| /* |
| * Copyright (c) 2008, 2011, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 java.lang.invoke; |
| |
| import static java.lang.invoke.LambdaForm.*; |
| import static java.lang.invoke.MethodHandleNatives.Constants.*; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** |
| * A method handle whose behavior is determined only by its LambdaForm. |
| * @author jrose |
| */ |
| final class SimpleMethodHandle extends MethodHandle { |
| private SimpleMethodHandle(MethodType type, LambdaForm form) { |
| super(type, form); |
| } |
| |
| /*non-public*/ static SimpleMethodHandle make(MethodType type, LambdaForm form) { |
| return new SimpleMethodHandle(type, form); |
| } |
| |
| @Override |
| MethodHandle bindArgument(int pos, char basicType, Object value) { |
| MethodType type2 = type().dropParameterTypes(pos, pos+1); |
| LambdaForm form2 = internalForm().bind(1+pos, BoundMethodHandle.SpeciesData.EMPTY); |
| return BoundMethodHandle.bindSingle(type2, form2, basicType, value); |
| } |
| |
| @Override |
| MethodHandle dropArguments(MethodType srcType, int pos, int drops) { |
| LambdaForm newForm = internalForm().addArguments(pos, srcType.parameterList().subList(pos, pos+drops)); |
| return new SimpleMethodHandle(srcType, newForm); |
| } |
| |
| @Override |
| MethodHandle permuteArguments(MethodType newType, int[] reorder) { |
| LambdaForm form2 = internalForm().permuteArguments(1, reorder, basicTypes(newType.parameterList())); |
| return new SimpleMethodHandle(newType, form2); |
| } |
| |
| @Override |
| MethodHandle copyWith(MethodType mt, LambdaForm lf) { |
| return new SimpleMethodHandle(mt, lf); |
| } |
| |
| } |