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 * 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.

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package org.graalvm.compiler.hotspot.test;

import java.util.Objects;

import org.junit.Test;

import org.graalvm.compiler.core.common.GraalOptions;

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

import org.graalvm.compiler.nodes.ConstantNode;

import org.graalvm.compiler.nodes.StructuredGraph;

import org.graalvm.compiler.options.OptionValues;

import org.graalvm.compiler.phases.tiers.Suites;

import jdk.vm.ci.meta.JavaKind;

public class LoadJavaMirrorWithKlassTest extends GraalCompilerTest {

    private static class Wrapper {

        private Class<?> clazz;

        @Override

        public boolean equals(Object obj) {

            if (obj instanceof Wrapper) {

                return Objects.equals(this.clazz, ((Wrapper) obj).clazz);

            } else {

                return false;

            }

        }

        @Override

        public int hashCode() {

            return clazz.hashCode();

        }

        @Override

        public String toString() {

            return "Wrapper-" + clazz;

        }

    }

    @Override

    @SuppressWarnings("try")

    protected Suites createSuites(OptionValues options) {

        return super.createSuites(getOptions());

    }

    private static OptionValues getOptions() {

        return new OptionValues(getInitialOptions(), GraalOptions.ImmutableCode, true);

    }

    @Override

    protected void checkLowTierGraph(StructuredGraph graph) {

        for (ConstantNode constantNode : graph.getNodes().filter(ConstantNode.class)) {

            assert constantNode.asJavaConstant() == null || constantNode.asJavaConstant().getJavaKind() != JavaKind.Object ||

                            constantNode.asJavaConstant().isDefaultForKind() : "Found unexpected object constant " +

                                            constantNode + ", this should have been removed by the LoadJavaMirrorWithKlassPhase.";

        }

    }

    public static Class<?> classConstant() {

        return Wrapper.class;

    }

    @Test

    public void testClassConstant() {

        test(getOptions(), "classConstant");

    }

    public static Class<?> primitiveClassConstant() {

        return int.class;

    }

    @Test

    public void testPrimitiveClassConstant() {

        test(getOptions(), "primitiveClassConstant");

    }

    public static Wrapper compressedClassConstant(Wrapper w) {

        w.clazz = Wrapper.class;

        return w;

    }

    @Test

    public void testCompressedClassConstant() {

        ArgSupplier arg = () -> new Wrapper();

        test(getOptions(), "compressedClassConstant", arg);

    }

    public static Wrapper compressedPrimitiveClassConstant(Wrapper w) {

        w.clazz = int.class;

        return w;

    }

    @Test

    public void testCompressedPrimitiveClassConstant() {

        ArgSupplier arg = () -> new Wrapper();

        test(getOptions(), "compressedPrimitiveClassConstant", arg);

    }

}