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Fix for #1906: adding GADT fields syntax #1922

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Add negative test for #1904
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Fizzixnerd committed Jan 6, 2022
commit 8aaceac4b505e12cc88da7afd10eb1e9642112c9
12 changes: 12 additions & 0 deletions tests/datacon/neg/AutoliftedFields.hs
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
{-@ LIQUID "--exact-data-cons" @-}

module AutoliftedFields where

{-@ type Nat = { v : Int | v >= 0 } @-}
type Nat = Int

data T = T { getT :: Nat }

{-@ f :: { t : T | getT t <= 0 } -> Nat @-}
f :: T -> Nat
f (T x) = x