diff options
Diffstat (limited to 'lisp/emacs-lisp/macroexp.el')
| -rw-r--r-- | lisp/emacs-lisp/macroexp.el | 40 |
1 files changed, 27 insertions, 13 deletions
diff --git a/lisp/emacs-lisp/macroexp.el b/lisp/emacs-lisp/macroexp.el index dafd5497639..11204f7f7fb 100644 --- a/lisp/emacs-lisp/macroexp.el +++ b/lisp/emacs-lisp/macroexp.el @@ -32,11 +32,11 @@ ;; macros defined by `defmacro'. (defvar macroexpand-all-environment nil) -(defvar byte-compile--ssp-conses-seen nil +(defvar macroexp--ssp-conses-seen nil "Which conses have been processed in a strip-symbol-positions operation?") -(defvar byte-compile--ssp-vectors-seen nil +(defvar macroexp--ssp-vectors-seen nil "Which vectors have been processed in a strip-symbol-positions operation?") -(defvar byte-compile--ssp-records-seen nil +(defvar macroexp--ssp-records-seen nil "Which records have been processed in a strip-symbol-positions operation?") (defun macroexp--strip-s-p-2 (arg) @@ -46,8 +46,10 @@ Return the modified ARG." ((symbolp arg) (bare-symbol arg)) ((consp arg) - (unless (memq arg byte-compile--ssp-conses-seen) - ;; (push arg byte-compile--ssp-conses-seen) + (unless (and macroexp--ssp-conses-seen + (gethash arg macroexp--ssp-conses-seen)) + (if macroexp--ssp-conses-seen + (puthash arg t macroexp--ssp-conses-seen)) (let ((a arg)) (while (consp (cdr a)) (setcar a (macroexp--strip-s-p-2 (car a))) @@ -58,8 +60,10 @@ Return the modified ARG." (setcdr a (macroexp--strip-s-p-2 (cdr a)))))) arg) ((vectorp arg) - (unless (memq arg byte-compile--ssp-vectors-seen) - (push arg byte-compile--ssp-vectors-seen) + (unless (and macroexp--ssp-vectors-seen + (gethash arg macroexp--ssp-vectors-seen)) + (if macroexp--ssp-vectors-seen + (puthash arg t macroexp--ssp-vectors-seen)) (let ((i 0) (len (length arg))) (while (< i len) @@ -67,8 +71,10 @@ Return the modified ARG." (setq i (1+ i))))) arg) ((recordp arg) - (unless (memq arg byte-compile--ssp-records-seen) - (push arg byte-compile--ssp-records-seen) + (unless (and macroexp--ssp-records-seen + (gethash arg macroexp--ssp-records-seen)) + (if macroexp--ssp-records-seen + (puthash arg t macroexp--ssp-records-seen)) (let ((i 0) (len (length arg))) (while (< i len) @@ -80,10 +86,18 @@ Return the modified ARG." (defun byte-compile-strip-s-p-1 (arg) "Strip all positions from symbols in ARG, destructively modifying ARG. Return the modified ARG." - (setq byte-compile--ssp-conses-seen nil) - (setq byte-compile--ssp-vectors-seen nil) - (setq byte-compile--ssp-records-seen nil) - (macroexp--strip-s-p-2 arg)) + (condition-case err + (progn + (setq macroexp--ssp-conses-seen nil) + (setq macroexp--ssp-vectors-seen nil) + (setq macroexp--ssp-records-seen nil) + (macroexp--strip-s-p-2 arg)) + (recursion-error + (dolist (tab '(macroexp--ssp-conses-seen macroexp--ssp-vectors-seen + macroexp--ssp-records-seen)) + (set tab (make-hash-table :test 'eq))) + (macroexp--strip-s-p-2 arg)) + (error (signal (car err) (cdr err))))) (defun macroexp-strip-symbol-positions (arg) "Strip all positions from symbols (recursively) in ARG. Don't modify ARG." |