import { ReferenceSpec } from "./InterfaceSpec";
import { ReadonlyServiceLookup } from "./ServiceLookup";
import { ServiceRepr } from "./ServiceRepr";
export interface DependencyOptions {
    /**
     * All services known to the service layer.
     */
    services?: readonly ServiceRepr[];
    /**
     * References that must be satisfied by the services.
     */
    requiredReferences?: readonly RequiredReference[];
}
export type RequiredReference = UIDependency | FrameworkDependency;
export type UIDependency = {
    type: "ui";
    packageName: string;
} & ReferenceSpec;
export type FrameworkDependency = {
    type: "framework";
} & ReferenceSpec;
export type ComputedServiceDependencies = Record<string, ServiceRepr | ServiceRepr[]>;
export interface VerifyDependenciesResult {
    /**
     * Precomputed dependencies for every service.
     *
     * Key: service id.
     */
    serviceDependencies: Map<string, ComputedServiceDependencies>;
    /**
     * Index structure mapping interface names to service instances.
     */
    serviceLookup: ReadonlyServiceLookup;
}
/**
 * Visits all services and ensures that their dependencies can be satisfied by each other without a cycle.
 *
 * Throws an error if a cycle is detected or if a required service is never implemented.
 *
 * @returns an object containing the service index and precomputed dependency information
 */
export declare function verifyDependencies(options: DependencyOptions): VerifyDependenciesResult;