I have a function which constructs a map by reflection from an object literal (the purpose is to make porting some JavaScript code easier). The function works fine, but I have found a case in which the reflections lists variables from an enclosing scope between members:
def mapFromObject[T](m: Any): Map[String, T] = {
import scala.reflect.runtime.currentMirror
def listMembers(m: Any) = {
import scala.reflect.runtime.currentMirror
val anyMirror = currentMirror.reflect(m)
val items = for {
symbol <- currentMirror.classSymbol(m.getClass).toType.members
if symbol.isTerm && !symbol.isMethod && !symbol.isModule
} yield {
val field = anyMirror.reflectField(symbol.asTerm)
symbol.name.decodedName.toString
}
items
}
def convertLiteral() = {
val par_some = ""
val literal = new {
var item = new {}
var item2 = new {
var value = par_some
}
}
println(listMembers(literal))
}
convertLiteral()
}
I expect to get result item, item2, but I get par_some$1, item2, item instead.
Why is par_some$1 listed as a member of the class?
How can I check for such member, so that I can ignore it? I have tried various methods of Symbol, including isSynthetic and isImplementationArtifact, but nothing I have tried seems to be different from normal members.
Scastie repro: https://scastie.scala-lang.org/uiv4DBIERIKnZaiViZ0Aaw
