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-/* VMFrame.java -- Reference implementation of VM hooks for JDWP Frame access.
- Copyright (C) 2005, 2006, 2007 Free Software Foundation
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package gnu.classpath.jdwp;
-
-import gnu.classpath.jdwp.util.Location;
-import gnu.classpath.jdwp.value.Value;
-
-/**
- * Reference implementation of VM hooks for JDWP Frame access.
- *
- * @author aluchko
- */
-
-public class VMFrame
-{
- /**
- * Returns the size of a frame ID over JDWP
- */
- public static final int SIZE = 8;
-
- // The thread this frame resides in
- private Thread thread;
-
- //The object of this frame
- private Object obj;
-
- // The current location of this frame
- private Location loc;
-
- // id of this frame
- private long id;
-
- /**
- * Create a new VMFrame object.
- *
- * @param thr a Thread, the thread this frame is in
- * @param frame_id a long, the jframeID of this frame
- * @param frame_loc a Location, the location of this frame
- */
- public VMFrame(Thread thr, long frame_id, Location frame_loc,
- Object frame_obj)
- {
- thread = thr;
- id = frame_id;
- loc = frame_loc;
- obj = frame_obj;
- }
-
- /**
- * Gets the current location of the frame.
- */
- public Location getLocation()
- {
- return loc;
- }
-
- /**
- * Returns the value of the variable in the given slot.
- *
- * @param slot the slot containing the variable
- */
- public native Value getValue(int slot, byte sig);
-
- /**
- * Assigns the given variable to the given value.
- * @param slot The slot which contains the variable
- * @param value The value to assign the variable to
- */
- public native void setValue(int slot, Value value);
-
- /**
- * Get the thread this frame is in.
- */
- public Thread getThread()
- {
- return thread;
- }
-
- /**
- * Get the object which is represented by 'this' in the context of the frame,
- * returns null if the method is native or static.
- */
- public Object getObject()
- {
- return obj;
- }
-
- /**
- * Get the frameID
- * @return an id which is unique within the scope of the VM
- */
- public long getId()
- {
- return id;
- }
-
-}