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-rw-r--r--lisp/emacs-lisp/elint.el37
1 files changed, 23 insertions, 14 deletions
diff --git a/lisp/emacs-lisp/elint.el b/lisp/emacs-lisp/elint.el
index 6b66759948c..d6c5ed3a29c 100644
--- a/lisp/emacs-lisp/elint.el
+++ b/lisp/emacs-lisp/elint.el
@@ -145,7 +145,7 @@ This environment can be passed to `macroexpand'."
;; ** top form ** header...
(let ((elint-top-form-logged t))
(elint-log-message "\nLinting complete.\n")))
-
+
(defun elint-defun ()
"Lint the function at point."
(interactive)
@@ -193,7 +193,7 @@ Returns the forms."
(elint-init-env elint-buffer-forms))
(set (make-local-variable 'elint-last-env-time) (buffer-modified-tick))
elint-buffer-forms))
-
+
(defun elint-get-top-forms ()
"Collect all the top forms in the current buffer."
(save-excursion
@@ -271,7 +271,7 @@ Returns nil if there are no more forms, T otherwise."
(ding)
(message "Can't get variables from require'd library %s" name)))
env)
-
+
(defun regexp-assoc (regexp alist)
"Search for a key matching REGEXP in ALIST."
(let ((res nil))
@@ -312,11 +312,11 @@ Returns nil if there are no more forms, T otherwise."
(defmacro . elint-check-defun-form)
(defvar . elint-check-defvar-form)
(defconst . elint-check-defvar-form)
- (defcustom . elint-check-defvar-form)
+ (defcustom . elint-check-defcustom-form)
(macro . elint-check-macro-form)
(condition-case . elint-check-condition-case-form))
"Functions to call when some special form should be linted.")
-
+
(defun elint-form (form env)
"Lint FORM in the environment ENV.
The environment created by the form is returned."
@@ -334,9 +334,9 @@ The environment created by the form is returned."
((eq args 'undefined)
(setq argsok nil)
(elint-error "Call to undefined function: %s" form))
-
+
((eq args 'unknown) nil)
-
+
(t (setq argsok (elint-match-args form args))))
;; Is this a macro?
@@ -526,7 +526,7 @@ CODE can be a lambda expression, a macro, or byte-compiled code."
(if (symbolp sym)
(setq newenv (elint-env-add-var newenv sym))))
newenv))
-
+
(defun elint-check-defvar-form (form env)
"Lint the defvar/defconst FORM in ENV."
(if (or (= (length form) 2)
@@ -536,7 +536,16 @@ CODE can be a lambda expression, a macro, or byte-compiled code."
(car (cdr form)))
(elint-error "Malformed variable declaration: %s" form)
env))
-
+
+(defun elint-check-defcustom-form (form env)
+ "Lint the defcustom FORM in ENV."
+ (if (and (> (length form) 3)
+ (evenp (length form))) ; even no. of keyword/value args
+ (elint-env-add-global-var (elint-form (nth 2 form) env)
+ (car (cdr form)))
+ (elint-error "Malformed variable declaration: %s" form)
+ env))
+
(defun elint-check-function-form (form env)
"Lint the function FORM in ENV."
(let ((func (car (cdr-safe form))))
@@ -591,7 +600,7 @@ CODE can be a lambda expression, a macro, or byte-compiled code."
(setq errforms (cdr errforms))
)))
resenv))
-
+
;;;
;;; Message functions
;;;
@@ -605,7 +614,7 @@ STRING and ARGS are thrown on `format' to get the message."
(let ((errstr (apply 'format string args)))
(elint-log-message errstr)
))
-
+
(defun elint-warning (string &rest args)
"Report an linting warning.
STRING and ARGS are thrown on `format' to get the message."
@@ -668,11 +677,11 @@ Insert HEADER followed by a blank line if non-nil."
(setq truncate-lines t)
(set-buffer oldbuf)))
)))
-
+
;;;
;;; Initializing code
;;;
-
+
;;;###autoload
(defun elint-initialize ()
"Initialize elint."
@@ -733,7 +742,7 @@ If no documentation could be found args will be `unknown'."
point-before-scroll require-final-newline selective-display
selective-display-ellipses tab-width truncate-lines vc-mode)
"Standard buffer local vars.")
-
+
(defconst elint-unknown-builtin-args
'((while test &rest forms)
(insert-before-markers-and-inherit &rest text)