* lisp/emacs-lisp/byte-run.el (function-put): New function.

(defun-declarations-alist): Use it.  Add `pure' and `side-effect-free'.
* lisp/emacs-lisp/cl-macs.el (cl-defstruct, cl-struct-sequence-type)
(cl-struct-slot-info, cl-struct-slot-offset, cl-struct-slot-value):
Use them.

1 files changed, 7 insertions, 2 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 24f96ee68f7..3f9c47b33f3 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -95,9 +95,14 @@ active region handling.
 
 * Lisp Changes in Emacs 24.5
 
+** New function `function-put' to use instead of `put' for function properties.
+
 +++
-** You can specify a function's interactive-only property via `declare'.
-However you specify it, the property affects `describe-function' output.
+** New properties that can be specified with `declare':
+*** (interactive-only INSTEAD), tells to use INSTEAD for non-interactive use.
+*** (pure VAL), if VAL is non-nil, indicates the function is pure.
+*** (side-effect-free VAL), if VAL is non-nil, indicates the function does not
+have side effects.
 
 ** You can access the slots of structures using `cl-struct-slot-value'.