- 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.
- *
- * @version $Id: FieldOrMethod.java,v 1.1.1.1 2001/10/29 20:00:01 jvanzyl Exp $
- * @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
- * @throw IOException
- * @throw ClassFormatError
- */
- protected FieldOrMethod(DataInputStream file, ConstantPool constant_pool)
- throws IOException, ClassFormatError
- {
- 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
- * @throw 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;
- }
- }