| /* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under |
| * the terms of the Common Public License v1.0 which accompanies this distribution, |
| * and is available at http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * $Id: InnerClassesAttribute_info.java,v 1.1.1.1 2004/05/09 16:57:48 vlad_r Exp $ |
| */ |
| package com.vladium.jcd.cls.attribute; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import com.vladium.jcd.lib.UDataInputStream; |
| import com.vladium.jcd.lib.UDataOutputStream; |
| |
| // ---------------------------------------------------------------------------- |
| /** |
| * @author Vlad Roubtsov, (C) 2003 |
| */ |
| public |
| final class InnerClassesAttribute_info extends Attribute_info |
| { |
| // public: ................................................................ |
| |
| // ACCESSORS: |
| |
| public boolean makesClassNested (final int class_index, final int [] nestedAccessFlags) |
| { |
| if (class_index > 0) |
| { |
| // TODO: avoid linear loop by keeping all class indices in a bitset |
| |
| for (int i = 0, iLimit = size (); i < iLimit; ++ i) |
| { |
| final InnerClass_info info = get (i); |
| |
| if (info.m_inner_class_index == class_index) |
| { |
| nestedAccessFlags [0] = info.m_inner_access_flags; |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Returns {@link InnerClass_info} descriptor at a given offset. |
| * |
| * @param offset inner class entry offset [must be in [0, size()) range; |
| * input not checked] |
| * @return InnerClass_info descriptor [never null] |
| * |
| * @throws IndexOutOfBoundsException if 'offset' is outside of valid range |
| */ |
| public final InnerClass_info get (final int offset) |
| { |
| return (InnerClass_info) m_classes.get (offset); |
| } |
| |
| /** |
| * Returns the number of descriptors in this collection [can be 0]. |
| */ |
| public final int size () |
| { |
| return m_classes.size (); |
| } |
| |
| public final long length () |
| { |
| return 8 + (m_classes.size () << 3); // use size() if class becomes non-final |
| } |
| |
| // Visitor: |
| |
| public void accept (final IAttributeVisitor visitor, final Object ctx) |
| { |
| visitor.visit (this, ctx); |
| } |
| |
| public String toString () |
| { |
| final StringBuffer s = new StringBuffer ("InnerClassesAttribute_info: [attribute_name_index = " + m_name_index + ", attribute_length = " + length () + "]\n"); |
| |
| for (int l = 0; l < size (); ++ l) |
| { |
| s.append (" " + get (l)); |
| s.append ("\n"); // TODO: proper EOL const |
| } |
| |
| return s.toString (); |
| } |
| |
| // Cloneable: |
| |
| /** |
| * Performs a deep copy. |
| */ |
| public Object clone () |
| { |
| final InnerClassesAttribute_info _clone = (InnerClassesAttribute_info) super.clone (); |
| |
| final List/* InnerClass_info */ classes = m_classes; |
| |
| // do deep copy: |
| final int class_count = classes.size (); // use size() if class becomes non-final |
| _clone.m_classes = new ArrayList (class_count); |
| for (int e = 0; e < class_count; ++ e) |
| { |
| _clone.m_classes.add (((InnerClass_info) classes.get (e)).clone ()); |
| } |
| |
| return _clone; |
| } |
| |
| // IClassFormatOutput: |
| |
| public void writeInClassFormat (final UDataOutputStream out) throws IOException |
| { |
| super.writeInClassFormat (out); |
| |
| final List/* InnerClass_info */ classes = m_classes; |
| |
| final int class_count = classes.size (); // use size() if class becomes non-final |
| out.writeU2 (class_count); |
| |
| for (int l = 0; l < class_count; ++ l) |
| { |
| ((InnerClass_info) classes.get (l)).writeInClassFormat (out); |
| } |
| } |
| |
| // protected: ............................................................. |
| |
| // package: ............................................................... |
| |
| |
| InnerClassesAttribute_info (final int attribute_name_index, final long attribute_length, |
| final UDataInputStream bytes) |
| throws IOException |
| { |
| super (attribute_name_index, attribute_length); |
| |
| final int class_count = bytes.readU2 (); |
| final List/* InnerClass_info */ classes = new ArrayList (class_count); |
| |
| for (int i = 0; i < class_count; ++ i) |
| { |
| classes.add (new InnerClass_info (bytes)); |
| } |
| |
| m_classes = classes; |
| } |
| |
| // private: ............................................................... |
| |
| |
| private List/* InnerClass_info */ m_classes; // never null |
| |
| } // end of class |
| // ---------------------------------------------------------------------------- |