash-table)))
+  (setf (gethash 1 ht) 3)
+  (setf (gethash 7 ht) 15)
+  (assert (= (loop for v fixnum being each hash-key in ht sum v) 8))
+  (assert (= (loop for v fixnum being each hash-value in ht sum v) 18))
+  #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
+  (assert (raises-error? (loop for v float being each hash-value in ht sum v)
+                         type-error)))
+
+;; arithmetic indexes can be NIL or symbols.
+(assert (equal (loop for nil from 0 to 2 collect nil)
+               '(nil nil nil)))
+(assert (equal (loop for nil to 2 collect nil)
+               '(nil nil nil)))
+
+;; although allowed by the loop syntax definition in 6.2/LOOP,
+;; 6.1.2.1.1 says: "The variable var is bound to the value of form1 in
+;; the first iteration[...]"; since we can't bind (i j) to anything,
+;; we give a program error.
+(multiple-value-bind (function warnings-p failure-p)
+    (compile nil
+             `(lambda ()
+                (loop for (i j) from 4 to 6 collect nil)))
+  (assert failure-p))
+
+;; ...and another for indexes without FROM forms (these are treated
+;; differently by the loop code right now
+(multiple-value-bind (function warnings-p failure-p)
+    (compile nil
+             `(lambda ()
+                (loop for (i j) to 6 collect nil)))
+  (assert failure-p))
+
+(assert
+ (equal
+  (let ((x 2d0))
+    (loop for d of-type double-float from 0d0 to 10d0 by x collect d))
+  '(0d0 2d0 4d0 6d0 8d0 10d0)))
+(assert
+ (equal
+  (let ((x 2d0))
+    (loop for d of-type double-float downfrom 10d0 to 0d0 by x collect d))
+  '(10d0 8d0 6d0 4d0 2d0 0d0)))
+
+(let ((fn (handler-case
+              (compile nil '(lambda ()
+                             (declare (special x y))
+                             (loop thereis (pop x) thereis (pop y))))
+            (warning (c) (error "Warned: ~S" c)))))
+  (let ((x (list nil nil 1))
+        (y (list nil 2 nil)))
+    (declare (special x y))
+    (assert (= (funcall fn) 2))))
+
+;;; Incorrect LIST type declaration, reported and patched by Teemu
+;;; Kalvas: end testing is done "as if by atom" so this is supposed
+;;; to work.
+(assert (equal '(1 2) (loop for (a . b) on '(1 2 . 3)  collect a)))
+
+;;; Detection of duplicate bindings, reported by Bruno Haible for CMUCL.
+(multiple-value-bind (_ condition)
+    (ignore-errors
+      (macroexpand '(LOOP WITH A = 0 FOR A DOWNFROM 10 TO 0 DO (PRINT A))))
+  (declare (ignore _))
+  (assert (typep condition 'program-error)))
+
+;;; Loop variable with a range excluding 0, reported by Andras Simon.
+;;; (Used to signal an error during macroexpansion.)
+(assert (not (loop with foo of-type (single-float 1.0 2.0) = 1.5 do (return))))
+
+;;; 1.0.26.12 used to signal a bogus type error for this.
+(loop with x of-type (simple-vector 1) = (make-array '(1))
+      repeat 1
+      return x)
+
+(with-test (:name :bug-540186)
+  (let ((fun (compile nil `(lambda (x)
+                             (loop for i from 0 below (length x)
+                                   for vec of-type vector = (aref x i)
+                                   collect vec)))))
+    (assert (equal '("foo" "bar")
+             (funcall fun
+                      (vector "foo" "bar"))))))
+
+(with-test (:name :bug-lp613871)
+  (multiple-value-bind (function warnings-p failure-p)
+      (compile nil '(lambda () (loop with nil = 1 repeat 2 collect t)))
+    (assert (null warnings-p))
+    (assert (null failure-p))
+    (assert (equal '(t t) (funcall function))))
+  (multiple-value-bind (function warnings-p failure-p)
+      (compile nil '(lambda () (loop with nil repeat 2 collect t)))
+    (assert (null warnings-p))
+    (assert (null failure-p))
+    (assert (equal '(t t) (funcall function)))))
+
+(with-test (:name :bug-654220-regression)
+  (assert (= 32640 (loop for i to 255
+                         sum i into sum of-type fixnum
+                         finally (return sum)))))
+
+(with-test (:name :of-type-character-init)
+  ;; The intention here is to if we initialize C to NIL before iteration start
+  ;; by looking for tell-tale types such as (OR NULL CHARACTER). ...not the
+  ;; most robust test ever, no.
+  (let* ((fun (compile nil `(lambda (x)
+                              (loop for c of-type character in x
+                                    collect (char-code c)))))
+         (consts (ctu:find-code-constants fun :type '(or symbol list))))
+    (assert (or (null consts) (equal 'character consts)))))