;;; byte-opt.el --- the optimization passes of the emacs-lisp byte compiler
;; Copyright (C) 1991, 1994, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Jamie Zawinski <jwz@lucid.com>
;; Hallvard Furuseth <hbf@ulrik.uio.no>
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Isn't it an error for `string' not to be unibyte?? --stef
(if (fboundp 'string-as-unibyte)
(setq string (string-as-unibyte string)))
+ ;; `byte-compile-splice-in-already-compiled-code'
+ ;; takes care of inlining the body.
(cons `(lambda ,(aref fn 0)
(byte-code ,string ,(aref fn 2) ,(aref fn 3)))
(cdr form)))
form))
((or (byte-code-function-p fn)
(eq 'lambda (car-safe fn)))
- (byte-compile-unfold-lambda form))
+ (byte-optimize-form-code-walker
+ (byte-compile-unfold-lambda form)
+ for-effect))
((memq fn '(let let*))
;; recursively enter the optimizer for the bindings and body
;; of a let or let*. This for depth-firstness: forms that
;;
;; It is now safe to optimize code such that it introduces new bindings.
-;; I'd like this to be a defsubst, but let's not be self-referential...
(defsubst byte-compile-trueconstp (form)
"Return non-nil if FORM always evaluates to a non-nil value."
+ (while (eq (car-safe form) 'progn)
+ (setq form (car (last (cdr form)))))
(cond ((consp form)
(case (car form)
(quote (cadr form))
- (progn (byte-compile-trueconstp (car (last (cdr form)))))))
+ ;; Can't use recursion in a defsubst.
+ ;; (progn (byte-compile-trueconstp (car (last (cdr form)))))
+ ))
((not (symbolp form)))
((eq form t))
((keywordp form))))
(defsubst byte-compile-nilconstp (form)
"Return non-nil if FORM always evaluates to a nil value."
+ (while (eq (car-safe form) 'progn)
+ (setq form (car (last (cdr form)))))
(cond ((consp form)
(case (car form)
(quote (null (cadr form)))
- (progn (byte-compile-nilconstp (car (last (cdr form)))))))
+ ;; Can't use recursion in a defsubst.
+ ;; (progn (byte-compile-nilconstp (car (last (cdr form)))))
+ ))
((not (symbolp form)) nil)
((null form))))
char-equal char-to-string char-width
compare-strings concat coordinates-in-window-p
copy-alist copy-sequence copy-marker cos count-lines
+ decode-char
decode-time default-boundp default-value documentation downcase
- elt exp expt encode-time error-message-string
+ elt encode-char exp expt encode-time error-message-string
fboundp fceiling featurep ffloor
file-directory-p file-exists-p file-locked-p file-name-absolute-p
file-newer-than-file-p file-readable-p file-symlink-p file-writable-p
int-to-string intern-soft
keymap-parent
length local-variable-if-set-p local-variable-p log log10 logand
- logb logior lognot logxor lsh
+ logb logior lognot logxor lsh langinfo
make-list make-string make-symbol
marker-buffer max member memq min mod multibyte-char-to-unibyte
next-window nth nthcdr number-to-string
string-to-int string-to-number substring sxhash symbol-function
symbol-name symbol-plist symbol-value string-make-unibyte
string-make-multibyte string-as-multibyte string-as-unibyte
+ string-to-multibyte
tan truncate
unibyte-char-to-multibyte upcase user-full-name
user-login-name user-original-login-name user-variable-p
'(arrayp atom
bobp bolp bool-vector-p
buffer-end buffer-list buffer-size buffer-string bufferp
- car-safe case-table-p cdr-safe char-or-string-p commandp cons consp
+ car-safe case-table-p cdr-safe char-or-string-p characterp
+ charsetp commandp cons consp
current-buffer current-global-map current-indentation
current-local-map current-minor-mode-maps current-time
current-time-string current-time-zone
invocation-directory invocation-name
keymapp
line-beginning-position line-end-position list listp
- make-marker mark mark-marker markerp memory-limit minibuffer-window
+ make-marker mark mark-marker markerp max-char
+ memory-limit minibuffer-window
mouse-movement-p
natnump nlistp not null number-or-marker-p numberp
one-window-p overlayp
- point point-marker point-min point-max preceding-char processp
+ point point-marker point-min point-max preceding-char primary-charset
+ processp
recent-keys recursion-depth
safe-length selected-frame selected-window sequencep
standard-case-table standard-syntax-table stringp subrp symbolp
HCoop / bpt / emacs.git / blobdiff