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Compiler for the Scala Programming Language

There is a newer version: 2.11.2

package scala.reflect
package macros

trait FrontEnds extends scala.reflect.api.FrontEnds {
  self: Context =>

  import mirror._

  type Position = universe.Position

  /** Exposes means to control the compiler UI */
  def frontEnd: FrontEnd
  def setFrontEnd(frontEnd: FrontEnd): this.type
  def withFrontEnd[T](frontEnd: FrontEnd)(op: => T): T

  /** For sending a message which should not be labeled as a warning/error,
   *  but also shouldn't require -verbose to be visible.
   *  Use ``enclosingPosition'' if you're in doubt what position to pass to ``pos''.
   */
  def echo(pos: Position, msg: String): Unit

  /** Informational messages, suppressed unless -verbose or force=true.
   *  Use ``enclosingPosition'' if you're in doubt what position to pass to ``pos''.
   */
  def info(pos: Position, msg: String, force: Boolean): Unit

  /** Warnings and errors.
   *  Use ``enclosingPosition'' if you're in doubt what position to pass to ``pos''.
   */
  def hasWarnings: Boolean
  def hasErrors: Boolean
  def warning(pos: Position, msg: String): Unit
  def error(pos: Position, msg: String): Unit

  /** Abruptly terminates current macro expansion leaving a note about what happened.
   *  Use ``enclosingPosition'' if you're in doubt what position to pass to ``pos''.
   */
  def abort(pos: Position, msg: String): Nothing

  /** Drops into interactive mode if supported by the compiler UI */
  def interactive(): Unit
}