--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/internal/dynalink/DefaultBootstrapper.java Wed Jul 05 20:54:58 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,141 +0,0 @@
-/*
- * Copyright (c) 2010, 2013, 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.
- */
-
-/*
- * This file is available under and governed by the GNU General Public
- * License version 2 only, as published by the Free Software Foundation.
- * However, the following notice accompanied the original version of this
- * file, and Oracle licenses the original version of this file under the BSD
- * license:
- */
-/*
- Copyright 2009-2013 Attila Szegedi
-
- Licensed under both the Apache License, Version 2.0 (the "Apache License")
- and the BSD License (the "BSD License"), with licensee being free to
- choose either of the two at their discretion.
-
- You may not use this file except in compliance with either the Apache
- License or the BSD License.
-
- If you choose to use this file in compliance with the Apache License, the
- following notice applies to you:
-
- You may obtain a copy of the Apache License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
- implied. See the License for the specific language governing
- permissions and limitations under the License.
-
- If you choose to use this file in compliance with the BSD License, the
- following notice applies to you:
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are
- met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- * Neither the name of the copyright holder nor the names of
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
- BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-package jdk.internal.dynalink;
-
-import java.lang.invoke.CallSite;
-import java.lang.invoke.MethodHandles;
-import java.lang.invoke.MethodType;
-import jdk.internal.dynalink.support.CallSiteDescriptorFactory;
-
-/**
- * A convenience default bootstrapper that exposes static bootstrap methods which language runtimes that need the very
- * default behavior can use with minimal setup. When first referenced, it will create a dynamic linker with default
- * settings for the {@link DynamicLinkerFactory}, and its bootstrap methods will create {@link MonomorphicCallSite} for
- * all call sites. It has two bootstrap methods: one creates call sites that use the
- * {@link MethodHandles#publicLookup()} as the lookup for all call sites and disregard the one passed in as the caller,
- * and one that just uses the passed caller as the lookup scope. Using the public lookup one is advised if your language
- * runtime has no concept of interacting with Java visibility scopes, as it results in a more lightweight runtime
- * information.
- */
-public class DefaultBootstrapper {
- private static final DynamicLinker dynamicLinker = new DynamicLinkerFactory().createLinker();
-
- private DefaultBootstrapper() {
- }
-
- /**
- * Use this method as your bootstrap method (see the documentation of the java.lang.invoke package for how to do
- * this). In case your language runtime doesn't have a concept of interaction with Java access scopes, you might
- * want to consider using
- * {@link #publicBootstrap(java.lang.invoke.MethodHandles.Lookup, String, MethodType)} instead.
- *
- * @param caller the caller's lookup
- * @param name the name of the method at the call site
- * @param type the method signature at the call site
- * @return a new {@link MonomorphicCallSite} linked with the default dynamic linker.
- */
- public static CallSite bootstrap(final MethodHandles.Lookup caller, final String name, final MethodType type) {
- return bootstrapInternal(caller, name, type);
- }
-
- /**
- * Use this method as your bootstrap method (see the documentation of the java.lang.invoke package for how to do
- * this) when your language runtime doesn't have a concept of interaction with Java access scopes. If you need to
- * preserve the different caller Lookup objects in the call sites, use
- * {@link #bootstrap(java.lang.invoke.MethodHandles.Lookup, String, MethodType)} instead
- *
- * @param caller the caller's lookup. It is ignored as the call sites will be created with
- * {@link MethodHandles#publicLookup()} instead.
- * @param name the name of the method at the call site
- * @param type the method signature at the call site
- * @return a new {@link MonomorphicCallSite} linked with the default dynamic linker.
- */
- public static CallSite publicBootstrap(final MethodHandles.Lookup caller, final String name, final MethodType type) {
- return bootstrapInternal(MethodHandles.publicLookup(), name, type);
- }
-
- private static CallSite bootstrapInternal(final MethodHandles.Lookup caller, final String name, final MethodType type) {
- return dynamicLinker.link(new MonomorphicCallSite(CallSiteDescriptorFactory.create(caller, name, type)));
- }
-}