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scala>implicitcaseclassFoo(i: Int)
error:whilecompiling: <console>
current phase: typer
library version: version 2.10.0-20120413-153403-c26ef91048
compiler version: version 2.10.0-20120413-153403-c26ef91048
reconstructed args:
uncaught exception during compilation: java.util.NoSuchElementException
java.util.NoSuchElementException: key not found: value Foo
at scala.collection.MapLike$class.default(MapLike.scala:228)
at scala.collection.AbstractMap.default(Map.scala:57)
at scala.collection.mutable.HashMap.apply(HashMap.scala:63)
at scala.tools.nsc.typechecker.MethodSynthesis$MethodSynth$class.addDerivedTrees(MethodSynthesis.scala:234)
at scala.tools.nsc.typechecker.Namers$Namer.addDerivedTrees(Namers.scala:76)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$31.apply(Typers.scala:1658)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$31.apply(Typers.scala:1658)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$rewrappingWrapperTrees$1.apply(Typers.scala:1596)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$rewrappingWrapperTrees$1.apply(Typers.scala:1593)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:247)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:247)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
at scala.collection.immutable.List.foreach(List.scala:77)
at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:247)
at scala.collection.AbstractTraversable.flatMap(Traversable.scala:112)
at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1658)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer.typerReportAnyContextErrors(Typers.scala:501)
at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1567)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4462)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4812)
at scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:2455)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.collection.immutable.List.loop$1(List.scala:163)
at scala.collection.immutable.List.mapConserve(List.scala:179)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.withSavedContext(Typers.scala:510)
at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1660)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer.typerReportAnyContextErrors(Typers.scala:501)
at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1567)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4462)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4812)
at scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:2455)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.collection.immutable.List.loop$1(List.scala:163)
at scala.collection.immutable.List.mapConserve(List.scala:179)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.withSavedContext(Typers.scala:510)
at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1660)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer.typerReportAnyContextErrors(Typers.scala:501)
at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1567)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4462)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4812)
at scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:2455)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.collection.immutable.List.loop$1(List.scala:163)
at scala.collection.immutable.List.mapConserve(List.scala:179)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.withSavedContext(Typers.scala:510)
at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1660)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$30.apply(Typers.scala:1568)
at scala.tools.nsc.typechecker.Typers$Typer.typerReportAnyContextErrors(Typers.scala:501)
at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1567)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4462)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4812)
at scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:2455)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49$$anonfun$50.apply(Typers.scala:2551)
at scala.collection.immutable.List.loop$1(List.scala:163)
at scala.collection.immutable.List.mapConserve(List.scala:179)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2551)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$49.apply(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.withSavedContext(Typers.scala:510)
at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2550)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4455)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4812)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4870)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.apply(Analyzer.scala:96)
at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:423)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:88)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:88)
at scala.collection.Iterator$class.foreach(Iterator.scala:697)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1124)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.run(Analyzer.scala:88)
at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1305)
at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1278)
at scala.tools.nsc.Global$Run.compileSources(Global.scala:1272)
at scala.tools.nsc.interpreter.IMain.compileSourcesKeepingRun(IMain.scala:455)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compileAndSaveRun(IMain.scala:837)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compile(IMain.scala:795)
at scala.tools.nsc.interpreter.IMain$Request.compile(IMain.scala:968)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:622)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:589)
at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:777)
at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:831)
at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:734)
at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:598)
at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:605)
at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:608)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:911)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:873)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:873)
at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:155)
at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:873)
at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:79)
at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:92)
at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:101)
at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
The text was updated successfully, but these errors were encountered:
@szeiger said:
A case class is not needed. The combination of implicit class + extends AnyVal (which would be illegal for a case class) also causes this error:
Fix for implicit class / value class collision.
New this week, on SCALA.
Implicit class: "Spin me up an implicit method with my name."
Value class: "I need a companion object, pronto."
Narrator: "All was well with this arrangement... UNTIL."
What happens when these two wacky SIPs get together in the very
same class? You'll laugh until, eventually, you cry! Weeknights
at 9:30pm, only on SCALA.
Closes SI-5667.
The text was updated successfully, but these errors were encountered: