/**
 * Code Action Provider for DomainLang.
 *
 * Provides quick-fix code actions for validation diagnostics.
 *
 * Key Features:
 * - "Add dependency to model.yaml" for unknown import aliases
 * - "Run dlang install" for uninstalled dependencies
 *
 * @module
 */
import type { CodeAction, CodeActionParams, Command } from 'vscode-languageserver';
import type { MaybePromise, LangiumDocument } from 'langium';
import type { CodeActionProvider } from 'langium/lsp';
/**
 * Code action provider for DomainLang LSP features.
 *
 * Implements quick fixes for:
 * - Import validation errors (add to model.yaml, run install)
 */
export declare class DomainLangCodeActionProvider implements CodeActionProvider {
    /**
     * Generates code actions for the given diagnostics.
     *
     * @param document - The document containing the diagnostics
     * @param params - Code action request parameters including diagnostics
     * @returns Array of code actions, or undefined if none applicable
     */
    getCodeActions(document: LangiumDocument, params: CodeActionParams): MaybePromise<Array<Command | CodeAction> | undefined>;
    /**
     * Creates code actions for a specific diagnostic.
     *
     * Matches on diagnostic.code to determine which quick fix to offer.
     */
    private createCodeActions;
    /**
     * Creates a code action to add a dependency to model.yaml.
     *
     * This generates a WorkspaceEdit that modifies model.yaml to add
     * the missing dependency with a placeholder version.
     */
    private createAddToManifestAction;
    /**
     * Creates a code action to create model.yaml with the dependency.
     */
    private createCreateManifestAction;
    /**
     * Creates a code action to run dlang install.
     */
    private createRunInstallAction;
    /**
     * Creates a code action to add ref to dependency.
     */
    private createAddRefAction;
}