/*

 * Copyright (c) 2016, 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.  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,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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

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 */

/*

 * @test TestStableUByte

 * @summary tests on stable fields and arrays

 * @library /testlibrary /test/lib

 * @build TestStableUByte StableConfiguration sun.hotspot.WhiteBox

 * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main ClassFileInstaller

 *           java/lang/invoke/StableConfiguration

 *           java/lang/invoke/TestStableUByte

 *           java/lang/invoke/TestStableUByte$UByteStable

 *           java/lang/invoke/TestStableUByte$UByteArrayDim1

 *

 * @run main/othervm -Xbootclasspath/a:.

 *                   -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                   -XX:-TieredCompilation

 *                   -XX:+FoldStableValues

 *                   -XX:CompileOnly=::get,::get1

 *                   java.lang.invoke.TestStableUByte

 * @run main/othervm -Xbootclasspath/a:.

 *                   -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                   -XX:-TieredCompilation

 *                   -XX:-FoldStableValues

 *                   -XX:CompileOnly=::get,::get1

 *                   java.lang.invoke.TestStableUByte

 *

 * @run main/othervm -Xbootclasspath/a:.

 *                   -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                   -XX:+TieredCompilation -XX:TieredStopAtLevel=1

 *                   -XX:+FoldStableValues

 *                   -XX:CompileOnly=::get,::get1

 *                   java.lang.invoke.TestStableUByte

 * @run main/othervm -Xbootclasspath/a:.

 *                   -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                   -XX:+TieredCompilation -XX:TieredStopAtLevel=1

 *                   -XX:-FoldStableValues

 *                   -XX:CompileOnly=::get,::get1

 *                   java.lang.invoke.TestStableUByte

 *

 */

package java.lang.invoke;

import jdk.internal.vm.annotation.Stable;

import java.lang.reflect.InvocationTargetException;

public class TestStableUByte {

    static final boolean isStableEnabled = StableConfiguration.isStableEnabled;

    public static void main(String[] args) throws Exception {

        run(UByteStable.class);

        run(UByteArrayDim1.class);

        if (failed) {

            throw new Error("TEST FAILED");

        }

    }

    /* ==================================================== */

    static class UByteStable {

        public @Stable byte v;

        public static final UByteStable c = new UByteStable();

        public static int get() { return c.v & 0xFF; }

        public static void test() throws Exception {

            byte v1 = -1, v2 = 1;

            c.v = v1; int r1 = get();

            c.v = v2; int r2 = get();

            assertEquals(r1, v1 & 0xFF);

            assertEquals(r2, (isStableEnabled ? v1 : v2) & 0xFF);

        }

    }

    /* ==================================================== */

    static class UByteArrayDim1 {

        public @Stable byte[] v;

        public static final UByteArrayDim1 c = new UByteArrayDim1();

        public static byte[] get()  { return c.v; }

        public static int    get1() { return get()[0] & 0xFF; }

        public static void test() throws Exception {

            byte v1 = -1, v2 = 1;

            c.v = new byte[1];

            c.v[0] = v1; int r1 = get1();

            c.v[0] = v2; int r2 = get1();

            assertEquals(r1, v1 & 0xFF);

            assertEquals(r2, (isStableEnabled ? v1 : v2) & 0xFF);

        }

    }

    /* ==================================================== */

    // Auxiliary methods

    static void assertEquals(int i, int j) { if (i != j)  throw new AssertionError(i + " != " + j); }

    static void assertTrue(boolean b) { if (!b)  throw new AssertionError(); }

    static boolean failed = false;

    public static void run(Class<?> test) {

        Throwable ex = null;

        System.out.print(test.getName()+": ");

        try {

            test.getMethod("test").invoke(null);

        } catch (InvocationTargetException e) {

            ex = e.getCause();

        } catch (Throwable e) {

            ex = e;

        } finally {

            if (ex == null) {

                System.out.println("PASSED");

            } else {

                failed = true;

                System.out.println("FAILED");

                ex.printStackTrace(System.out);

            }

        }

    }

}