import { types as t } from "@marko/compiler";
declare module "@marko/compiler/dist/types" {
    interface ProgramExtra {
        needsCompat?: boolean;
        isInteractive?: boolean;
        hasClientStatement?: boolean;
        page?: boolean;
    }
}
interface EntryState {
    init: boolean;
    hasClientStatement: boolean;
    /** Whether a reached template lazily imports another. */
    lazy: boolean;
    /** Depth of enclosing templates whose modules the bundle already loads:
     * below a root everything arrives through its imports, and a lazy subtree
     * is loaded by its own load entry. */
    bundledDepth: number;
    /** Depth of enclosing lazy imports, whose load entries bring their assets. */
    lazyDepth: number;
    roots: string[];
    /** Assets of templates the bundle never loads; the entry imports them. */
    assets: Set<string>;
    /** Assets that arrive through a bundled template's imports; the entry
     * imports them itself only when it links nothing (a server only page). */
    bundledAssets: Set<string>;
    /** The most eager way each file has been reached. */
    visited: Map<string, Reach>;
}
/** How a file was reached: 0 eagerly, 1 below a bundled template, 2 only
 * within a lazy subtree. Lower is more eager, so `seen <= reach` means it was
 * already visited at least as eagerly and is skipped; a file reached more
 * eagerly than before is re-visited, since it may then own assets or a root. */
export type Reach = 0 | 1 | 2;
type EntryFile = t.BabelFile & {
    [kState]?: EntryState;
};
type VisitChild = (id: string, reach?: Reach) => void;
declare const kState: unique symbol;
declare const builder: {
    build(entryFile: EntryFile, exportInit?: boolean): t.Statement[];
    visit(file: t.BabelFile, entryFile: EntryFile, visitChild?: VisitChild): void;
};
export default builder;
export declare function assertVisited<S>(entryFile: t.BabelFile, state: S | undefined): asserts state is S;
export declare function createVisited(entryFile: t.BabelFile): Map<string, Reach>;
export declare function resolveRelativeToEntry(entryFile: t.BabelFile, file: t.BabelFile, req: string): string;
export declare function markReached(visited: Map<string, Reach>, resolved: string, reach: Reach): boolean;