import type { FileSystem } from "../../platform/compat/fs.js";
/**
 * Bare builtins supported by Deno's Node compatibility layer.
 *
 * This intentionally stays separate from the Node-runtime list used by MDX:
 * Deno does not implement every `node:` module exposed by current Node.
 */
export declare const NODE_BUILTINS: readonly ["assert", "buffer", "child_process", "cluster", "console", "constants", "crypto", "dgram", "dns", "events", "fs", "http", "http2", "https", "module", "net", "os", "path", "perf_hooks", "process", "querystring", "readline", "stream", "string_decoder", "timers", "tls", "tty", "url", "util", "v8", "vm", "worker_threads", "zlib"];
export declare function readProjectDependenciesForRoute(projectDir: string, fs: Pick<FileSystem, "readTextFile">): Promise<Map<string, string>>;
export declare function getNodeExternalPackagesToResolveForRoute(userDeps: Map<string, string>): string[];
/** Location of an ESM-only user dependency, used to rewrite imports to real ES module URLs. */
export interface EsmDependencyLocation {
    /** file:// URL of the package's ESM entry point. */
    entryUrl: string;
    /** Absolute path of the package's root directory (used to contain subpath imports). */
    packageDir: string;
}
/**
 * Identify the subset of user dependencies that are ESM-only and resolve each
 * to file:// URLs so the compiled-binary loader can import them as real ES
 * modules instead of transpiling them to CommonJS. CJS dependencies are omitted
 * and continue to load through the `createRequire`-based shim.
 */
export declare function resolveEsmUserDependenciesForRoute(projectDir: string, fs: Pick<FileSystem, "readTextFile">, userDeps: Map<string, string>): Promise<Map<string, EsmDependencyLocation>>;
export declare function rewriteCompiledVeryfrontImportsForRoute(code: string): string;
export declare function rewriteCompiledUserDependencyImportsForRoute(code: string, userDeps: Map<string, string>, esmDeps?: Map<string, EsmDependencyLocation>): string;
export declare function rewriteDenoNpmDependencyImportsForRoute(code: string, projectDir: string, fs: Pick<FileSystem, "readTextFile">, userDeps: Map<string, string>): Promise<string>;
export declare function rewriteDenoNodeBuiltinsForRoute(code: string): string;
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