[elpa] 15/16: * packages/js2-mode/js2-imenu-extras.el: Use Unix-style EOL.

[Stefan Monnier]

monnier pushed a commit to branch master
in repository elpa.

commit 3494f28aecf59ee351cdb0fa61b7bed0597cc1c5
Author: Stefan Monnier <address@hidden>
Date:   Wed Oct 15 16:44:34 2014 -0400

    * packages/js2-mode/js2-imenu-extras.el: Use Unix-style EOL.
---
 packages/js2-mode/js2-imenu-extras.el |  583 ++++++++++++++++-----------------
 1 files changed, 291 insertions(+), 292 deletions(-)

diff --git a/packages/js2-mode/js2-imenu-extras.el 
b/packages/js2-mode/js2-imenu-extras.el
index 3052caf..6b646e2 100644
--- a/packages/js2-mode/js2-imenu-extras.el
+++ b/packages/js2-mode/js2-imenu-extras.el
@@ -1,292 +1,291 @@
-;;; js2-imenu-extras.el --- Imenu support for additional constructs
-
-;; Copyright (C) 2012-2014  Free Software Foundation, Inc.
-
-;; Author:    Dmitry Gutov <address@hidden>
-;; Keywords:  languages, javascript, imenu
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; This package adds Imenu support for additional framework constructs and
-;; structural patterns to `js2-mode'.
-
-;; Usage:
-
-;; (add-hook 'js2-mode-hook 'js2-imenu-extras-mode)
-
-;; To customize how it works:
-;;   M-x customize-group RET js2-imenu RET
-
-(eval-when-compile
-  (require 'cl))
-
-(require 'js2-mode)
-
-(defconst js2-imenu-extension-styles
-  `((:framework jquery
-     :call-re   "\\_<\\(?:jQuery\\|\\$\\|_\\)\\.extend\\s-*("
-     :recorder  js2-imenu-record-jquery-extend)
-
-    (:framework jquery-ui
-     :call-re   "^\\s-*\\(?:jQuery\\|\\$\\)\\.widget\\s-*("
-     :recorder  js2-imenu-record-string-declare)
-
-    (:framework dojo
-     :call-re   "^\\s-*dojo.declare\\s-*("
-     :recorder  js2-imenu-record-string-declare)
-
-    (:framework backbone
-     :call-re   ,(concat "\\_<" js2-mode-identifier-re "\\.extend\\s-*(")
-     :recorder  js2-imenu-record-backbone-extend)
-
-    (:framework enyo
-     :call-re   "\\_<enyo\\.kind\\s-*("
-     :recorder  js2-imenu-record-enyo-kind))
-  "List of JavaScript class definition or extension styles.
-
-:framework is a valid value in `js2-imenu-enabled-frameworks'.
-
-:call-re is a regular expression that has no capturing groups.
-
-:recorder is a function name that will be called when the regular
-expression matches some text in the buffer.  When it's called, point will be
-at the end of the match.  The function must keep the point position.")
-
-(defconst js2-imenu-available-frameworks
-  (mapcar (lambda (style) (plist-get style :framework)) 
js2-imenu-extension-styles)
-  "List of available JavaScript framework symbols.")
-
-(defcustom js2-imenu-enabled-frameworks js2-imenu-available-frameworks
-  "Frameworks to be recognized by `js2-mode'."
-  :type (cons 'set (mapcar (lambda (x) (list 'const x))
-                           js2-imenu-available-frameworks))
-  :group 'js2-imenu)
-
-(defcustom js2-imenu-show-other-functions t
-  "Non-nil to show functions not recognized by other mechanisms,
-in a shared namespace."
-  :type 'boolean
-  :group 'js2-imenu)
-
-(defcustom js2-imenu-other-functions-ns "?"
-  "Namespace name to use for other functions."
-  :type 'string
-  :group 'js2-imenu)
-
-(defcustom js2-imenu-show-module-pattern t
-  "Non-nil to recognize the module pattern:
-
-var foobs = (function(a) {
-  return {fib: function() {}, fub: function() {}};
-})(b);
-
-We record the returned hash as belonging to the named module, and
-prefix any functions defined inside the IIFE with the module name."
-  :type 'boolean
-  :group 'js2-imenu)
-
-(defcustom js2-imenu-split-string-identifiers t
-  "When non-nil, split string identifiers on dots.
-Currently used for jQuery widgets, Dojo and Enyo declarations."
-  :type 'boolean
-  :group 'js2-imenu)
-
-;;;###autoload
-(defun js2-imenu-extras-setup ()
-  (when js2-imenu-enabled-frameworks
-    (add-hook 'js2-post-parse-callbacks 'js2-imenu-record-declarations t t))
-  (when (or js2-imenu-show-other-functions js2-imenu-show-module-pattern)
-    (add-hook 'js2-post-parse-callbacks 'js2-imenu-walk-ast t t)))
-
-(defun js2-imenu-extras-remove ()
-  (remove-hook 'js2-post-parse-callbacks 'js2-imenu-record-declarations t)
-  (remove-hook 'js2-post-parse-callbacks 'js2-imenu-walk-ast t))
-
-(defun js2-imenu-record-declarations ()
-  (let* ((styles (loop for style in js2-imenu-extension-styles
-                       when (memq (plist-get style :framework)
-                                  js2-imenu-enabled-frameworks)
-                       collect style))
-         (re (mapconcat (lambda (style)
-                          (concat "\\(" (plist-get style :call-re) "\\)"))
-                        styles "\\|")))
-    (goto-char (point-min))
-    (while (js2-re-search-forward re nil t)
-      (loop for i from 0 to (1- (length styles))
-            when (match-beginning (1+ i))
-            return (funcall (plist-get (nth i styles) :recorder))))))
-
-(defun js2-imenu-record-jquery-extend ()
-  (let ((pred (lambda (subject)
-                (and
-                 (js2-prop-get-node-p subject)
-                 (string= (js2-name-node-name (js2-prop-get-node-right 
subject))
-                          "prototype")))))
-    (js2-imenu-record-extend-first-arg (1- (point)) pred
-                                       'js2-compute-nested-prop-get)))
-
-(defun js2-imenu-record-string-declare ()
-  (js2-imenu-record-extend-first-arg
-   (1- (point)) 'js2-string-node-p
-   (lambda (node)
-     (if js2-imenu-split-string-identifiers
-         (split-string (js2-string-node-value node) "\\." t)
-       (list (js2-string-node-value node))))))
-
-(defun js2-imenu-record-extend-first-arg (point pred qname-fn)
-  (let* ((node (js2-node-at-point point))
-         (args (js2-call-node-args node))
-         (subject (first args)))
-    (when (funcall pred subject)
-      (loop for arg in (cdr args)
-            when (js2-object-node-p arg)
-            do (js2-record-object-literal
-                arg (funcall qname-fn subject) (js2-node-abs-pos arg))))))
-
-(defun js2-imenu-record-backbone-extend ()
-  (let* ((node (js2-node-at-point (1- (point))))
-         (args (js2-call-node-args node))
-         (methods (first args))
-         (parent (js2-node-parent node)))
-    (when (js2-object-node-p methods)
-      (let ((subject (cond ((js2-var-init-node-p parent)
-                            (js2-var-init-node-target parent))
-                           ((js2-assign-node-p parent)
-                            (js2-assign-node-left parent)))))
-        (when subject
-          (js2-record-object-literal methods
-                                     (js2-compute-nested-prop-get subject)
-                                     (js2-node-abs-pos methods)))))))
-
-(defun js2-imenu-record-enyo-kind ()
-  (let* ((node (js2-node-at-point (1- (point))))
-         (args (js2-call-node-args node))
-         (options (first args)))
-    (when (js2-object-node-p options)
-      (let ((name-value
-             (loop for elem in (js2-object-node-elems options)
-                   thereis
-                   (let ((key (js2-object-prop-node-left elem))
-                         (value (js2-object-prop-node-right elem)))
-                     (when (and (equal
-                                 (cond ((js2-name-node-p key)
-                                        (js2-name-node-name key))
-                                       ((js2-string-node-p key)
-                                        (js2-string-node-value key)))
-                                 "name")
-                                (js2-string-node-p value))
-                       (js2-string-node-value value))))))
-        (when name-value
-          (js2-record-object-literal options
-                                     (if js2-imenu-split-string-identifiers
-                                         (split-string name-value "\\.")
-                                       (list name-value))
-                                     (js2-node-abs-pos options)))))))
-
-(defun js2-imenu-walk-ast ()
-  (js2-visit-ast
-   js2-mode-ast
-   (lambda (node end-p)
-     (unless end-p
-       (cond
-        ((and js2-imenu-show-other-functions
-              (js2-object-prop-node-p node))
-         (js2-imenu-record-orphan-function node))
-        ((and js2-imenu-show-module-pattern
-              (js2-assign-node-p node))
-         (js2-imenu-record-module-pattern node)))
-       t))))
-
-(defun js2-imenu-parent-key-names (node)
-  "Get the list of parent key names of NODE.
-
-For example, for code
-
-  {rules: {password: {required: function() {}}}}
-
-when NODE is the inner `js2-object-prop-mode',
-it returns `(\"rules\" \"password\")'."
-  (let (rlt (n node))
-    (while (setq n (js2-imenu-parent-prop-node n))
-      (push (js2-prop-node-name (js2-object-prop-node-left n)) rlt))
-    rlt))
-
-(defun js2-imenu-parent-prop-node (node)
-  "When the parent of NODE is `js2-object-node',
-and the grandparent is `js2-object-prop-node',
-return the grandparent."
-  ;; Suppose the code is:
-  ;; {parent-key: {required: function() {}}}
-  ;; NODE is `required: function() {}'.
-  (let (p2 p3)
-    ;; Parent is `{required: function() {}}'.
-    (setq p2 (js2-node-parent node))
-    ;; GP is `parent-key: {required: function() {}}'.
-    (when (and p2 (js2-object-node-p p2))
-      (setq p3 (js2-node-parent p2))
-      (if (and p3 (js2-object-prop-node-p p3)) p3))))
-
-(defun js2-imenu-record-orphan-function (node)
-  "Record orphan function when it's the value of NODE.
-NODE must be `js2-object-prop-node'."
-  (when (js2-function-node-p (js2-object-prop-node-right node))
-    (let ((fn-node (js2-object-prop-node-right node)))
-      (unless (and js2-imenu-function-map
-                   (gethash fn-node js2-imenu-function-map))
-        (let ((key-node (js2-object-prop-node-left node))
-              (parent-prop-node (js2-imenu-parent-prop-node node))
-              chain)
-          (setq chain (nconc (js2-imenu-parent-key-names node)
-                             (list (js2-prop-node-name key-node))))
-          (push js2-imenu-other-functions-ns chain)
-          (js2-record-imenu-entry fn-node chain
-                                  (js2-node-abs-pos key-node)))))))
-
-(defun js2-imenu-record-module-pattern (node)
-  "Recognize and record module pattern use instance.
-NODE must be `js2-assign-node'."
-  (let ((init (js2-assign-node-right node)))
-    (when (js2-call-node-p init)
-      (let ((target (js2-assign-node-left node))
-            (callt (js2-call-node-target init)))
-        ;; Just basic call form: (function() {...})();
-        ;; TODO: Handle variations without duplicating 
`js2-wrapper-function-p'?
-        (when (and (js2-paren-node-p callt)
-                   (js2-function-node-p (js2-paren-node-expr callt)))
-          (let* ((fn (js2-paren-node-expr callt))
-                 (blk (js2-function-node-body fn))
-                 (ret (car (last (js2-block-node-kids blk)))))
-            (when (and (js2-return-node-p ret)
-                       (js2-object-node-p (js2-return-node-retval ret)))
-              ;; TODO: Map function names when revealing module pattern is 
used.
-              (let ((retval (js2-return-node-retval ret))
-                    (target-qname (js2-compute-nested-prop-get target)))
-                (js2-record-object-literal retval target-qname
-                                           (js2-node-abs-pos retval))
-                (js2-record-imenu-entry fn target-qname
-                                        (js2-node-abs-pos target))))))))))
-
-;;;###autoload
-(define-minor-mode js2-imenu-extras-mode
-  "Toggle Imenu support for frameworks and structural patterns."
-  :lighter ""
-  (if js2-imenu-extras-mode
-      (js2-imenu-extras-setup)
-    (js2-imenu-extras-remove)))
-
-(provide 'js2-imenu-extras)
+;;; js2-imenu-extras.el --- Imenu support for additional constructs
+
+;; Copyright (C) 2012-2014  Free Software Foundation, Inc.
+
+;; Author:    Dmitry Gutov <address@hidden>
+;; Keywords:  languages, javascript, imenu
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This package adds Imenu support for additional framework constructs and
+;; structural patterns to `js2-mode'.
+
+;; Usage:
+
+;; (add-hook 'js2-mode-hook 'js2-imenu-extras-mode)
+
+;; To customize how it works:
+;;   M-x customize-group RET js2-imenu RET
+
+(eval-when-compile
+  (require 'cl))
+
+(require 'js2-mode)
+
+(defconst js2-imenu-extension-styles
+  `((:framework jquery
+     :call-re   "\\_<\\(?:jQuery\\|\\$\\|_\\)\\.extend\\s-*("
+     :recorder  js2-imenu-record-jquery-extend)
+
+    (:framework jquery-ui
+     :call-re   "^\\s-*\\(?:jQuery\\|\\$\\)\\.widget\\s-*("
+     :recorder  js2-imenu-record-string-declare)
+
+    (:framework dojo
+     :call-re   "^\\s-*dojo.declare\\s-*("
+     :recorder  js2-imenu-record-string-declare)
+
+    (:framework backbone
+     :call-re   ,(concat "\\_<" js2-mode-identifier-re "\\.extend\\s-*(")
+     :recorder  js2-imenu-record-backbone-extend)
+
+    (:framework enyo
+     :call-re   "\\_<enyo\\.kind\\s-*("
+     :recorder  js2-imenu-record-enyo-kind))
+  "List of JavaScript class definition or extension styles.
+
+:framework is a valid value in `js2-imenu-enabled-frameworks'.
+
+:call-re is a regular expression that has no capturing groups.
+
+:recorder is a function name that will be called when the regular
+expression matches some text in the buffer.  When it's called, point will be
+at the end of the match.  The function must keep the point position.")
+
+(defconst js2-imenu-available-frameworks
+  (mapcar (lambda (style) (plist-get style :framework)) 
js2-imenu-extension-styles)
+  "List of available JavaScript framework symbols.")
+
+(defcustom js2-imenu-enabled-frameworks js2-imenu-available-frameworks
+  "Frameworks to be recognized by `js2-mode'."
+  :type (cons 'set (mapcar (lambda (x) (list 'const x))
+                           js2-imenu-available-frameworks))
+  :group 'js2-imenu)
+
+(defcustom js2-imenu-show-other-functions t
+  "Non-nil to show functions not recognized by other mechanisms,
+in a shared namespace."
+  :type 'boolean
+  :group 'js2-imenu)
+
+(defcustom js2-imenu-other-functions-ns "?"
+  "Namespace name to use for other functions."
+  :type 'string
+  :group 'js2-imenu)
+
+(defcustom js2-imenu-show-module-pattern t
+  "Non-nil to recognize the module pattern:
+
+var foobs = (function(a) {
+  return {fib: function() {}, fub: function() {}};
+})(b);
+
+We record the returned hash as belonging to the named module, and
+prefix any functions defined inside the IIFE with the module name."
+  :type 'boolean
+  :group 'js2-imenu)
+
+(defcustom js2-imenu-split-string-identifiers t
+  "When non-nil, split string identifiers on dots.
+Currently used for jQuery widgets, Dojo and Enyo declarations."
+  :type 'boolean
+  :group 'js2-imenu)
+
+;;;###autoload
+(defun js2-imenu-extras-setup ()
+  (when js2-imenu-enabled-frameworks
+    (add-hook 'js2-post-parse-callbacks 'js2-imenu-record-declarations t t))
+  (when (or js2-imenu-show-other-functions js2-imenu-show-module-pattern)
+    (add-hook 'js2-post-parse-callbacks 'js2-imenu-walk-ast t t)))
+
+(defun js2-imenu-extras-remove ()
+  (remove-hook 'js2-post-parse-callbacks 'js2-imenu-record-declarations t)
+  (remove-hook 'js2-post-parse-callbacks 'js2-imenu-walk-ast t))
+
+(defun js2-imenu-record-declarations ()
+  (let* ((styles (loop for style in js2-imenu-extension-styles
+                       when (memq (plist-get style :framework)
+                                  js2-imenu-enabled-frameworks)
+                       collect style))
+         (re (mapconcat (lambda (style)
+                          (concat "\\(" (plist-get style :call-re) "\\)"))
+                        styles "\\|")))
+    (goto-char (point-min))
+    (while (js2-re-search-forward re nil t)
+      (loop for i from 0 to (1- (length styles))
+            when (match-beginning (1+ i))
+            return (funcall (plist-get (nth i styles) :recorder))))))
+
+(defun js2-imenu-record-jquery-extend ()
+  (let ((pred (lambda (subject)
+                (and
+                 (js2-prop-get-node-p subject)
+                 (string= (js2-name-node-name (js2-prop-get-node-right 
subject))
+                          "prototype")))))
+    (js2-imenu-record-extend-first-arg (1- (point)) pred
+                                       'js2-compute-nested-prop-get)))
+
+(defun js2-imenu-record-string-declare ()
+  (js2-imenu-record-extend-first-arg
+   (1- (point)) 'js2-string-node-p
+   (lambda (node)
+     (if js2-imenu-split-string-identifiers
+         (split-string (js2-string-node-value node) "\\." t)
+       (list (js2-string-node-value node))))))
+
+(defun js2-imenu-record-extend-first-arg (point pred qname-fn)
+  (let* ((node (js2-node-at-point point))
+         (args (js2-call-node-args node))
+         (subject (first args)))
+    (when (funcall pred subject)
+      (loop for arg in (cdr args)
+            when (js2-object-node-p arg)
+            do (js2-record-object-literal
+                arg (funcall qname-fn subject) (js2-node-abs-pos arg))))))
+
+(defun js2-imenu-record-backbone-extend ()
+  (let* ((node (js2-node-at-point (1- (point))))
+         (args (js2-call-node-args node))
+         (methods (first args))
+         (parent (js2-node-parent node)))
+    (when (js2-object-node-p methods)
+      (let ((subject (cond ((js2-var-init-node-p parent)
+                            (js2-var-init-node-target parent))
+                           ((js2-assign-node-p parent)
+                            (js2-assign-node-left parent)))))
+        (when subject
+          (js2-record-object-literal methods
+                                     (js2-compute-nested-prop-get subject)
+                                     (js2-node-abs-pos methods)))))))
+
+(defun js2-imenu-record-enyo-kind ()
+  (let* ((node (js2-node-at-point (1- (point))))
+         (args (js2-call-node-args node))
+         (options (first args)))
+    (when (js2-object-node-p options)
+      (let ((name-value
+             (loop for elem in (js2-object-node-elems options)
+                   thereis
+                   (let ((key (js2-object-prop-node-left elem))
+                         (value (js2-object-prop-node-right elem)))
+                     (when (and (equal
+                                 (cond ((js2-name-node-p key)
+                                        (js2-name-node-name key))
+                                       ((js2-string-node-p key)
+                                        (js2-string-node-value key)))
+                                 "name")
+                                (js2-string-node-p value))
+                       (js2-string-node-value value))))))
+        (when name-value
+          (js2-record-object-literal options
+                                     (if js2-imenu-split-string-identifiers
+                                         (split-string name-value "\\.")
+                                       (list name-value))
+                                     (js2-node-abs-pos options)))))))
+
+(defun js2-imenu-walk-ast ()
+  (js2-visit-ast
+   js2-mode-ast
+   (lambda (node end-p)
+     (unless end-p
+       (cond
+        ((and js2-imenu-show-other-functions
+              (js2-object-prop-node-p node))
+         (js2-imenu-record-orphan-function node))
+        ((and js2-imenu-show-module-pattern
+              (js2-assign-node-p node))
+         (js2-imenu-record-module-pattern node)))
+       t))))
+
+(defun js2-imenu-parent-key-names (node)
+  "Get the list of parent key names of NODE.
+
+For example, for code
+
+  {rules: {password: {required: function() {}}}}
+
+when NODE is the inner `js2-object-prop-mode',
+it returns `(\"rules\" \"password\")'."
+  (let (rlt (n node))
+    (while (setq n (js2-imenu-parent-prop-node n))
+      (push (js2-prop-node-name (js2-object-prop-node-left n)) rlt))
+    rlt))
+
+(defun js2-imenu-parent-prop-node (node)
+  "When the parent of NODE is `js2-object-node',
+and the grandparent is `js2-object-prop-node',
+return the grandparent."
+  ;; Suppose the code is:
+  ;; {parent-key: {required: function() {}}}
+  ;; NODE is `required: function() {}'.
+  (let (p2 p3)
+    ;; Parent is `{required: function() {}}'.
+    (setq p2 (js2-node-parent node))
+    ;; GP is `parent-key: {required: function() {}}'.
+    (when (and p2 (js2-object-node-p p2))
+      (setq p3 (js2-node-parent p2))
+      (if (and p3 (js2-object-prop-node-p p3)) p3))))
+
+(defun js2-imenu-record-orphan-function (node)
+  "Record orphan function when it's the value of NODE.
+NODE must be `js2-object-prop-node'."
+  (when (js2-function-node-p (js2-object-prop-node-right node))
+    (let ((fn-node (js2-object-prop-node-right node)))
+      (unless (and js2-imenu-function-map
+                   (gethash fn-node js2-imenu-function-map))
+        (let ((key-node (js2-object-prop-node-left node))
+              chain)
+          (setq chain (nconc (js2-imenu-parent-key-names node)
+                             (list (js2-prop-node-name key-node))))
+          (push js2-imenu-other-functions-ns chain)
+          (js2-record-imenu-entry fn-node chain
+                                  (js2-node-abs-pos key-node)))))))
+
+(defun js2-imenu-record-module-pattern (node)
+  "Recognize and record module pattern use instance.
+NODE must be `js2-assign-node'."
+  (let ((init (js2-assign-node-right node)))
+    (when (js2-call-node-p init)
+      (let ((target (js2-assign-node-left node))
+            (callt (js2-call-node-target init)))
+        ;; Just basic call form: (function() {...})();
+        ;; TODO: Handle variations without duplicating 
`js2-wrapper-function-p'?
+        (when (and (js2-paren-node-p callt)
+                   (js2-function-node-p (js2-paren-node-expr callt)))
+          (let* ((fn (js2-paren-node-expr callt))
+                 (blk (js2-function-node-body fn))
+                 (ret (car (last (js2-block-node-kids blk)))))
+            (when (and (js2-return-node-p ret)
+                       (js2-object-node-p (js2-return-node-retval ret)))
+              ;; TODO: Map function names when revealing module pattern is 
used.
+              (let ((retval (js2-return-node-retval ret))
+                    (target-qname (js2-compute-nested-prop-get target)))
+                (js2-record-object-literal retval target-qname
+                                           (js2-node-abs-pos retval))
+                (js2-record-imenu-entry fn target-qname
+                                        (js2-node-abs-pos target))))))))))
+
+;;;###autoload
+(define-minor-mode js2-imenu-extras-mode
+  "Toggle Imenu support for frameworks and structural patterns."
+  :lighter ""
+  (if js2-imenu-extras-mode
+      (js2-imenu-extras-setup)
+    (js2-imenu-extras-remove)))
+
+(provide 'js2-imenu-extras)