Hi I have class hierarchy like: ```abstract class BaseClass<TypeParam> abstract class Interme...

# ksp

[Vladimir Tagakov]

Hi I have class hierarchy like:

abstract class BaseClass<TypeParam>

abstract class IntermediateClass<TypeParam> : BaseClass<TypeParam>
@MyAnnotation class MyClass: IntermediateClass<String>


abstract class AnotherIntermediateClass: BaseClass<Int>
@MyAnnotation class AnotherMyClass: AnotherIntermediateClass

All classes having @MyAnnotation are extending BaseClass in one way or another. Can’t figure out how to get the types parametrizing BaseClass for MyClass and AnotherMyClass can someone help me here please?

[Vladimir Tagakov]

In other words: given that some type extends BaseClass I wan’t to know what is the exact value of the type parameter in BaseClass despite of the class hierarchy

[Jiaxiang]

you should be able to get the value of type parameter from KSTypeArgument?

[Vladimir Tagakov]

No, with a code like this:

(myClass.superTypes.first()//returns IntermediateClass<String> (1)
    .resolve() // (2)
    .declaration as KSClassDeclaration)
    .superTypes.first() //returns BaseClass<TypeParam> (3)
    .resolve() 
    .arguments.first()//returns [INVARIANT TypeParam] not a [INVARIANT String]

I can get what you are saying at the (2) but at (3) the information is already gone.

Basically I am looking for the API similar to:
fun KSClassDeclaration.asMemberOfClassHierarchy(containing: KSType): KSType

So I will be able to do something like:

resolver.getClassDeclarationByName("com.BaseClass").asMemberOfClassHierarchy(myClassKSType).arguments //should have KSTypeArgument with [INVARIANT String]