scala.util.parsing.input.Positional.scala Maven / Gradle / Ivy
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2006-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
package util.parsing.input
/** A trait for objects that have a source position.
*
* @author Martin Odersky, Adriaan Moors
*/
trait Positional {
/** The source position of this object, initially set to undefined. */
var pos: Position = NoPosition
/** If current source position is undefined, update it with given position `newpos`
* @return the object itself
*/
def setPos(newpos: Position): this.type = {
if (pos eq NoPosition) pos = newpos
this
}
}