/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * 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.

 */

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

import java.io.DataInput;

import java.io.DataOutputStream;

import java.io.IOException;

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

// 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 !

/**

 * @since 6.0

 */

public class LocalVariableTypeTable extends Attribute {

    private LocalVariable[] local_variable_type_table;        // variables

    public LocalVariableTypeTable(final LocalVariableTypeTable c) {

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

    }

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

        this.local_variable_type_table = local_variable_table;

    }

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

        final int local_variable_type_table_length = input.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(input, cpool);

        }

    }

    @Override

    public void accept(final Visitor v) {

        v.visitLocalVariableTypeTable(this);

    }

    @Override

    public final void dump(final DataOutputStream file) throws IOException {

        super.dump(file);

        file.writeShort(local_variable_type_table.length);

        for (final LocalVariable variable : local_variable_type_table) {

            variable.dump(file);

        }

    }

    public final LocalVariable[] getLocalVariableTypeTable() {

        return local_variable_type_table;

    }

    public final LocalVariable getLocalVariable(final int index) {

        for (final LocalVariable variable : local_variable_type_table) {

            if (variable.getIndex() == index) {

                return variable;

            }

        }

        return null;

    }

    public final void setLocalVariableTable(final LocalVariable[] local_variable_table) {

        this.local_variable_type_table = local_variable_table;

    }

    /**

     * @return String representation.

     */

    @Override

    public final String toString() {

        final StringBuilder buf = new StringBuilder();

        for (int i = 0; i < local_variable_type_table.length; i++) {

            buf.append(local_variable_type_table[i].toStringShared(true));

            if (i < local_variable_type_table.length - 1) {

                buf.append('\n');

            }

        }

        return buf.toString();

    }

    /**

     * @return deep copy of this attribute

     */

    @Override

    public Attribute copy(final ConstantPool constant_pool) {

        final 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.setConstantPool(constant_pool);

        return c;

    }

    public final int getTableLength() {

        return local_variable_type_table == null ? 0 : local_variable_type_table.length;

    }

}