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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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,
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package com.sun.source.tree;

/**
 * A tree node for a 'requires' directive in a module declaration.
 *
 * For example:
 * <pre>
 *    requires <em>module-name</em>;
 *    requires static <em>module-name</em>;
 *    requires transitive <em>module-name</em>;
 * </pre>
 *
 * @since 9
 */
public interface RequiresTree extends DirectiveTree {
    /**
     * Returns true if this is a "requires static" directive.
     * @return true if this is a "requires static" directive
     */
    boolean isStatic();

    /**
     * Returns true if this is a "requires transitive" directive.
     * @return true if this is a "requires transitive" directive
     */
    boolean isTransitive();

    /**
     * Returns the name of the module that is required.
     * @return the name of the module that is required
     */
    ExpressionTree getModuleName();
}