src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common.test/src/org/graalvm/compiler/phases/common/test/StampFactoryTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package org.graalvm.compiler.phases.common.test;

import java.lang.reflect.Method;

import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.MetaAccessProvider;

import org.junit.Assert;
import org.junit.Test;

import org.graalvm.compiler.api.test.Graal;
import org.graalvm.compiler.core.common.type.Stamp;
import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.core.common.type.TypeReference;
import org.graalvm.compiler.runtime.RuntimeProvider;

public class StampFactoryTest {

    @SuppressWarnings("unused")
    public void test(int a, Object b, double c) {
    }

    @Test
    public void testParameters() throws NoSuchMethodException, SecurityException {
        Method method = StampFactoryTest.class.getMethod("test", Integer.TYPE, Object.class, Double.TYPE);
        MetaAccessProvider metaAccess = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getProviders().getMetaAccess();
        Stamp[] parameterStamps = StampFactory.createParameterStamps(null, metaAccess.lookupJavaMethod(method));
        Stamp[] expected = {StampFactory.objectNonNull(TypeReference.createWithoutAssumptions(metaAccess.lookupJavaType(StampFactoryTest.class))), StampFactory.forKind(JavaKind.Int),
                        StampFactory.object(TypeReference.createWithoutAssumptions(metaAccess.lookupJavaType(Object.class))), StampFactory.forKind(JavaKind.Double)};
        Assert.assertArrayEquals(expected, parameterStamps);
    }
}