import type $RefParser from "../index.js";
import type { ParserOptions } from "../index.js";
import type { JSONSchema } from "../index.js";
export type JSONParserErrorType = "EUNKNOWN" | "EPARSER" | "EUNMATCHEDPARSER" | "ETIMEOUT" | "ERESOLVER" | "EUNMATCHEDRESOLVER" | "EMISSINGPOINTER" | "EINVALIDPOINTER";
/**
 * Custom JSON serializer for Error objects.
 * Returns all built-in error properties, as well as extended properties.
 */
export declare function toJSON<T extends Error>(this: T): Error & T;
/**
 * Returns own, inherited, enumerable, non-enumerable, string, and symbol keys of `obj`.
 * Does NOT return members of the base Object prototype, or the specified omitted keys.
 */
export declare function getDeepKeys(obj: object, omit?: Array<string | symbol>): Set<string | symbol>;
export declare class JSONParserError extends Error {
    readonly name: string;
    readonly message: string;
    source: string | undefined;
    path: Array<string | number> | null;
    readonly code: JSONParserErrorType;
    constructor(message: string, source?: string);
    toJSON: () => Error;
    get footprint(): string;
}
export declare class JSONParserErrorGroup<S extends object = JSONSchema, O extends ParserOptions<S> = ParserOptions<S>> extends Error {
    files: $RefParser<S, O>;
    constructor(parser: $RefParser<S, O>);
    toJSON: () => Error;
    static getParserErrors<S extends object = JSONSchema, O extends ParserOptions<S> = ParserOptions<S>>(parser: $RefParser<S, O>): JSONParserError[];
    get errors(): Array<JSONParserError | InvalidPointerError | ResolverError | ParserError | MissingPointerError | UnmatchedParserError | UnmatchedResolverError>;
}
export declare class ParserError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    constructor(message: any, source: any);
}
export declare class UnmatchedParserError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    constructor(source: string);
}
export declare class ResolverError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    ioErrorCode?: string;
    constructor(ex: Error | any, source?: string);
}
export declare class UnmatchedResolverError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    constructor(source: any);
}
export declare class MissingPointerError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    targetToken: any;
    targetRef: string;
    targetFound: string;
    parentPath: string;
    constructor(token: any, path: any, targetRef: any, targetFound: any, parentPath: any);
}
export declare class TimeoutError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    constructor(timeout: number);
}
export declare class InvalidPointerError extends JSONParserError {
    code: JSONParserErrorType;
    name: string;
    constructor(pointer: string, path: string);
}
export declare function isHandledError(err: any): err is JSONParserError;
export declare function normalizeError(err: any): any;