rescript-lang / rescript-lang/rescript

Allow `$` in identifiers

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Dominant language
OCaml
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Description

In JS, an identifier may contain the $ sign.

When using signals, there is the convention to use it to distinguish reactive values like in

const count$ = signal(0);

In ReScript,

let count$ = signal(0)

gives the error

Not sure what to do with this character: "$".

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First steps

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Research direction

No file or test path is named, so first locate the compiler entry point that parses identifiers and the related compiler tests. Check how the $ character is currently rejected, then verify that names such as count$ are accepted in ReScript and compile correctly to JavaScript.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, ocaml
Domain
compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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