| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.nashorn.internal.scripts; |
| |
| import jdk.nashorn.api.scripting.JSObject; |
| |
| /** |
| * Nashorn's StructureLoader and ScriptLoader instances load |
| * this class in the respective dynamic modules created. This |
| * class is never loaded by Nashorn's own class loader. The |
| * .class bytes of this class are loaded as resource by the |
| * {@link jdk.nashorn.internal.runtime.NashornLoader} class. This class |
| * exists in this package because nashorn structures and scripts |
| * modules use this package name for the only exported package |
| * from those modules. |
| * |
| * Note that this class may be dynamically generated at runtime. |
| * But, this java source is used for ease of reading. |
| */ |
| final class ModuleGraphManipulator { |
| private ModuleGraphManipulator() {} |
| |
| private static final Module MY_MODULE; |
| private static final String MY_PKG_NAME; |
| |
| static { |
| final Class<?> myClass = ModuleGraphManipulator.class; |
| MY_MODULE = myClass.getModule(); |
| final String myName = myClass.getName(); |
| MY_PKG_NAME = myName.substring(0, myName.lastIndexOf('.')); |
| |
| // nashorn's module is the module of the class loader of current class |
| final Module nashornModule = myClass.getClassLoader().getClass().getModule(); |
| |
| // Make sure this class was not loaded by Nashorn's own loader! |
| if (MY_MODULE == nashornModule) { |
| throw new IllegalStateException(myClass + " loaded by wrong loader!"); |
| } |
| |
| // open package to nashorn module |
| MY_MODULE.addOpens(MY_PKG_NAME, nashornModule); |
| } |
| |
| // The following method is reflectively invoked from Nashorn |
| // to add required module export edges. Because this package |
| // itself is qualified exported only to nashorn and this |
| // method is private, unsafe calls are not possible. |
| |
| private static void addExport(final Module otherMod) { |
| MY_MODULE.addExports(MY_PKG_NAME, otherMod); |
| } |
| } |