import type { createRequire } from 'node:module';
export type BrowserRuntimeDefaultExportPolicy = 'emit-default' | 'skip-default';
type RequireFromRoot = ReturnType<typeof createRequire>;
/**
 * Resolves a package specifier to its ESM entry file path from the app root.
 */
export declare function resolvePackageEsmEntryPath(specifier: string, rootDir: string): string | undefined;
/**
 * Builds a relative import path from a generated runtime entry file to a resolved module path.
 */
export declare function toRelativeEntryImport(entryDir: string, resolvedPath: string): string;
/**
 * Resolves a browser runtime entry import to an ESM file path when possible.
 *
 * @remarks
 * `createRequire().resolve()` follows the `require` export condition and can
 * land on `.cjs` entrypoints. Browser vendor bundles then emit runtime
 * `require()` calls for React externals. Prefer Node's ESM resolver first, then
 * a `.cjs` → `.js` sibling fallback.
 */
export declare function resolveBrowserRuntimeEntryImport(options: {
    specifier: string;
    requireFromRoot: RequireFromRoot;
    entryDir: string;
    rootDir: string;
}): string;
/**
 * Decides whether a generated runtime entry should re-export a default binding.
 *
 * @remarks
 * ESM-only packages such as `@tanstack/react-query` expose named exports only.
 * Legacy CJS packages such as `react` assign `module.exports` directly and have
 * no `.default` under `require()`, but still need a default re-export for
 * `import React from 'react'` in browser bundles.
 *
 * ESM source inspection is a best-effort fast path; when it is inconclusive the
 * policy falls back to the shape returned by `require()`.
 */
export declare function inferBrowserRuntimeDefaultExportPolicy(options: {
    specifier: string;
    requireFromRoot: RequireFromRoot;
    rootDir: string;
}): BrowserRuntimeDefaultExportPolicy;
/**
 * Reads the named runtime exports that should be re-exported from a generated runtime entry module.
 *
 * @remarks
 * Default exports are handled separately because generated runtime entry files need to emit a
 * synthetic default binding only when the caller explicitly asks for it.
 */
export declare function listBrowserRuntimeModuleExportNames(specifier: string, requireFromRoot: RequireFromRoot): string[];
export {};