Aladdin - Scala Bugtracking
[#586] project: compiler priority: low category: bug
submitter assigned to status date submitted
Lex Martin _ 2006-05-04 14:57:29.0
subject unexpected tree in Typer.typed1
code 
(scala-analysis code.   I'll post a shorter example if I figure one out....)
what happened 
      [scalac] java.lang.Error: unexpected tree: 
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1615)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedType(Typers.scala:1671)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$70.apply(Typers.scala:1486)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$70.apply(Typers.scala:1486)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1486)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1500)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1651)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.computeType(Typers.scala:1682)
      [scalac] 	at scala.tools.nsc.typechecker.Namers$Namer.liftedTry0$0(Namers.scala:484)
      [scalac] 	at scala.tools.nsc.typechecker.Namers$Namer.scala$tools$nsc$typechecker$Namers$Namer$$typeSig(Na\
mers.scala:461)
      [scalac] 	at scala.tools.nsc.typechecker.Namers$Namer$$anon$0.complete(Namers.scala:310)
      [scalac] 	at scala.tools.nsc.symtab.Symbols$Symbol.info(Symbols.scala:346)
      [scalac] 	at scala.tools.nsc.symtab.Symbols$Symbol.initialize(Symbols.scala:419)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1286)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1651)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$45.apply(Typers.scala:973)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$45.apply(Typers.scala:963)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:963)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:866)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1347)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedArg$0(Typers.scala:1021)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$47.apply(Typers.scala:1025)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$47.apply(Typers.scala:1025)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedArgs$0(Typers.scala:1025)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.tryTypedArgs$0(Typers.scala:1098)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.tryTypedApply$0(Typers.scala:1121)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1509)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1655)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedCase(Typers.scala:882)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$38.apply(Typers.scala:899)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$38.apply(Typers.scala:898)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedCases(Typers.scala:898)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1421)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1651)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$45.apply(Typers.scala:973)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$45.apply(Typers.scala:963)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:963)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:866)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1347)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1625)
      [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1651)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:353)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:966)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$16.apply(Trees.scala:945)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$16.apply(Trees.scala:944)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:943)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1040)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1038)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1038)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:964)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformTemplate(Trees.scala:1026)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$13.apply(Trees.scala:932)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$13.apply(Trees.scala:932)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:931)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1040)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1038)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1038)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:927)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1040)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1038)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1038)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:927)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1040)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1038)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1038)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:927)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1040)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1038)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1038)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:927)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1040)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$25.apply(Trees.scala:1038)
      [scalac] 	at scala.List$.loop$0(List.scala:232)
      [scalac] 	at scala.List$.mapConserve(List.scala:249)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1038)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$12.apply(Trees.scala:928)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1046)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:927)
      [scalac] 	at scala.tools.nsc.matching.TransMatcher$TransMatch.transform(TransMatcher.scala:357)
      [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:1041)
      [scalac] 	at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:22)
      [scalac] 	at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:210)
      [scalac] 	at scala.tools.nsc.Global$GlobalPhase$$anonfun$1.apply(Global.scala:199)
      [scalac] 	at scala.tools.nsc.Global$GlobalPhase$$anonfun$1.apply(Global.scala:199)
      [scalac] 	at scala.Iterator$class.foreach(Iterator.scala:285)
      [scalac] 	at scala.collection.mutable.ListBuffer$$anon$0.foreach(ListBuffer.scala:216)
      [scalac] 	at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:199)
      [scalac] 	at scala.tools.nsc.Global$Run.compileSources(Global.scala:429)
      [scalac] 	at scala.tools.nsc.Global$Run.compile(Global.scala:487)
      [scalac] 	at scala.tools.ant.Scalac.execute(Scalac.scala:469)
      [scalac] 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
      [scalac] 	at org.apache.tools.ant.Task.perform(Task.java:364)
      [scalac] 	at org.apache.tools.ant.Target.execute(Target.java:341)
      [scalac] 	at org.apache.tools.ant.Target.performTasks(Target.java:369)
      [scalac] 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
      [scalac] 	at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
      [scalac] 	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
      [scalac] 	at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecuto\
r.java:32)
      [scalac] 	at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
      [scalac] 	at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:704)
      [scalac] 	at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:455)
      [scalac] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      [scalac] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      [scalac] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      [scalac] 	at java.lang.reflect.Method.invoke(Method.java:585)
      [scalac] 	at org.eclipse.ant.core.AntRunner.run(AntRunner.java:356)
      [scalac] 	at org.eclipse.ant.internal.ui.launchConfigurations.AntLaunchDelegate.runInSameVM(AntLaunchDeleg\
ate.java:234)
      [scalac] 	at org.eclipse.ant.internal.ui.launchConfigurations.AntLaunchDelegate.launch(AntLaunchDelegate.j\
ava:196)
      [scalac] 	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:639)
      [scalac] 	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:565)
      [scalac] 	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:558)
      [scalac] 	at org.eclipse.ui.externaltools.internal.model.ExternalToolBuilder.launchBuild(ExternalToolBuild\
er.java:176)
      [scalac] 	at org.eclipse.ui.externaltools.internal.model.ExternalToolBuilder.doBuildBasedOnScope(ExternalT\
oolBuilder.java:164)
      [scalac] 	at org.eclipse.ui.externaltools.internal.model.ExternalToolBuilder.build(ExternalToolBuilder.jav\
a:83)
      [scalac] 	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:593)
      [scalac] 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
      [scalac] 	at org.eclipse.core.runtime.Platform.run(Platform.java:785)
      [scalac] 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:168)
      [scalac] 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:202)
      [scalac] 	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:231)
      [scalac] 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
      [scalac] 	at org.eclipse.core.runtime.Platform.run(Platform.java:785)
      [scalac] 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:234)
      [scalac] 	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:303)
      [scalac] 	at org.eclipse.core.internal.resources.Project.build(Project.java:110)
      [scalac] 	at org.eclipse.ui.actions.BuildAction.invokeOperation(BuildAction.java:190)
      [scalac] 	at org.eclipse.ui.actions.WorkspaceAction.execute(WorkspaceAction.java:133)
      [scalac] 	at org.eclipse.ui.actions.WorkspaceAction$2.runInWorkspace(WorkspaceAction.java:424)
      [scalac] 	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
      [scalac] 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
what expected A meaningful error message.
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