1 /*

     2  * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

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

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

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 package com.sun.tools.sjavac.comp;

    26 

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

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

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

    30 

    31 /** Subclass to Attr that overrides reportDepedence.

    32  *

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

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

    35  * risk.  This code and its internal interfaces are subject to change

    36  * or deletion without notice.</b></p>

    37  */

    38 public class AttrWithDeps extends Attr {

    39 

    40     /** The dependency database

    41      */

    42     protected Dependencies deps;

    43 

    44     protected AttrWithDeps(Context context) {

    45         super(context);

    46         deps = Dependencies.instance(context);

    47     }

    48 

    49     public static void preRegister(Context context) {

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

    51             public Attr make(Context c) {

    52                 Attr instance = new AttrWithDeps(c);

    53                 c.put(Attr.class, instance);

    54                 return instance;

    55             }

    56         });

    57     }

    58 

    59     /** Collect dependencies in the enclosing class

    60      * @param from The enclosing class sym

    61      * @param to   The enclosing classes references this sym.

    62      * */

    63     @Override

    64     public void reportDependence(Symbol from, Symbol to) {

    65         // Capture dependencies between the packages.

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

    67     }

    68 }