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| package example | |
| import scala.annotation.compileTimeOnly | |
| import scala.language.experimental.macros | |
| import scala.reflect.macros.blackbox | |
| class BugTest { | |
| def example(message: => String): LogRecord = macro BugTest.example | |
| } | |
| @compileTimeOnly("Enable macros to expand") | |
| object BugTest { | |
| def example(c: blackbox.Context)(message: c.Tree): c.Tree = { | |
| import c.universe._ | |
| q"example.LogRecord(() => $message)" | |
| } | |
| } |
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| java.util.NoSuchElementException: value arg$macro$1 | |
| at scala.collection.mutable.AnyRefMap$ExceptionDefault.apply(AnyRefMap.scala:425) | |
| at scala.collection.mutable.AnyRefMap$ExceptionDefault.apply(AnyRefMap.scala:424) | |
| at scala.collection.mutable.AnyRefMap.apply(AnyRefMap.scala:180) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder$locals$.load(BCodeSkelBuilder.scala:390) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:354) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.$anonfun$genLoadArguments$1(BCodeBodyBuilder.scala:935) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoadArguments(BCodeBodyBuilder.scala:935) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genApply(BCodeBodyBuilder.scala:628) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:296) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genBlock(BCodeBodyBuilder.scala:813) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:366) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.$anonfun$genLoadArguments$1(BCodeBodyBuilder.scala:935) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoadArguments(BCodeBodyBuilder.scala:935) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genApply(BCodeBodyBuilder.scala:620) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:296) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:370) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:270) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genStat(BCodeBodyBuilder.scala:80) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.$anonfun$genBlock$1(BCodeBodyBuilder.scala:812) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genBlock(BCodeBodyBuilder.scala:812) | |
| at scala.tools.nsc.backend.jvm.BCodeBodyBuilder$PlainBodyBuilder.genLoad(BCodeBodyBuilder.scala:366) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.emitNormalMethodBody$1(BCodeSkelBuilder.scala:602) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.genDefDef(BCodeSkelBuilder.scala:634) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.gen(BCodeSkelBuilder.scala:508) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.$anonfun$gen$7(BCodeSkelBuilder.scala:510) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.gen(BCodeSkelBuilder.scala:510) | |
| at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.genPlainClass(BCodeSkelBuilder.scala:110) | |
| at scala.tools.nsc.backend.jvm.CodeGen.genClass(CodeGen.scala:69) | |
| at scala.tools.nsc.backend.jvm.CodeGen.genClassDef$1(CodeGen.scala:31) | |
| at scala.tools.nsc.backend.jvm.CodeGen.$anonfun$genUnit$3(CodeGen.scala:54) | |
| at scala.tools.nsc.backend.jvm.CodeGen.genClassDefs$1(CodeGen.scala:54) | |
| at scala.tools.nsc.backend.jvm.CodeGen.$anonfun$genUnit$2(CodeGen.scala:53) | |
| at scala.tools.nsc.backend.jvm.CodeGen.genClassDefs$1(CodeGen.scala:53) | |
| at scala.tools.nsc.backend.jvm.CodeGen.$anonfun$genUnit$4(CodeGen.scala:58) | |
| at scala.tools.nsc.backend.jvm.CodeGen.genUnit(CodeGen.scala:58) | |
| at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase.apply(GenBCode.scala:67) | |
| at scala.tools.nsc.Global$GlobalPhase.$anonfun$applyPhase$1(Global.scala:426) | |
| at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:419) | |
| at scala.tools.nsc.Global$GlobalPhase.$anonfun$run$1(Global.scala:390) | |
| at scala.tools.nsc.Global$GlobalPhase.$anonfun$run$1$adapted(Global.scala:390) | |
| at scala.collection.Iterator.foreach(Iterator.scala:944) | |
| at scala.collection.Iterator.foreach$(Iterator.scala:944) | |
| at scala.collection.AbstractIterator.foreach(Iterator.scala:1432) | |
| at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:390) | |
| at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase.super$run(GenBCode.scala:73) | |
| at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase.$anonfun$run$1(GenBCode.scala:73) | |
| at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase.run(GenBCode.scala:71) | |
| at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1446) | |
| at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1430) | |
| at scala.tools.nsc.Global$Run.compileSources(Global.scala:1423) | |
| at scala.tools.nsc.Global$Run.compile(Global.scala:1539) | |
| at xsbt.CachedCompiler0.run(CompilerInterface.scala:130) | |
| at xsbt.CachedCompiler0.run(CompilerInterface.scala:105) | |
| at xsbt.CompilerInterface.run(CompilerInterface.scala:31) | |
| 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:498) | |
| at sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:237) | |
| at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:111) | |
| at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:90) | |
| at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:83) | |
| at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12) | |
| at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:134) | |
| at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:74) | |
| at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:117) | |
| at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:305) | |
| at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:305) | |
| at sbt.internal.inc.Incremental$.doCompile(Incremental.scala:101) | |
| at sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:82) | |
| at sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:110) | |
| at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:57) | |
| at sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:84) | |
| at sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:129) | |
| at sbt.internal.inc.Incremental$.compile(Incremental.scala:75) | |
| at sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:61) | |
| at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:309) | |
| at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:267) | |
| at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:158) | |
| at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:237) | |
| at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:68) | |
| at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1430) | |
| at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1404) | |
| at scala.Function1.$anonfun$compose$1(Function1.scala:44) | |
| at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:39) | |
| at sbt.std.Transform$$anon$4.work(System.scala:66) | |
| at sbt.Execute.$anonfun$submit$2(Execute.scala:262) | |
| at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16) | |
| at sbt.Execute.work(Execute.scala:271) | |
| at sbt.Execute.$anonfun$submit$1(Execute.scala:262) | |
| at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:174) | |
| at sbt.CompletionService$$anon$2.call(CompletionService.scala:36) | |
| at java.util.concurrent.FutureTask.run(FutureTask.java:266) | |
| at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) | |
| at java.util.concurrent.FutureTask.run(FutureTask.java:266) | |
| at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) | |
| at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) | |
| at java.lang.Thread.run(Thread.java:748) |
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| case class LogRecord(messageFunction: () => String) { | |
| lazy val message: String = messageFunction() | |
| } |
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| package example | |
| object Test { | |
| def main(args: Array[String]): Unit = { | |
| val bt = new BugTest | |
| val d = 12.3456 | |
| val record = bt.example(f"Value: $d%.0f") | |
| println(s"Record: ${record.message}") | |
| } | |
| } |
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