private IValuable <G> Add(ICollectionValue <G> collectionValue, IValueProvider <G> valueProvider)
{
IValuable <G> newValuable = null;
switch (collectionValue)
{
case DefaultCollectionValue <G> listValue when !listValue.IsMap:
newValuable = valueProvider.GetCollection(new[] { new ValuePointer <G> {
Value = this
} }.Concat(collectionValue.GetEntries().Select(entry => entry.Value)), null);
break;
default:
throw new EngineRuntimeException("Invalid values for addition");
}
return(newValuable);
}