"assertion failed: orphan parameter reference" when calling method with implicit parameters (one with and one without default value) #8424
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maybe related to #5044 |
anatoliykmetyuk
added
the
stat:needs minimization
Is there anything in particular which is preventing you from minimizing it ? A good strategy is to replace the body of methods with |
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I tried that way but the simplified code is compiled successfully 🤪 Edit: Oh. To clear, I am @ohze. |
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Minimized: trait T
trait U
class Test(x: Any)(using val t: T = ???)(using val u: U = ???, disregard: Any = ???)
object Test {
def apply() = new Test(???)
}The Note that this issue was filed against Dotty |
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Update: tested on newer versions up through Output (click to expand)error when pickling type A
error when pickling tree A
error when pickling tree $conforms[A]
error when pickling tree disregard = $conforms[A]
error when pickling tree new Test(x$1)(using t$1)(using Test.$lessinit$greater$default$3(x$1)(t$1),
disregard = $conforms[A]
)
error when pickling tree {
val x$1: Nothing = ???
val t$1: Nothing = Test.$lessinit$greater$default$2(x$1)
new Test(x$1)(using t$1)(using Test.$lessinit$greater$default$3(x$1)(t$1),
disregard = $conforms[A]
)
}
error when pickling tree def apply(): Test =
{
val x$1: Nothing = ???
val t$1: Nothing = Test.$lessinit$greater$default$2(x$1)
new Test(x$1)(using t$1)(using Test.$lessinit$greater$default$3(x$1)(t$1),
disregard = $conforms[A]
)
}
error when pickling tree () extends Object() { this: Test.type =>
private def writeReplace(): AnyRef =
new scala.runtime.ModuleSerializationProxy(classOf[Test.type])
def $lessinit$greater$default$2(x: Any): Nothing = ???
def $lessinit$greater$default$3(x: Any)(using t: T): Nothing = ???
def $lessinit$greater$default$4(x: Any)(using t: T): Nothing = ???
def apply(): Test =
{
val x$1: Nothing = ???
val t$1: Nothing = Test.$lessinit$greater$default$2(x$1)
new Test(x$1)(using t$1)(using Test.$lessinit$greater$default$3(x$1)(t$1)
,
disregard = $conforms[A])
}
}
error when pickling tree @scala.annotation.internal.SourceFile("Main.scala") final module class Test$()
extends
Object() { this: Test.type =>
private def writeReplace(): AnyRef =
new scala.runtime.ModuleSerializationProxy(classOf[Test.type])
def $lessinit$greater$default$2(x: Any): Nothing = ???
def $lessinit$greater$default$3(x: Any)(using t: T): Nothing = ???
def $lessinit$greater$default$4(x: Any)(using t: T): Nothing = ???
def apply(): Test =
{
val x$1: Nothing = ???
val t$1: Nothing = Test.$lessinit$greater$default$2(x$1)
new Test(x$1)(using t$1)(using Test.$lessinit$greater$default$3(x$1)(t$1)
,
disregard = $conforms[A])
}
}
error when pickling tree package <empty> {
@scala.annotation.internal.SourceFile("Main.scala") class Test(x: Any)(using
t: T
)(using u: U, disregard: Any) extends Object() {
private[this] val x: Any
given val t: T
given val u: U
private[this] given val disregard: Any
}
final lazy module val Test: Test$ = new Test$()
@scala.annotation.internal.SourceFile("Main.scala") final module class Test$()
extends
Object() { this: Test.type =>
private def writeReplace(): AnyRef =
new scala.runtime.ModuleSerializationProxy(classOf[Test.type])
def $lessinit$greater$default$2(x: Any): Nothing = ???
def $lessinit$greater$default$3(x: Any)(using t: T): Nothing = ???
def $lessinit$greater$default$4(x: Any)(using t: T): Nothing = ???
def apply(): Test =
{
val x$1: Nothing = ???
val t$1: Nothing = Test.$lessinit$greater$default$2(x$1)
new Test(x$1)(using t$1)(using
Test.$lessinit$greater$default$3(x$1)(t$1)
, disregard = $conforms[A])
}
}
}
exception occurred while compiling Main.scala
java.lang.AssertionError: assertion failed: orphan parameter reference: TypeParamRef(A) while compiling Main.scala
Exception in thread "main" java.lang.AssertionError: assertion failed: orphan parameter reference: TypeParamRef(A)
at dotty.DottyPredef$.assertFail(DottyPredef.scala:17)
at dotty.tools.dotc.core.tasty.TreePickler.pickleNewType(TreePickler.scala:300)
at dotty.tools.dotc.core.tasty.TreePickler.pickleType(TreePickler.scala:175)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:599)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTpt(TreePickler.scala:327)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$38$$anonfun$1(TreePickler.scala:444)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$4(TreePickler.scala:444)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:445)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:471)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$37$$anonfun$1(TreePickler.scala:437)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$3(TreePickler.scala:437)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:438)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$9(TreePickler.scala:478)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:478)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTreeUnlessEmpty(TreePickler.scala:330)
at dotty.tools.dotc.core.tasty.TreePickler.pickleDef$$anonfun$2(TreePickler.scala:345)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleDef(TreePickler.scala:347)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:561)
at dotty.tools.dotc.core.tasty.TreePickler.pickleStats$$anonfun$2(TreePickler.scala:371)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.core.tasty.TreePickler.pickleStats(TreePickler.scala:371)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$26(TreePickler.scala:587)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:588)
at dotty.tools.dotc.core.tasty.TreePickler.pickleDef$$anonfun$2(TreePickler.scala:342)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleDef(TreePickler.scala:347)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:563)
at dotty.tools.dotc.core.tasty.TreePickler.pickleStats$$anonfun$2(TreePickler.scala:371)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.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:371)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree$$anonfun$28(TreePickler.scala:597)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.core.tasty.TreePickler.withLength(TreePickler.scala:70)
at dotty.tools.dotc.core.tasty.TreePickler.pickleTree(TreePickler.scala:597)
at dotty.tools.dotc.core.tasty.TreePickler.pickle$$anonfun$1(TreePickler.scala:766)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.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:766)
at dotty.tools.dotc.transform.Pickler.run$$anonfun$3$$anonfun$2(Pickler.scala:69)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.transform.Pickler.run$$anonfun$1(Pickler.scala:105)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.transform.Pickler.run(Pickler.scala:105)
at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:296)
at scala.collection.immutable.List.map(List.scala:246)
at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:297)
at dotty.tools.dotc.transform.Pickler.runOn(Pickler.scala:110)
at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:185)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
at dotty.tools.dotc.Run.runPhases$5(Run.scala:195)
at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:203)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:63)
at dotty.tools.dotc.Run.compileUnits(Run.scala:210)
at dotty.tools.dotc.Run.compileSources(Run.scala:147)
at dotty.tools.dotc.Run.compile(Run.scala:129)
at dotty.tools.dotc.Driver.doCompile(Driver.scala:38)
at dotty.tools.dotc.Driver.process(Driver.scala:195)
at dotty.tools.dotc.Driver.process(Driver.scala:164)
at dotty.tools.dotc.Driver.process(Driver.scala:176)
at dotty.tools.dotc.Driver.main(Driver.scala:203)
at dotty.tools.dotc.Main.main(Main.scala) |
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P.S. I hope not to make a habit of minimizing others' 75KLOC Akka codebases submitted as bug reports. 😬 To all bug reporters: it is very helpful to attempt to minimize your code before submitting! This example shows it can be done! |
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Alternatively: trait T
def test(x: Any)(using t: T = ???)(using u: T = ???, disregard: Any): Any = ???
val a = test(???) |
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Amazing minimization @griggt 😅, in your last example we can go a bit further and still get the TreePickler crash: object Test {
def test(using u: String = ???, disregard: Any): Any = ???
val a = test
}The generated tree for val a: Any = Test.test(using Test.test$default$1, disregard = $conforms[A])
object Test {
def test(using u: Any = ???, disregard: Any): Any = ???
val a = test
}Now the generated tree for val a: Any = Test.test($conforms[Any], $conforms[Any])as expected. |
smarter
changed the title
odersky
added a commit
to dotty-staging/dotty
that referenced
this issue
Jan 7, 2021
This was referenced Jan 7, 2021
Closed
odersky
added a commit
to dotty-staging/dotty
that referenced
this issue
Apr 6, 2022
|
It seems that the fix for this was in #13886. |
michelou
pushed a commit
to michelou/scala3
that referenced
this issue
Apr 25, 2022
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minimized code
:( I can't create a minimized code to reproduce the error.
Crash output (click arrow to expand)
The text was updated successfully, but these errors were encountered: