{
  "$type": "site.standard.document",
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    "uri": "at://did:plc:pi6woz4d47bkuws673w2il2r/app.bsky.feed.post/3mnw6k5doyqi2"
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  "path": "/t/a-reference-implementation-of-ioscopedref/14253#post_1",
  "publishedAt": "2026-06-10T06:39:46.000Z",
  "site": "https://discourse.haskell.org",
  "tags": [
    "Haskell's missing mutable reference type",
    "Links",
    "Scoped thread-locals",
    "haskells-missing-mutable-ref",
    "A reference implementation of IOScopedRef"
  ],
  "textContent": "Following up from yesterday’s post:\n\nHaskell's missing mutable reference type Links\n\n> Whilst looking at the Scoped thread-locals GHC proposal I realised that Haskell is missing a mutable reference type that some other languges have (and people have tried to encode in Haskell), so I wrote it up: haskells-missing-mutable-ref\n\nToday I show a reference implementation for `IOScopedRef`:\n\n  * A reference implementation of IOScopedRef\n\n",
  "title": "A reference implementation of IOScopedRef"
}