annotate src/lisp-disunion.h @ 793:e38acbeb1cae
[xemacs-hg @ 2002-03-29 04:46:17 by ben]
lots o' fixes
etc/ChangeLog: New file.
Separated out all entries for etc/ into their own ChangeLog.
Includes entries for the following files:
etc/BABYL, etc/BETA, etc/CHARSETS, etc/DISTRIB, etc/Emacs.ad,
etc/FTP, etc/GNUS-NEWS, etc/GOATS, etc/HELLO, etc/INSTALL,
etc/MACHINES, etc/MAILINGLISTS, etc/MSDOS, etc/MYTHOLOGY, etc/NEWS,
etc/OXYMORONS, etc/PACKAGES, etc/README, etc/TUTORIAL,
etc/TUTORIAL.de, etc/TUTORIAL.ja, etc/TUTORIAL.ko, etc/TUTORIAL.se,
etc/aliases.ksh, etc/altrasoft-logo.xpm, etc/check_cygwin_setup.sh,
etc/custom/example-themes/europe-theme.el,
etc/custom/example-themes/ex-custom-file,
etc/custom/example-themes/example-theme.el, etc/e/eterm.ti,
etc/edt-user.doc, etc/enriched.doc, etc/etags.1, etc/gnuserv.1,
etc/gnuserv.README, etc/package-index.LATEST.gpg,
etc/package-index.LATEST.pgp, etc/photos/jan.png, etc/recycle.xpm,
etc/refcard.tex, etc/sample.Xdefaults, etc/sample.emacs,
etc/sgml/CATALOG, etc/sgml/HTML32.dtd, etc/skk/SKK.tut.E,
etc/smilies/Face_ase.xbm, etc/smilies/Face_ase2.xbm,
etc/smilies/Face_ase3.xbm, etc/smilies/Face_smile.xbm,
etc/smilies/Face_weep.xbm, etc/sounds, etc/toolbar,
etc/toolbar/workshop-cap-up.xpm, etc/xemacs-ja.1, etc/xemacs.1,
etc/yow.lines, etc\BETA, etc\NEWS, etc\README, etc\TUTORIAL,
etc\TUTORIAL.de, etc\check_cygwin_setup.sh, etc\sample.init.el,
etc\unicode\README, etc\unicode\mule-ucs\*, etc\unicode\other\*
unicode/unicode-consortium/8859-16.TXT: New file.
mule/english.el: Define this charset now, since a bug was fixed that formerly
prevented it.
mule/ethio-util.el: Fix compile errors involving Unicode `characters', which should be
integers.
Makefile.in.in: Always include gui.c, to fix compile error when TTY-only.
EmacsFrame.c, abbrev.c, alloc.c, buffer.c, buffer.h, bytecode.c, bytecode.h, callint.c, callproc.c, casetab.c, casetab.h, charset.h, chartab.c, chartab.h, cmds.c, console-msw.c, console-msw.h, console-tty.c, console-x.c, console-x.h, console.c, console.h, data.c, database.c, device-gtk.c, device-msw.c, device-x.c, device.c, device.h, dialog-msw.c, doc.c, doprnt.c, dumper.c, dynarr.c, editfns.c, eldap.c, eldap.h, elhash.c, elhash.h, emacs.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, event-tty.c, event-unixoid.c, events.c, events.h, extents.c, extents.h, faces.c, faces.h, file-coding.c, file-coding.h, fileio.c, filelock.c, fns.c, frame-gtk.c, frame-msw.c, frame-tty.c, frame-x.c, frame.c, frame.h, free-hook.c, general-slots.h, glyphs-eimage.c, glyphs-gtk.c, glyphs-msw.c, glyphs-widget.c, glyphs-x.c, glyphs.c, glyphs.h, gpmevent.c, gtk-xemacs.c, gui-msw.c, gui-x.c, gui-x.h, gui.c, gui.h, gutter.c, gutter.h, indent.c, input-method-xlib.c, insdel.c, keymap.c, keymap.h, lisp-disunion.h, lisp-union.h, lisp.h, lread.c, lrecord.h, lstream.c, lstream.h, marker.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, menubar.c, minibuf.c, mule-canna.c, mule-ccl.c, mule-charset.c, mule-wnnfns.c, native-gtk-toolbar.c, objects-msw.c, objects-tty.c, objects-x.c, objects.c, objects.h, opaque.c, opaque.h, postgresql.c, postgresql.h, print.c, process-unix.c, process.c, process.h, rangetab.c, rangetab.h, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-tty.c, redisplay-x.c, redisplay.c, scrollbar-gtk.c, scrollbar-msw.c, scrollbar-x.c, scrollbar.c, scrollbar.h, search.c, select-gtk.c, select-x.c, sound.c, specifier.c, specifier.h, strftime.c, symbols.c, symeval.h, syntax.h, text.c, text.h, toolbar-common.c, toolbar-msw.c, toolbar.c, toolbar.h, tooltalk.c, tooltalk.h, ui-gtk.c, ui-gtk.h, undo.c, vm-limit.c, window.c, window.h: Eliminate XSETFOO. Replace all usages with wrap_foo().
Make symbol->name a Lisp_Object, not Lisp_String *. Eliminate
nearly all uses of Lisp_String * in favor of Lisp_Object, and
correct macros so most of them favor Lisp_Object.
Create new error-behavior ERROR_ME_DEBUG_WARN -- output warnings,
but at level `debug' (usually ignored). Use it when instantiating
specifiers, so problems can be debugged. Move
log-warning-minimum-level into C so that we can optimize
ERROR_ME_DEBUG_WARN.
Fix warning levels consistent with new definitions.
Add default_ and parent fields to char table; not yet implemented.
New fun Dynarr_verify(); use for further error checking on Dynarrs.
Rearrange code at top of lisp.h in conjunction with dynarr changes.
Fix eifree(). Use Eistrings in various places
(format_event_object(), where_is_to_char(), and callers thereof)
to avoid fixed-size strings buffers. New fun write_eistring().
Reindent and fix GPM code to follow standards.
Set default MS Windows font to Lucida Console (same size as
Courier New but less interline spacing, so more lines fit).
Increase default frame size on Windows to 50 lines. (If that's too
big for the workspace, the frame will be shrunk as necessary.)
Fix problem with text files with no newlines (). (Change
`convert-eol' coding system to use `nil' for autodetect,
consistent with make-coding-system.)
Correct compile warnings in vm-limit.c.
Fix handling of reverse-direction charsets to avoid errors when
opening (e.g.) mule-ucs/lisp/reldata/uiso8859-6.el.
Recode some object printing methods to use write_fmt_string()
instead of a fixed buffer and sprintf.
Turn on display of png comments as warnings (level `info'), now
that they're unobtrusive.
Revamped the sound documentation.
Fixed bug in redisplay w.r.t. hscroll/truncation/continuation
glyphs causing jumping up and down of the lines, since they're
bigger than the line size. (It was seen most obviously when
there's a horizontal scroll bar, e.g. do C-h a glyph or something
like that.) The problem was that the glyph-contrib-p setting on
glyphs was ignored even if it was set properly, which it wasn't
until now.
| author |
ben |
| date |
Fri, 29 Mar 2002 04:49:13 +0000 |
| parents |
af57a77cbc92 |
| children |
a5954632b187 |
| rev |
line source |
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428
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1 /* Fundamental definitions for XEmacs Lisp interpreter -- non-union objects.
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2 Copyright (C) 1985, 1986, 1987, 1992, 1993 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.30. Split out from lisp.h. */
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22 /* This file has diverged greatly from FSF Emacs. Syncing is no
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23 longer desirable or possible */
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24
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25 /*
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26 Format of a non-union-type Lisp Object
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27
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28 3 2 1 0
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29 bit 10987654321098765432109876543210
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30 --------------------------------
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31 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTT
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32
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33 Integers are treated specially, and look like this:
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34
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35 3 2 1 0
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36 bit 10987654321098765432109876543210
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37 --------------------------------
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38 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVT
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39
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40 For integral Lisp types, i.e. integers and characters, the value
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458
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41 bits are the Lisp object. Some people call such Lisp_Objects "immediate".
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428
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42
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458
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43 The object is obtained by masking off the type bits.
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462
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44 Bit 1 is used as a value bit by splitting the Lisp integer type
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458
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45 into two subtypes, Lisp_Type_Int_Even and Lisp_Type_Int_Odd.
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46 By this trickery we get 31 bits for integers instead of 30.
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428
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47
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48 For non-integral types, the value bits of a Lisp_Object contain
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49 a pointer to a structure containing the object. The pointer is
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50 obtained by masking off the type and mark bits.
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51
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462
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52 All pointer-based types are coalesced under a single type called
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458
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53 Lisp_Type_Record. The type bits for this type are required by the
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54 implementation to be 00, just like the least significant bits of
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55 word-aligned struct pointers on 32-bit hardware. This requires that
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56 all structs implementing Lisp_Objects have an alignment of at least 4
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57 bytes. Because of this, Lisp_Object pointers don't have to be masked
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58 and are full-sized.
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428
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59
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458
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60 There are no mark bits in the Lisp_Object itself (there used to be).
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61
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62 Integers and characters don't need to be marked. All other types are
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63 lrecord-based, which means they get marked by setting the mark bit in
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64 the struct lrecord_header.
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428
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65
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66 Here is a brief description of the following macros:
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67
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68 XTYPE The type bits of a Lisp_Object
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69 XPNTRVAL The value bits of a Lisp_Object storing a pointer
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70 XCHARVAL The value bits of a Lisp_Object storing a Emchar
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71 XREALINT The value bits of a Lisp_Object storing an integer, signed
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72 XUINT The value bits of a Lisp_Object storing an integer, unsigned
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458
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73 INTP Non-zero if this Lisp_Object is an integer
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428
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74 Qzero Lisp Integer 0
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458
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75 EQ Non-zero if two Lisp_Objects are identical, not merely equal. */
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428
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76
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77
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78 typedef EMACS_INT Lisp_Object;
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79
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80 #define Lisp_Type_Int_Bit (Lisp_Type_Int_Even & Lisp_Type_Int_Odd)
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617
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81 #define wrap_pointer_1(ptr) ((Lisp_Object) (ptr))
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428
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82 #define make_int(x) ((Lisp_Object) (((x) << INT_GCBITS) | Lisp_Type_Int_Bit))
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83 #define make_char(x) ((Lisp_Object) (((x) << GCBITS) | Lisp_Type_Char))
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84 #define VALMASK (((1UL << VALBITS) - 1UL) << GCTYPEBITS)
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85 #define XTYPE(x) ((enum Lisp_Type) (((EMACS_UINT)(x)) & ~VALMASK))
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86 #define XPNTRVAL(x) (x) /* This depends on Lisp_Type_Record == 0 */
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87 #define XCHARVAL(x) ((x) >> GCBITS)
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88 #define XREALINT(x) ((x) >> INT_GCBITS)
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89 #define XUINT(x) ((EMACS_UINT)(x) >> INT_GCBITS)
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90 #define INTP(x) ((EMACS_UINT)(x) & Lisp_Type_Int_Bit)
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91 #define INT_PLUS(x,y) ((x)+(y)-Lisp_Type_Int_Bit)
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92 #define INT_MINUS(x,y) ((x)-(y)+Lisp_Type_Int_Bit)
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93 #define INT_PLUS1(x) INT_PLUS (x, make_int (1))
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94 #define INT_MINUS1(x) INT_MINUS (x, make_int (1))
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95
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96 #define Qzero make_int (0)
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97 #define Qnull_pointer ((Lisp_Object) 0)
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98 #define EQ(x,y) ((x) == (y))
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99
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100 /* Convert between a (void *) and a Lisp_Object, as when the
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101 Lisp_Object is passed to a toolkit callback function */
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102 #define VOID_TO_LISP(larg,varg) ((void) ((larg) = ((Lisp_Object) (varg))))
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103 #define CVOID_TO_LISP VOID_TO_LISP
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104 #define LISP_TO_VOID(larg) ((void *) (larg))
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452
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105 #define LISP_TO_CVOID(larg) ((const void *) (larg))
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428
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106
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107 /* Convert a Lisp_Object into something that can't be used as an
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108 lvalue. Useful for type-checking. */
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109 #define NON_LVALUE(larg) ((larg) + 0)
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