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(declare-function): New macro.

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This commit is contained in:
Glenn Morris 2007-11-17 03:45:17 +00:00
parent 43ab13de0b
commit aefbd1608c
1 changed files with 19 additions and 0 deletions
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19
lisp/emacs-lisp/byte-run.el
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@ -103,6 +103,25 @@ The return value of this function is not used."
(eval-and-compile
(put ',name 'byte-optimizer 'byte-compile-inline-expand))))
(defmacro declare-function (fn file &optional arglist)
"Tell the byte-compiler that function FN is defined, in FILE.
Optional ARGLIST is the argument list used by the function. The
FILE argument is not used by the byte-compiler, but by the
`check-declare' package, which checks that FILE contains a
definition for FN. FILE should be either absolute, or relative
to the location of the file containing the declaration. ARGLIST
is used by both the byte-compiler and `check-declare' to check
for consistency.
Note that for the purposes of `check-declare', this statement
must be the first non-whitespace on a line, and everything up to
the end of FILE must be all on the same line. For example:
\(declare-function c-end-of-defun \"progmodes/cc-cmds.el\"
\(&optional arg))"
;; Does nothing - byte-compile-declare-function does the work.
)
(defun make-obsolete (obsolete-name current-name &optional when)
"Make the byte-compiler warn that OBSOLETE-NAME is obsolete.
The warning will say that CURRENT-NAME should be used instead.