Documentation
ruleMatchTyX :: MatchEnv -> TvSubstEnv -> Type -> Type -> Maybe TvSubstEnvSource
tcMatchPreds :: [TyVar] -> [PredType] -> [PredType] -> Maybe TvSubstEnvSource
dataConCannotMatch :: [Type] -> DataCon -> BoolSource
niSubstTvSet :: TvSubstEnv -> TyVarSet -> TyVarSetSource