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authorMattias EngdegÄrd <mattiase@acm.org>2023-03-12 17:00:25 +0100
committerMattias EngdegÄrd <mattiase@acm.org>2023-03-12 18:12:18 +0100
commit75f04848a653e70f12f0e5a62b756c5bba0dd204 (patch)
treed0d857342f3e9078e9e0bec82c1951ce79d17e72 /test/lisp/emacs-lisp
parentf5f13495f5dac4148c1da8b0ba18c22daf77bb04 (diff)
downloademacs-75f04848a653e70f12f0e5a62b756c5bba0dd204.tar.gz
Repair and speed up safe-copy-tree and make it internal (bug#61962)
There is no particular requirement for safe-copy-tree so let's make it internal for now. The new implementation is faster and more correct. * doc/lispref/lists.texi (Building Lists): * etc/NEWS: Remove doc and announcement. * lisp/subr.el (safe-copy-tree--seen, safe-copy-tree--1) (safe-copy-tree): Remove old version. * lisp/emacs-lisp/bytecomp.el (bytecomp--copy-tree-seen) (bytecomp--copy-tree-1, bytecomp--copy-tree): Add new version. (byte-compile-initial-macro-environment): Use it. * test/lisp/subr-tests.el (subr--safe-copy-tree): * test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp--copy-tree): Move and improve tests.
Diffstat (limited to 'test/lisp/emacs-lisp')
-rw-r--r--test/lisp/emacs-lisp/bytecomp-tests.el28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/bytecomp-tests.el b/test/lisp/emacs-lisp/bytecomp-tests.el
index 10b009a261c..2cd4dd75742 100644
--- a/test/lisp/emacs-lisp/bytecomp-tests.el
+++ b/test/lisp/emacs-lisp/bytecomp-tests.el
@@ -1850,6 +1850,34 @@ EXPECTED-POINT BINDINGS (MODES \\='\\='(ruby-mode js-mode python-mode)) \
(should (eq (byte-compile-file src-file) 'no-byte-compile))
(should-not (file-exists-p dest-file))))
+(ert-deftest bytecomp--copy-tree ()
+ (should (null (bytecomp--copy-tree nil)))
+ (let ((print-circle t))
+ (let* ((x '(1 2 (3 4)))
+ (y (bytecomp--copy-tree x)))
+ (should (equal (prin1-to-string (list x y))
+ "((1 2 (3 4)) (1 2 (3 4)))")))
+ (let* ((x '#1=(a #1#))
+ (y (bytecomp--copy-tree x)))
+ (should (equal (prin1-to-string (list x y))
+ "(#1=(a #1#) #2=(a #2#))")))
+ (let* ((x '#1=(#1# a))
+ (y (bytecomp--copy-tree x)))
+ (should (equal (prin1-to-string (list x y))
+ "(#1=(#1# a) #2=(#2# a))")))
+ (let* ((x '((a . #1=(b)) #1#))
+ (y (bytecomp--copy-tree x)))
+ (should (equal (prin1-to-string (list x y))
+ "(((a . #1=(b)) #1#) ((a . #2=(b)) #2#))")))
+ (let* ((x '#1=(a #2=(#1# b . #3=(#2# c . #1#)) (#3# d)))
+ (y (bytecomp--copy-tree x)))
+ (should (equal (prin1-to-string (list x y))
+ (concat
+ "("
+ "#1=(a #2=(#1# b . #3=(#2# c . #1#)) (#3# d))"
+ " "
+ "#4=(a #5=(#4# b . #6=(#5# c . #4#)) (#6# d))"
+ ")"))))))
;; Local Variables:
;; no-byte-compile: t