/**
 * PositionContext backed by compiler OffsetIndex via N-API (`offsetIndexLineCol`).
 * `@vmz/diagnostic` stays free of a native dependency — hosts wire this helper.
 */
export type LineCol = {
    line: number;
    column: number;
};
export type PositionContext = {
    lineCol(offset: number): LineCol;
};
/**
 * Build a diagnostic PositionContext for `sourceText` using the native OffsetIndex.
 */
export declare function createPositionContext(sourceText: string): PositionContext;