private static JsonDictionary <K, V> DictionaryUnion <K, V>(
JsonDictionary <K, V> thisDict,
JsonDictionary <K, V> thatDict,
Func <V, V, object> valueUnionizer = null)
where K : ICloneable where V : ICloneable
{
if (thatDict == null)
{
return(thisDict);
}
if (thisDict == null)
{
return((JsonDictionary <K, V>)thatDict.Clone());
}
foreach (KeyValuePair <K, V> item in thatDict)
{
if (!thisDict.ContainsKey(item.Key))
{
thisDict.Add(item.Key, item.Value);
continue;
}
if (valueUnionizer != null)
{
thisDict[item.Key] = (V)valueUnionizer(thisDict[item.Key], item.Value);
}
}
return(thisDict);
}
