TypeScriptのInterfaceでStaticなクラスメソッドを適用させる方法

            
            //👇通常のimplementでclassに実装させるinterface
interface IInstance {
    instanceId: number;
    instanceName: string;
    instanceMethod(): void;
}

//👇Staticなメソッドと自己インスタンス化(new)を担当するコンストラクタの代役的interface
interface IStatic {
    new(instanceId: number, instanceName: string): IInstance;
    staticMethod(msg: string): void;
}

const HogeClass: IStatic = class HogeClass implements IInstance {
    instanceId: number;
    instanceName: string;
    constructor(instanceId: number, instanceName: string){
        this.instanceId = instanceId;
        this.instanceName = instanceName;
    }

    instanceMethod(){
        console.log(`Hello ${this.instanceName} of ID#${this.instanceId} Who Called from Instance Method in TS Class!`);
    }

    static staticMethod(msg: string) {
        console.log(msg);
    }
};

//👇通常のクラスメソッドの呼び出し
(new HogeClass(1, 'Hoge')).instanceMethod();

//👇スタティッククラスも利用可
HogeClass.staticMethod('Hello Somebody Who Called from Static Method in TS Class!');
        

            
            Hello Hoge of ID#1 Who Called from Instance Method in TS Class!
Hello Somebody Who Called from Static Method in TS Class!
        

            
            {
    //...中略
    "compilerOptions": {
        //...中略
        "experimentalDecorators": true
    }
}
        

            
            //👇クラスデコレータの実装
function staticImplements<T>() {
    return <U extends T>(constructor: U) => {constructor};
}

interface IStatic {
    staticMethod(msg: string): void;
}

@staticImplements<IStatic>()
class HogeClass {
    public static staticMethod(msg: string) {
        console.log(msg);
    }
}

HogeClass.staticMethod('Hello, Static Method in TS class!');
        

            
            Hello, Static Method in TS class!