@this is breaking in rescript v11

[seekshiva]

This doesn't work: link

Storing the fn in a variable and then returning it works. Link

[fhammerschmidt]

Seems to only happen in uncurried mode. cc @cristianoc

[seekshiva]

It seems like wrapping the @this {fn definition} inside of {} is causing issues. We were able to fix it by changing from {} to ()

[alex35mil]

Came here to report an issue with @this as well.

Playground

type t

@send
external on: (
  t,
  @string
  [
    | #a(t => unit)
    | #b(@this (t => unit)) // ← spot ()
  ],
) => t = "on"

// format
// ↓ ↓ ↓

type t

@send
external on: (
  t,
  @string
  [
    | #a(t => unit)
    | #b(@this t => unit) // ← () dropped
  ],
) => t = "on"