annotate src/lastfile.c @ 5562:855b667dea13

Drop cl-macro-environment in favour of byte-compile-macro-environment. lisp/ChangeLog addition: 2011-09-04 Aidan Kehoe <kehoea@parhasard.net> * bytecomp-runtime.el: * bytecomp-runtime.el (byte-compile-macro-environment): Moved from bytecomp.el. * bytecomp.el: * bytecomp.el (byte-compile-initial-macro-environment): Add implementations for #'load-time-value, #'labels here, now cl-macs respects byte-compile-macro-environment. * bytecomp.el (byte-compile-function-environment): * bytecomp.el (byte-compile-macro-environment): Removed. * bytecomp.el (symbol-value): * bytecomp.el (byte-compile-symbol-value): Removed. * cl-extra.el (cl-macroexpand-all): * cl-macs.el: * cl-macs.el (bind-block): * cl-macs.el (cl-macro-environment): Removed. * cl-macs.el (cl-transform-lambda): * cl-macs.el (load-time-value): * cl-macs.el (block): * cl-macs.el (flet): * cl-macs.el (labels): * cl-macs.el (macrolet): * cl-macs.el (symbol-macrolet): * cl-macs.el (lexical-let): * cl-macs.el (apply): * cl-macs.el (nthcdr): * cl-macs.el (getf): * cl-macs.el (substring): * cl-macs.el (values): * cl-macs.el (get-setf-method): * cl-macs.el (cl-setf-do-modify): * cl.el: * cl.el (cl-macro-environment): Removed. * cl.el (cl-macroexpand): * obsolete.el (cl-macro-environment): Moved here. Drop cl-macro-environment, in favour of byte-compile-macro-environment; make the latter available in bytecomp-runtime.el. This makes byte-compile-macro-environment far less useless, since previously code that used cl-macs would ignore it when calling #'cl-macroexpand-all. Add byte-compiler-specific implementations for #'load-time-value, #'labels. The latter is very nice indeed; it avoids the run-time consing of the current implementation, is fully lexical and avoids the run-time shadowing of symbol function slots that flet uses. It would now be reasonable to move most core uses of flet to use labels instead. Non-core code can't rely on print-circle for mutually recursive functions, though, so it's less of an evident win.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 04 Sep 2011 20:37:55 +0100
parents 308d34e9f07d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1 /* Mark end of data space to dump as pure, for XEmacs.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2 Copyright (C) 1985 Free Software Foundation, Inc.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
4 This file is part of XEmacs.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
5
5402
308d34e9f07d Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents: 448
diff changeset
6 XEmacs is free software: you can redistribute it and/or modify it
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
7 under the terms of the GNU General Public License as published by the
5402
308d34e9f07d Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents: 448
diff changeset
8 Free Software Foundation, either version 3 of the License, or (at your
308d34e9f07d Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents: 448
diff changeset
9 option) any later version.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
10
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
14 for more details.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
15
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
16 You should have received a copy of the GNU General Public License
5402
308d34e9f07d Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents: 448
diff changeset
17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
18
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
19 /* Synched up with: FSF 19.30. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
20
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
21
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
22 /* How this works:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
23
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
24 Fdump_emacs dumps everything up to my_edata as text space (pure).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
25
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
26 The files of Emacs are written so as to have no initialized
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
27 data that can ever need to be altered except at the first startup.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
28 This is so that those words can be dumped as sharable text.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
29
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
30 It is not possible to exercise such control over library files.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
31 So it is necessary to refrain from making their data areas shared.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
32 Therefore, this file is loaded following all the files of Emacs
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
33 but before library files.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
34 As a result, the symbol my_edata indicates the point
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
35 in data space between data coming from Emacs and data
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
36 coming from libraries.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
37 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
38
448
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
39 #include <config.h>
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
40
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
41 char my_edata[] = "End of Emacs initialized data";
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
42
448
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
43 /* Ensure there is enough slack in the .bss to pad with. */
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
44 #ifdef HEAP_IN_DATA
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
45 #define BSS_PADDING 0x1000
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
46 #else
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
47 #define BSS_PADDING 1
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
48 #endif
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
49
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
50 char my_ebss [BSS_PADDING];
3078fd1074e8 Import from CVS: tag r21-2-39
cvs
parents: 428
diff changeset
51