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/*
* 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.*;
/**
* This class is derived from <em>Attribute</em> and denotes that this class
* is an Inner class of another.
* to the source file of this class.
* It is instantiated from the <em>Attribute.readAttribute()</em> method.
*
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
* @see Attribute
*/
public final class InnerClasses extends Attribute {
private InnerClass[] inner_classes;
private int number_of_classes;
/**
* Initialize from another object. Note that both objects use the same
* references (shallow copy). Use clone() for a physical copy.
*/
public InnerClasses(InnerClasses c) {
this(c.getNameIndex(), c.getLength(), c.getInnerClasses(),
c.getConstantPool());
}
/**
* @param name_index Index in constant pool to CONSTANT_Utf8
* @param length Content length in bytes
* @param inner_classes array of inner classes attributes
* @param constant_pool Array of constants
* @param sourcefile_index Index in constant pool to CONSTANT_Utf8
*/
public InnerClasses(int name_index, int length,
InnerClass[] inner_classes,
ConstantPool constant_pool)
{
super(Constants.ATTR_INNER_CLASSES, name_index, length, constant_pool);
setInnerClasses(inner_classes);
}
/**
* Construct object from file stream.
*
* @param name_index Index in constant pool to CONSTANT_Utf8
* @param length Content length in bytes
* @param file Input stream
* @param constant_pool Array of constants
* @throws IOException
*/
InnerClasses(int name_index, int length, DataInputStream file,
ConstantPool constant_pool) throws IOException
{
this(name_index, length, (InnerClass[])null, constant_pool);
number_of_classes = file.readUnsignedShort();
inner_classes = new InnerClass[number_of_classes];
for(int i=0; i < number_of_classes; i++)
inner_classes[i] = new InnerClass(file);
}
/**
* Called by objects that are traversing the nodes of the tree implicitely
* defined by the contents of a Java class. I.e., the hierarchy of methods,
* fields, attributes, etc. spawns a tree of objects.
*
* @param v Visitor object
*/
public void accept(Visitor v) {
v.visitInnerClasses(this);
}
/**
* Dump source file attribute to file stream in binary format.
*
* @param file Output file stream
* @throws IOException
*/
public final void dump(DataOutputStream file) throws IOException
{
super.dump(file);
file.writeShort(number_of_classes);
for(int i=0; i < number_of_classes; i++)
inner_classes[i].dump(file);
}
/**
* @return array of inner class "records"
*/
public final InnerClass[] getInnerClasses() { return inner_classes; }
/**
* @param inner_classes.
*/
public final void setInnerClasses(InnerClass[] inner_classes) {
this.inner_classes = inner_classes;
number_of_classes = (inner_classes == null)? 0 : inner_classes.length;
}
/**
* @return String representation.
*/
public final String toString() {
StringBuffer buf = new StringBuffer();
for(int i=0; i < number_of_classes; i++)
buf.append(inner_classes[i].toString(constant_pool) + "\n");
return buf.toString();
}
/**
* @return deep copy of this attribute
*/
public Attribute copy(ConstantPool constant_pool) {
InnerClasses c = (InnerClasses)clone();
c.inner_classes = new InnerClass[number_of_classes];
for(int i=0; i < number_of_classes; i++)
c.inner_classes[i] = inner_classes[i].copy();
c.constant_pool = constant_pool;
return c;
}
}
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