/*

 * Copyright (c) 2013, 2018, 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 vm.runtime.defmeth.shared.data;

import vm.runtime.defmeth.shared.builder.TestBuilder;

/**

 * Wrapper around some ConcreteClass instance. It delegates all calls to

 * underlying instance. Lazy resolution of a target instance by it's name

 * allows to delay resolution till runtime and "tie-the-knot" in recursive

 * hierarchies.

 */

public class ConcreteClassLazyAdapter extends ClazzLazyAdapter implements ConcreteClass {

    private final TestBuilder builder;

    private final String name;

    private ConcreteClass target;

    public ConcreteClassLazyAdapter(TestBuilder builder, String name) {

        super(builder, name);

        this.builder = builder;

        this.name = name;

    }

    private ConcreteClass delegate() {

        if (target == null) {

            target = (ConcreteClass)builder.lookup(name);

        }

        return target;

    }

    @Override

    public ConcreteClass parent() {

        return delegate().parent();

    }

    @Override

    public Interface[] interfaces() {

        return delegate().interfaces();

    }

    @Override

    public void visit(Visitor v) {

        delegate().visit(v);

    }

}