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Reordering the compilation classpath causes the compiler to crash

See original GitHub issue

Compiler version

3.1.2

Minimized code

Clone the repository from https://github.com/vasilmkd-jetbrains/zio2-protoquill-example.

Resolve dependencies

Open the cloned repository using sbt, so it can download all of the dependencies.

Reproduction

Using sbt, print the classpath

Open sbt and run export fullClasspath. Copy the value.

Navigate to src/main/scala/example/module

Execute scalac (Scalac 3.1.2):

scalac -cp <the classpath that you copied from 2 steps above> Example.scala Main.scala

Compilation should succeed.

Now for the compiler crash.

Lexicographically sort the classpath

In the Scala repl, copy/paste the classpath.

val classpath = "<classpath value copied from sbt>"
val sorted = classpath.split(":").sorted.mkString(":")
println(sorted)

Again, copy the obtained value.

Execute scalac (Scalac 3.1.2) again:

scalac -cp <the lexicographically sorted classpath from above> Example.scala Main.scala

Result: Compilation fails and the compiler crashes with the following stack trace:

-- Error: Example.scala:34:9 ---------------------------------------------------
34 |     run(query[Person]).provide(env)
   |         ^^^^^^^^^^^^^
   |undefined: io.getquill.Quoted.apply # -1: TermRef(TermRef(TermRef(ThisType(TypeRef(NoPrefix,module class io)),object getquill),Quoted),apply) at inlining
   | This location contains code that was inlined from ExprModel.scala:222
   | This location contains code that was inlined from GetQuill.scala:3
-- Error: Example.scala:34:9 ---------------------------------------------------
34 |     run(query[Person]).provide(env)
   |         ^^^^^^^^^^^^^
   |undefined: io.getquill.Quoted.apply # -1: TermRef(TermRef(TermRef(ThisType(TypeRef(NoPrefix,module class io)),object getquill),Quoted),apply) at inlining
   | This location contains code that was inlined from QuoteMacro.scala:80
   | This location contains code that was inlined from GetQuill.scala:3
exception occurred while compiling Example.scala, Main.scala
scala.MatchError: Hole(true,2,List()) (of class dotty.tools.dotc.ast.Trees$Hole) while compiling Example.scala, Main.scala
Exception in thread "main" scala.MatchError: Hole(true,2,List()) (of class dotty.tools.dotc.ast.Trees$Hole)
        at dotty.tools.dotc.ast.desugar$.apply(Desugar.scala:1733)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2856)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.Typer.typedInlined(Typer.scala:1850)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2831)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$3$$anonfun$1(ProtoTypes.scala:416)
        at dotty.tools.dotc.typer.ProtoTypes$FunProto.cacheTypedArg(ProtoTypes.scala:386)
        at dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$3(ProtoTypes.scala:416)
        at dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$adapted$1(ProtoTypes.scala:416)
        at dotty.tools.dotc.core.Decorators$ListDecorator$.loop$3(Decorators.scala:179)
        at dotty.tools.dotc.core.Decorators$ListDecorator$.mapWithIndexConserve$extension(Decorators.scala:186)
        at dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArgs(ProtoTypes.scala:416)
        at dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:925)
        at dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1027)
        at dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:317)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedApply(Inliner.scala:1599)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2809)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.Typer.typedInlined(Typer.scala:1850)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2831)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2934)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3057)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedApply(Inliner.scala:1604)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2809)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.ReTyper.typedTyped(ReTyper.scala:62)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2814)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2934)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.Inliner.inlined(Inliner.scala:1054)
        at dotty.tools.dotc.typer.Inliner$.inlineCall(Inliner.scala:160)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.inlineIfNeeded(Inliner.scala:1682)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedApply(Inliner.scala:1606)
        at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2809)
        at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2872)
        at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:121)
        at dotty.tools.dotc.typer.Inliner$InlineTyper.typedUnadapted(Inliner.scala:1686)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2937)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2934)
        at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2941)
        at dotty.tools.dotc.typer.Inliner.inlined(Inliner.scala:1054)
        at dotty.tools.dotc.typer.Inliner$.inlineCall(Inliner.scala:160)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:86)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform$$anonfun$1(Trees.scala:1493)
        at scala.collection.immutable.List.mapConserve(List.scala:472)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1493)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1389)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:120)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:84)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1383)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:120)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:94)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1391)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:120)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:94)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1389)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:120)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:84)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:103)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:80)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.traverse$1(TreeMapWithImplicits.scala:53)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transformStats(TreeMapWithImplicits.scala:60)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:35)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.traverse$1(TreeMapWithImplicits.scala:54)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transformStats(TreeMapWithImplicits.scala:60)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:111)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:80)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1466)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:120)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:80)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.traverse$1(TreeMapWithImplicits.scala:53)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transformStats(TreeMapWithImplicits.scala:60)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:35)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.traverse$1(TreeMapWithImplicits.scala:54)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transformStats(TreeMapWithImplicits.scala:60)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:35)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.traverse$1(TreeMapWithImplicits.scala:54)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transformStats(TreeMapWithImplicits.scala:60)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:35)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.recur$1(TreeMapWithImplicits.scala:41)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.traverse$1(TreeMapWithImplicits.scala:54)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transformStats(TreeMapWithImplicits.scala:60)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1477)
        at dotty.tools.dotc.ast.TreeMapWithImplicits.transform(TreeMapWithImplicits.scala:120)
        at dotty.tools.dotc.transform.Inlining$InliningTreeMap.transform(Inlining.scala:94)
        at dotty.tools.dotc.transform.Inlining$$anon$2.transform(Inlining.scala:72)
        at dotty.tools.dotc.transform.MacroTransform.run(MacroTransform.scala:21)
        at dotty.tools.dotc.transform.Inlining.run(Inlining.scala:44)
        at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:308)
        at scala.collection.immutable.List.map(List.scala:246)
        at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:309)
        at dotty.tools.dotc.transform.Inlining.runOn(Inlining.scala:48)
        at dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:259)
        at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
        at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
        at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1328)
        at dotty.tools.dotc.Run.runPhases$1(Run.scala:270)
        at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:278)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
        at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:68)
        at dotty.tools.dotc.Run.compileUnits(Run.scala:287)
        at dotty.tools.dotc.Run.compileSources(Run.scala:220)
        at dotty.tools.dotc.Run.compile(Run.scala:204)
        at dotty.tools.dotc.Driver.doCompile(Driver.scala:39)
        at dotty.tools.dotc.Driver.process(Driver.scala:199)
        at dotty.tools.dotc.Driver.process(Driver.scala:167)
        at dotty.tools.dotc.Driver.process(Driver.scala:179)
        at dotty.tools.dotc.Driver.main(Driver.scala:209)
        at dotty.tools.dotc.Main.main(Main.scala)

Discussion:

This issue resulted in the IntelliJ IDEA build system, which for reasons that are still not fully understood (I’m working on it), lexicographically sorts the classpath before compilation, which is how we discovered this issue. The related YouTrack issue is here (not fully up to date) https://youtrack.jetbrains.com/issue/SCL-20078/Scala-3.1.1-fails-to-compile-no-method-options.

Is this classpath sorting in IntelliJ an inherent problem and should be changed to follow the classpath reported by sbt, or is this all just an unfortunate set of circumstances? Does the ordering of the classpath given to Scalac matter? I know that the ordering of the classpath matters for execution, and the loading of classes at runtime depends on it, but does the ordering of the classpath matter for Scalac compilation, when provided as an argument using -cp.

Any feedback is greatly appreciated, I’m also working on fixing the issue on the IntelliJ side. It’s not my intention to just report this error and expect a fix. Thanks in advance.

Issue Analytics

  • State:closed
  • Created a year ago
  • Comments:14 (10 by maintainers)

github_iconTop GitHub Comments

2reactions
vasilmkd-jetbrainscommented, Apr 29, 2022
1reaction
smartercommented, Apr 29, 2022

To make this easier to reproduce you could try giving instructions using coursier. cs fetch "org:name:1.0" will give a full classpath, so you could pipe that into sort and join the lines.

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