1 /* 2 * Copyright (c) 2015, 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 jdk.internal.misc; 27 28 import java.lang.invoke.MethodType; 29 import java.util.Map; 30 31 public interface JavaLangInvokeAccess { 32 /** 33 * Create a new MemberName instance. Used by {@see StackFrameInfo}. 34 */ 35 Object newMemberName(); 36 37 /** 38 * Returns the name for the given MemberName. Used by {@see StackFrameInfo}. 39 */ 40 String getName(Object mname); 41 42 /** 43 * Returns {@code true} if the given MemberName is a native method. Used by 44 * {@see StackFrameInfo}. 45 */ 46 boolean isNative(Object mname); 47 48 /** 49 * Returns a {@code byte[]} containing the bytecode for a class implementing 50 * DirectMethodHandle of each pairwise combination of {@code MethodType} and 51 * an {@code int} representing method type. Used by 52 * GenerateJLIClassesPlugin to generate such a class during the jlink phase. 53 */ 54 byte[] generateDirectMethodHandleHolderClassBytes(String className, 55 MethodType[] methodTypes, int[] types); 56 57 /** 58 * Returns a {@code byte[]} containing the bytecode for a class implementing 59 * DelegatingMethodHandles of each {@code MethodType} kind in the 60 * {@code methodTypes} argument. Used by GenerateJLIClassesPlugin to 61 * generate such a class during the jlink phase. 62 */ 63 byte[] generateDelegatingMethodHandleHolderClassBytes(String className, 64 MethodType[] methodTypes); 65 66 /** 67 * Returns a {@code byte[]} containing the bytecode for a BoundMethodHandle 68 * species class implementing the signature defined by {@code types}. Used 69 * by GenerateBMHClassesPlugin to enable generation of such classes during 70 * the jlink phase. Should do some added validation since this string may be 71 * user provided. 72 */ 73 Map.Entry<String, byte[]> generateConcreteBMHClassBytes( 74 final String types); 75 }