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`NoSuchElementException: val` raised by simple quotes

Open cchantep opened this issue 4 years ago • 6 comments

Compiler version

3.1.2-RC1-bin-20211022-f7abd32-NIGHTLY

Minimized code

// res: Try[_]
'{
  val v = ${ res }.get

  println("v=" + v)
}

See code

Output

Compilation exception

java.util.NoSuchElementException: val v$8 
scala.collection.mutable.AnyRefMap$ExceptionDefault.apply(AnyRefMap.scala:508)
scala.collection.mutable.AnyRefMap$ExceptionDefault.apply(AnyRefMap.scala:507)
scala.collection.mutable.AnyRefMap.apply(AnyRefMap.scala:207)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder$locals$.load(BCodeSkelBuilder.scala:508)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:415)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoadArguments(BCodeBodyBuilder.scala:1127)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genApply(BCodeBodyBuilder.scala:772)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:361)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:285)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoadQualifier(BCodeBodyBuilder.scala:1111)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genApply(BCodeBodyBuilder.scala:771)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:361)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:285)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoadQualifier(BCodeBodyBuilder.scala:1111)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genTypeApply(BCodeBodyBuilder.scala:638)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:452)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:305)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genStat(BCodeBodyBuilder.scala:111)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genBlock$$anonfun$1(BCodeBodyBuilder.scala:1019)
scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
scala.collection.immutable.List.foreach(List.scala:333)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genBlock(BCodeBodyBuilder.scala:1019)
dotty.tools.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:432)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.emitNormalMethodBody$1(BCodeSkelBuilder.scala:766)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.genDefDef(BCodeSkelBuilder.scala:801)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.gen(BCodeSkelBuilder.scala:609)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.gen$$anonfun$1(BCodeSkelBuilder.scala:615)
scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
scala.collection.immutable.List.foreach(List.scala:333)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.gen(BCodeSkelBuilder.scala:615)
dotty.tools.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.genPlainClass(BCodeSkelBuilder.scala:230)
dotty.tools.backend.jvm.GenBCodePipeline$Worker1.visit(GenBCode.scala:259)
dotty.tools.backend.jvm.GenBCodePipeline$Worker1.run(GenBCode.scala:224)
dotty.tools.backend.jvm.GenBCodePipeline.buildAndSendToDisk(GenBCode.scala:559)
dotty.tools.backend.jvm.GenBCodePipeline.run(GenBCode.scala:525)
dotty.tools.backend.jvm.GenBCode.run(GenBCode.scala:63)
dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:308)
scala.collection.immutable.List.map(List.scala:246)
dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:309)
dotty.tools.backend.jvm.GenBCode.runOn(GenBCode.scala:71)
dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:261)
scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
dotty.tools.dotc.Run.runPhases$1(Run.scala:272)
dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:280)
scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:68)
dotty.tools.dotc.Run.compileUnits(Run.scala:289)
dotty.tools.dotc.Run.compileUnits(Run.scala:228)
dotty.tools.dotc.Driver.finish(Driver.scala:60)
dotty.tools.dotc.Driver.doCompile(Driver.scala:40)
dotty.tools.xsbt.CompilerBridgeDriver.run(CompilerBridgeDriver.java:88)
dotty.tools.xsbt.CompilerBridge.run(CompilerBridge.java:22)
sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:91)
sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$7(MixedAnalyzingCompiler.scala:192)
scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:247)
sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:182)
sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4$adapted(MixedAnalyzingCompiler.scala:163)
sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:239)
sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:163)
sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:210)
sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:528)
sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:528)
sbt.internal.inc.Incremental$.$anonfun$apply$5(Incremental.scala:175)
sbt.internal.inc.Incremental$.$anonfun$apply$5$adapted(Incremental.scala:173)
sbt.internal.inc.Incremental$$anon$2.run(Incremental.scala:459)
sbt.internal.inc.IncrementalCommon$CycleState.next(IncrementalCommon.scala:116)
sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:56)
sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:52)
sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:263)
sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:414)
sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:501)
sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:401)
sbt.internal.inc.Incremental$.apply(Incremental.scala:167)
sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:528)
sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:482)
sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:420)
sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2357)
sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2314)
sbt.internal.io.Retry$.apply(Retry.scala:46)
sbt.internal.io.Retry$.apply(Retry.scala:28)
sbt.internal.io.Retry$.apply(Retry.scala:23)
sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:31)
sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2310)
scala.Function1.$anonfun$compose$1(Function1.scala:49)
sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
sbt.std.Transform$$anon$4.work(Transform.scala:68)
sbt.Execute.$anonfun$submit$2(Execute.scala:282)
sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
sbt.Execute.work(Execute.scala:291)
sbt.Execute.$anonfun$submit$1(Execute.scala:282)
sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
java.base/java.lang.Thread.run(Thread.java:844)

Expectation

No error

cchantep avatar Nov 15 '21 12:11 cchantep

Minimizing the code in the link above would be a good spree task

nicolasstucki avatar Dec 15 '21 10:12 nicolasstucki

Hi, I stumbled on the same problem when generating Macros for some RPC Service.

Here is a minimal crashing example: https://github.com/nob13/dottybug13955 using Scala 3.2.1

The crashing line is the val inside the generated method content in https://github.com/nob13/dottybug13955/blob/1795ff73cec62f7a93f939c8092457151052129c/src/main/scala/Adder.scala#L40

If the method returns without result, everything works fine.

nob13 avatar Dec 16 '22 08:12 nob13

Note: Declaring value using ValDef.let works. Maybe val shouldn't be present in Quotes?

nob13 avatar Dec 16 '22 12:12 nob13

Update: The problem was a missing given Quotes = decl.asQuotes, which can be shown when -Xcheck-macros is activated.

Updated the referenced Github Example, this works now.

nob13 avatar Dec 18 '22 20:12 nob13

Update: The problem was a missing given Quotes = decl.asQuotes, which can be shown when -Xcheck-macros is activated.

Updated the referenced Github Example, this works now.

Nice! So can we close this issue, or is there a problem left to solve?

mbovel avatar May 20 '24 19:05 mbovel

At least the error message can be improved

He-Pin avatar May 21 '24 01:05 He-Pin