https://github.com/uid11/jsdocparsingmode-error-example

jsDocParsingMode error example
https://github.com/uid11/jsdocparsingmode-error-example

Last synced: about 2 months ago
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jsDocParsingMode error example

• Host: GitHub
• URL: https://github.com/uid11/jsdocparsingmode-error-example
• Owner: uid11
• Created: 2023-11-21T03:19:34.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-11-22T11:46:05.000Z (over 2 years ago)
• Last Synced: 2025-02-23T02:20:03.024Z (over 1 year ago)
• Language: TypeScript
• Size: 1000 Bytes
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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# jsDocParsingMode + exactOptionalPropertyTypes error

It seems that in the TypeScript 5.3.2 the `exactOptionalPropertyTypes: true` option leads

to an error in the `jsDocParsingMode` field type in the `node_modules/typescript/lib/typescript.d.ts` file.

TypeScript issue: https://github.com/microsoft/TypeScript/issues/56478.

# How to reproduce the error

Clone the repository locally.

```sh

npm install

npm run tsc

```

Error text:

```

node_modules/typescript/lib/typescript.d.ts:3287:24 - error TS2420: Class 'Project' incorrectly implements interface 'LanguageServiceHost'.

  Types of property 'jsDocParsingMode' are incompatible.

    Type 'JSDocParsingMode | undefined' is not assignable to type 'JSDocParsingMode'.

      Type 'undefined' is not assignable to type 'JSDocParsingMode'.

3287         abstract class Project implements LanguageServiceHost, ModuleResolutionHost {

                            ~~~~~~~

Found 1 error in node_modules/typescript/lib/typescript.d.ts:3287

```