| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| package com.sun.org.apache.bcel.internal.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 com.sun.org.apache.bcel.internal.Constants; |
| import java.io.*; |
| |
| /** |
| * Abstract super class for fields and methods. |
| * |
| * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
| */ |
| public abstract class FieldOrMethod extends AccessFlags implements Cloneable, Node { |
| protected int name_index; // Points to field name in constant pool |
| protected int signature_index; // Points to encoded signature |
| protected int attributes_count;// No. of attributes |
| protected Attribute[] attributes; // Collection of attributes |
| protected ConstantPool constant_pool; |
| |
| 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.getAccessFlags(), c.getNameIndex(), c.getSignatureIndex(), |
| c.getAttributes(), c.getConstantPool()); |
| } |
| |
| /** |
| * Construct object from file stream. |
| * @param file Input stream |
| * @throws IOException |
| * @throws ClassFormatException |
| */ |
| protected FieldOrMethod(DataInputStream file, ConstantPool constant_pool) |
| throws IOException, ClassFormatException |
| { |
| this(file.readUnsignedShort(), file.readUnsignedShort(), |
| file.readUnsignedShort(), null, constant_pool); |
| |
| attributes_count = file.readUnsignedShort(); |
| attributes = new Attribute[attributes_count]; |
| for(int i=0; i < attributes_count; i++) |
| attributes[i] = Attribute.readAttribute(file, constant_pool); |
| } |
| |
| /** |
| * @param access_flags Access rights of method |
| * @param name_index Points to field name in constant pool |
| * @param signature_index Points to encoded signature |
| * @param attributes Collection of attributes |
| * @param constant_pool Array of constants |
| */ |
| protected FieldOrMethod(int access_flags, int name_index, int signature_index, |
| Attribute[] attributes, ConstantPool constant_pool) |
| { |
| this.access_flags = access_flags; |
| this.name_index = name_index; |
| this.signature_index = signature_index; |
| this.constant_pool = constant_pool; |
| |
| setAttributes(attributes); |
| } |
| |
| /** |
| * Dump object to file stream on binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException |
| */ |
| public final void dump(DataOutputStream file) throws IOException |
| { |
| file.writeShort(access_flags); |
| file.writeShort(name_index); |
| file.writeShort(signature_index); |
| file.writeShort(attributes_count); |
| |
| for(int i=0; i < attributes_count; i++) |
| attributes[i].dump(file); |
| } |
| |
| /** |
| * @return Collection of object attributes. |
| */ |
| public final Attribute[] getAttributes() { return attributes; } |
| |
| /** |
| * @param attributes Collection of object attributes. |
| */ |
| public final void setAttributes(Attribute[] attributes) { |
| this.attributes = attributes; |
| attributes_count = (attributes == null)? 0 : attributes.length; |
| } |
| |
| /** |
| * @return Constant pool used by this object. |
| */ |
| public final ConstantPool getConstantPool() { return constant_pool; } |
| |
| /** |
| * @param constant_pool Constant pool to be used for this object. |
| */ |
| public final void setConstantPool(ConstantPool constant_pool) { |
| this.constant_pool = constant_pool; |
| } |
| |
| /** |
| * @return Index in constant pool of object's name. |
| */ |
| public final int getNameIndex() { return name_index; } |
| |
| /** |
| * @param name_index Index in constant pool of object's name. |
| */ |
| public final void setNameIndex(int name_index) { |
| this.name_index = name_index; |
| } |
| |
| /** |
| * @return Index in constant pool of field signature. |
| */ |
| public final int getSignatureIndex() { return signature_index; } |
| |
| /** |
| * @param signature_index Index in constant pool of field signature. |
| */ |
| public final void setSignatureIndex(int signature_index) { |
| this.signature_index = signature_index; |
| } |
| |
| /** |
| * @return Name of object, i.e., method name or field name |
| */ |
| public final String getName() { |
| ConstantUtf8 c; |
| c = (ConstantUtf8)constant_pool.getConstant(name_index, |
| Constants.CONSTANT_Utf8); |
| return c.getBytes(); |
| } |
| |
| /** |
| * @return String representation of object's type signature (java style) |
| */ |
| public final String getSignature() { |
| ConstantUtf8 c; |
| c = (ConstantUtf8)constant_pool.getConstant(signature_index, |
| Constants.CONSTANT_Utf8); |
| return c.getBytes(); |
| } |
| |
| /** |
| * @return deep copy of this field |
| */ |
| protected FieldOrMethod copy_(ConstantPool constant_pool) { |
| FieldOrMethod c = null; |
| |
| try { |
| c = (FieldOrMethod)clone(); |
| } catch(CloneNotSupportedException e) {} |
| |
| c.constant_pool = constant_pool; |
| c.attributes = new Attribute[attributes_count]; |
| |
| for(int i=0; i < attributes_count; i++) |
| c.attributes[i] = attributes[i].copy(constant_pool); |
| |
| return c; |
| } |
| } |