Scala example source code file (macroImpl.scala)

This example Scala source code file (macroImpl.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

any, macro, reflection

The macroImpl.scala Scala example source code

package scala.reflect.macros
package internal

/** Links macro definitions with their implementation.
 *  This is necessary to preserve macro def -> macro impl links between compilation runs.
 *
 *  More precisely, after typechecking right-hand side of a macro def
 *  `typedMacroBody` slaps `macroImpl` annotation onto the macro def
 *  with the result of typechecking as a sole parameter.
 *
 *  As an unfortunate consequence, this annotation must be defined in scala-library.jar,
 *  because anyone (even those programmers who compile their programs with only scala-library on classpath)
 *  must be able to define macros.
 *
 *  To lessen the weirdness we define this annotation as `private[scala]`.
 *  It will not prevent pickling, but it will prevent application developers (and scaladocs) from seeing the annotation.
 */
private[scala] class macroImpl(val referenceToMacroImpl: Any) extends scala.annotation.StaticAnnotation