private static bool TrySerializeAsPrimitiveValue(Type propertyType,
ProtobufFieldAttribute attribute,
out BuildingSerializer buildingSerializer)
{
buildingSerializer = null;
SerializerWithWireType serializer;
if ((attribute.DataType != DataType.Default &&
DataTypeToSerializerCache.TryGetSerializer(attribute.DataType, out serializer))
|| DefaultSerializersCache.TryGetSerializer(propertyType, out serializer))
{
{
buildingSerializer = new BuildingSerializer(serializer,
new SingleValueBuilder(propertyType));
return true;
}
}
return false;
}
private static bool TrySerializeAsCollection(Type propertyType,
ProtobufFieldAttribute attribute, bool examineForCollection,
out BuildingSerializer buildingSerializer)
{
buildingSerializer = null;
if (examineForCollection &&
propertyType.IsGenericType &&
propertyType.GetGenericTypeDefinition() == typeof(ICollection<>))
{
Type underlyingType = propertyType.GetGenericArguments()[0];
SerializerWithWireType underlyingSerializer = CreateBuildingSerializer(
underlyingType, attribute, false).Serializer;
{
buildingSerializer = new BuildingSerializer(attribute.Packed
? (SerializerWithWireType)new PackedRepeatedSerializer(underlyingSerializer)
: new RepeatedSerializer(attribute.FieldNumber, underlyingSerializer),
new RepeatedValueBuilder(underlyingType, !attribute.Packed));
return true;
}
}
return false;
}
private static bool TrySerializeAsNullable(Type propertyType,
ProtobufFieldAttribute attribute, out BuildingSerializer buildingSerializer)
{
buildingSerializer = null;
if (propertyType.IsGenericType &&
propertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
{
Type underlyingType = propertyType.GetGenericArguments()[0];
SerializerWithWireType underlyingSerializer = CreateBuildingSerializer(
underlyingType, attribute, false).Serializer;
buildingSerializer = new BuildingSerializer(
underlyingSerializer, new NullableValueBuilder(underlyingType));
return true;
}
return false;
}
private static BuildingSerializer CreateBuildingSerializer(Type propertyType,
ProtobufFieldAttribute attribute, bool examineForCollection)
{
BuildingSerializer buildingSerializer;
if (TrySerializeAsPrimitiveValue(propertyType, attribute, out buildingSerializer))
{
return buildingSerializer;
}
if (TrySerializeAsEnum(propertyType, out buildingSerializer))
{
return buildingSerializer;
}
if (TrySerializeAsNullable(propertyType, attribute, out buildingSerializer))
{
return buildingSerializer;
}
if (TrySerializeAsCollection(propertyType, attribute, examineForCollection,
out buildingSerializer))
{
return buildingSerializer;
}
return new BuildingSerializer(new EmbeddedMessageSerializer(
CreateSerializer(propertyType)),
new SingleValueBuilder(propertyType));
}