ILoop Tab Completion - scala

Question

I am creating a very simple extension of scala.tools.nsc.interpreter.ILoop with the intent of adding some additional bindings, but even in the most basic use-case the tab-completion does not seem to work. If I type in code it interprets and works as expected, but I no tab-completion. Is there something specific that needs to be defined in order for tab-completion to be enabled in the interactive interpreter (REPL)?
My use-case is as simple as the following:
val repl = new ILoop
repl.process(new Settings {
usejavacp.value = true
deprecation.value = true
})
Is there something other than ILoop I should be using?

Answer 1

It kind of works for me, modulo version.
$ scalacm myintp.scala && scalam myintp.Test
Welcome to Scala 2.12.0-RC2 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_101).
Type in expressions for evaluation. Or try :help.
scala> 42
res0: Int = 42
scala> 42.
!= < >>> doubleValue isNaN isValidShort shortValue toDouble toShort
% << ^ floatValue isNegInfinity isWhole signum toFloat unary_+
& <= abs floor isPosInfinity longValue to toHexString unary_-
* == byteValue getClass isValidByte max toBinaryString toInt unary_~
+ > ceil intValue isValidChar min toByte toLong underlying
- >= compare isInfinite isValidInt round toChar toOctalString until
/ >> compareTo isInfinity isValidLong self toDegrees toRadians |
scala> 42.s
self shortValue signum synchronized
scala> 42.self
res1: Int = 42
scala> :quit
Source:
$ cat myintp.scala
package myintp
import scala.tools.nsc._
import scala.tools.nsc.interpreter._
/* 2.12 */
object Test extends App {
val ss = new Settings {
usejavacp.value = true
deprecation.value = true
}
def repl = new ILoop {
override def createInterpreter(): Unit = {
super.createInterpreter()
}
}
repl process ss
}
/* 2.11
object Test extends App {
def repl = new ILoop {
override def createInterpreter(): Unit = {
def binder: Unit = intp beQuietDuring {
intp directBind ("foo", "bar")
intp bind ("baz", "boo")
}
super.createInterpreter()
intp initialize binder
}
}
repl process new Settings
}
*/
/* 2.9
object Test extends App {
def repl = new ILoop {
def binder: Unit = intp beQuietDuring {
intp bind ("baz", "boo")
}
override def loop(): Unit = {
binder
super.loop()
}
}
repl process new Settings
}
*/