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- package org.aspectj.apache.bcel.classfile;
-
- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" and
- * "Apache BCEL" must not be used to endorse or promote products
- * derived from this software without prior written permission. For
- * written permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * "Apache BCEL", nor may "Apache" appear in their name, without
- * prior written permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- import java.io.DataInputStream;
- import java.io.DataOutputStream;
- import java.io.IOException;
- import java.util.ArrayList;
- import java.util.List;
-
- import org.aspectj.apache.bcel.Constants;
- import org.aspectj.apache.bcel.classfile.annotation.AnnotationGen;
- import org.aspectj.apache.bcel.classfile.annotation.RuntimeAnnos;
-
- /**
- * Abstract super class for fields and methods.
- *
- * @version $Id: FieldOrMethod.java,v 1.12 2009/09/15 19:40:12 aclement Exp $
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
- */
- public abstract class FieldOrMethod extends Modifiers implements Node {
- protected int nameIndex;
- protected int signatureIndex;
- protected Attribute[] attributes;
-
- protected ConstantPool cpool;
- private String name; // lazily initialized
- private String signature; // lazily initialized
- private AnnotationGen[] annotations; // lazily initialized
- private String signatureAttributeString = null;
- private boolean searchedForSignatureAttribute = false;
-
- protected FieldOrMethod() {
- }
-
- /**
- * Initialize from another object. Note that both objects use the same references (shallow copy). Use clone() for a physical
- * copy.
- */
- protected FieldOrMethod(FieldOrMethod c) {
- this(c.getModifiers(), c.getNameIndex(), c.getSignatureIndex(), c.getAttributes(), c.getConstantPool());
- }
-
- protected FieldOrMethod(DataInputStream file, ConstantPool cpool) throws IOException {
- this(file.readUnsignedShort(), file.readUnsignedShort(), file.readUnsignedShort(), null, cpool);
- attributes = AttributeUtils.readAttributes(file, cpool);
- }
-
- protected FieldOrMethod(int accessFlags, int nameIndex, int signatureIndex, Attribute[] attributes, ConstantPool cpool) {
- this.modifiers = accessFlags;
- this.nameIndex = nameIndex;
- this.signatureIndex = signatureIndex;
- this.cpool = cpool;
- this.attributes = attributes;
- }
-
- /**
- * @param attributes Collection of object attributes.
- */
- public void setAttributes(Attribute[] attributes) {
- this.attributes = attributes;
- }
-
- public final void dump(DataOutputStream file) throws IOException {
- file.writeShort(modifiers);
- file.writeShort(nameIndex);
- file.writeShort(signatureIndex);
- AttributeUtils.writeAttributes(attributes, file);
- }
-
- public final Attribute[] getAttributes() {
- return attributes;
- }
-
- public final ConstantPool getConstantPool() {
- return cpool;
- }
-
- public final int getNameIndex() {
- return nameIndex;
- }
-
- public final int getSignatureIndex() {
- return signatureIndex;
- }
-
- public final String getName() {
- if (name == null) {
- ConstantUtf8 c = (ConstantUtf8) cpool.getConstant(nameIndex, Constants.CONSTANT_Utf8);
- name = c.getValue();
- }
- return name;
- }
-
- public final String getSignature() {
- if (signature == null) {
- ConstantUtf8 c = (ConstantUtf8) cpool.getConstant(signatureIndex, Constants.CONSTANT_Utf8);
- signature = c.getValue();
- }
- return signature;
- }
-
- /**
- * This will return the contents of a signature attribute attached to a member, or if there is none it will return the same as
- * 'getSignature()'. Signature attributes are attached to members that were declared generic.
- */
- public final String getDeclaredSignature() {
- if (getGenericSignature() != null)
- return getGenericSignature();
- return getSignature();
- }
-
- public AnnotationGen[] getAnnotations() {
- // Ensure we have unpacked any attributes that contain annotations.
- // We don't remove these annotation attributes from the attributes list, they
- // remain there.
- if (annotations == null) {
- // Find attributes that contain annotation data
- List<AnnotationGen> accumulatedAnnotations = new ArrayList<AnnotationGen>();
- for (int i = 0; i < attributes.length; i++) {
- Attribute attribute = attributes[i];
- if (attribute instanceof RuntimeAnnos) {
- RuntimeAnnos runtimeAnnotations = (RuntimeAnnos) attribute;
- accumulatedAnnotations.addAll(runtimeAnnotations.getAnnotations());
- }
- }
- if (accumulatedAnnotations.size() == 0) {
- annotations = AnnotationGen.NO_ANNOTATIONS;
- } else {
- annotations = accumulatedAnnotations.toArray(new AnnotationGen[] {});
- }
- }
- return annotations;
- }
-
- /**
- * Hunts for a signature attribute on the member and returns its contents. So where the 'regular' signature may be
- * (Ljava/util/Vector;)V the signature attribute may in fact say 'Ljava/lang/Vector<Ljava/lang/String>;' Coded for performance -
- * searches for the attribute only when requested - only searches for it once.
- */
- public final String getGenericSignature() {
- if (!searchedForSignatureAttribute) {
- Signature sig = AttributeUtils.getSignatureAttribute(attributes);
- signatureAttributeString = (sig == null ? null : sig.getSignature());
- searchedForSignatureAttribute = true;
- }
- return signatureAttributeString;
- }
-
- }
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