Kotlin 2.0.0 question: This code newly generates a...

# getting-started

[David Kubecka]

Kotlin 2.0.0 question: This code newly generates a warning Kotlin: Captured type in mutable property reference. Usages of 'set' may lead to cast exceptions.

interface IdHolder<T> {
    var id: T
}

fun main() {
    println(IdHolder<*>::id.name)
}

Obviously, the warning is not relevant for this particular situation since I'm not holding a reference to the mutable id property. So my question is how to get rid of it. I guess I'm asking about the right argument to @Suppress but don't know how to find it.

[ephemient]

MUTABLE_PROPERTY_WITH_CAPTURED_TYPE

[ephemient]

https://github.com/JetBrains/kotlin/blob/v2.0.0/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrorsDefaultMessages.kt#L1564

[dmitriy.novozhilov]

For compilation you can add -Xrender-internal-diagnostic-names compiler flag, so the compiler will add internal name for each warning and error it reports

In IDE you can inspect diagnostic names with internal mode enabled

[David Kubecka]

Thanks. I wondered at first why that flag doesn't work before realizing that I need to enable the K2 mode!