--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/internal/dynalink/beans/FacetIntrospector.java Wed Jul 05 21:04:26 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,184 +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.beans;
-
-import java.lang.invoke.MethodHandle;
-import java.lang.reflect.Field;
-import java.lang.reflect.Member;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Map;
-import jdk.internal.dynalink.linker.support.Lookup;
-
-/**
- * Base for classes that expose class field and method information to an {@link AbstractJavaLinker}. There are
- * subclasses for instance (bean) and static facet of a class.
- */
-abstract class FacetIntrospector {
- private final Class<?> clazz;
- private final boolean instance;
- private final boolean isRestricted;
-
- protected final AccessibleMembersLookup membersLookup;
-
- FacetIntrospector(final Class<?> clazz, final boolean instance) {
- this.clazz = clazz;
- this.instance = instance;
- isRestricted = CheckRestrictedPackage.isRestrictedClass(clazz);
- membersLookup = new AccessibleMembersLookup(clazz, instance);
- }
-
- /**
- * Returns getters for inner classes.
- * @return getters for inner classes.
- */
- abstract Map<String, MethodHandle> getInnerClassGetters();
-
- /**
- * Returns the fields for the class facet.
- * @return the fields for the class facet.
- */
- Collection<Field> getFields() {
- if(isRestricted) {
- // NOTE: we can't do anything here. Unlike with methods in AccessibleMethodsLookup, we can't just return
- // the fields from a public superclass, because this class might define same-named fields which will shadow
- // the superclass fields, and we have no way to know if they do, since we're denied invocation of
- // getFields(). Therefore, the only correct course of action is to not expose any public fields from a class
- // defined in a restricted package.
- return Collections.emptySet();
- }
-
- final Field[] fields = clazz.getFields();
- final Collection<Field> cfields = new ArrayList<>(fields.length);
- for(final Field field: fields) {
- final boolean isStatic = Modifier.isStatic(field.getModifiers());
- if(isStatic && clazz != field.getDeclaringClass()) {
- // ignore inherited static fields
- continue;
- }
-
- if(instance != isStatic && isAccessible(field)) {
- cfields.add(field);
- }
- }
- return cfields;
- }
-
- boolean isAccessible(final Member m) {
- final Class<?> declaring = m.getDeclaringClass();
- // (declaring == clazz) is just an optimization - we're calling this only from code that operates on a
- // non-restricted class, so if the declaring class is identical to the class being inspected, then forego
- // a potentially expensive restricted-package check.
- return declaring == clazz || !CheckRestrictedPackage.isRestrictedClass(declaring);
- }
-
- /**
- * Returns all the methods in the facet.
- * @return all the methods in the facet.
- */
- Collection<Method> getMethods() {
- return membersLookup.getMethods();
- }
-
-
- MethodHandle unreflectGetter(final Field field) {
- return editMethodHandle(Lookup.PUBLIC.unreflectGetter(field));
- }
-
- MethodHandle unreflectSetter(final Field field) {
- return editMethodHandle(Lookup.PUBLIC.unreflectSetter(field));
- }
-
- /**
- * Returns an edited method handle. A facet might need to edit an unreflected method handle before it is usable with
- * the facet. By default, returns the passed method handle unchanged. The class' static facet will introduce a
- * dropArguments.
- * @param mh the method handle to edit.
- * @return the edited method handle.
- */
- abstract MethodHandle editMethodHandle(MethodHandle mh);
-}