From 98e2821b38a775737e42a2479a6bc65107210859 Mon Sep 17 00:00:00 2001 From: Elliot Kroo Date: Thu, 11 Mar 2010 15:21:30 -0800 Subject: reorganizing the first level of folders (trunk/branch folders are not the git way :) --- .../mozilla/javascript/jdk13/VMBridge_jdk13.java | 157 +++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 infrastructure/rhino1_7R1/src/org/mozilla/javascript/jdk13/VMBridge_jdk13.java (limited to 'infrastructure/rhino1_7R1/src/org/mozilla/javascript/jdk13/VMBridge_jdk13.java') diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/jdk13/VMBridge_jdk13.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/jdk13/VMBridge_jdk13.java new file mode 100644 index 0000000..c33e9b4 --- /dev/null +++ b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/jdk13/VMBridge_jdk13.java @@ -0,0 +1,157 @@ +/* -*- 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 ***** */ + +package org.mozilla.javascript.jdk13; + +import java.lang.reflect.AccessibleObject; +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.lang.reflect.Member; +import java.lang.reflect.Proxy; + +import org.mozilla.javascript.*; + +public class VMBridge_jdk13 extends VMBridge +{ + private ThreadLocal contextLocal = new ThreadLocal(); + + protected Object getThreadContextHelper() + { + // To make subsequent batch calls to getContext/setContext faster + // associate permanently one element array with contextLocal + // so getContext/setContext would need just to read/write the first + // array element. + // Note that it is necessary to use Object[], not Context[] to allow + // garbage collection of Rhino classes. For details see comments + // by Attila Szegedi in + // https://bugzilla.mozilla.org/show_bug.cgi?id=281067#c5 + + Object[] storage = (Object[])contextLocal.get(); + if (storage == null) { + storage = new Object[1]; + contextLocal.set(storage); + } + return storage; + } + + protected Context getContext(Object contextHelper) + { + Object[] storage = (Object[])contextHelper; + return (Context)storage[0]; + } + + protected void setContext(Object contextHelper, Context cx) + { + Object[] storage = (Object[])contextHelper; + storage[0] = cx; + } + + protected ClassLoader getCurrentThreadClassLoader() + { + return Thread.currentThread().getContextClassLoader(); + } + + protected boolean tryToMakeAccessible(Object accessibleObject) + { + if (!(accessibleObject instanceof AccessibleObject)) { + return false; + } + AccessibleObject accessible = (AccessibleObject)accessibleObject; + if (accessible.isAccessible()) { + return true; + } + try { + accessible.setAccessible(true); + } catch (Exception ex) { } + + return accessible.isAccessible(); + } + + protected Object getInterfaceProxyHelper(ContextFactory cf, + Class[] interfaces) + { + // XXX: How to handle interfaces array withclasses from different + // class loaders? Using cf.getApplicationClassLoader() ? + ClassLoader loader = interfaces[0].getClassLoader(); + Class cl = Proxy.getProxyClass(loader, interfaces); + Constructor c; + try { + c = cl.getConstructor(new Class[] { InvocationHandler.class }); + } catch (NoSuchMethodException ex) { + // Should not happen + throw Kit.initCause(new IllegalStateException(), ex); + } + return c; + } + + protected Object newInterfaceProxy(Object proxyHelper, + final ContextFactory cf, + final InterfaceAdapter adapter, + final Object target, + final Scriptable topScope) + { + Constructor c = (Constructor)proxyHelper; + + InvocationHandler handler = new InvocationHandler() { + public Object invoke(Object proxy, + Method method, + Object[] args) + { + return adapter.invoke(cf, target, topScope, method, args); + } + }; + Object proxy; + try { + proxy = c.newInstance(new Object[] { handler }); + } catch (InvocationTargetException ex) { + throw Context.throwAsScriptRuntimeEx(ex); + } catch (IllegalAccessException ex) { + // Shouls not happen + throw Kit.initCause(new IllegalStateException(), ex); + } catch (InstantiationException ex) { + // Shouls not happen + throw Kit.initCause(new IllegalStateException(), ex); + } + return proxy; + } + + protected boolean isVarArgs(Member member) { + return false; + } +} -- cgit v1.2.3