/*

 * Copyright (c) 2012, 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 8015701

 * @summary Test method parameter attribute generation with captured locals.

 * @compile -parameters CaptureTest.java

 * @run main CaptureTest

 */

import java.lang.Class;

import java.lang.reflect.Constructor;

import java.lang.reflect.Parameter;

import java.lang.reflect.Modifier;

import java.util.List;

import java.util.ArrayList;

public class CaptureTest {

    private static final int SYNTHETIC = 0x1000;

    private static final int MANDATED = 0x8000;

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

        new CaptureTest().run();

    }

    private void run() throws Exception {

        final Encloser pn = new Encloser();

        /* Cases covered here:

         *

         * - Local class

         * - Inner class

         * - Anonymous class

         * - Anonymous class extending a local

         * - Anonymous class extending an inner

         */

        pn.makeLocal("hello").check();

        pn.makeInner("hello").check();

        pn.makeAnon("hello").check();

        pn.makeAnonExtendsLocal("hello").check();

        pn.makeAnonExtendsInner("hello").check();

        if (0 != errors)

            throw new Exception("MethodParameters test failed with " +

                                errors + " errors");

    }

    private void error(final String msg) {

        System.err.println("Error: " + msg);

        errors++;

    }

    int errors;

    abstract class Tester {

        public Tester(final int param) {}

        protected abstract String[] names();

        protected abstract int[] modifiers();

        protected abstract Class[] types();

        public void check() {

            final Class<?> cls = this.getClass();

            final Constructor<?> ctor = cls.getDeclaredConstructors()[0];

            final Parameter[] params = ctor.getParameters();

            final String[] names = names();

            final int[] modifiers = modifiers();

            final Class[] types = types();

            System.err.println("Testing class " + cls);

            if (params.length == names.length) {

                for (int i = 0; i < names.length; i++) {

                    System.err.println("Testing parameter " + params[i].getName());

                    if (!params[i].getName().equals(names[i]))

                        error("Expected parameter name " + names[i] +

                              " got " + params[i].getName());

                    if (params[i].getModifiers() != modifiers[i])

                        error("Expected parameter modifiers " +

                              modifiers[i] + " got " +

                              params[i].getModifiers());

                    if (!params[i].getType().equals(types[i]))

                        error("Expected parameter type " + types[i] +

                              " got " + params[i].getType());

                }

            } else

                error("Expected " + names.length + " parameters");

        }

    }

    class Encloser {

        private class InnerTester extends Tester {

            public InnerTester(final int innerparam) {

                super(innerparam);

            }

            protected String[] names() {

                return new String[] {

                    "this$1",

                    "innerparam"

                };

            }

            protected int[] modifiers() {

                return new int[] {

                    Modifier.FINAL | SYNTHETIC,

                    Modifier.FINAL

                };

            }

            protected Class[] types() {

                return new Class[] {

                    Encloser.class,

                    int.class

                };

            }

        }

        public Tester makeInner(final String message) {

            return new InnerTester(2);

        }

        public Tester makeLocal(final String message) {

            class LocalTester extends Tester {

                public LocalTester(final int localparam) {

                    super(localparam);

                }

                protected String[] names() {

                    return new String[] {

                        "this$1",

                        "localparam",

                        "val$message"

                    };

                }

                protected int[] modifiers() {

                    return new int[] {

                        Modifier.FINAL | MANDATED,

                        Modifier.FINAL,

                        Modifier.FINAL | SYNTHETIC

                    };

                }

                protected Class[] types() {

                    return new Class[] {

                        Encloser.class,

                        int.class,

                        String.class

                    };

                }

                public String message() {

                    return message;

                }

            }

            return new LocalTester(2);

        }

        public Tester makeAnonExtendsLocal(final String message) {

            abstract class LocalTester extends Tester {

                public LocalTester(final int localparam) {

                    super(localparam);

                }

                protected String[] names() {

                    return new String[] {

                        "this$1",

                        "localparam",

                        "val$message"

                    };

                }

                protected int[] modifiers() {

                    return new int[] {

                        Modifier.FINAL | MANDATED,

                        Modifier.FINAL,

                        Modifier.FINAL | SYNTHETIC

                    };

                }

                protected Class[] types() {

                    return new Class[] {

                        Encloser.class,

                        int.class,

                        String.class

                    };

                }

            }

            return new LocalTester(2) {

                public String message() {

                    return message;

                }

            };

        }

        public Tester makeAnonExtendsInner(final String message) {

            return new InnerTester(2) {

                protected String[] names() {

                    return new String[] {

                        "this$1",

                        "innerparam",

                        "val$message"

                    };

                }

                protected int[] modifiers() {

                    return new int[] {

                        Modifier.FINAL | MANDATED,

                        Modifier.FINAL,

                        Modifier.FINAL | SYNTHETIC

                    };

                }

                protected Class[] types() {

                    return new Class[] {

                        Encloser.class,

                        int.class,

                        String.class

                    };

                }

                public String message() {

                    return message;

                }

            };

        }

        public Tester makeAnon(final String message) {

            return new Tester(2) {

                protected String[] names() {

                    return new String[] {

                        "this$1",

                        "param",

                        "val$message"

                    };

                }

                protected int[] modifiers() {

                    return new int[] {

                        Modifier.FINAL | MANDATED,

                        Modifier.FINAL,

                        Modifier.FINAL | SYNTHETIC

                    };

                }

                protected Class[] types() {

                    return new Class[] {

                        Encloser.class,

                        int.class,

                        String.class

                    };

                }

                public String message() {

                    return message;

                }

            };

        }

    }

}