compiler.js

来自「javascript扩展库」· JavaScript 代码 · 共 54 行

 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  * for the specific language governing rights and limitations under the
  * License.
  *
  * The Original Code is the Narcissus JavaScript engine.
  *
  * The Initial Developer of the Original Code is
  * Brendan Eich <[e-mail]>.
  * Portions created by the Initial Developer are Copyright (C) 2004
  * the Initial Developer. All Rights Reserved.
  *
  * Contributor(s):
  *
  * Alternatively, the contents of this file may be used under the terms of
  * either the GNU General Public License Version 2 or later (the "GPL"), or
  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  * in which case the provisions of the GPL or the LGPL are applicable instead
  * of those above. If you wish to allow use of your version of this file only
  * under the terms of either the GPL or the LGPL, and not to allow others to
  * use your version of this file under the terms of the MPL, indicate your
  * decision by deleting the provisions above and replace them with the notice
  * and other provisions required by the GPL or the LGPL. If you do not delete
  * the provisions above, a recipient may use your version of this file under
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
 
 /*
  * Narcissus - JS implemented in JS.
  *
  * Well-known constants and lookup tables.  Many consts are generated from the
  * tokens table via eval to minimize redundancy, so consumers must be compiled
  * separately to take advantage of the simple switch-case constant propagation
  * done by SpiderMonkey.
  */
 
 /*
  * njs edit:
  * - Neil: combine jsdefs.js and jsparse.js into a single file as part of an
  *   effort to reduce namespace pollution.
  * - Neil: make opTypeName order explicit for env compatibility.  The original
  *   source relied on a SpiderMonkey specific behavior where object key
  *   iteration occurs in the same order in which the keys were defined in 
  *   the object.