Issues while migrating a project from Kapt to ksp when using Generics `Entity` for Room DB

[dennymat]

Hi there,

I am facing an issue when migrating a kapt Room DB project to ksp.

Project uses Generics for Entity. Compilation fails as KSP does not recognize generic type correctly.

Here is the link to sample github project.

Branches:

main : This uses KAPT processor. No issues compiling

dennym/migrate-to-ksp: This attempts a migration to KSP processor. Compilation fails for using generic types. This can be seen in the compiled DAO impl file.

Library versions:

kotlin = "2.2.21"
ksp = "2.2.21-2.0.4"
coreKtx = "1.17.0"
room = "2.8.3"

[dennymat]

Just want to check if there is any update on this. It appears KSP is lacking support for function level Generic types. It is possible to fix my sample project by defining generics type at the class level.

But we still need support for function level generics type support as well. Any plans for this in the future?