/* |
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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: |
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* |
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* ASM: a very small and fast Java bytecode manipulation framework |
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* Copyright (c) 2000-2011 INRIA, France Telecom |
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* All rights reserved. |
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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 |
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* are met: |
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* 1. 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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* 2. 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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* 3. Neither the name of the copyright holders nor the names of its |
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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 IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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* 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 BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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* THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package jdk.internal.org.objectweb.asm; |
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/** |
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* An {@link FieldVisitor} that generates Java fields in bytecode form. |
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* |
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* @author Eric Bruneton |
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*/ |
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final class FieldWriter extends FieldVisitor { |
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/** |
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* The class writer to which this field must be added. |
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*/ |
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private final ClassWriter cw; |
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/** |
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* Access flags of this field. |
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*/ |
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private final int access; |
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/** |
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* The index of the constant pool item that contains the name of this |
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* method. |
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*/ |
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private final int name; |
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/** |
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* The index of the constant pool item that contains the descriptor of this |
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* field. |
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*/ |
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private final int desc; |
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/** |
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* The index of the constant pool item that contains the signature of this |
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* field. |
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*/ |
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private int signature; |
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/** |
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* The index of the constant pool item that contains the constant value of |
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* this field. |
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*/ |
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private int value; |
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/** |
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* The runtime visible annotations of this field. May be <tt>null</tt>. |
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*/ |
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private AnnotationWriter anns; |
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/** |
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* The runtime invisible annotations of this field. May be <tt>null</tt>. |
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*/ |
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private AnnotationWriter ianns; |
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/** |
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* The runtime visible type annotations of this field. May be <tt>null</tt>. |
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*/ |
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private AnnotationWriter tanns; |
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/** |
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* The runtime invisible type annotations of this field. May be |
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* <tt>null</tt>. |
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*/ |
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private AnnotationWriter itanns; |
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/** |
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* The non standard attributes of this field. May be <tt>null</tt>. |
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*/ |
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private Attribute attrs; |
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// ------------------------------------------------------------------------ |
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// Constructor |
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// ------------------------------------------------------------------------ |
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/** |
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* Constructs a new {@link FieldWriter}. |
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* |
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* @param cw |
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* the class writer to which this field must be added. |
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* @param access |
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* the field's access flags (see {@link Opcodes}). |
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* @param name |
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* the field's name. |
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* @param desc |
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* the field's descriptor (see {@link Type}). |
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* @param signature |
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* the field's signature. May be <tt>null</tt>. |
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* @param value |
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* the field's constant value. May be <tt>null</tt>. |
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*/ |
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FieldWriter(final ClassWriter cw, final int access, final String name, |
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final String desc, final String signature, final Object value) { |
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super(Opcodes.ASM5); |
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if (cw.firstField == null) { |
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cw.firstField = this; |
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} else { |
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cw.lastField.fv = this; |
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} |
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cw.lastField = this; |
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this.cw = cw; |
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this.access = access; |
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this.name = cw.newUTF8(name); |
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this.desc = cw.newUTF8(desc); |
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if (ClassReader.SIGNATURES && signature != null) { |
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this.signature = cw.newUTF8(signature); |
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} |
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if (value != null) { |
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this.value = cw.newConstItem(value).index; |
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} |
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} |
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// ------------------------------------------------------------------------ |
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// Implementation of the FieldVisitor abstract class |
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// ------------------------------------------------------------------------ |
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@Override |
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public AnnotationVisitor visitAnnotation(final String desc, |
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final boolean visible) { |
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if (!ClassReader.ANNOTATIONS) { |
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return null; |
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} |
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ByteVector bv = new ByteVector(); |
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// write type, and reserve space for values count |
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bv.putShort(cw.newUTF8(desc)).putShort(0); |
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AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, 2); |
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if (visible) { |
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aw.next = anns; |
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anns = aw; |
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} else { |
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aw.next = ianns; |
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ianns = aw; |
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} |
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return aw; |
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} |
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@Override |
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public AnnotationVisitor visitTypeAnnotation(final int typeRef, |
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final TypePath typePath, final String desc, final boolean visible) { |
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if (!ClassReader.ANNOTATIONS) { |
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return null; |
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} |
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ByteVector bv = new ByteVector(); |
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// write target_type and target_info |
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AnnotationWriter.putTarget(typeRef, typePath, bv); |
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// write type, and reserve space for values count |
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bv.putShort(cw.newUTF8(desc)).putShort(0); |
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AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, |
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bv.length - 2); |
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if (visible) { |
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aw.next = tanns; |
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tanns = aw; |
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} else { |
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aw.next = itanns; |
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itanns = aw; |
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} |
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return aw; |
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} |
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@Override |
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public void visitAttribute(final Attribute attr) { |
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attr.next = attrs; |
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attrs = attr; |
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} |
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@Override |
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public void visitEnd() { |
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} |
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// ------------------------------------------------------------------------ |
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// Utility methods |
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// ------------------------------------------------------------------------ |
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/** |
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* Returns the size of this field. |
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* |
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* @return the size of this field. |
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*/ |
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int getSize() { |
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int size = 8; |
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if (value != 0) { |
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cw.newUTF8("ConstantValue"); |
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size += 8; |
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} |
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if ((access & Opcodes.ACC_SYNTHETIC) != 0) { |
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if ((cw.version & 0xFFFF) < Opcodes.V1_5 |
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|| (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0) { |
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cw.newUTF8("Synthetic"); |
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size += 6; |
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} |
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} |
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if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
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cw.newUTF8("Deprecated"); |
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size += 6; |
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} |
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if (ClassReader.SIGNATURES && signature != 0) { |
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cw.newUTF8("Signature"); |
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size += 8; |
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} |
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if (ClassReader.ANNOTATIONS && anns != null) { |
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cw.newUTF8("RuntimeVisibleAnnotations"); |
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size += 8 + anns.getSize(); |
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} |
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if (ClassReader.ANNOTATIONS && ianns != null) { |
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cw.newUTF8("RuntimeInvisibleAnnotations"); |
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size += 8 + ianns.getSize(); |
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} |
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if (ClassReader.ANNOTATIONS && tanns != null) { |
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cw.newUTF8("RuntimeVisibleTypeAnnotations"); |
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size += 8 + tanns.getSize(); |
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} |
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if (ClassReader.ANNOTATIONS && itanns != null) { |
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cw.newUTF8("RuntimeInvisibleTypeAnnotations"); |
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size += 8 + itanns.getSize(); |
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} |
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if (attrs != null) { |
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size += attrs.getSize(cw, null, 0, -1, -1); |
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} |
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return size; |
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} |
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/** |
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* Puts the content of this field into the given byte vector. |
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* |
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* @param out |
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* where the content of this field must be put. |
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*/ |
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void put(final ByteVector out) { |
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final int FACTOR = ClassWriter.TO_ACC_SYNTHETIC; |
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int mask = Opcodes.ACC_DEPRECATED | ClassWriter.ACC_SYNTHETIC_ATTRIBUTE |
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| ((access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) / FACTOR); |
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out.putShort(access & ~mask).putShort(name).putShort(desc); |
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int attributeCount = 0; |
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if (value != 0) { |
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++attributeCount; |
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} |
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if ((access & Opcodes.ACC_SYNTHETIC) != 0) { |
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if ((cw.version & 0xFFFF) < Opcodes.V1_5 |
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|| (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0) { |
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++attributeCount; |
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} |
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} |
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if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
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++attributeCount; |
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} |
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if (ClassReader.SIGNATURES && signature != 0) { |
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++attributeCount; |
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} |
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if (ClassReader.ANNOTATIONS && anns != null) { |
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++attributeCount; |
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} |
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if (ClassReader.ANNOTATIONS && ianns != null) { |
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++attributeCount; |
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} |
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if (ClassReader.ANNOTATIONS && tanns != null) { |
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++attributeCount; |
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} |
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if (ClassReader.ANNOTATIONS && itanns != null) { |
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++attributeCount; |
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} |
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if (attrs != null) { |
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attributeCount += attrs.getCount(); |
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} |
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out.putShort(attributeCount); |
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if (value != 0) { |
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out.putShort(cw.newUTF8("ConstantValue")); |
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out.putInt(2).putShort(value); |
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} |
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if ((access & Opcodes.ACC_SYNTHETIC) != 0) { |
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if ((cw.version & 0xFFFF) < Opcodes.V1_5 |
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|| (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0) { |
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out.putShort(cw.newUTF8("Synthetic")).putInt(0); |
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} |
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} |
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if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
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out.putShort(cw.newUTF8("Deprecated")).putInt(0); |
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} |
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if (ClassReader.SIGNATURES && signature != 0) { |
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out.putShort(cw.newUTF8("Signature")); |
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out.putInt(2).putShort(signature); |
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} |
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if (ClassReader.ANNOTATIONS && anns != null) { |
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out.putShort(cw.newUTF8("RuntimeVisibleAnnotations")); |
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anns.put(out); |
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} |
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if (ClassReader.ANNOTATIONS && ianns != null) { |
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out.putShort(cw.newUTF8("RuntimeInvisibleAnnotations")); |
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ianns.put(out); |
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} |
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if (ClassReader.ANNOTATIONS && tanns != null) { |
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out.putShort(cw.newUTF8("RuntimeVisibleTypeAnnotations")); |
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tanns.put(out); |
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} |
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if (ClassReader.ANNOTATIONS && itanns != null) { |
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out.putShort(cw.newUTF8("RuntimeInvisibleTypeAnnotations")); |
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itanns.put(out); |
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} |
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if (attrs != null) { |
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attrs.put(cw, null, 0, -1, -1, out); |
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} |
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} |
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} |