NapCatQQ/packages/napcat-common/src/proxy-handler.ts

import { LogWrapper } from '@/napcat-common/log';

export function proxyHandlerOf (logger: LogWrapper) {
  return {
    get (target: any, prop: any, receiver: any) {
      if (typeof target[prop] === 'undefined') {
        // 如果方法不存在，返回一个函数，这个函数调用existentMethod

        return (..._args: unknown[]) => {
          logger.logDebug(`${target.constructor.name} has no method ${prop}`);
        };
      }
      // 如果方法存在，正常返回
      return Reflect.get(target, prop, receiver);
    },
  };
}

export function proxiedListenerOf<T extends object> (listener: T, logger: LogWrapper) {
  return new Proxy<T>(listener, proxyHandlerOf(logger));
}