add more byte-code assertions and better failure output -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-03 Ben Wing <ben@xemacs.org> * alloc.c (Fmake_byte_code): * bytecode.h: * lisp.h: * lread.c: * lread.c (readevalloop): * lread.c (Fread): * lread.c (Fread_from_string): * lread.c (read_list_conser): * lread.c (read_list): * lread.c (vars_of_lread): * symbols.c: * symbols.c (Fdefine_function): Turn on the "compiled-function annotation hack". Implement it properly by hooking into Fdefalias(). Note in the docstring to `defalias' that we do this. Remove some old broken code and change code that implemented the old kludgy way of hooking into the Lisp reader into bracketed by `#ifdef COMPILED_FUNCTION_ANNOTATION_HACK_OLD_WAY', which is not enabled. Also enable byte-code metering when DEBUG_XEMACS -- this is a form of profiling for computing histograms of which sequences of two bytecodes are used most often. * bytecode-ops.h: * bytecode-ops.h (OPCODE): New file. Extract out all the opcodes and declare them using OPCODE(), a bit like frame slots and such. This way the file can be included multiple times if necessary to iterate multiple times over the byte opcodes. * bytecode.c: * bytecode.c (NUM_REMEMBERED_BYTE_OPS): * bytecode.c (OPCODE): * bytecode.c (assert_failed_with_remembered_ops): * bytecode.c (READ_UINT_2): * bytecode.c (READ_INT_1): * bytecode.c (READ_INT_2): * bytecode.c (PEEK_INT_1): * bytecode.c (PEEK_INT_2): * bytecode.c (JUMP_RELATIVE): * bytecode.c (JUMP_NEXT): * bytecode.c (PUSH): * bytecode.c (POP_WITH_MULTIPLE_VALUES): * bytecode.c (DISCARD): * bytecode.c (UNUSED): * bytecode.c (optimize_byte_code): * bytecode.c (optimize_compiled_function): * bytecode.c (Fbyte_code): * bytecode.c (vars_of_bytecode): * bytecode.c (init_opcode_table_multi_op): * bytecode.c (reinit_vars_of_bytecode): * emacs.c (main_1): * eval.c (funcall_compiled_function): * symsinit.h: Any time we change either the instruction pointer or the stack pointer, assert that we're going to move it to a valid location. This should catch failures right when they occur rather than sometime later. This requires that we pass in another couple of parameters into some functions (only with error-checking enabled, see below). Also keep track, using a circular queue, of the last 100 byte opcodes seen, and when we hit an assert failure during byte-code execution, output the contents of the queue in a nice readable fashion. This requires that bytecode-ops.h be included a second time so that a table mapping opcodes to the name of their operation can be constructed. This table is constructed in new function reinit_vars_of_bytecode(). Everything in the last two paras happens only when ERROR_CHECK_BYTE_CODE. Add some longish comments describing how the arrays that hold the stack and instructions, and the pointers used to access them, work. * gc.c: Import some code from my `latest-fix' workspace to mark the staticpro's in order from lowest to highest, rather than highest to lowest, so it's easier to debug when something goes wrong. * lisp.h (abort_with_message): Renamed from abort_with_msg(). * symbols.c (defsymbol_massage_name_1): * symbols.c (defsymbol_nodump): * symbols.c (defsymbol): * symbols.c (defkeyword): * symeval.h (DEFVAR_SYMVAL_FWD_OBJECT): Make the various calls to staticpro() instead call staticpro_1(), passing in the name of the C var being staticpro'ed, so that it shows up in staticpro_names. Otherwise staticpro_names just has 1000+ copies of the word `location'.

;;; thai.el --- support for Thai -*- coding: iso-2022-7bit; -*-

;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
;; Licensed to the Free Software Foundation.

;; Keywords: multilingual, Thai

;; 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: Emacs 21.1 (language/thai.el).

;;; Commentary:

;; For Thai, the character set TIS620 is supported.

;; #### I don't know how this differs from the existing thai-xtis.el so
;; I'm leaving it commented out.

;;; Code:

; (make-charset 'thai-tis620 
; 	      "Right-Hand Part of TIS620.2533 (Thai): ISO-IR-166"
; 	      '(dimension
; 		1
; 		registry "TIS620"
; 		chars 96
; 		columns 1
; 		direction l2r
; 		final ?T
; 		graphic 1
; 		short-name "RHP of TIS620"
; 		long-name "RHP of Thai (TIS620): ISO-IR-166"
; 		))

; ; (make-coding-system
; ;  'thai-tis620 2 ?T
; ;  "8-bit encoding for ASCII (MSB=0) and Thai TIS620 (MSB=1)"
; ;  '(ascii thai-tis620 nil nil
; ;    nil ascii-eol)
; ;  '((safe-charsets ascii thai-tis620)
; ;    (post-read-conversion . thai-post-read-conversion)))

; (make-coding-system
;  'thai-tis620 'iso2022 "Thai/TIS620"
;  '(charset-g0 ascii
;    charset-g1 thai-tis620
;    mnemonic "Thai"
;    safe-charsets (ascii thai-tis620)
;    post-read-conversion thai-post-read-conversion
;    documentation "8-bit encoding for ASCII (MSB=0) and Thai TIS620 (MSB=1)"))

; (define-coding-system-alias 'th-tis620 'thai-tis620)
; (define-coding-system-alias 'tis620 'thai-tis620)
; (define-coding-system-alias 'tis-620 'thai-tis620)

; (set-language-info-alist
;  "Thai" '((tutorial . "TUTORIAL.th")
; 	  (charset thai-tis620)
; 	  (coding-system thai-tis620)
; 	  (coding-priority thai-tis620)
; 	  (nonascii-translation . thai-tis620)
; 	  (input-method . "thai-kesmanee")
; 	  (unibyte-display . thai-tis620)
; 	  (features thai-util)
; 	  (sample-text 
; 	   . (thai-compose-string
; 	      (copy-sequence "Thai (,T@RIRd7B(B)		,TJ0GQ1J04U1$0CQ1:(B, ,TJ0GQ1J04U10$h1P(B")))
; 	  (documentation . t)))


;; Register a function to compose Thai characters.
; (put-char-table 'thai-tis620
; 		'(("\\c0\\c4\\|\\c0\\(\\c2\\|\\c3\\)\\c4?" .
; 		   thai-composition-function))
; 		composition-function-table)

(provide 'thai)

;;; thai.el ends here