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Fix for #1906: adding GADT fields syntax #1922

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Fix for #1906: adding GADT fields syntax #1922

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9f2076b
Fix for #1904 autolifting of data fields
Fizzixnerd Jan 6, 2022
8aaceac
Add negative test for #1904
Fizzixnerd Jan 6, 2022
943cc45
More tests for #1904
Fizzixnerd Jan 6, 2022
d737a26
Simplify AutoliftedFields02.hs
Fizzixnerd Jan 6, 2022
97522e1
Add tests and initial changes
Fizzixnerd Jan 10, 2022
6d564bf
More tests
Fizzixnerd Jan 10, 2022
483048e
Fix tests
Fizzixnerd Jan 10, 2022
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Fizzixnerd committed Jan 10, 2022
commit 6d564bf6d4c5fc217ef265eab981118ae00b6977
2 changes: 2 additions & 0 deletions tests/basic/neg/GADTFields00.hs
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@@ -1,5 +1,7 @@
{-# LANGUAGE GADTs #-}

{-@ LIQUID "--exact-data-cons" @-}

-- With a refinement type embedded and then used wrongly

module GADTFields00 where
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2 changes: 2 additions & 0 deletions tests/basic/neg/GADTFields01.hs
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@@ -1,5 +1,7 @@
{-# LANGUAGE GADTs #-}

{-@ LIQUID "--exact-data-cons" @-}

-- With a refinement type embedded in a function using a fieldname, but with a
-- bad type

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22 changes: 22 additions & 0 deletions tests/basic/neg/GADTFields02.hs
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@@ -0,0 +1,22 @@
{-# LANGUAGE GADTs #-}

{-@ LIQUID "--exact-data-cons" @-}

-- With a refinement type embedded in a function using a fieldname, but with a
-- bad type

module GADTFields02 where

{-@
data T where
T :: { getT :: Int, getT' :: { v:Int | v >= 0 } } -> T
@-}
data T where
T :: { getT :: Int, getT' :: Int } -> T

{-@ f :: { v:T | getT' v < 0 } -> { x:Int | x >= 0 } @-}
f :: T -> Int
f = getT'

main :: IO ()
main = print (getT' (T 5 6))
23 changes: 23 additions & 0 deletions tests/basic/neg/GADTFields03.hs
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{-# LANGUAGE GADTs #-}

{-@ LIQUID "--exact-data-cons" @-}

-- With a refinement type embedded in a function using a fieldname, but with a
-- bad type

module GADTFields03 where

{-@
data T a where
T :: { getT :: Int, getT' :: { v:Int | v >= 0 } } -> T Int
@-}
data T a where
T :: { getT :: Int, getT' :: Int } -> T Int
S :: { getT :: Int, getS :: String } -> T Int

{-@ f :: { v:T Int | getT' v < 0 } -> { x:Int | x >= 0 } @-}
f :: T Int -> Int
f = getT'

main :: IO ()
main = print (getT' (T 5 6))