lezer-parser/javascript

Support `-?` and `-readonly`

SirPepe opened this issue · 1 comments

SirPepe commented

-? and -readonly are valid TS, but do not appear to work with lezer:

type Test<T> = { -readonly [P in keyof T]-?: T[P] }

type Result = Test<{ readonly foo?: number }>

// Result = { foo: number }
marijnh commented

It sure would be nice if there were a formal spec for this language. Added in attached patch.

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