/*

 * Copyright (c) 2013, 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.

 *

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

 * questions.

 */

/*

 * @test

 * @bug 8011590

 * @summary Check modeling of default methods

 * @author Joseph D. Darcy

 */

import java.util.Objects;

import java.lang.reflect.*;

import java.lang.annotation.*;

import static java.lang.reflect.Modifier.*;

public class DefaultMethodModeling {

    public static void main(String... args) {

        int failures = 0;

        Class<?>[] classes = {SuperC.class, SuperCchild.class,

                              SuperI.class, SuperIchild.class,

                              SuperIwithDefault.class, SuperIwithDefaultChild.class,

                              Base.class, Combo1.class, Combo2.class,

                              SonSuperIwithDefault.class, DaughterSuperIwithDefault.class, GrandchildSuperIwithDefault.class, D.class,

                              B.class, C.class, B1.class, D1.class

        };

        for(Class<?> clazz : classes) {

            System.err.println(clazz.toString());

            for(Method m : clazz.getMethods()) {

                if (m.getDeclaringClass() != java.lang.Object.class)

                    failures += testMethod(m);

            }

        }

        if (failures > 0)

            throw new RuntimeException();

    }

    private static int testMethod(Method m) {

        ExpectedModel em = Objects.requireNonNull(m.getAnnotation(ExpectedModel.class));

        boolean failed = false;

        if (m.getModifiers() != em.modifiers()) {

            failed = true;

            System.err.printf("Unexpected modifiers %d; expected %d%n", m.getModifiers(), em.modifiers());

        }

        if (m.isDefault() != em.isDefault()) {

            failed = true;

            System.err.printf("Unexpected isDefualt %b; expected b%n", m.isDefault(), em.isDefault());

        }

        if (!m.getDeclaringClass().equals(em.declaringClass())) {

            failed = true;

            System.err.printf("Unexpected isDefualt %s; expected %s%n",

                              m.getDeclaringClass().toString(), em.declaringClass().toString());

        }

        return (!failed) ? 0 :1;

    }

}

@Retention(RetentionPolicy.RUNTIME)

@interface ExpectedModel {

    boolean isDefault() default false;

    int modifiers() default PUBLIC;

    Class<?> declaringClass();

}

abstract class SuperC {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperC.class)

    public abstract void foo();

    @ExpectedModel(declaringClass=SuperC.class)

    public void bar() {

        ;

    }

}

class SuperCchild extends SuperC {

    @ExpectedModel(declaringClass=SuperCchild.class)

    @Override

    public void foo() {;}

}

// -=-=-=-

interface SuperI {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperI.class)

    void foo();

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperI.class)

    void bar();

}

class SuperIchild implements SuperI {

    @ExpectedModel(declaringClass=SuperIchild.class)

    public void foo() {;}

    @ExpectedModel(declaringClass=SuperIchild.class)

    public void bar() {;}

}

// -=-=-=-

interface SuperIwithDefault {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperIwithDefault.class)

    void foo();

    @ExpectedModel(isDefault=true, declaringClass=SuperIwithDefault.class)

    default void bar() {

        ;

    }

}

class SuperIwithDefaultChild implements SuperIwithDefault {

    @ExpectedModel(declaringClass=SuperIwithDefaultChild.class)

    @Override

    public void foo() {;}

}

// -=-=-=-

abstract class Base {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=Base.class)

    @ExpectedModel(declaringClass=Base.class)

    public void quux() {;}

}

abstract class Combo1 extends Base implements SuperI {

    @ExpectedModel(declaringClass=Combo1.class)

    public void wombat() {}

}

abstract class Combo2 extends Base implements SuperIwithDefault {

    @ExpectedModel(declaringClass=Combo2.class)

    public void wombat() {}

}

// -=-=-=-

interface SonSuperIwithDefault extends SuperIwithDefault {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SonSuperIwithDefault.class)

    void baz();

    @ExpectedModel(isDefault=true, declaringClass=SonSuperIwithDefault.class)

    default void bazD() {;}

}

interface DaughterSuperIwithDefault extends SuperIwithDefault {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=DaughterSuperIwithDefault.class)

    void quux();

    @ExpectedModel(isDefault=true, declaringClass=DaughterSuperIwithDefault.class)

    default void quuxD() {;}

}

interface GrandchildSuperIwithDefault extends SonSuperIwithDefault, DaughterSuperIwithDefault {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=GrandchildSuperIwithDefault.class)

    void wombat();

    @ExpectedModel(isDefault=true, declaringClass=GrandchildSuperIwithDefault.class)

    default void wombatD() {;}

}

class D implements GrandchildSuperIwithDefault {

    @ExpectedModel(declaringClass=D.class)

    public void wombat(){}

    @ExpectedModel(declaringClass=D.class)

    public void  baz(){}

    @ExpectedModel(declaringClass=D.class)

    public void foo(){}

    @ExpectedModel(declaringClass=D.class)

    public void quux(){}

}

class D1 implements SonSuperIwithDefault, DaughterSuperIwithDefault {

    @ExpectedModel(declaringClass=D1.class)

    public void foo(){}

    @ExpectedModel(declaringClass=D1.class)

    public void  baz(){}

    @ExpectedModel(declaringClass=D1.class)

    public void quux(){}

}

// -=-=-=-

// What does re-abstraction look like?

class A implements SuperIwithDefault {

    @ExpectedModel(declaringClass=A.class)

    @Override

    public void foo(){;}

}

abstract class B extends A {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=B.class)

    @Override

    public abstract void bar();

}

class C extends B implements SuperIwithDefault {

    @ExpectedModel(declaringClass=C.class)

    public void bar(){}

}

abstract class A1 implements SonSuperIwithDefault {

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=A1.class)

    public abstract void baz();

    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=A1.class)

    public abstract void foo();

}

class B1 extends A1 {

    @ExpectedModel(declaringClass=B1.class)

    @Override

    public void foo(){;}

    @ExpectedModel(declaringClass=B1.class)

    @Override

    public void baz(){}

}