BindingContext.get(TYPE, typeReference) returns null

Support
1

Hi, so I have this utility function:

fun KtClassOrObject.findSuperType(
    bindingContext: BindingContext,
    fqName: FqName
): KtSuperTypeListEntry? {
    return this.superTypeListEntries.firstOrNull { entry ->
        bindingContext.get(
            BindingContext.TYPE,
            entry.typeReference
        )?.constructor?.declarationDescriptor?.fqNameSafe == fqName
    }
}

It’s called inside an AnalysisHandler’s analysisCompleted.

The problem is that bindingContext#get always returns null, despite entry.typeReference not being null.

It looks like it might be a Kotlin bug to me but I’m not sure … I’m using Kotlin 1.4.32

1 Like
2

Based on my short search for KtClassOrObject I’m guessing you are working or at least using the kotlin compiler as a library.
I did not spend much time looking thorugh it (only browsed the code a bit on github). The first thing I would check is that your instance of BindingContext isn’t BindingContext.EMPTY. I couldn’t find another class that implements BindingContext but there probably is one.
Not sure how much more help I can give you without any real context. I’m guessing you know that you are using an internal and undocumented API . I don’t think there are many people who know the kotlin compiler here. I suggest you ask in the kotlin slack(Kotlin Slack Sign-up). IIRC there are a number of groups there with people who should be able to help you.

1 Like
3

I’m guessing you know that you are using an internal and undocumented API

Yup, it’s part of a compiler plugin.

I don’t think there are many people who know the kotlin compiler here.

I was under the impression that the Kotlin team was involved with answering the questions here, I took the question to the Kotlin Slack and got an answer there.

Thank you.

4

They are but it generaly takes some time for them to answer here. They are far more active on slack.

1 Like
5

did you get the answer? How did you fix it?