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-rw-r--r--lisp/emacs-lisp/bytecomp.el29
1 files changed, 29 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
index 5fa7389e431..9e14c91c953 100644
--- a/lisp/emacs-lisp/bytecomp.el
+++ b/lisp/emacs-lisp/bytecomp.el
@@ -1572,6 +1572,7 @@ extra args."
;; macroenvironment.
(copy-alist byte-compile-initial-macro-environment))
(byte-compile--outbuffer nil)
+ (overriding-plist-environment nil)
(byte-compile-function-environment nil)
(byte-compile-bound-variables nil)
(byte-compile-lexical-variables nil)
@@ -4714,6 +4715,34 @@ binding slots have been popped."
'byte-hunk-handler 'byte-compile-form-make-variable-buffer-local)
(defun byte-compile-form-make-variable-buffer-local (form)
(byte-compile-keep-pending form 'byte-compile-normal-call))
+
+(put 'function-put 'byte-hunk-handler 'byte-compile-define-symbol-prop)
+(put 'define-symbol-prop 'byte-hunk-handler 'byte-compile-define-symbol-prop)
+(defun byte-compile-define-symbol-prop (form)
+ (pcase form
+ ((and `(,op ,fun ,prop ,val)
+ (guard (and (macroexp-const-p fun)
+ (macroexp-const-p prop)
+ (or (macroexp-const-p val)
+ ;; Also accept anonymous functions, since
+ ;; we're at top-level which implies they're
+ ;; also constants.
+ (pcase val (`(function (lambda . ,_)) t))))))
+ (byte-compile-push-constant op)
+ (byte-compile-form fun)
+ (byte-compile-form prop)
+ (let* ((fun (eval fun))
+ (prop (eval prop))
+ (val (if (macroexp-const-p val)
+ (eval val)
+ (byte-compile-lambda (cadr val)))))
+ (push `(,fun
+ . (,prop ,val ,@(alist-get fun overriding-plist-environment)))
+ overriding-plist-environment)
+ (byte-compile-push-constant val)
+ (byte-compile-out 'byte-call 3)))
+
+ (_ (byte-compile-keep-pending form))))
;;; tags