import { DependencyIdentifier } from './dependencyIdentifier';
import { Self, SkipSelf } from './dependencyLookUp';
import { Many, Optional } from './dependencyQuantity';
import { WithNew } from './dependencyWithNew';
export interface Ctor<T> {
    new (...args: any[]): T;
    name: string;
}
export declare function isCtor<T>(thing: unknown): thing is Ctor<T>;
export interface DependencyItemHooks<T> {
    onInstantiation?: (instance: T) => void;
}
export interface ClassDependencyItem<T> extends DependencyItemHooks<T> {
    useClass: Ctor<T>;
    lazy?: boolean;
}
export declare function isClassDependencyItem<T>(thing: unknown): thing is ClassDependencyItem<T>;
export type FactoryDepModifier = typeof Self | typeof SkipSelf | typeof Optional | typeof Many | typeof WithNew;
export type FactoryDep<T> = [...FactoryDepModifier[], DependencyIdentifier<T>] | DependencyIdentifier<T>;
export interface FactoryDependencyItem<T> extends DependencyItemHooks<T> {
    useFactory: (...deps: any[]) => T;
    dynamic?: true;
    deps?: FactoryDep<any>[];
}
export declare function isFactoryDependencyItem<T>(thing: unknown): thing is FactoryDependencyItem<T>;
export interface ValueDependencyItem<T> extends DependencyItemHooks<T> {
    useValue: T;
}
export declare function isValueDependencyItem<T>(thing: unknown): thing is ValueDependencyItem<T>;
/**
 * Reuse an existing dependency. You can consider it as an alias to another dependency.
 */
export interface ExistingDependencyItem<T> extends DependencyItemHooks<T> {
    /**
     * The identifier of the existing dependency.
     */
    useExisting: DependencyIdentifier<T>;
}
export declare function isExistingDependencyItem<T>(thing: unknown): thing is ExistingDependencyItem<T>;
export interface AsyncDependencyItem<T> extends DependencyItemHooks<T> {
    useAsync: () => Promise<T | Ctor<T> | [DependencyIdentifier<T>, SyncDependencyItem<T>]>;
}
export declare function isAsyncDependencyItem<T>(thing: unknown): thing is AsyncDependencyItem<T>;
export declare const AsyncHookSymbol: unique symbol;
export interface AsyncHook<T> {
    __symbol: typeof AsyncHookSymbol;
    whenReady(): Promise<T>;
}
export declare function isAsyncHook<T>(thing: unknown): thing is AsyncHook<T>;
export type SyncDependencyItem<T> = ClassDependencyItem<T> | FactoryDependencyItem<T> | ExistingDependencyItem<T> | ValueDependencyItem<T>;
export type DependencyItem<T> = SyncDependencyItem<T> | AsyncDependencyItem<T>;
export declare function prettyPrintIdentifier<T>(id: DependencyIdentifier<T>): string;