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: CONSTANT_ref_info.java,v 1.1.1.1 2004/05/09 16:57:49 vlad_r Exp $ 8 */ 9 package com.vladium.jcd.cls.constant; 10 11 import java.io.IOException; 12 13 import com.vladium.jcd.lib.UDataInputStream; 14 import com.vladium.jcd.lib.UDataOutputStream; 15 16 // ---------------------------------------------------------------------------- 17 /** 18 * Abstract base for all CONSTANT_XXXref_info structures. They all have a constant 19 * pool pointer to a {@link CONSTANT_Class_info} and {@link CONSTANT_NameAndType_info} 20 * entries.<P> 21 * 22 * The value of the class_index item must be a valid index into the constant pool 23 * table. The constant pool entry at that index must be a {@link CONSTANT_Class_info} 24 * structure representing the class or interface type that contains the declaration 25 * of the field or method.<P> 26 * 27 * The class_index item of a {@link CONSTANT_Fieldref_info} or a {@link CONSTANT_Methodref_info} 28 * structure must be a class type, not an interface type. The class_index item of 29 * a {@link CONSTANT_InterfaceMethodref_info} structure must be an interface type 30 * that declares the given method. 31 * 32 * @see CONSTANT_Fieldref_info 33 * @see CONSTANT_Methodref_info 34 * @see CONSTANT_InterfaceMethodref_info 35 * 36 * @author (C) 2001, Vlad Roubtsov 37 */ 38 public 39 abstract class CONSTANT_ref_info extends CONSTANT_info 40 { 41 // public: ................................................................ 42 43 44 public int m_class_index; 45 public int m_name_and_type_index; 46 47 // IClassFormatOutput: 48 49 public void writeInClassFormat (final UDataOutputStream out) throws IOException 50 { 51 super.writeInClassFormat (out); 52 53 out.writeU2 (m_class_index); 54 out.writeU2 (m_name_and_type_index); 55 } 56 57 // Cloneable: inherited clone() is Ok 58 59 // protected: ............................................................. 60 61 62 protected CONSTANT_ref_info (final UDataInputStream bytes) 63 throws IOException 64 { 65 m_class_index = bytes.readU2 (); 66 m_name_and_type_index = bytes.readU2 (); 67 } 68 69 protected CONSTANT_ref_info (final int class_index, final int name_and_type_index) 70 { 71 m_class_index = class_index; 72 m_name_and_type_index = name_and_type_index; 73 } 74 75 // package: ............................................................... 76 77 // private: ............................................................... 78 79 } // end of class 80 // ---------------------------------------------------------------------------- 81
