Skip to content

Compiler crashes with scala.MatchError on SAM application when value of type Nothing is applied to using parameter list #17183

New issue
New issue
Closed
#17740
Closed
Compiler crashes with scala.MatchError on SAM application when value of type Nothing is applied to using parameter list#17183
#17740
Assignees
dwijnand
Labels
itype:bugitype:crash
Milestone
 
3.4.0
@arturaz

Description

@arturaz
arturaz
opened on Mar 30, 2023

Compiler version

3.3.1-RC1-bin-20230328-5c2efc5-NIGHTLY

Minimized code

trait Dependency

trait MyFunc {
  def apply(a: Int, b: String)(using Dependency): String
}

case class Context(f: MyFunc)

Context(f = (_, _) => ???)

https://scastie.scala-lang.org/Et7mUvadQ9Gvxm8VMvZ6ww

Output (click arrow to expand)

    scala.MatchError: ContextualMethodType(List(x$3), List(TypeRef(ThisType(TypeRef(ThisType(TypeRef(NoPrefix,module class <empty>)),module class Playground$)),trait Dependency)), TypeRef(TermRef(ThisType(TypeRef(NoPrefix,module class scala)),object Predef),type String)) (of class dotty.tools.dotc.core.Types$CachedMethodType)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleNewType(TreePickler.scala:295)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleType(TreePickler.scala:162)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:626)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTpt(TreePickler.scala:320)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleDef(TreePickler.scala:339)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:582)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$5(TreePickler.scala:491)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:491)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:484)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$2(TreePickler.scala:449)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:449)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTreeUnlessEmpty(TreePickler.scala:323)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleDef(TreePickler.scala:341)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:567)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$5(TreePickler.scala:491)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:491)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$2(TreePickler.scala:449)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:449)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleStats$$anonfun$2(TreePickler.scala:374)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleStats(TreePickler.scala:374)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:608)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleDef(TreePickler.scala:338)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:584)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleStats$$anonfun$2(TreePickler.scala:374)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleStats(TreePickler.scala:374)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:624)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickle$$anonfun$1(TreePickler.scala:798)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.core.tasty.TreePickler.pickle(TreePickler.scala:805)
    	at dotty.tools.dotc.transform.Pickler.run$$anonfun$1$$anonfun$1(Pickler.scala:90)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.transform.Pickler.run$$anonfun$1(Pickler.scala:142)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.immutable.List.foreach(List.scala:333)
    	at dotty.tools.dotc.transform.Pickler.run(Pickler.scala:142)
    	at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:324)
    	at scala.collection.immutable.List.map(List.scala:246)
    	at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:328)
    	at dotty.tools.dotc.transform.Pickler.runOn(Pickler.scala:150)
    	at dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:247)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
    	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
    	at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1321)
    	at dotty.tools.dotc.Run.runPhases$1(Run.scala:263)
    	at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:271)
    	at dotty.tools.dotc.Run.compileUnits$$anonfun$adapted$1(Run.scala:280)
    	at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:67)
    	at dotty.tools.dotc.Run.compileUnits(Run.scala:280)
    	at dotty.tools.dotc.Run.compileSources(Run.scala:195)
    	at dotty.tools.dotc.Run.compile(Run.scala:179)
    	at dotty.tools.dotc.Driver.doCompile(Driver.scala:35)
    	at dotty.tools.xsbt.CompilerBridgeDriver.run(CompilerBridgeDriver.java:88)
    	at dotty.tools.xsbt.CompilerBridge.run(CompilerBridge.java:22)
    	at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:91)
    	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$7(MixedAnalyzingCompiler.scala:193)
    	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
    	at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:248)
    	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:183)
    	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4$adapted(MixedAnalyzingCompiler.scala:163)
    	at sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:239)
    	at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:163)
    	at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:211)
    	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:534)
    	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:534)
    	at sbt.internal.inc.Incremental$.$anonfun$apply$5(Incremental.scala:179)
    	at sbt.internal.inc.Incremental$.$anonfun$apply$5$adapted(Incremental.scala:177)
    	at sbt.internal.inc.Incremental$$anon$2.run(Incremental.scala:463)
    	at sbt.internal.inc.IncrementalCommon$CycleState.next(IncrementalCommon.scala:116)
    	at sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:56)
    	at sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:52)
    	at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:263)
    	at sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:418)
    	at sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:506)
    	at sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:405)
    	at sbt.internal.inc.Incremental$.apply(Incremental.scala:171)
    	at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:534)
    	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:488)
    	at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
    	at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:425)
    	at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
    	at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2363)
    	at sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2313)
    	at sbt.internal.server.BspCompileTask$.$anonfun$compute$1(BspCompileTask.scala:30)
    	at sbt.internal.io.Retry$.apply(Retry.scala:46)
    	at sbt.internal.io.Retry$.apply(Retry.scala:28)
    	at sbt.internal.io.Retry$.apply(Retry.scala:23)
    	at sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:30)
    	at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2311)
    	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
    	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
    	at sbt.std.Transform$$anon$4.work(Transform.scala:68)
    	at sbt.Execute.$anonfun$submit$2(Execute.scala:282)
    	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
    	at sbt.Execute.work(Execute.scala:291)
    	at sbt.Execute.$anonfun$submit$1(Execute.scala:282)
    	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
    	at sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
    	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
    	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
    	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
    	at java.base/java.lang.Thread.run(Thread.java:833)

note the lack of an enriched crash report, despite #17031

Metadata

Metadata

Assignees

Labels

itype:bugitype:crash

Type

No type

Projects

No projects

Milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions