Mercurial > hg > xemacs-beta
view src/console-gtk.h @ 5566:4654c01af32b
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.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 07 Sep 2011 16:26:45 +0100 |
| parents | 308d34e9f07d |
| children |
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/* Define X specific console, device, and frame object for XEmacs. Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. Copyright (C) 2002, 2003 Ben Wing. 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/>. */ /* Synched up with: Not in FSF. */ /* Authorship: Ultimately based on FSF, then later on JWZ work for Lemacs. Rewritten over time by Ben Wing and Chuck Thompson (original multi-device work by Chuck Thompson). */ #ifndef _XEMACS_CONSOLE_GTK_H_ #define _XEMACS_CONSOLE_GTK_H_ #ifdef HAVE_GTK #include "console.h" #include "sysgtk.h" /* Variables associated with the X display frame this emacs is using. */ extern Lisp_Object Vx_gc_pointer_shape; extern Lisp_Object Vx_scrollbar_pointer_shape; /* Number of pixels below each line. */ extern int gtk_interline_space; extern int gtk_selection_timeout; struct frame *gtk_widget_to_frame (GtkWidget *); struct frame *gtk_any_window_to_frame (struct device *d, GdkWindow *); struct frame *gtk_window_to_frame (struct device *d, GdkWindow *); struct frame *gtk_any_widget_or_parent_to_frame (struct device *d, GtkWidget *widget); struct frame *decode_gtk_frame (Lisp_Object); struct device *gtk_any_window_to_device (GdkWindow *); struct device *decode_gtk_device (Lisp_Object); void gtk_handle_property_notify (GdkEventProperty *event); void signal_special_gtk_user_event (Lisp_Object channel, Lisp_Object function, Lisp_Object object); void gtk_output_string (struct window *w, struct display_line *dl, Ichar_dynarr *buf, int xpos, int xoffset, int start_pixpos, int width, face_index findex, int cursor, int cursor_start, int cursor_width, int cursor_height); GdkGC *gtk_get_gc (struct frame *f, Lisp_Object font, Lisp_Object fg, Lisp_Object bg, Lisp_Object bg_pmap, Lisp_Object lwidth); int gtk_initialize_frame_menubar (struct frame *f); void gtk_init_modifier_mapping (struct device *d); void Initialize_Locale (void); extern Lisp_Object Vgtk_initial_argv_list; /* #### ugh! */ const char *gtk_event_name (GdkEventType event_type); void reinit_console_type_create_gtk (void); void emacs_gtk_selection_handle (GtkWidget *, GtkSelectionData *selection_data, guint info, guint time_stamp, gpointer data); void emacs_gtk_selection_clear_event_handle (GtkWidget *widget, GdkEventSelection *event, gpointer data); void emacs_gtk_selection_received (GtkWidget *widget, GtkSelectionData *selection_data, gpointer user_data); typedef unsigned int GUI_ID; extern GUI_ID new_gui_id (void); extern void gcpro_popup_callbacks (GUI_ID id, Lisp_Object data); extern void ungcpro_popup_callbacks (GUI_ID id); extern Lisp_Object get_gcpro_popup_callbacks (GUI_ID id); int gtk_event_to_emacs_event (struct frame *frame, GdkEvent *gdk_event, struct Lisp_Event *emacs_event); gint emacs_gtk_key_event_handler(GtkWidget *widget, GdkEventKey *event); gint emacs_gtk_button_event_handler(GtkWidget *widget, GdkEventButton *event); gint emacs_gtk_motion_event_handler (GtkWidget *widget, GdkEventMotion *event); gboolean emacs_shell_event_handler (GtkWidget *wid /* unused */, GdkEvent *event, gpointer closure); #endif /* HAVE_GTK */ #endif /* _XEMACS_DEVICE_X_H_ */