private CollectionSetItemDelegate GetCollectionSetItemDelegate <T>(CollectionDataContract collectionContract, object resultCollectionObject, bool isReadOnlyCollection)
{
if (isReadOnlyCollection && collectionContract.Kind == CollectionKind.Array)
{
int arraySize = ((Array)resultCollectionObject).Length;
return((resultCollection, collectionItem, index) =>
{
if (index == arraySize)
{
XmlObjectSerializerReadContext.ThrowArrayExceededSizeException(arraySize, collectionContract.UnderlyingType);
}
((T[])resultCollection)[index] = (T)collectionItem;
return resultCollection;
});
}
else if (!isReadOnlyCollection && IsArrayLikeCollection(collectionContract))
{
return((resultCollection, collectionItem, index) =>
{
resultCollection = XmlObjectSerializerReadContext.EnsureArraySize((T[])resultCollection, index);
((T[])resultCollection)[index] = (T)collectionItem;
return resultCollection;
});
}
else if (collectionContract.Kind == CollectionKind.GenericDictionary || collectionContract.Kind == CollectionKind.Dictionary)
{
Type keyType = collectionContract.ItemType.GenericTypeArguments[0];
Type valueType = collectionContract.ItemType.GenericTypeArguments[1];
Func <object, object> objectToKeyValuePairGetKey = (Func <object, object>)s_objectToKeyValuePairGetKey.MakeGenericMethod(keyType, valueType).CreateDelegate(typeof(Func <object, object>));
Func <object, object> objectToKeyValuePairGetValue = (Func <object, object>)s_objectToKeyValuePairGetValue.MakeGenericMethod(keyType, valueType).CreateDelegate(typeof(Func <object, object>));
if (collectionContract.Kind == CollectionKind.GenericDictionary)
{
return((resultCollection, collectionItem, index) =>
{
object key = objectToKeyValuePairGetKey(collectionItem);
object value = objectToKeyValuePairGetValue(collectionItem);
collectionContract.AddMethod.Invoke(resultCollection, new object[] { key, value });
return resultCollection;
});
}
else
{
return((resultCollection, collectionItem, index) =>
{
object key = objectToKeyValuePairGetKey(collectionItem);
object value = objectToKeyValuePairGetValue(collectionItem);
IDictionary dict = (IDictionary)resultCollection;
dict.Add(key, value);
return resultCollection;
});
}
}
else
{
Type collectionType = resultCollectionObject.GetType();
Type genericCollectionType = typeof(ICollection <T>);
Type typeIList = Globals.TypeOfIList;
if (genericCollectionType.IsAssignableFrom(collectionType))
{
return((resultCollection, collectionItem, index) =>
{
((ICollection <T>)resultCollection).Add((T)collectionItem);
return resultCollection;
});
}
else if (typeIList.IsAssignableFrom(collectionType))
{
return((resultCollection, collectionItem, index) =>
{
((IList)resultCollection).Add(collectionItem);
return resultCollection;
});
}
else
{
MethodInfo addMethod = collectionContract.AddMethod;
if (addMethod == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(SR.Format(SR.CollectionMustHaveAddMethod, DataContract.GetClrTypeFullName(collectionContract.UnderlyingType))));
}
return((resultCollection, collectionItem, index) =>
{
addMethod.Invoke(resultCollection, new object[] { collectionItem });
return resultCollection;
});
}
}
}