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authorGemini Lasswell <gazally@runbox.com>2018-05-27 11:38:00 -0700
committerGemini Lasswell <gazally@runbox.com>2018-05-27 11:38:00 -0700
commit0f48d18fd2a30f29cc3592a835d2a2254c9b0afb (patch)
tree06ffe197481689bb051dfe0ebd04edaea892f13d /test/lisp/emacs-lisp
parent584f05cb11a8010f31beaf07c9ef4180b70d1d66 (diff)
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Make cl-print respect print-level and print-length (bug#31559)
* lisp/emacs-lisp/cl-print.el (cl-print--depth): New variable. (cl-print-object) <cons>: Print ellipsis if printing depth greater than 'print-level' or length of list greater than 'print-length'. (cl-print-object) <vector>: Truncate printing with ellipsis if vector is longer than 'print-length'. (cl-print-object) <cl-structure-object>: Truncate printing with ellipsis if structure has more slots than 'print-length'. (cl-print-object) <:around>: Bind 'cl-print--depth'. * test/lisp/emacs-lisp/cl-print-tests.el (cl-print-tests-3, cl-print-tests-4): New tests.
Diffstat (limited to 'test/lisp/emacs-lisp')
-rw-r--r--test/lisp/emacs-lisp/cl-print-tests.el25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/cl-print-tests.el b/test/lisp/emacs-lisp/cl-print-tests.el
index d986c4015d7..bfce4a16cec 100644
--- a/test/lisp/emacs-lisp/cl-print-tests.el
+++ b/test/lisp/emacs-lisp/cl-print-tests.el
@@ -47,6 +47,31 @@
"\\`(#1=#s(foo 1 2 3) #1#)\\'"
(cl-prin1-to-string (list x x)))))))
+(cl-defstruct (cl-print-tests-struct
+ (:constructor cl-print-tests-con))
+ a b c d e)
+
+(ert-deftest cl-print-tests-3 ()
+ "CL printing observes `print-length'."
+ (let ((long-list (make-list 5 'a))
+ (long-vec (make-vector 5 'b))
+ (long-struct (cl-print-tests-con))
+ (print-length 4))
+ (should (equal "(a a a a ...)" (cl-prin1-to-string long-list)))
+ (should (equal "[b b b b ...]" (cl-prin1-to-string long-vec)))
+ (should (equal "#s(cl-print-tests-struct :a nil :b nil :c nil :d nil ...)"
+ (cl-prin1-to-string long-struct)))))
+
+(ert-deftest cl-print-tests-4 ()
+ "CL printing observes `print-level'."
+ (let ((deep-list '(a (b (c (d (e))))))
+ (deep-struct (cl-print-tests-con))
+ (print-level 4))
+ (setf (cl-print-tests-struct-a deep-struct) deep-list)
+ (should (equal "(a (b (c (d ...))))" (cl-prin1-to-string deep-list)))
+ (should (equal "#s(cl-print-tests-struct :a (a (b (c ...))) :b nil :c nil :d nil :e nil)"
+ (cl-prin1-to-string deep-struct)))))
+
(ert-deftest cl-print-circle ()
(let ((x '(#1=(a . #1#) #1#)))
(let ((print-circle nil))