public virtual int compareTo(GraphElement o)
{
const int BEFORE = -1;
const int EQUAL = 0;
const int AFTER = 1;
if (this == o)
{
return(EQUAL);
}
if (labelSet == null && o.labelSet != null)
{
return(BEFORE);
}
if (labelSet != null && o.labelSet == null)
{
return(AFTER);
}
if (labelSet == null && o.labelSet == null)
{
return(EQUAL);
}
int comparison = EQUAL;
foreach (SymbolTable table in labelSet.Keys)
{
int?ocode = o.labelSet.get(table);
int?tcode = labelSet.get(table);
if (ocode != null && tcode != null)
{
if (!ocode.Equals(tcode))
{
try
{
comparison = table.getSymbolCodeToString(tcode.Value).CompareTo(table.getSymbolCodeToString(ocode.Value));
if (comparison != EQUAL)
{
return(comparison);
}
}
catch (MaltChainedException)
{
}
}
}
}
return(EQUAL);
}
public override bool Equals(object obj)
{
GraphElement ge = (GraphElement)obj;
return(belongsToGraph == ge.BelongsToGraph && labelSet == null ? ge.LabelSet == null : labelSet.Equals(ge.LabelSet));
}