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• 类型

  interface Plugin {
    then: thenPluginFn || thenPluginFn[];
    execute: executePlugin || executePlugin[];
    chain: ChainPluginFn[];
  }
  
  type thenPluginFn = (unsubscribe: () => void) => void;
  
  type executePlugin = <T>(params: {
    result: Promise<T> | T;
    set: (setter: (state: T) => Promise<void> | void) => Promise<T> | T;
    root: boolean;
    onfulfilled?: OnFulfilled;
    onrejected?: OnRejected;
    unsubscribe: () => void;
  }) => Promise<any> | any;
  
  type ChainPluginFn<T extends Observable = Observable> = (observer: T) => Record<string, any>;