repl tab completion in 2.11

[Lukas Rytz]

I have issues with tab-completion in the 2.11-repl, can others reproduce that?

Lukas

2.10 works fine:

lucmac:~ luc$ scala10

Welcome to Scala version 2.10.3 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_65).

Type in expressions to have them evaluated.

Type :help for more information.

scala> :power

** Power User mode enabled - BEEP WHIR GYVE **

** :phase has been set to 'typer'.          **

** scala.tools.nsc._ has been imported      **

** global._, definitions._ also imported    **

** Try  :help, :vals, power.<tab>           **

scala> repl.

LoopCommand             Result                  addClasspath            addReplay               addedClasspath          

addedClasspath_=        asInstanceOf            asyncEcho               chooseReader            closeInterpreter        

command                 commands                createInterpreter       echoCommandMessage      enablePowerMode         

helpCommand             history                 historyCommand          in                      in_=                    

interpretAllFrom        interpretStartingWith   interpreter             interpreter_=           intp                    

intp_=                  isAsync                 isInstanceOf            loadCommand             loadFiles               

loop                    main                    pasteCommand            power                   powerCmd                

powerCommands           printWelcome            process                 prompt                  replay                  

replayCommandStack      replayCommandStack_=    replayCommands          replayQuestionMessage   reset                   

resetCommand            savingReader            savingReplayStack       searchHistory           setPrompt               

settings                settings_=              shCommand               stabilizeIMain          standardCommands        

toString                verbosity               withFile                

2.11 i get nothing

lucmac:~ luc$ scala11

Welcome to Scala version 2.11.0 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_65).

Type in expressions to have them evaluated.

Type :help for more information.

scala> :power

** Power User mode enabled - BEEP WHIR GYVE **

** :phase has been set to 'typer'.          **

** scala.tools.nsc._ has been imported      **

** global._, definitions._ also imported    **

** Try  :help, :vals, power.<tab>           **

scala> repl.

[Rodrigo Cano]

Yes,  same here. Also, when tab completion is requested it freezes for some seconds.

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[Som Snytt]

I think power mode member completion on identifiers has always been broken on 2.11.

The banner says to try `power.<tab>` and that never worked for me.  I considered editing the banner.

Other kinds of completion still work, like imports

scala> import scala.concurrent
import scala.concurrent

scala> concur<tab>rent

There are a few related issues I looked at; you can pile on.

Maybe it's because of

scala> 1
res0: Int = 1

scala> $intp runtimeClassAndTypeOfTerm "res0"
scala.ScalaReflectionException: value res0 is not a class
  at scala.reflect.api.Symbols$SymbolApi$class.asClass(Symbols.scala:272)
  at scala.reflect.internal.Symbols$SymbolContextApiImpl.asClass(Symbols.scala:82)
  at scala.tools.nsc.interpreter.IMain.classOfTerm(IMain.scala:1044)
  at scala.tools.nsc.interpreter.IMain.runtimeClassAndTypeOfTerm(IMain.scala:1077)
  ... 32 elided