This was the bug I was talking about: ```data clas...

# pattern-matching

[mattmoore]

This was the bug I was talking about:

data class Person(val firstName: String, val lastName: String)

fun main(args: Array<String>) {
  val person = Person("Matt", "Moore")
  val result = when (person) {
    Person(capturedFirstName, _) -> capturedFirstName
    else -> "Not matched"
  }

  println(result)
}

Yields:

e: java.lang.ClassCastException: org.jetbrains.kotlin.descriptors.impl.LocalVariableDescriptor cannot be cast to org.jetbrains.kotlin.descriptors.PropertyDescriptor

If I pull val person... out of main, then it works:

data class Person(val firstName: String, val lastName: String)
val person = Person("Matt", "Moore")

fun main(args: Array<String>) {
  val result = when (person) {
    Person(capturedFirstName, _) -> capturedFirstName
    else -> "Not matched"
  }

  println(result)
}

I'm finally able to get back to this now.