1 /* 2 * Copyright (c) 2015, 2017, 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 {@code StackFrameInfo}. 34 */ newMemberName()35 Object newMemberName(); 36 37 /** 38 * Returns the name for the given MemberName. Used by {@code StackFrameInfo}. 39 */ getName(Object mname)40 String getName(Object mname); 41 42 /** 43 * Returns the {@code MethodType} for the given MemberName. 44 * Used by {@code StackFrameInfo}. 45 */ getMethodType(Object mname)46 MethodType getMethodType(Object mname); 47 48 /** 49 * Returns the descriptor for the given MemberName. 50 * Used by {@code StackFrameInfo}. 51 */ getMethodDescriptor(Object mname)52 String getMethodDescriptor(Object mname); 53 54 /** 55 * Returns {@code true} if the given MemberName is a native method. 56 * Used by {@code StackFrameInfo}. 57 */ isNative(Object mname)58 boolean isNative(Object mname); 59 60 /** 61 * Returns the declaring class for the given MemberName. 62 * Used by {@code StackFrameInfo}. 63 */ getDeclaringClass(Object mname)64 Class<?> getDeclaringClass(Object mname); 65 66 /** 67 * Returns a {@code byte[]} representation of a class implementing 68 * DirectMethodHandle of each pairwise combination of {@code MethodType} and 69 * an {@code int} representing method type. Used by 70 * GenerateJLIClassesPlugin to generate such a class during the jlink phase. 71 */ generateDirectMethodHandleHolderClassBytes(String className, MethodType[] methodTypes, int[] types)72 byte[] generateDirectMethodHandleHolderClassBytes(String className, 73 MethodType[] methodTypes, int[] types); 74 75 /** 76 * Returns a {@code byte[]} representation of a class implementing 77 * DelegatingMethodHandles of each {@code MethodType} kind in the 78 * {@code methodTypes} argument. Used by GenerateJLIClassesPlugin to 79 * generate such a class during the jlink phase. 80 */ generateDelegatingMethodHandleHolderClassBytes(String className, MethodType[] methodTypes)81 byte[] generateDelegatingMethodHandleHolderClassBytes(String className, 82 MethodType[] methodTypes); 83 84 /** 85 * Returns a {@code byte[]} representation of {@code BoundMethodHandle} 86 * species class implementing the signature defined by {@code types}. Used 87 * by GenerateJLIClassesPlugin to enable generation of such classes during 88 * the jlink phase. Should do some added validation since this string may be 89 * user provided. 90 */ generateConcreteBMHClassBytes( final String types)91 Map.Entry<String, byte[]> generateConcreteBMHClassBytes( 92 final String types); 93 94 /** 95 * Returns a {@code byte[]} representation of a class implementing 96 * the zero and identity forms of all {@code LambdaForm.BasicType}s. 97 */ generateBasicFormsClassBytes(final String className)98 byte[] generateBasicFormsClassBytes(final String className); 99 100 /** 101 * Returns a {@code byte[]} representation of a class implementing 102 * the invoker forms for the set of supplied {@code invokerMethodTypes} 103 * and {@code callSiteMethodTypes}. 104 */ generateInvokersHolderClassBytes(String className, MethodType[] invokerMethodTypes, MethodType[] callSiteMethodTypes)105 byte[] generateInvokersHolderClassBytes(String className, 106 MethodType[] invokerMethodTypes, 107 MethodType[] callSiteMethodTypes); 108 109 } 110