For a more efficient lookup of a companion with the functions of obtaining a serializer, a special annotation is added to the named companions.
Merge-request: KT-MR-11003
Merged-by: Sergey Shanshin <Sergey.Shanshin@jetbrains.com>
These declarations should not be visible to users (and therefore are not added to FIR),
but plugin itself can reference them in already compiled serializable classes,
and therefore they should be available in metadata:
- synthetic deserialization constructor
- static write$Self function
See also:
^KT-55885
of the class used in @UseSerializers: Use methods to receive
full list of supertypes.
K1 supertypes() call returned all supertypes, while
IrClass.supertypes and FirClassSymbol.resolvedSuperTypes return only immediate ones.
This lead to a difference in behavior between K1 and K2, and regression
after plugin backend was rewritten from descriptors to IR.
#KT-55340 Fixed