import { type EagerRouteComponentFilesByEntry } from '@modern-js/utils';
export { collectRouteComponentFiles, type EagerRouteComponentFilesByEntry, normalizeModulePath, type RouteComponentFileCollection, } from '@modern-js/utils';
type ModuleLike = {
    resource?: string;
};
type LazyCompilationTestFn = (m: ModuleLike) => boolean;
/** Matches Rspack's `LazyCompilationOptions['test']`. */
type LazyCompilationTest = RegExp | LazyCompilationTestFn | undefined;
export type EagerRouteComponentInfo = {
    files: Set<string>;
    /** Specifiers that could not be resolved, keyed by entry name. */
    unresolvedByEntry: Map<string, string[]>;
};
/**
 * Aggregate the per-entry route component data (collected by the router plugin
 * during route generation and threaded in as
 * `BuilderOptions.eagerRouteComponentFilesByEntry`) into the flat shape
 * {@link planSSRLazyCompilation} expects: one Set of all route files plus the
 * unresolved specifiers keyed by entry.
 */
export declare function aggregateEagerRouteComponentFiles(byEntry: EagerRouteComponentFilesByEntry | undefined): EagerRouteComponentInfo;
/**
 * Build a `lazyCompilation.test` that forces route component modules to compile
 * eagerly (so SSR first-screen chunk/CSS injection has the assets it needs at
 * render time), while delegating all other modules to the user's `test`
 * (defaulting to lazy when the user did not provide one).
 */
export declare function buildSSRLazyCompilationTest(eagerRouteFiles: Set<string>, userTest?: LazyCompilationTest): LazyCompilationTestFn;
export type SSRLazyPlan = {
    apply: false;
    unresolvedByEntry?: Map<string, string[]>;
} | {
    apply: true;
    lazyCompilation: Record<string, unknown>;
};
/**
 * Decide whether to apply the route-eager lazy compilation for an SSR project.
 * Checks unresolved route components FIRST: if any exist we cannot guarantee
 * they are eager, so we skip the optimization (and surface them so the caller
 * can warn) rather than silently leaving a route lazy. `current` is the
 * existing `dev.lazyCompilation` value (lazy must be enabled for this to apply).
 */
export declare function planSSRLazyCompilation(current: unknown, info: EagerRouteComponentInfo): SSRLazyPlan;