public int CompareTo(ProgramCounter pc)
{
int result;
result = methodNumber.CompareTo(pc.methodNumber);
if (result != 0)
return result;
else
return nextBlock.CompareTo(pc.nextBlock);
}
public bool Equals(ProgramCounter pc)
{
return (methodNumber == pc.methodNumber && nextBlock == pc.nextBlock);
}
public ProgramCounterTuple(ProgramCounter[] counters)
{
pcs = counters;
}
public ProgramCounterTuple ProgramCounters()
{
ProgramCounter[] pcs = new ProgramCounter[stateImpl.NumProcesses];
for (int i = 0; i < stateImpl.NumProcesses; i++)
{
ZingMethod topOfStack = stateImpl.GetProcess(i).TopOfStack;
if (topOfStack == null)
pcs[i] = new ProgramCounter();
else
pcs[i] = new ProgramCounter(topOfStack);
}
return new ProgramCounterTuple(pcs);
}