import { ASTNode, Location } from 'graphql';
import { ProjectSource } from '../../project/source';
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;
export declare function locationWithinStringArgument(node: LocationLike, offset: number, length: number): MessageLocation | undefined;