IDE Fatal Error

java.lang.AssertionError
	at com.intellij.lang.javascript.psi.impl.JSParameterImpl.getUseScope(JSParameterImpl.java:268)
	at com.intellij.psi.impl.search.PsiSearchHelperImpl.getUseScope(PsiSearchHelperImpl.java:76)
	at com.intellij.psi.search.searches.ReferencesSearch$SearchParameters.getEffectiveSearchScope(ReferencesSearch.java:112)
	at dev.blachut.svelte.lang.codeInsight.SvelteReferencesSearch.processQuery(SvelteReferencesSearch.kt:19)
	at dev.blachut.svelte.lang.codeInsight.SvelteReferencesSearch.processQuery(SvelteReferencesSearch.kt:12)
	at com.intellij.openapi.application.QueryExecutorBase.execute(QueryExecutorBase.java:77)
	at com.intellij.util.ExecutorsQuery.processResults(ExecutorsQuery.java:28)
	at com.intellij.util.AbstractQuery.doProcessResults(AbstractQuery.java:91)
	at com.intellij.util.AbstractQuery.delegateProcessResults(AbstractQuery.java:108)
	at com.intellij.util.MergeQuery.processResults(MergeQuery.java:22)
	at com.intellij.util.AbstractQuery.doProcessResults(AbstractQuery.java:91)
	at com.intellij.util.AbstractQuery.delegateProcessResults(AbstractQuery.java:108)
	at com.intellij.util.UniqueResultsQuery.processResults(UniqueResultsQuery.java:39)
	at com.intellij.util.AbstractQuery.doProcessResults(AbstractQuery.java:91)
	at com.intellij.util.AbstractQuery.forEach(AbstractQuery.java:83)
	at com.intellij.util.AbstractQuery.findAll(AbstractQuery.java:28)
	at com.intellij.find.findUsages.FindUsagesHandlerBase.findReferencesToHighlight(FindUsagesHandlerBase.java:114)
	at com.intellij.codeInsight.highlighting.HighlightUsagesKt.getPsiUsageRanges(highlightUsages.kt:85)
	at com.intellij.codeInsight.highlighting.HighlightUsagesKt.getUsageRanges(highlightUsages.kt:56)
	at com.intellij.codeInsight.daemon.impl.IdentifierHighlighterPass.lambda$highlightTargetUsages$0(IdentifierHighlighterPass.java:199)
	at com.intellij.util.AstLoadingFilter.lambda$toComputable$2(AstLoadingFilter.java:174)
	at com.intellij.util.AstLoadingFilter.disallowTreeLoading(AstLoadingFilter.java:132)
	at com.intellij.util.AstLoadingFilter.disallowTreeLoading(AstLoadingFilter.java:116)
	at com.intellij.codeInsight.daemon.impl.IdentifierHighlighterPass.highlightTargetUsages(IdentifierHighlighterPass.java:198)
	at com.intellij.codeInsight.daemon.impl.IdentifierHighlighterPass.highlightReferencesAndDeclarations(IdentifierHighlighterPass.java:174)
	at com.intellij.codeInsight.daemon.impl.IdentifierHighlighterPass.doCollectInformation(IdentifierHighlighterPass.java:92)
	at com.intellij.codeInsight.highlighting.BackgroundHighlighter.lambda$updateHighlighted$1(BackgroundHighlighter.java:147)
	at com.intellij.codeInsight.highlighting.BackgroundHighlightingUtil.lambda$lookForInjectedFileInOtherThread$0(BackgroundHighlightingUtil.java:55)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.insideReadAction(NonBlockingReadActionImpl.java:521)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$attemptComputation$3(NonBlockingReadActionImpl.java:468)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1096)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runInReadActionWithWriteActionPriority$0(ProgressIndicatorUtils.java:79)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:157)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runWithWriteActionPriority$1(ProgressIndicatorUtils.java:119)
	at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:57)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:178)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:688)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:634)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:64)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:165)
	at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:57)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runWithWriteActionPriority(ProgressIndicatorUtils.java:116)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(ProgressIndicatorUtils.java:79)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.attemptComputation(NonBlockingReadActionImpl.java:486)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$transferToBgThread$1(NonBlockingReadActionImpl.java:408)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
	at java.base/java.lang.Thread.run(Thread.java:834)

[tomblachut]

@robsch Thanks, this is very valuable. I’ll investigate

[robsch]

My guess is that it has something to do with reactive declared variables in components. Because sometimes they are red in the editor. If I then modify the code they get the default color again. Example that I just have had: A reactive variable declaration $: x = ....; and one usage in an await {#await x} which where both in color red. After commenting out the await statement and then undoing this, the variable has got its default color.