return mapping[fir]?.getOrNull()
        }

        override fun visitElement(element: FirElement) {
            withElement(element) {
                if (element in statements) {
                    // The leaf is in mapping, but its value is still 'null'
                    mapping.computeIfAbsent(element) { _ ->
                        unmappedCount -= 1

            registerProvider provider@{ element: KtValueArgument ->
                if (element.isNamed()) return@provider null
                val annotationEntry = element.getParentOfTypeAndBranch<KtAnnotationEntry> { valueArgumentList } ?: return@provider null
                if (annotationEntry.valueArguments.size != 1) return@provider null

                KtDefaultAnnotationArgumentReference(element)
            }
        }
    }

import org.jetbrains.kotlin.kdoc.psi.impl.KDocName

internal class KtFirKDocReference(element: KDocName) : KDocReference(element), KtFirReference {
    override fun KtAnalysisSession.resolveToSymbols(): Collection<KtSymbol> {
        val fullFqName = generateSequence(element) { it.parent as? KDocName }.last().getQualifiedNameAsFqName()
        val selectedFqName = element.getQualifiedNameAsFqName()

    }

    private inline fun <R> wrapError(element: KtElement, action: () -> R): R {
        return try {
            action()
        } catch (e: Exception) {
            rethrowExceptionWithDetails(
                "Error during resolving call ${element::class}",
                exception = e,
            ) {
                withPsiEntry("psi", element, analysisSession::getModule)

## Composition by architecture modules

Each [architecture module and platform](platforms.md) can contribute code to any of the elements.
Not every module contributes to every element.

            collector.typesToShorten.distinctBy { it.element }.map { TypeToShortenInfo(it.element.createSmartPointer(), it.shortenedRef) },
            collector.qualifiersToShorten.distinctBy { it.element }.map { QualifierToShortenInfo(it.element.createSmartPointer(), it.shortenedRef) },
            collector.labelsToShorten.distinctBy { it.element }.map { ThisLabelToShortenInfo(it.element.createSmartPointer()) },

    override fun visitErrorElement(element: PsiErrorElement) {
        collectedDiagnostics += ConeSyntaxDiagnostic(element.errorDescription)
            .toFirDiagnostics(useSiteSession, KtRealPsiSourceElement(element), callOrAssignmentSource = null)
            .map { diagnosticConverter(it as KtPsiDiagnostic) }

        super.visitErrorElement(element)
    }

      }
    }

    override fun put(element: T) {
      taskRunner.lock.withLock {
        delegate.put(element)
        editCount++
      }
    }

    override fun iterator() = error("unsupported")

    override fun offer(e: T) = error("unsupported")

    override fun peek(): T = error("unsupported")

    override fun offer(
      element: T,
      timeout: Long,
      unit: TimeUnit,

        private fun throwUnexpectedElementError(element: FirBasedSymbol<*>): Nothing {
            errorWithAttachment("Unexpected ${element::class.simpleName}") {
                withFirSymbolEntry("firSymbol", element)
            }
        }

        private fun throwUnexpectedElementError(element: FirElement): Nothing {
            errorWithAttachment("Unexpected ${element::class.simpleName}") {

        )
    }

    private fun handleAsFunctionCall(context: BindingContext, element: KtElement): KtCallInfo? {
        return element.getResolvedCall(context)?.let { handleAsFunctionCall(context, element, it) }
    }

    private fun handleAsFunctionCall(
        context: BindingContext,
        element: KtElement,
        resolvedCall: ResolvedCall<*>,
        diagnostics: Diagnostics = context.diagnostics