/* |
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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.tree; |
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import java.util.List; |
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import jdk.internal.org.objectweb.asm.AnnotationVisitor; |
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import jdk.internal.org.objectweb.asm.Attribute; |
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import jdk.internal.org.objectweb.asm.ClassVisitor; |
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import jdk.internal.org.objectweb.asm.FieldVisitor; |
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import jdk.internal.org.objectweb.asm.Opcodes; |
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import jdk.internal.org.objectweb.asm.TypePath; |
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/** |
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* A node that represents a field. |
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* |
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* @author Eric Bruneton |
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*/ |
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public class FieldNode extends FieldVisitor { |
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/** |
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* The field's access flags (see {@link jdk.internal.org.objectweb.asm.Opcodes}). This field also indicates if |
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* the field is synthetic and/or deprecated. |
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*/ |
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public int access; |
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/** The field's name. */ |
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public String name; |
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/** The field's descriptor (see {@link jdk.internal.org.objectweb.asm.Type}). */ |
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public String desc; |
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/** The field's signature. May be {@literal null}. */ |
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public String signature; |
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/** |
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* The field's initial value. This field, which may be {@literal null} if the field does not have |
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* an initial value, must be an {@link Integer}, a {@link Float}, a {@link Long}, a {@link Double} |
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* or a {@link String}. |
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*/ |
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public Object value; |
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/** The runtime visible annotations of this field. May be {@literal null}. */ |
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public List<AnnotationNode> visibleAnnotations; |
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/** The runtime invisible annotations of this field. May be {@literal null}. */ |
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public List<AnnotationNode> invisibleAnnotations; |
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/** The runtime visible type annotations of this field. May be {@literal null}. */ |
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public List<TypeAnnotationNode> visibleTypeAnnotations; |
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/** The runtime invisible type annotations of this field. May be {@literal null}. */ |
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public List<TypeAnnotationNode> invisibleTypeAnnotations; |
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/** The non standard attributes of this field. * May be {@literal null}. */ |
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public List<Attribute> attrs; |
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/** |
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* Constructs a new {@link FieldNode}. <i>Subclasses must not use this constructor</i>. Instead, |
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* they must use the {@link #FieldNode(int, int, String, String, String, Object)} version. |
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* |
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* @param access the field's access flags (see {@link jdk.internal.org.objectweb.asm.Opcodes}). This parameter |
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* also indicates if the field is synthetic and/or deprecated. |
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* @param name the field's name. |
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* @param descriptor the field's descriptor (see {@link jdk.internal.org.objectweb.asm.Type}). |
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* @param signature the field's signature. |
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* @param value the field's initial value. This parameter, which may be {@literal null} if the |
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* field does not have an initial value, must be an {@link Integer}, a {@link Float}, a {@link |
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* Long}, a {@link Double} or a {@link String}. |
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* @throws IllegalStateException If a subclass calls this constructor. |
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*/ |
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public FieldNode( |
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final int access, |
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final String name, |
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final String descriptor, |
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final String signature, |
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final Object value) { |
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this(/* latest api = */ Opcodes.ASM8, access, name, descriptor, signature, value); |
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if (getClass() != FieldNode.class) { |
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throw new IllegalStateException(); |
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} |
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} |
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/** |
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* Constructs a new {@link FieldNode}. |
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* |
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* @param api the ASM API version implemented by this visitor. Must be one of {@link |
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* Opcodes#ASM4}, {@link Opcodes#ASM5}, {@link Opcodes#ASM6}, {@link Opcodes#ASM7} or {@link |
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* Opcodes#ASM8}. |
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* @param access the field's access flags (see {@link jdk.internal.org.objectweb.asm.Opcodes}). This parameter |
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* also indicates if the field is synthetic and/or deprecated. |
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* @param name the field's name. |
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* @param descriptor the field's descriptor (see {@link jdk.internal.org.objectweb.asm.Type}). |
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* @param signature the field's signature. |
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* @param value the field's initial value. This parameter, which may be {@literal null} if the |
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* field does not have an initial value, must be an {@link Integer}, a {@link Float}, a {@link |
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* Long}, a {@link Double} or a {@link String}. |
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*/ |
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public FieldNode( |
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final int api, |
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final int access, |
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final String name, |
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final String descriptor, |
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final String signature, |
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final Object value) { |
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super(api); |
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this.access = access; |
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this.name = name; |
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this.desc = descriptor; |
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this.signature = signature; |
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this.value = value; |
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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 descriptor, final boolean visible) { |
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AnnotationNode annotation = new AnnotationNode(descriptor); |
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if (visible) { |
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visibleAnnotations = Util.add(visibleAnnotations, annotation); |
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} else { |
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invisibleAnnotations = Util.add(invisibleAnnotations, annotation); |
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} |
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return annotation; |
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} |
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@Override |
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public AnnotationVisitor visitTypeAnnotation( |
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final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
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TypeAnnotationNode typeAnnotation = new TypeAnnotationNode(typeRef, typePath, descriptor); |
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if (visible) { |
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visibleTypeAnnotations = Util.add(visibleTypeAnnotations, typeAnnotation); |
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} else { |
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invisibleTypeAnnotations = Util.add(invisibleTypeAnnotations, typeAnnotation); |
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} |
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return typeAnnotation; |
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} |
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@Override |
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public void visitAttribute(final Attribute attribute) { |
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attrs = Util.add(attrs, attribute); |
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} |
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@Override |
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public void visitEnd() { |
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// Nothing to do. |
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} |
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// ----------------------------------------------------------------------------------------------- |
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// Accept methods |
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// ----------------------------------------------------------------------------------------------- |
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/** |
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* Checks that this field node is compatible with the given ASM API version. This method checks |
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* that this node, and all its children recursively, do not contain elements that were introduced |
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* in more recent versions of the ASM API than the given version. |
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* |
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* @param api an ASM API version. Must be one of {@link Opcodes#ASM4}, {@link Opcodes#ASM5}, |
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* {@link Opcodes#ASM6} or {@link Opcodes#ASM7}. |
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*/ |
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public void check(final int api) { |
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if (api == Opcodes.ASM4) { |
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if (visibleTypeAnnotations != null && !visibleTypeAnnotations.isEmpty()) { |
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throw new UnsupportedClassVersionException(); |
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} |
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if (invisibleTypeAnnotations != null && !invisibleTypeAnnotations.isEmpty()) { |
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throw new UnsupportedClassVersionException(); |
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} |
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} |
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} |
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/** |
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* Makes the given class visitor visit this field. |
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* |
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* @param classVisitor a class visitor. |
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*/ |
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public void accept(final ClassVisitor classVisitor) { |
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FieldVisitor fieldVisitor = classVisitor.visitField(access, name, desc, signature, value); |
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if (fieldVisitor == null) { |
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return; |
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} |
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// Visit the annotations. |
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if (visibleAnnotations != null) { |
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for (int i = 0, n = visibleAnnotations.size(); i < n; ++i) { |
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AnnotationNode annotation = visibleAnnotations.get(i); |
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annotation.accept(fieldVisitor.visitAnnotation(annotation.desc, true)); |
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} |
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} |
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if (invisibleAnnotations != null) { |
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for (int i = 0, n = invisibleAnnotations.size(); i < n; ++i) { |
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AnnotationNode annotation = invisibleAnnotations.get(i); |
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annotation.accept(fieldVisitor.visitAnnotation(annotation.desc, false)); |
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} |
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} |
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if (visibleTypeAnnotations != null) { |
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for (int i = 0, n = visibleTypeAnnotations.size(); i < n; ++i) { |
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TypeAnnotationNode typeAnnotation = visibleTypeAnnotations.get(i); |
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typeAnnotation.accept( |
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fieldVisitor.visitTypeAnnotation( |
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typeAnnotation.typeRef, typeAnnotation.typePath, typeAnnotation.desc, true)); |
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} |
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} |
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if (invisibleTypeAnnotations != null) { |
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for (int i = 0, n = invisibleTypeAnnotations.size(); i < n; ++i) { |
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TypeAnnotationNode typeAnnotation = invisibleTypeAnnotations.get(i); |
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typeAnnotation.accept( |
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fieldVisitor.visitTypeAnnotation( |
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typeAnnotation.typeRef, typeAnnotation.typePath, typeAnnotation.desc, false)); |
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} |
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} |
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// Visit the non standard attributes. |
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if (attrs != null) { |
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for (int i = 0, n = attrs.size(); i < n; ++i) { |
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fieldVisitor.visitAttribute(attrs.get(i)); |
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} |
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} |
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fieldVisitor.visitEnd(); |
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} |
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} |