FunDeps

Documentation

type Equation = (TyVarSet, [(Type, Type)])

pprEquation :: Equation -> SDoc

oclose :: [PredType] -> TyVarSet -> TyVarSet

grow :: [PredType] -> TyVarSet -> TyVarSet

improveOne :: (Class -> [Instance]) -> Pred_Loc -> [Pred_Loc] -> [(Equation, Pred_Loc, Pred_Loc)]

checkInstCoverage :: Class -> [Type] -> Bool

checkFunDeps :: (InstEnv, InstEnv) -> Instance -> Maybe [Instance]

pprFundeps :: Outputable a => [FunDep a] -> SDoc

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