import { Node } from "./cst/Node";
export declare enum VisitorAction {
    /** Return from visitor function to skip iterating over child nodes. */
    SKIP = 1
}
/**
 * A map with a visitor function for each Node type, like:
 *
 *     { select_clause: (node: SelectClause) => {},
 *       from_clause: (node: FromClause) => {},
 *       paren_expr: (node: ParenExpr) => {},
 *       ... }
 */
export type FullVisitorMap = {
    [K in Node["type"]]: (node: Extract<Node, {
        type: K;
    }>) => VisitorAction | void;
};
/**
 * Creates a function that visits the whole syntax tree.
 * @param map An object with a visitor functions
 */
export declare function cstVisitor(map: Partial<FullVisitorMap>): (node: Node) => void;