X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Floop.pure.lisp;h=febf5a79ca24ee8f0c436d4418dc05f6b411610e;hb=64ec717cf13c44fb4571c1fd7fbd508551ecfe01;hp=7e6d4ce4a9824649ad5906b40a0c7b9fa9ca23b1;hpb=763c7b3ba0358ae9f92a06f17815b44422d53308;p=sbcl.git

diff --git a/tests/loop.pure.lisp b/tests/loop.pure.lisp
index 7e6d4ce..febf5a7 100644
--- a/tests/loop.pure.lisp
+++ b/tests/loop.pure.lisp
@@ -146,4 +146,71 @@
     (ignore-errors
       (loop for i in '(1 2 3) thereis (= i 3) collect i))
   (assert (null result))
-  (assert (typep error 'program-error)))
\ No newline at end of file
+  (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))
+  (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)))