EXPERIMENTAL
Eugene Burmako
Extractor macros are a feature of Scala 2.11.x and Scala 2.12.x, enabled by name-based extractors introduced by Paul Phillips in Scala 2.11.0-M5. Extractor macros are not supported in Scala 2.10.x. They are also not supported in macro paradise for Scala 2.10.x.
This is a companion discussion topic for the original entry at http://docs.scala-lang.org//overviews/macros/extractors