content: /*
   * 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 openjdk.tools.classfile;
  
  import java.io.IOException;
  
  import openjdk.tools.classfile.ConstantPool.CONSTANT_Package_info;
  
  /**
   * 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 ModulePackages_attribute extends Attribute {
      ModulePackages_attribute(ClassReader cr, int name_index, int length)
              throws IOException {
          super(name_index, length);
          packages_count = cr.readUnsignedShort();
          packages_index = new int[packages_count];
          for (int i = 0; i < packages_count; i++)
              packages_index[i] = cr.readUnsignedShort();
      }
  
      public ModulePackages_attribute(ConstantPool constant_pool,
                                int[] packages_index)
              throws ConstantPoolException {
          this(constant_pool.getUTF8Index(Attribute.ModulePackages),
               packages_index);
      }
  
      public ModulePackages_attribute(int name_index,
                                int[] packages_index) {
          super(name_index, 2 + packages_index.length * 2);
          this.packages_count = packages_index.length;
          this.packages_index = packages_index;
      }
  
      public String getPackage(int index, ConstantPool constant_pool) throws ConstantPoolException {
          int package_index = packages_index[index];
          CONSTANT_Package_info info = constant_pool.getPackageInfo(package_index);
          return info.getName();
      }
  
      @Override
      public <R, D> R accept(Visitor<R, D> visitor, D data) {
          return visitor.visitModulePackages(this, data);
      }
  
      public final int packages_count;
      public final int[] packages_index;
  }
  