CancelToken, Cancel 类型不正确

来源：10-3 -3 取消功能的设计和实现 - Cancel 类的实现及 axios 的扩展+ 额外逻辑实现

paopaomo

2020-08-03

Hi, 老师,编辑器提示axios.CancelToken 和 axios.Cancel 类型不正确,不知道为什么,麻烦老师帮忙解答下

编辑器提示
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对应的接口声明

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typescript 版本号
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总觉得是把 Canel 类当成接口书写的问题,但是看了文档,类是可以当做接口使用的,所以,就不大明白这个报错是什么了

import { Canceler, CancelExecutor, CancelTokenSource } from '../types';
import Cancel from './Cancel';

interface ResolvePromise {
  (reason?: Cancel): void;
}

export default class CancelToken {
  promise: Promise<Cancel>;
  reason?: Cancel;

  constructor(executor: CancelExecutor) {
    let resolvePromise: ResolvePromise;

    this.promise = new Promise<Cancel>(resolve => {
      resolvePromise = resolve;
    });

    executor(message => {
      if (this.reason) {
        return;
      }
      this.reason = new Cancel(message);
      resolvePromise(this.reason);
    });
  }

  static source(): CancelTokenSource {
    let cancel!: Canceler;
    const token = new CancelToken(c => {
      cancel = c;
    });
    return {
      token,
      cancel
    };
  }

  throwIfRequested() {
    if (this.reason) {
      throw this.reason;
    }
  }
}

麻烦老师啦

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