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- ;; Compilation of Lisp code into byte code.
- ;; Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
-
- ;; This file is part of GNU Emacs.
-
- ;; 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 1, 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
- ;; 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 GNU Emacs; see the file COPYING. If not, write to
- ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- (provide 'byte-compile)
-
- (defvar byte-compile-constnum -1
- "Transfer vector index of last constant allocated.")
- (defvar byte-compile-constants nil
- "Alist describing contents to put in transfer vector.
- Each element is (CONTENTS . INDEX)")
- (defvar byte-compile-macro-environment nil
- "Alist of (MACRONAME . DEFINITION) macros defined in the file
- which is being compiled.")
- (defvar byte-compile-pc 0
- "Index in byte string to store next opcode at.")
- (defvar byte-compile-output nil
- "Alist describing contents to put in byte code string.
- Each element is (INDEX . VALUE)")
- (defvar byte-compile-depth 0
- "Current depth of execution stack.")
- (defvar byte-compile-maxdepth 0
- "Maximum depth of execution stack.")
-
- (defconst byte-varref 8
- "Byte code opcode for variable reference.")
- (defconst byte-varset 16
- "Byte code opcode for setting a variable.")
- (defconst byte-varbind 24
- "Byte code opcode for binding a variable.")
- (defconst byte-call 32
- "Byte code opcode for calling a function.")
- (defconst byte-unbind 40
- "Byte code opcode for unbinding special bindings.")
-
- (defconst byte-constant 192
- "Byte code opcode for reference to a constant.")
- (defconst byte-constant-limit 64
- "Maximum index usable in byte-constant opcode.")
-
- (defconst byte-constant2 129
- "Byte code opcode for reference to a constant with vector index >= 0100.")
-
- (defconst byte-goto 130
- "Byte code opcode for unconditional jump")
-
- (defconst byte-goto-if-nil 131
- "Byte code opcode for pop value and jump if it's nil.")
-
- (defconst byte-goto-if-not-nil 132
- "Byte code opcode for pop value and jump if it's not nil.")
-
- (defconst byte-goto-if-nil-else-pop 133
- "Byte code opcode for examine top-of-stack, jump and don't pop it if it's nil,
- otherwise pop it.")
-
- (defconst byte-goto-if-not-nil-else-pop 134
- "Byte code opcode for examine top-of-stack, jump and don't pop it if it's not nil,
- otherwise pop it.")
-
- (defconst byte-return 135
- "Byte code opcode for pop value and return it from byte code interpreter.")
-
- (defconst byte-discard 136
- "Byte code opcode to discard one value from stack.")
-
- (defconst byte-dup 137
- "Byte code opcode to duplicate the top of the stack.")
-
- (defconst byte-save-excursion 138
- "Byte code opcode to make a binding to record the buffer, point and mark.")
-
- (defconst byte-save-window-excursion 139
- "Byte code opcode to make a binding to record entire window configuration.")
-
- (defconst byte-save-restriction 140
- "Byte code opcode to make a binding to record the current buffer clipping restrictions.")
-
- (defconst byte-catch 141
- "Byte code opcode for catch. Takes, on stack, the tag and an expression for the body.")
-
- (defconst byte-unwind-protect 142
- "Byte code opcode for unwind-protect. Takes, on stack, an expression for the body
- and an expression for the unwind-action.")
-
- (defconst byte-condition-case 143
- "Byte code opcode for condition-case. Takes, on stack, the variable to bind,
- an expression for the body, and a list of clauses.")
-
- (defconst byte-temp-output-buffer-setup 144
- "Byte code opcode for entry to with-output-to-temp-buffer.
- Takes, on stack, the buffer name.
- Binds standard-output and does some other things.
- Returns with temp buffer on the stack in place of buffer name.")
-
- (defconst byte-temp-output-buffer-show 145
- "Byte code opcode for exit from with-output-to-temp-buffer.
- Expects the temp buffer on the stack underneath value to return.
- Pops them both, then pushes the value back on.
- Unbinds standard-output and makes the temp buffer visible.")
-
- (defconst byte-nth 56)
- (defconst byte-symbolp 57)
- (defconst byte-consp 58)
- (defconst byte-stringp 59)
- (defconst byte-listp 60)
- (defconst byte-eq 61)
- (defconst byte-memq 62)
- (defconst byte-not 63)
- (defconst byte-car 64)
- (defconst byte-cdr 65)
- (defconst byte-cons 66)
- (defconst byte-list1 67)
- (defconst byte-list2 68)
- (defconst byte-list3 69)
- (defconst byte-list4 70)
- (defconst byte-length 71)
- (defconst byte-aref 72)
- (defconst byte-aset 73)
- (defconst byte-symbol-value 74)
- (defconst byte-symbol-function 75)
- (defconst byte-set 76)
- (defconst byte-fset 77)
- (defconst byte-get 78)
- (defconst byte-substring 79)
- (defconst byte-concat2 80)
- (defconst byte-concat3 81)
- (defconst byte-concat4 82)
- (defconst byte-sub1 83)
- (defconst byte-add1 84)
- (defconst byte-eqlsign 85)
- (defconst byte-gtr 86)
- (defconst byte-lss 87)
- (defconst byte-leq 88)
- (defconst byte-geq 89)
- (defconst byte-diff 90)
- (defconst byte-negate 91)
- (defconst byte-plus 92)
- (defconst byte-max 93)
- (defconst byte-min 94)
-
- (defconst byte-point 96)
- ;(defconst byte-mark 97) no longer generated -- lisp code shouldn't call this very frequently
- (defconst byte-goto-char 98)
- (defconst byte-insert 99)
- (defconst byte-point-max 100)
- (defconst byte-point-min 101)
- (defconst byte-char-after 102)
- (defconst byte-following-char 103)
- (defconst byte-preceding-char 104)
- (defconst byte-current-column 105)
- (defconst byte-indent-to 106)
- ;(defconst byte-scan-buffer 107) no longer generated
- (defconst byte-eolp 108)
- (defconst byte-eobp 109)
- (defconst byte-bolp 110)
- (defconst byte-bobp 111)
- (defconst byte-current-buffer 112)
- (defconst byte-set-buffer 113)
- (defconst byte-read-char 114)
- ;(defconst byte-set-mark 115) ;obsolete
- (defconst byte-interactive-p 116)
-
- (defun byte-recompile-directory (directory &optional arg)
- "Recompile every .el file in DIRECTORY that needs recompilation.
- This is if a .elc file exists but is older than the .el file.
- If the .elc file does not exist, offer to compile the .el file
- only if a prefix argument has been specified."
- (interactive "DByte recompile directory: \nP")
- (save-some-buffers)
- (setq directory (expand-file-name directory))
- (let ((files (directory-files directory nil "\\.el\\'"))
- (count 0)
- source dest)
- (while files
- (if (and (not (auto-save-file-name-p (car files)))
- (setq source (expand-file-name (car files) directory))
- (setq dest (concat (file-name-sans-versions source) "c"))
- (if (file-exists-p dest)
- (file-newer-than-file-p source dest)
- (and arg (y-or-n-p (concat "Compile " source "? ")))))
- (progn (byte-compile-file source)
- (setq count (1+ count))))
- (setq files (cdr files)))
- (message "Done (Total of %d file%s compiled)"
- count (if (= count 1) "" "s"))))
-
- (defun byte-compile-file (filename)
- "Compile a file of Lisp code named FILENAME into a file of byte code.
- The output file's name is made by appending \"c\" to the end of FILENAME."
- (interactive "fByte compile file: ")
- ;; Expand now so we get the current buffer's defaults
- (setq filename (expand-file-name filename))
- (message "Compiling %s..." filename)
- (let ((inbuffer (get-buffer-create " *Compiler Input*"))
- (outbuffer (get-buffer-create " *Compiler Output*"))
- (byte-compile-macro-environment nil)
- (case-fold-search nil)
- sexp)
- (save-excursion
- (set-buffer inbuffer)
- (erase-buffer)
- (insert-file-contents filename)
- (goto-char 1)
- (set-buffer outbuffer)
- ;; Avoid running hooks; all we really want is the syntax table.
- (let (emacs-lisp-mode-hook)
- (emacs-lisp-mode))
- (erase-buffer)
- (while (save-excursion
- (set-buffer inbuffer)
- (while (progn (skip-chars-forward " \t\n\^l")
- (looking-at ";"))
- (forward-line 1))
- (not (eobp)))
- (setq sexp (read inbuffer))
- (print (byte-compile-file-form sexp) outbuffer))
- (set-buffer outbuffer)
- (goto-char 1)
- ;; In each defun or autoload, if there is a doc string,
- ;; put a backslash-newline at the front of it.
- (while (search-forward "\n(" nil t)
- (cond ((looking-at "defun \\|autoload ")
- (forward-sexp 3)
- (skip-chars-forward " ")
- (if (looking-at "\"")
- (progn (forward-char 1)
- (insert "\\\n"))))))
- (goto-char 1)
- ;; In each defconst or defvar, if there is a doc string
- ;; and it starts on the same line as the form begins
- ;; (i.e. if there is no newline in a string in the initial value)
- ;; then put in backslash-newline at the start of the doc string.
- (while (search-forward "\n(" nil t)
- (if (looking-at "defvar \\|defconst ")
- (let ((this-line (1- (point))))
- ;;Go to end of initial value expression
- (if (condition-case ()
- (progn (forward-sexp 3) t)
- (error nil))
- (progn
- (skip-chars-forward " ")
- (and (eq this-line
- (save-excursion (beginning-of-line) (point)))
- (looking-at "\"")
- (progn (forward-char 1)
- (insert "\\\n"))))))))
- (let ((vms-stmlf-recfm t))
- (write-region 1 (point-max)
- (concat (file-name-sans-versions filename) "c")))
- (kill-buffer (current-buffer))
- (kill-buffer inbuffer)))
- t)
-
-
- (defun byte-compile-file-form (form)
- (cond ((not (listp form))
- form)
- ((memq (car form) '(defun defmacro))
- (let* ((name (car (cdr form)))
- (tem (assq name byte-compile-macro-environment)))
- (if (eq (car form) 'defun)
- (progn
- (message "Compiling %s (%s)..." filename (nth 1 form))
- (cond (tem (setcdr tem nil))
- ((and (fboundp name)
- (eq (car-safe (symbol-function name)) 'macro))
- ;; shadow existing macro definition
- (setq byte-compile-macro-environment
- (cons (cons name nil)
- byte-compile-macro-environment))))
- (prog1 (cons 'defun (byte-compile-lambda (cdr form)))
- (if (not noninteractive)
- (message "Compiling %s..." filename))))
- ;; defmacro
- (if tem
- (setcdr tem (cons 'lambda (cdr (cdr form))))
- (setq byte-compile-macro-environment
- (cons (cons name (cons 'lambda (cdr (cdr form))))
- byte-compile-macro-environment)))
- (cons 'defmacro (byte-compile-lambda (cdr form))))))
- ((eq (car form) 'require)
- (eval form)
- form)
- (t form)))
-
- (defun byte-compile (funname)
- "Byte-compile the definition of function FUNNAME (a symbol)."
- (if (and (fboundp funname)
- (eq (car-safe (symbol-function funname)) 'lambda))
- (fset funname (byte-compile-lambda (symbol-function funname)))))
-
- (defun byte-compile-lambda (fun)
- (let* ((bodyptr (cdr fun))
- (int (assq 'interactive (cdr bodyptr)))
- newbody)
- ;; Skip doc string.
- (if (and (cdr (cdr bodyptr)) (stringp (car (cdr bodyptr))))
- (setq bodyptr (cdr bodyptr)))
- (setq newbody (list (byte-compile-top-level
- (cons 'progn (cdr bodyptr)))))
- (if int
- (setq newbody (cons (if (or (stringp (car (cdr int)))
- (null (car (cdr int))))
- int
- (list 'interactive
- (byte-compile-top-level (car (cdr int)))))
- newbody)))
- (if (not (eq bodyptr (cdr fun)))
- (setq newbody (cons (nth 2 fun) newbody)))
- (cons (car fun) (cons (car (cdr fun)) newbody))))
-
- (defun byte-compile-top-level (form)
- (let ((byte-compile-constants nil)
- (byte-compile-constnum nil)
- (byte-compile-pc 0)
- (byte-compile-depth 0)
- (byte-compile-maxdepth 0)
- (byte-compile-output nil)
- (byte-compile-string nil)
- (byte-compile-vector nil))
- (let (vars temp (i -1))
- (setq temp (byte-compile-find-vars form))
- (setq form (car temp))
- (setq vars (nreverse (cdr temp)))
- (while vars
- (setq i (1+ i))
- (setq byte-compile-constants (cons (cons (car vars) i)
- byte-compile-constants))
- (setq vars (cdr vars)))
- (setq byte-compile-constnum i))
- (byte-compile-form form)
- (byte-compile-out 'byte-return 0)
- (setq byte-compile-vector (make-vector (1+ byte-compile-constnum)
- nil))
- (while byte-compile-constants
- (aset byte-compile-vector (cdr (car byte-compile-constants))
- (car (car byte-compile-constants)))
- (setq byte-compile-constants (cdr byte-compile-constants)))
- (setq byte-compile-string (make-string byte-compile-pc 0))
- (while byte-compile-output
- (aset byte-compile-string (car (car byte-compile-output))
- (cdr (car byte-compile-output)))
- (setq byte-compile-output (cdr byte-compile-output)))
- (list 'byte-code byte-compile-string
- byte-compile-vector byte-compile-maxdepth)))
-
- ;; Expand all macros in FORM and find all variables it uses.
- ;; Return a pair (EXPANDEDFORM . VARS)
- ;; VARS is ordered with the variables encountered earliest
- ;; at the end.
- ;; The body and cases of a condition-case, and the body of a catch,
- ;; are not scanned; variables used in them are not reported,
- ;; and they are not macroexpanded. This is because they will
- ;; be compiled separately when encountered during the main
- ;; compilation pass.
- (defun byte-compile-find-vars (form)
- (let ((all-vars nil))
- (cons (byte-compile-find-vars-1 form)
- all-vars)))
-
- ;; Walk FORM, making sure all variables it uses are in ALL-VARS,
- ;; and also expanding macros.
- ;; Return the result of expanding all macros in FORM.
- ;; This is a copy; FORM itself is not altered.
- (defun byte-compile-find-vars-1 (form)
- (cond ((symbolp form)
- (if (not (memq form all-vars))
- (setq all-vars (cons form all-vars)))
- form)
- ((or (not (consp form)) (eq (car form) 'quote))
- form)
- ((memq (car form) '(let let*))
- (let* ((binds (copy-sequence (car (cdr form))))
- (body (cdr (cdr form)))
- (tail binds))
- (while tail
- (if (symbolp (car tail))
- (if (not (memq (car tail) all-vars))
- (setq all-vars (cons (car tail) all-vars)))
- (if (consp (car tail))
- (progn
- (if (not (memq (car (car tail)) all-vars))
- (setq all-vars (cons (car (car tail)) all-vars)))
- (setcar tail
- (list (car (car tail))
- (byte-compile-find-vars-1 (car (cdr (car tail)))))))))
- (setq tail (cdr tail)))
- (cons (car form)
- (cons binds
- (mapcar 'byte-compile-find-vars-1 body)))))
- ((or (eq (car form) 'function)
- ;; Because condition-case is compiled by breaking out
- ;; all its subexpressions and compiling them separately,
- ;; we regard it here as containing nothing but constants.
- (eq (car form) 'condition-case))
- form)
- ((eq (car form) 'catch)
- ;; catch is almost like condition case, but we
- ;; treat its first argument normally.
- (cons 'catch
- (cons (byte-compile-find-vars-1 (nth 1 form))
- (nthcdr 2 form))))
- ((eq (car form) 'cond)
- (let* ((clauses (copy-sequence (cdr form)))
- (tail clauses))
- (while tail
- (setcar tail (mapcar 'byte-compile-find-vars-1 (car tail)))
- (setq tail (cdr tail)))
- (cons 'cond clauses)))
- ((not (eq form (setq form (macroexpand form byte-compile-macro-environment))))
- (byte-compile-find-vars-1 form))
- ((symbolp (car form))
- (cons (car form) (mapcar 'byte-compile-find-vars-1 (cdr form))))
- (t (mapcar 'byte-compile-find-vars-1 form))))
-
- ;; This is the recursive entry point for compiling each subform of an expression.
-
- ;; Note that handler functions SHOULD NOT increment byte-compile-depth
- ;; for the values they are returning! That is done on return here.
- ;; Handlers should make sure that the depth on exit is the same as
- ;; it was when the handler was called.
-
- (defun byte-compile-form (form)
- (setq form (macroexpand form byte-compile-macro-environment))
- (cond ((eq form 'nil)
- (byte-compile-constant form))
- ((eq form 't)
- (byte-compile-constant form))
- ((symbolp form)
- (byte-compile-variable-ref 'byte-varref form))
- ((not (consp form))
- (byte-compile-constant form))
- ((not (symbolp (car form)))
- (if (eq (car-safe (car form)) 'lambda)
- (let ((vars (nth 1 (car form)))
- (vals (cdr form))
- result)
- (while vars
- (setq result (cons (list (car vars) (car vals)) result))
- (setq vars (cdr vars) vals (cdr vals)))
- (byte-compile-form
- (cons 'let (cons (nreverse result) (cdr (cdr (car form)))))))
- (byte-compile-normal-call form)))
- (t
- (let ((handler (get (car form) 'byte-compile)))
- (if handler
- (funcall handler form)
- (byte-compile-normal-call form)))))
- (setq byte-compile-maxdepth
- (max byte-compile-maxdepth
- (setq byte-compile-depth (1+ byte-compile-depth)))))
-
- (defun byte-compile-normal-call (form)
- (byte-compile-push-constant (car form))
- (let ((copy (cdr form)))
- (while copy (byte-compile-form (car copy)) (setq copy (cdr copy))))
- (byte-compile-out 'byte-call (length (cdr form)))
- (setq byte-compile-depth (- byte-compile-depth (length (cdr form)))))
-
- (defun byte-compile-variable-ref (base-op var)
- (let ((data (assq var byte-compile-constants)))
- (if data
- (byte-compile-out base-op (cdr data))
- (error (format "Variable %s seen on pass 2 of byte compiler but not pass 1"
- (prin1-to-string var))))))
-
- ;; Use this when the value of a form is a constant,
- ;; because byte-compile-depth will be incremented accordingly
- ;; on return to byte-compile-form, so it should not be done by the handler.
- (defun byte-compile-constant (const)
- (let ((data (if (stringp const)
- (assoc const byte-compile-constants)
- (assq const byte-compile-constants))))
- (if data
- (byte-compile-out-const (cdr data))
- (setq byte-compile-constants
- (cons (cons const (setq byte-compile-constnum (1+ byte-compile-constnum)))
- byte-compile-constants))
- (byte-compile-out-const byte-compile-constnum))))
-
- ;; Use this for a constant that is not the value of its containing form.
- ;; Note that the calling function must explicitly decrement byte-compile-depth
- ;; (or perhaps call byte-compile-discard to do so)
- ;; for the word pushed by this function.
- (defun byte-compile-push-constant (const)
- (byte-compile-constant const)
- (setq byte-compile-maxdepth
- (max byte-compile-maxdepth
- (setq byte-compile-depth (1+ byte-compile-depth)))))
-
- ;; Compile those primitive ordinary functions
- ;; which have special byte codes just for speed.
-
- (put 'point 'byte-compile 'byte-compile-no-args)
- (put 'point 'byte-opcode 'byte-point)
-
- (put 'dot 'byte-compile 'byte-compile-no-args)
- (put 'dot 'byte-opcode 'byte-point)
-
- ;(put 'mark 'byte-compile 'byte-compile-no-args)
- ;(put 'mark 'byte-opcode 'byte-mark)
-
- (put 'point-max 'byte-compile 'byte-compile-no-args)
- (put 'point-max 'byte-opcode 'byte-point-max)
-
- (put 'point-min 'byte-compile 'byte-compile-no-args)
- (put 'point-min 'byte-opcode 'byte-point-min)
-
- (put 'dot-max 'byte-compile 'byte-compile-no-args)
- (put 'dot-max 'byte-opcode 'byte-point-max)
-
- (put 'dot-min 'byte-compile 'byte-compile-no-args)
- (put 'dot-min 'byte-opcode 'byte-point-min)
-
- (put 'following-char 'byte-compile 'byte-compile-no-args)
- (put 'following-char 'byte-opcode 'byte-following-char)
-
- (put 'preceding-char 'byte-compile 'byte-compile-no-args)
- (put 'preceding-char 'byte-opcode 'byte-preceding-char)
-
- (put 'current-column 'byte-compile 'byte-compile-no-args)
- (put 'current-column 'byte-opcode 'byte-current-column)
-
- (put 'eolp 'byte-compile 'byte-compile-no-args)
- (put 'eolp 'byte-opcode 'byte-eolp)
-
- (put 'eobp 'byte-compile 'byte-compile-no-args)
- (put 'eobp 'byte-opcode 'byte-eobp)
-
- (put 'bolp 'byte-compile 'byte-compile-no-args)
- (put 'bolp 'byte-opcode 'byte-bolp)
-
- (put 'bobp 'byte-compile 'byte-compile-no-args)
- (put 'bobp 'byte-opcode 'byte-bobp)
-
- (put 'current-buffer 'byte-compile 'byte-compile-no-args)
- (put 'current-buffer 'byte-opcode 'byte-current-buffer)
-
- (put 'read-char 'byte-compile 'byte-compile-no-args)
- (put 'read-char 'byte-opcode 'byte-read-char)
-
-
- (put 'symbolp 'byte-compile 'byte-compile-one-arg)
- (put 'symbolp 'byte-opcode 'byte-symbolp)
-
- (put 'consp 'byte-compile 'byte-compile-one-arg)
- (put 'consp 'byte-opcode 'byte-consp)
-
- (put 'stringp 'byte-compile 'byte-compile-one-arg)
- (put 'stringp 'byte-opcode 'byte-stringp)
-
- (put 'listp 'byte-compile 'byte-compile-one-arg)
- (put 'listp 'byte-opcode 'byte-listp)
-
- (put 'not 'byte-compile 'byte-compile-one-arg)
- (put 'not 'byte-opcode 'byte-not)
-
- (put 'null 'byte-compile 'byte-compile-one-arg)
- (put 'null 'byte-opcode 'byte-not)
-
- (put 'car 'byte-compile 'byte-compile-one-arg)
- (put 'car 'byte-opcode 'byte-car)
-
- (put 'cdr 'byte-compile 'byte-compile-one-arg)
- (put 'cdr 'byte-opcode 'byte-cdr)
-
- (put 'length 'byte-compile 'byte-compile-one-arg)
- (put 'length 'byte-opcode 'byte-length)
-
- (put 'symbol-value 'byte-compile 'byte-compile-one-arg)
- (put 'symbol-value 'byte-opcode 'byte-symbol-value)
-
- (put 'symbol-function 'byte-compile 'byte-compile-one-arg)
- (put 'symbol-function 'byte-opcode 'byte-symbol-function)
-
- (put '1+ 'byte-compile 'byte-compile-one-arg)
- (put '1+ 'byte-opcode 'byte-add1)
-
- (put '1- 'byte-compile 'byte-compile-one-arg)
- (put '1- 'byte-opcode 'byte-sub1)
-
- (put 'goto-char 'byte-compile 'byte-compile-one-arg)
- (put 'goto-char 'byte-opcode 'byte-goto-char)
-
- (put 'char-after 'byte-compile 'byte-compile-one-arg)
- (put 'char-after 'byte-opcode 'byte-char-after)
-
- (put 'set-buffer 'byte-compile 'byte-compile-one-arg)
- (put 'set-buffer 'byte-opcode 'byte-set-buffer)
-
- ;set-mark turns out to be too unimportant for its own opcode.
- ;(put 'set-mark 'byte-compile 'byte-compile-one-arg)
- ;(put 'set-mark 'byte-opcode 'byte-set-mark)
-
-
- (put 'eq 'byte-compile 'byte-compile-two-args)
- (put 'eq 'byte-opcode 'byte-eq)
- (put 'eql 'byte-compile 'byte-compile-two-args)
- (put 'eql 'byte-opcode 'byte-eq)
-
- (put 'memq 'byte-compile 'byte-compile-two-args)
- (put 'memq 'byte-opcode 'byte-memq)
-
- (put 'cons 'byte-compile 'byte-compile-two-args)
- (put 'cons 'byte-opcode 'byte-cons)
-
- (put 'aref 'byte-compile 'byte-compile-two-args)
- (put 'aref 'byte-opcode 'byte-aref)
-
- (put 'set 'byte-compile 'byte-compile-two-args)
- (put 'set 'byte-opcode 'byte-set)
-
- (put 'fset 'byte-compile 'byte-compile-two-args)
- (put 'fset 'byte-opcode 'byte-fset)
-
- (put '= 'byte-compile 'byte-compile-two-args)
- (put '= 'byte-opcode 'byte-eqlsign)
-
- (put '< 'byte-compile 'byte-compile-two-args)
- (put '< 'byte-opcode 'byte-lss)
-
- (put '> 'byte-compile 'byte-compile-two-args)
- (put '> 'byte-opcode 'byte-gtr)
-
- (put '<= 'byte-compile 'byte-compile-two-args)
- (put '<= 'byte-opcode 'byte-leq)
-
- (put '>= 'byte-compile 'byte-compile-two-args)
- (put '>= 'byte-opcode 'byte-geq)
-
- (put 'get 'byte-compile 'byte-compile-two-args)
- (put 'get 'byte-opcode 'byte-get)
-
- (put 'nth 'byte-compile 'byte-compile-two-args)
- (put 'nth 'byte-opcode 'byte-nth)
-
- (put 'aset 'byte-compile 'byte-compile-three-args)
- (put 'aset 'byte-opcode 'byte-aset)
-
- (defun byte-compile-no-args (form)
- (if (/= (length form) 1)
- ;; get run-time wrong-number-of-args error.
- ;; Would be nice if there were some way to do
- ;; compile-time warnings.
- (byte-compile-normal-call form)
- (byte-compile-out (symbol-value (get (car form) 'byte-opcode)) 0)))
-
- (defun byte-compile-one-arg (form)
- (if (/= (length form) 2)
- (byte-compile-normal-call form)
- (byte-compile-form (car (cdr form))) ;; Push the argument
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-out (symbol-value (get (car form) 'byte-opcode)) 0)))
-
- (defun byte-compile-two-args (form)
- (if (/= (length form) 3)
- (byte-compile-normal-call form)
- (byte-compile-form (car (cdr form))) ;; Push the arguments
- (byte-compile-form (nth 2 form))
- (setq byte-compile-depth (- byte-compile-depth 2))
- (byte-compile-out (symbol-value (get (car form) 'byte-opcode)) 0)))
-
- (defun byte-compile-three-args (form)
- (if (/= (length form) 4)
- (byte-compile-normal-call form)
- (byte-compile-form (car (cdr form))) ;; Push the arguments
- (byte-compile-form (nth 2 form))
- (byte-compile-form (nth 3 form))
- (setq byte-compile-depth (- byte-compile-depth 3))
- (byte-compile-out (symbol-value (get (car form) 'byte-opcode)) 0)))
-
- (put 'substring 'byte-compile 'byte-compile-substring)
- (defun byte-compile-substring (form)
- (if (or (> (length form) 4)
- (< (length form) 2))
- (byte-compile-normal-call form)
- (byte-compile-form (nth 1 form))
- (byte-compile-form (or (nth 2 form) ''nil)) ;Optional arguments
- (byte-compile-form (or (nth 3 form) ''nil))
- (setq byte-compile-depth (- byte-compile-depth 3))
- (byte-compile-out byte-substring 0)))
-
- (put 'interactive-p 'byte-compile 'byte-compile-interactive-p)
- (defun byte-compile-interactive-p (form)
- (byte-compile-out byte-interactive-p 0))
-
- (put 'list 'byte-compile 'byte-compile-list)
- (defun byte-compile-list (form)
- (let ((len (length form)))
- (if (= len 1)
- (byte-compile-constant nil)
- (if (< len 6)
- (let ((args (cdr form)))
- (while args
- (byte-compile-form (car args))
- (setq args (cdr args)))
- (setq byte-compile-depth (- byte-compile-depth (1- len)))
- (byte-compile-out (symbol-value
- (nth (- len 2)
- '(byte-list1 byte-list2 byte-list3 byte-list4)))
- 0))
- (byte-compile-normal-call form)))))
-
- (put 'concat 'byte-compile 'byte-compile-concat)
- (defun byte-compile-concat (form)
- (let ((len (length form)))
- (cond ((= len 1)
- (byte-compile-form ""))
- ((= len 2)
- ;; Concat of one arg is not a no-op if arg is not a string.
- (byte-compile-normal-call form))
- ((< len 6)
- (let ((args (cdr form)))
- (while args
- (byte-compile-form (car args))
- (setq args (cdr args)))
- (setq byte-compile-depth (- byte-compile-depth (1- len)))
- (byte-compile-out
- (symbol-value (nth (- len 3)
- '(byte-concat2 byte-concat3 byte-concat4)))
- 0)))
- (t
- (byte-compile-normal-call form)))))
-
- (put '- 'byte-compile 'byte-compile-minus)
- (defun byte-compile-minus (form)
- (let ((len (length form)))
- (cond ((= len 2)
- (byte-compile-form (car (cdr form)))
- (setq byte-compile-depth (- byte-compile-depth 1))
- (byte-compile-out byte-negate 0))
- ((= len 3)
- (byte-compile-form (car (cdr form)))
- (byte-compile-form (nth 2 form))
- (setq byte-compile-depth (- byte-compile-depth 2))
- (byte-compile-out byte-diff 0))
- (t (byte-compile-normal-call form)))))
-
- (put '+ 'byte-compile 'byte-compile-maybe-two-args)
- (put '+ 'byte-opcode 'byte-plus)
-
- (put 'max 'byte-compile 'byte-compile-maybe-two-args)
- (put 'max 'byte-opcode 'byte-max)
-
- (put 'min 'byte-compile 'byte-compile-maybe-two-args)
- (put 'min 'byte-opcode 'byte-min)
-
- (defun byte-compile-maybe-two-args (form)
- (let ((len (length form)))
- (if (= len 3)
- (progn
- (byte-compile-form (car (cdr form)))
- (byte-compile-form (nth 2 form))
- (setq byte-compile-depth (- byte-compile-depth 2))
- (byte-compile-out (symbol-value (get (car form) 'byte-opcode)) 0))
- (byte-compile-normal-call form))))
-
- (put 'function 'byte-compile 'byte-compile-function-form)
- (defun byte-compile-function-form (form)
- (cond ((symbolp (car (cdr form)))
- (byte-compile-form
- (list 'symbol-function (list 'quote (nth 1 form)))))
- (t
- (byte-compile-constant (byte-compile-lambda (car (cdr form)))))))
-
- (put 'indent-to 'byte-compile 'byte-compile-indent-to)
- (defun byte-compile-indent-to (form)
- (let ((len (length form)))
- (if (= len 2)
- (progn
- (byte-compile-form (car (cdr form)))
- (setq byte-compile-depth (- byte-compile-depth 1))
- (byte-compile-out byte-indent-to 0))
- (byte-compile-normal-call form))))
-
- (put 'insert 'byte-compile 'byte-compile-insert)
- (defun byte-compile-insert (form)
- (let ((len (length form)))
- (if (< len 3)
- (let ((args (cdr form)))
- (while args
- (byte-compile-form (car args))
- (setq byte-compile-depth (- byte-compile-depth 1))
- (byte-compile-out byte-insert 0)
- (setq args (cdr args))))
- (byte-compile-normal-call form))))
-
- (put 'setq-default 'byte-compile 'byte-compile-setq-default)
- (defun byte-compile-setq-default (form)
- (byte-compile-form (cons 'set-default (cons (list 'quote (nth 1 form))
- (nthcdr 2 form)))))
-
- (put 'quote 'byte-compile 'byte-compile-quote)
- (defun byte-compile-quote (form)
- (byte-compile-constant (car (cdr form))))
-
- (put 'setq 'byte-compile 'byte-compile-setq)
- (defun byte-compile-setq (form)
- (let ((args (cdr form)))
- (if args
- (while args
- (byte-compile-form (car (cdr args)))
- (if (null (cdr (cdr args)))
- (progn
- (byte-compile-out 'byte-dup 0)
- (setq byte-compile-maxdepth (max byte-compile-maxdepth (1+ byte-compile-depth)))))
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-variable-ref 'byte-varset (car args))
- (setq args (cdr (cdr args))))
- ;; (setq), with no arguments.
- (byte-compile-constant nil))))
-
- (put 'let 'byte-compile 'byte-compile-let)
- (defun byte-compile-let (form)
- (let ((varlist (car (cdr form))))
- (while varlist
- (if (symbolp (car varlist))
- (byte-compile-push-constant nil)
- (byte-compile-form (car (cdr (car varlist)))))
- (setq varlist (cdr varlist))))
- (let ((varlist (reverse (car (cdr form)))))
- (setq byte-compile-depth (- byte-compile-depth (length varlist)))
- (while varlist
- (if (symbolp (car varlist))
- (byte-compile-variable-ref 'byte-varbind (car varlist))
- (byte-compile-variable-ref 'byte-varbind (car (car varlist))))
- (setq varlist (cdr varlist))))
- (byte-compile-body (cdr (cdr form)))
- (byte-compile-out 'byte-unbind (length (car (cdr form)))))
-
- (put 'let* 'byte-compile 'byte-compile-let*)
- (defun byte-compile-let* (form)
- (let ((varlist (car (cdr form))))
- (while varlist
- (if (symbolp (car varlist))
- (byte-compile-push-constant nil)
- (byte-compile-form (car (cdr (car varlist)))))
- (setq byte-compile-depth (1- byte-compile-depth))
- (if (symbolp (car varlist))
- (byte-compile-variable-ref 'byte-varbind (car varlist))
- (byte-compile-variable-ref 'byte-varbind (car (car varlist))))
- (setq varlist (cdr varlist))))
- (byte-compile-body (cdr (cdr form)))
- (byte-compile-out 'byte-unbind (length (car (cdr form)))))
-
- (put 'save-excursion 'byte-compile 'byte-compile-save-excursion)
- (defun byte-compile-save-excursion (form)
- (byte-compile-out 'byte-save-excursion 0)
- (byte-compile-body (cdr form))
- (byte-compile-out 'byte-unbind 1))
-
- (put 'save-restriction 'byte-compile 'byte-compile-save-restriction)
- (defun byte-compile-save-restriction (form)
- (byte-compile-out 'byte-save-restriction 0)
- (byte-compile-body (cdr form))
- (byte-compile-out 'byte-unbind 1))
-
- (put 'with-output-to-temp-buffer 'byte-compile 'byte-compile-with-output-to-temp-buffer)
- (defun byte-compile-with-output-to-temp-buffer (form)
- (byte-compile-form (car (cdr form)))
- (byte-compile-out 'byte-temp-output-buffer-setup 0)
- (byte-compile-body (cdr (cdr form)))
- (byte-compile-out 'byte-temp-output-buffer-show 0)
- (setq byte-compile-depth (1- byte-compile-depth)))
-
- (put 'progn 'byte-compile 'byte-compile-progn)
- (defun byte-compile-progn (form)
- (byte-compile-body (cdr form)))
-
- (put 'interactive 'byte-compile 'byte-compile-noop)
- (defun byte-compile-noop (form)
- (byte-compile-constant nil))
-
- (defun byte-compile-body (body)
- (if (null body)
- (byte-compile-constant nil)
- (while body
- (byte-compile-form (car body))
- (if (cdr body)
- (byte-compile-discard)
- ;; Convention is this will be counted after we return.
- (setq byte-compile-depth (1- byte-compile-depth)))
- (setq body (cdr body)))))
-
- (put 'prog1 'byte-compile 'byte-compile-prog1)
- (defun byte-compile-prog1 (form)
- (byte-compile-form (car (cdr form)))
- (if (cdr (cdr form))
- (progn
- (byte-compile-body (cdr (cdr form)))
- ;; This discards the value pushed by ..-body
- ;; (which is not counted now in byte-compile-depth)
- ;; and decrements byte-compile-depth for the value
- ;; pushed by byte-compile-form above, which by convention
- ;; will be counted in byte-compile-depth after we return.
- (byte-compile-discard))))
-
- (put 'prog2 'byte-compile 'byte-compile-prog2)
- (defun byte-compile-prog2 (form)
- (byte-compile-form (car (cdr form)))
- (byte-compile-discard)
- (byte-compile-form (nth 2 form))
- (if (cdr (cdr (cdr form)))
- (progn
- (byte-compile-body (cdr (cdr (cdr form))))
- (byte-compile-discard))))
-
- (defun byte-compile-discard ()
- (byte-compile-out 'byte-discard 0)
- (setq byte-compile-depth (1- byte-compile-depth)))
-
- (put 'if 'byte-compile 'byte-compile-if)
- (defun byte-compile-if (form)
- (if (null (nthcdr 3 form))
- ;; No else-forms
- (let ((donetag (byte-compile-make-tag)))
- (byte-compile-form (car (cdr form)))
- (byte-compile-goto 'byte-goto-if-nil-else-pop donetag)
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-form (nth 2 form))
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-out-tag donetag))
- (let ((donetag (byte-compile-make-tag)) (elsetag (byte-compile-make-tag)))
- (byte-compile-form (car (cdr form)))
- (byte-compile-goto 'byte-goto-if-nil elsetag)
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-form (nth 2 form))
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-goto 'byte-goto donetag)
- (byte-compile-out-tag elsetag)
- (byte-compile-body (cdr (cdr (cdr form))))
- (byte-compile-out-tag donetag))))
-
- (put 'cond 'byte-compile 'byte-compile-cond)
- (defun byte-compile-cond (form)
- (if (cdr form)
- (byte-compile-cond-1 (cdr form))
- (byte-compile-constant nil)))
-
- (defun byte-compile-cond-1 (clauses)
- (if (or (eq (car (car clauses)) t)
- (and (eq (car-safe (car (car clauses))) 'quote)
- (car-safe (cdr-safe (car (car clauses))))))
- ;; Unconditional clause
- (if (cdr (car clauses))
- (byte-compile-body (cdr (car clauses)))
- (byte-compile-form (car (car clauses))))
- (if (null (cdr clauses))
- ;; Only one clause
- (let ((donetag (byte-compile-make-tag)))
- (byte-compile-form (car (car clauses)))
- (cond ((cdr (car clauses))
- (byte-compile-goto 'byte-goto-if-nil-else-pop donetag)
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-body (cdr (car clauses)))
- (byte-compile-out-tag donetag))))
- (let ((donetag (byte-compile-make-tag))
- (elsetag (byte-compile-make-tag)))
- (byte-compile-form (car (car clauses)))
- (if (null (cdr (car clauses)))
- ;; First clause is a singleton.
- (progn
- (byte-compile-goto 'byte-goto-if-not-nil-else-pop donetag)
- (setq byte-compile-depth (1- byte-compile-depth)))
- (byte-compile-goto 'byte-goto-if-nil elsetag)
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-body (cdr (car clauses)))
- (byte-compile-goto 'byte-goto donetag)
- (byte-compile-out-tag elsetag))
- (byte-compile-cond-1 (cdr clauses))
- (byte-compile-out-tag donetag)))))
-
- (put 'and 'byte-compile 'byte-compile-and)
- (defun byte-compile-and (form)
- (let ((failtag (byte-compile-make-tag))
- (args (cdr form)))
- (if (null args)
- (progn
- (byte-compile-form t)
- (setq byte-compile-depth (1- byte-compile-depth)))
- (while args
- (byte-compile-form (car args))
- (setq byte-compile-depth (1- byte-compile-depth))
- (if (null (cdr args))
- (byte-compile-out-tag failtag)
- (byte-compile-goto 'byte-goto-if-nil-else-pop failtag))
- (setq args (cdr args))))))
-
- (put 'or 'byte-compile 'byte-compile-or)
- (defun byte-compile-or (form)
- (let ((wintag (byte-compile-make-tag))
- (args (cdr form)))
- (if (null args)
- (byte-compile-constant nil)
- (while args
- (byte-compile-form (car args))
- (setq byte-compile-depth (1- byte-compile-depth))
- (if (null (cdr args))
- (byte-compile-out-tag wintag)
- (byte-compile-goto 'byte-goto-if-not-nil-else-pop wintag))
- (setq args (cdr args))))))
-
- (put 'while 'byte-compile 'byte-compile-while)
- (defun byte-compile-while (form)
- (let ((endtag (byte-compile-make-tag))
- (looptag (byte-compile-make-tag))
- (args (cdr (cdr form))))
- (byte-compile-out-tag looptag)
- (byte-compile-form (car (cdr form)))
- (byte-compile-goto 'byte-goto-if-nil-else-pop endtag)
- (byte-compile-body (cdr (cdr form)))
- (byte-compile-discard)
- (byte-compile-goto 'byte-goto looptag)
- (byte-compile-out-tag endtag)))
-
- (put 'catch 'byte-compile 'byte-compile-catch)
- (defun byte-compile-catch (form)
- (byte-compile-form (car (cdr form)))
- (byte-compile-push-constant (byte-compile-top-level (cons 'progn (cdr (cdr form)))))
- (setq byte-compile-depth (- byte-compile-depth 2))
- (byte-compile-out 'byte-catch 0))
-
- (put 'save-window-excursion 'byte-compile 'byte-compile-save-window-excursion)
- (defun byte-compile-save-window-excursion (form)
- (byte-compile-push-constant
- (list (byte-compile-top-level (cons 'progn (cdr form)))))
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-out 'byte-save-window-excursion 0))
-
- (put 'unwind-protect 'byte-compile 'byte-compile-unwind-protect)
- (defun byte-compile-unwind-protect (form)
- (byte-compile-push-constant
- (list (byte-compile-top-level (cons 'progn (cdr (cdr form))))))
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-out 'byte-unwind-protect 0)
- (byte-compile-form (car (cdr form)))
- (setq byte-compile-depth (1- byte-compile-depth))
- (byte-compile-out 'byte-unbind 1))
-
- (put 'condition-case 'byte-compile 'byte-compile-condition-case)
- (defun byte-compile-condition-case (form)
- (byte-compile-push-constant (car (cdr form)))
- (byte-compile-push-constant (byte-compile-top-level (nth 2 form)))
- (let ((clauses (cdr (cdr (cdr form))))
- compiled-clauses)
- (while clauses
- (let ((clause (car clauses)))
- (setq compiled-clauses
- (cons (list (car clause)
- (byte-compile-top-level (cons 'progn (cdr clause))))
- compiled-clauses)))
- (setq clauses (cdr clauses)))
- (byte-compile-push-constant (nreverse compiled-clauses)))
- (setq byte-compile-depth (- byte-compile-depth 3))
- (byte-compile-out 'byte-condition-case 0))
-
- (defun byte-compile-make-tag ()
- (cons nil nil))
-
- (defun byte-compile-out-tag (tag)
- (let ((uses (car tag)))
- (setcar tag byte-compile-pc)
- (while uses
- (byte-compile-store-goto (car uses) byte-compile-pc)
- (setq uses (cdr uses)))))
-
- (defun byte-compile-goto (opcode tag)
- (byte-compile-out opcode 0)
- (if (integerp (car tag))
- (byte-compile-store-goto byte-compile-pc (car tag))
- (setcar tag (cons byte-compile-pc (car tag))))
- (setq byte-compile-pc (+ byte-compile-pc 2)))
-
- (defun byte-compile-store-goto (at-pc to-pc)
- (setq byte-compile-output
- (cons (cons at-pc (logand to-pc 255))
- byte-compile-output))
- (setq byte-compile-output
- (cons (cons (1+ at-pc) (lsh to-pc -8))
- byte-compile-output)))
-
- (defun byte-compile-out (opcode offset)
- (setq opcode (eval opcode))
- (if (< offset 6)
- (byte-compile-out-1 (+ opcode offset))
- (if (< offset 256)
- (progn
- (byte-compile-out-1 (+ opcode 6))
- (byte-compile-out-1 offset))
- (byte-compile-out-1 (+ opcode 7))
- (byte-compile-out-1 (logand offset 255))
- (byte-compile-out-1 (lsh offset -8)))))
-
- (defun byte-compile-out-const (offset)
- (if (< offset byte-constant-limit)
- (byte-compile-out-1 (+ byte-constant offset))
- (byte-compile-out-1 byte-constant2)
- (byte-compile-out-1 (logand offset 255))
- (byte-compile-out-1 (lsh offset -8))))
-
- (defun byte-compile-out-1 (code)
- (setq byte-compile-output
- (cons (cons byte-compile-pc code)
- byte-compile-output))
- (setq byte-compile-pc (1+ byte-compile-pc)))
-
- ;;; by crl@newton.purdue.edu
- ;;; Only works noninteractively.
- (defun batch-byte-compile ()
- "Runs byte-compile-file on the files remaining on the command line.
- Must be used only with -batch, and kills emacs on completion.
- Each file will be processed even if an error occurred previously.
- For example, invoke \"emacs -batch -f batch-byte-compile $emacs/ ~/*.el\""
- ;; command-line-args-left is what is left of the command line (from startup.el)
- (if (not noninteractive)
- (error "batch-byte-compile is to be used only with -batch"))
- (let ((error nil))
- (while command-line-args-left
- (if (file-directory-p (expand-file-name (car command-line-args-left)))
- (let ((files (directory-files (car command-line-args-left)))
- source dest)
- (while files
- (if (and (string-match ".el$" (car files))
- (not (auto-save-file-name-p (car files)))
- (setq source (expand-file-name (car files)
- (car command-line-args-left)))
- (setq dest (concat (file-name-sans-versions source) "c"))
- (file-exists-p dest)
- (file-newer-than-file-p source dest))
- (if (null (batch-byte-compile-file source))
- (setq error t)))
- (setq files (cdr files))))
- (if (null (batch-byte-compile-file (car command-line-args-left)))
- (setq error t)))
- (setq command-line-args-left (cdr command-line-args-left)))
- (message "Done")
- (kill-emacs (if error 1 0))))
-
- (defun batch-byte-compile-file (file)
- (condition-case err
- (progn (byte-compile-file file) t)
- (error
- (message (if (cdr err)
- ">>Error occurred processing %s: %s (%s)"
- ">>Error occurred processing %s: %s")
- file
- (get (car err) 'error-message)
- (prin1-to-string (cdr err)))
- nil)))
-