import { type ExistingRawSourceMap } from 'rolldown';
export type SystemJsOutputFormat = 'system-register' | 'commonjs-registration';
export type SystemJsReferenceKind = 'static' | 'dynamic';
export type TransformSystemJsOptions = Readonly<{
    /** Final JavaScript emitted by Rolldown with ES module syntax still present. */
    code: string;
    filename: string;
    format: SystemJsOutputFormat;
    sourcemap: boolean;
    /** Converts physical Rolldown references into the logical IDs used by the Mini capsule registry. */
    resolveReference(reference: string, kind: SystemJsReferenceKind): string;
}>;
export type TransformSystemJsResult = Readonly<{
    code: string;
    map: ExistingRawSourceMap | null;
}>;
/**
 * Converts one final Rolldown ES chunk into System.register data without rebuilding its complete AST through Babel.
 *
 * The compiler intentionally accepts Rolldown's normalized final-chunk grammar rather than arbitrary source modules. Every
 * unsupported module declaration fails before source edits begin, so a future Rolldown output change cannot be miscompiled.
 */
export declare function transformSystemJs(options: TransformSystemJsOptions): TransformSystemJsResult;