test/hotspot/jtreg/vmTestbase/vm/mlvm/meth/share/transform/v2/MHVarargsCollectSpreadTF.java

/*
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 * 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.
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package vm.mlvm.meth.share.transform.v2;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodType;

import nsk.share.test.TestUtils;

public class MHVarargsCollectSpreadTF extends MHCollectSpreadBaseTF {

    public MHVarargsCollectSpreadTF(MHCall target) {
        super(target);
    }

    @Override
    protected MethodHandle computeCollectorMH(MethodHandle spreaderMH, MethodType targetType) {
        MethodHandle ret = spreaderMH.asVarargsCollector(Object[].class).asType(targetType);
        // Increase coverage
        TestUtils.assertTrue(ret.isVarargsCollector(), "isVarargsCollection() should return true" );
        return ret;
    }

    @Override
    protected MethodHandle computeSpreaderMH(MethodHandle targetMH) {
        return targetMH.asSpreader(Object[].class, targetMH.type().parameterCount());
    }

    @Override
    protected String getName() {
        return "VarargsCollectSpread";
    }
}