int getTargetLabel (Node target)
{
int label = target.labelId ();
if (label != -1) {
return label;
}
label = itsLabelTableTop;
if (itsLabelTable == null || label == itsLabelTable.Length) {
if (itsLabelTable == null) {
itsLabelTable = new int [MIN_LABEL_TABLE_SIZE];
}
else {
int [] tmp = new int [itsLabelTable.Length * 2];
Array.Copy (itsLabelTable, 0, tmp, 0, label);
itsLabelTable = tmp;
}
}
itsLabelTableTop = label + 1;
itsLabelTable [label] = -1;
target.labelId (label);
return label;
}
