01: /* Soot - a J*va Optimization Framework
02: * Copyright (C) 2003 Navindra Umanee <navindra@cs.mcgill.ca>
03: *
04: * This library is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License as published by the Free Software Foundation; either
07: * version 2.1 of the License, or (at your option) any later version.
08: *
09: * This library is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12: * Lesser General Public License for more details.
13: *
14: * You should have received a copy of the GNU Lesser General Public
15: * License along with this library; if not, write to the
16: * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17: * Boston, MA 02111-1307, USA.
18: */
19:
20: package soot.shimple.internal;
21:
22: import soot.UnitBox;
23:
24: /**
25: * Extension of UnitBox to provide some extra information needed by
26: * SPatchingChain.
27: *
28: * @author Navindra Umanee
29: **/
30: public interface SUnitBox extends UnitBox {
31: /**
32: * Indicates whether the contents of the UnitBox may have been
33: * changed. Returns true if setUnit(Unit) has been called
34: * recently and was not followed by setUnitChanged(false).
35: *
36: * <p> Needed for Shimple internal Unit chain patching.
37: **/
38: public boolean isUnitChanged();
39:
40: /**
41: * Updates the value of the flag used to indicate whether the
42: * contents of the UnitBox may have changed.
43: *
44: * <p> Needed for Shimple internal Unit chain patching.
45: *
46: * @see #isUnitChanged()
47: **/
48: public void setUnitChanged(boolean unitChanged);
49: }
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