Possible regression caused by PR #114 (original issue #74)

Question

Possible regression caused by PR #114 (original issue #74)

dwhjames opened this issue 9 years ago · 8 comments

I think I’ve come across a regression that I think comes from PR #114.

The reason I think so is that while the issue is observed after upgrading from 0.9.3 to 0.9.4, the issue is not present when compiling against a local build from 5aa390e, the parent of your merge of #114, and #114 was the last thing to go into the 0.9.4 release.

I’ve had trouble constructing a good report of this issue, but hopefully you’ve got a better intuition for what might be at fault here.

The upgrade led to compilation errors such as:

[error] java.lang.AssertionError: assertion failed: TypeApply tpe is null:
[error] stateMachine$macro$10.this.await$macro$16$macro$23.asInstanceOf[Unit]

The full stack trace was:

java.lang.AssertionError: assertion failed: TypeApply tpe is null:
stateMachine$macro$10.this.await$macro$16$macro$23.asInstanceOf[Unit]
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:539)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.internal.Trees$$anonfun$itransform$1.apply(Trees.scala:1357)
    at scala.reflect.internal.Trees$$anonfun$itransform$1.apply(Trees.scala:1356)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1355)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:477)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1366)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:515)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformCaseDefs$1.apply(Trees.scala:2581)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformCaseDefs$1.apply(Trees.scala:2581)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformCaseDefs(Trees.scala:2581)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1382)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1366)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1390)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:511)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1366)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1366)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1421)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.internal.Trees$$anonfun$itransform$2.apply(Trees.scala:1363)
    at scala.reflect.internal.Trees$$anonfun$itransform$2.apply(Trees.scala:1361)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1360)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:451)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1404)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$1.apply(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$1.apply(TypingTransformers.scala:40)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.scala$tools$nsc$transform$UnCurry$UnCurryTransformer$$super$transform(UnCurry.scala:469)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:525)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer.transformTemplate(Trees.scala:2563)
    at scala.reflect.internal.Trees$$anonfun$itransform$4.apply(Trees.scala:1408)
    at scala.reflect.internal.Trees$$anonfun$itransform$4.apply(Trees.scala:1407)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1406)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1366)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.internal.Trees$$anonfun$itransform$2.apply(Trees.scala:1363)
    at scala.reflect.internal.Trees$$anonfun$itransform$2.apply(Trees.scala:1361)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1360)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:451)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1404)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$1.apply(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$1.apply(TypingTransformers.scala:40)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.scala$tools$nsc$transform$UnCurry$UnCurryTransformer$$super$transform(UnCurry.scala:469)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:525)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer.transformTemplate(Trees.scala:2563)
    at scala.reflect.internal.Trees$$anonfun$itransform$4.apply(Trees.scala:1408)
    at scala.reflect.internal.Trees$$anonfun$itransform$4.apply(Trees.scala:1407)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1406)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
    at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
    at scala.collection.immutable.List.loop$1(List.scala:173)
    at scala.collection.immutable.List.mapConserve(List.scala:189)
    at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
    at scala.reflect.internal.Trees$$anonfun$itransform$7.apply(Trees.scala:1426)
    at scala.reflect.internal.Trees$$anonfun$itransform$7.apply(Trees.scala:1426)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
    at scala.reflect.internal.Trees$class.itransform(Trees.scala:1425)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
    at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:40)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$2.apply(TypingTransformers.scala:42)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$transform$2.apply(TypingTransformers.scala:42)
    at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
    at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:42)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:528)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:102)
    at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:66)
    at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:147)
    at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30)
    at scala.tools.nsc.Global$GlobalPhase$$anonfun$applyPhase$1.apply$mcV$sp(Global.scala:440)
    at scala.tools.nsc.Global$GlobalPhase.withCurrentUnit(Global.scala:431)
    at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:440)
    at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:398)
    at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:398)
    at scala.collection.Iterator$class.foreach(Iterator.scala:742)
    at scala.collection.AbstractIterator.foreach(Iterator.scala:1194)
    at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:398)
    at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1501)
    at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1486)
    at scala.tools.nsc.Global$Run.compileSources(Global.scala:1481)
    at scala.tools.nsc.Global$Run.compile(Global.scala:1582)
    at xsbt.CachedCompiler0.run(CompilerInterface.scala:116)
    at xsbt.CachedCompiler0.run(CompilerInterface.scala:95)
    at xsbt.CompilerInterface.run(CompilerInterface.scala:26)
    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:483)
        at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:101)
    at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:47)
    at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:41)
    at sbt.compiler.MixedAnalyzingCompiler$$anonfun$compileScala$1$1.apply$mcV$sp(MixedAnalyzingCompiler.scala:51)
    at sbt.compiler.MixedAnalyzingCompiler$$anonfun$compileScala$1$1.apply(MixedAnalyzingCompiler.scala:51)
    at sbt.compiler.MixedAnalyzingCompiler$$anonfun$compileScala$1$1.apply(MixedAnalyzingCompiler.scala:51)
    at sbt.compiler.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:75)
    at sbt.compiler.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:50)
    at sbt.compiler.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:65)
    at sbt.compiler.IC$$anonfun$compileInternal$1.apply(IncrementalCompiler.scala:160)
    at sbt.compiler.IC$$anonfun$compileInternal$1.apply(IncrementalCompiler.scala:160)
    at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:66)
    at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:64)
    at sbt.inc.IncrementalCommon.cycle(IncrementalCommon.scala:31)
    at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:62)
    at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:61)
    at sbt.inc.Incremental$.manageClassfiles(Incremental.scala:89)
    at sbt.inc.Incremental$.compile(Incremental.scala:61)
    at sbt.inc.IncrementalCompile$.apply(Compile.scala:54)
    at sbt.compiler.IC$.compileInternal(IncrementalCompiler.scala:160)
    at sbt.compiler.IC$.incrementalCompile(IncrementalCompiler.scala:138)
    at sbt.Compiler$.compile(Compiler.scala:128)
    at sbt.Compiler$.compile(Compiler.scala:114)
    at sbt.Defaults$.sbt$Defaults$$compileIncrementalTaskImpl(Defaults.scala:814)
    at sbt.Defaults$$anonfun$compileIncrementalTask$1.apply(Defaults.scala:805)
    at sbt.Defaults$$anonfun$compileIncrementalTask$1.apply(Defaults.scala:803)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
    at sbt.std.Transform$$anon$4.work(System.scala:63)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
    at sbt.Execute.work(Execute.scala:235)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
    at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

While investigating the issue I managed to come across a different error report:

[error] java.lang.AssertionError: assertion failed: 
[error]   TypeApply tpe is null:
[error] stateMachine$macro$1.this.await$macro$9$macro$19.asInstanceOf[Unit]
[error]      while compiling: (…snip…)
[error]         during phase: uncurry
[error]      library version: version 2.11.7
[error]     compiler version: version 2.11.7
[error]   reconstructed args: -Xfuture -deprecation -feature -Xfatal-warnings -classpath (…snip…)

The end of that report contains production code that I can’t post here, but I’d be happy to send it privately.

retronym commented 9 years ago

😄

Answer 1 · 2015-07-27T15:20:25.000Z

@retronym, I believe #121 has fixed the issue. The project that exhibited this issue now compiles cleanly.

For future reference, could you recommend any strategies for trying to localize an issue like this? The first error had no file/line information.

Answer 2 · 2015-07-28T06:05:25.000Z

Thanks for the feedback. I'm releasing a new version right now with the fixes for #120 and #121 included.

Answer 3 · 2015-07-28T18:30:53.000Z

I see a tagged release for 0.9.5, but nothing up on sonatype. Is it still in the pipeline?

Answer 4 · 2015-07-28T18:35:44.000Z

That's my doing, sorry! I deleted the staging repo today because it was not closed, and I was doing a release of scala-asm which then ended up in the same bucket :) I just re-started the two scala-async builds now: https://travis-ci.org/scala/async/builds/72954284 and https://travis-ci.org/scala/async/builds/72954343.

I'll post the staging repo URL when it becomes available.

Answer 5 · 2015-07-28T18:36:38.000Z

OK, https://oss.sonatype.org/content/repositories/orgscala-lang-1259/ is there now.

Answer 6 · 2015-07-28T20:37:20.000Z

I’m assuming this takes some time to replicate to sonatype releases and beyond?

Answer 7 · 2015-07-28T21:37:41.000Z

releasing the staging repo to maven central is a manual step that I leave to @retronym. in the meantime you can add the above URL as a resolver in sbt.