Backend triggers assertion in assertClassNotArray #461
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smarter
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@DarkDimius : Can you try compiling the same fie twice? |
Though It doesn't actually pass Ycheck: |
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I guess I know the issue. |
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OK, this appears to be very tricky to reproduce, here's a script that should help: #!/bin/sh
set -x
mv ff ff.bak
mkdir newDir
cd newDir
echo "package ff\nobject Foo {}" > po.scala
cd ..
sbt "run ./newDir/po.scala"
sbt "run ./newDir/po.scala"Put this in a file called bug.sh, then: % sh bug.sh
+ mv ff ff.bak
+ mkdir newDir
mkdir: cannot create directory ‘newDir’: File exists
+ cd newDir
+ echo package ff\nobject Foo {}
+ cd ..
+ sbt run ./newDir/po.scala
[info] Loading global plugins from /home/smarter/.sbt/0.13/plugins
[info] Loading project definition from /home/smarter/opt/dotty/project
[info] Set current project to dotty (in build file:/home/smarter/opt/dotty/)
[info] Running dotty.tools.dotc.Main ./newDir/po.scala
[success] Total time: 3 s, completed Apr 4, 2015 2:25:20 AM
+ sbt run ./newDir/po.scala
[info] Loading global plugins from /home/smarter/.sbt/0.13/plugins
[info] Loading project definition from /home/smarter/opt/dotty/project
[info] Set current project to dotty (in build file:/home/smarter/opt/dotty/)
[info] Running dotty.tools.dotc.Main ./newDir/po.scala
[error] java.lang.AssertionError: assertion failed: val <none>
[error] at scala.Predef$.assert(Predef.scala:165)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.assertClassNotArray(BCodeHelpers.scala:214)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.assertClassNotArrayNotPrimitive(BCodeHelpers.scala:219)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.getClassBTypeAndRegisterInnerClass(BCodeHelpers.scala:238)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$JCommonBuilder.getClassBTypeAndRegisterInnerClass(BCodeHelpers.scala:469)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.internalName(BCodeHelpers.scala:210)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$JCommonBuilder.internalName(BCodeHelpers.scala:469)
[error] at scala.tools.nsc.backend.jvm.BCodeHelpers$JMirrorBuilder.genMirrorClass(BCodeHelpers.scala:494)
[error] at dotty.tools.backend.jvm.GenBCodePipeline$Worker1.visit(GenBCode.scala:164)
[error] at dotty.tools.backend.jvm.GenBCodePipeline$Worker1.run(GenBCode.scala:126)
[error] at dotty.tools.backend.jvm.GenBCodePipeline.buildAndSendToDisk(GenBCode.scala:320)
[error] at dotty.tools.backend.jvm.GenBCodePipeline.run(GenBCode.scala:289)
[error] at dotty.tools.backend.jvm.GenBCode.run(GenBCode.scala:40)
[error] at dotty.tools.dotc.core.Phases$Phase$$anonfun$runOn$1.apply(Phases.scala:266)
[error] at dotty.tools.dotc.core.Phases$Phase$$anonfun$runOn$1.apply(Phases.scala:264)
[error] at scala.collection.immutable.List.map(List.scala:273)
[error] at dotty.tools.dotc.core.Phases$Phase$class.runOn(Phases.scala:264)
[error] at dotty.tools.backend.jvm.GenBCode.runOn(GenBCode.scala:33)
[error] at dotty.tools.dotc.Run$$anonfun$compileSources$1$$anonfun$apply$mcV$sp$3.apply(Run.scala:50)
[error] at dotty.tools.dotc.Run$$anonfun$compileSources$1$$anonfun$apply$mcV$sp$3.apply(Run.scala:47)
[error] at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
[error] at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
[error] at dotty.tools.dotc.Run$$anonfun$compileSources$1.apply$mcV$sp(Run.scala:47)
[error] at dotty.tools.dotc.Run$$anonfun$compileSources$1.apply(Run.scala:42)
[error] at dotty.tools.dotc.Run$$anonfun$compileSources$1.apply(Run.scala:42)
[error] at dotty.tools.dotc.util.Stats$.monitorHeartBeat(Stats.scala:68)
[error] at dotty.tools.dotc.Run.compileSources(Run.scala:41)
[error] at dotty.tools.dotc.Run.compile(Run.scala:32)
[error] at dotty.tools.dotc.Driver.doCompile(Driver.scala:20)
[error] at dotty.tools.dotc.Main$.doCompile(Main.scala:26)
[error] at dotty.tools.dotc.Driver.process(Driver.scala:31)
[error] at dotty.tools.dotc.Driver.main(Driver.scala:40)
[error] at dotty.tools.dotc.Main.main(Main.scala)
[error] error: Error while emitting po.scala
[error] assertion failed: val <none>
[error] one error found
java.lang.RuntimeException: Nonzero exit code returned from runner: 1
at scala.sys.package$.error(package.scala:27)
[trace] Stack trace suppressed: run last dotty/compile:run for the full output.
[error] (dotty/compile:run) Nonzero exit code returned from runner: 1
[error] Total time: 2 s, completed Apr 4, 2015 2:25:27 AM |
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Was able to reproduce, after running the script in loop for around 20 times. The problem that causes backend to go wild: |
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Yes, I'm not crazy then :). |
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That's some kind of bug in
It could have to do with #462. @odersky, AFAIK you have made some fixes to |
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Why this doesn't create a problem for travis: current test infrastructure emits classfile outputs in |
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@smarter, after latest fixes for stale symbols and restoreScopes cannot reproduce anymore. |
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I can't reproduce anymore either, I guess whatever fixed #462 fixed this. |
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The following code:
Results in an assertion error:
A quick bisection search shows that this started happening when #436 was merged.
Assigned to @DarkDimius .
The text was updated successfully, but these errors were encountered: