Created
July 10, 2013 06:45
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| > scalac Sample.scala | |
| while compiling: Sample.scala | |
| during phase: patmat | |
| library version: version 2.10.2 | |
| compiler version: version 2.10.2 | |
| reconstructed args: | |
| last tree to typer: Ident(r) | |
| symbol: value r (flags: <triedcooking>) | |
| symbol definition: val r: String | |
| tpe: String | |
| symbol owners: value r -> method run -> object Sample -> package <empty> | |
| context owners: method run -> object Sample -> package <empty> | |
| == Enclosing template or block == | |
| DefDef( // def run(): Unit in object Sample | |
| <method> | |
| "run" | |
| [] | |
| List(Nil) | |
| <tpt> // tree.tpe=Unit | |
| Match( // tree.tpe=Unit | |
| Typed( // tree.tpe=Short | |
| 0 | |
| <tpt> // tree.tpe=Short | |
| ) | |
| CaseDef( // tree.tpe=Unit | |
| UnApply( // tree.tpe=Short | |
| Apply( // def unapply(i: Int): Option[String] in object Sample, tree.tpe=Option[String] | |
| "Sample"."unapply" // def unapply(i: Int): Option[String] in object Sample, tree.tpe=(i: Int)Option[String] | |
| "<unapply-selector>"."toInt" // def toInt: Int in class Short, tree.tpe=Int | |
| ) | |
| List( | |
| Bind( // val r: String, tree.tpe=String | |
| "r" | |
| "_" // tree.tpe=String | |
| ) | |
| ) | |
| ) | |
| Apply( // def println(x: Any): Unit in object Predef, tree.tpe=Unit | |
| scala.this."Predef"."println" // def println(x: Any): Unit in object Predef, tree.tpe=(x: Any)Unit | |
| "r" // val r: String, tree.tpe=String | |
| ) | |
| ) | |
| ) | |
| ) | |
| == Expanded type of tree == | |
| AliasTypeRef( | |
| pre = SingleType(pre = ThisType(package scala), object Predef) | |
| Alias(type String = String) | |
| normalize = TypeRef( | |
| TypeSymbol( | |
| final class String extends Serializable with Comparable[String] with CharSequence | |
| ) | |
| ) | |
| ) | |
| unhandled exception while transforming Sample.scala | |
| error: uncaught exception during compilation: scala.MatchError | |
| error: scala.MatchError: None (of class scala.None$) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$ExtractorCallRegular.extractorCall$lzycompute(MatchTranslation.scala:577) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$ExtractorCallRegular.extractorCall(MatchTranslation.scala:577) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$ExtractorCallRegular.tpe(MatchTranslation.scala:579) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$ExtractorCallRegular.isTyped(MatchTranslation.scala:580) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$class.translateExtractorPattern$1(MatchTranslation.scala:243) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$class.translatePattern(MatchTranslation.scala:310) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$OptimizingMatchTranslator.translatePattern(PatternMatching.scala:87) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$class.translateCase(MatchTranslation.scala:231) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$OptimizingMatchTranslator.translateCase(PatternMatching.scala:87) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$$anonfun$4.apply(MatchTranslation.scala:153) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$$anonfun$4.apply(MatchTranslation.scala:153) | |
| at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) | |
| at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) | |
| at scala.collection.immutable.List.foreach(List.scala:318) | |
| at scala.collection.TraversableLike$class.map(TraversableLike.scala:244) | |
| at scala.collection.AbstractTraversable.map(Traversable.scala:105) | |
| at scala.tools.nsc.transform.patmat.MatchTranslation$MatchTranslator$class.translateMatch(MatchTranslation.scala:153) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$OptimizingMatchTranslator.translateMatch(PatternMatching.scala:87) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:60) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:55) | |
| at scala.reflect.internal.Trees$$anonfun$itransform$2.apply(Trees.scala:1235) | |
| at scala.reflect.internal.Trees$$anonfun$itransform$2.apply(Trees.scala:1233) | |
| at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2936) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:34) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:28) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:19) | |
| at scala.reflect.internal.Trees$class.itransform(Trees.scala:1232) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2897) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:48) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:71) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:55) | |
| at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2927) | |
| at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2925) | |
| at scala.collection.immutable.List.loop$1(List.scala:170) | |
| at scala.collection.immutable.List.mapConserve(List.scala:186) | |
| at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2925) | |
| at scala.reflect.internal.Trees$class.itransform(Trees.scala:1276) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2897) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:44) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$1.apply(TypingTransformers.scala:44) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$1.apply(TypingTransformers.scala:44) | |
| at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2936) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:34) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:71) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:55) | |
| at scala.reflect.api.Trees$Transformer.transformTemplate(Trees.scala:2904) | |
| at scala.reflect.internal.Trees$$anonfun$itransform$5.apply(Trees.scala:1285) | |
| at scala.reflect.internal.Trees$$anonfun$itransform$5.apply(Trees.scala:1284) | |
| at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2936) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:34) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:28) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:19) | |
| at scala.reflect.internal.Trees$class.itransform(Trees.scala:1283) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2897) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:48) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:71) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:55) | |
| at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2927) | |
| at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2925) | |
| at scala.collection.immutable.List.loop$1(List.scala:170) | |
| at scala.collection.immutable.List.mapConserve(List.scala:186) | |
| at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2925) | |
| at scala.reflect.internal.Trees$$anonfun$itransform$7.apply(Trees.scala:1298) | |
| at scala.reflect.internal.Trees$$anonfun$itransform$7.apply(Trees.scala:1298) | |
| at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2936) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:34) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:28) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:19) | |
| at scala.reflect.internal.Trees$class.itransform(Trees.scala:1297) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:13) | |
| at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2897) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:44) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$2.apply(TypingTransformers.scala:46) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$2.apply(TypingTransformers.scala:46) | |
| at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2936) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:34) | |
| at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:71) | |
| at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:55) | |
| at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:227) | |
| at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30) | |
| at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:464) | |
| at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:431) | |
| at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:431) | |
| at scala.collection.Iterator$class.foreach(Iterator.scala:727) | |
| at scala.collection.AbstractIterator.foreach(Iterator.scala:1157) | |
| at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:431) | |
| at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1583) | |
| at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1557) | |
| at scala.tools.nsc.Global$Run.compileSources(Global.scala:1553) | |
| at scala.tools.nsc.Global$Run.compile(Global.scala:1662) | |
| at scala.tools.nsc.Driver.doCompile(Driver.scala:33) | |
| at scala.tools.nsc.Main$.doCompile(Main.scala:79) | |
| at scala.tools.nsc.Driver.process(Driver.scala:54) | |
| at scala.tools.nsc.Driver.main(Driver.scala:67) | |
| at scala.tools.nsc.Main.main(Main.scala) |
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| object Sample { | |
| def unapply(i: Int): Option[String] = Some(i.toString) | |
| def run(): Unit = (0: Short) match { | |
| case Sample(r) => println(r) | |
| } | |
| } |
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