Power mode seems to have gotten broken

[blast-hardcheese]

• I've read the CONTRIBUTING guidelines

steps

Launch sbt
Run console
Type :power

problem

scala> :power
<console>:1: error: identifier expected but $XMLSTART$< found.
       import <none>._
              ^
<console>:12: error: not found: value intp
       import scala.tools.nsc._, scala.collection.JavaConverters._, intp.global.{ error => _, _ }, definitions.{ getClass => _, _ }, power.rutil._, replImplicits._, treedsl.CODE._
                                                                    ^
<console>:12: error: not found: value definitions
       import scala.tools.nsc._, scala.collection.JavaConverters._, intp.global.{ error => _, _ }, definitions.{ getClass => _, _ }, power.rutil._, replImplicits._, treedsl.CODE._
                                                                                                   ^
<console>:12: error: not found: value power
       import scala.tools.nsc._, scala.collection.JavaConverters._, intp.global.{ error => _, _ }, definitions.{ getClass => _, _ }, power.rutil._, replImplicits._, treedsl.CODE._
                                                                                                                                     ^
<console>:12: error: not found: value replImplicits
       import scala.tools.nsc._, scala.collection.JavaConverters._, intp.global.{ error => _, _ }, definitions.{ getClass => _, _ }, power.rutil._, replImplicits._, treedsl.CODE._
                                                                                                                                                    ^
<console>:12: error: not found: value treedsl
       import scala.tools.nsc._, scala.collection.JavaConverters._, intp.global.{ error => _, _ }, definitions.{ getClass => _, _ }, power.rutil._, replImplicits._, treedsl.CODE._
                                                                                                                                                                     ^
Power mode enabled. :phase is at typer.
import scala.tools.nsc._, intp.global._, definitions._
Try :help or completions for vals._ and power._

expectation

scala> :power
Power mode enabled. :phase is at typer.
import scala.tools.nsc._, intp.global._, definitions._
Try :help or completions for vals._ and power._

notes

I'd like to bisect between 1.1.1 and 1.1.2, though I can't do it at this point. I just wanted to raise awareness, as this breaks https://github.com/marconilanna/REPLesent at the sbt console

sbt version: 1.1.2+

[eed3si9n]

@blast-hardcheese Thanks for the report.

[blast-hardcheese]

@eed3si9n No worries! I'll give the bisect a shot ASAP. It's clearly not bothering anyone else, so I guess no rush 😄

[nkgm]

Any updates on this one? Would be really nice to be able to use :power in sbt console.

[blast-hardcheese]

I tried to bisect SBT to figure out what broke, but I discovered that the problem was actually in one of the dependencies, and I didn't try too hard to get the rest of the SBT build environment working, as I figured I wouldn't need :power mode this year. I only use it for REPLesent, which is what I use to do slides from inside the Scala REPL.

I can't give any more insight than that, but am interested in this getting fixed as well, at some point this will become a serious problem for me.

[nkgm]

Thanks for the reply @blast-hardcheese. I am a little bit surprised that more people aren't smitten by this. Tools like :power and :javap are the reason why I'm using Scala REPL over Ammonite, and sbt console is pretty much the only viable way of running the REPL with dependencies in the classpath.

[ivan-awake]

Confirm, it's still broken on on 2.12

[info] Starting scala interpreter...
Welcome to Scala 2.12.10 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_241).
Type in expressions for evaluation. Or try :help.

scala> :power
<console>:1: error: identifier expected but $XMLSTART$< found.
       import <none>._
...

[ivan-awake]

@blast-hardcheese is there another way to set vals.isettings.maxPrintString?

[joshuaconner]

@ivan-awake i created a file ~/.sbt/1.0/plugins/console.sbt with the following content and it seems to work:

initialize ~= (_ => sys.props("scala.repl.maxprintstring") = "10000" )

(adapted from this SO comment by @SethTisue - thanks Seth!)

[vegerot]

Still broken for me

❯ sbt console
[info] Loading global plugins from /Users/maxcoplan/.sbt/1.0/plugins
[info] Loading settings for project example-build from plugins.sbt,buildSettings.sbt ...
[info] Loading project definition from /Users/maxcoplan/workspace/scala_coursera/example/project
[info] Loading settings for project example from assignment.sbt,build.sbt ...
[info] Set current project to progfun1-example (in build file:/Users/maxcoplan/workspace/scala_coursera/example/)
[info] Starting scala interpreter...
Welcome to Scala 2.13.0 (OpenJDK 64-Bit Server VM, Java 11.0.10).
Type in expressions for evaluation. Or try :help.

scala> :power
              ^
       error: identifier expected but $XMLSTART$< found.
Power mode enabled. :phase is at typer.
import scala.tools.nsc._, intp.global._, definitions._
Try :help or completions for vals._ and power._

scala> 1+1

       }}
         ^
<synthetic>:11: error: input ended while parsing XML

(To diagnose errors in synthetic code, try adding `// show` to the end of your input.)

scala> ;

scala> 1+1

       }}
         ^
<synthetic>:11: error: input ended while parsing XML

(To diagnose errors in synthetic code, try adding `// show` to the end of your input.)

scala>

[mvillafuertem]

Is there an update on this? I have the same errors with the latest sbt version. Thanks

[info] welcome to sbt 1.6.2 (Oracle Corporation Java 1.8.0_202)
...
[info] Starting scala interpreter...
Welcome to Scala 2.13.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_202).
Type in expressions for evaluation. Or try :help.

scala> :power
              ^
       error: identifier expected but $XMLSTART$< found.
Power mode enabled. :phase is at typer.
import scala.tools.nsc._, intp.global._, definitions._
Try :help or completions for vals._ and power._

scala> val a = 1

       }}
         ^
<synthetic>:11: error: input ended while parsing XML

(To diagnose errors in synthetic code, try adding `// show` to the end of your input.)