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1: /* VMFrame.java -- Reference implementation of VM hooks for JDWP Frame access. 2: Copyright (C) 2005 Free Software Foundation 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: terms of your choice, provided that you also meet, for each linked 32: independent module, the terms and conditions of the license of that 33: module. An independent module is a module which is not derived from 34: or based on this library. If you modify this library, you may extend 35: this exception to your version of the library, but you are not 36: obligated to do so. If you do not wish to do so, delete this 37: exception statement from your version. */ 38: 39: 40: package gnu.classpath.jdwp; 41: 42: import gnu.classpath.jdwp.util.Location; 43: 44: /** 45: * Reference implementation of VM hooks for JDWP Frame access. 46: * 47: * @author aluchko 48: */ 49: 50: public class VMFrame 51: { 52: // The object this frame resides in 53: private Object obj; 54: 55: // The current location of this frame 56: private Location loc; 57: 58: // id of this frame 59: private long id; 60: 61: /** 62: * Gets the current location of the frame. 63: */ 64: public Location getLocation() 65: { 66: return loc; 67: } 68: 69: /** 70: * Returns the value of the variable in the given slot. 71: * 72: * @param slot the slot containing the variable 73: */ 74: public Object getValue(int slot) { return null; } 75: 76: /** 77: * Assigns the given variable to the given value. 78: * @param slot The slot which contains the variable 79: * @param value The value to assign the variable to 80: */ 81: public void setValue(int slot, Object value) { } 82: 83: /** 84: * Get the object which is represented by 'this' in the context of the frame, 85: * returns null if the method is native or static. 86: */ 87: public Object getObject() 88: { 89: return obj; 90: } 91: 92: /** 93: * Get the frameID 94: * @return an id which is unique within the scope of the VM 95: */ 96: public long getId() 97: { 98: return id; 99: } 100: 101: }