if (parentData == null) {
                currentData = superData;
            } else if (!parentIds.add(parentData.id())) {
                StringBuilder message = new StringBuilder("The parents form a cycle: ");
                for (String parentId : parentIds) {
                    message.append(parentId).append(" -> ");
                }
                message.append(parentData.id());

        final List<Vertex> parents = new ArrayList<>();

        Vertex(String label) {
            this.label = label;
        }

        String getLabel() {
            return label;
        }

        List<Vertex> getChildren() {
            return children;
        }

        List<Vertex> getParents() {
            return parents;
        }
    }

import org.jetbrains.kotlin.platform.has
import org.jetbrains.kotlin.platform.jvm.JvmPlatform
import org.jetbrains.kotlin.psi
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.psi.psiUtil.parents
import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment

internal class KtFirSymbolContainingDeclarationProvider(
    override val analysisSession: KtFirAnalysisSession,
    override val token: KtLifetimeToken,

    // or containing declaration is inside the local type, e.g., a member of the local class
    return localPsi == context ||
            localPsi.parents.any { it == context } ||
            context.parents.any { it == localPsi }
}

private fun ConeKotlinType.asPsiTypeElement(
    session: FirSession,
    mode: TypeMappingMode,
    useSitePosition: PsiElement,

	if err = checkPathLength(dirPath); err != nil {
		return err
	}

	if err = reliableRemoveAll(dirPath); err != nil {
		switch {
		case isSysErrNotDir(err):
			// File path cannot be verified since one of
			// the parents is a file.
			return errFileAccessDenied
		case isSysErrPathNotFound(err):
			// This is a special case should be handled only for
			// windows, because windows API does not return "not a

                                    .getProject();
                        } catch (ProjectBuildingException e) {
                            // MNG-4488 where let invalid parents slide on by
                            if (logger.isDebugEnabled()) {
                                // Message below is checked for in the MNG-2199 core IT.

            goToNthParent(symbol, goBackSteps)?.let { return it }
        }

        return getPackageSymbolIfPackageExists(selectedFqName)
    }

    /**
     * N.B. Works only for [KtClassOrObjectSymbol] parents chain.
     */
    private fun KtAnalysisSession.goToNthParent(symbol: KtDeclarationSymbol, steps: Int): KtDeclarationSymbol? {
        var currentSymbol = symbol

        repeat(steps) {

            else -> unexpectedElementError<PsiElement>(type)
        } ?: unexpectedElementError<PsiElement>(type)

        val ktTypeElementFromFirType = unwrapType(fir.psi)

        val classifiersToSkip = expression.parents.takeWhile { it != ktTypeElementFromFirType }.count()
        var classifier: FirClassLikeSymbol<*>? = fir.type.toRegularClassSymbol(session)
        repeat(classifiersToSkip) {

		return nil, osErrToFileErr(err)
	}

	w, err := OpenFile(filePath, mode, 0o666)
	if err != nil {
		// File path cannot be verified since one of the parents is a file.
		switch {
		case isSysErrIsDir(err):
			return nil, errIsNotRegular
		case osIsPermission(err):
			return nil, errFileAccessDenied
		case isSysErrNotDir(err):