annotate src/sysdir.h @ 5294:bbff29a01820

Add compiler macros and compilation sanity-checks for functions with keywords. 2010-10-25 Aidan Kehoe <kehoea@parhasard.net> Add compiler macros and compilation sanity-checking for various functions that take keywords. * byte-optimize.el (side-effect-free-fns): #'symbol-value is side-effect free and not error free. * bytecomp.el (byte-compile-normal-call): Check keyword argument lists for sanity; store information about the positions where keyword arguments start using the new byte-compile-keyword-start property. * cl-macs.el (cl-const-expr-val): Take a new optional argument, cl-not-constant, defaulting to nil, in this function; return it if the expression is not constant. (cl-non-fixnum-number-p): Make this into a separate function, we want to pass it to #'every. (eql): Use it. (define-star-compiler-macros): Use the same code to generate the member*, assoc* and rassoc* compiler macros; special-case some code in #'add-to-list in subr.el. (remove, remq): Add compiler macros for these two functions, in preparation for #'remove being in C. (define-foo-if-compiler-macros): Transform (remove-if-not ...) calls to (remove ... :if-not) at compile time, which will be a real win once the latter is in C. (define-substitute-if-compiler-macros) (define-subst-if-compiler-macros): Similarly for these functions. (delete-duplicates): Change this compiler macro to use #'plists-equal; if we don't have information about the type of SEQUENCE at compile time, don't bother attempting to inline the call, the function will be in C soon enough. (equalp): Remove an old commented-out compiler macro for this, if we want to see it it's in version control. (subst-char-in-string): Transform this to a call to nsubstitute or nsubstitute, if that is appropriate. * cl.el (ldiff): Don't call setf here, this makes for a load-time dependency problem in cl-macs.el
author Aidan Kehoe <kehoea@parhasard.net>
date Mon, 25 Oct 2010 13:04:04 +0100
parents 6bade5a5afc0
children 308d34e9f07d
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1 /*
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2 Copyright (C) 1995 Free Software Foundation, Inc.
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3 Copyright (C) 2000 Ben Wing.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not really in FSF. */
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23
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24 #ifndef INCLUDED_sysdir_h_
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25 #define INCLUDED_sysdir_h_
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26
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27 #ifdef HAVE_UNISTD_H
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28 #include <unistd.h>
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29 #endif
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30
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31 #ifdef SYSV_SYSTEM_DIR
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32 # define select select_ /* Shadowing yuck */
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33 # include <dirent.h>
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34 # undef select
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35 #elif defined (WIN32_NATIVE)
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36 # include <direct.h>
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37 # include "ndir.h"
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38 #elif defined (NONSYSTEM_DIR_LIBRARY)
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39 # include "ndir.h"
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40 #else
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41 # include <sys/dir.h>
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42 #endif /* not NONSYSTEM_DIR_LIBRARY */
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43
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44 #ifdef SYSV_SYSTEM_DIR
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45 # define DIRENTRY struct dirent
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46 #else /* not SYSV_SYSTEM_DIR */
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47 # define DIRENTRY struct direct
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48 #endif
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49
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50 /* The d_nameln member of a struct dirent includes the '\0' character
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51 on some systems, but not on others. What's worse, you can't tell
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52 at compile-time which one it will be, since it really depends on
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53 the sort of system providing the filesystem you're reading from,
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54 not the system you are running on. Paul Eggert
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55 <eggert@bi.twinsun.com> says this occurs when Emacs is running on a
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56 SunOS 4.1.2 host, reading a directory that is remote-mounted from a
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57 Solaris 2.1 host and is in a native Solaris 2.1 filesystem.
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58
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59 (and Solaris 2 doesn't have a d_nameln member at all! Posix.1
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60 doesn't specify it -- mrb)
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61
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62 Since applying strlen to the name always works, we'll just do that. */
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63 #define NAMLEN(p) strlen (p->d_name)
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64
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65 # define DIRENTRY_NONEMPTY(p) ((p)->d_ino)
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67 /* encapsulation: directory calls */
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68
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69 int qxe_chdir (const Ibyte *path);
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70 int qxe_mkdir (const Ibyte *path, mode_t mode);
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71 DIR *qxe_opendir (const Ibyte *filename);
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72 DIRENTRY *qxe_readdir (DIR *dirp);
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73 int qxe_closedir (DIR *dirp);
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74 int qxe_rmdir (const Ibyte *path);
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76 Ibyte *qxe_allocating_getcwd (void);
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78 #endif /* INCLUDED_sysdir_h_ */