I guess this has to do with Type erasure but I can...

# announcements

[tjohnn]

I guess this has to do with Type erasure but I can't get a solution, I want to have a centralized function for firebase callback, so I have something like this:

fun <T> dataAsFlow(){
    //ValueEventListener impl start
    val type= object : GenericTypeIndicator<List<T>>() {}
    val result = dataSnapshot.getValue(type)
    // emit result
    //ValueEventListener impl end
}

The problem is data is getting deserialized into List<HashMap<String, String>> instead of List<T>. It works well if I am using the real type, say, e.g List<Category> instead of List<T>

[tseisel]

What JSON library do you use ?

[tjohnn]

None, firebase sdk comes with it’s own inner deserializer

[Dico]

Make the function inline and the type T reified

[tjohnn]

@Dico yes I tried that earlier but there was no luck

[Dico]

Then I think it's because of a bug with reified types.

[Dico]

https://youtrack.jetbrains.com/issue/KT-22798

[Dico]

Might be this one

[tjohnn]

Ha okay thanks.. I’ll have to be duplicating code for now

[Dico]

There might be a workaround

[Dico]

But it's bit difficult to explain on the phone

[Dico]

Ill try.
You can try using a KType parameter, which you pass typeInfo<T>() into.
Then you do a deep conversion from that to some other representation which your library might have.

[tjohnn]

Thanks I’ll try that out