169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/* 269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Javassist, a Java-bytecode translator toolkit. 369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Copyright (C) 1999-2007 Shigeru Chiba, and others. All Rights Reserved. 469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * The contents of this file are subject to the Mozilla Public License Version 669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1.1 (the "License"); you may not use this file except in compliance with 769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the License. Alternatively, the contents of this file may be used under 869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the terms of the GNU Lesser General Public License Version 2.1 or later. 969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Software distributed under the License is distributed on an "AS IS" basis, 1169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 1269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * for the specific language governing rights and limitations under the 1369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * License. 1469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 1569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpackage javassist.bytecode.analysis; 1669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 1769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.ArrayList; 1869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.Collection; 1969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.HashSet; 2069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.List; 2169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.Set; 2269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 2369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/** 2469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Represents a nested method subroutine (marked by JSR and RET). 2569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 2669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @author Jason T. Greene 2769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 2869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpublic class Subroutine { 2969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal //private Set callers = new HashSet(); 3069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal private List callers = new ArrayList(); 3169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal private Set access = new HashSet(); 3269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal private int start; 3369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 3469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public Subroutine(int start, int caller) { 3569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal this.start = start; 3669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal callers.add(new Integer(caller)); 3769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 3869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 3969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public void addCaller(int caller) { 4069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal callers.add(new Integer(caller)); 4169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 4269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 4369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public int start() { 4469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return start; 4569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 4669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 4769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public void access(int index) { 4869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal access.add(new Integer(index)); 4969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 5069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 5169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public boolean isAccessed(int index) { 5269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return access.contains(new Integer(index)); 5369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 5469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 5569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public Collection accessed() { 5669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return access; 5769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 5869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 5969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public Collection callers() { 6069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return callers; 6169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 6269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 6369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public String toString() { 6469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return "start = " + start + " callers = " + callers.toString(); 6569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 6669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal}