Documentation

tcMatchTy :: TyVarSet -> Type -> Type -> Maybe TvSubst Source

tcMatchTys :: TyVarSet -> [Type] -> [Type] -> Maybe TvSubst Source

tcMatchTyX :: TyVarSet -> TvSubst -> Type -> Type -> Maybe TvSubst Source

ruleMatchTyX :: MatchEnv -> TvSubstEnv -> Type -> Type -> Maybe TvSubstEnv Source

tcMatchPreds :: [TyVar] -> [PredType] -> [PredType] -> Maybe TvSubstEnv Source

data MatchEnv Source

matchList :: (env -> a -> b -> Maybe env) -> env -> [a] -> [b] -> Maybe env Source

typesCantMatch :: [(Type, Type)] -> Bool Source

tcUnifyTy :: Type -> Type -> Maybe TvSubst Source

tcUnifyTys :: (TyVar -> BindFlag) -> [Type] -> [Type] -> Maybe TvSubst Source

data BindFlag Source

niFixTvSubst :: TvSubstEnv -> TvSubst Source

niSubstTvSet :: TvSubstEnv -> TyVarSet -> TyVarSet Source

data UnifyResultM a Source

type UnifyResult = UnifyResultM TvSubst Source

tcUnifyTysFG :: (TyVar -> BindFlag) -> [Type] -> [Type] -> UnifyResult Source