/// <reference types="node" />
import * as events from 'events';
import type Engine from '..';
import type AppExecutor from './app_executor';
import ExecWrapper from './exec_wrapper';
import { OutputDelegate } from './exec_wrapper';
export default class RuleExecutor extends events.EventEmitter {
    engine: Engine;
    app: AppExecutor;
    private _output;
    private _env;
    private _tt;
    private _finished;
    private _finishPromise;
    constructor(engine: Engine, app: AppExecutor, compiled: (env: ExecWrapper) => Promise<unknown>, output: OutputDelegate);
    private _ruleThread;
    start(): void;
    waitFinished(): Promise<void>;
    end(): Promise<void>;
    stop(): void;
}