productIterator not implemented in case class in REPL w -optimize #5290
Comments
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Imported From: https://issues.scala-lang.org/browse/SI-5290?orig=1 |
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@VladUreche said: |
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Anton Malykh (malykh) said: C:\Soft\scala-2.9.1.final>scala -version C:\Soft\scala-2.9.1.final>scala -optimize scala> case class A(x: Int) scala> A(1).productIterator |
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@paulp said: |
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Anton Malykh (malykh) said: C:\Soft\scala-2.9.2\bin>java -version C:\Soft\scala-2.9.2\bin>scala -version C:\Soft\scala-2.9.2\bin>scala -optimize scala> case class A(x: Int) scala> A(1).productIterator |
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Anton Malykh (malykh) said: |
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@axel22 said (edited on May 2, 2012 4:53:16 PM UTC): Running scala> case class A(x: Int)
error:
while compiling: <console>
current phase: mixin
library version: version 2.10.0-20120502-012746-90d2bee45b
compiler version: version 2.10.0-20120502-012746-90d2bee45b
reconstructed args: -Ydead-code -optimise -Yinline -Yclosure-elim -Yinline-handlers
uncaught exception during compilation: java.lang.AssertionError
java.lang.AssertionError: assertion failed:
while compiling: <console>
current phase: mixin
library version: version 2.10.0-20120502-012746-90d2bee45b
compiler version: version 2.10.0-20120502-012746-90d2bee45b
reconstructed args: -Ydead-code -optimise -Yinline -Yclosure-elim -Yinline-handlers
Not an impl class:(class Product$class in package scala abstract <java>,trait Product in package scala abstract <interface> <trait> <lateinterface>)
at scala.Predef$.assert(Predef.scala:182)
at scala.tools.nsc.Global.assert(Global.scala:187)
at scala.tools.nsc.transform.Mixin.mixinImplClassMembers$1(Mixin.scala:275)
at scala.tools.nsc.transform.Mixin$$anonfun$addMixedinMembers$2.apply(Mixin.scala:372)
at scala.tools.nsc.transform.Mixin$$anonfun$addMixedinMembers$2.apply(Mixin.scala:367)
at scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:757)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
at scala.collection.immutable.List.foreach(List.scala:77)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:756)
at scala.tools.nsc.transform.Mixin.addMixedinMembers(Mixin.scala:367)
at scala.tools.nsc.transform.Mixin$MixinTransformer.preTransform(Mixin.scala:521)
at scala.tools.nsc.transform.Mixin$MixinTransformer.transform(Mixin.scala:1238)
at scala.reflect.api.Trees$Transformer.transformTemplate(Trees.scala:1538)
at scala.reflect.api.Trees$Transformer$$anonfun$transform$2.apply(Trees.scala:1432)
at scala.reflect.api.Trees$Transformer$$anonfun$transform$2.apply(Trees.scala:1431)
at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:1561)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:1430)
at scala.tools.nsc.transform.Mixin$MixinTransformer.transform(Mixin.scala:1238)
at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$2.apply(Trees.scala:1554)
at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$2.apply(Trees.scala:1552)
at scala.collection.immutable.List.loop$1(List.scala:163)
at scala.collection.immutable.List.mapConserve(List.scala:179)
at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:1552)
at scala.reflect.api.Trees$Transformer$$anonfun$transform$1.apply(Trees.scala:1426)
at scala.reflect.api.Trees$Transformer$$anonfun$transform$1.apply(Trees.scala:1426)
at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:1561)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:1425)
at scala.tools.nsc.transform.Mixin$MixinTransformer.transform(Mixin.scala:1238)
at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:228)
at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30)
at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:432)
at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:398)
at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:392)
at scala.collection.Iterator$class.foreach(Iterator.scala:706)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1133)
at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:392)
at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1336)
at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1309)
at scala.tools.nsc.Global$Run.compileSources(Global.scala:1303)
at scala.tools.nsc.interpreter.IMain.compileSourcesKeepingRun(IMain.scala:461)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compileAndSaveRun(IMain.scala:845)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.compile(IMain.scala:803)
at scala.tools.nsc.interpreter.IMain$Request.compile(IMain.scala:979)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:629)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:595)
at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:826)
at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:883)
at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:783)
at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:647)
at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:654)
at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:657)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:962)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:924)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:924)
at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:157)
at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:924)
at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:79)
at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:92)
at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:101)
at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala) |
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@adriaanm said: |
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@som-snytt said: |
If you run the scala REPL with -optimize in 2.9.1, then case classes don't auto-generate the productIterator method and calling it (or toString, eg) will causes an AbstractMethodError. This does NOT happen in 2.9.0 and 2.8.x. Reproducing:
$ scala -optimize
scala> case class A(x: Int)
scala> A(1).productIterator
java.lang.AbstractMethodError: A.productIterator()Lscala/collection/Iterator;
at .(:10)
at .()
at .(:11)
at .()
at $print()
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:704)
at scala.tools.nsc.interpreter.IMain$Request$$anonfun$14.apply(IMain.scala:920)
at scala.tools.nsc.interpreter.Line$$anonfun$1.apply$mcV$sp(Line.scala:43)
at scala.tools.nsc.io.package$$anon$2.run(package.scala:25)
at java.lang.Thread.run(Thread.java:680)
Just doing
A(1)by itself will also cause an exception, since scala.runtime.ScalaRuntime$._toString uses productIterator. This also happens when using sbt> console w/ "-optimize" as a "scalacOption", which is where I first noticed it, since I would've never run the REPL with -optimize otherwise.The text was updated successfully, but these errors were encountered: