import EmitterListener, { EmitMessage, EmittedMessage, HandlerFunction } from './emitterListener';
export interface ConstructorOptions {
    wildcardOne?: string;
    wildcardSome?: string;
    separator?: string;
    concurrency?: number;
    cacheAdds?: boolean;
}
export interface IteratorEmittedMessage<TContext> {
    message: EmittedMessage;
    context?: TContext;
}
export interface IteratorResult<T> {
    done: boolean;
    value: T;
}
export interface Iterator<T> {
    next(value?: any): IteratorResult<T>;
    return?(value?: any): IteratorResult<T>;
    throw?(e?: any): IteratorResult<T>;
}
declare class Emitter {
    private _matcher;
    private _concurrency;
    private _listenerMap;
    constructor({ wildcardOne, wildcardSome, separator, concurrency, // not used for now
    cacheAdds, }?: ConstructorOptions);
    private _removeListener;
    emit(options: EmitMessage): Promise<void>;
    addListener<TContext>(topic: string, handler: HandlerFunction<TContext>, context?: TContext, once?: boolean): EmitterListener;
    hasListener<TContext>(listenerId: string): boolean;
    hasListener<TContext>(listener: EmitterListener): boolean;
    hasListener<TContext>(topic: string, handler: HandlerFunction<TContext>): boolean;
    hasListener<TContext>(topic: string, handler: HandlerFunction<TContext>, context: TContext): boolean;
    removeListener<TContext>(listenerId: string): void;
    removeListener<TContext>(listener: EmitterListener): void;
    removeListener<TContext>(topic: string, handler: HandlerFunction<TContext>): void;
    removeListener<TContext>(topic: string, handler: HandlerFunction<TContext>, context: TContext): void;
    removeAllListeners(topic: string): void;
    on<TContext>(topic: string, handler: HandlerFunction<TContext>, context?: TContext): EmitterListener;
    once<TContext>(topic: string, handler: HandlerFunction<TContext>, context?: TContext): EmitterListener;
    off<TContext>(topic: string, handler: HandlerFunction<TContext>): void;
    off<TContext>(topic: string, handler: HandlerFunction<TContext>, context: TContext): void;
}
export default Emitter;
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