Hey everyone! I am trying to fix this issue. How do we get the function declarations and know if a particular parameter is required not null? I did go through the PSI documentation but couldn't find an appropriate article / example on how to identify if a parameter is required as not null I tried going to the parent declaration by using

parent.context.reference.resolve()

From there on I can get the valueParameters of the function but I am not sure how to check they are nullable or not Any help will be appreciated thanks

IIRC resolve call will return you function descriptor from which you extract parameters as ValueParametrDescriptor This descriptor contains its type in returnType property (or so) from which you can extract nullability of the type

Thanks

No, there is no such documentation for the kotlin compiler The one your linked is about intellij idea

Yes actually I am focusing on plugins right now. So that's why Any tips which I can follow? Right now I am navigating through the codebase and trying to understand the functionality.

But you can check Kdocs for analysis api, AFAIK it more or less documented AA is a new API for interacting with kotlin compiler from ide for a new K2 IDE plugin (and it supports K1 too) https://github.com/JetBrains/kotlin/tree/master/analysis/analysis-api

Got it. Will try that. Thanks @dmitriy.novozhilov