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 }