hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/HotSpotResolvedObjectTypeTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * 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 org.junit.Assert;
import org.junit.Test;

import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;

import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
import jdk.vm.ci.meta.Constant;
import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.MemoryAccessProvider;
import jdk.vm.ci.meta.PrimitiveConstant;

/**
 * Tests {@link HotSpotResolvedJavaMethod} functionality.
 */
public class HotSpotResolvedObjectTypeTest extends HotSpotGraalCompilerTest {

    @Test
    public void testGetSourceFileName() throws Throwable {
        Assert.assertEquals("Object.java", HotSpotResolvedObjectType.fromObjectClass(Object.class).getSourceFileName());
        Assert.assertEquals("HotSpotResolvedObjectTypeTest.java", HotSpotResolvedObjectType.fromObjectClass(this.getClass()).getSourceFileName());
    }

    @Test
    public void testKlassLayoutHelper() {
        Constant klass = HotSpotResolvedObjectType.fromObjectClass(this.getClass()).klass();
        MemoryAccessProvider memoryAccess = getProviders().getConstantReflection().getMemoryAccessProvider();
        GraalHotSpotVMConfig config = runtime().getVMConfig();
        Constant c = StampFactory.forKind(JavaKind.Int).readConstant(memoryAccess, klass, config.klassLayoutHelperOffset);
        assertTrue(c.toString(), c.getClass() == PrimitiveConstant.class);
        PrimitiveConstant pc = (PrimitiveConstant) c;
        assertTrue(pc.toString(), pc.getJavaKind() == JavaKind.Int);
    }
}