author | attila |
Tue, 15 Oct 2013 15:57:14 +0200 | |
changeset 20945 | 11a1b6dc9893 |
parent 16245 | 6a1c6c8bc113 |
child 23770 | cdedd86695a0 |
child 24719 | f726e9d67629 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* This file is available under and governed by the GNU General Public |
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* License version 2 only, as published by the Free Software Foundation. |
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* However, the following notice accompanied the original version of this |
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* file, and Oracle licenses the original version of this file under the BSD |
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* license: |
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*/ |
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/* |
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Copyright 2009-2013 Attila Szegedi |
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|
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Licensed under both the Apache License, Version 2.0 (the "Apache License") |
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and the BSD License (the "BSD License"), with licensee being free to |
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choose either of the two at their discretion. |
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|
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You may not use this file except in compliance with either the Apache |
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License or the BSD License. |
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|
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If you choose to use this file in compliance with the Apache License, the |
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following notice applies to you: |
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|
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You may obtain a copy of the Apache License at |
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|
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http://www.apache.org/licenses/LICENSE-2.0 |
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|
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Unless required by applicable law or agreed to in writing, software |
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distributed under the License is distributed on an "AS IS" BASIS, |
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
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implied. See the License for the specific language governing |
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permissions and limitations under the License. |
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|
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If you choose to use this file in compliance with the BSD License, the |
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following notice applies to you: |
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|
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are |
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met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of the copyright holder nor the names of |
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contributors may be used to endorse or promote products derived from |
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this software without specific prior written permission. |
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|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER |
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package jdk.internal.dynalink.beans; |
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import java.lang.invoke.MethodHandle; |
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import java.lang.invoke.MethodHandles; |
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import java.lang.invoke.MethodType; |
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import java.lang.reflect.Array; |
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import java.util.Collection; |
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import java.util.List; |
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import java.util.Map; |
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import jdk.internal.dynalink.CallSiteDescriptor; |
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import jdk.internal.dynalink.beans.GuardedInvocationComponent.ValidationType; |
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import jdk.internal.dynalink.linker.GuardedInvocation; |
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import jdk.internal.dynalink.linker.LinkerServices; |
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import jdk.internal.dynalink.linker.TypeBasedGuardingDynamicLinker; |
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import jdk.internal.dynalink.support.Guards; |
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import jdk.internal.dynalink.support.Lookup; |
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import jdk.internal.dynalink.support.TypeUtilities; |
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/** |
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* A class that provides linking capabilities for a single POJO class. Normally not used directly, but managed by |
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* {@link BeansLinker}. |
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* |
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* @author Attila Szegedi |
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*/ |
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class BeanLinker extends AbstractJavaLinker implements TypeBasedGuardingDynamicLinker { |
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BeanLinker(Class<?> clazz) { |
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super(clazz, Guards.getClassGuard(clazz), Guards.getInstanceOfGuard(clazz)); |
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if(clazz.isArray()) { |
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// Some languages won't have a notion of manipulating collections. Exposing "length" on arrays as an |
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// explicit property is beneficial for them. |
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// REVISIT: is it maybe a code smell that "dyn:getLength" is not needed? |
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setPropertyGetter("length", GET_ARRAY_LENGTH, ValidationType.IS_ARRAY); |
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} |
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} |
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@Override |
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public boolean canLinkType(Class<?> type) { |
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return type == clazz; |
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} |
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@Override |
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FacetIntrospector createFacetIntrospector() { |
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return new BeanIntrospector(clazz); |
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} |
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|
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@Override |
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protected GuardedInvocationComponent getGuardedInvocationComponent(CallSiteDescriptor callSiteDescriptor, |
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LinkerServices linkerServices, List<String> operations) throws Exception { |
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final GuardedInvocationComponent superGic = super.getGuardedInvocationComponent(callSiteDescriptor, |
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linkerServices, operations); |
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if(superGic != null) { |
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return superGic; |
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} |
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if(operations.isEmpty()) { |
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return null; |
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} |
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final String op = operations.get(0); |
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// dyn:getElem(this, id) |
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// id is typically either an int (for arrays and lists) or an object (for maps). linkerServices can provide |
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// conversion from call site argument type though. |
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if("getElem".equals(op)) { |
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return getElementGetter(callSiteDescriptor, linkerServices, pop(operations)); |
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} |
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if("setElem".equals(op)) { |
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return getElementSetter(callSiteDescriptor, linkerServices, pop(operations)); |
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} |
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// dyn:getLength(this) (works on Java arrays, collections, and maps) |
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if("getLength".equals(op)) { |
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return getLengthGetter(callSiteDescriptor); |
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153 |
} |
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return null; |
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155 |
} |
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156 |
|
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private static MethodHandle GET_LIST_ELEMENT = Lookup.PUBLIC.findVirtual(List.class, "get", |
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MethodType.methodType(Object.class, int.class)); |
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159 |
|
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private static MethodHandle GET_MAP_ELEMENT = Lookup.PUBLIC.findVirtual(Map.class, "get", |
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MethodType.methodType(Object.class, Object.class)); |
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162 |
|
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private static MethodHandle LIST_GUARD = Guards.getInstanceOfGuard(List.class); |
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private static MethodHandle MAP_GUARD = Guards.getInstanceOfGuard(Map.class); |
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165 |
|
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private GuardedInvocationComponent getElementGetter(final CallSiteDescriptor callSiteDescriptor, |
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final LinkerServices linkerServices, List<String> operations) throws Exception { |
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final MethodType callSiteType = callSiteDescriptor.getMethodType(); |
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final Class<?> declaredType = callSiteType.parameterType(0); |
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final GuardedInvocationComponent nextComponent = getGuardedInvocationComponent(callSiteDescriptor, |
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171 |
linkerServices, operations); |
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172 |
|
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// If declared type of receiver at the call site is already an array, a list or map, bind without guard. Thing |
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// is, it'd be quite stupid of a call site creator to go though invokedynamic when it knows in advance they're |
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// dealing with an array, or a list or map, but hey... |
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// Note that for arrays and lists, using LinkerServices.asType() will ensure that any language specific linkers |
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// in use will get a chance to perform any (if there's any) implicit conversion to integer for the indices. |
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final GuardedInvocationComponent gic; |
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final boolean isMap; |
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if(declaredType.isArray()) { |
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gic = new GuardedInvocationComponent(MethodHandles.arrayElementGetter(declaredType)); |
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182 |
isMap = false; |
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183 |
} else if(List.class.isAssignableFrom(declaredType)) { |
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gic = new GuardedInvocationComponent(GET_LIST_ELEMENT); |
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185 |
isMap = false; |
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186 |
} else if(Map.class.isAssignableFrom(declaredType)) { |
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gic = new GuardedInvocationComponent(GET_MAP_ELEMENT); |
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188 |
isMap = true; |
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189 |
} else if(clazz.isArray()) { |
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190 |
gic = getClassGuardedInvocationComponent(MethodHandles.arrayElementGetter(clazz), callSiteType); |
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191 |
isMap = false; |
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192 |
} else if(List.class.isAssignableFrom(clazz)) { |
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gic = new GuardedInvocationComponent(GET_LIST_ELEMENT, Guards.asType(LIST_GUARD, callSiteType), List.class, |
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194 |
ValidationType.INSTANCE_OF); |
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195 |
isMap = false; |
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} else if(Map.class.isAssignableFrom(clazz)) { |
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gic = new GuardedInvocationComponent(GET_MAP_ELEMENT, Guards.asType(MAP_GUARD, callSiteType), Map.class, |
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ValidationType.INSTANCE_OF); |
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199 |
isMap = true; |
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200 |
} else { |
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201 |
// Can't retrieve elements for objects that are neither arrays, nor list, nor maps. |
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202 |
return nextComponent; |
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203 |
} |
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204 |
|
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205 |
// We can have "dyn:getElem:foo", especially in composites, i.e. "dyn:getElem|getProp|getMethod:foo" |
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final String fixedKey = getFixedKey(callSiteDescriptor); |
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207 |
// Convert the key to a number if we're working with a list or array |
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208 |
final Object typedFixedKey; |
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209 |
if(!isMap && fixedKey != null) { |
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210 |
typedFixedKey = convertKeyToInteger(fixedKey, linkerServices); |
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211 |
if(typedFixedKey == null) { |
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212 |
// key is not numeric, it can never succeed |
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213 |
return nextComponent; |
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214 |
} |
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215 |
} else { |
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typedFixedKey = fixedKey; |
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217 |
} |
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218 |
|
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219 |
final GuardedInvocation gi = gic.getGuardedInvocation(); |
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220 |
final Binder binder = new Binder(linkerServices, callSiteType, typedFixedKey); |
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221 |
final MethodHandle invocation = gi.getInvocation(); |
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222 |
|
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223 |
if(nextComponent == null) { |
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224 |
return gic.replaceInvocation(binder.bind(invocation)); |
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225 |
} |
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226 |
|
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227 |
final MethodHandle checkGuard; |
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228 |
if(invocation == GET_LIST_ELEMENT) { |
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229 |
checkGuard = convertArgToInt(RANGE_CHECK_LIST, linkerServices, callSiteDescriptor); |
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230 |
} else if(invocation == GET_MAP_ELEMENT) { |
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231 |
// TODO: A more complex solution could be devised for maps, one where we do a get() first, and fold it |
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232 |
// into a GWT that tests if it returned null, and if it did, do another GWT with containsKey() |
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233 |
// that returns constant null (on true), or falls back to next component (on false) |
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234 |
checkGuard = CONTAINS_MAP; |
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235 |
} else { |
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236 |
checkGuard = convertArgToInt(RANGE_CHECK_ARRAY, linkerServices, callSiteDescriptor); |
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237 |
} |
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238 |
return nextComponent.compose(MethodHandles.guardWithTest(binder.bindTest(checkGuard), |
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239 |
binder.bind(invocation), nextComponent.getGuardedInvocation().getInvocation()), gi.getGuard(), |
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240 |
gic.getValidatorClass(), gic.getValidationType()); |
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241 |
} |
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242 |
|
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243 |
private static String getFixedKey(final CallSiteDescriptor callSiteDescriptor) { |
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return callSiteDescriptor.getNameTokenCount() == 2 ? null : callSiteDescriptor.getNameToken( |
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245 |
CallSiteDescriptor.NAME_OPERAND); |
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246 |
} |
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247 |
|
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248 |
private static Object convertKeyToInteger(String fixedKey, LinkerServices linkerServices) throws Exception { |
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249 |
try { |
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250 |
if(linkerServices.canConvert(String.class, Number.class)) { |
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251 |
try { |
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252 |
final Object val = linkerServices.getTypeConverter(String.class, Number.class).invoke(fixedKey); |
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253 |
if(!(val instanceof Number)) { |
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254 |
return null; // not a number |
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255 |
} |
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256 |
final Number n = (Number)val; |
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257 |
if(n instanceof Integer) { |
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258 |
return n; |
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259 |
} |
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260 |
final int intIndex = n.intValue(); |
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261 |
final double doubleValue = n.doubleValue(); |
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262 |
if(intIndex != doubleValue && !Double.isInfinite(doubleValue)) { // let infinites trigger IOOBE |
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263 |
return null; // not an exact integer |
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264 |
} |
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265 |
return Integer.valueOf(intIndex); |
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266 |
} catch(Exception|Error e) { |
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267 |
throw e; |
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268 |
} catch(Throwable t) { |
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269 |
throw new RuntimeException(t); |
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270 |
} |
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271 |
} |
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272 |
return Integer.valueOf(fixedKey); |
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|
273 |
} catch(NumberFormatException e) { |
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274 |
// key is not a number |
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275 |
return null; |
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276 |
} |
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277 |
} |
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278 |
|
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279 |
private static MethodHandle convertArgToInt(MethodHandle mh, LinkerServices ls, CallSiteDescriptor desc) { |
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280 |
final Class<?> sourceType = desc.getMethodType().parameterType(1); |
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|
281 |
if(TypeUtilities.isMethodInvocationConvertible(sourceType, Number.class)) { |
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282 |
return mh; |
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283 |
} else if(ls.canConvert(sourceType, Number.class)) { |
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284 |
final MethodHandle converter = ls.getTypeConverter(sourceType, Number.class); |
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285 |
return MethodHandles.filterArguments(mh, 1, converter.asType(converter.type().changeReturnType( |
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|
286 |
mh.type().parameterType(1)))); |
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|
287 |
} |
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|
288 |
return mh; |
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|
289 |
} |
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|
290 |
|
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291 |
/** |
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292 |
* Contains methods to adapt an item getter/setter method handle to the requested type, optionally binding it to a |
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293 |
* fixed key first. |
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294 |
* @author Attila Szegedi |
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295 |
* @version $Id: $ |
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|
296 |
*/ |
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|
297 |
private static class Binder { |
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|
298 |
private final LinkerServices linkerServices; |
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|
299 |
private final MethodType methodType; |
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|
300 |
private final Object fixedKey; |
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|
301 |
|
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302 |
Binder(LinkerServices linkerServices, MethodType methodType, Object fixedKey) { |
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303 |
this.linkerServices = linkerServices; |
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|
304 |
this.methodType = fixedKey == null ? methodType : methodType.insertParameterTypes(1, fixedKey.getClass()); |
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305 |
this.fixedKey = fixedKey; |
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|
306 |
} |
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|
307 |
|
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|
308 |
/*private*/ MethodHandle bind(MethodHandle handle) { |
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|
309 |
return bindToFixedKey(linkerServices.asType(handle, methodType)); |
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|
310 |
} |
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|
311 |
|
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|
312 |
/*private*/ MethodHandle bindTest(MethodHandle handle) { |
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|
313 |
return bindToFixedKey(Guards.asType(handle, methodType)); |
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|
314 |
} |
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changeset
|
315 |
|
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|
316 |
private MethodHandle bindToFixedKey(MethodHandle handle) { |
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|
317 |
return fixedKey == null ? handle : MethodHandles.insertArguments(handle, 1, fixedKey); |
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|
318 |
} |
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|
319 |
} |
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|
320 |
|
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|
321 |
private static MethodHandle RANGE_CHECK_ARRAY = findRangeCheck(Object.class); |
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|
322 |
private static MethodHandle RANGE_CHECK_LIST = findRangeCheck(List.class); |
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|
323 |
private static MethodHandle CONTAINS_MAP = Lookup.PUBLIC.findVirtual(Map.class, "containsKey", |
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|
324 |
MethodType.methodType(boolean.class, Object.class)); |
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|
325 |
|
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|
326 |
private static MethodHandle findRangeCheck(Class<?> collectionType) { |
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|
327 |
return Lookup.findOwnStatic(MethodHandles.lookup(), "rangeCheck", boolean.class, collectionType, Object.class); |
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|
328 |
} |
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changeset
|
329 |
|
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|
330 |
@SuppressWarnings("unused") |
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|
331 |
private static final boolean rangeCheck(Object array, Object index) { |
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changeset
|
332 |
if(!(index instanceof Number)) { |
86cb162cec6c
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attila
parents:
diff
changeset
|
333 |
return false; |
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attila
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changeset
|
334 |
} |
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|
335 |
final Number n = (Number)index; |
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|
336 |
final int intIndex = n.intValue(); |
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|
337 |
final double doubleValue = n.doubleValue(); |
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changeset
|
338 |
if(intIndex != doubleValue && !Double.isInfinite(doubleValue)) { // let infinite trigger IOOBE |
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changeset
|
339 |
return false; |
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attila
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changeset
|
340 |
} |
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attila
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changeset
|
341 |
if(0 <= intIndex && intIndex < Array.getLength(array)) { |
86cb162cec6c
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attila
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changeset
|
342 |
return true; |
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attila
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changeset
|
343 |
} |
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attila
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changeset
|
344 |
throw new ArrayIndexOutOfBoundsException("Array index out of range: " + n); |
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attila
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changeset
|
345 |
} |
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attila
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changeset
|
346 |
|
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attila
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changeset
|
347 |
@SuppressWarnings("unused") |
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|
348 |
private static final boolean rangeCheck(List<?> list, Object index) { |
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changeset
|
349 |
if(!(index instanceof Number)) { |
86cb162cec6c
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attila
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changeset
|
350 |
return false; |
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attila
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diff
changeset
|
351 |
} |
86cb162cec6c
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attila
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changeset
|
352 |
final Number n = (Number)index; |
86cb162cec6c
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attila
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changeset
|
353 |
final int intIndex = n.intValue(); |
86cb162cec6c
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attila
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changeset
|
354 |
final double doubleValue = n.doubleValue(); |
86cb162cec6c
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attila
parents:
diff
changeset
|
355 |
if(intIndex != doubleValue && !Double.isInfinite(doubleValue)) { // let infinite trigger IOOBE |
86cb162cec6c
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attila
parents:
diff
changeset
|
356 |
return false; |
86cb162cec6c
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attila
parents:
diff
changeset
|
357 |
} |
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attila
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changeset
|
358 |
if(0 <= intIndex && intIndex < list.size()) { |
86cb162cec6c
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attila
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changeset
|
359 |
return true; |
86cb162cec6c
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attila
parents:
diff
changeset
|
360 |
} |
86cb162cec6c
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attila
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changeset
|
361 |
throw new IndexOutOfBoundsException("Index: " + n + ", Size: " + list.size()); |
86cb162cec6c
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attila
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diff
changeset
|
362 |
} |
86cb162cec6c
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attila
parents:
diff
changeset
|
363 |
|
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changeset
|
364 |
private static MethodHandle SET_LIST_ELEMENT = Lookup.PUBLIC.findVirtual(List.class, "set", |
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attila
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|
365 |
MethodType.methodType(Object.class, int.class, Object.class)); |
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attila
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changeset
|
366 |
|
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|
367 |
private static MethodHandle PUT_MAP_ELEMENT = Lookup.PUBLIC.findVirtual(Map.class, "put", |
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|
368 |
MethodType.methodType(Object.class, Object.class, Object.class)); |
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changeset
|
369 |
|
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|
370 |
private GuardedInvocationComponent getElementSetter(CallSiteDescriptor callSiteDescriptor, |
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|
371 |
LinkerServices linkerServices, List<String> operations) throws Exception { |
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|
372 |
final MethodType callSiteType = callSiteDescriptor.getMethodType(); |
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|
373 |
final Class<?> declaredType = callSiteType.parameterType(0); |
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changeset
|
374 |
|
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attila
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changeset
|
375 |
final GuardedInvocationComponent gic; |
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|
376 |
// If declared type of receiver at the call site is already an array, a list or map, bind without guard. Thing |
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|
377 |
// is, it'd be quite stupid of a call site creator to go though invokedynamic when it knows in advance they're |
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|
378 |
// dealing with an array, or a list or map, but hey... |
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|
379 |
// Note that for arrays and lists, using LinkerServices.asType() will ensure that any language specific linkers |
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|
380 |
// in use will get a chance to perform any (if there's any) implicit conversion to integer for the indices. |
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changeset
|
381 |
final boolean isMap; |
86cb162cec6c
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attila
parents:
diff
changeset
|
382 |
if(declaredType.isArray()) { |
86cb162cec6c
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attila
parents:
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changeset
|
383 |
gic = new GuardedInvocationComponent(MethodHandles.arrayElementSetter(declaredType)); |
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parents:
diff
changeset
|
384 |
isMap = false; |
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attila
parents:
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changeset
|
385 |
} else if(List.class.isAssignableFrom(declaredType)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
386 |
gic = new GuardedInvocationComponent(SET_LIST_ELEMENT); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
387 |
isMap = false; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
388 |
} else if(Map.class.isAssignableFrom(declaredType)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
389 |
gic = new GuardedInvocationComponent(PUT_MAP_ELEMENT); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
390 |
isMap = true; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
391 |
} else if(clazz.isArray()) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
392 |
gic = getClassGuardedInvocationComponent(MethodHandles.arrayElementSetter(clazz), callSiteType); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
393 |
isMap = false; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
394 |
} else if(List.class.isAssignableFrom(clazz)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
395 |
gic = new GuardedInvocationComponent(SET_LIST_ELEMENT, Guards.asType(LIST_GUARD, callSiteType), List.class, |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
396 |
ValidationType.INSTANCE_OF); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
397 |
isMap = false; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
398 |
} else if(Map.class.isAssignableFrom(clazz)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
399 |
gic = new GuardedInvocationComponent(PUT_MAP_ELEMENT, Guards.asType(MAP_GUARD, callSiteType), Map.class, |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
400 |
ValidationType.INSTANCE_OF); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
401 |
isMap = true; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
402 |
} else { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
403 |
// Can't set elements for objects that are neither arrays, nor list, nor maps. |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
404 |
gic = null; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
405 |
isMap = false; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
406 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
407 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
408 |
// In contrast to, say, getElementGetter, we only compute the nextComponent if the target object is not a map, |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
409 |
// as maps will always succeed in setting the element and will never need to fall back to the next component |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
410 |
// operation. |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
411 |
final GuardedInvocationComponent nextComponent = isMap ? null : getGuardedInvocationComponent( |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
412 |
callSiteDescriptor, linkerServices, operations); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
413 |
if(gic == null) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
414 |
return nextComponent; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
415 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
416 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
417 |
// We can have "dyn:setElem:foo", especially in composites, i.e. "dyn:setElem|setProp:foo" |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
418 |
final String fixedKey = getFixedKey(callSiteDescriptor); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
419 |
// Convert the key to a number if we're working with a list or array |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
420 |
final Object typedFixedKey; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
421 |
if(!isMap && fixedKey != null) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
422 |
typedFixedKey = convertKeyToInteger(fixedKey, linkerServices); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
423 |
if(typedFixedKey == null) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
424 |
// key is not numeric, it can never succeed |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
425 |
return nextComponent; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
426 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
427 |
} else { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
428 |
typedFixedKey = fixedKey; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
429 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
430 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
431 |
final GuardedInvocation gi = gic.getGuardedInvocation(); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
432 |
final Binder binder = new Binder(linkerServices, callSiteType, typedFixedKey); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
433 |
final MethodHandle invocation = gi.getInvocation(); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
434 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
435 |
if(nextComponent == null) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
436 |
return gic.replaceInvocation(binder.bind(invocation)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
437 |
} |
16245
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
438 |
|
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
439 |
final MethodHandle checkGuard = convertArgToInt(invocation == SET_LIST_ELEMENT ? RANGE_CHECK_LIST : |
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
440 |
RANGE_CHECK_ARRAY, linkerServices, callSiteDescriptor); |
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
441 |
return nextComponent.compose(MethodHandles.guardWithTest(binder.bindTest(checkGuard), |
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
442 |
binder.bind(invocation), nextComponent.getGuardedInvocation().getInvocation()), gi.getGuard(), |
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
443 |
gic.getValidatorClass(), gic.getValidationType()); |
16234
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
444 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
445 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
446 |
private static MethodHandle GET_ARRAY_LENGTH = Lookup.PUBLIC.findStatic(Array.class, "getLength", |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
447 |
MethodType.methodType(int.class, Object.class)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
448 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
449 |
private static MethodHandle GET_COLLECTION_LENGTH = Lookup.PUBLIC.findVirtual(Collection.class, "size", |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
450 |
MethodType.methodType(int.class)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
451 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
452 |
private static MethodHandle GET_MAP_LENGTH = Lookup.PUBLIC.findVirtual(Map.class, "size", |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
453 |
MethodType.methodType(int.class)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
454 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
455 |
private static MethodHandle COLLECTION_GUARD = Guards.getInstanceOfGuard(Collection.class); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
456 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
457 |
private GuardedInvocationComponent getLengthGetter(CallSiteDescriptor callSiteDescriptor) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
458 |
assertParameterCount(callSiteDescriptor, 1); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
459 |
final MethodType callSiteType = callSiteDescriptor.getMethodType(); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
460 |
final Class<?> declaredType = callSiteType.parameterType(0); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
461 |
// If declared type of receiver at the call site is already an array, collection, or map, bind without guard. |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
462 |
// Thing is, it'd be quite stupid of a call site creator to go though invokedynamic when it knows in advance |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
463 |
// they're dealing with an array, collection, or map, but hey... |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
464 |
if(declaredType.isArray()) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
465 |
return new GuardedInvocationComponent(GET_ARRAY_LENGTH.asType(callSiteType)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
466 |
} else if(Collection.class.isAssignableFrom(declaredType)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
467 |
return new GuardedInvocationComponent(GET_COLLECTION_LENGTH.asType(callSiteType)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
468 |
} else if(Map.class.isAssignableFrom(declaredType)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
469 |
return new GuardedInvocationComponent(GET_MAP_LENGTH.asType(callSiteType)); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
470 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
471 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
472 |
// Otherwise, create a binding based on the actual type of the argument with an appropriate guard. |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
473 |
if(clazz.isArray()) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
474 |
return new GuardedInvocationComponent(GET_ARRAY_LENGTH.asType(callSiteType), Guards.isArray(0, |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
475 |
callSiteType), ValidationType.IS_ARRAY); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
476 |
} if(Collection.class.isAssignableFrom(clazz)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
477 |
return new GuardedInvocationComponent(GET_COLLECTION_LENGTH.asType(callSiteType), Guards.asType( |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
478 |
COLLECTION_GUARD, callSiteType), Collection.class, ValidationType.INSTANCE_OF); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
479 |
} if(Map.class.isAssignableFrom(clazz)) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
480 |
return new GuardedInvocationComponent(GET_MAP_LENGTH.asType(callSiteType), Guards.asType(MAP_GUARD, |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
481 |
callSiteType), Map.class, ValidationType.INSTANCE_OF); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
482 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
483 |
// Can't retrieve length for objects that are neither arrays, nor collections, nor maps. |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
484 |
return null; |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
485 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
486 |
|
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
487 |
private static void assertParameterCount(CallSiteDescriptor descriptor, int paramCount) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
488 |
if(descriptor.getMethodType().parameterCount() != paramCount) { |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
489 |
throw new BootstrapMethodError(descriptor.getName() + " must have exactly " + paramCount + " parameters."); |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
490 |
} |
86cb162cec6c
8008085: Integrate Dynalink source code into Nashorn codebase
attila
parents:
diff
changeset
|
491 |
} |
16245
6a1c6c8bc113
8008371: Fix Dynalink compiler warnings and whitespace
attila
parents:
16234
diff
changeset
|
492 |
} |