view src/inline.c @ 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
line wrap: on
line source

/* Repository for inline functions
   Copyright (C) 1995 Sun Microsystems, Inc.
   Copyright (C) 2010 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. */

/* The purpose of this file is so that there is at least one actual
   definition of each inline function.  This is needed under GCC.  The
   reason is that under GCC we declare our inline functions `inline
   extern', which causes the inlined version to get used only for
   inlining, and in other cases to generate an external reference to
   the function.  This is more efficient than declaring our inline
   functions `inline static', which (in many cases) would cause a separate
   version of the function to get inserted into every source file that
   included the corresponding header file.  See internals.texi.

   Some compilers that recognize `inline' may not do the same
   `inline extern' business, so on those we just do `inline static'.
   */

/* Note to maintainers: This file contains a list of all header files
   that use the INLINE macro, either directly, or by using DECLARE_LISP_OBJECT.
   i.e. the output of ``grep -l -w 'DECLARE_LISP_OBJECT|INLINE_HEADER' *.h'' */

#define DONT_EXTERN_INLINE_HEADER_FUNCTIONS

#include <config.h>
#include "lisp.h"

#include "sysfile.h"

#include "buffer.h"
#include "bytecode.h"
#include "casetab.h"
#include "chartab.h"
#include "device-impl.h"
#include "elhash.h"
#include "events.h"
#include "extents-impl.h"
#include "faces.h"
#include "frame-impl.h"
#include "glyphs.h"
#include "gui.h"
#include "keymap.h"
#include "lstream.h"
#include "fontcolor-impl.h"
#include "opaque.h"
#include "process.h"
#include "rangetab.h"
#include "specifier.h"
#include "symeval.h"
#include "syntax.h"
#include "window.h"

/* If we demand !defined (HAVE_SHLIB) the INLINE_HEADERS aren't instantiated.
   This only shows up in --with-error-checking=types builds AFAIK.
   On Mac OS X 10.3.9 with the Apple toolchain (GCC 3.3) gives a buildtime
   link error (the lrecord error_check functions are undefined).
   Debian GNU/Linux `sid' with GCC 4.0.3 prerelease & binutils 2.16.91 gives
   a runtime link error (the lrecord error_check functions are undefined).
   It is possible that this can be fixed trickily by appropriately defining
   INLINE, or that it should be done in the module itself somehow.  If you
   can do it better or more elegantly, please feel free to consult me.
   --stephen 2005-11-07 */
#if defined (HAVE_LDAP)
#include "../modules/ldap/eldap.h"
#endif

/* We can't ask for !defined (HAVE_SHLIB).  See HAVE_LDAP, above. */
#if defined (HAVE_POSTGRESQL)
#include "../modules/postgresql/postgresql.h"
#endif

#ifdef HAVE_TOOLBARS
#include "toolbar.h"
#endif

#ifdef HAVE_SCROLLBARS
#include "scrollbar.h"
#endif

#ifdef HAVE_DATABASE
#include "database.h"
#endif

#include "console-stream-impl.h"

#ifdef HAVE_X_WINDOWS
#include "console-x-impl.h"
#ifdef HAVE_XFT
#include "font-mgr.h"
#endif
#endif

#ifdef HAVE_MS_WINDOWS
#include "console-msw-impl.h"
#endif

#ifdef HAVE_TTY
#include "console-tty-impl.h"
#include "fontcolor-tty-impl.h"
#endif

#ifdef HAVE_GTK
#include "console-gtk-impl.h"
#include "ui-gtk.h"
#endif

#include "file-coding.h"

#ifdef TOOLTALK
#include "tooltalk.h"
#endif