## 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.

      if (exception == null) {
        exception = ioe
      }
    }
  }
  if (exception != null) {
    throw exception
  }
}

internal fun <E> MutableList<E>.addIfAbsent(element: E) {
  if (!contains(element)) add(element)
}

internal fun Exception.withSuppressed(suppressed: List<Exception>): Throwable =
  apply {
    for (e in suppressed) addSuppressed(e)
  }

            token,
        )
    }

    override fun analyze(elements: List<KtElement>, mode: Fe10AnalysisFacade.AnalysisMode): BindingContext {
        val element = elements.firstOrNull() ?: return BindingContext.EMPTY
        return getHandler(element).resolveSession.orThrowResolutionNotPerformedError().bindingContext
    }

            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.utils.exceptions.withPsiEntry

object KtFirReferenceResolver : ResolveCache.PolyVariantResolver<KtReference> {
    class KotlinResolveResult(element: PsiElement) : PsiElementResolveResult(element)

    @OptIn(KtAllowAnalysisOnEdt::class, KtAllowAnalysisFromWriteAction::class)
    override fun resolve(ref: KtReference, incompleteCode: Boolean): Array<ResolveResult> {

    override val token: KtLifetimeToken,
) : KtDiagnosticProvider(), KtFirAnalysisSessionComponent {

    override fun getDiagnosticsForElement(
        element: KtElement,
        filter: KtDiagnosticCheckerFilter
    ): Collection<KtDiagnosticWithPsi<*>> {
        return element.getDiagnostics(firResolveSession, filter.asLLFilter()).map { it.asKtDiagnostic() }
    }

    }

    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)

      }
    }

    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,

) : KtArrayAccessReference(expression), KtFirReference {
    override fun KtAnalysisSession.resolveToSymbols(): Collection<KtSymbol> {
        check(this is KtFirAnalysisSession)
        val fir = element.getOrBuildFir(firResolveSession) ?: return emptyList()
        return when (fir) {
            is FirFunctionCall -> fir.getCandidateSymbols().map { it.fir.buildSymbol(firSymbolBuilder) }