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harpocrates opened this issue Feb 4, 2020 · 0 comments
Closed

Typeclass instance using defaulted typeclass method #8198

harpocrates opened this issue Feb 4, 2020 · 0 comments
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@nicolasstucki
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area:extension-methods itype:bug itype:crash

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@harpocrates
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I think this should successfully compile. In any case, it should not crash the compiler. As the crash output indicates, this was uncovered using 0.23.0-bin-20200203-2ced64f-NIGHTLY.

minimized code

trait Eq[A] {
  def (x: A) === (y: A): Boolean
  def (x: A) /== (y: A): Boolean = !(x === y)
}

case class Id[T](id: T)

given idEq[A](given eqA: Eq[A]): Eq[Id[A]] = new {
  def (i1: Id[A]) === (i2: Id[A]) = !(i1.id /== i2.id)
}

Crash output (click arrow to expand)

[info] Loading settings for project global-plugins from metals.sbt ...
[info] Loading global plugins from /Users/atheriault/.sbt/1.0/plugins
[info] Loading settings for project bug-1-build from plugins.sbt ...
[info] Loading project definition from /Users/atheriault/Scratch/bug-1/project
[info] Loading settings for project root from build.sbt ...
Fetching latest Dotty nightly version...
Latest Dotty nightly build version: 0.23.0-bin-20200203-2ced64f-NIGHTLY
[info] Set current project to dotty-simple (in build file:/Users/atheriault/Scratch/bug-1/)
[info] Executing in batch mode. For better performance use sbt's shell
[info] Compiling 2 Scala sources to /Users/atheriault/Scratch/bug-1/target/scala-0.23/classes ...
[info] exception occurred while typechecking /Users/atheriault/Scratch/bug-1/Main.scala
[info] exception occurred while compiling /Users/atheriault/Scratch/bug-1/Main.scala, /Users/atheriault/Scratch/bug-1/src/main/scala/Main.scala
scala.MatchError: Apply(TypedSplice(Select(This(Ident($anon)),/==)),List(TypedSplice(Select(Ident(i1),id)))) (of class dotty.tools.dotc.ast.Trees$Apply) while compiling /Users/atheriault/Scratch/bug-1/Main.scala, /Users/atheriault/Scratch/bug-1/src/main/scala/Main.scala
[error] ## Exception when compiling 2 sources to /Users/atheriault/Scratch/bug-1/target/scala-0.23/classes
[error] scala.MatchError: Apply(TypedSplice(Select(This(Ident($anon)),/==)),List(TypedSplice(Select(Ident(i1),id)))) (of class dotty.tools.dotc.ast.Trees$Apply)
[error] dotty.tools.dotc.typer.Applications.typedOpAssign$1(Applications.scala:951)
[error] dotty.tools.dotc.typer.Applications.$anonfun$20$$anonfun$1(Applications.scala:966)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2375)
[error] dotty.tools.dotc.typer.Applications.$anonfun$6(Applications.scala:970)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2378)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:971)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:83)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2151)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Applications.extMethodApply(Applications.scala:1973)
[error] dotty.tools.dotc.typer.Typer.extMethodApply(Typer.scala:83)
[error] dotty.tools.dotc.typer.Typer.tryExtension$1(Typer.scala:3074)
[error] dotty.tools.dotc.typer.Typer.adaptToSubType$1(Typer.scala:3081)
[error] dotty.tools.dotc.typer.Typer.adaptNoArgsOther$5(Typer.scala:2927)
[error] dotty.tools.dotc.typer.Typer.adaptNoArgs$1(Typer.scala:2979)
[error] dotty.tools.dotc.typer.Typer.adapt1(Typer.scala:3185)
[error] dotty.tools.dotc.typer.Typer.op$3(Typer.scala:2578)
[error] dotty.tools.dotc.typer.Typer.adapt(Typer.scala:2579)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:489)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:513)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2131)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] dotty.tools.dotc.typer.Applications.typedFunPart$$anonfun$1(Applications.scala:818)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2375)
[error] dotty.tools.dotc.typer.Applications.typedFunPart(Applications.scala:826)
[error] dotty.tools.dotc.typer.Typer.typedFunPart(Typer.scala:83)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:837)
[error] dotty.tools.dotc.typer.Applications.$anonfun$5(Applications.scala:963)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2375)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:971)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:83)
[error] dotty.tools.dotc.typer.Typer.typedInfixOp(Typer.scala:2050)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2188)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2194)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:489)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:513)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2131)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2194)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1679)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2138)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:1812)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2141)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:796)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:800)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2159)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedNew(Typer.scala:626)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2155)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1679)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2138)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:1812)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2141)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:1938)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2182)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] dotty.tools.dotc.typer.FrontEnd.liftedTree1$2(FrontEnd.scala:78)
[error] dotty.tools.dotc.typer.FrontEnd.typeCheck$$anonfun$1(FrontEnd.scala:83)
[error] dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] dotty.tools.dotc.typer.FrontEnd.monitor(FrontEnd.scala:42)
[error] dotty.tools.dotc.typer.FrontEnd.typeCheck(FrontEnd.scala:84)
[error] dotty.tools.dotc.typer.FrontEnd.runOn$$anonfun$3(FrontEnd.scala:114)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.immutable.List.foreach(List.scala:305)
[error] dotty.tools.dotc.typer.FrontEnd.runOn(FrontEnd.scala:114)
[error] dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:167)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
[error] dotty.tools.dotc.Run.runPhases$5(Run.scala:177)
[error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:185)
[error] dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:64)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:192)
[error] dotty.tools.dotc.Run.compileSources(Run.scala:129)
[error] dotty.tools.dotc.Run.compile(Run.scala:112)
[error] dotty.tools.dotc.Driver.doCompile(Driver.scala:36)
[error] dotty.tools.dotc.Driver.process(Driver.scala:189)
[error] dotty.tools.dotc.Main.process(Main.scala)
[error] xsbt.CachedCompilerImpl.run(CachedCompilerImpl.java:69)
[error] xsbt.CompilerInterface.run(CompilerInterface.java:41)
[error] java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[error] java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[error] java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[error] java.base/java.lang.reflect.Method.invoke(Method.java:566)
[error] sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:248)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:122)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:95)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:91)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:186)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3$adapted(MixedAnalyzingCompiler.scala:77)
[error] sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:215)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:77)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:146)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:343)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:343)
[error] sbt.internal.inc.Incremental$.doCompile(Incremental.scala:120)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:100)
[error] sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:180)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:98)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:102)
[error] sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:155)
[error] sbt.internal.inc.Incremental$.compile(Incremental.scala:92)
[error] sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:75)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:348)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:301)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:168)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:248)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:74)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1762)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1735)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] sbt.std.Transform$$anon$4.work(Transform.scala:67)
[error] sbt.Execute.$anonfun$submit$2(Execute.scala:281)
[error] sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:19)
[error] sbt.Execute.work(Execute.scala:290)
[error] sbt.Execute.$anonfun$submit$1(Execute.scala:281)
[error] sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error] sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error] java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
[error] java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[error] java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[error] java.base/java.lang.Thread.run(Thread.java:834)
[error]            
[error] scala.MatchError: Apply(TypedSplice(Select(This(Ident($anon)),/==)),List(TypedSplice(Select(Ident(i1),id)))) (of class dotty.tools.dotc.ast.Trees$Apply)
[error] 	at dotty.tools.dotc.typer.Applications.typedOpAssign$1(Applications.scala:951)
[error] 	at dotty.tools.dotc.typer.Applications.$anonfun$20$$anonfun$1(Applications.scala:966)
[error] 	at dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2375)
[error] 	at dotty.tools.dotc.typer.Applications.$anonfun$6(Applications.scala:970)
[error] 	at dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2378)
[error] 	at dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:971)
[error] 	at dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:83)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2151)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Applications.extMethodApply(Applications.scala:1973)
[error] 	at dotty.tools.dotc.typer.Typer.extMethodApply(Typer.scala:83)
[error] 	at dotty.tools.dotc.typer.Typer.tryExtension$1(Typer.scala:3074)
[error] 	at dotty.tools.dotc.typer.Typer.adaptToSubType$1(Typer.scala:3081)
[error] 	at dotty.tools.dotc.typer.Typer.adaptNoArgsOther$5(Typer.scala:2927)
[error] 	at dotty.tools.dotc.typer.Typer.adaptNoArgs$1(Typer.scala:2979)
[error] 	at dotty.tools.dotc.typer.Typer.adapt1(Typer.scala:3185)
[error] 	at dotty.tools.dotc.typer.Typer.op$3(Typer.scala:2578)
[error] 	at dotty.tools.dotc.typer.Typer.adapt(Typer.scala:2579)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] 	at dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:489)
[error] 	at dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:513)
[error] 	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2131)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] 	at dotty.tools.dotc.typer.Applications.typedFunPart$$anonfun$1(Applications.scala:818)
[error] 	at dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2375)
[error] 	at dotty.tools.dotc.typer.Applications.typedFunPart(Applications.scala:826)
[error] 	at dotty.tools.dotc.typer.Typer.typedFunPart(Typer.scala:83)
[error] 	at dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:837)
[error] 	at dotty.tools.dotc.typer.Applications.$anonfun$5(Applications.scala:963)
[error] 	at dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2375)
[error] 	at dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:971)
[error] 	at dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:83)
[error] 	at dotty.tools.dotc.typer.Typer.typedInfixOp(Typer.scala:2050)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2188)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2194)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] 	at dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:489)
[error] 	at dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:513)
[error] 	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2131)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2194)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] 	at dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1679)
[error] 	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2138)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] 	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] 	at dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:1812)
[error] 	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2141)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] 	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] 	at dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:796)
[error] 	at dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:800)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2159)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedNew(Typer.scala:626)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2155)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] 	at dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1679)
[error] 	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2138)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] 	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] 	at dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:1812)
[error] 	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2141)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2208)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2281)
[error] 	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2325)
[error] 	at dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:1938)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2182)
[error] 	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2209)
[error] 	at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2247)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2256)
[error] 	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2259)
[error] 	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2367)
[error] 	at dotty.tools.dotc.typer.FrontEnd.liftedTree1$2(FrontEnd.scala:78)
[error] 	at dotty.tools.dotc.typer.FrontEnd.typeCheck$$anonfun$1(FrontEnd.scala:83)
[error] 	at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] 	at dotty.tools.dotc.typer.FrontEnd.monitor(FrontEnd.scala:42)
[error] 	at dotty.tools.dotc.typer.FrontEnd.typeCheck(FrontEnd.scala:84)
[error] 	at dotty.tools.dotc.typer.FrontEnd.runOn$$anonfun$3(FrontEnd.scala:114)
[error] 	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] 	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] 	at scala.collection.immutable.List.foreach(List.scala:305)
[error] 	at dotty.tools.dotc.typer.FrontEnd.runOn(FrontEnd.scala:114)
[error] 	at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:167)
[error] 	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] 	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] 	at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
[error] 	at dotty.tools.dotc.Run.runPhases$5(Run.scala:177)
[error] 	at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:185)
[error] 	at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] 	at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:64)
[error] 	at dotty.tools.dotc.Run.compileUnits(Run.scala:192)
[error] 	at dotty.tools.dotc.Run.compileSources(Run.scala:129)
[error] 	at dotty.tools.dotc.Run.compile(Run.scala:112)
[error] 	at dotty.tools.dotc.Driver.doCompile(Driver.scala:36)
[error] 	at dotty.tools.dotc.Driver.process(Driver.scala:189)
[error] 	at dotty.tools.dotc.Main.process(Main.scala)
[error] 	at xsbt.CachedCompilerImpl.run(CachedCompilerImpl.java:69)
[error] 	at xsbt.CompilerInterface.run(CompilerInterface.java:41)
[error] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[error] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[error] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[error] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
[error] 	at sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:248)
[error] 	at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:122)
[error] 	at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:95)
[error] 	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:91)
[error] 	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error] 	at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:186)
[error] 	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
[error] 	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3$adapted(MixedAnalyzingCompiler.scala:77)
[error] 	at sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:215)
[error] 	at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:77)
[error] 	at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:146)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:343)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:343)
[error] 	at sbt.internal.inc.Incremental$.doCompile(Incremental.scala:120)
[error] 	at sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:100)
[error] 	at sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:180)
[error] 	at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:98)
[error] 	at sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:102)
[error] 	at sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:155)
[error] 	at sbt.internal.inc.Incremental$.compile(Incremental.scala:92)
[error] 	at sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:75)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:348)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:301)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:168)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:248)
[error] 	at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:74)
[error] 	at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1762)
[error] 	at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1735)
[error] 	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] 	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] 	at sbt.std.Transform$$anon$4.work(Transform.scala:67)
[error] 	at sbt.Execute.$anonfun$submit$2(Execute.scala:281)
[error] 	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:19)
[error] 	at sbt.Execute.work(Execute.scala:290)
[error] 	at sbt.Execute.$anonfun$submit$1(Execute.scala:281)
[error] 	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error] 	at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error] 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] 	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
[error] 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[error] 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[error] 	at java.base/java.lang.Thread.run(Thread.java:834)
[error] (Compile / compileIncremental) scala.MatchError: Apply(TypedSplice(Select(This(Ident($anon)),/==)),List(TypedSplice(Select(Ident(i1),id)))) (of class dotty.tools.dotc.ast.Trees$Apply)
[error] Total time: 3 s, completed Feb. 4, 2020, 8:42:08 p.m.
@nicolasstucki nicolasstucki self-assigned this Feb 5, 2020
liufengyun added a commit that referenced this issue Feb 5, 2020
@liufengyun
Merge pull request #8200 from dotty-staging/fix-#8198
b0aac8c 
Fix #8198: Handle trees with TypedSplice
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