test/hotspot/jtreg/vmTestbase/vm/mlvm/meth/share/RandomMTGen.java

/*
 * Copyright (c) 2011, 2018, 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.
 */

package vm.mlvm.meth.share;

import java.lang.invoke.MethodType;

import vm.mlvm.share.Env;

public class RandomMTGen {

    private static final int MAX_ARGS = 10;

    public static MethodType generateRandomMT() {
        Class<?> rtype = RandomTypeGen.next();
        Class<?>[] ptypes = new Class<?>[Env.getRNG().nextInt(MAX_ARGS)];
        for ( int i = 0; i < ptypes.length; i++ ) {
            ptypes[i] = RandomTypeGen.next();
        }

        return MethodType.methodType(rtype, ptypes);
    }

}