/*

 * Copyright (c) 2014 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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

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 */

package com.sun.tools.sjavac.comp;

import com.sun.tools.javac.comp.Attr;

import com.sun.tools.javac.util.Context;

import com.sun.tools.javac.code.Symbol;

/** Subclass to Attr that overrides reportDepedence.

 *

 *  <p><b>This is NOT part of any supported API.

 *  If you write code that depends on this, you do so at your own risk.

 *  This code and its internal interfaces are subject to change or

 *  deletion without notice.</b>

 */

public class AttrWithDeps extends Attr {

    /** The dependency database

     */

    protected Dependencies deps;

    protected AttrWithDeps(Context context) {

        super(context);

        deps = Dependencies.instance(context);

    }

    public static void preRegister(Context context) {

        context.put(attrKey, new Context.Factory<Attr>() {

            public Attr make(Context c) {

                Attr instance = new AttrWithDeps(c);

                c.put(Attr.class, instance);

                return instance;

            }

        });

    }

    /** Collect dependencies in the enclosing class

     * @param from The enclosing class sym

     * @param to   The enclosing classes references this sym.

     * */

    @Override

    public void reportDependence(Symbol from, Symbol to) {

        // Capture dependencies between the packages.

        deps.collect(from.packge().fullname, to.packge().fullname);

    }

}