InvokeInterface.java

/*
 * Copyright (c) 2015, 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
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 * questions.
 */

package compiler.calls.common;

import jdk.test.lib.Asserts;

/**
 * A test class checking InvokeInterface instruction
 */
public class InvokeInterface extends CallsBase implements CallInterface {
    private static final Object LOCK = new Object();

    public static void main(String args[]) {
        new InvokeInterface().runTest(args);
    }

    /**
     * A caller method, assumed to called "callee"/"calleeNative"
     */
    @Override
    public void caller() {
        // cast to CallInterface to force invokeinterface usage
        if (nativeCallee) {
            Asserts.assertTrue(((CallInterface) this)
                    .calleeNative(1, 2L, 3.0f, 4.0d, "5"), CALL_ERR_MSG);
        } else {
            Asserts.assertTrue(((CallInterface) this)
                    .callee(1, 2L, 3.0f, 4.0d, "5"), CALL_ERR_MSG);
        }
    }

    /**
     * A callee method, assumed to be called by "caller"/"callerNative"
     */
    @Override
    public boolean callee(int param1, long param2, float param3, double param4,
            String param5) {
        calleeVisited = true;
        CallsBase.checkValues(param1, param2, param3, param4, param5);
        return true;
    }

    /**
     * A native callee method, assumed to be called by "caller"/"callerNative"
     */
    @Override
    public native boolean calleeNative(int param1, long param2, float param3,
            double param4, String param5);

    /**
     * Returns object to lock execution on
     * @return lock object
     */
    @Override
    protected Object getLockObject() {
        return LOCK;
    }

    @Override
    protected void callerNative() {
        throw new Error("No native call for invokeinterface");
    }
}