/**
 * Adapter to ensure language-service always works with old AST format
 */
import type * as AST from '@rcs-lang/ast';
import { type ASTNode } from './ast-compatibility.js';
/**
 * Wraps any function that expects old AST to handle new AST
 */
export declare function wrapASTFunction<T extends (...args: any[]) => any>(fn: T, astArgIndex?: number): T;
/**
 * Ensures AST is in old format
 */
export declare function ensureOldAST(ast: any): ASTNode;
/**
 * Type guard to check if value is new AST
 */
export declare function isNewAST(value: any): value is AST.RclFile;
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