protected override bool Run()
{
while (frame < values.GetLength(0))
{
while (name < values.GetLength(1))
{
// If we have reached the end of a list of names for the current frame, then we have an answer!
if (name == values.GetLength(1) - 1)
{
result = values[frame, name];
return(true);
}
// If this is not a frame, but there are still more names, then this is an error.
if (!(values[frame, name] is Frame))
{
master.ReportLookupError(this);
}
got_value = false;
delayed = false;
// Otherwise, try to get the current value for the current name
if (!((Frame)values[frame, name]).GetOrSubscribe(names[name], ConsumeResult))
{
// The value isn't yet computed. Signal our callback that we want to be slotted.
delayed = true;
return(false);
}
// If we got nothing, then it doesn't exist in the current frame. Try the next.
if (!got_value)
{
name = 0;
frame++;
break;
}
}
}
// The name is undefined.
master.ReportLookupError(this);
return(false);
}
protected override bool Run()
{
while (frame_index < frames.Length)
{
int index = frame_index++;
var root_attempt = new Attempt(this, 0, index, frames[index]);
known_attempts.AddLast(root_attempt);
if (frames[index].GetOrSubscribe(names[0], root_attempt.Consume))
{
return(false);
}
}
master.ReportLookupError(this, null);
return(false);
}