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 java.io.IOException;
  29 import com.sun.tools.classfile.Attribute.Visitor;
  30 
  31 /**
  32  *  <p><b>This is NOT part of any supported API.
  33  *  If you write code that depends on this, you do so at your own risk.
  34  *  This code and its internal interfaces are subject to change or
  35  *  deletion without notice.</b>
  36  */
  37 public class Record_attribute extends Attribute {
  38     Record_attribute(ClassReader cr, int name_index, int length) throws IOException {
  39         super(name_index, length);
  40         num_params = cr.readUnsignedShort();
  41         params = new Param_data[num_params];
  42         for (int i = 0; i < num_params; i++) {
  43             params[i] = new Param_data(cr);
  44         }
  45         attributes = new Attributes(cr);
  46     }
  47 
  48     @Override
  49     public <R, D> R accept(Visitor<R, D> visitor, D data) {
  50         return visitor.visitRecord(this, data);
  51     }
  52 
  53     public final int num_params;
  54     public final Param_data[] params;
  55     public final Attributes attributes;
  56 
  57     public static class Param_data {
  58         Param_data(ClassReader cr) throws IOException {
  59             param_name_index = cr.readUnsignedShort();
  60             param_flags = cr.readUnsignedShort();
  61             param_descriptor = cr.readUnsignedShort();
  62             param_signature = cr.readUnsignedShort();
  63         }
  64 
  65         public String getName(ConstantPool constant_pool) throws ConstantPoolException {
  66             return constant_pool.getUTF8Value(param_name_index);
  67         }
  68 
  69         public final int param_name_index;
  70         public final int param_flags;
  71         public final int param_descriptor;
  72         public final int param_signature;
  73     }
  74 }