Exception: Don't know how to resolve variable in match

[mbriggs]

Version

4.7.0

Exception

I renamed a module from Customizer.PrintAsset to Customizer.Wrap. Went to another file that had

alias Customizer.{PrintAsset, Artwork, NPH}

backspaced through the PrintAsset, part and changed it to

alias Customizer.{Wrap, Artwork, NPH}

during that, the exception fired.

side note: this is the first error I have noticed in 4.7 so far!

Message

Don't know how to resolve variable in match

Excerpt

{wIntellijIdeaRulezzz , Artwork, NPH}

Line(s) 2-2

Element Class Name

org.elixir_lang.psi.impl.ElixirMultipleAliasesImpl

Stacktrace

org.elixir_lang.errorreport.Logger.error(Logger.java:51)
org.elixir_lang.errorreport.Logger.error(Logger.java:34)
org.elixir_lang.psi.scope.Variable.execute(Variable.java:141)
org.elixir_lang.psi.impl.ElixirPsiImplUtil.processDeclarationsRecursively(ElixirPsiImplUtil.java:1708)
org.elixir_lang.psi.impl.ElixirPsiImplUtil.processDeclarations(ElixirPsiImplUtil.java:1574)
org.elixir_lang.psi.impl.ElixirMultipleAliasesImpl.processDeclarations(ElixirMultipleAliasesImpl.java:52)
com.intellij.psi.util.PsiTreeUtil.treeWalkUp(PsiTreeUtil.java:1064)
org.elixir_lang.psi.scope.variable.Variants.lookupElementList(Variants.java:27)
org.elixir_lang.reference.Callable.getVariants(Callable.java:583)
com.intellij.codeInsight.completion.CompletionData.completeReference(CompletionData.java:292)
com.intellij.codeInsight.completion.CompletionVariant.addReferenceCompletions(CompletionVariant.java:164)
com.intellij.codeInsight.completion.CompletionData.completeReference(CompletionData.java:97)
com.intellij.codeInsight.completion.LegacyCompletionContributor.lambda$completeReference$0(LegacyCompletionContributor.java:71)
com.intellij.codeInsight.completion.LegacyCompletionContributor.processReference(LegacyCompletionContributor.java:125)
com.intellij.codeInsight.completion.LegacyCompletionContributor.processReferences(LegacyCompletionContributor.java:108)
com.intellij.codeInsight.completion.LegacyCompletionContributor.completeReference(LegacyCompletionContributor.java:69)
com.intellij.codeInsight.completion.LegacyCompletionContributor.fillCompletionVariants(LegacyCompletionContributor.java:52)
com.intellij.codeInsight.completion.CompletionService.getVariantsFromContributors(CompletionService.java:81)
com.intellij.codeInsight.completion.CompletionResultSet.runRemainingContributors(CompletionResultSet.java:132)
com.intellij.codeInsight.completion.CompletionResultSet.runRemainingContributors(CompletionResultSet.java:125)
com.intellij.codeInsight.template.impl.LiveTemplateCompletionContributor$2.addCompletions(LiveTemplateCompletionContributor.java:88)
com.intellij.codeInsight.completion.CompletionProvider.addCompletionVariants(CompletionProvider.java:36)
com.intellij.codeInsight.completion.CompletionContributor.fillCompletionVariants(CompletionContributor.java:151)
com.intellij.codeInsight.completion.CompletionService.getVariantsFromContributors(CompletionService.java:81)
com.intellij.codeInsight.completion.CompletionService.performCompletion(CompletionService.java:110)
com.intellij.codeInsight.completion.CompletionProgressIndicator.calculateItems(CompletionProgressIndicator.java:773)
com.intellij.codeInsight.completion.CompletionProgressIndicator.access$500(CompletionProgressIndicator.java:91)
com.intellij.codeInsight.completion.CompletionProgressIndicator$1CalculateItems.run(CompletionProgressIndicator.java:755)
com.intellij.codeInsight.completion.AsyncCompletion.lambda$null$0(CompletionThreading.java:87)
com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:877)
com.intellij.codeInsight.completion.AsyncCompletion.lambda$null$1(CompletionThreading.java:84)
com.intellij.openapi.progress.impl.CoreProgressManager$3.run(CoreProgressManager.java:179)
com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:568)
com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:519)
com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)
com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:164)
com.intellij.codeInsight.completion.AsyncCompletion.lambda$startThread$2(CompletionThreading.java:82)
com.intellij.openapi.application.impl.ApplicationImpl$2.run(ApplicationImpl.java:309)
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745)

[KronicDeth]

I'm guessing the problem is the leading w, which makes the grammar see it as a variable. This is a true bug since it's obvious that one can enter a lower case variable in that location when editing even though it's not valid grammar for Elixir.

Explanation of error text

IntellijIdeaRulezzz is the temporary text that OpenAPI inserts for completion so that there is always text to complete. The way completion works, an entire copy of the file is generated with the completion text put in place.