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Fix various small issues with the multiple-value implementation. lisp/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el (byte-optimize-form-code-walker): Be careful about discarding multiple values when optimising #'prog1 calls. (byte-optimize-or): Preserve any trailing nil, as this is a supported way to explicitly discard multiple values. (byte-optimize-cond-1): Discard multiple values with a singleton followed by no more clauses. * bytecomp.el (progn): (prog1): (prog2): Be careful about discarding multiple values in the byte-hunk handler of these three forms. * bytecomp.el (byte-compile-prog1, byte-compile-prog2): Don't call #'values explicitly, use `(or ,(pop form) nil) instead, since that compiles to bytecode, not a funcall. * bytecomp.el (byte-compile-values): With one non-const argument, byte-compile to `(or ,(second form) nil), not an explicit #'values call. * bytecomp.el (byte-compile-insert-header): Be nicer in the error message to emacs versions that don't understand our bytecode. src/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * eval.c (For, Fand): Don't declare val as REGISTER in these functions, for some reason it breaks the non-DEBUG union build. These functions are only called from interpreted code, the performance implication doesn't matter. Thank you Robert Delius Royar! * eval.c (Fmultiple_value_list_internal): Error on too many arguments. tests/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el (Assert-rounding): Remove an overly-verbose failure message here. Correct a couple of tests which were buggy in themselves. Add three new tests, checking the behaviour of #'or and #'and when passed zero arguments, and a Known-Bug-Expect-Failure call involving letf and values. (The bug predates the C-level multiple-value implementation.)
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 06 Sep 2009 19:36:02 +0100
parents fdefd0186b75
children 308d34e9f07d
line wrap: on
line source

/* Define X-specific scrollbar instance.
   Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.

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 2, 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; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

#ifndef INCLUDED_scrollbar_x_h_
#define INCLUDED_scrollbar_x_h_

#if defined (HAVE_X_WINDOWS) && defined (HAVE_SCROLLBARS)

#include "scrollbar.h"

struct x_scrollbar_data
{
  /* Unique scrollbar identifier and name. */
  unsigned int id;
  char *name;

  /* Is set if we have already set the backing_store attribute correctly */
  char backing_store_initialized;

  /* Positioning and sizing information for scrollbar and slider. */
  scrollbar_values pos_data;

  /* Pointer to the scrollbar widget this structure describes. */
  Widget widget;

#if defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_LUCID) || \
    defined (LWLIB_SCROLLBARS_ATHENA3D)
  /* Recorded starting position for Motif-like scrollbar drags. */
  int vdrag_orig_value;
  Charbpos vdrag_orig_window_start;
#endif
};

#define SCROLLBAR_X_DATA(i) ((struct x_scrollbar_data *) ((i)->scrollbar_data))

#define SCROLLBAR_X_ID(i) (SCROLLBAR_X_DATA (i)->id)
#define SCROLLBAR_X_NAME(i) (SCROLLBAR_X_DATA (i)->name)
#define SCROLLBAR_X_BACKING_STORE_INITIALIZED(i) \
  (SCROLLBAR_X_DATA (i)->backing_store_initialized)
#define SCROLLBAR_X_POS_DATA(i) (SCROLLBAR_X_DATA (i)->pos_data)
#define SCROLLBAR_X_WIDGET(i) (SCROLLBAR_X_DATA (i)->widget)

#if defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_LUCID) || \
    defined (LWLIB_SCROLLBARS_ATHENA3D)
#define SCROLLBAR_X_VDRAG_ORIG_VALUE(i) \
  (SCROLLBAR_X_DATA (i)->vdrag_orig_value)
#define SCROLLBAR_X_VDRAG_ORIG_WINDOW_START(i) \
  (SCROLLBAR_X_DATA (i)->vdrag_orig_window_start)
#endif

void x_update_frame_scrollbars (struct frame *f);
void x_set_scrollbar_pointer (struct frame *f, Lisp_Object cursor);

#endif /* HAVE_X_WINDOWS and HAVE_SCROLLBARS */

#endif /* INCLUDED_scrollbar_x_h_ */