1 /*
   2  * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.script.javascript;
  27 import javax.script.*;
  28 import sun.org.mozilla.javascript.internal.*;
  29 
  30 /**
  31  * Represents compiled JavaScript code.
  32  *
  33  * @author Mike Grogan
  34  * @since 1.6
  35  */
  36 final class RhinoCompiledScript extends CompiledScript {
  37 
  38     private RhinoScriptEngine engine;
  39     private Script script;
  40 
  41 
  42     RhinoCompiledScript(RhinoScriptEngine engine, Script script) {
  43         this.engine = engine;
  44         this.script = script;
  45     }
  46 
  47     public Object eval(ScriptContext context) throws ScriptException {
  48 
  49         Object result = null;
  50         Context cx = RhinoScriptEngine.enterContext();
  51         try {
  52 
  53             Scriptable scope = engine.getRuntimeScope(context);
  54             Object ret = script.exec(cx, scope);
  55             result = engine.unwrapReturnValue(ret);
  56         } catch (RhinoException re) {
  57             int line = (line = re.lineNumber()) == 0 ? -1 : line;
  58             String msg;
  59             if (re instanceof JavaScriptException) {
  60                 msg = String.valueOf(((JavaScriptException)re).getValue());
  61             } else {
  62                 msg = re.toString();
  63             }
  64             ScriptException se = new ScriptException(msg, re.sourceName(), line);
  65             se.initCause(re);
  66             throw se;
  67         } finally {
  68             Context.exit();
  69         }
  70 
  71         return result;
  72     }
  73 
  74     public ScriptEngine getEngine() {
  75         return engine;
  76     }
  77 
  78 }