ScriptKind.Deferred treated as LanguageVariant.Standard

🔎 Search Terms

Deferred ScriptKind TSX
Deferred ScriptKind Standard

Vue, eslint, tsx parser error

🕗 Version & Regression Information

Currently looking at TypeScript 5.5+ likely affects most versions of typescript.

⏯ Playground Link

No response

💻 Code

Not specific to TS code but compiler and parsing.

🙁 Actual behavior

When using typescript-eslint with there new projectSettings option, along side vue with tsx. The file fails to parse

Component.vue
41:8  error  Parsing error: '>' expected

Deferred ScriptKinds are treated as LanguageVariant.Standard rather than LanguageVariant.JSX

https://github.com/microsoft/TypeScript/blob/main/src/compiler/parser.ts#L1746
https://github.com/microsoft/TypeScript/blob/main/src/compiler/utilities.ts#L8832

🙂 Expected behavior

Under the assumption that ScriptKind.Deferred could be treated as LanguageVariant.JSX then this resolves typescript-eslints issue with parsing extraFileExtensions such as vue files.

I'm unsure what the consequences and other use cases of ScriptKind.Deferred are so it could be as simple as adjusting getLanguageVariant.

Additional information about the issue

https://github.com/typescript-eslint/typescript-eslint/issues/9934

Beginne mit den verlinkten Stellen in src/compiler/parser.ts und src/compiler/utilities.ts, insbesondere mit der Behandlung der Sprachvariante für ScriptKind.Deferred. Reproduziere den Parsing-Fehler anhand des zugehörigen typescript-eslint-Issues unter Verwendung einer Vue-Datei mit TSX und bewerte anschließend die Auswirkungen davon, Deferred als JSX zu behandeln. Als erledigt gilt die Aufgabe, wenn der gemeldete Vue-Parsing-Fehler behoben ist, ohne andere Anwendungsfälle von Deferred ScriptKind zu beeinträchtigen.