/*

 * 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.generic;

import java.io.DataOutputStream;

import java.io.IOException;

import com.sun.org.apache.bcel.internal.classfile.ConstantUtf8;

import com.sun.org.apache.bcel.internal.classfile.ElementValue;

import com.sun.org.apache.bcel.internal.classfile.EnumElementValue;

/**

 * @since 6.0

 */

public class EnumElementValueGen extends ElementValueGen

{

    // For enum types, these two indices point to the type and value

    private int typeIdx;

    private int valueIdx;

    /**

     * This ctor assumes the constant pool already contains the right type and

     * value - as indicated by typeIdx and valueIdx. This ctor is used for

     * deserialization

     */

    protected EnumElementValueGen(final int typeIdx, final int valueIdx,

            final ConstantPoolGen cpool)

    {

        super(ElementValueGen.ENUM_CONSTANT, cpool);

        if (super.getElementValueType() != ENUM_CONSTANT) {

            throw new IllegalArgumentException(

                    "Only element values of type enum can be built with this ctor - type specified: "

                            + super.getElementValueType());

        }

        this.typeIdx = typeIdx;

        this.valueIdx = valueIdx;

    }

    /**

     * Return immutable variant of this EnumElementValue

     */

    @Override

    public ElementValue getElementValue()

    {

        System.err.println("Duplicating value: " + getEnumTypeString() + ":"

                + getEnumValueString());

        return new EnumElementValue(super.getElementValueType(), typeIdx, valueIdx,

                getConstantPool().getConstantPool());

    }

    public EnumElementValueGen(final ObjectType t, final String value, final ConstantPoolGen cpool)

    {

        super(ElementValueGen.ENUM_CONSTANT, cpool);

        typeIdx = cpool.addUtf8(t.getSignature());// was addClass(t);

        valueIdx = cpool.addUtf8(value);// was addString(value);

    }

    public EnumElementValueGen(final EnumElementValue value, final ConstantPoolGen cpool,

            final boolean copyPoolEntries)

    {

        super(ENUM_CONSTANT, cpool);

        if (copyPoolEntries)

        {

            typeIdx = cpool.addUtf8(value.getEnumTypeString());// was

                                                                // addClass(value.getEnumTypeString());

            valueIdx = cpool.addUtf8(value.getEnumValueString()); // was

                                                                    // addString(value.getEnumValueString());

        }

        else

        {

            typeIdx = value.getTypeIndex();

            valueIdx = value.getValueIndex();

        }

    }

    @Override

    public void dump(final DataOutputStream dos) throws IOException

    {

        dos.writeByte(super.getElementValueType()); // u1 type of value (ENUM_CONSTANT == 'e')

        dos.writeShort(typeIdx); // u2

        dos.writeShort(valueIdx); // u2

    }

    @Override

    public String stringifyValue()

    {

        final ConstantUtf8 cu8 = (ConstantUtf8) getConstantPool().getConstant(valueIdx);

        return cu8.getBytes();

        // ConstantString cu8 =

        // (ConstantString)getConstantPool().getConstant(valueIdx);

        // return

        // ((ConstantUtf8)getConstantPool().getConstant(cu8.getStringIndex())).getBytes();

    }

    // BCELBUG: Should we need to call utility.signatureToString() on the output

    // here?

    public String getEnumTypeString()

    {

        // Constant cc = getConstantPool().getConstant(typeIdx);

        // ConstantClass cu8 =

        // (ConstantClass)getConstantPool().getConstant(typeIdx);

        // return

        // ((ConstantUtf8)getConstantPool().getConstant(cu8.getNameIndex())).getBytes();

        return ((ConstantUtf8) getConstantPool().getConstant(typeIdx))

                .getBytes();

        // return Utility.signatureToString(cu8.getBytes());

    }

    public String getEnumValueString()

    {

        return ((ConstantUtf8) getConstantPool().getConstant(valueIdx)).getBytes();

        // ConstantString cu8 =

        // (ConstantString)getConstantPool().getConstant(valueIdx);

        // return

        // ((ConstantUtf8)getConstantPool().getConstant(cu8.getStringIndex())).getBytes();

    }

    public int getValueIndex()

    {

        return valueIdx;

    }

    public int getTypeIndex()

    {

        return typeIdx;

    }

}