/*

 * Copyright 2006 Sun Microsystems, Inc.  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.

 *

 * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 * @test

 * @bug     6423972

 * @summary Tests TypeParameter.getBounds.

 * @author  Scott Seligman

 * @build   TypeParamBounds

 * @compile -processor TypeParamBounds -proc:only TypeParamBounds.java

 */

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Set;

import javax.annotation.processing.*;

import javax.lang.model.SourceVersion;

import javax.lang.model.element.*;

import javax.lang.model.type.*;

import javax.lang.model.util.*;

@SupportedAnnotationTypes("*")

public class TypeParamBounds extends AbstractProcessor {

    Elements elements;

    Types types;

    public void init(ProcessingEnvironment penv) {

        super.init(penv);

        elements = penv.getElementUtils();

        types = penv.getTypeUtils();

    }

    public boolean process(Set<? extends TypeElement> annoTypes,

                           RoundEnvironment round) {

        if (!round.processingOver())

            doit(annoTypes, round);

        return true;

    }

    private void doit(Set<? extends TypeElement> annoTypes,

                      RoundEnvironment round) {

        TypeElement gen = elements.getTypeElement("TypeParamBounds.Gen");

        // For each type parameter of Gen, compare its bounds with the

        // bounds that are expected.

        //

        for (TypeParameterElement tparam : gen.getTypeParameters()) {

            System.out.println(tparam);

            List<? extends TypeMirror> bounds = tparam.getBounds();

            String[] expected = Gen.boundNames.get(tparam + "");

            if (bounds.size() != expected.length)

                throw new AssertionError();

            int i = 0;

            for (TypeMirror bound : bounds) {

                Name got = types.asElement(bound).getSimpleName();

                String shoulda = expected[i++];

                System.out.println("  " + got);

                if (!got.contentEquals(shoulda))

                    throw new AssertionError(shoulda);

            }

        }

    }

    // Fodder for the processor

    static class Gen<T, U extends Object, V extends Number, W extends U,

                     X extends Runnable, Y extends CharSequence & Runnable,

                     Z extends Object & Runnable> {

        // The names of the bounds of each type parameter of Gen.

        static Map<String, String[]> boundNames =

                new HashMap<String, String[]>();

        static {

            boundNames.put("T", new String[] {"Object"});

            boundNames.put("U", new String[] {"Object"});

            boundNames.put("V", new String[] {"Number"});

            boundNames.put("W", new String[] {"U"});

            boundNames.put("X", new String[] {"Runnable"});

            boundNames.put("Y", new String[] {"CharSequence", "Runnable"});

            boundNames.put("Z", new String[] {"Object", "Runnable"});

        }

    }

}