Splain breaks Scaladoc about splain

[tek]

yeah, stuff like this is happening a lot due to the hacky way splain ties into the compiler. the workaround is to merge it into the compiler, so let's hope it happens soon: scala/scala#7785

[cunningdefenestrator]

That's unfortunate. If this is a wontfix, maybe it's worth a note in the documentation that this is a known issue? It was quite baffling when I first encountered this.

[tek]

sure thing!

[tek]

fixed by merge of scala/scala#7785

[steinybot]

@tek When you say fixed do you mean that this should no longer happen when using splain or do you mean that now that it is in scalac we don't need to use splain?

I'd like to still use the experimental features of splain such as diverging implicits and I'm getting this error:

sbt:stable-slinky> doc
[info] Main Scala API documentation to /Users/jason/src/goodcover/stable-slinky/target/scala-2.13/api...
[error] stack trace is suppressed; run last Compile / doc for the full output
[error] (Compile / doc) java.lang.reflect.InvocationTargetException
[error] Total time: 1 s, completed 9/07/2022, 12:35:15 pm
sbt:stable-slinky> last
[debug] > Exec(doc, Some(83a20cc8-0007-40c9-a7b3-2abb5870d5f6), Some(CommandSource(console0)))
[debug] Evaluating tasks: Compile / doc
[debug] Running task... Cancel: Signal, check cycles: false, forcegc: true
[info] Main Scala API documentation to /Users/jason/src/goodcover/stable-slinky/target/scala-2.13/api...
[debug] Forcing garbage collection...
[error] java.lang.NullPointerException: Cannot invoke "scala.tools.nsc.typechecker.Analyzer.packageObjects()" because "old" is null
[error] 	at splain.SplainAnalyzerShim.migrateFrom(SplainAnalyzerShim.scala:11)
[error] 	at splain.SplainAnalyzerShim.migrateFrom$(SplainAnalyzerShim.scala:8)
[error] 	at splain.SplainAnalyzer.migrateFrom(SplainAnalyzer.scala:5)
[error] 	at splain.SplainPlugin.<init>(SplainPlugin.scala:41)
[error] 	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[error] 	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
[error] 	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[error] 	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
[error] 	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
[error] 	at scala.tools.nsc.plugins.Plugin$.instantiate(Plugin.scala:178)
[error] 	at scala.tools.nsc.plugins.Plugins.$anonfun$loadRoughPluginsList$10(Plugins.scala:56)
[error] 	at scala.tools.nsc.plugins.Plugins.loadRoughPluginsList(Plugins.scala:56)
[error] 	at scala.tools.nsc.plugins.Plugins.loadRoughPluginsList$(Plugins.scala:36)
[error] 	at scala.tools.nsc.Global.loadRoughPluginsList(Global.scala:45)
[error] 	at scala.tools.nsc.Global.roughPluginsList$lzycompute(Global.scala:45)
[error] 	at scala.tools.nsc.Global.roughPluginsList(Global.scala:45)
[error] 	at scala.tools.nsc.plugins.Plugins.loadPlugins(Plugins.scala:140)
[error] 	at scala.tools.nsc.plugins.Plugins.loadPlugins$(Plugins.scala:115)
[error] 	at scala.tools.nsc.Global.loadPlugins(Global.scala:45)
[error] 	at scala.tools.nsc.Global.plugins$lzycompute(Global.scala:45)
[error] 	at scala.tools.nsc.Global.plugins(Global.scala:45)
[error] 	at scala.tools.nsc.plugins.Plugins.computePluginPhases(Plugins.scala:167)
[error] 	at scala.tools.nsc.plugins.Plugins.computePluginPhases$(Plugins.scala:166)
[error] 	at scala.tools.nsc.Global.computePluginPhases(Global.scala:45)
[error] 	at scala.tools.nsc.Global.computePhaseDescriptors(Global.scala:729)
[error] 	at scala.tools.nsc.Global.phaseDescriptors$lzycompute(Global.scala:734)
[error] 	at scala.tools.nsc.Global.phaseDescriptors(Global.scala:734)
[error] 	at scala.tools.nsc.Global$Run.<init>(Global.scala:1248)
[error] 	at scala.tools.nsc.doc.DocFactory.makeUniverse(DocFactory.scala:54)
[error] 	at scala.tools.nsc.doc.DocFactory.generate$1(DocFactory.scala:135)
[error] 	at scala.tools.nsc.doc.DocFactory.document(DocFactory.scala:142)
[error] 	at xsbt.Runner.run(ScaladocBridge.scala:43)
[error] 	at xsbt.ScaladocBridge.run(ScaladocBridge.scala:21)
[error] 	at sbt.internal.inc.AnalyzingCompiler.doc(AnalyzingCompiler.scala:154)
[error] 	at sbt.internal.inc.AnalyzingCompiler.doc(AnalyzingCompiler.scala:133)
[error] 	at sbt.Doc$.$anonfun$scaladoc$1(Doc.scala:52)
[error] 	at sbt.Doc$.$anonfun$scaladoc$1$adapted(Doc.scala:40)
[error] 	at sbt.RawCompileLike$.$anonfun$prepare$1(RawCompileLike.scala:79)
[error] 	at sbt.RawCompileLike$.$anonfun$prepare$1$adapted(RawCompileLike.scala:72)
[error] 	at sbt.RawCompileLike$.$anonfun$cached$4(RawCompileLike.scala:63)
[error] 	at sbt.RawCompileLike$.$anonfun$cached$4$adapted(RawCompileLike.scala:61)
[error] 	at sbt.util.Tracked$.$anonfun$inputChangedW$1(Tracked.scala:219)
[error] 	at sbt.RawCompileLike$.$anonfun$cached$1(RawCompileLike.scala:68)
[error] 	at sbt.RawCompileLike$.$anonfun$cached$1$adapted(RawCompileLike.scala:52)
[error] 	at sbt.Defaults$.$anonfun$docTaskSettings$4(Defaults.scala:2159)
[error] 	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] 	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] 	at sbt.std.Transform$$anon$4.work(Transform.scala:68)
[error] 	at sbt.Execute.$anonfun$submit$2(Execute.scala:282)
[error] 	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
[error] 	at sbt.Execute.work(Execute.scala:291)
[error] 	at sbt.Execute.$anonfun$submit$1(Execute.scala:282)
[error] 	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
[error] 	at sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
[error] 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] 	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
[error] 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[error] 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[error] 	at java.base/java.lang.Thread.run(Thread.java:833)
[error] (Compile / doc) java.lang.reflect.InvocationTargetException
[error] Total time: 1 s, completed 9/07/2022, 12:35:15 pm
[debug] > Exec(shell, None, None)