public override void ConvertToSurrogate(ImmutableSortedDictionary <TKey, TValue> value, ref ImmutableSortedDictionarySurrogate <TKey, TValue> surrogate)
{
if (value is null)
{
surrogate = default;
return;
}
else
{
surrogate = new ImmutableSortedDictionarySurrogate <TKey, TValue>
{
Values = new List <KeyValuePair <TKey, TValue> >(value)
};
if (!ReferenceEquals(value.KeyComparer, Comparer <TKey> .Default))
{
surrogate.KeyComparer = value.KeyComparer;
}
if (!ReferenceEquals(value.ValueComparer, EqualityComparer <TKey> .Default))
{
surrogate.ValueComparer = value.ValueComparer;
}
}
}
public override ImmutableSortedDictionary <TKey, TValue> ConvertFromSurrogate(ref ImmutableSortedDictionarySurrogate <TKey, TValue> surrogate)
{
if (surrogate.Values is null)
{
return(null);
}
else
{
var result = ImmutableSortedDictionary.CreateRange(surrogate.Values);
if (surrogate.KeyComparer is object && surrogate.ValueComparer is object)
{
result = result.WithComparers(surrogate.KeyComparer, surrogate.ValueComparer);
}
else if (surrogate.KeyComparer is object)
{
result = result.WithComparers(surrogate.KeyComparer);
}
return(result);
}
}