import { Node } from "./model";
import { walk } from "../traversing/structurally";
import { Issue } from "../validation";
declare module './model' {
    interface Node {
        /**
         * Finds the first node that satisfies a condition among this node's descendants.
         * @param predicate the function expressing the condition that the node must satisfy.
         * @param walker the function that generates the nodes to operate on in the desired sequence. By default, this
         * is a depth-first traversal that includes the node on which find() has been called.
         * @return the first node in the AST for which the predicate is true. Returns undefined if none are found.
         */
        find(predicate: (n: Node, index: number) => boolean, walker?: typeof walk): Node | undefined;
        hasValidParents(parent?: Node): boolean;
        invalidPositions(): Generator<Node>;
    }
}
/**
 * Finds the first node that satisfies a condition among a node's descendants.
 * @param startingNode the node which is the root of the subtree.
 * @param predicate the function expressing the condition that the node must satisfy.
 * @param walker the function that generates the nodes to operate on in the desired sequence. By default, this is a
 * depth-first traversal that includes the starting node.
 * @return the first node in the AST for which the predicate is true. Returns undefined if none are found.
 */
export declare function find(startingNode: Node, predicate: (n: Node, index: number) => boolean, walker?: typeof walk): Node | undefined;
/**
 * Sets or corrects the parent of all AST nodes.
 * Kolasu does not see set/add/delete operations on the AST nodes,
 * so this function should be called manually after modifying the AST.
 */
export declare function assignParents(node: Node): void;
export declare class CodeProcessingResult<D> {
    readonly code: string;
    readonly data: D | undefined;
    readonly issues: Issue[];
    constructor(code: string, data: D | undefined, issues: Issue[]);
    get correct(): boolean;
}