Support full Common Lisp multiple values in C. lisp/ChangeLog 2009-08-11 Aidan Kehoe <kehoea@parhasard.net> * bytecomp.el : Update this file to support full C-level multiple values. This involves: -- Four new bytecodes, and special compiler functions to compile multiple-value-call, multiple-value-list-internal, values, values-list, and, since it now needs to pass back multiple values and is a special form, throw. -- There's a new compiler variable, byte-compile-checks-on-load, which is a list of forms that are evaluated at the very start of a file, with an error thrown if any of them give nil. -- The header is now inserted *after* compilation, giving a chance for the compilation process to influence what those checks are. There is still a check done before compilation for non-ASCII characters, to try to turn off dynamic docstrings if appopriate, in `byte-compile-maybe-reset-coding'. Space is reserved for checks; comments describing the version of the byte compiler generating the file are inserted if space remains for them. * bytecomp.el (byte-compile-version): Update this, we're a newer version of the byte compiler. * byte-optimize.el (byte-optimize-funcall): Correct a comment. * bytecomp.el (byte-compile-lapcode): Discard the arg with byte-multiple-value-call. * bytecomp.el (byte-compile-checks-and-comments-space): New variable, describe how many octets to reserve for checks at the start of byte-compiled files. * cl-compat.el: Remove the fake multiple-value implementation. Have the functions that use it use the real multiple-value implementation instead. * cl-macs.el (cl-block-wrapper, cl-block-throw): Revise the byte-compile properties of these symbols to work now we've made throw into a special form; keep the byte-compile properties as anonymous lambdas, since we don't have docstrings for them. * cl-macs.el (multiple-value-bind, multiple-value-setq) (multiple-value-list, nth-value): Update these functions to work with the C support for multiple values. * cl-macs.el (values): Modify the setf handler for this to call #'multiple-value-list-internal appropriately. * cl-macs.el (cl-setf-do-store): If the store form is a cons, treat it specially as wrapping the store value. * cl.el (cl-block-wrapper): Make this an alias of #'and, not #'identity, since it needs to pass back multiple values. * cl.el (multiple-value-apply): We no longer support this, mark it obsolete. * lisp-mode.el (eval-interactive-verbose): Remove a useless space in the docstring. * lisp-mode.el (eval-interactive): Update this function and its docstring. It now passes back a list, basically wrapping any eval calls with multiple-value-list. This allows multiple values to be printed by default in *scratch*. * lisp-mode.el (prin1-list-as-multiple-values): New function, printing a list as multiple values in the manner of Bruno Haible's clisp, separating each entry with " ;\n". * lisp-mode.el (eval-last-sexp): Call #'prin1-list-as-multiple-values on the return value of #'eval-interactive. * lisp-mode.el (eval-defun): Call #'prin1-list-as-multiple-values on the return value of #'eval-interactive. * mouse.el (mouse-eval-sexp): Deal with lists corresponding to multiple values from #'eval-interactive. Call #'cl-prettyprint, which is always available, instead of sometimes calling #'pprint and sometimes falling back to prin1. * obsolete.el (obsolete-throw): New function, called from eval.c when #'funcall encounters an attempt to call #'throw (now a special form) as a function. Only needed for compatibility with 21.4 byte-code. man/ChangeLog addition: 2009-08-11 Aidan Kehoe <kehoea@parhasard.net> * cl.texi (Organization): Remove references to the obsolete multiple-value emulating code. src/ChangeLog addition: 2009-08-11 Aidan Kehoe <kehoea@parhasard.net> * bytecode.c (enum Opcode /* Byte codes */): Add four new bytecodes, to deal with multiple values. (POP_WITH_MULTIPLE_VALUES): New macro. (POP): Modify this macro to ignore multiple values. (DISCARD_PRESERVING_MULTIPLE_VALUES): New macro. (DISCARD): Modify this macro to ignore multiple values. (TOP_WITH_MULTIPLE_VALUES): New macro. (TOP_ADDRESS): New macro. (TOP): Modify this macro to ignore multiple values. (TOP_LVALUE): New macro. (Bcall): Ignore multiple values where appropriate. (Breturn): Pass back multiple values. (Bdup): Preserve multiple values. Use TOP_LVALUE with most bytecodes that assign anything to anything. (Bbind_multiple_value_limits, Bmultiple_value_call, Bmultiple_value_list_internal, Bthrow): Implement the new bytecodes. (Bgotoifnilelsepop, Bgotoifnonnilelsepop, BRgotoifnilelsepop, BRgotoifnonnilelsepop): Discard any multiple values. * callint.c (Fcall_interactively): Ignore multiple values when calling #'eval, in two places. * device-x.c (x_IO_error_handler): * macros.c (pop_kbd_macro_event): * eval.c (Fsignal): * eval.c (flagged_a_squirmer): Call throw_or_bomb_out, not Fthrow, now that the latter is a special form. * eval.c: Make Qthrow, Qobsolete_throw available as symbols. Provide multiple_value_current_limit, multiple-values-limit (the latter as specified by Common Lisp. * eval.c (For): Ignore multiple values when comparing with Qnil, but pass any multiple values back for the last arg. * eval.c (Fand): Ditto. * eval.c (Fif): Ignore multiple values when examining the result of the condition. * eval.c (Fcond): Ignore multiple values when comparing what the clauses give, but pass them back if a clause gave non-nil. * eval.c (Fprog2): Never pass back multiple values. * eval.c (FletX, Flet): Ignore multiple when evaluating what exactly symbols should be bound to. * eval.c (Fwhile): Ignore multiple values when evaluating the test. * eval.c (Fsetq, Fdefvar, Fdefconst): Ignore multiple values. * eval.c (Fthrow): Declare this as a special form; ignore multiple values for TAG, preserve them for VALUE. * eval.c (throw_or_bomb_out): Make this available to other files, now Fthrow is a special form. * eval.c (Feval): Ignore multiple values when calling a compiled function, a non-special-form subr, or a lambda expression. * eval.c (Ffuncall): If we attempt to call #'throw (now a special form) as a function, don't error, call #'obsolete-throw instead. * eval.c (make_multiple_value, multiple_value_aset) (multiple_value_aref, print_multiple_value, mark_multiple_value) (size_multiple_value): Implement the multiple_value type. Add a long comment describing our implementation. * eval.c (bind_multiple_value_limits): New function, used by the bytecode and by #'multiple-value-call, #'multiple-value-list-internal. * eval.c (multiple_value_call): New function, used by the bytecode and #'multiple-value-call. * eval.c (Fmultiple_value_call): New special form. * eval.c (multiple_value_list_internal): New function, used by the byte code and #'multiple-value-list-internal. * eval.c (Fmultiple_value_list_internal, Fmultiple_value_prog1): New special forms. * eval.c (Fvalues, Fvalues_list): New Lisp functions. * eval.c (values2): New function, for C code returning multiple values. * eval.c (syms_of_eval): Make our new Lisp functions and symbols available. * eval.c (multiple-values-limit): Make this available to Lisp. * event-msw.c (dde_eval_string): * event-stream.c (execute_help_form): * glade.c (connector): * glyphs-widget.c (glyph_instantiator_to_glyph): * glyphs.c (evaluate_xpm_color_symbols): * gui-x.c (wv_set_evalable_slot, button_item_to_widget_value): * gui.c (gui_item_value, gui_item_display_flush_left): * lread.c (check_if_suppressed): * menubar-gtk.c (menu_convert, menu_descriptor_to_widget_1): * menubar-msw.c (populate_menu_add_item): * print.c (Fwith_output_to_temp_buffer): * symbols.c (Fsetq_default): Ignore multiple values when calling Feval. * symeval.h: Add the header declarations necessary for the multiple-values implementation. * inline.c: #include symeval.h, now that it has some inline functions. * lisp.h: Update Fthrow's declaration. Make throw_or_bomb_out available to all files. * lrecord.h (enum lrecord_type): Add the multiple_value type here.

;;; package-net.el --- Installation and Maintenance of XEmacs packages

;; Copyright (C) 2000 Andy Piper.

;; Keywords: internal

;; 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

;;; Commentary:

;; Manipulate packages for the netinstall setup utility

;; The process should be so:

;; 1. The package maintainer or release manager makes a release
;; announcement.
;;
;; 2. For a new package releases the netinstall maintainer simply
;; needs to update `ftp://ftp.xemacs.org/pub/xemacs/setup.ini'. This is
;; harder than it sounds because the file also includes information
;; about the binary releases. At the moment going to the netinstall
;; directory and typing:
;;
;;   `make XEMACS=<current executable location> setup.ini' 
;;
;; will do the right thing provided that:
;; 
;; (a) `package-net-cygwin32-binary-size' and
;; `package-net-win32-binary-size' are set correctly.
;;
;; (b) The binary pointed to by `XEMACS' has a current
;; `package-index.LATEST.pgp' file. If you don't specify the XEMACS=
;; part then you will get whatever is current for your build tree -
;; which is probably not what you want.
;;
;; You can run `package-net-convert-index-to-ini' manually and specify
;; REMOTE but I generally found that to be inconvenient and error-prone.
;;
;; 3. For package releases that's all you need to do. For binary
;; releases you need to build both cygwin and win32 binaries and put
;; them in appropriate tarballs: This can be achieved by running
;; build-msw-release.sh
;;

(require 'package-admin)
(require 'package-get)

;; What path should we use from the myriad available?
;; For netinstall we just want something simple, and anyway this is only to 
;; bootstrap the process. This will be:
;; <root>/setup/ for native windows
;; <root>/lib/xemacs/setup for cygwin.
;;
;;; To Do:
;;
;; 1. Package update functions should also update the installed
;; database so that running setup.exe again does not reinstall
;; packages.
;;
;; 2. Generating setup.ini should be more automatic.

(defvar package-net-cygwin32-binary-size 0
  "The size in bytes of the cygwin32 binary distribution.")

(defvar package-net-win32-binary-size 0
  "The size in bytes of the win32 binary distribution.")

(defvar package-net-kit-version ""
  "XEmacs kitting revision, usually empty.")

(defvar package-net-setup-version "1.0"
  "The version string of setup.")

;;;###autoload
(defun package-net-setup-directory ()
  (file-truename (concat data-directory "../../" (if (eq system-type 'cygwin32)
						     "xemacs/setup/" "setup/"))))

(defun package-net-generate-bin-ini (&optional version)
  "Convert the package index to ini file format in the current directory."
  (let ((buf (get-buffer-create "*setup-bin.ini*")))
    (unwind-protect
        (save-excursion
          (set-buffer buf)
          (erase-buffer buf)
          (goto-char (point-min))
	  (insert "# This file is automatically generated.  If you edit it, your\n")
	  (insert "# edits will be discarded next time the file is generated.\n")
	  (insert "#\n\n")
	  (insert (format "setup-timestamp: %d\n" 
			  (+ (* (car (current-time)) 65536) (car (cdr (current-time))))))
	  (insert (format "setup-version: %s\n\n" (or version "1.0")))
	  ;; Native version
	  (insert (format "@ %s\n" "xemacs-i586-pc-win32"))
	  (insert (format "version: %s%s\n" emacs-program-version 
			  package-net-kit-version))
	  (insert "type: native\n")
	  (insert (format "install: win32/%s %d\n\n"
			  (concat emacs-program-name
				  "-i586-pc-win32-"
				    emacs-program-version package-net-kit-version 
				    ".tar.gz")
			  package-net-win32-binary-size))
	  ;; Cygwin version
	  (insert (format "@ %s\n" "xemacs-i686-pc-cygwin"))
	  (insert (format "version: %s%s\n" emacs-program-version 
			  package-net-kit-version))
	  (insert "type: cygwin\n")
	  (insert (format "install: cygwin32/%s %d\n\n"
			  (concat emacs-program-name
				  "-i686-pc-cygwin-"
				  emacs-program-version package-net-kit-version
				  ".tar.gz") 
			  package-net-cygwin32-binary-size))
	  (insert "# setup.ini file ends here\n")
	  (write-region (point-min) (point-max) "setup-bin.ini")))
    (kill-buffer buf)))

(defun package-net-batch-generate-bin-ini ()
  "Convert the package index to ini file format."
  (unless noninteractive
    (error 'invalid-operation
	   "`package-net-batch-generate-bin-ini' is to be used only with -batch"))
  (package-net-generate-bin-ini package-net-setup-version))

;;;###autoload
(defun package-net-update-installed-db (&optional destdir)
  "Write out the installed package index in a net install suitable format.
If DESTDIR is non-nil then use that as the destination directory. 
DESTDIR defaults to the value of `package-net-setup-directory'."

  (when (or (eq system-type 'cygwin32)
	    (eq system-type 'window-nt))
    (setq destdir (file-name-as-directory 
		   (or destdir (package-net-setup-directory))))
    (let ((buf (get-buffer-create "*installed.db*")))
      (unwind-protect
	  (save-excursion
	    (set-buffer buf)
	    (erase-buffer buf)
	    (goto-char (point-min))
	    ;; we use packages-package-list here as we actually want to
	    ;; update relative to the installed reality
	    (let ((entries packages-package-list) entry version)
	      (while entries
		(setq entry (car entries))
		(setq version (plist-get (cdr entry) :version))
		;; Unfortunately we can't read the size from this
		(insert (format "%s %s-%3.2f-pkg.tar.gz 0\n" (symbol-name (car entry))
				(symbol-name (car entry))
				version))
		(setq entries (cdr entries))))
	    (make-directory-path destdir)
	    (write-region (point-min) (point-max) (concat destdir "installed.db")))
	(kill-buffer buf)))))

(defun package-net-convert-download-sites-to-mirrors (&optional destdir)
  "Write out the download site list in a net install suitable format.
If DESTDIR is non-nil then use that as the destination directory. 
DESTDIR defaults to the value of `data-directory'."

  (setq destdir (file-name-as-directory (or destdir data-directory)))
  (let ((buf (get-buffer-create "*mirrors.lst*")))
    (unwind-protect
        (save-excursion
          (set-buffer buf)
          (erase-buffer buf)
          (goto-char (point-min))
          (let ((entries package-get-download-sites) entry)
	    (while entries
	      (setq entry (car entries))
	      (insert (format "ftp://%s/%s;%s;%s\n"
			      (nth 1 entry) (substring (nth 2 entry) 0 -9)
			      (nth 0 entry) (nth 0 entry)))
	      (setq entries (cdr entries))))
	  (write-region (point-min) (point-max) (concat destdir "mirrors.lst")))
      (kill-buffer buf))))