1/* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved. 2 * 3 * This program and the accompanying materials are made available under 4 * the terms of the Common Public License v1.0 which accompanies this distribution, 5 * and is available at http://www.eclipse.org/legal/cpl-v10.html 6 * 7 * $Id: InterfaceCollection.java,v 1.1.1.1 2004/05/09 16:57:46 vlad_r Exp $ 8 */ 9package com.vladium.jcd.cls; 10 11import java.io.IOException; 12 13import com.vladium.jcd.lib.UDataOutputStream; 14import com.vladium.util.IntVector; 15 16// ---------------------------------------------------------------------------- 17/** 18 * @author (C) 2001, Vlad Roubtsov 19 */ 20final class InterfaceCollection implements IInterfaceCollection 21{ 22 // public: ................................................................ 23 24 // ACCESSORS: 25 26 public int get (final int offset) 27 { 28 return m_interfaces.get (offset); 29 } 30 31 public int size () 32 { 33 return m_interfaces.size (); 34 } 35 36 // Cloneable: 37 38 /** 39 * Performs a deep copy. 40 */ 41 public Object clone () 42 { 43 try 44 { 45 final InterfaceCollection _clone = (InterfaceCollection) super.clone (); 46 47 // deep clone: 48 _clone.m_interfaces = (IntVector) m_interfaces.clone (); 49 50 return _clone; 51 } 52 catch (CloneNotSupportedException e) 53 { 54 throw new InternalError (e.toString ()); 55 } 56 } 57 58 // IClassFormatOutput: 59 60 public void writeInClassFormat (final UDataOutputStream out) throws IOException 61 { 62 int _interfaces_count = m_interfaces.size (); // use size() if class becomes non-final 63 out.writeU2 (_interfaces_count); 64 65 for (int i = 0; i < _interfaces_count; i++) 66 { 67 out.writeU2 (get (i)); 68 } 69 } 70 71 // Visitor: 72 73 public void accept (final IClassDefVisitor visitor, final Object ctx) 74 { 75 visitor.visit (this, ctx); 76 } 77 78 79 // MUTATORS: 80 81 public int add (final int interface_index) 82 { 83 final int newoffset = m_interfaces.size (); // use size() if class becomes non-final 84 m_interfaces.add (interface_index); 85 86 return newoffset; 87 } 88 89 public int set (final int offset, final int interface_index) 90 { 91 return m_interfaces.set (offset, interface_index); 92 } 93 94 // protected: ............................................................. 95 96 // package: ............................................................... 97 98 99 InterfaceCollection (final int capacity) 100 { 101 m_interfaces = capacity < 0 ? new IntVector () : new IntVector (capacity); 102 } 103 104 // private: ............................................................... 105 106 107 private IntVector m_interfaces; // vector of constant pool indices 108 109} // end of class 110// ---------------------------------------------------------------------------- 111