public ActionFlowGraph (ControlFlowGraph cfg, Collection<ActionBlock> blocks)
{
if (null == cfg) throw new ArgumentNullException ("cfg");
if (null == blocks) throw new ArgumentNullException ("blocks");
_cfg = cfg;
_blocks = blocks;
}
internal ActionFlowGraphBuilder (ControlFlowGraph cfg)
{
_method = cfg.MethodBody.Method;
_cfg = cfg;
_expressionDecompiler = new ExpressionDecompiler (_method);
_graph = new ActionFlowGraph (_cfg, _blocks);
}
public static void FormatControlFlowGraph(TextWriter writer, ControlFlowGraph cfg)
{
int id = 1;
foreach (InstructionBlock block in cfg.Blocks) {
writer.WriteLine ("block {0}:", id);
writer.WriteLine ("\tbody:");
foreach (Instruction instruction in block) {
writer.Write ("\t\t");
Formatter.WriteInstruction (writer, instruction);
writer.WriteLine ();
}
InstructionBlock [] successors = block.Successors;
if (successors.Length > 0) {
writer.WriteLine ("\tsuccessors:");
foreach (InstructionBlock successor in successors) {
writer.WriteLine ("\t\tblock {0}", GetBlockId (cfg, successor));
}
}
++id;
}
}
private static int GetBlockId(ControlFlowGraph cfg, InstructionBlock block)
{
return ((IList) cfg.Blocks).IndexOf (block) + 1;
}
public static ActionFlowGraph CreateActionFlowGraph (ControlFlowGraph cfg)
{
if (null == cfg) throw new ArgumentNullException ("cfg");
ActionFlowGraphBuilder builder = new ActionFlowGraphBuilder (cfg);
return builder.BuildGraph ();
}
public static string ToString (ControlFlowGraph cfg)
{
StringWriter writer = new StringWriter ();
FormatControlFlowGraph (writer, cfg);
return writer.ToString ();
}