/*

 * Copyright (c) 2018, Google LLC. 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.

 */

package com.sun.tools.javac.comp;

import java.util.function.BiFunction;

import java.util.function.Consumer;

import java.util.function.Function;

import java.util.function.Supplier;

public class Deduplication {

    void group(Object... xs) {}

    void test() {

        group((Function<String, Integer>) x -> x.hashCode());

        group((Function<Object, Integer>) x -> x.hashCode());

        {

            int x = 1;

            group((Supplier<Integer>) () -> x + 1);

        }

        {

            int x = 1;

            group((Supplier<Integer>) () -> x + 1);

        }

        group(

                (BiFunction<Integer, Integer, ?>) (x, y) -> x + ((y)),

                (BiFunction<Integer, Integer, ?>) (x, y) -> x + (y),

                (BiFunction<Integer, Integer, ?>) (x, y) -> x + y,

                (BiFunction<Integer, Integer, ?>) (x, y) -> (x) + ((y)),

                (BiFunction<Integer, Integer, ?>) (x, y) -> (x) + (y),

                (BiFunction<Integer, Integer, ?>) (x, y) -> (x) + y,

                (BiFunction<Integer, Integer, ?>) (x, y) -> ((x)) + ((y)),

                (BiFunction<Integer, Integer, ?>) (x, y) -> ((x)) + (y),

                (BiFunction<Integer, Integer, ?>) (x, y) -> ((x)) + y);

        group(

                (Function<Integer, Integer>) x -> x + (1 + 2 + 3),

                (Function<Integer, Integer>) x -> x + 6);

        group((Function<Integer, Integer>) x -> x + 1, (Function<Integer, Integer>) y -> y + 1);

        group((Consumer<Integer>) x -> this.f(), (Consumer<Integer>) x -> this.f());

        group((Consumer<Integer>) y -> this.g());

        group((Consumer<Integer>) x -> f(), (Consumer<Integer>) x -> f());

        group((Consumer<Integer>) y -> g());

        group((Function<Integer, Integer>) x -> this.i, (Function<Integer, Integer>) x -> this.i);

        group((Function<Integer, Integer>) y -> this.j);

        group((Function<Integer, Integer>) x -> i, (Function<Integer, Integer>) x -> i);

        group((Function<Integer, Integer>) y -> j);

        group(

                (Function<Integer, Integer>)

                        y -> {

                            while (true) {

                                break;

                            }

                            return 42;

                        },

                (Function<Integer, Integer>)

                        y -> {

                            while (true) {

                                break;

                            }

                            return 42;

                        });

        group(

                (Function<Integer, Integer>)

                        x -> {

                            int y = x;

                            return y;

                        },

                (Function<Integer, Integer>)

                        x -> {

                            int y = x;

                            return y;

                        });

        group(

                (Function<Integer, Integer>)

                        x -> {

                            int y = 0, z = x;

                            return y;

                        });

        group(

                (Function<Integer, Integer>)

                        x -> {

                            int y = 0, z = x;

                            return z;

                        });

        class Local {

            int i;

            void f() {}

            {

                group((Function<Integer, Integer>) x -> this.i);

                group((Consumer<Integer>) x -> this.f());

                group((Function<Integer, Integer>) x -> Deduplication.this.i);

                group((Consumer<Integer>) x -> Deduplication.this.f());

            }

        }

    }

    void f() {}

    void g() {}

    int i;

    int j;

}