/*
Copyright 2009-2013 Attila Szegedi
Licensed under both the Apache License, Version 2.0 (the "Apache License")
and the BSD License (the "BSD License"), with licensee being free to
choose either of the two at their discretion.
You may not use this file except in compliance with either the Apache
License or the BSD License.
If you choose to use this file in compliance with the Apache License, the
following notice applies to you:
You may obtain a copy of the Apache License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
If you choose to use this file in compliance with the BSD License, the
following notice applies to you:
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
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* Neither the name of the copyright holder nor the names of
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
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*/
package org.dynalang.dynalink;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import junit.framework.TestCase;
import org.dynalang.dynalink.linker.GuardedInvocation;
import org.dynalang.dynalink.support.CallSiteDescriptorFactory;
/**
* Tests for the {@link MonomorphicCallSite}.
*
* @author Attila Szegedi
*/
public class TestMonomorphicCallSite extends TestCase {
static {
MethodHandles.lookup();
}
/**
* Tests prohibition of setting null target.
*/
public static void testSetNull() {
try {
createCallSite(MethodType.methodType(Void.TYPE)).relink(null, null);
fail();
} catch(NullPointerException e) {
// This is expected
}
}
/**
* Tests setting a guardless target (it has to be linked directly).
*/
public static void testSetGuardless() {
final MethodHandle mh = MethodHandles.identity(Object.class);
final MonomorphicCallSite mcs = createCallSite(mh.type());
mcs.relink(new GuardedInvocation(mh, null), null);
assertSame(mh, mcs.getTarget());
}
private static MonomorphicCallSite createCallSite(MethodType type) {
return new MonomorphicCallSite(CallSiteDescriptorFactory.create(MethodHandles.publicLookup(), "", type));
}
}