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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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 *

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package javax.lang.model.util;

import javax.annotation.processing.SupportedSourceVersion;

import javax.lang.model.SourceVersion;

import javax.lang.model.type.IntersectionType;

import static javax.lang.model.SourceVersion.*;

/**

 * A simple visitor of types with default behavior appropriate for the

 * {@link SourceVersion#RELEASE_8 RELEASE_8} source version.

 *

 * Visit methods corresponding to {@code RELEASE_8} and earlier

 * language constructs call {@link #defaultAction defaultAction},

 * passing their arguments to {@code defaultAction}'s corresponding

 * parameters.

 *

 * <p> Methods in this class may be overridden subject to their

 * general contract.  Note that annotating methods in concrete

 * subclasses with {@link java.lang.Override @Override} will help

 * ensure that methods are overridden as intended.

 *

 * <p> <b>WARNING:</b> The {@code TypeVisitor} interface implemented

 * by this class may have methods added to it in the future to

 * accommodate new, currently unknown, language structures added to

 * future versions of the Java™ programming language.

 * Therefore, methods whose names begin with {@code "visit"} may be

 * added to this class in the future; to avoid incompatibilities,

 * classes which extend this class should not declare any instance

 * methods with names beginning with {@code "visit"}.

 *

 * <p>When such a new visit method is added, the default

 * implementation in this class will be to call the {@link

 * #visitUnknown visitUnknown} method.  A new simple type visitor

 * class will also be introduced to correspond to the new language

 * level; this visitor will have different default behavior for the

 * visit method in question.  When the new visitor is introduced, all

 * or portions of this visitor may be deprecated.

 *

 * @param <R> the return type of this visitor's methods.  Use {@link

 *            Void} for visitors that do not need to return results.

 * @param <P> the type of the additional parameter to this visitor's

 *            methods.  Use {@code Void} for visitors that do not need an

 *            additional parameter.

 *

 * @see SimpleTypeVisitor6

 * @see SimpleTypeVisitor7

 * @see SimpleTypeVisitor9

 * @since 1.8

 */

@SupportedSourceVersion(RELEASE_8)

public class SimpleTypeVisitor8<R, P> extends SimpleTypeVisitor7<R, P> {

    /**

     * Constructor for concrete subclasses; uses {@code null} for the

     * default value.

     */

    protected SimpleTypeVisitor8(){

        super(null);

    }

    /**

     * Constructor for concrete subclasses; uses the argument for the

     * default value.

     *

     * @param defaultValue the value to assign to {@link #DEFAULT_VALUE}

     */

    protected SimpleTypeVisitor8(R defaultValue){

        super(defaultValue);

    }

    /**

     * This implementation visits an {@code IntersectionType} by calling

     * {@code defaultAction}.

     *

     * @param t {@inheritDoc}

     * @param p {@inheritDoc}

     * @return  the result of {@code defaultAction}

     */

    @Override

    public R visitIntersection(IntersectionType t, P p){

        return defaultAction(t, p);

    }

}