Question

需要与Inversify相关的实施方面的帮助。我正在创建一个从节点扩展EventEmitter的类。当我尝试使用反转时，它说EventEmitter不可注射。以下是示例代码

//接口

export interface ISubscriber {
Connect(callback: Function);
on(event: string, listener: Function): this;
emit(event: string, ...args: any[]): boolean;
}

//类

import {EventEmitter} from 'events';


@injectable()
class Subscriber extends EventEmitter implements ISubscriber {
logProvider: SCLogging.ILogger;
public constructor(
    @inject(TYPES.ILogger) logProvider: SCLogging.ILogger,
    @inject(TYPES.IConfig) config: IConfig
) {
    super();
    //Some Implementation
}

public Connect(callback) {
//Some Implementation
}

public on(event: string, listener: Function): this {
    super.on(event, listener);
    return this;
}

public emit(event: string, ...args: any[]): boolean {
    return super.emit(event, ...args);
}
}
export { ISubscriber, Subscriber }

//定义绑定

kernel.bind<SCLogging.ILogger>(TYPES.ILogger).to(Logger);
kernel.bind<IConfig>(TYPES.IConfig).to(Config);
kernel.bind<ISubscriber>(TYPES.ISubscriber).to(Subscriber);

我收到错误

Error: Missing required @injectable annotation in: EventEmitter.

Answer 1

一个非常类似的问题已经answered on the InversifyJS issues on Github：

您可以使用decorate函数调用装饰器：
import { decorate, injectable } from "inversify";
decorate(injectable(), ClassName)
查看https://github.com/inversify/InversifyJS/blob/master/wiki/basic_js_example.md了解详情。

请参阅Github上的问题以获取更多信息。

Answer 2

在容器选项中设置skipBaseClassChecks: true会禁用逆转的“功能”。

有关更多详细信息，请参见此PR https://github.com/inversify/InversifyJS/pull/841

InversifyJS：注入扩展非注入外部模块的类

2 个答案: