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case class definition with more than 22 arguments crashes compiler in makeTupleTerm #7098

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scabug opened this issue Feb 7, 2013 · 3 comments
Closed

case class definition with more than 22 arguments crashes compiler in makeTupleTerm #7098

scabug opened this issue Feb 7, 2013 · 3 comments
Assignees
@retronym
Labels
compiler crash
Milestone
2.11.0-M3

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@scabug
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scabug commented Feb 7, 2013 

scala> case class Foo(a: Int, b: Int, c: Int, d: Int, e: Int, f: Int, g: Int, h: Int, i: Int, j: Int, k: Int, l: Int, m: Int, n: Int, o: Int, p: Int, q: Int, r: Int, s: Int, t: Int, u: Int, v: Int, w: Int, x: Int, y: Int, z: Int)

In 2.10:

<console>:7: error: Implementation restriction: case classes cannot have more than 22 parameters.
       case class Foo(a: Int, b: Int, c: Int, d: Int, e: Int, f: Int, g: Int, h: Int, i: Int, j: Int, k: Int, l: Int, m: Int, n: Int, o: Int, p: Int, q: Int, r: Int, s: Int, t: Int, u: Int, v: Int, w: Int, x: Int, y: Int, z: Int)
                  ^
error: 
     while compiling: <console>
        during phase: typer
     library version: version 2.10.0
    compiler version: version 2.10.0
  reconstructed args: 

  last tree to typer: Literal(Constant(()))
              symbol: null
   symbol definition: null
                 tpe: Unit
       symbol owners: 
      context owners: object Foo -> object $iw -> object $iw -> object $read -> package $line5

== Enclosing template or block ==

Template(
  runtime.this.AbstractFunction22[Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Foo] // parents
  ValDef(
    private
    "_"
    <tpt>
    <empty>
  )
  // 2 statements
  DefDef( // def <init>: <?> in object Foo
    <method>
    "<init>"
    []
    List(Nil)
    <tpt>
    Block(
      Apply(
        super."<init>"
        Nil
      )
      ()
    )
  )
  DefDef( // final override def toString: <?> in object Foo
    <method> final override
    "toString"
    []
    List(Nil)
    <tpt>
    "Foo"
  )
)

== Expanded type of tree ==

TypeRef(TypeSymbol(final abstract class Unit extends AnyVal))

uncaught exception during compilation: java.lang.ArrayIndexOutOfBoundsException
java.lang.ArrayIndexOutOfBoundsException: 26
	at scala.tools.nsc.ast.TreeDSL$CODE$.makeTupleTerm(TreeDSL.scala:313)
	at scala.tools.nsc.ast.TreeDSL$CODE$.SOME(TreeDSL.scala:302)
	at scala.tools.nsc.typechecker.Unapplies$class.scala$tools$nsc$typechecker$Unapplies$$caseClassUnapplyReturnValue(Unapplies.scala:101)
	at scala.tools.nsc.typechecker.Unapplies$$anonfun$3.apply(Unapplies.scala:160)
	at scala.tools.nsc.typechecker.Unapplies$$anonfun$3.apply(Unapplies.scala:160)
	at scala.tools.nsc.typechecker.Unapplies$class.caseModuleUnapplyMeth(Unapplies.scala:160)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1.caseModuleUnapplyMeth(ReplGlobal.scala:24)
	at scala.tools.nsc.typechecker.Namers$Namer.addApplyUnapply(Namers.scala:1242)
	at scala.tools.nsc.typechecker.Namers$Namer.templateSig(Namers.scala:872)
	at scala.tools.nsc.typechecker.Namers$Namer.getSig$1(Namers.scala:1300)
	at scala.tools.nsc.typechecker.Namers$Namer.typeSig(Namers.scala:1347)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply$mcV$sp(Namers.scala:709)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply(Namers.scala:708)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply(Namers.scala:708)
	at scala.tools.nsc.typechecker.Namers$Namer.scala$tools$nsc$typechecker$Namers$Namer$$logAndValidate(Namers.scala:1385)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1.apply(Namers.scala:708)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1.apply(Namers.scala:707)
	at scala.tools.nsc.typechecker.Namers$$anon$1.completeImpl(Namers.scala:1496)
	at scala.tools.nsc.typechecker.Namers$LockingTypeCompleter$class.complete(Namers.scala:1504)
	at scala.tools.nsc.typechecker.Namers$$anon$1.complete(Namers.scala:1494)
	at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1217)
	at scala.reflect.internal.Symbols$Symbol.initialize(Symbols.scala:1352)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5119)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5458)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:29)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2770)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$addSynthetics$1$1$$anonfun$apply$27.apply(Typers.scala:2828)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$addSynthetics$1$1.apply(Typers.scala:2827)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$addSynthetics$1$1.apply(Typers.scala:2826)
	at scala.reflect.internal.Scopes$Scope.foreach(Scopes.scala:315)
	at scala.tools.nsc.typechecker.Typers$Typer.addSynthetics$1(Typers.scala:2826)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2874)
	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1862)
	at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1769)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5401)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5458)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:29)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2770)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$55.apply(Typers.scala:2870)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$55.apply(Typers.scala:2870)
	at scala.collection.immutable.List.loop$1(List.scala:164)
	at scala.collection.immutable.List.mapConserve(List.scala:180)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2870)
	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1862)
	at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1769)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5401)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5458)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:29)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2770)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$55.apply(Typers.scala:2870)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$55.apply(Typers.scala:2870)
	at scala.collection.immutable.List.loop$1(List.scala:164)
	at scala.collection.immutable.List.mapConserve(List.scala:180)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2870)
	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1862)
	at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1769)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5401)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5458)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:29)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2770)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$55.apply(Typers.scala:2870)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$55.apply(Typers.scala:2870)
	at scala.collection.immutable.List.loop$1(List.scala:164)
	at scala.collection.immutable.List.mapConserve(List.scala:180)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2870)
	at scala.tools.nsc.typechecker.Typers$Typer.typedPackageDef$1(Typers.scala:5127)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5404)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5458)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:29)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5509)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.apply(Analyzer.scala:98)
	at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:461)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:90)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:90)
	at scala.collection.Iterator$class.foreach(Iterator.scala:727)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1156)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.run(Analyzer.scala:90)
	at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1574)
	at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1548)
	at scala.tools.nsc.Global$Run.compileSources(Global.scala:1544)
	at scala.tools.nsc.interpreter.IMain.compileSourcesKeepingRun(IMain.scala:425)
	at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compileAndSaveRun(IMain.scala:798)
	at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compile(IMain.scala:758)
	at scala.tools.nsc.interpreter.IMain$Request.compile$lzycompute(IMain.scala:933)
	at scala.tools.nsc.interpreter.IMain$Request.compile(IMain.scala:928)
	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:600)
	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:565)
	at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:745)
	at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:790)
	at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:702)
	at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:566)
	at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:573)
	at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:576)
	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:867)
	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:822)
	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:822)
	at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
	at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:822)
	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:83)
	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:96)
	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:105)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

That entry seems to have slain the compiler.  Shall I replay
your session? I can re-run each line except the last one.

Similar in 2.11:

<console>:7: error: Implementation restriction: case classes cannot have more than 22 parameters.
       case class Foo(a: Int, b: Int, c: Int, d: Int, e: Int, f: Int, g: Int, h: Int, i: Int, j: Int, k: Int, l: Int, m: Int, n: Int, o: Int, p: Int, q: Int, r: Int, s: Int, t: Int, u: Int, v: Int, w: Int, x: Int, y: Int, z: Int)
                  ^
error: 
     while compiling: <console>
        during phase: typer
     library version: version 2.11.0-20130206-121550-5545f35730
    compiler version: version 2.11.0-20130206-121550-5545f35730
  reconstructed args: 

  last tree to typer: Ident(Foo)
              symbol: <none> (flags: )
   symbol definition: <none>
       symbol owners: 
      context owners: object Foo -> object $iw -> object $iw -> object $read -> package $line3

== Enclosing template or block ==

Template(
  runtime.this.AbstractFunction22[Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Foo] // parents
  ValDef(
    private
    "_"
    <tpt>
    <empty>
  )
  // 2 statements
  DefDef( // def <init>: <?> in object Foo
    <method>
    "<init>"
    []
    List(Nil)
    <tpt>
    Block(
      Apply(
        super."<init>"
        Nil
      )
      ()
    )
  )
  DefDef( // final override def toString: <?> in object Foo
    <method> final override <synthetic>
    "toString"
    []
    List(Nil)
    <tpt>
    "Foo"
  )
)

uncaught exception during compilation: ArrayIndexOutOfBoundsException("26") @ scala.tools.nsc.ast.TreeDSL$CODE$.makeTupleTerm(TreeDSL.scala:265)
java.lang.ArrayIndexOutOfBoundsException: 26
	at scala.tools.nsc.ast.TreeDSL$CODE$.makeTupleTerm(TreeDSL.scala:265)
	at scala.tools.nsc.ast.TreeDSL$CODE$.SOME(TreeDSL.scala:254)
	at scala.tools.nsc.typechecker.Unapplies$class.scala$tools$nsc$typechecker$Unapplies$$caseClassUnapplyReturnValue(Unapplies.scala:89)
	at scala.tools.nsc.typechecker.Unapplies$$anonfun$3.apply(Unapplies.scala:148)
	at scala.tools.nsc.typechecker.Unapplies$$anonfun$3.apply(Unapplies.scala:148)
	at scala.tools.nsc.typechecker.Unapplies$class.caseModuleUnapplyMeth(Unapplies.scala:148)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1.caseModuleUnapplyMeth(ReplGlobal.scala:23)
	at scala.tools.nsc.typechecker.Namers$Namer.addApplyUnapply(Namers.scala:1403)
	at scala.tools.nsc.typechecker.Namers$Namer.templateSig(Namers.scala:902)
	at scala.tools.nsc.typechecker.Namers$Namer.moduleSig(Namers.scala:960)
	at scala.tools.nsc.typechecker.Namers$Namer.getSig$1(Namers.scala:1457)
	at scala.tools.nsc.typechecker.Namers$Namer.typeSig(Namers.scala:1472)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply$mcV$sp(Namers.scala:750)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply(Namers.scala:749)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply(Namers.scala:749)
	at scala.tools.nsc.typechecker.Namers$Namer.scala$tools$nsc$typechecker$Namers$Namer$$logAndValidate(Namers.scala:1499)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1.apply(Namers.scala:749)
	at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1.apply(Namers.scala:741)
	at scala.tools.nsc.typechecker.Namers$$anon$1.completeImpl(Namers.scala:1614)
	at scala.tools.nsc.typechecker.Namers$LockingTypeCompleter$class.complete(Namers.scala:1622)
	at scala.tools.nsc.typechecker.Namers$$anon$1.complete(Namers.scala:1612)
	at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1260)
	at scala.reflect.internal.Symbols$Symbol.initialize(Symbols.scala:1396)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4919)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5240)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:28)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2792)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$addSynthetics$1$2$$anonfun$apply$32.apply(Typers.scala:2854)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$addSynthetics$1$2.apply(Typers.scala:2853)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$addSynthetics$1$2.apply(Typers.scala:2852)
	at scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:775)
	at scala.reflect.internal.Scopes$Scope.foreach(Scopes.scala:333)
	at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:774)
	at scala.tools.nsc.typechecker.Typers$Typer.addSynthetics$1(Typers.scala:2852)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2900)
	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1953)
	at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1826)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5188)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5240)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:28)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2792)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:2896)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:2896)
	at scala.collection.immutable.List.loop$1(List.scala:164)
	at scala.collection.immutable.List.mapConserve(List.scala:180)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2896)
	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1953)
	at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1826)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5188)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5240)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:28)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2792)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:2896)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:2896)
	at scala.collection.immutable.List.loop$1(List.scala:164)
	at scala.collection.immutable.List.mapConserve(List.scala:180)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2896)
	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1953)
	at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1826)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5188)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5240)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:28)
	at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2792)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:2896)
	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:2896)
	at scala.collection.immutable.List.loop$1(List.scala:164)
	at scala.collection.immutable.List.mapConserve(List.scala:180)
	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2896)
	at scala.tools.nsc.typechecker.Typers$Typer.typedPackageDef$1(Typers.scala:4925)
	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5191)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5240)
	at scala.tools.nsc.interpreter.ReplGlobal$$anon$1$$anon$2.typed(ReplGlobal.scala:28)
	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5299)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.apply(Analyzer.scala:99)
	at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:409)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:91)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:90)
	at scala.collection.Iterator$class.foreach(Iterator.scala:725)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1156)
	at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.run(Analyzer.scala:90)
	at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1504)
	at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1479)
	at scala.tools.nsc.Global$Run.compileSources(Global.scala:1475)
	at scala.tools.nsc.interpreter.IMain.compileSourcesKeepingRun(IMain.scala:410)
	at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compileAndSaveRun(IMain.scala:748)
	at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compile(IMain.scala:708)
	at scala.tools.nsc.interpreter.IMain$Request.compile$lzycompute(IMain.scala:852)
	at scala.tools.nsc.interpreter.IMain$Request.compile(IMain.scala:847)
	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:573)
	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:538)
	at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:567)
	at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:612)
	at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:524)
	at scala.tools.nsc.interpreter.ILoop.processLine(ILoop.scala:380)
	at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:397)
	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:680)
	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:666)
	at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:666)
	at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:95)
	at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:666)
	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:81)
	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:94)
	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

That entry seems to have slain the compiler.  Shall I replay
your session? I can re-run each line except the last one.

It doesn't crash in 2.9.2.
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scabug commented Feb 7, 2013

Imported From: https://issues.scala-lang.org/browse/SI-7098?orig=1
Reporter: @soc
Affected Versions: 2.10.0, 2.11.0-M1
See #7324, #7099, #7296

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scabug commented Apr 3, 2013

@retronym said:
This is tested and fixed in retronym/scala@ad79d74, which is now merged to master.

That was the first of the two commits in scala/scala#2305

@scabug scabug closed this as completed Apr 3, 2013
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scabug commented Apr 3, 2013

@soc said:
Just created a related bug, #7324 (and assigned it to you because I assumed you're still familiar with the code involved).

Would it make sense to backport this issue and #7324 to 2.10.x too?

@scabug scabug added this to the 2.11.0-M3 milestone Apr 7, 2017
@scabug scabug mentioned this issue Apr 7, 2017
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