1 cananian 1.1.2.2 // CFGEdge.java, created Tue Jan 4 22:52:37 2000 by duncan
2 cananian 1.1.2.2 // Copyright (C) 1998 Duncan Bryce <duncan@lcs.mit.edu>
3 cananian 1.1.2.2 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 duncan 1.1.2.1 package harpoon.IR.Properties;
5 duncan 1.1.2.1
6 duncan 1.1.2.1 import harpoon.ClassFile.HCodeElement;
7 cananian 1.6 import harpoon.Util.Collections.Graph;
8 duncan 1.1.2.1
9 duncan 1.1.2.1 /**
10 duncan 1.1.2.1 * An <code>CFGEdge</code> connects two <code>CFGraphable</code>s
11 duncan 1.1.2.1 * in a graph structure.
12 duncan 1.1.2.1 *
13 duncan 1.1.2.1 * @author Duncan Bryce <duncan@lcs.mit.edu>
14 cananian 1.6 * @version $Id: CFGEdge.java,v 1.6 2003/05/09 20:38:45 cananian Exp $
15 duncan 1.1.2.1 * @see CFGraphable
16 duncan 1.1.2.1 */
17 cananian 1.4 public abstract class CFGEdge<CFG extends CFGraphable<CFG,E>,
18 cananian 1.4 E extends CFGEdge<CFG,E>>
19 cananian 1.6 implements harpoon.ClassFile.HCodeEdge<CFG>, Graph.Edge<CFG,E> {
20 duncan 1.1.2.1 /** Returns the source of this <code>CFGEdge</code>.
21 duncan 1.1.2.1 * The return value is guaranteed to implement to
22 duncan 1.1.2.1 * <code>CFGraphable</code> interface. */
23 cananian 1.5 public abstract CFG from();
24 duncan 1.1.2.1
25 duncan 1.1.2.1 /** Returns the destination of this <code>HCodeEdge</code>.
26 duncan 1.1.2.1 * The return value is guaranteed to implement to
27 duncan 1.1.2.1 * <code>CFGraphable</code> interface. */
28 cananian 1.5 public abstract CFG to();
29 cananian 1.2 }