diff options
Diffstat (limited to 'haddock-api/src/Haddock/Convert.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Convert.hs | 67 |
1 files changed, 37 insertions, 30 deletions
diff --git a/haddock-api/src/Haddock/Convert.hs b/haddock-api/src/Haddock/Convert.hs index ff34d271..49c471a4 100644 --- a/haddock-api/src/Haddock/Convert.hs +++ b/haddock-api/src/Haddock/Convert.hs @@ -96,17 +96,10 @@ tyThingToLHsDecl t = case t of -- a data-constructor alone just gets rendered as a function: AConLike (RealDataCon dc) -> allOK $ SigD (TypeSig [synifyName dc] - (synifyType ImplicitizeForAll (dataConUserType dc)) []) + (synifySigWcType ImplicitizeForAll (dataConUserType dc))) AConLike (PatSynCon ps) -> - let (univ_tvs, req_theta, ex_tvs, prov_theta, arg_tys, res_ty) = patSynSig ps - qtvs = univ_tvs ++ ex_tvs - ty = mkFunTys arg_tys res_ty - in allOK . SigD $ PatSynSig (synifyName ps) - (Implicit, synifyTyVars qtvs) - (synifyCtx req_theta) - (synifyCtx prov_theta) - (synifyType WithinType ty) + allOK . SigD $ PatSynSig (synifyName ps) (synifySigType WithinType (patSynType ps)) where withErrs e x = return (e, x) allOK x = return (mempty, x) @@ -118,10 +111,9 @@ synifyAxBranch tc (CoAxBranch { cab_tvs = tkvs, cab_lhs = args, cab_rhs = rhs }) hs_rhs = synifyType WithinType rhs (kvs, tvs) = partition isKindVar tkvs in TyFamEqn { tfe_tycon = name - , tfe_pats = HsWB { hswb_cts = typats - , hswb_kvs = map tyVarName kvs - , hswb_tvs = map tyVarName tvs - , hswb_wcs = [] } + , tfe_pats = HsIB { hsib_body = typats + , hsib_kvs = map tyVarName kvs + , hsib_tvs = map tyVarName tvs } , tfe_rhs = hs_rhs } synifyAxiom :: CoAxiom br -> Either ErrMsg (HsDecl Name) @@ -305,32 +297,40 @@ synifyDataCon use_gadt_syntax dc = else ResTyH98 -- finally we get synifyDataCon's result! in hs_arg_tys >>= - \hat -> return . noLoc $ ConDecl [name] Implicit -- we don't know nor care - qvars ctx hat hs_res_ty Nothing + \hat -> return $ noLoc $ + ConDecl { con_names = [name] + , con_explicit = False -- we don't know nor care + , con_qvars = qvars + , con_cxt = ctx + , con_details = hat + , con_res = hs_res_ty + , con_doc = Nothing } synifyName :: NamedThing n => n -> Located Name synifyName = noLoc . getName synifyIdSig :: SynifyTypeState -> Id -> Sig Name -synifyIdSig s i = TypeSig [synifyName i] (synifyType s (varType i)) [] +synifyIdSig s i = TypeSig [synifyName i] (synifySigWcType s (varType i)) synifyCtx :: [PredType] -> LHsContext Name synifyCtx = noLoc . map (synifyType WithinType) -synifyTyVars :: [TyVar] -> LHsTyVarBndrs Name +synifyTyVars :: [TyVar] -> LHsQTyVars Name synifyTyVars ktvs = HsQTvs { hsq_kvs = map tyVarName kvs , hsq_tvs = map synifyTyVar tvs } where (kvs, tvs) = partition isKindVar ktvs - synifyTyVar tv - | isLiftedTypeKind kind = noLoc (UserTyVar (noLoc name)) - | otherwise = noLoc (KindedTyVar (noLoc name) (synifyKindSig kind)) - where - kind = tyVarKind tv - name = getName tv + +synifyTyVar :: TyVar -> LHsTyVarBndr Name +synifyTyVar tv + | isLiftedTypeKind kind = noLoc (UserTyVar (noLoc name)) + | otherwise = noLoc (KindedTyVar (noLoc name) (synifyKindSig kind)) + where + kind = tyVarKind tv + name = getName tv --states of what to do with foralls: data SynifyTypeState @@ -348,6 +348,15 @@ data SynifyTypeState -- the defining class gets to quantify all its functions for free! +synifySigType :: SynifyTypeState -> Type -> LHsSigType Name +-- The empty binders is a bit suspicious; +-- what if the type has free variables? +synifySigType s ty = mkEmptyImplicitBndrs (synifyType s ty) + +synifySigWcType :: SynifyTypeState -> Type -> LHsSigWcType Name +-- Ditto (see synifySigType) +synifySigWcType s ty = mkEmptyImplicitBndrs (mkEmptyWildCardBndrs (synifyType s ty)) + synifyType :: SynifyTypeState -> Type -> LHsType Name synifyType _ (TyVarTy tv) = noLoc $ HsTyVar $ noLoc (getName tv) synifyType _ (TyConApp tc tys) @@ -386,15 +395,13 @@ synifyType _ (FunTy t1 t2) = let in noLoc $ HsFunTy s1 s2 synifyType s forallty@(ForAllTy _tv _ty) = let (tvs, ctx, tau) = tcSplitSigmaTy forallty - sTvs = synifyTyVars tvs - sCtx = synifyCtx ctx - sTau = synifyType WithinType tau - mkHsForAllTy forallPlicitness = - noLoc $ HsForAllTy forallPlicitness Nothing sTvs sCtx sTau + sPhi = HsQualTy { hst_ctxt = synifyCtx ctx + , hst_body = synifyType WithinType tau } in case s of DeleteTopLevelQuantification -> synifyType ImplicitizeForAll tau - WithinType -> mkHsForAllTy Explicit - ImplicitizeForAll -> mkHsForAllTy Implicit + WithinType -> noLoc $ HsForAllTy { hst_bndrs = map synifyTyVar tvs + , hst_body = noLoc sPhi } + ImplicitizeForAll -> noLoc sPhi synifyType _ (LitTy t) = noLoc $ HsTyLit $ synifyTyLit t |