| /* |
| * Copyright (c) 2015, 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. |
| * |
| * 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 compiler.calls.common; |
| |
| import java.lang.invoke.CallSite; |
| import java.lang.invoke.ConstantCallSite; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| |
| /** |
| * A test class checking InvokeDynamic instruction. |
| * This is not quite "ready-to-use" class, since javac can't generate indy |
| * directly(only as part of lambda init) so, this class bytecode should be |
| * patched with method "caller" which uses indy. Other methods can be written in |
| * java for easier support and readability. |
| */ |
| |
| public class InvokeDynamic extends CallsBase { |
| private static final Object LOCK = new Object(); |
| |
| public static void main(String args[]) { |
| new InvokeDynamic().runTest(args); |
| } |
| |
| /** |
| * Caller method to call "callee" method. Must be overwritten with InvokeDynamicPatcher |
| */ |
| @Override |
| public void caller() { |
| } |
| |
| /** |
| * A bootstrap method for invokedynamic |
| * @param lookup a lookup object |
| * @param methodName methodName |
| * @param type method type |
| * @return CallSite for method |
| */ |
| public static CallSite bootstrapMethod(MethodHandles.Lookup lookup, |
| String methodName, MethodType type) throws IllegalAccessException, |
| NoSuchMethodException { |
| MethodType mtype = MethodType.methodType(boolean.class, |
| new Class<?>[]{int.class, long.class, float.class, |
| double.class, String.class}); |
| return new ConstantCallSite(lookup.findVirtual(lookup.lookupClass(), |
| methodName, mtype)); |
| } |
| |
| /** |
| * A callee method, assumed to be called by "caller" |
| */ |
| public boolean callee(int param1, long param2, float param3, double param4, |
| String param5) { |
| calleeVisited = true; |
| CallsBase.checkValues(param1, param2, param3, param4, param5); |
| return true; |
| } |
| |
| /** |
| * A native callee method, assumed to be called by "caller" |
| */ |
| public native boolean calleeNative(int param1, long param2, float param3, |
| double param4, String param5); |
| |
| /** |
| * Returns object to lock execution on |
| * @return lock object |
| */ |
| @Override |
| protected Object getLockObject() { |
| return LOCK; |
| } |
| |
| @Override |
| protected void callerNative() { |
| throw new Error("No native call for invokedynamic"); |
| } |
| } |