| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 com.sun.tools.classfile; |
| |
| import java.io.IOException; |
| |
| /** |
| * See JVMS, section 4.8.15. |
| * |
| * <p><b>This is NOT part of any supported API. |
| * If you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b> |
| */ |
| public class ModuleHashes_attribute extends Attribute { |
| ModuleHashes_attribute(ClassReader cr, int name_index, int length) throws IOException { |
| super(name_index, length); |
| algorithm_index = cr.readUnsignedShort(); |
| hashes_table_length = cr.readUnsignedShort(); |
| hashes_table = new Entry[hashes_table_length]; |
| for (int i = 0; i < hashes_table_length; i++) |
| hashes_table[i] = new Entry(cr); |
| } |
| |
| public ModuleHashes_attribute(ConstantPool constant_pool, int algorithm_index, Entry[] hashes_table) |
| throws ConstantPoolException { |
| this(constant_pool.getUTF8Index(Attribute.ModuleHashes), algorithm_index, hashes_table); |
| } |
| |
| public ModuleHashes_attribute(int name_index, int algorithm_index, Entry[] hashes_table) { |
| super(name_index, 2 + 2 + length(hashes_table)); |
| this.algorithm_index = algorithm_index; |
| this.hashes_table_length = hashes_table.length; |
| this.hashes_table = hashes_table; |
| } |
| |
| @Override |
| public <R, D> R accept(Visitor<R, D> visitor, D data) { |
| return visitor.visitModuleHashes(this, data); |
| } |
| |
| private static int length(Entry[] hashes_table) { |
| int len = 0; |
| for (Entry e: hashes_table) { |
| len += e.length(); |
| } |
| return len; |
| } |
| |
| public final int algorithm_index; |
| public final int hashes_table_length; |
| public final Entry[] hashes_table; |
| |
| public static class Entry { |
| Entry(ClassReader cr) throws IOException { |
| module_name_index = cr.readUnsignedShort(); |
| int hash_length = cr.readUnsignedShort(); |
| hash = new byte[hash_length]; |
| for (int i=0; i<hash_length; i++) { |
| hash[i] = (byte) cr.readUnsignedByte(); |
| } |
| } |
| |
| public int length() { |
| return 4 + hash.length; |
| } |
| |
| public final int module_name_index; |
| public final byte[] hash; |
| } |
| |
| } |