diff options
Diffstat (limited to 'infrastructure/rhino1_7R1/src/org/mozilla/javascript/VMBridge.java')
| -rw-r--r-- | infrastructure/rhino1_7R1/src/org/mozilla/javascript/VMBridge.java | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/VMBridge.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/VMBridge.java deleted file mode 100644 index 5fba4a5..0000000 --- a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/VMBridge.java +++ /dev/null @@ -1,183 +0,0 @@ -/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- - * - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0 - * - * 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 Rhino code, released - * May 6, 1999. - * - * The Initial Developer of the Original Code is - * Netscape Communications Corporation. - * Portions created by the Initial Developer are Copyright (C) 1997-2000 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License Version 2 or later (the "GPL"), in which - * case the provisions of the GPL are applicable instead of those above. If - * you wish to allow use of your version of this file only under the terms of - * the GPL and not to allow others to use your version of this file under the - * MPL, indicate your decision by deleting the provisions above and replacing - * them with the notice and other provisions required by the GPL. If you do - * not delete the provisions above, a recipient may use your version of this - * file under either the MPL or the GPL. - * - * ***** END LICENSE BLOCK ***** */ - -// API class - -package org.mozilla.javascript; - -import java.lang.reflect.Method; -import java.lang.reflect.Member; -import java.util.Iterator; - -public abstract class VMBridge -{ - - static final VMBridge instance = makeInstance(); - - private static VMBridge makeInstance() - { - String[] classNames = { - "org.mozilla.javascript.VMBridge_custom", - "org.mozilla.javascript.jdk15.VMBridge_jdk15", - "org.mozilla.javascript.jdk13.VMBridge_jdk13", - "org.mozilla.javascript.jdk11.VMBridge_jdk11", - }; - for (int i = 0; i != classNames.length; ++i) { - String className = classNames[i]; - Class cl = Kit.classOrNull(className); - if (cl != null) { - VMBridge bridge = (VMBridge)Kit.newInstanceOrNull(cl); - if (bridge != null) { - return bridge; - } - } - } - throw new IllegalStateException("Failed to create VMBridge instance"); - } - - /** - * Return a helper object to optimize {@link Context} access. - * <p> - * The runtime will pass the resulting helper object to the subsequent - * calls to {@link #getContext(Object contextHelper)} and - * {@link #setContext(Object contextHelper, Context cx)} methods. - * In this way the implementation can use the helper to cache - * information about current thread to make {@link Context} access faster. - */ - protected abstract Object getThreadContextHelper(); - - /** - * Get {@link Context} instance associated with the current thread - * or null if none. - * - * @param contextHelper The result of {@link #getThreadContextHelper()} - * called from the current thread. - */ - protected abstract Context getContext(Object contextHelper); - - /** - * Associate {@link Context} instance with the current thread or remove - * the current association if <tt>cx</tt> is null. - * - * @param contextHelper The result of {@link #getThreadContextHelper()} - * called from the current thread. - */ - protected abstract void setContext(Object contextHelper, Context cx); - - /** - * Return the ClassLoader instance associated with the current thread. - */ - protected abstract ClassLoader getCurrentThreadClassLoader(); - - /** - * In many JVMSs, public methods in private - * classes are not accessible by default (Sun Bug #4071593). - * VMBridge instance should try to workaround that via, for example, - * calling method.setAccessible(true) when it is available. - * The implementation is responsible to catch all possible exceptions - * like SecurityException if the workaround is not available. - * - * @return true if it was possible to make method accessible - * or false otherwise. - */ - protected abstract boolean tryToMakeAccessible(Object accessibleObject); - - /** - * Create helper object to create later proxies implementing the specified - * interfaces later. Under JDK 1.3 the implementation can look like: - * <pre> - * return java.lang.reflect.Proxy.getProxyClass(..., interfaces). - * getConstructor(new Class[] { - * java.lang.reflect.InvocationHandler.class }); - * </pre> - * - * @param interfaces Array with one or more interface class objects. - */ - protected Object getInterfaceProxyHelper(ContextFactory cf, - Class[] interfaces) - { - throw Context.reportRuntimeError( - "VMBridge.getInterfaceProxyHelper is not supported"); - } - - /** - * Create proxy object for {@link InterfaceAdapter}. The proxy should call - * {@link InterfaceAdapter#invoke(ContextFactory cf, - * Object target, - * Scriptable topScope, - * Method method, - * Object[] args)} - * as implementation of interface methods associated with - * <tt>proxyHelper</tt>. - * - * @param proxyHelper The result of the previous call to - * {@link #getInterfaceProxyHelper(ContextFactory, Class[])}. - */ - protected Object newInterfaceProxy(Object proxyHelper, - ContextFactory cf, - InterfaceAdapter adapter, - Object target, - Scriptable topScope) - { - throw Context.reportRuntimeError( - "VMBridge.newInterfaceProxy is not supported"); - } - - /** - * Returns whether or not a given member (method or constructor) - * has variable arguments. - * Variable argument methods have only been supported in Java since - * JDK 1.5. - */ - protected abstract boolean isVarArgs(Member member); - - /** - * If "obj" is a java.util.Iterator or a java.lang.Iterable, return a - * wrapping as a JavaScript Iterator. Otherwise, return null. - * This method is in VMBridge since Iterable is a JDK 1.5 addition. - */ - public Iterator getJavaIterator(Context cx, Scriptable scope, Object obj) { - if (obj instanceof Wrapper) { - Object unwrapped = ((Wrapper) obj).unwrap(); - Iterator iterator = null; - if (unwrapped instanceof Iterator) - iterator = (Iterator) unwrapped; - return iterator; - } - return null; - } -} |