microsoft / microsoft/TypeScript
Incorrect TS1111 when using private generator function in JS
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描述
### 🔎 Search Terms
An error TS1111 is raised when (properly) using a private generator function. I'm using VSCode, and it will report `Private field '#iterate' must be declared in an enclosing class.` when calling `child.#iterate()`.
### 🕗 Version & Regression Information
- I'm hitting this in VSCode 1.135.0
### 💻 Code
```js
class Foo {
*iterate() {
yield* this.#iterate()
}
*#iterate() {
const child = this.child
if (child instanceof this.constructor) {
yield* child.#iterate()
}
}
}
let f = new Foo()
for (const i of f.iterate()) {
}
```
### 🙁 Actual behavior
An error TS1111 is raised.
### 🙂 Expected behavior
There should be no error.
### Additional information about the issue
1. The error disappears if I call `this.#iterate()`, but of course that's not the point.
2. I can also clear the error by adding `assert(#iterate in child)` before the call
贡献指南
调研方向
未指定源文件或测试。首先在 VSCode 1.135.0 中从提供的 private-generator 示例重现 TS1111 诊断,然后跟踪编译器针对 `child.#iterate()` 调用的私有字段检查。示例不再产生错误,并且回归测试覆盖有效访问后,即表示完成。
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- 技术栈
- javascript, typescript
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- compilers
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- 缺陷
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