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T8958.hs:1:31: Warning:
-XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language.
TYPE SIGNATURES
TYPE CONSTRUCTORS
type role Map nominal representational
newtype (Nominal k, Representational v) => Map k v = MkMap [(k, v)]
Promotable
class Nominal a
type role Representational representational
class Representational a
COERCION AXIOMS
axiom T8958.NTCo:Map :: Map k v = [(k, v)]
INSTANCES
instance [incoherent] Nominal a -- Defined at T8958.hs:7:10
instance [incoherent] Representational a
-- Defined at T8958.hs:10:10
Dependent modules: []
Dependent packages: [base-4.8.2.0, ghc-prim-0.4.0.0,
integer-gmp-1.0.0.0]
==================== Typechecker ====================
AbsBinds [a] []
{Exports: [T8958.$fRepresentationala <= $dRepresentational
<>]
Exported types: T8958.$fRepresentationala
:: forall a. Representational a
[LclIdX[DFunId], Str=DmdType]
Binds: $dRepresentational = T8958.D:Representational}
AbsBinds [a] []
{Exports: [T8958.$fNominala <= $dNominal
<>]
Exported types: T8958.$fNominala :: forall a. Nominal a
[LclIdX[DFunId], Str=DmdType]
Binds: $dNominal = T8958.D:Nominal}
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