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fkowal opened this issue Mar 23, 2019 · 0 comments
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scala.MatchError for imported java enum Values #6151

fkowal opened this issue Mar 23, 2019 · 0 comments
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@anatoliykmetyuk
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area:annotations itype:bug prio:high

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@fkowal
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fkowal commented Mar 23, 2019 

import org.openjdk.jcstress.annotations._
import org.openjdk.jcstress.annotations.Expect._

object ExTests {
  @Outcome.Outcomes(
    Array(
      new Outcome(id = Array("1"), expect = ACCEPTABLE)
    )
  )
  class SimpleTest {
  }
}

expect = ACCEPTABLE causes

scala.MatchError: Ident(ACCEPTABLE) (of class dotty.tools.dotc.ast.Trees$Ident)
at dotty.tools.backend.jvm.DottyBackendInterface.emitArgument(DottyBackendInterface.scala:308)
at dotty.tools.backend.jvm.DottyBackendInterface.emitAssocs$$anonfun$2(DottyBackendInterface.scala:325)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:18)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.TraversableLike$WithFilter.$anonfun$foreach$1(TraversableLike.scala:792)
at scala.collection.immutable.List.foreach(List.scala:392)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:791)
at dotty.tools.backend.jvm.DottyBackendInterface.emitAssocs(DottyBackendInterface.scala:325)
at dotty.tools.backend.jvm.DottyBackendInterface.emitArgument(DottyBackendInterface.scala:308)
at dotty.tools.backend.jvm.DottyBackendInterface.emitArgument$$anonfun$4(DottyBackendInterface.scala:288)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:18)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:392)
at dotty.tools.backend.jvm.DottyBackendInterface.emitArgument(DottyBackendInterface.scala:289)
at dotty.tools.backend.jvm.DottyBackendInterface.emitAssocs$$anonfun$2(DottyBackendInterface.scala:325)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:18)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.TraversableLike$WithFilter.$anonfun$foreach$1(TraversableLike.scala:792)
at scala.collection.immutable.List.foreach(List.scala:392)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:791)
at dotty.tools.backend.jvm.DottyBackendInterface.emitAssocs(DottyBackendInterface.scala:325)
at dotty.tools.backend.jvm.DottyBackendInterface.emitAnnotations$$anonfun$2(DottyBackendInterface.scala:318)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:18)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.TraversableLike$WithFilter.$anonfun$foreach$1(TraversableLike.scala:792)
at scala.collection.immutable.List.foreach(List.scala:392)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:791)
at dotty.tools.backend.jvm.DottyBackendInterface.emitAnnotations(DottyBackendInterface.scala:319)
at dotty.tools.backend.jvm.BCodeHelpers$BCAnnotGen.emitAnnotations(BCodeHelpers.scala:277)
at dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.initJClass(BCodeSkelBuilder.scala:152)
at dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.genPlainClass(BCodeSkelBuilder.scala:93)
at dotty.tools.backend.jvm.GenBCodePipeline$Worker1.visit(GenBCode.scala:213)
at dotty.tools.backend.jvm.GenBCodePipeline$Worker1.run(GenBCode.scala:180)
at dotty.tools.backend.jvm.GenBCodePipeline.buildAndSendToDisk(GenBCode.scala:510)
at dotty.tools.backend.jvm.GenBCodePipeline.run(GenBCode.scala:476)
at dotty.tools.backend.jvm.GenBCode.run(GenBCode.scala:54)
at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:309)
at scala.collection.immutable.List.map(List.scala:286)
at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:311)
at dotty.tools.backend.jvm.GenBCode.runOn(GenBCode.scala:59)
at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:158)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:18)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)
at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:198)
at dotty.tools.dotc.Run.runPhases$5(Run.scala:170)
at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:178)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:102)
at dotty.tools.dotc.Run.compileUnits(Run.scala:185)
at dotty.tools.dotc.Run.compileSources(Run.scala:120)
at dotty.tools.dotc.Run.compile(Run.scala:104)
at dotty.tools.dotc.Driver.doCompile(Driver.scala:33)
at dotty.tools.dotc.Driver.process(Driver.scala:169)
at dotty.tools.dotc.Main.process(Main.scala)
at xsbt.CachedCompilerImpl.run(CachedCompilerImpl.java:69)
at xsbt.CompilerInterface.run(CompilerInterface.java:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:237)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:111)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:90)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:133)
at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:73)
at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:116)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:307)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:307)
at sbt.internal.inc.Incremental$.doCompile(Incremental.scala:106)
at sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:87)
at sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:116)
at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:63)
at sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:89)
at sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:134)
at sbt.internal.inc.Incremental$.compile(Incremental.scala:80)
at sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:67)
at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:311)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:269)
at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:159)
at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:238)
at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:69)
at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1549)
at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1523)
at scala.Function1.$anonfun$compose$1(Function1.scala:44)
at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:67)
at sbt.Execute.$anonfun$submit$2(Execute.scala:269)
at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
at sbt.Execute.work(Execute.scala:278)
at sbt.Execute.$anonfun$submit$1(Execute.scala:269)
at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

but when using =Enum.VALUE like so
expect = Expect.ACCEPTABLE
everything compiles fine
@fkowal fkowal mentioned this issue Mar 23, 2019
Closed
anatoliykmetyuk added a commit to dotty-staging/dotty that referenced this issue Apr 8, 2019
@anatoliykmetyuk
Fix scala#6151: MatchError for imported java enum Values
b8c4755 
When emitting annotations' arguments from the `DottyBackendInterface`,
the case when the argument value can be an `Ident` is not considered.
This commit adds such a case and implements it similarly to that of
the `Select` one.
smarter added a commit that referenced this issue Apr 10, 2019
@smarter
Merge pull request #6259 from dotty-staging/i6151
d4a47aa 
Fix #6151: MatchError for imported java enum Values
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@fkowal @OlivierBlanvillain @anatoliykmetyuk