Scala example source code file (ISettings.scala)

This example Scala source code file (ISettings.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

boolean, boolean, disabled, disabled, enabled, imain, isettings, isettings, list, map, map

The Scala ISettings.scala source code

/* NSC -- new Scala compiler
 * Copyright 2005-2011 LAMP/EPFL
 * @author Alexander Spoon
 */

package scala.tools.nsc
package interpreter

/** Settings for the interpreter
 *
 * @version 1.0
 * @author Lex Spoon, 2007/3/24
 **/
class ISettings(intp: IMain) {
  /** A list of paths where :load should look */
  var loadPath = List(".")
  
  /** Set this to true to see repl machinery under -Yrich-exceptions.
   */
  var showInternalStackTraces = false

  /** The maximum length of toString to use when printing the result
   *  of an evaluation.  0 means no maximum.  If a printout requires
   *  more than this number of characters, then the printout is
   *  truncated.
   */
  var maxPrintString = 800
  
  /** The maximum number of completion candidates to print for tab
   *  completion without requiring confirmation.
   */
  var maxAutoprintCompletion = 250
  
  /** String unwrapping can be disabled if it is causing issues.
   *  Settings this to false means you will see Strings like "$iw.$iw.".
   */
  var unwrapStrings = true
  
  def deprecation_=(x: Boolean) = {
    val old = intp.settings.deprecation.value
    intp.settings.deprecation.value = x
    if (!old && x) println("Enabled -deprecation output.")
    else if (old && !x) println("Disabled -deprecation output.")
  }
  def deprecation: Boolean = intp.settings.deprecation.value
  
  def allSettings = Map(
    "maxPrintString" -> maxPrintString,
    "maxAutoprintCompletion" -> maxAutoprintCompletion,
    "unwrapStrings" -> unwrapStrings,
    "deprecation" -> deprecation
  )
  
  private def allSettingsString =
    allSettings.toList sortBy (_._1) map { case (k, v) => "  " + k + " = " + v + "\n" } mkString
    
  override def toString = """
    | ISettings {
    | %s
    | }""".stripMargin.format(allSettingsString)
}