import { AnyInjectIdentifier } from '../types/inject-identifier.type';
/**
 * A set of configuration options for a dependency of a service.
 */
export interface ServiceDependencyOptions {
    /**
     * The mode of the dependency.
     * This is set with the use of the bit-flag helpers, such as {@link Optional}.
     *
     * @example
     * An example of this option can be seen below:
     * ```ts
     * @Service([
     *   DatabaseService,
     *   [TaskWorkerService, Optional() | Self()]
     * ])
     * export class RootService { }
     * ```
     *
     * @see {@link Optional}
     * @see {@link Many}
     * @see {@link SkipSelf}
     * @see {@link Self}
     * @see {@link ResolutionConstraintFlag}
     */
    mode?: number;
}
/**
 * A tuple containing a service identifier, along with a set of options for said dependency.
 */
export type DependencyPairWithConfiguration = readonly [AnyInjectIdentifier, number] | readonly [AnyInjectIdentifier, ServiceDependencyOptions];
/**
 * In the context of the Service decorator, any item in the dependencies array can either
 * be an injectable identifier (which is assumed to resolve in the current scope), or a
 * two-item tuple, containing both the identifier and a set of options.
 */
export type AnyServiceDependency = DependencyPairWithConfiguration | AnyInjectIdentifier;