author | rfield |
Sat, 16 Feb 2013 12:36:54 -0800 | |
changeset 16001 | fd4c8d3becf8 |
parent 13423 | 17843fff200d |
child 16030 | 265a0d86c9ff |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2012, 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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package java.lang.invoke; |
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import java.lang.invoke.MethodHandleNatives.Constants; |
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/** |
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* Cracking (reflecting) method handles back into their constituent symbolic parts. |
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* |
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*/ |
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final class MethodHandleInfo { |
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public static final int |
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REF_NONE = Constants.REF_NONE, |
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REF_getField = Constants.REF_getField, |
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REF_getStatic = Constants.REF_getStatic, |
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REF_putField = Constants.REF_putField, |
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REF_putStatic = Constants.REF_putStatic, |
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REF_invokeVirtual = Constants.REF_invokeVirtual, |
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REF_invokeStatic = Constants.REF_invokeStatic, |
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REF_invokeSpecial = Constants.REF_invokeSpecial, |
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REF_newInvokeSpecial = Constants.REF_newInvokeSpecial, |
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REF_invokeInterface = Constants.REF_invokeInterface; |
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private final Class<?> declaringClass; |
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private final String name; |
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private final MethodType methodType; |
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private final int referenceKind; |
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public MethodHandleInfo(MethodHandle mh) throws ReflectiveOperationException { |
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MemberName mn = mh.internalMemberName(); |
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this.declaringClass = mn.getDeclaringClass(); |
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this.name = mn.getName(); |
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this.methodType = mn.getMethodType(); |
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this.referenceKind = mn.getReferenceKind(); |
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} |
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public Class<?> getDeclaringClass() { |
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return declaringClass; |
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} |
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public String getName() { |
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return name; |
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} |
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public MethodType getMethodType() { |
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return methodType; |
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} |
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public int getModifiers() { |
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return -1; //TODO |
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} |
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public int getReferenceKind() { |
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return referenceKind; |
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} |
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static String getReferenceKindString(int referenceKind) { |
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switch (referenceKind) { |
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case REF_NONE: return "REF_NONE"; |
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case REF_getField: return "getfield"; |
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case REF_getStatic: return "getstatic"; |
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case REF_putField: return "putfield"; |
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case REF_putStatic: return "putstatic"; |
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case REF_invokeVirtual: return "invokevirtual"; |
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case REF_invokeStatic: return "invokestatic"; |
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case REF_invokeSpecial: return "invokespecial"; |
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case REF_newInvokeSpecial: return "newinvokespecial"; |
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case REF_invokeInterface: return "invokeinterface"; |
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default: return "UNKNOWN_REFENCE_KIND" + "[" + referenceKind + "]"; |
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} |
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} |
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@Override |
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public String toString() { |
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return String.format("%s %s.%s:%s", getReferenceKindString(referenceKind), |
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declaringClass.getName(), name, methodType); |
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} |
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} |