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🐛 Adding a const modifier for the first type parameter of an arrow function produces a parsing error #846

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Conaclos opened this issue Nov 23, 2023 · 0 comments · Fixed by #845
Closed
1 task done

🐛 Adding a const modifier for the first type parameter of an arrow function produces a parsing error #846

Conaclos opened this issue Nov 23, 2023 · 0 comments · Fixed by #845
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@Conaclos
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A-Parser Area: parser L-JavaScript Language: JavaScript and super languages S-Bug-confirmed Status: report has been confirmed as a valid bug

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@Conaclos
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Environment information

Playground

What happened?

When enabling TypeScript and JSX, the following code produces a parsing error:

<const T,>() => {};

<const T,> is erroneously parsed as a JSX tag.

Playground link

Expected result

The input should be parsed as an arrow function.

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  • I agree to follow Biome's Code of Conduct
@Conaclos Conaclos added A-Parser Area: parser L-JavaScript Language: JavaScript and super languages S-Bug-confirmed Status: report has been confirmed as a valid bug labels Nov 23, 2023
@Conaclos Conaclos self-assigned this Nov 23, 2023
@Conaclos Conaclos mentioned this issue Nov 23, 2023
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@Conaclos Conaclos

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A-Parser Area: parser L-JavaScript Language: JavaScript and super languages S-Bug-confirmed Status: report has been confirmed as a valid bug
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fix(js_parser): desambigaute JSX and const type param of arrow function biomejs/biome
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@Conaclos