import type { ASTNode, Location } from 'graphql';
import { ProjectSource } from '../../project/source.js';
export declare class SourcePosition {
    readonly offset: number;
    readonly line: number;
    readonly column: number;
    /**
     * @param {number} offset the zero-based character offset within the source
     * @param {number} line the one-based line number
     * @param {number} column the one-based column number
     */
    constructor(offset: number, line: number, column: number);
}
export type LocationLike = MessageLocation | Location | ASTNode;
export declare class MessageLocation {
    readonly _start: SourcePosition | number;
    readonly _end: SourcePosition | number;
    readonly sourceName: string;
    readonly source: ProjectSource;
    constructor(source: string | ProjectSource, _start: SourcePosition | number, _end: SourcePosition | number);
    static from(location: LocationLike | undefined): MessageLocation | undefined;
    static fromGraphQLLocation(loc: Location): MessageLocation;
    get start(): SourcePosition;
    get end(): SourcePosition;
    toString(): string;
}
export declare function isASTNode(obj: LocationLike): obj is ASTNode;
/**
 * Gets the location of a part of a string value, e.g. of a segment in a field path
 *
 * Works with GraphQL string values (including block strings), and with the locations of JSON and
 * YAML values in a pathLocationMap (quoted or not, and including the key for YAML map entries). If
 * the offsets can't be mapped to the source (e.g. because of escape sequences), the location of
 * the whole string is returned.
 *
 * @param node the string value
 * @param offset the offset of the part within the value
 * @param length the length of the part
 */
export declare function locationWithinStringArgument(node: LocationLike, offset: number, length: number): MessageLocation | undefined;