/*

 * Copyright (c) 2009, 2016, 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.

 *

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package com.sun.source.tree;

import java.util.List;

/**

 * A tree node for an 'opens' directive in a module declaration.

 *

 * For example:

 * <pre>

 *    opens   <em>package-name</em>;

 *    opens   <em>package-name</em> to <em>module-name</em>;

 * </pre>

 *

 * @since 9

 */

public interface OpensTree extends DirectiveTree {

    /**

     * Returns the name of the package to be opened.

     * @return  the name of the package to be opened

     */

    ExpressionTree getPackageName();

    /**

     * Returns the names of the modules to which the package is opened,

     * or null, if the package is opened to all modules.

     *

     * @return the names of the modules to which the package is opened, or null

     */

    List<? extends ExpressionTree> getModuleNames();

}