1 /* 2 * Copyright (c) 2018, 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 com.sun.tools.classfile; 27 28 import com.sun.tools.classfile.ConstantPool.CONSTANT_Class_info; 29 30 import java.io.IOException; 31 import java.util.stream.IntStream; 32 33 /** 34 * <p><b>This is NOT part of any supported API. 35 * If you write code that depends on this, you do so at your own risk. 36 * This code and its internal interfaces are subject to change or 37 * deletion without notice.</b> 38 */ 39 public class NestMembers_attribute extends Attribute { 40 NestMembers_attribute(ClassReader cr, int name_index, int length) throws IOException { 41 super(name_index, length); 42 int len = cr.readUnsignedShort(); 43 members_indexes = new int[len]; 44 for (int i = 0 ; i < len ; i++) { 45 members_indexes[i] = cr.readUnsignedShort(); 46 } 47 } 48 49 public NestMembers_attribute(int name_index, int[] members_indexes) { 50 super(name_index, 2); 51 this.members_indexes = members_indexes; 52 } 53 54 public CONSTANT_Class_info[] getChildren(ConstantPool constant_pool) throws ConstantPoolException { 55 return IntStream.of(members_indexes) 56 .mapToObj(i -> { 57 try { 58 return constant_pool.getClassInfo(i); 59 } catch (ConstantPoolException ex) { 60 throw new AssertionError(ex); 61 } 62 }).toArray(CONSTANT_Class_info[]::new); 63 } 64 65 public <R, D> R accept(Visitor<R, D> visitor, D data) { 66 return visitor.visitNestMembers(this, data); 67 } 68 69 public final int[] members_indexes; 70 }