Scala example source code file (StandardScalaSettings.scala)

This example Scala source code file (StandardScalaSettings.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

booleansetting, choicesetting, compiler, emit, list, nsc, override, pathsetting, print, set, specify, utilize

The StandardScalaSettings.scala Scala example source code

/* NSC -- new Scala compiler
 * Copyright 2005-2013 LAMP/EPFL
 * @author  Paul Phillips
 */

package scala.tools.nsc
package settings

import scala.tools.util.PathResolver.Defaults

/** Settings which aren't behind a -X, -Y, or -P option.
 *  When possible, the val and the option have identical names.
 *  The abstract settings are commented as to why they are as yet
 *  implemented in MutableSettings rather than mutation-generically.
 */
trait StandardScalaSettings {
  self: AbsScalaSettings =>

  /** Path related settings.
   */
  val bootclasspath =     PathSetting ("-bootclasspath", "Override location of bootstrap class files.", Defaults.scalaBootClassPath)
  val classpath:          PathSetting // is mutated directly in various places (thus inspiring this very effort)
  val d:                OutputSetting // depends on mutable OutputDirs class
  val extdirs =           PathSetting ("-extdirs", "Override location of installed extensions.", Defaults.scalaExtDirs)
  val javabootclasspath = PathSetting ("-javabootclasspath", "Override java boot classpath.", Defaults.javaBootClassPath)
  val javaextdirs =       PathSetting ("-javaextdirs", "Override java extdirs classpath.", Defaults.javaExtDirs)
  val sourcepath =        PathSetting ("-sourcepath", "Specify location(s) of source files.", "") // Defaults.scalaSourcePath

  /** Other settings.
   */
  val dependencyfile =  StringSetting ("-dependencyfile", "file", "Set dependency tracking file.", ".scala_dependencies")
  val deprecation =    BooleanSetting ("-deprecation", "Emit warning and location for usages of deprecated APIs.")
  val encoding =        StringSetting ("-encoding", "encoding", "Specify character encoding used by source files.", Properties.sourceEncoding)
  val explaintypes =   BooleanSetting ("-explaintypes", "Explain type errors in more detail.")
  val feature =        BooleanSetting ("-feature", "Emit warning and location for usages of features that should be imported explicitly.")
  val g =               ChoiceSetting ("-g", "level", "Set level of generated debugging info.", List("none", "source", "line", "vars", "notailcalls"), "vars")
  val help =           BooleanSetting ("-help", "Print a synopsis of standard options")
  val nowarn =         BooleanSetting ("-nowarn", "Generate no warnings.")
  val optimise:        BooleanSetting // depends on post hook which mutates other settings
  val print =          BooleanSetting ("-print", "Print program with Scala-specific features removed.")
  val target =          ChoiceSetting ("-target", "target", "Target platform for object files. All JVM 1.5 targets are deprecated.",
                          List("jvm-1.5", "jvm-1.6", "jvm-1.7"), "jvm-1.6")
  val unchecked =      BooleanSetting ("-unchecked", "Enable additional warnings where generated code depends on assumptions.")
  val uniqid =         BooleanSetting ("-uniqid", "Uniquely tag all identifiers in debugging output.")
  val usejavacp =      BooleanSetting ("-usejavacp", "Utilize the java.class.path in classpath resolution.")
  val usemanifestcp =  BooleanSetting ("-usemanifestcp", "Utilize the manifest in classpath resolution.")
  val verbose =        BooleanSetting ("-verbose", "Output messages about what the compiler is doing.")
  val version =        BooleanSetting ("-version", "Print product version and exit.")
}