1 /*
   2  * Copyright (c) 2019, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package jdk.internal.foreign.abi.x64.windows;
  26 
  27 import jdk.internal.foreign.abi.CallingSequence;
  28 import jdk.internal.foreign.abi.VarargsInvoker;
  29 
  30 import java.foreign.Library;
  31 import java.foreign.NativeMethodType;
  32 import java.lang.invoke.MethodHandle;
  33 import java.lang.invoke.MethodType;
  34 
  35 class VarargsInvokerImpl extends VarargsInvoker {
  36 
  37     private VarargsInvokerImpl(Library.Symbol symbol, NativeMethodType nativeMethodType) {
  38         super(symbol, nativeMethodType);
  39     }
  40 
  41     public static MethodHandle make(Library.Symbol symbol, NativeMethodType nativeMethodType) {
  42         VarargsInvokerImpl invoker = new VarargsInvokerImpl(symbol, nativeMethodType);
  43         MethodType methodType = nativeMethodType.methodType();
  44         return INVOKE_MH.bindTo(invoker).asCollector(Object[].class, methodType.parameterCount())
  45                 .asType(methodType);
  46     }
  47 
  48     @Override
  49     protected MethodHandle specialize(NativeMethodType newNativeMethodType) {
  50         CallingSequence cs = Windowsx64ABI.arrangeCall(newNativeMethodType, nativeMethodType.parameterCount());
  51         return UniversalNativeInvokerImpl.make(symbol, cs, newNativeMethodType).getBoundMethodHandle();
  52     }
  53 
  54 }
  55