diff options
Diffstat (limited to 'src/repl/scala/tools/nsc/interpreter/ILoop.scala')
| -rw-r--r-- | src/repl/scala/tools/nsc/interpreter/ILoop.scala | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/src/repl/scala/tools/nsc/interpreter/ILoop.scala b/src/repl/scala/tools/nsc/interpreter/ILoop.scala index a0cc116df8..f934bbe46c 100644 --- a/src/repl/scala/tools/nsc/interpreter/ILoop.scala +++ b/src/repl/scala/tools/nsc/interpreter/ILoop.scala @@ -1,8 +1,7 @@ /* NSC -- new Scala compiler - * Copyright 2005-2013 LAMP/EPFL + * Copyright 2005-2015 LAMP/EPFL * @author Alexander Spoon */ - package scala package tools.nsc package interpreter @@ -819,9 +818,10 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) case _ => } - /** Tries to create a JLineReader, falling back to SimpleReader: - * unless settings or properties are such that it should start - * with SimpleReader. + /** Tries to create a JLineReader, falling back to SimpleReader, + * unless settings or properties are such that it should start with SimpleReader. + * The constructor of the InteractiveReader must take a Completion strategy, + * supplied as a `() => Completion`; the Completion object provides a concrete Completer. */ def chooseReader(settings: Settings): InteractiveReader = { if (settings.Xnojline || Properties.isEmacsShell) SimpleReader() @@ -829,20 +829,25 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) type Completer = () => Completion type ReaderMaker = Completer => InteractiveReader - def instantiate(className: String): ReaderMaker = completer => { - if (settings.debug) Console.println(s"Trying to instantiate a InteractiveReader from $className") + def instantiater(className: String): ReaderMaker = completer => { + if (settings.debug) Console.println(s"Trying to instantiate an InteractiveReader from $className") Class.forName(className).getConstructor(classOf[Completer]). newInstance(completer). asInstanceOf[InteractiveReader] } - def mkReader(maker: ReaderMaker) = - if (settings.noCompletion) maker(() => NoCompletion) - else maker(() => new JLineCompletion(intp)) // JLineCompletion is a misnomer -- it's not tied to jline + def mkReader(maker: ReaderMaker) = maker { () => + settings.completion.value match { + case _ if settings.noCompletion => NoCompletion + case "none" => NoCompletion + case "adhoc" => new JLineCompletion(intp) // JLineCompletion is a misnomer; it's not tied to jline + case "pc" | _ => new PresentationCompilerCompleter(intp) + } + } def internalClass(kind: String) = s"scala.tools.nsc.interpreter.$kind.InteractiveReader" val readerClasses = sys.props.get("scala.repl.reader").toStream ++ Stream(internalClass("jline"), internalClass("jline_embedded")) - val readers = readerClasses map (cls => Try { mkReader(instantiate(cls)) }) + val readers = readerClasses map (cls => Try { mkReader(instantiater(cls)) }) val reader = (readers collect { case Success(reader) => reader } headOption) getOrElse SimpleReader() |