1 /*
   2  * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package vm.mlvm.meth.share.transform.v2;
  25 
  26 import java.lang.invoke.MethodHandle;
  27 import java.lang.invoke.MethodType;
  28 
  29 import nsk.share.test.TestUtils;
  30 
  31 public class MHVarargsCollectSpreadTF extends MHCollectSpreadBaseTF {
  32 
  33     public MHVarargsCollectSpreadTF(MHCall target) {
  34         super(target);
  35     }
  36 
  37     @Override
  38     protected MethodHandle computeCollectorMH(MethodHandle spreaderMH, MethodType targetType) {
  39         MethodHandle ret = spreaderMH.asVarargsCollector(Object[].class).asType(targetType);
  40         // Increase coverage
  41         TestUtils.assertTrue(ret.isVarargsCollector(), "isVarargsCollection() should return true" );
  42         return ret;
  43     }
  44 
  45     @Override
  46     protected MethodHandle computeSpreaderMH(MethodHandle targetMH) {
  47         return targetMH.asSpreader(Object[].class, targetMH.type().parameterCount());
  48     }
  49 
  50     @Override
  51     protected String getName() {
  52         return "VarargsCollectSpread";
  53     }
  54 }