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/*
* Copyright (c) 2015, 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.
*
* 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.
*/
/*
* @test
* @bug 8136421
* @requires vm.jvmci
* @library / /test/lib/
* @library ../common/patches
* @modules java.base/jdk.internal.misc
* @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot
* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -Djvmci.Compiler=null
* compiler.jvmci.compilerToVM.GetImplementorTest
*/
package compiler.jvmci.compilerToVM;
import compiler.jvmci.common.testcases.AbstractClass;
import compiler.jvmci.common.testcases.AbstractClassExtender;
import compiler.jvmci.common.testcases.DoNotExtendClass;
import compiler.jvmci.common.testcases.DoNotImplementInterface;
import compiler.jvmci.common.testcases.MultipleImplementer1;
import compiler.jvmci.common.testcases.MultipleImplementer2;
import compiler.jvmci.common.testcases.MultipleImplementersInterface;
import compiler.jvmci.common.testcases.SingleImplementer;
import compiler.jvmci.common.testcases.SingleImplementerInterface;
import compiler.jvmci.common.testcases.SingleSubclass;
import compiler.jvmci.common.testcases.SingleSubclassedClass;
import jdk.test.lib.Asserts;
import jdk.test.lib.Utils;
import jdk.vm.ci.hotspot.CompilerToVMHelper;
import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Stream;
public class GetImplementorTest {
public static void main(String args[]) {
GetImplementorTest test = new GetImplementorTest();
for (TestCase tcase : createTestCases()) {
test.runTest(tcase);
}
}
private static Set<TestCase> createTestCases() {
Set<TestCase> result = new HashSet<>();
Stream.of(
SingleSubclass.class,
AbstractClassExtender.class,
MultipleImplementer2.class,
MultipleImplementer1.class,
MultipleImplementersInterface.class,
DoNotImplementInterface.class,
DoNotExtendClass.class,
AbstractClass.class,
SingleSubclassedClass.class)
.forEach(Utils::ensureClassIsLoaded);
// an interface with single class implementing it
result.add(new TestCase(SingleImplementerInterface.class,
SingleImplementer.class));
/* an interface with multiple implementers. According to getImplementor
javadoc, an itself should be returned in case of more than one
implementor
*/
result.add(new TestCase(MultipleImplementersInterface.class,
MultipleImplementersInterface.class));
// an interface with no implementors
result.add(new TestCase(DoNotImplementInterface.class, null));
// an abstract class with extender class
result.add(new TestCase(AbstractClass.class, null));
// a simple class, which is not extended
result.add(new TestCase(DoNotExtendClass.class, null));
// a usual class, which is extended
result.add(new TestCase(SingleSubclassedClass.class, null));
return result;
}
private void runTest(TestCase tcase) {
System.out.println(tcase);
HotSpotResolvedObjectType resolvedIface = CompilerToVMHelper
.lookupTypeHelper(Utils.toJVMTypeSignature(tcase.anInterface),
getClass(), /* resolve = */ true);
if (!resolvedIface.isInterface()) {
try {
CompilerToVMHelper.getImplementor(resolvedIface);
Asserts.fail("Expected " + IllegalArgumentException.class.getName());
} catch (IllegalArgumentException e) {
}
return;
}
HotSpotResolvedObjectType resolvedImplementer = CompilerToVMHelper
.getImplementor(resolvedIface);
HotSpotResolvedObjectType resolvedExpected = null;
if (tcase.expectedImplementer != null) {
resolvedExpected = CompilerToVMHelper.lookupTypeHelper(Utils
.toJVMTypeSignature(tcase.expectedImplementer),
getClass(), /* resolve = */ true);
}
Asserts.assertEQ(resolvedImplementer, resolvedExpected,
"Unexpected implementer for " + tcase.anInterface.getName());
}
private static class TestCase {
public final Class<?> anInterface;
public final Class<?> expectedImplementer;
public TestCase(Class<?> iface, Class<?> expectedImplementer) {
this.anInterface = iface;
this.expectedImplementer = expectedImplementer;
}
@Override
public String toString() {
return String.format("CASE: interface=%s, expected=%s",
anInterface.getName(),
expectedImplementer == null
? null
: expectedImplementer.getName());
}
}
}
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