MACRO PARADISE
Eugene Burmako
Macro annotations are only available with the macro paradise plugin (in Scala 2.10.x, 2.11.x and 2.12.x alike). Their inclusion in official Scala might happen in Scala 2.13, but there is no certainty about it yet. Follow the instructions at the “Macro Paradise” page to download and use our compiler plugin.
This is a companion discussion topic for the original entry at http://docs.scala-lang.org//overviews/macros/annotations