Declare known baseType(s) instead of subTypes #175
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…of the assemblies
Caching should now work as expected
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Added
KnownBaseTypeAttributeandKnownBaseTypeWithPropertyAttributeattributes, which are basically the inversion ofKnownSubTypeAttributeandKnownSubTypeWithPropertyAttribute.Basically, the problem we were facing is we've got base classes which reside in nuget packages/other projects.
Currently, you needed to 1) have access to those base classes to add all needed attributes and thus 2) your derived classes needed to exist in the same project as their base class.
With these changes, we can mark our base class as
[JsonConverter(typeof(JsonSubtypes), "SomePropertyName")].Then, any other project can create derived classes and mark them via
[JsonSubtypes.KnownBaseTypeWithProperty(typeof(SomeBaseClass), "SomePropertyValue")].It uses the same caching method as the GetAttributes function, so the added performance overhead would be minimal.
You'd only need to scan all assemblies once to find those attributes.