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CC Mode: Eliminate compiler warning messages.

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* lisp/progmodes/cc-mode.el (top level): remove compile time declaration of
`font-lock-syntactic-keywords' (which CC Mode doesn't use).
* lisp/progmodes/cc-awk.el (awk-mode-syntax-table)
(c-awk-set-syntax-table-properties): Clarify comments about
`font-lock-syntactic-keywords'.

* lisp/progmodes/cc-bytecomp.el (cc-bytecomp-load): Create a dummy declaration
of this before the real (interpreted) one, to satisfy the byte compiler.
This commit is contained in:
Alan Mackenzie 2015-11-24 22:20:47 +00:00
parent 0805069ae5
commit fdc271fab0
3 changed files with 17 additions and 10 deletions
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19
lisp/progmodes/cc-awk.el
View file

@ -72,7 +72,7 @@
(modify-syntax-entry ?\# "< " st)
;; / can delimit regexes or be a division operator. By default we assume
;; that it is a division sign, and fix the regexp operator cases with
;; `font-lock-syntactic-keywords'.
;; `c-awk-set-syntax-table-properties'.
(modify-syntax-entry ?/ "." st) ; ACM 2002/4/27.
(modify-syntax-entry ?* "." st)
(modify-syntax-entry ?+ "." st)
@ -785,13 +785,16 @@
;; Scan the buffer text between point and LIM, setting (and clearing) the
;; syntax-table property where necessary.
;;
;; This function is designed to be called as the FUNCTION in a MATCHER in
;; font-lock-syntactic-keywords, and it always returns NIL (to inhibit
;; repeated calls from font-lock: See elisp info page "Search-based
;; Fontification"). It also gets called, with a bit of glue, from
;; after-change-functions when font-lock isn't active. Point is left
;; "undefined" after this function exits. THE BUFFER SHOULD HAVE BEEN
;; WIDENED, AND ANY PRECIOUS MATCH-DATA SAVED BEFORE CALLING THIS ROUTINE.
;; This function is designed to be called as the FUNCTION in a MATCHER
;; in font-lock-syntactic-keywords, and it always returns NIL (to
;; inhibit repeated calls from font-lock: See elisp info page
;; "Search-based Fontification"). (2015-11-24: CC Mode doesn't use
;; `font-lock-syntactic-keywords' and hasn't done for a very long
;; time, if ever. ACM.) This function gets called, with a bit of
;; glue, from after-change-functions whether or not font-lock is
;; active. Point is left "undefined" after this function exits. THE
;; BUFFER SHOULD HAVE BEEN WIDENED, AND ANY PRECIOUS MATCH-DATA SAVED
;; BEFORE CALLING THIS ROUTINE.
;;
;; We need to set/clear the syntax-table property on:
;; (i) / - It is set to "string" on a / which is the opening or closing

5
lisp/progmodes/cc-bytecomp.el
View file

@ -252,6 +252,11 @@ perhaps a `cc-bytecomp-restore-environment' is forgotten somewhere"))
(cc-bytecomp-debug-msg
"cc-bytecomp-restore-environment: Done"))))
(defun cc-bytecomp-load (cc-part)
;; A dummy function which will immediately be overwritten by the
;; following at load time. This should suppress the byte compiler
;; error that the function is "not known to be defined".
)
(eval
;; This eval is to avoid byte compilation of the function below.
;; There's some bug in XEmacs 21.4.6 that can cause it to dump core

3
lisp/progmodes/cc-mode.el
View file

@ -99,10 +99,9 @@
(cc-bytecomp-defvar adaptive-fill-first-line-regexp) ; Emacs
(cc-bytecomp-defun run-mode-hooks) ; Emacs 21.1
;; We set these variables during mode init, yet we don't require
;; We set this variable during mode init, yet we don't require
;; font-lock.
(cc-bytecomp-defvar font-lock-defaults)
(cc-bytecomp-defvar font-lock-syntactic-keywords)
;; Menu support for both XEmacs and Emacs. If you don't have easymenu
;; with your version of Emacs, you are incompatible!