diff options
Diffstat (limited to 'lisp/emacs-lisp')
| -rw-r--r-- | lisp/emacs-lisp/byte-run.el | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/byte-run.el b/lisp/emacs-lisp/byte-run.el index ab7259b667f..5c92f247a05 100644 --- a/lisp/emacs-lisp/byte-run.el +++ b/lisp/emacs-lisp/byte-run.el @@ -114,6 +114,18 @@ was first made obsolete, for example a date or a release number." (put function 'byte-obsolete-info (list new handler when))) function) +(defmacro define-obsolete-function-alias (function new + &optional when docstring) + "Set FUNCTION's function definition to NEW and warn that FUNCTION is obsolete. +If provided, WHEN should be a string indicating when FUNCTION was +first made obsolete, for example a date or a release number. The +optional argument DOCSTRING specifies the documentation string +for FUNCTION; if DOCSTRING is omitted or nil, FUNCTION uses the +documentation string of NEW unluess it already has one." + `(progn + (defalias ,function ,new ,docstring) + (make-obsolete ,function ,new ,when))) + (defun make-obsolete-variable (variable new &optional when) "Make the byte-compiler warn that VARIABLE is obsolete. The warning will say that NEW should be used instead. |