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ProGuardCORE is a free library to read, analyze, modify, and write Java class files.

There is a newer version: 9.1.6

/*
 * ProGuardCORE -- library to process Java bytecode.
 *
 * Copyright (c) 2002-2020 Guardsquare NV
 *
 * Licensed 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 proguard.classfile.constant;

import proguard.classfile.*;
import proguard.classfile.constant.visitor.ConstantVisitor;

/**
 * This {@link Constant} represents a package constant in the constant pool.
 *
 * @author Joachim Vandersmissen
 */
public class PackageConstant extends Constant
{
    public int u2nameIndex;


    /**
     * Creates an uninitialized PackageConstant.
     */
    public PackageConstant()
    {
    }


    /**
     * Creates a new PackageConstant with the given name index.
     * @param u2nameIndex the index of the name in the constant pool.
     */
    public PackageConstant(int u2nameIndex)
    {
        this.u2nameIndex = u2nameIndex;
    }


    /**
     * Returns the name.
     */
    public String getName(Clazz clazz)
    {
        return clazz.getString(u2nameIndex);
    }


    // Implementations for Constant.

    @Override
    public int getTag()
    {
        return Constant.PACKAGE;
    }

    @Override
    public boolean isCategory2()
    {
        return false;
    }

    @Override
    public void accept(Clazz clazz, ConstantVisitor constantVisitor)
    {
        constantVisitor.visitPackageConstant(clazz, this);
    }


    // Implementations for Object.

    @Override
    public boolean equals(Object object)
    {
        if (object == null || !this.getClass().equals(object.getClass()))
        {
            return false;
        }

        if (this == object)
        {
            return true;
        }

        PackageConstant other = (PackageConstant)object;

        return
            this.u2nameIndex == other.u2nameIndex;
    }

    @Override
    public int hashCode()
    {
        return
            Constant.PACKAGE ^
            (u2nameIndex << 5);
    }

    @Override
    public String toString()
    {
        return "Package(" + u2nameIndex + ")";
    }
}