/*

 * 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 org.graalvm.compiler.core.test.deopt;

import org.graalvm.compiler.api.directives.GraalDirectives;

import org.graalvm.compiler.core.test.GraalCompilerTest;

import org.graalvm.compiler.nodes.FrameState;

import org.junit.Test;

public final class RethrowDeoptMaterializeTest extends GraalCompilerTest {

    private static final Object RETURN_VALUE = "1 2 3";

    private static final RuntimeException DUMMY_EXCEPTION = new RuntimeException();

    static class MyException extends RuntimeException {

        private static final long serialVersionUID = 0L;

        MyException(Throwable cause) {

            super(cause);

        }

        @SuppressWarnings("sync-override")

        @Override

        public final Throwable fillInStackTrace() {

            return this;

        }

    }

    public static Object executeDeoptRethrow(int action) {

        try {

            if (action != 0) {

                throw new MyException(DUMMY_EXCEPTION);

            } else if (action == 1) {

                throw new MyException(null);

            }

        } catch (RuntimeException t) {

            Throwable e = t.getCause();

            GraalDirectives.deoptimize();

            if (e != DUMMY_EXCEPTION) {

                throw t;

            }

        }

        return RETURN_VALUE;

    }

    /**

     * This tests that a state with {@link FrameState#rethrowException()} set to true can properly

     * throw an exception that must be rematerialized.

     */

    @Test

    public void testDeoptRethrow() {

        test("executeDeoptRethrow", 1);

    }

}