org.quilt.cl
Class GraphTalker

java.lang.Object
  |
  +--org.quilt.cl.GraphTalker

All Implemented Interfaces:

GraphXformer, Visitor

public class GraphTalker

extends java.lang.Object

implements GraphXformer, Visitor

Walks through a control flow graph, displaying information about each vertex and edge. Useful for debugging and as a model GraphXformer implementation.

Author:

Jim Dixon

Constructor Summary

GraphTalker()

Method Summary

void	discoverEdge(Edge e) Called when initially visiting edge.
void	discoverGraph(Directed graph) Called at beginning of visiting a graph or subgraph.
void	discoverVertex(Vertex v) Called when beginning visit to vertex.
void	finishEdge(Edge e) Called at end of visit to edge.
void	finishGraph(Directed graph) Called at end of visiting a graph or subgraph.
void	finishVertex(Vertex v) Called at end of vertex visit.
static java.lang.String	getName()
static void	setName(java.lang.String s)
void	xform(org.apache.bcel.generic.ClassGen cg, org.apache.bcel.generic.MethodGen method, ControlFlowGraph cfg) Apply the transformation to the graph.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GraphTalker

public GraphTalker()

Method Detail

discoverGraph

public void discoverGraph(Directed graph)

Description copied from interface: Visitor

Called at beginning of visiting a graph or subgraph.

Specified by:

discoverGraph in interface Visitor

finishGraph

public void finishGraph(Directed graph)

Description copied from interface: Visitor

Called at end of visiting a graph or subgraph.

Specified by:

finishGraph in interface Visitor

discoverVertex

public void discoverVertex(Vertex v)

Description copied from interface: Visitor

Called when beginning visit to vertex. If the vertex is the entry point for a subgraph, discoverGraph for that subgraph must be called during the visit.

Specified by:

discoverVertex in interface Visitor

finishVertex

public void finishVertex(Vertex v)

Description copied from interface: Visitor

Called at end of vertex visit. If the vertex is an exit point for a subgraph, finishGraph for the subgraph must be called during the visit.

Specified by:

finishVertex in interface Visitor

discoverEdge

public void discoverEdge(Edge e)

Description copied from interface: Visitor

Called when initially visiting edge.

Specified by:

discoverEdge in interface Visitor

finishEdge

public void finishEdge(Edge e)

Description copied from interface: Visitor

Called at end of visit to edge.

Specified by:

finishEdge in interface Visitor

xform

public void xform(org.apache.bcel.generic.ClassGen cg,
                  org.apache.bcel.generic.MethodGen method,
                  ControlFlowGraph cfg)

Description copied from interface: GraphXformer

Apply the transformation to the graph.

Specified by:

xform in interface GraphXformer

Parameters:

cg - The class being transformed.

method - MethodGen for the method being transformed.

cfg - The method's control flow graph.

getName

public static java.lang.String getName()

setName

public static void setName(java.lang.String s)