Microsoft/TypeScript

Unable to access ServiceWorkerGlobalScope via `self.`

Open

#14,877 创建于 2017年3月27日

在 GitHub 查看
 (42 评论) (63 反应) (0 负责人)TypeScript (48,455 star) (6,726 fork)batch import
BugDomain: lib.d.tsHelp Wanted

描述

Since ServiceWorker related types sit in lib.webworker.d.ts, webworker lib need to be added to tsconfig.json.

{
  "compilerOptions": {
    "lib": [
      "es2017",
      "webworker"
    ]
  }
}

But in current lib.webworker.d.ts, it declare var self: WorkerGlobalScope;, so we can't access ServiceWorkerGlobalScope via self.

TypeScript Version: 2.2.1

Expected behavior:

Can access ServiceWorkerGlobalScope via self.(like self.clients)

Actual behavior:

Access with error.

image

贡献者指南

技术栈
typescript
领域
frontendtooling
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
TypeScript basicsService Worker APIlib declaration files
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
The issue requests that `self` in `lib.webworker.d.ts` should be of type `ServiceWorkerGlobalScope` instead of just `WorkerGlobalScope` when the `webworker` lib is used. To fix, locate the declaration `declare var self: WorkerGlobalScope;` in `lib.webworker.d.ts` and change it to a proper conditional type or an overload that covers `ServiceWorkerGlobalScope`. Check the current version of the file to see if any changes have been made. Also review the discussion in the issue comments for any proposed approaches or objections. Note that TypeScript's lib files are auto generated, so a fix might need to be done in the upstream source.
Unable to access ServiceWorkerGlobalScope via `self.` · Microsoft/TypeScript#14877 | Good First Issue