typescript中装饰器的别名

// 定义一个装饰器的别名
const logDecorator = (target: any, propertyKey: string, descriptor: PropertyDescriptor) => {
  const originalMethod = descriptor.value;

  // 修改原始方法的行为
  descriptor.value = function(...args: any[]) {
    console.log(`Calling method ${propertyKey} with arguments: ${JSON.stringify(args)}`);
    const result = originalMethod.apply(this, args);
    console.log(`Method ${propertyKey} returned: ${result}`);
    return result;
  };

  return descriptor;
};

class MyClass {
  @logDecorator
  greet(name: string) {
    return `Hello, ${name}!`;
  }
}

const instance = new MyClass();
instance.greet("Alice"); // 调用带装饰器的方法