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regression in error quality with missing symbols #5148
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Imported From: https://issues.scala-lang.org/browse/SI-5148?orig=1 |
@hubertp said: error:
while compiling: t5148.scala
during phase: specialize
library version: version 2.10.0-20120626-010055-5a7bbfe035
compiler version: version 2.10.0-20120626-010055-5a7bbfe035
reconstructed args: -d /tmp
last tree to typer: Literal(Constant(()))
symbol: null
symbol definition: null
tpe: Unit
symbol owners:
context owners: package interpreter
== Enclosing template or block ==
PackageDef(
"interpreter" // final package interpreter in package nsc, tree.tpe=scala.tools.nsc.interpreter.type
ClassDef( // class IMain extends Imports in package interpreter
0
"IMain"
[]
Template( // val <local IMain>: <notype> in class IMain, tree.tpe=scala.tools.nsc.interpreter.IMain
"java.lang.Object", "scala.tools.nsc.interpreter.Imports" // parents
ValDef(
private
"_"
<tpt>
<empty>
)
DefDef( // def <init>(): scala.tools.nsc.interpreter.IMain in class IMain
<method>
"<init>"
[]
List(Nil)
<tpt> // tree.tpe=scala.tools.nsc.interpreter.IMain
Block( // tree.tpe=Unit
Apply( // def <init>(): Object in class Object, tree.tpe=Object
IMain.super."<init>" // def <init>(): Object in class Object, tree.tpe=()Object
Nil
)
()
)
)
)
)
)
== Expanded type of tree ==
TypeRef(TypeSymbol(final abstract class Unit extends AnyVal))
uncaught exception during compilation: scala.reflect.internal.Types$TypeError
error: scala.reflect.internal.Types$TypeError: bad reference while unpickling /home/hubert/tmp/repos/scala-dev/build/pack/lib/scala-compiler.jar(scala/tools/nsc/interpreter/Imports.class): term memberHandlers not found in scala.tools.nsc.interpreter.IMain
at scala.reflect.internal.pickling.UnPickler$Scan.toTypeError(UnPickler.scala:836)
at scala.reflect.internal.pickling.UnPickler$Scan$LazyTypeRef.complete(UnPickler.scala:849)
at scala.reflect.internal.pickling.UnPickler$Scan$LazyTypeRef.load(UnPickler.scala:851)
at scala.reflect.internal.Symbols$Symbol$$anonfun$typeParams$1.apply$mcV$sp(Symbols.scala:1420)
at scala.reflect.internal.Symbols$Symbol$$anonfun$typeParams$1.apply(Symbols.scala:1420)
at scala.reflect.internal.Symbols$Symbol$$anonfun$typeParams$1.apply(Symbols.scala:1420)
at scala.reflect.internal.SymbolTable.atPhase(SymbolTable.scala:195)
at scala.reflect.internal.Symbols$Symbol.typeParams(Symbols.scala:1420)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$scala$tools$nsc$transform$SpecializeTypes$$normalizeMember$1.apply$mcZ$sp(SpecializeTypes.scala:795)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$scala$tools$nsc$transform$SpecializeTypes$$normalizeMember$1.apply(SpecializeTypes.scala:795)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$scala$tools$nsc$transform$SpecializeTypes$$normalizeMember$1.apply(SpecializeTypes.scala:795)
at scala.reflect.internal.SymbolTable.atPhase(SymbolTable.scala:195)
at scala.reflect.internal.SymbolTable.beforePhase(SymbolTable.scala:203)
at scala.tools.nsc.Global.beforeTyper(Global.scala:1118)
at scala.tools.nsc.transform.SpecializeTypes.scala$tools$nsc$transform$SpecializeTypes$$normalizeMember(SpecializeTypes.scala:795)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$29.apply(SpecializeTypes.scala:748)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$29.apply(SpecializeTypes.scala:746)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:245)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
at scala.collection.immutable.List.foreach(List.scala:77)
at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:245)
at scala.collection.AbstractTraversable.flatMap(Traversable.scala:105)
at scala.tools.nsc.transform.SpecializeTypes.specializeClass(SpecializeTypes.scala:746)
at scala.tools.nsc.transform.SpecializeTypes.transformInfo(SpecializeTypes.scala:1151)
at scala.tools.nsc.transform.InfoTransform$Phase$$anon$1.transform(InfoTransform.scala:38)
at scala.reflect.internal.Symbols$Symbol.rawInfo(Symbols.scala:1295)
at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1223)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$transformInfo$1$$anonfun$apply$37.apply(SpecializeTypes.scala:1143)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$transformInfo$1$$anonfun$apply$37.apply(SpecializeTypes.scala:1143)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:239)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:239)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
at scala.collection.immutable.List.foreach(List.scala:77)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:239)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$transformInfo$1.apply(SpecializeTypes.scala:1143)
at scala.tools.nsc.transform.SpecializeTypes$$anonfun$transformInfo$1.apply(SpecializeTypes.scala:1143)
at scala.reflect.internal.SymbolTable.atPhase(SymbolTable.scala:195)
at scala.reflect.internal.SymbolTable.afterPhase(SymbolTable.scala:204)
at scala.tools.nsc.Global.afterSpecialize(Global.scala:1107)
at scala.tools.nsc.transform.SpecializeTypes.transformInfo(SpecializeTypes.scala:1143)
at scala.tools.nsc.transform.InfoTransform$Phase$$anon$1.transform(InfoTransform.scala:38)
at scala.reflect.internal.Symbols$Symbol.rawInfo(Symbols.scala:1295)
at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1223)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2$$anonfun$implSpecClasses$1.apply(SpecializeTypes.scala:1755)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2$$anonfun$implSpecClasses$1.apply(SpecializeTypes.scala:1752)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
at scala.collection.immutable.List.foreach(List.scala:77)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2.implSpecClasses(SpecializeTypes.scala:1752)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2$$anonfun$transform$17.apply(SpecializeTypes.scala:1486)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2$$anonfun$transform$17.apply(SpecializeTypes.scala:1485)
at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:674)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:38)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2.transform(SpecializeTypes.scala:1485)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2.transform(SpecializeTypes.scala:1311)
at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$2.apply(Trees.scala:667)
at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$2.apply(Trees.scala:665)
at scala.collection.immutable.List.loop$1(List.scala:163)
at scala.collection.immutable.List.mapConserve(List.scala:179)
at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:665)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2$$anonfun$transform$17.apply(SpecializeTypes.scala:1487)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2$$anonfun$transform$17.apply(SpecializeTypes.scala:1485)
at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:674)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:38)
at scala.tools.nsc.transform.SpecializeTypes$$anon$2.transform(SpecializeTypes.scala:1485)
at scala.tools.nsc.transform.SpecializeTypes$SpecializationTransformer$$anonfun$48.apply(SpecializeTypes.scala:1845)
at scala.tools.nsc.transform.SpecializeTypes$SpecializationTransformer$$anonfun$48.apply(SpecializeTypes.scala:1845)
at scala.reflect.internal.SymbolTable.atPhase(SymbolTable.scala:195)
at scala.reflect.internal.SymbolTable.afterPhase(SymbolTable.scala:204)
at scala.tools.nsc.Global.afterSpecialize(Global.scala:1107)
at scala.tools.nsc.transform.SpecializeTypes$SpecializationTransformer.transform(SpecializeTypes.scala:1845)
at scala.tools.nsc.transform.SpecializeTypes$SpecializationTransformer.transform(SpecializeTypes.scala:1841)
at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:229)
at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30) |
@hubertp said (edited by @lrytz on Sep 30, 2016 8:48:18 AM UTC): |
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Trying to compile this file fails kind of sensibly in 2.9.1:
In current trunk it explodes instead:
This hits me every day, plus or minus.
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