Improve the implementation, documentation of #'labels, #'flet. lisp/ChangeLog addition: 2011-09-07 Aidan Kehoe <kehoea@parhasard.net> * bytecomp.el: * bytecomp.el (for-effect): Move this earlier in the file, it's referenced in byte-compile-initial-macro-environment. * bytecomp.el (byte-compile-initial-macro-environment): In the byte-compile-macro-environment definition for #'labels, put off the compiling the lambda bodies until the point where the rest of the form is being compiled, allowing the lambda bodies to access appropriate values for byte-compile-bound-variables, and reducing excessive warning about free variables. Add a byte-compile-macro-environment definition for #'flet. This modifies byte-compile-function-environment appropriately, and warns about bindings of functions that have macro definitions in the current environment, about functions that have byte codes, and about functions that have byte-compile methods (which may not do what the user wants at runtime). * bytecomp.el (byte-compile-funcall): If FUNCTION is constant, call #'byte-compile-callargs-warn if that's appropriate, giving warnings about problems with calling functions bound with #'labels. * cl-macs.el: * cl-macs.el (flet): Mention the main difference from Common Lisp, that the bindings are dynamic, not lexical. Counsel the use of #'labels, not #'flet, for this and other reasons. Explain the limited single use case for #'flet. Cross-reference to bytecomp.el in a comment. * cl-macs.el (labels): Go into detail on which functions may be called from where. Explain how to access the function definition of a label within FORM. Add a comment cross-referencing to bytecomp.el. man/ChangeLog addition: 2011-09-07 Aidan Kehoe <kehoea@parhasard.net> * cl.texi (Function Bindings): Move #'labels first, describe it in more detail, explaining that it is to be preferred over #'flet, and explaining why. Explain that dynamic bindings with #'flet will also not work when functions are accessed through their bytecodes.

;; gtk-embedded-test.el --- test GTK embedding in another window
;;
;; Copyright 2000, 2001 William Perry
;;
;; This file is part of XEmacs.

;; XEmacs 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.

;; XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>.

(gtk-define-test
 "Embedded XEmacs frame" xemacs-frame t
 (setq window (gtk-window-new 'toplevel))
 (let ((table (gtk-table-new 5 3 nil))
       (label nil)
       (entry nil)
       (frame (gtk-frame-new "Type mail message here...")))
   (gtk-container-add window table)

   (setq label (gtk-label-new "To: ")
	 entry (gtk-entry-new))
   (gtk-table-attach table label 0 1 0 1 nil nil 0 0)
   (gtk-table-attach table entry 1 2 0 1 '(fill) '(fill) 0 0)

   (setq label (gtk-label-new "CC: ")
	 entry (gtk-entry-new))
   (gtk-table-attach table label 0 1 1 2 nil nil 0 0)
   (gtk-table-attach table entry 1 2 1 2 '(fill) '(fill) 0 0)

   (setq label (gtk-label-new "Subject: ")
	 entry (gtk-entry-new))
   (gtk-table-attach table label 0 1 2 3 nil nil 0 0)
   (gtk-table-attach table entry 1 2 2 3 '(fill) '(fill) 0 0)

   (gtk-table-attach table frame 0 2 3 4 '(expand fill) '(expand fill) 5 5)
   
   (gtk-widget-show-all window)
   (gdk-flush)
   (make-frame (list 'window-id frame
		     'unsplittable t
		     'menubar-visible-p nil
		     'default-toolbar-visible-p nil))))