/**
 * Custom DocumentSymbolProvider for DomainLang.
 *
 * Extends Langium's DefaultDocumentSymbolProvider to add meaningful
 * `detail` text to outline items, improving the Outline view, breadcrumbs,
 * and Go to Symbol experience.
 *
 * The default provider handles the full AST walk, child nesting, and
 * range computation. We only override `getSymbol` to enrich the detail
 * property with DDD-relevant information (descriptions, visions, counts).
 *
 * @module lsp/domain-lang-document-symbol-provider
 */
import type { AstNode, LangiumDocument } from 'langium';
import { DocumentSymbol } from 'vscode-languageserver';
import { DefaultDocumentSymbolProvider } from 'langium/lsp';
/**
 * Enriches document symbols with DDD-specific detail text and grouping.
 *
 * Detail text shown in the Outline view next to each symbol:
 * - Domain: vision or description
 * - BoundedContext: description or domain name
 * - ContextMap: number of contained contexts
 * - DomainMap: number of contained domains
 * - Namespace: qualified namespace name
 * - Relationship: formatted endpoint summary (e.g., "OrderContext -> PaymentContext")
 *
 * Grouping: Creates synthetic folder nodes for collections in the grammar:
 * - BoundedContext: decisions, terminology, relationships, metadata
 *
 * Note: Relationship and MetadataEntry symbols are created manually (not via NameProvider)
 * to avoid polluting the global scope/reference system. These are display-only synthetic symbols.
 */
export declare class DomainLangDocumentSymbolProvider extends DefaultDocumentSymbolProvider {
    protected getSymbol(document: LangiumDocument, astNode: AstNode): DocumentSymbol[];
    /**
     * Override to add synthetic grouping folders for collections.
     * Groups decisions, terminology, relationships, and metadata under folder nodes.
     */
    protected getChildSymbols(document: LangiumDocument, astNode: AstNode): DocumentSymbol[] | undefined;
    /** Adds decisions folder if collection is non-empty. */
    private addDecisionsFolder;
    /** Adds terminology folder if collection is non-empty. */
    private addTerminologyFolder;
    /** Adds relationships folder with manually created symbols. */
    private addRelationshipsFolder;
    /** Adds metadata folder with manually created symbols. */
    private addMetadataFolder;
    /**
     * Creates a synthetic folder DocumentSymbol for grouping children.
     */
    private createFolderSymbol;
    /**
     * Creates a DocumentSymbol for a Relationship node.
     */
    private createRelationshipSymbol;
    /**
     * Creates a DocumentSymbol for a MetadataEntry node.
     */
    private createMetadataSymbol;
    /**
     * Returns DDD-specific detail text for a given AST node.
     * Shown alongside the symbol name in the Outline view.
     */
    private getDetailText;
    /** Builds BC detail: "BC for DomainName — description". */
    private getBcDetail;
    /** Returns "N item(s)" or undefined when count is 0. */
    private pluralize;
    /**
     * Formats a relationship as a compact detail string:
     * e.g., "OrderContext -> PaymentContext"
     */
    private formatRelationshipDetail;
    /**
     * Gets a display name from a BoundedContextRef.
     */
    private getRefName;
}