/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

package com.sun.org.apache.bcel.internal.classfile;

/**

 *  Licensed to the Apache Software Foundation (ASF) under one or more

 *  contributor license agreements.  See the NOTICE file distributed with

 *  this work for additional information regarding copyright ownership.

 *  The ASF licenses this file to You under the Apache License, Version 2.0

 *  (the "License"); you may not use this file except in compliance with

 *  the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 *  Unless required by applicable law or agreed to in writing, software

 *  distributed under the License is distributed on an "AS IS" BASIS,

 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 *  See the License for the specific language governing permissions and

 *  limitations under the License.

 */

import  com.sun.org.apache.bcel.internal.Constants;

import  java.io.*;

// The new table is used when generic types are about...

//LocalVariableTable_attribute {

//         u2 attribute_name_index;

//         u4 attribute_length;

//         u2 local_variable_table_length;

//         {  u2 start_pc;

//            u2 length;

//            u2 name_index;

//            u2 descriptor_index;

//            u2 index;

//         } local_variable_table[local_variable_table_length];

//       }

//LocalVariableTypeTable_attribute {

//    u2 attribute_name_index;

//    u4 attribute_length;

//    u2 local_variable_type_table_length;

//    {

//      u2 start_pc;

//      u2 length;

//      u2 name_index;

//      u2 signature_index;

//      u2 index;

//    } local_variable_type_table[local_variable_type_table_length];

//  }

// J5TODO: Needs some testing !

public class LocalVariableTypeTable extends Attribute {

  private static final long serialVersionUID = -1082157891095177114L;

private int             local_variable_type_table_length; // Table of local

  private LocalVariable[] local_variable_type_table;        // variables

  public LocalVariableTypeTable(LocalVariableTypeTable c) {

    this(c.getNameIndex(), c.getLength(), c.getLocalVariableTypeTable(),

         c.getConstantPool());

  }

  public LocalVariableTypeTable(int name_index, int length,

                            LocalVariable[] local_variable_table,

                            ConstantPool    constant_pool)

  {

    super(Constants.ATTR_LOCAL_VARIABLE_TYPE_TABLE, name_index, length, constant_pool);

    setLocalVariableTable(local_variable_table);

  }

  LocalVariableTypeTable(int nameIdx, int len, DataInputStream dis,ConstantPool cpool) throws IOException {

    this(nameIdx, len, (LocalVariable[])null, cpool);

    local_variable_type_table_length = (dis.readUnsignedShort());

    local_variable_type_table = new LocalVariable[local_variable_type_table_length];

    for(int i=0; i < local_variable_type_table_length; i++)

      local_variable_type_table[i] = new LocalVariable(dis, cpool);

  }

  @Override

public void accept(Visitor v) {

    v.visitLocalVariableTypeTable(this);

  }

  @Override

public final void dump(DataOutputStream file) throws IOException

  {

    super.dump(file);

    file.writeShort(local_variable_type_table_length);

    for(int i=0; i < local_variable_type_table_length; i++)

      local_variable_type_table[i].dump(file);

  }

  public final LocalVariable[] getLocalVariableTypeTable() {

    return local_variable_type_table;

  }

  public final LocalVariable getLocalVariable(int index) {

    for(int i=0; i < local_variable_type_table_length; i++)

      if(local_variable_type_table[i].getIndex() == index)

        return local_variable_type_table[i];

    return null;

  }

  public final void setLocalVariableTable(LocalVariable[] local_variable_table)

  {

    this.local_variable_type_table = local_variable_table;

    local_variable_type_table_length = (local_variable_table == null)? 0 :

      local_variable_table.length;

  }

  /**

   * @return String representation.

   */

  @Override

public final String toString() {

      StringBuilder buf = new StringBuilder();

    for(int i=0; i < local_variable_type_table_length; i++) {

      buf.append(local_variable_type_table[i].toString());

      if(i < local_variable_type_table_length - 1) buf.append('\n');

    }

    return buf.toString();

  }

  /**

   * @return deep copy of this attribute

   */

  @Override

public Attribute copy(ConstantPool constant_pool) {

    LocalVariableTypeTable c = (LocalVariableTypeTable)clone();

    c.local_variable_type_table = new LocalVariable[local_variable_type_table_length];

    for(int i=0; i < local_variable_type_table_length; i++)

      c.local_variable_type_table[i] = local_variable_type_table[i].copy();

    c.constant_pool = constant_pool;

    return c;

  }

  public final int getTableLength() { return local_variable_type_table_length; }

}