diff options
Diffstat (limited to 'haddock-api/src/Haddock/Backends/Xhtml/Decl.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Backends/Xhtml/Decl.hs | 471 |
1 files changed, 284 insertions, 187 deletions
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs index 88aa966c..49149b8c 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs @@ -1,4 +1,6 @@ {-# LANGUAGE TransformListComp #-} +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE Rank2Types #-} ----------------------------------------------------------------------------- -- | -- Module : Haddock.Backends.Html.Decl @@ -18,7 +20,6 @@ module Haddock.Backends.Xhtml.Decl ( tyvarNames ) where - import Haddock.Backends.Xhtml.DocMarkup import Haddock.Backends.Xhtml.Layout import Haddock.Backends.Xhtml.Names @@ -28,7 +29,6 @@ import Haddock.GhcUtils import Haddock.Types import Haddock.Doc (combineDocumentation) -import Control.Applicative import Data.List ( intersperse, sort ) import qualified Data.Map as Map import Data.Maybe @@ -38,18 +38,20 @@ import GHC import GHC.Exts import Name import BooleanFormula +import RdrName ( rdrNameOcc ) ppDecl :: Bool -> LinksInfo -> LHsDecl DocName -> DocForDecl DocName -> [DocInstance DocName] -> [(DocName, Fixity)] -> [(DocName, DocForDecl DocName)] -> Splice -> Unicode -> Qualification -> Html ppDecl summ links (L loc decl) (mbDoc, fnArgsDoc) instances fixities subdocs splice unicode qual = case decl of - TyClD (FamDecl d) -> ppTyFam summ False links instances fixities loc mbDoc d splice unicode qual - TyClD d@(DataDecl {}) -> ppDataDecl summ links instances fixities subdocs loc mbDoc d splice unicode qual - TyClD d@(SynDecl {}) -> ppTySyn summ links fixities loc (mbDoc, fnArgsDoc) d splice unicode qual - TyClD d@(ClassDecl {}) -> ppClassDecl summ links instances fixities loc mbDoc subdocs d splice unicode qual - SigD (TypeSig lnames lty _) -> ppLFunSig summ links loc (mbDoc, fnArgsDoc) lnames lty fixities splice unicode qual - SigD (PatSynSig lname qtvs prov req ty) -> - ppLPatSig summ links loc (mbDoc, fnArgsDoc) lname qtvs prov req ty fixities splice unicode qual + TyClD (FamDecl d) -> ppTyFam summ False links instances fixities loc mbDoc d splice unicode qual + TyClD d@(DataDecl {}) -> ppDataDecl summ links instances fixities subdocs loc mbDoc d splice unicode qual + TyClD d@(SynDecl {}) -> ppTySyn summ links fixities loc (mbDoc, fnArgsDoc) d splice unicode qual + TyClD d@(ClassDecl {}) -> ppClassDecl summ links instances fixities loc mbDoc subdocs d splice unicode qual + SigD (TypeSig lnames lty) -> ppLFunSig summ links loc (mbDoc, fnArgsDoc) lnames + (hsSigWcType lty) fixities splice unicode qual + SigD (PatSynSig lname ty) -> ppLPatSig summ links loc (mbDoc, fnArgsDoc) lname + ty fixities splice unicode qual ForD d -> ppFor summ links loc (mbDoc, fnArgsDoc) d fixities splice unicode qual InstD _ -> noHtml _ -> error "declaration not supported by ppDecl" @@ -59,26 +61,23 @@ ppLFunSig :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName -> [Located DocName] -> LHsType DocName -> [(DocName, Fixity)] -> Splice -> Unicode -> Qualification -> Html ppLFunSig summary links loc doc lnames lty fixities splice unicode qual = - ppFunSig summary links loc doc (map unLoc lnames) (unLoc lty) fixities + ppFunSig summary links loc doc (map unLoc lnames) lty fixities splice unicode qual ppFunSig :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName -> - [DocName] -> HsType DocName -> [(DocName, Fixity)] -> + [DocName] -> LHsType DocName -> [(DocName, Fixity)] -> Splice -> Unicode -> Qualification -> Html ppFunSig summary links loc doc docnames typ fixities splice unicode qual = - ppSigLike summary links loc mempty doc docnames fixities (typ, pp_typ) + ppSigLike summary links loc mempty doc docnames fixities (unLoc typ, pp_typ) splice unicode qual where - pp_typ = ppType unicode qual typ + pp_typ = ppLType unicode qual typ ppLPatSig :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName -> - Located DocName -> - (HsExplicitFlag, LHsTyVarBndrs DocName) -> - LHsContext DocName -> LHsContext DocName -> - LHsType DocName -> + Located DocName -> LHsSigType DocName -> [(DocName, Fixity)] -> Splice -> Unicode -> Qualification -> Html -ppLPatSig summary links loc (doc, _argDocs) (L _ name) (expl, qtvs) lprov lreq typ fixities splice unicode qual +ppLPatSig summary links loc (doc, _argDocs) (L _ name) typ fixities splice unicode qual | summary = pref1 | otherwise = topDeclElem links loc splice [name] (pref1 <+> ppFixities fixities qual) +++ docSection Nothing qual doc @@ -86,18 +85,9 @@ ppLPatSig summary links loc (doc, _argDocs) (L _ name) (expl, qtvs) lprov lreq t pref1 = hsep [ keyword "pattern" , ppBinder summary occname , dcolon unicode - , ppLTyVarBndrs expl qtvs unicode qual - , cxt - , ppLType unicode qual typ + , ppLType unicode qual (hsSigType typ) ] - cxt = case (ppLContextMaybe lprov unicode qual, ppLContextMaybe lreq unicode qual) of - (Nothing, Nothing) -> noHtml - (Nothing, Just req) -> parens noHtml <+> darr <+> req <+> darr - (Just prov, Nothing) -> prov <+> darr - (Just prov, Just req) -> prov <+> darr <+> req <+> darr - - darr = darrow unicode occname = nameOccName . getName $ name ppSigLike :: Bool -> LinksInfo -> SrcSpan -> Html -> DocForDecl DocName -> @@ -131,22 +121,29 @@ ppTypeOrFunSig summary links loc docnames typ (doc, argDocs) (pref1, pref2, sep) argDoc n = Map.lookup n argDocs do_largs n leader (L _ t) = do_args n leader t + do_args :: Int -> Html -> HsType DocName -> [SubDecl] - do_args n leader (HsForAllTy _ _ tvs lctxt ltype) - = case unLoc lctxt of - [] -> do_largs n leader' ltype - _ -> (leader' <+> ppLContextNoArrow lctxt unicode qual, Nothing, []) - : do_largs n (darrow unicode) ltype - where leader' = leader <+> ppForAll tvs unicode qual + do_args n leader (HsForAllTy tvs ltype) + = do_largs n leader' ltype + where + leader' = leader <+> ppForAll tvs unicode qual + + do_args n leader (HsQualTy lctxt ltype) + | null (unLoc lctxt) + = do_largs n leader ltype + | otherwise + = (leader <+> ppLContextNoArrow lctxt unicode qual, Nothing, []) + : do_largs n (darrow unicode) ltype + do_args n leader (HsFunTy lt r) = (leader <+> ppLFunLhType unicode qual lt, argDoc n, []) : do_largs (n+1) (arrow unicode) r do_args n leader t = [(leader <+> ppType unicode qual t, argDoc n, [])] -ppForAll :: LHsTyVarBndrs DocName -> Unicode -> Qualification -> Html +ppForAll :: [LHsTyVarBndr DocName] -> Unicode -> Qualification -> Html ppForAll tvs unicode qual = - case [ppKTv n k | L _ (KindedTyVar (L _ n) k) <- hsQTvBndrs tvs] of + case [ppKTv n k | L _ (KindedTyVar (L _ n) k) <- tvs] of [] -> noHtml ts -> forallSymbol unicode <+> hsep ts +++ dot where ppKTv n k = parens $ @@ -174,20 +171,19 @@ ppFixities fs qual = foldr1 (+++) (map ppFix uniq_fs) +++ rightEdge rightEdge = thespan ! [theclass "rightedge"] << noHtml -ppTyVars :: LHsTyVarBndrs DocName -> [Html] -ppTyVars tvs = map ppTyName (tyvarNames tvs) - +ppTyVars :: [LHsTyVarBndr DocName] -> [Html] +ppTyVars tvs = map (ppTyName . getName . hsLTyVarName) tvs -tyvarNames :: LHsTyVarBndrs DocName -> [Name] -tyvarNames = map getName . hsLTyVarNames +tyvarNames :: LHsQTyVars DocName -> [Name] +tyvarNames = map (getName . hsLTyVarName) . hsQTvExplicit ppFor :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName -> ForeignDecl DocName -> [(DocName, Fixity)] -> Splice -> Unicode -> Qualification -> Html -ppFor summary links loc doc (ForeignImport (L _ name) (L _ typ) _ _) fixities +ppFor summary links loc doc (ForeignImport (L _ name) typ _ _) fixities splice unicode qual - = ppFunSig summary links loc doc [name] typ fixities splice unicode qual + = ppFunSig summary links loc doc [name] (hsSigType typ) fixities splice unicode qual ppFor _ _ _ _ _ _ _ _ _ = error "ppFor" @@ -202,7 +198,8 @@ ppTySyn summary links fixities loc doc (SynDecl { tcdLName = L _ name, tcdTyVars (full <+> fixs, hdr <+> fixs, spaceHtml +++ equals) splice unicode qual where - hdr = hsep ([keyword "type", ppBinder summary occ] ++ ppTyVars ltyvars) + hdr = hsep ([keyword "type", ppBinder summary occ] + ++ ppTyVars (hsQTvExplicit ltyvars)) full = hdr <+> equals <+> ppLType unicode qual ltype occ = nameOccName . getName $ name fixs @@ -222,15 +219,37 @@ ppTyName :: Name -> Html ppTyName = ppName Prefix +ppSimpleSig :: LinksInfo -> Splice -> Unicode -> Qualification -> SrcSpan + -> [DocName] -> HsType DocName + -> Html +ppSimpleSig links splice unicode qual loc names typ = + topDeclElem' names $ ppTypeSig True occNames ppTyp unicode + where + topDeclElem' = topDeclElem links loc splice + ppTyp = ppType unicode qual typ + occNames = map getOccName names + + -------------------------------------------------------------------------------- -- * Type families -------------------------------------------------------------------------------- +ppFamilyInfo :: Bool -> FamilyInfo DocName -> Html +ppFamilyInfo assoc OpenTypeFamily + | assoc = keyword "type" + | otherwise = keyword "type family" +ppFamilyInfo assoc DataFamily + | assoc = keyword "data" + | otherwise = keyword "data family" +ppFamilyInfo _ (ClosedTypeFamily _) = keyword "type family" + + ppTyFamHeader :: Bool -> Bool -> FamilyDecl DocName -> Unicode -> Qualification -> Html ppTyFamHeader summary associated d@(FamilyDecl { fdInfo = info - , fdKindSig = mkind }) + , fdResultSig = L _ result + , fdInjectivityAnn = injectivity }) unicode qual = (case info of OpenTypeFamily @@ -244,12 +263,32 @@ ppTyFamHeader summary associated d@(FamilyDecl { fdInfo = info ) <+> ppFamDeclBinderWithVars summary d <+> + ppResultSig result unicode qual <+> - (case mkind of - Just kind -> dcolon unicode <+> ppLKind unicode qual kind - Nothing -> noHtml + (case injectivity of + Nothing -> noHtml + Just (L _ injectivityAnn) -> ppInjectivityAnn unicode qual injectivityAnn ) +ppResultSig :: FamilyResultSig DocName -> Unicode -> Qualification -> Html +ppResultSig result unicode qual = case result of + NoSig -> noHtml + KindSig kind -> dcolon unicode <+> ppLKind unicode qual kind + TyVarSig (L _ bndr) -> equals <+> ppHsTyVarBndr unicode qual bndr + +ppPseudoFamilyHeader :: Unicode -> Qualification -> PseudoFamilyDecl DocName + -> Html +ppPseudoFamilyHeader unicode qual (PseudoFamilyDecl { .. }) = + ppFamilyInfo True pfdInfo <+> + ppAppNameTypes (unLoc pfdLName) [] (map unLoc pfdTyVars) unicode qual <+> + ppResultSig (unLoc pfdKindSig) unicode qual + +ppInjectivityAnn :: Bool -> Qualification -> InjectivityAnn DocName -> Html +ppInjectivityAnn unicode qual (InjectivityAnn lhs rhs) = + char '|' <+> ppLDocName qual Raw lhs <+> arrow unicode <+> + hsep (map (ppLDocName qual Raw) rhs) + + ppTyFam :: Bool -> Bool -> LinksInfo -> [DocInstance DocName] -> [(DocName, Fixity)] -> SrcSpan -> Documentation DocName -> FamilyDecl DocName -> Splice -> Unicode -> Qualification -> Html @@ -270,15 +309,27 @@ ppTyFam summary associated links instances fixities loc doc decl splice unicode = subEquations qual $ map (ppTyFamEqn . unLoc) $ fromMaybe [] mb_eqns | otherwise - = ppInstances instances docname unicode qual + = ppInstances links (OriginFamily docname) instances splice unicode qual -- Individual equation of a closed type family ppTyFamEqn TyFamEqn { tfe_tycon = n, tfe_rhs = rhs - , tfe_pats = HsWB { hswb_cts = ts }} + , tfe_pats = HsIB { hsib_body = ts }} = ( ppAppNameTypes (unLoc n) [] (map unLoc ts) unicode qual <+> equals <+> ppType unicode qual (unLoc rhs) , Nothing, [] ) + + +ppPseudoFamilyDecl :: LinksInfo -> Splice -> Unicode -> Qualification + -> PseudoFamilyDecl DocName + -> Html +ppPseudoFamilyDecl links splice unicode qual + decl@(PseudoFamilyDecl { pfdLName = L loc name, .. }) = + wrapper $ ppPseudoFamilyHeader unicode qual decl + where + wrapper = topDeclElem links loc splice [name] + + -------------------------------------------------------------------------------- -- * Associated Types -------------------------------------------------------------------------------- @@ -347,10 +398,6 @@ ppLContext, ppLContextNoArrow :: Located (HsContext DocName) -> Unicode ppLContext = ppContext . unLoc ppLContextNoArrow = ppContextNoArrow . unLoc - -ppLContextMaybe :: Located (HsContext DocName) -> Unicode -> Qualification -> Maybe Html -ppLContextMaybe = ppContextNoLocsMaybe . map unLoc . unLoc - ppContextNoArrow :: HsContext DocName -> Unicode -> Qualification -> Html ppContextNoArrow cxt unicode qual = fromMaybe noHtml $ ppContextNoLocsMaybe (map unLoc cxt) unicode qual @@ -381,7 +428,7 @@ ppHsContext cxt unicode qual = parenList (map (ppType unicode qual) cxt) ppClassHdr :: Bool -> Located [LHsType DocName] -> DocName - -> LHsTyVarBndrs DocName -> [Located ([Located DocName], [Located DocName])] + -> LHsQTyVars DocName -> [Located ([Located DocName], [Located DocName])] -> Unicode -> Qualification -> Html ppClassHdr summ lctxt n tvs fds unicode qual = keyword "class" @@ -404,7 +451,7 @@ ppShortClassDecl :: Bool -> LinksInfo -> TyClDecl DocName -> SrcSpan ppShortClassDecl summary links (ClassDecl { tcdCtxt = lctxt, tcdLName = lname, tcdTyVars = tvs , tcdFDs = fds, tcdSigs = sigs, tcdATs = ats }) loc subdocs splice unicode qual = - if not (any isVanillaLSig sigs) && null ats + if not (any isUserLSig sigs) && null ats then (if summary then id else topDeclElem links loc splice [nm]) hdr else (if summary then id else topDeclElem links loc splice [nm]) (hdr <+> keyword "where") +++ shortSubDecls False @@ -414,8 +461,9 @@ ppShortClassDecl summary links (ClassDecl { tcdCtxt = lctxt, tcdLName = lname, t -- ToDo: add associated type defaults - [ ppFunSig summary links loc doc names typ [] splice unicode qual - | L _ (TypeSig lnames (L _ typ) _) <- sigs + [ ppFunSig summary links loc doc names (hsSigWcType typ) + [] splice unicode qual + | L _ (TypeSig lnames typ) <- sigs , let doc = lookupAnySubdoc (head names) subdocs names = map unLoc lnames ] -- FIXME: is taking just the first name ok? Is it possible that @@ -441,8 +489,10 @@ ppClassDecl summary links instances fixities loc d subdocs | otherwise = classheader +++ docSection Nothing qual d +++ minimalBit +++ atBit +++ methodBit +++ instancesBit where + sigs = map unLoc lsigs + classheader - | any isVanillaLSig lsigs = topDeclElem links loc splice [nm] (hdr unicode qual <+> keyword "where" <+> fixs) + | any isUserLSig lsigs = topDeclElem links loc splice [nm] (hdr unicode qual <+> keyword "where" <+> fixs) | otherwise = topDeclElem links loc splice [nm] (hdr unicode qual <+> fixs) -- Only the fixity relevant to the class header @@ -459,8 +509,9 @@ ppClassDecl summary links instances fixities loc d subdocs doc = lookupAnySubdoc (unL $ fdLName $ unL at) subdocs subfixs = [ f | f@(n',_) <- fixities, n == n' ] ] - methodBit = subMethods [ ppFunSig summary links loc doc names typ subfixs splice unicode qual - | L _ (TypeSig lnames (L _ typ) _) <- lsigs + methodBit = subMethods [ ppFunSig summary links loc doc names (hsSigType typ) + subfixs splice unicode qual + | L _ (ClassOpSig _ lnames typ) <- lsigs , let doc = lookupAnySubdoc (head names) subdocs subfixs = [ f | n <- names , f@(n',_) <- fixities @@ -470,15 +521,15 @@ ppClassDecl summary links instances fixities loc d subdocs -- there are different subdocs for different names in a single -- type signature? - minimalBit = case [ s | L _ (MinimalSig _ s) <- lsigs ] of + minimalBit = case [ s | MinimalSig _ (L _ s) <- sigs ] of -- Miminal complete definition = every shown method - And xs : _ | sort [getName n | Var (L _ n) <- xs] == - sort [getName n | L _ (TypeSig ns _ _) <- lsigs, L _ n <- ns] + And xs : _ | sort [getName n | L _ (Var (L _ n)) <- xs] == + sort [getName n | TypeSig ns _ <- sigs, L _ n <- ns] -> noHtml -- Minimal complete definition = the only shown method Var (L _ n) : _ | [getName n] == - [getName n' | L _ (TypeSig ns _ _) <- lsigs, L _ n' <- ns] + [getName n' | L _ (TypeSig ns _) <- lsigs, L _ n' <- ns] -> noHtml -- Minimal complete definition = nothing @@ -488,35 +539,98 @@ ppClassDecl summary links instances fixities loc d subdocs _ -> noHtml ppMinimal _ (Var (L _ n)) = ppDocName qual Prefix True n - ppMinimal _ (And fs) = foldr1 (\a b -> a+++", "+++b) $ map (ppMinimal True) fs - ppMinimal p (Or fs) = wrap $ foldr1 (\a b -> a+++" | "+++b) $ map (ppMinimal False) fs + ppMinimal _ (And fs) = foldr1 (\a b -> a+++", "+++b) $ map (ppMinimal True . unLoc) fs + ppMinimal p (Or fs) = wrap $ foldr1 (\a b -> a+++" | "+++b) $ map (ppMinimal False . unLoc) fs where wrap | p = parens | otherwise = id + ppMinimal p (Parens x) = ppMinimal p (unLoc x) - instancesBit = ppInstances instances nm unicode qual + instancesBit = ppInstances links (OriginClass nm) instances + splice unicode qual ppClassDecl _ _ _ _ _ _ _ _ _ _ _ = error "declaration type not supported by ppShortClassDecl" -ppInstances :: [DocInstance DocName] -> DocName -> Unicode -> Qualification -> Html -ppInstances instances baseName unicode qual - = subInstances qual instName (map instDecl instances) +ppInstances :: LinksInfo + -> InstOrigin DocName -> [DocInstance DocName] + -> Splice -> Unicode -> Qualification + -> Html +ppInstances links origin instances splice unicode qual + = subInstances qual instName links True (zipWith instDecl [1..] instances) + -- force Splice = True to use line URLs where - instName = getOccString $ getName baseName - instDecl :: DocInstance DocName -> SubDecl - instDecl (inst, maybeDoc) = (instHead inst, maybeDoc, []) - instHead (n, ks, ts, ClassInst cs) = ppContextNoLocs cs unicode qual - <+> ppAppNameTypes n ks ts unicode qual - instHead (n, ks, ts, TypeInst rhs) = keyword "type" - <+> ppAppNameTypes n ks ts unicode qual - <+> maybe noHtml (\t -> equals <+> ppType unicode qual t) rhs - instHead (n, ks, ts, DataInst dd) = keyword "data" - <+> ppAppNameTypes n ks ts unicode qual - <+> ppShortDataDecl False True dd unicode qual + instName = getOccString origin + instDecl :: Int -> DocInstance DocName -> (SubDecl,Located DocName) + instDecl no (inst, mdoc, loc) = + ((ppInstHead links splice unicode qual mdoc origin no inst), loc) + + +ppInstHead :: LinksInfo -> Splice -> Unicode -> Qualification + -> Maybe (MDoc DocName) + -> InstOrigin DocName -> Int -> InstHead DocName + -> SubDecl +ppInstHead links splice unicode qual mdoc origin no ihd@(InstHead {..}) = + case ihdInstType of + ClassInst { .. } -> + ( subInstHead iid $ ppContextNoLocs clsiCtx unicode qual <+> typ + , mdoc + , [subInstDetails iid ats sigs] + ) + where + iid = instanceId origin no ihd + sigs = ppInstanceSigs links splice unicode qual clsiSigs + ats = ppInstanceAssocTys links splice unicode qual clsiAssocTys + TypeInst rhs -> + (ptype, mdoc, []) + where + ptype = keyword "type" <+> typ <+> prhs + prhs = maybe noHtml (\t -> equals <+> ppType unicode qual t) rhs + DataInst dd -> + (pdata, mdoc, []) + where + pdata = keyword "data" <+> typ <+> pdecl + pdecl = ppShortDataDecl False True dd unicode qual + where + typ = ppAppNameTypes ihdClsName ihdKinds ihdTypes unicode qual + + +ppInstanceAssocTys :: LinksInfo -> Splice -> Unicode -> Qualification + -> [PseudoFamilyDecl DocName] + -> [Html] +ppInstanceAssocTys links splice unicode qual = + map ppFamilyDecl' + where + ppFamilyDecl' = ppPseudoFamilyDecl links splice unicode qual + + +ppInstanceSigs :: LinksInfo -> Splice -> Unicode -> Qualification + -> [Sig DocName] + -> [Html] +ppInstanceSigs links splice unicode qual sigs = do + TypeSig lnames typ <- sigs + let names = map unLoc lnames + L loc rtyp = get_type typ + return $ ppSimpleSig links splice unicode qual loc names rtyp + where + get_type = hswc_body . hsib_body + lookupAnySubdoc :: Eq id1 => id1 -> [(id1, DocForDecl id2)] -> DocForDecl id2 lookupAnySubdoc n = fromMaybe noDocForDecl . lookup n +instanceId :: InstOrigin DocName -> Int -> InstHead DocName -> String +instanceId origin no ihd = concat + [ qual origin + , ":" ++ getOccString origin + , ":" ++ (occNameString . getOccName . ihdClsName) ihd + , ":" ++ show no + ] + where + qual (OriginClass _) = "ic" + qual (OriginData _) = "id" + qual (OriginFamily _) = "if" + + ------------------------------------------------------------------------------- -- * Data & newtype declarations ------------------------------------------------------------------------------- @@ -528,11 +642,11 @@ ppShortDataDecl summary dataInst dataDecl unicode qual | [] <- cons = dataHeader - | [lcon] <- cons, ResTyH98 <- resTy, + | [lcon] <- cons, isH98, (cHead,cBody,cFoot) <- ppShortConstrParts summary dataInst (unLoc lcon) unicode qual = (dataHeader <+> equals <+> cHead) +++ cBody +++ cFoot - | ResTyH98 <- resTy = dataHeader + | isH98 = dataHeader +++ shortSubDecls dataInst (zipWith doConstr ('=':repeat '|') cons) | otherwise = (dataHeader <+> keyword "where") @@ -546,7 +660,9 @@ ppShortDataDecl summary dataInst dataDecl unicode qual doGADTConstr con = ppShortConstr summary (unLoc con) unicode qual cons = dd_cons (tcdDataDefn dataDecl) - resTy = (con_res . unLoc . head) cons + isH98 = case unLoc (head cons) of + ConDeclH98 {} -> True + ConDeclGADT{} -> False ppDataDecl :: Bool -> LinksInfo -> [DocInstance DocName] -> [(DocName, Fixity)] -> @@ -562,7 +678,9 @@ ppDataDecl summary links instances fixities subdocs loc doc dataDecl where docname = tcdName dataDecl cons = dd_cons (tcdDataDefn dataDecl) - resTy = (con_res . unLoc . head) cons + isH98 = case unLoc (head cons) of + ConDeclH98 {} -> True + ConDeclGADT{} -> False header_ = topDeclElem links loc splice [docname] $ ppDataHeader summary dataDecl unicode qual <+> whereBit <+> fix @@ -571,18 +689,17 @@ ppDataDecl summary links instances fixities subdocs loc doc dataDecl whereBit | null cons = noHtml - | otherwise = case resTy of - ResTyGADT _ _ -> keyword "where" - _ -> noHtml + | otherwise = if isH98 then noHtml else keyword "where" constrBit = subConstructors qual [ ppSideBySideConstr subdocs subfixs unicode qual c | c <- cons , let subfixs = filter (\(n,_) -> any (\cn -> cn == n) - (map unLoc (con_names (unLoc c)))) fixities + (map unLoc (getConNames (unLoc c)))) fixities ] - instancesBit = ppInstances instances docname unicode qual + instancesBit = ppInstances links (OriginData docname) instances + splice unicode qual @@ -595,8 +712,8 @@ ppShortConstr summary con unicode qual = cHead <+> cBody <+> cFoot -- returns three pieces: header, body, footer so that header & footer can be -- incorporated into the declaration ppShortConstrParts :: Bool -> Bool -> ConDecl DocName -> Unicode -> Qualification -> (Html, Html, Html) -ppShortConstrParts summary dataInst con unicode qual = case con_res con of - ResTyH98 -> case con_details con of +ppShortConstrParts summary dataInst con unicode qual = case con of + ConDeclH98{} -> case con_details con of PrefixCon args -> (header_ unicode qual +++ hsep (ppOcc : map (ppLParendType unicode qual) args), noHtml, noHtml) @@ -609,28 +726,15 @@ ppShortConstrParts summary dataInst con unicode qual = case con_res con of ppOccInfix, ppLParendType unicode qual arg2], noHtml, noHtml) - ResTyGADT _ resTy -> case con_details con of - -- prefix & infix could use hsConDeclArgTys if it seemed to - -- simplify the code. - PrefixCon args -> (doGADTCon args resTy, noHtml, noHtml) - -- display GADT records with the new syntax, - -- Constr :: (Context) => { field :: a, field2 :: b } -> Ty (a, b) - -- (except each field gets its own line in docs, to match - -- non-GADT records) - RecCon (L _ fields) -> (ppOcc <+> dcolon unicode <+> - ppForAllCon forall_ ltvs lcontext unicode qual <+> char '{', - doRecordFields fields, - char '}' <+> arrow unicode <+> ppLType unicode qual resTy) - InfixCon arg1 arg2 -> (doGADTCon [arg1, arg2] resTy, noHtml, noHtml) + ConDeclGADT {} -> (ppOcc <+> dcolon unicode <+> ppLType unicode qual resTy,noHtml,noHtml) where + resTy = hsib_body (con_type con) + doRecordFields fields = shortSubDecls dataInst (map (ppShortField summary unicode qual) (map unLoc fields)) - doGADTCon args resTy = ppOcc <+> dcolon unicode <+> hsep [ - ppForAllCon forall_ ltvs lcontext unicode qual, - ppLType unicode qual (foldr mkFunTy resTy args) ] header_ = ppConstrHdr forall_ tyVars context - occ = map (nameOccName . getName . unLoc) $ con_names con + occ = map (nameOccName . getName . unLoc) $ getConNames con ppOcc = case occ of [one] -> ppBinder summary one @@ -640,35 +744,34 @@ ppShortConstrParts summary dataInst con unicode qual = case con_res con of [one] -> ppBinderInfix summary one _ -> hsep (punctuate comma (map (ppBinderInfix summary) occ)) - ltvs = con_qvars con + ltvs = fromMaybe (HsQTvs PlaceHolder []) (con_qvars con) tyVars = tyvarNames ltvs - lcontext = con_cxt con - context = unLoc (con_cxt con) - forall_ = con_explicit con - mkFunTy a b = noLoc (HsFunTy a b) + lcontext = fromMaybe (noLoc []) (con_cxt con) + context = unLoc lcontext + forall_ = False -- ppConstrHdr is for (non-GADT) existentials constructors' syntax -ppConstrHdr :: HsExplicitFlag -> [Name] -> HsContext DocName -> Unicode +ppConstrHdr :: Bool -> [Name] -> HsContext DocName -> Unicode -> Qualification -> Html ppConstrHdr forall_ tvs ctxt unicode qual = (if null tvs then noHtml else ppForall) +++ - (if null ctxt then noHtml else ppContextNoArrow ctxt unicode qual - <+> darrow unicode +++ toHtml " ") + (if null ctxt then noHtml + else ppContextNoArrow ctxt unicode qual + <+> darrow unicode +++ toHtml " ") where - ppForall = case forall_ of - Explicit -> forallSymbol unicode <+> hsep (map (ppName Prefix) tvs) <+> toHtml ". " - Qualified -> noHtml - Implicit -> noHtml - + ppForall | forall_ = forallSymbol unicode <+> hsep (map (ppName Prefix) tvs) + <+> toHtml ". " + | otherwise = noHtml ppSideBySideConstr :: [(DocName, DocForDecl DocName)] -> [(DocName, Fixity)] -> Unicode -> Qualification -> LConDecl DocName -> SubDecl -ppSideBySideConstr subdocs fixities unicode qual (L _ con) = (decl, mbDoc, fieldPart) +ppSideBySideConstr subdocs fixities unicode qual (L _ con) + = (decl, mbDoc, fieldPart) where - decl = case con_res con of - ResTyH98 -> case con_details con of + decl = case con of + ConDeclH98{} -> case con_details con of PrefixCon args -> hsep ((header_ +++ ppOcc) : map (ppLParendType unicode qual) args) @@ -682,28 +785,26 @@ ppSideBySideConstr subdocs fixities unicode qual (L _ con) = (decl, mbDoc, field ppLParendType unicode qual arg2] <+> fixity - ResTyGADT _ resTy -> case con_details con of - -- prefix & infix could also use hsConDeclArgTys if it seemed to - -- simplify the code. - PrefixCon args -> doGADTCon args resTy - cd@(RecCon _) -> doGADTCon (hsConDeclArgTys cd) resTy - InfixCon arg1 arg2 -> doGADTCon [arg1, arg2] resTy + ConDeclGADT{} -> doGADTCon resTy + + resTy = hsib_body (con_type con) - fieldPart = case con_details con of + fieldPart = case getConDetails con of RecCon (L _ fields) -> [doRecordFields fields] _ -> [] doRecordFields fields = subFields qual (map (ppSideBySideField subdocs unicode qual) (map unLoc fields)) - doGADTCon :: [LHsType DocName] -> Located (HsType DocName) -> Html - doGADTCon args resTy = ppOcc <+> dcolon unicode - <+> hsep [ppForAllCon forall_ ltvs (con_cxt con) unicode qual, - ppLType unicode qual (foldr mkFunTy resTy args) ] + + doGADTCon :: Located (HsType DocName) -> Html + doGADTCon ty = ppOcc <+> dcolon unicode + -- ++AZ++ make this prepend "{..}" when it is a record style GADT + <+> ppLType unicode qual ty <+> fixity fixity = ppFixities fixities qual header_ = ppConstrHdr forall_ tyVars context unicode qual - occ = map (nameOccName . getName . unLoc) $ con_names con + occ = map (nameOccName . getName . unLoc) $ getConNames con ppOcc = case occ of [one] -> ppBinder False one @@ -713,32 +814,30 @@ ppSideBySideConstr subdocs fixities unicode qual (L _ con) = (decl, mbDoc, field [one] -> ppBinderInfix False one _ -> hsep (punctuate comma (map (ppBinderInfix False) occ)) - ltvs = con_qvars con - tyVars = tyvarNames (con_qvars con) - context = unLoc (con_cxt con) - forall_ = con_explicit con + tyVars = tyvarNames (fromMaybe (HsQTvs PlaceHolder []) (con_qvars con)) + context = unLoc (fromMaybe (noLoc []) (con_cxt con)) + forall_ = False -- don't use "con_doc con", in case it's reconstructed from a .hi file, -- or also because we want Haddock to do the doc-parsing, not GHC. - mbDoc = lookup (unLoc $ head $ con_names con) subdocs >>= + mbDoc = lookup (unLoc $ head $ getConNames con) subdocs >>= combineDocumentation . fst - mkFunTy a b = noLoc (HsFunTy a b) ppSideBySideField :: [(DocName, DocForDecl DocName)] -> Unicode -> Qualification -> ConDeclField DocName -> SubDecl ppSideBySideField subdocs unicode qual (ConDeclField names ltype _) = - (hsep (punctuate comma (map ((ppBinder False) . nameOccName . getName . unL) names)) <+> dcolon unicode <+> ppLType unicode qual ltype, + (hsep (punctuate comma (map ((ppBinder False) . rdrNameOcc . rdrNameFieldOcc . unLoc) names)) <+> dcolon unicode <+> ppLType unicode qual ltype, mbDoc, []) where -- don't use cd_fld_doc for same reason we don't use con_doc above -- Where there is more than one name, they all have the same documentation - mbDoc = lookup (unL $ head names) subdocs >>= combineDocumentation . fst + mbDoc = lookup (selectorFieldOcc $ unLoc $ head names) subdocs >>= combineDocumentation . fst ppShortField :: Bool -> Unicode -> Qualification -> ConDeclField DocName -> Html ppShortField summary unicode qual (ConDeclField names ltype _) - = hsep (punctuate comma (map ((ppBinder summary) . nameOccName . getName . unL) names)) + = hsep (punctuate comma (map ((ppBinder summary) . rdrNameOcc . rdrNameFieldOcc . unLoc) names)) <+> dcolon unicode <+> ppLType unicode qual ltype @@ -768,10 +867,10 @@ ppDataHeader _ _ _ _ = error "ppDataHeader: illegal argument" -------------------------------------------------------------------------------- -ppBang :: HsBang -> Html -ppBang HsNoBang = noHtml -ppBang _ = toHtml "!" -- Unpacked args is an implementation detail, - -- so we just show the strictness annotation +ppBang :: HsSrcBang -> Html +ppBang (HsSrcBang _ _ SrcStrict) = toHtml "!" +ppBang (HsSrcBang _ _ SrcLazy) = toHtml "~" +ppBang _ = noHtml tupleParens :: HsTupleSort -> [Html] -> Html @@ -817,52 +916,42 @@ ppCtxType unicode qual ty = ppr_mono_ty pREC_CTX ty unicode qual ppParendType unicode qual ty = ppr_mono_ty pREC_CON ty unicode qual ppFunLhType unicode qual ty = ppr_mono_ty pREC_FUN ty unicode qual +ppHsTyVarBndr :: Unicode -> Qualification -> HsTyVarBndr DocName -> Html +ppHsTyVarBndr _ qual (UserTyVar (L _ name)) = + ppDocName qual Raw False name +ppHsTyVarBndr unicode qual (KindedTyVar name kind) = + parens (ppDocName qual Raw False (unLoc name) <+> dcolon unicode <+> + ppLKind unicode qual kind) + ppLKind :: Unicode -> Qualification -> LHsKind DocName -> Html ppLKind unicode qual y = ppKind unicode qual (unLoc y) ppKind :: Unicode -> Qualification -> HsKind DocName -> Html ppKind unicode qual ki = ppr_mono_ty pREC_TOP ki unicode qual --- Drop top-level for-all type variables in user style --- since they are implicit in Haskell - -ppForAllCon :: HsExplicitFlag -> LHsTyVarBndrs DocName - -> Located (HsContext DocName) -> Unicode -> Qualification -> Html -ppForAllCon expl tvs cxt unicode qual = - forall_part <+> ppLContext cxt unicode qual - where - forall_part = ppLTyVarBndrs expl tvs unicode qual - -ppLTyVarBndrs :: HsExplicitFlag -> LHsTyVarBndrs DocName - -> Unicode -> Qualification - -> Html -ppLTyVarBndrs expl tvs unicode _qual - | show_forall = hsep (forallSymbol unicode : ppTyVars tvs) +++ dot - | otherwise = noHtml - where - show_forall = not (null (hsQTvBndrs tvs)) && is_explicit - is_explicit = case expl of {Explicit -> True; Implicit -> False; Qualified -> False} - +ppForAllPart :: [LHsTyVarBndr DocName] -> Unicode -> Html +ppForAllPart tvs unicode = hsep (forallSymbol unicode : ppTyVars tvs) +++ dot ppr_mono_lty :: Int -> LHsType DocName -> Unicode -> Qualification -> Html ppr_mono_lty ctxt_prec ty = ppr_mono_ty ctxt_prec (unLoc ty) ppr_mono_ty :: Int -> HsType DocName -> Unicode -> Qualification -> Html -ppr_mono_ty ctxt_prec (HsForAllTy expl extra tvs ctxt ty) unicode qual - = maybeParen ctxt_prec pREC_FUN $ ppForAllCon expl tvs ctxt' unicode qual - <+> ppr_mono_lty pREC_TOP ty unicode qual - where ctxt' = case extra of - Just loc -> (++ [L loc HsWildcardTy]) `fmap` ctxt - Nothing -> ctxt +ppr_mono_ty ctxt_prec (HsForAllTy tvs ty) unicode qual + = maybeParen ctxt_prec pREC_FUN $ + ppForAllPart tvs unicode <+> ppr_mono_lty pREC_TOP ty unicode qual + +ppr_mono_ty ctxt_prec (HsQualTy ctxt ty) unicode qual + = maybeParen ctxt_prec pREC_FUN $ + ppLContext ctxt unicode qual <+> ppr_mono_lty pREC_TOP ty unicode qual -- UnicodeSyntax alternatives -ppr_mono_ty _ (HsTyVar name) True _ +ppr_mono_ty _ (HsTyVar (L _ name)) True _ | getOccString (getName name) == "*" = toHtml "★" | getOccString (getName name) == "(->)" = toHtml "(→)" ppr_mono_ty _ (HsBangTy b ty) u q = ppBang b +++ ppLParendType u q ty -ppr_mono_ty _ (HsTyVar name) _ q = ppDocName q Prefix True name +ppr_mono_ty _ (HsTyVar (L _ name)) _ q = ppDocName q Prefix True name ppr_mono_ty ctxt_prec (HsFunTy ty1 ty2) u q = ppr_fun_ty ctxt_prec ty1 ty2 u q ppr_mono_ty _ (HsTupleTy con tys) u q = tupleParens con (map (ppLType u q) tys) ppr_mono_ty _ (HsKindSig ty kind) u q = @@ -872,11 +961,14 @@ ppr_mono_ty _ (HsPArrTy ty) u q = pabrackets (ppr_mono_lty pREC_TO ppr_mono_ty ctxt_prec (HsIParamTy n ty) u q = maybeParen ctxt_prec pREC_CTX $ ppIPName n <+> dcolon u <+> ppr_mono_lty pREC_TOP ty u q ppr_mono_ty _ (HsSpliceTy {}) _ _ = error "ppr_mono_ty HsSpliceTy" -ppr_mono_ty _ (HsRecTy {}) _ _ = error "ppr_mono_ty HsRecTy" +ppr_mono_ty _ (HsRecTy {}) _ _ = toHtml "{..}" + -- Can now legally occur in ConDeclGADT, the output here is to provide a + -- placeholder in the signature, which is followed by the field + -- declarations. ppr_mono_ty _ (HsCoreTy {}) _ _ = error "ppr_mono_ty HsCoreTy" -ppr_mono_ty _ (HsExplicitListTy _ tys) u q = quote $ brackets $ hsep $ punctuate comma $ map (ppLType u q) tys -ppr_mono_ty _ (HsExplicitTupleTy _ tys) u q = quote $ parenList $ map (ppLType u q) tys -ppr_mono_ty _ (HsWrapTy {}) _ _ = error "ppr_mono_ty HsWrapTy" +ppr_mono_ty _ (HsExplicitListTy _ tys) u q = promoQuote $ brackets $ hsep $ punctuate comma $ map (ppLType u q) tys +ppr_mono_ty _ (HsExplicitTupleTy _ tys) u q = promoQuote $ parenList $ map (ppLType u q) tys +ppr_mono_ty _ (HsAppsTy {}) _ _ = error "ppr_mono_ty HsAppsTy" ppr_mono_ty ctxt_prec (HsEqTy ty1 ty2) unicode qual = maybeParen ctxt_prec pREC_CTX $ @@ -886,11 +978,16 @@ ppr_mono_ty ctxt_prec (HsAppTy fun_ty arg_ty) unicode qual = maybeParen ctxt_prec pREC_CON $ hsep [ppr_mono_lty pREC_FUN fun_ty unicode qual, ppr_mono_lty pREC_CON arg_ty unicode qual] -ppr_mono_ty ctxt_prec (HsOpTy ty1 (_, op) ty2) unicode qual +ppr_mono_ty ctxt_prec (HsOpTy ty1 op ty2) unicode qual = maybeParen ctxt_prec pREC_FUN $ ppr_mono_lty pREC_OP ty1 unicode qual <+> ppr_op <+> ppr_mono_lty pREC_OP ty2 unicode qual where - ppr_op = ppLDocName qual Infix op + -- `(:)` is valid in type signature only as constructor to promoted list + -- and needs to be quoted in code so we explicitly quote it here too. + ppr_op + | (getOccString . getName . unLoc) op == ":" = promoQuote ppr_op' + | otherwise = ppr_op' + ppr_op' = ppLDocName qual Infix op ppr_mono_ty ctxt_prec (HsParTy ty) unicode qual -- = parens (ppr_mono_lty pREC_TOP ty) @@ -899,9 +996,9 @@ ppr_mono_ty ctxt_prec (HsParTy ty) unicode qual ppr_mono_ty ctxt_prec (HsDocTy ty _) unicode qual = ppr_mono_lty ctxt_prec ty unicode qual -ppr_mono_ty _ HsWildcardTy _ _ = char '_' +ppr_mono_ty _ (HsWildCardTy (AnonWildCard _)) _ _ = char '_' -ppr_mono_ty _ (HsNamedWildcardTy name) _ q = ppDocName q Prefix True name +ppr_mono_ty _ (HsWildCardTy (NamedWildCard (L _ name))) _ q = ppDocName q Prefix True name ppr_mono_ty _ (HsTyLit n) _ _ = ppr_tylit n |