Sat, 07 Nov 2020 10:30:02 +0800
Added tag mips-jdk8u275-b01 for changeset 7c756d901f9a
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | /* |
aoqi@0 | 27 | * This file is available under and governed by the GNU General Public |
aoqi@0 | 28 | * License version 2 only, as published by the Free Software Foundation. |
aoqi@0 | 29 | * However, the following notice accompanied the original version of this |
aoqi@0 | 30 | * file, and Oracle licenses the original version of this file under the BSD |
aoqi@0 | 31 | * license: |
aoqi@0 | 32 | */ |
aoqi@0 | 33 | /* |
aoqi@0 | 34 | Copyright 2009-2013 Attila Szegedi |
aoqi@0 | 35 | |
aoqi@0 | 36 | Licensed under both the Apache License, Version 2.0 (the "Apache License") |
aoqi@0 | 37 | and the BSD License (the "BSD License"), with licensee being free to |
aoqi@0 | 38 | choose either of the two at their discretion. |
aoqi@0 | 39 | |
aoqi@0 | 40 | You may not use this file except in compliance with either the Apache |
aoqi@0 | 41 | License or the BSD License. |
aoqi@0 | 42 | |
aoqi@0 | 43 | If you choose to use this file in compliance with the Apache License, the |
aoqi@0 | 44 | following notice applies to you: |
aoqi@0 | 45 | |
aoqi@0 | 46 | You may obtain a copy of the Apache License at |
aoqi@0 | 47 | |
aoqi@0 | 48 | http://www.apache.org/licenses/LICENSE-2.0 |
aoqi@0 | 49 | |
aoqi@0 | 50 | Unless required by applicable law or agreed to in writing, software |
aoqi@0 | 51 | distributed under the License is distributed on an "AS IS" BASIS, |
aoqi@0 | 52 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
aoqi@0 | 53 | implied. See the License for the specific language governing |
aoqi@0 | 54 | permissions and limitations under the License. |
aoqi@0 | 55 | |
aoqi@0 | 56 | If you choose to use this file in compliance with the BSD License, the |
aoqi@0 | 57 | following notice applies to you: |
aoqi@0 | 58 | |
aoqi@0 | 59 | Redistribution and use in source and binary forms, with or without |
aoqi@0 | 60 | modification, are permitted provided that the following conditions are |
aoqi@0 | 61 | met: |
aoqi@0 | 62 | * Redistributions of source code must retain the above copyright |
aoqi@0 | 63 | notice, this list of conditions and the following disclaimer. |
aoqi@0 | 64 | * Redistributions in binary form must reproduce the above copyright |
aoqi@0 | 65 | notice, this list of conditions and the following disclaimer in the |
aoqi@0 | 66 | documentation and/or other materials provided with the distribution. |
aoqi@0 | 67 | * Neither the name of the copyright holder nor the names of |
aoqi@0 | 68 | contributors may be used to endorse or promote products derived from |
aoqi@0 | 69 | this software without specific prior written permission. |
aoqi@0 | 70 | |
aoqi@0 | 71 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
aoqi@0 | 72 | IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
aoqi@0 | 73 | TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
aoqi@0 | 74 | PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER |
aoqi@0 | 75 | BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
aoqi@0 | 76 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
aoqi@0 | 77 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
aoqi@0 | 78 | BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
aoqi@0 | 79 | WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
aoqi@0 | 80 | OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
aoqi@0 | 81 | ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
aoqi@0 | 82 | */ |
aoqi@0 | 83 | |
aoqi@0 | 84 | package jdk.internal.dynalink.beans; |
aoqi@0 | 85 | |
aoqi@0 | 86 | import java.lang.invoke.MethodHandle; |
aoqi@0 | 87 | import java.lang.invoke.MethodHandles; |
aoqi@0 | 88 | import java.lang.invoke.MethodType; |
aoqi@0 | 89 | import java.lang.reflect.Array; |
aoqi@0 | 90 | import java.util.Arrays; |
aoqi@0 | 91 | import java.util.Collection; |
aoqi@0 | 92 | import jdk.internal.dynalink.CallSiteDescriptor; |
aoqi@0 | 93 | import jdk.internal.dynalink.beans.GuardedInvocationComponent.ValidationType; |
aoqi@0 | 94 | import jdk.internal.dynalink.linker.GuardedInvocation; |
aoqi@0 | 95 | import jdk.internal.dynalink.linker.LinkRequest; |
aoqi@0 | 96 | import jdk.internal.dynalink.linker.LinkerServices; |
aoqi@0 | 97 | import jdk.internal.dynalink.linker.TypeBasedGuardingDynamicLinker; |
aoqi@0 | 98 | import jdk.internal.dynalink.support.Lookup; |
aoqi@0 | 99 | |
aoqi@0 | 100 | /** |
aoqi@0 | 101 | * Provides a linker for the {@link StaticClass} objects. |
aoqi@0 | 102 | * @author Attila Szegedi |
aoqi@0 | 103 | */ |
aoqi@0 | 104 | class StaticClassLinker implements TypeBasedGuardingDynamicLinker { |
aoqi@0 | 105 | private static final ClassValue<SingleClassStaticsLinker> linkers = new ClassValue<SingleClassStaticsLinker>() { |
aoqi@0 | 106 | @Override |
attila@962 | 107 | protected SingleClassStaticsLinker computeValue(final Class<?> clazz) { |
aoqi@0 | 108 | return new SingleClassStaticsLinker(clazz); |
aoqi@0 | 109 | } |
aoqi@0 | 110 | }; |
aoqi@0 | 111 | |
aoqi@0 | 112 | private static class SingleClassStaticsLinker extends AbstractJavaLinker { |
aoqi@0 | 113 | private final DynamicMethod constructor; |
aoqi@0 | 114 | |
attila@962 | 115 | SingleClassStaticsLinker(final Class<?> clazz) { |
aoqi@0 | 116 | super(clazz, IS_CLASS.bindTo(clazz)); |
aoqi@0 | 117 | // Map "staticClassObject.class" to StaticClass.getRepresentedClass(). Some adventurous soul could subclass |
aoqi@0 | 118 | // StaticClass, so we use INSTANCE_OF validation instead of EXACT_CLASS. |
aoqi@0 | 119 | setPropertyGetter("class", GET_CLASS, ValidationType.INSTANCE_OF); |
aoqi@0 | 120 | constructor = createConstructorMethod(clazz); |
aoqi@0 | 121 | } |
aoqi@0 | 122 | |
aoqi@0 | 123 | /** |
aoqi@0 | 124 | * Creates a dynamic method containing all overloads of a class' public constructor |
aoqi@0 | 125 | * @param clazz the target class |
aoqi@0 | 126 | * @return a dynamic method containing all overloads of a class' public constructor. If the class has no public |
aoqi@0 | 127 | * constructors, returns null. |
aoqi@0 | 128 | */ |
attila@962 | 129 | private static DynamicMethod createConstructorMethod(final Class<?> clazz) { |
aoqi@0 | 130 | if(clazz.isArray()) { |
aoqi@0 | 131 | final MethodHandle boundArrayCtor = ARRAY_CTOR.bindTo(clazz.getComponentType()); |
aoqi@0 | 132 | return new SimpleDynamicMethod(StaticClassIntrospector.editConstructorMethodHandle( |
aoqi@0 | 133 | boundArrayCtor.asType(boundArrayCtor.type().changeReturnType(clazz))), clazz, "<init>"); |
aoqi@0 | 134 | } |
aoqi@0 | 135 | if(CheckRestrictedPackage.isRestrictedClass(clazz)) { |
aoqi@0 | 136 | return null; |
aoqi@0 | 137 | } |
aoqi@0 | 138 | return createDynamicMethod(Arrays.asList(clazz.getConstructors()), clazz, "<init>"); |
aoqi@0 | 139 | } |
aoqi@0 | 140 | |
aoqi@0 | 141 | @Override |
aoqi@0 | 142 | FacetIntrospector createFacetIntrospector() { |
aoqi@0 | 143 | return new StaticClassIntrospector(clazz); |
aoqi@0 | 144 | } |
aoqi@0 | 145 | |
aoqi@0 | 146 | @Override |
attila@962 | 147 | public GuardedInvocation getGuardedInvocation(final LinkRequest request, final LinkerServices linkerServices) |
aoqi@0 | 148 | throws Exception { |
aoqi@0 | 149 | final GuardedInvocation gi = super.getGuardedInvocation(request, linkerServices); |
aoqi@0 | 150 | if(gi != null) { |
aoqi@0 | 151 | return gi; |
aoqi@0 | 152 | } |
aoqi@0 | 153 | final CallSiteDescriptor desc = request.getCallSiteDescriptor(); |
aoqi@0 | 154 | final String op = desc.getNameToken(CallSiteDescriptor.OPERATOR); |
aoqi@0 | 155 | if("new" == op && constructor != null) { |
aoqi@0 | 156 | final MethodHandle ctorInvocation = constructor.getInvocation(desc, linkerServices); |
aoqi@0 | 157 | if(ctorInvocation != null) { |
aoqi@0 | 158 | return new GuardedInvocation(ctorInvocation, getClassGuard(desc.getMethodType())); |
aoqi@0 | 159 | } |
aoqi@0 | 160 | } |
aoqi@0 | 161 | return null; |
aoqi@0 | 162 | } |
attila@963 | 163 | |
attila@963 | 164 | @Override |
attila@963 | 165 | SingleDynamicMethod getConstructorMethod(final String signature) { |
attila@963 | 166 | return constructor != null? constructor.getMethodForExactParamTypes(signature) : null; |
attila@963 | 167 | } |
aoqi@0 | 168 | } |
aoqi@0 | 169 | |
attila@963 | 170 | static Object getConstructorMethod(final Class<?> clazz, final String signature) { |
attila@963 | 171 | return linkers.get(clazz).getConstructorMethod(signature); |
attila@488 | 172 | } |
attila@488 | 173 | |
attila@962 | 174 | static Collection<String> getReadableStaticPropertyNames(final Class<?> clazz) { |
aoqi@0 | 175 | return linkers.get(clazz).getReadablePropertyNames(); |
aoqi@0 | 176 | } |
aoqi@0 | 177 | |
attila@962 | 178 | static Collection<String> getWritableStaticPropertyNames(final Class<?> clazz) { |
aoqi@0 | 179 | return linkers.get(clazz).getWritablePropertyNames(); |
aoqi@0 | 180 | } |
aoqi@0 | 181 | |
attila@962 | 182 | static Collection<String> getStaticMethodNames(final Class<?> clazz) { |
aoqi@0 | 183 | return linkers.get(clazz).getMethodNames(); |
aoqi@0 | 184 | } |
aoqi@0 | 185 | |
aoqi@0 | 186 | @Override |
attila@962 | 187 | public GuardedInvocation getGuardedInvocation(final LinkRequest request, final LinkerServices linkerServices) throws Exception { |
aoqi@0 | 188 | final Object receiver = request.getReceiver(); |
aoqi@0 | 189 | if(receiver instanceof StaticClass) { |
aoqi@0 | 190 | return linkers.get(((StaticClass)receiver).getRepresentedClass()).getGuardedInvocation(request, |
aoqi@0 | 191 | linkerServices); |
aoqi@0 | 192 | } |
aoqi@0 | 193 | return null; |
aoqi@0 | 194 | } |
aoqi@0 | 195 | |
aoqi@0 | 196 | @Override |
attila@962 | 197 | public boolean canLinkType(final Class<?> type) { |
aoqi@0 | 198 | return type == StaticClass.class; |
aoqi@0 | 199 | } |
aoqi@0 | 200 | |
aoqi@0 | 201 | /*private*/ static final MethodHandle GET_CLASS; |
aoqi@0 | 202 | /*private*/ static final MethodHandle IS_CLASS; |
aoqi@0 | 203 | /*private*/ static final MethodHandle ARRAY_CTOR = Lookup.PUBLIC.findStatic(Array.class, "newInstance", |
aoqi@0 | 204 | MethodType.methodType(Object.class, Class.class, int.class)); |
aoqi@0 | 205 | |
aoqi@0 | 206 | static { |
aoqi@0 | 207 | final Lookup lookup = new Lookup(MethodHandles.lookup()); |
aoqi@0 | 208 | GET_CLASS = lookup.findVirtual(StaticClass.class, "getRepresentedClass", MethodType.methodType(Class.class)); |
aoqi@0 | 209 | IS_CLASS = lookup.findOwnStatic("isClass", Boolean.TYPE, Class.class, Object.class); |
aoqi@0 | 210 | } |
aoqi@0 | 211 | |
aoqi@0 | 212 | @SuppressWarnings("unused") |
attila@962 | 213 | private static boolean isClass(final Class<?> clazz, final Object obj) { |
aoqi@0 | 214 | return obj instanceof StaticClass && ((StaticClass)obj).getRepresentedClass() == clazz; |
aoqi@0 | 215 | } |
aoqi@0 | 216 | } |