/*

 * Copyright (c) 2017, 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.

 *

 * 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 jdk.vm.ci.hotspot;

import jdk.vm.ci.meta.JavaConstant;

/**

 * Represents a constant that was retrieved from a constant pool. Used to keep track of the constant

 * pool slot for the constant.

 */

public final class HotSpotConstantPoolObject extends HotSpotObjectConstantImpl {

    static JavaConstant forObject(HotSpotResolvedObjectType type, int cpi, Object object) {

        return new HotSpotConstantPoolObject(type, cpi, object);

    }

    public static JavaConstant forObject(HotSpotResolvedObjectType type, int cpi, JavaConstant object) {

        return forObject(type, cpi, ((HotSpotObjectConstantImpl) object).object());

    }

    private final HotSpotResolvedObjectType type;

    private final int cpi;

    public HotSpotResolvedObjectType getCpType() {

        return type;

    }

    public int getCpi() {

        return cpi;

    }

    HotSpotConstantPoolObject(HotSpotResolvedObjectType type, int cpi, Object object) {

        super(object, false);

        this.type = type;

        this.cpi = cpi;

    }

    @Override

    public boolean equals(Object o) {

        if (o instanceof HotSpotConstantPoolObject) {

            if (super.equals(o)) {

                HotSpotConstantPoolObject other = (HotSpotConstantPoolObject) o;

                return type == other.type && cpi == other.cpi;

            }

        }

        return false;

    }

    @Override

    public String toValueString() {

        return getCpType().getName() + getCpi();

    }

    @Override

    public String toString() {

        return super.toString() + "@" + toValueString();

    }

}