* lisp/emacs-lisp/nadvice.el (advice--member-p): Change second arg.

(advice-function-member-p): Tell it to check both names and functions.
(advice--add-function): Adjust call accordingly.

Fixes: debbugs:17531

lisp/ChangeLog

+2014-05-23  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* emacs-lisp/nadvice.el (advice--member-p): Change second arg.
+	(advice-function-member-p): Tell it to check both names and functions
+	(bug#17531).
+	(advice--add-function): Adjust call accordingly.
+
 2014-05-23  Stephen Berman  <stephen.berman@gmx.net>
 	* calendar/todo-mode.el: Miscellaneous bug fixes.

lisp/emacs-lisp/nadvice.el

@@ -180,12 +180,16 @@ WHERE is a symbol to select an entry in `advice--where-alist'."
         (advice--make-1 (nth 1 desc) (nth 2 desc)
                         function main props)))))
 
-(defun advice--member-p (function name definition)
+(defun advice--member-p (function use-name definition)
   (let ((found nil))
     (while (and (not found) (advice--p definition))
-      (if (if name
-              (equal name (cdr (assq 'name (advice--props definition))))
-            (equal function (advice--car definition)))
+      (if (if (eq use-name :use-both)
+	      (or (equal function
+			 (cdr (assq 'name (advice--props definition))))
+		  (equal function (advice--car definition)))
+	    (equal function (if use-name
+				(cdr (assq 'name (advice--props definition)))
+			      (advice--car definition))))
           (setq found definition)
         (setq definition (advice--cdr definition))))
     found))
@@ -291,7 +295,7 @@ is also interactive.  There are 3 cases:
 ;;;###autoload
 (defun advice--add-function (where ref function props)
   (let* ((name (cdr (assq 'name props)))
-         (a (advice--member-p function name (gv-deref ref))))
+         (a (advice--member-p (or name function) (if name t) (gv-deref ref))))
     (when a
       ;; The advice is already present.  Remove the old one, first.
       (setf (gv-deref ref)
@@ -323,7 +327,7 @@ properties alist that was specified when it was added."
   "Return non-nil if ADVICE is already in FUNCTION-DEF.
 Instead of ADVICE being the actual function, it can also be the `name'
 of the piece of advice."
-  (advice--member-p advice advice function-def))
+  (advice--member-p advice :use-both function-def))
 
 ;;;; Specific application of add-function to `symbol-function' for advice.
 

test/automated/advice-tests.el

@@ -184,6 +184,7 @@ function being an around advice."
         (sm-advice (lambda (x) (if (consp x) (list (* 5 (car x))) (* 4 x)))))
     (should (equal (funcall sm-test10 5) 15))
     (add-function :filter-args (var sm-test10) sm-advice)
+    (should (advice-function-member-p sm-advice sm-test10))
     (should (equal (funcall sm-test10 5) 35))
     (add-function :filter-return (var sm-test10) sm-advice)
     (should (equal (funcall sm-test10 5) 60))