Aladdin - Scala Bugtracking

Aladdin - Scala Bugtracking

	[#528]	project: compiler	priority: medium	category: bug
	submitter	assigned to	status	date submitted
	Sean	Martin	not repro	2006-02-14 18:40:34.0
subject	isSubType0
code	// scala/tools/nsc/doc/DocGenerator.scala package scala.tools.nsc.doc; import scala.tools.nsc._; import java.io.File; import scala.tools.nsc.models._; class DocGenerator[COMPILER <: GLOBAL](compiler : COMPILER, outdirname : String) { def go(units : Iterator[compiler.CompilationUnit]) = { } } // from scala/tools/nsc/Main.scala val compiler = new Global(command.settings, reporter); object generator extends DocGenerator(compiler, command.settings.outdir.value); generator.go(run.units);
what happened	crash with null pointer exception: java.lang.NullPointerException at scala.tools.nsc.symtab.Types$class.isSubType0(Types.scala:1587) at scala.tools.nsc.symtab.SymbolTable.isSubType0(SymbolTable.scala:10) at scala.tools.nsc.symtab.Types$class.isSubType(Types.scala:1521) at scala.tools.nsc.symtab.SymbolTable.isSubType(SymbolTable.scala:10) at scala.tools.nsc.symtab.Types$Type.$less$colon$less(Types.scala:226) at scala.tools.nsc.symtab.Types$$anonfun52.apply(Types.scala:1809) at scala.tools.nsc.symtab.Types$$anonfun52.apply(Types.scala:1809) at scala.List.exists(List.scala:848) at scala.tools.nsc.symtab.Types$class.elimSub(Types.scala:1809) at scala.tools.nsc.symtab.Types$class.lub00(Types.scala:1814) at scala.tools.nsc.symtab.Types$$anonfun69.apply(Types.scala:1881) at scala.tools.nsc.symtab.Types$$anonfun69.apply(Types.scala:1881) at scala.tools.nsc.symtab.Types$class.limitRecursion(Types.scala:1698) at scala.tools.nsc.symtab.Types$class.lub(Types.scala:1881) at scala.tools.nsc.symtab.SymbolTable.lub(SymbolTable.scala:10) at scala.tools.nsc.typechecker.Infer$class.solveOne0(Infer.scala:130) at scala.tools.nsc.typechecker.Infer$$anonfun9.apply(Infer.scala:133) at scala.tools.nsc.typechecker.Infer$$anonfun9.apply(Infer.scala:133) at scala.List.foreach(List.scala:690) at scala.tools.nsc.typechecker.Infer$class.scala$tools$nsc$typechecker$Infer$$solve(Infer.scala:133) at scala.tools.nsc.typechecker.Infer$Inferencer.methTypeArgs(Infer.scala:366) at scala.tools.nsc.typechecker.Infer$Inferencer.inferMethodInstance(Infer.scala:471) at scala.tools.nsc.typechecker.Typers$Typer.typedApply0(Typers.scala:979) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1356) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer.completeParentType(Typers.scala:478) at scala.tools.nsc.typechecker.Typers$Typer.parentTypes(Typers.scala:520) at scala.tools.nsc.typechecker.Namers$Namer.templateSig(Namers.scala:385) at scala.tools.nsc.typechecker.Namers$Namer.liftedTry00(Namers.scala:469) at scala.tools.nsc.typechecker.Namers$Namer.scala$tools$nsc$typechecker$Namers$Namer$$typeSig(Namers.scala:461)\ at scala.tools.nsc.typechecker.Namers$Namer$$anon0.complete(Namers.scala:308) at scala.tools.nsc.symtab.Symbols$Symbol.info(Symbols.scala:341) at scala.tools.nsc.symtab.Symbols$Symbol.initialize(Symbols.scala:414) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1141) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:904) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:894) at scala.List$.loop0(List.scala:241) at scala.List$.mapConserve(List.scala:258) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:894) at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:807) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1202) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1266) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:808) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1202) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1270) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1270) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:808) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1202) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1291) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:904) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:894) at scala.List$.loop0(List.scala:241) at scala.List$.mapConserve(List.scala:258) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:894) at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:807) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1202) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1270) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1270) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:808) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1202) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1499) at scala.tools.nsc.typechecker.Typers$Typer.transformedOrTyped(Typers.scala:1533) at scala.tools.nsc.typechecker.Typers$Typer.typedDefDef(Typers.scala:767) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1159) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:904) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:894) at scala.List$.loop0(List.scala:241) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:894) at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:654) at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:603) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1153) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1196) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:904) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:894) at scala.List$.loop0(List.scala:241) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.List$.loop0(List.scala:245) at scala.List$.mapConserve(List.scala:258) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:894) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1146) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:904) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:894) at scala.List$.loop0(List.scala:241) at scala.List$.mapConserve(List.scala:258) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:894) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1146) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:904) at scala.tools.nsc.typechecker.Typers$Typer$$anonfun41.apply(Typers.scala:894) at scala.List$.loop0(List.scala:241) at scala.List$.mapConserve(List.scala:258) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:894) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:1146) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1471) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:1495) at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon1.apply(Analyzer.scala:39) at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:208) at scala.tools.nsc.Global$GlobalPhase$$anonfun1.apply(Global.scala:197) at scala.tools.nsc.Global$GlobalPhase$$anonfun1.apply(Global.scala:197) at scala.Iterator$class.foreach(Iterator.scala:262) at scala.collection.mutable.ListBuffer$$anon0.foreach(ListBuffer.scala:218) at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:197) at scala.tools.nsc.Global$Run.compileSources(Global.scala:416) at scala.tools.nsc.Global$Run.compile(Global.scala:473) at ch.epfl.lamp.sdt.build.ScalaCompilerManager$ScalaCompiler.compile(ScalaCompilerManager.java:178) at ch.epfl.lamp.sdt.build.ScalaProjectBuilder.build(ScalaProjectBuilder.java:76) at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:593) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:168) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:202) at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:231) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:234) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:303) at org.eclipse.core.internal.resources.Project.build(Project.java:87) at org.eclipse.ui.actions.BuildAction.invokeOperation(BuildAction.java:190) at org.eclipse.ui.actions.WorkspaceAction.execute(WorkspaceAction.java:133) at org.eclipse.ui.actions.WorkspaceAction$2.runInWorkspace(WorkspaceAction.java:424) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
what expected	should give an error message (GLOBAL not defined).
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Changes of this bug report

Sean edited on 2006-02-14 18:42:32.0

Martin edited on 2006-02-14 19:21:38.0

I could not reproduce. How did you run the compiler?