diff options
Diffstat (limited to 'haddock-api/src/Haddock/Backends/Xhtml/Decl.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Backends/Xhtml/Decl.hs | 222 |
1 files changed, 102 insertions, 120 deletions
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs index cc271fef..12e65716 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs @@ -15,9 +15,7 @@ ----------------------------------------------------------------------------- module Haddock.Backends.Xhtml.Decl ( ppDecl, - - ppTyName, ppTyFamHeader, ppTypeApp, ppOrphanInstances, - tyvarNames + ppOrphanInstances, ) where import Haddock.Backends.Xhtml.DocMarkup @@ -56,7 +54,7 @@ ppDecl :: Bool -- ^ print summary info only -> Qualification -> Html ppDecl summ links (L loc decl) pats (mbDoc, fnArgsDoc) instances fixities subdocs splice unicode pkg qual = case decl of - TyClD _ (FamDecl _ d) -> ppTyFam summ False links instances fixities loc mbDoc d splice unicode pkg qual + TyClD _ (FamDecl _ d) -> ppFamDecl summ False links instances fixities loc mbDoc d splice unicode pkg qual TyClD _ d@(DataDecl {}) -> ppDataDecl summ links instances fixities subdocs loc mbDoc d pats splice unicode pkg qual TyClD _ d@(SynDecl {}) -> ppTySyn summ links fixities loc (mbDoc, fnArgsDoc) d splice unicode pkg qual TyClD _ d@(ClassDecl {}) -> ppClassDecl summ links instances fixities loc mbDoc subdocs d splice unicode pkg qual @@ -67,7 +65,7 @@ ppDecl summ links (L loc decl) pats (mbDoc, fnArgsDoc) instances fixities subdoc ForD _ d -> ppFor summ links loc (mbDoc, fnArgsDoc) d fixities splice unicode pkg qual InstD _ _ -> noHtml DerivD _ _ -> noHtml - _ -> error "declaration not supported by ppDecl" + _ -> error "declaration not supported by ppDecl" ppLFunSig :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName -> @@ -222,9 +220,6 @@ ppFixities fs qual = foldr1 (+++) (map ppFix uniq_fs) +++ rightEdge ppTyVars :: Unicode -> Qualification -> [LHsTyVarBndr DocNameI] -> [Html] ppTyVars unicode qual tvs = map (ppHsTyVarBndr unicode qual . unLoc) tvs -tyvarNames :: LHsQTyVars DocNameI -> [Name] -tyvarNames = map (getName . hsLTyVarName) . hsQTvExplicit - ppFor :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName -> ForeignDecl DocNameI -> [(DocName, Fixity)] @@ -283,111 +278,111 @@ ppSimpleSig links splice unicode qual emptyCtxts loc names typ = -------------------------------------------------------------------------------- -ppFamilyInfo :: Bool -> FamilyInfo DocNameI -> 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 DocNameI - -> Unicode -> Qualification -> Html -ppTyFamHeader summary associated d@(FamilyDecl { fdInfo = info - , fdResultSig = L _ result - , fdInjectivityAnn = injectivity }) - unicode qual = - (case info of - OpenTypeFamily - | associated -> keyword "type" - | otherwise -> keyword "type family" - DataFamily - | associated -> keyword "data" - | otherwise -> keyword "data family" - ClosedTypeFamily _ - -> keyword "type family" - ) <+> - - ppFamDeclBinderWithVars summary unicode qual d <+> - ppResultSig result unicode qual <+> - - (case injectivity of - Nothing -> noHtml - Just (L _ injectivityAnn) -> ppInjectivityAnn unicode qual injectivityAnn - ) <+> - - (case info of - ClosedTypeFamily _ -> keyword "where ..." - _ -> mempty - ) -ppTyFamHeader _ _ (XFamilyDecl _) _ _ = panic "haddock;ppTyFamHeader" - -ppResultSig :: FamilyResultSig DocNameI -> 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 - XFamilyResultSig _ -> panic "haddock:ppResultSig" - -ppPseudoFamilyHeader :: Unicode -> Qualification -> PseudoFamilyDecl DocNameI - -> 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 DocNameI -> 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 DocNameI] -> - [(DocName, Fixity)] -> SrcSpan -> Documentation DocName -> - FamilyDecl DocNameI -> Splice -> Unicode -> Maybe Package -> - Qualification -> Html -ppTyFam summary associated links instances fixities loc doc decl splice unicode - pkg qual - - | summary = ppTyFamHeader True associated decl unicode qual +-- | Print a data\/type family declaration +ppFamDecl :: Bool -- ^ is a summary + -> Bool -- ^ is an associated type + -> LinksInfo + -> [DocInstance DocNameI] -- ^ relevant instances + -> [(DocName, Fixity)] -- ^ relevant fixities + -> SrcSpan + -> Documentation DocName -- ^ this decl's documentation + -> FamilyDecl DocNameI -- ^ this decl + -> Splice -> Unicode -> Maybe Package -> Qualification -> Html +ppFamDecl summary associated links instances fixities loc doc decl splice unicode pkg qual + | summary = ppFamHeader True associated decl unicode qual | otherwise = header_ +++ docSection Nothing pkg qual doc +++ instancesBit where docname = unLoc $ fdLName decl header_ = topDeclElem links loc splice [docname] $ - ppTyFamHeader summary associated decl unicode qual <+> ppFixities fixities qual + ppFamHeader summary associated decl unicode qual <+> ppFixities fixities qual instancesBit | FamilyDecl { fdInfo = ClosedTypeFamily mb_eqns } <- decl , not summary - = subEquations pkg qual $ map (ppTyFamEqn . unLoc) $ fromMaybe [] mb_eqns + = subEquations pkg qual $ map (ppFamDeclEqn . unLoc) $ fromMaybe [] mb_eqns | otherwise = ppInstances links (OriginFamily docname) instances splice unicode pkg qual -- Individual equation of a closed type family - ppTyFamEqn :: TyFamInstEqn DocNameI -> SubDecl - ppTyFamEqn (HsIB { hsib_body = FamEqn { feqn_tycon = n, feqn_rhs = rhs - , feqn_pats = ts } }) - = ( ppAppNameTypes (unLoc n) (map unLoc ts) unicode qual + ppFamDeclEqn :: TyFamInstEqn DocNameI -> SubDecl + ppFamDeclEqn (HsIB { hsib_body = FamEqn { feqn_tycon = L _ n + , feqn_rhs = rhs + , feqn_pats = ts } }) + = ( ppAppNameTypes n (map unLoc ts) unicode qual <+> equals <+> ppType unicode qual HideEmptyContexts (unLoc rhs) - , Nothing, [] ) - ppTyFamEqn (XHsImplicitBndrs _) = panic "haddock:ppTyFam" - ppTyFamEqn (HsIB { hsib_body = XFamEqn _}) = panic "haddock:ppTyFam" - + , Nothing + , [] + ) + ppFamDeclEqn (XHsImplicitBndrs _) = panic "haddock:ppFamDecl" + ppFamDeclEqn (HsIB { hsib_body = XFamEqn _}) = panic "haddock:ppFamDecl" -ppPseudoFamilyDecl :: LinksInfo -> Splice -> Unicode -> Qualification - -> PseudoFamilyDecl DocNameI - -> Html -ppPseudoFamilyDecl links splice unicode qual - decl@(PseudoFamilyDecl { pfdLName = L loc name, .. }) = - wrapper $ ppPseudoFamilyHeader unicode qual decl +-- | Print a pseudo family declaration +ppPseudoFamDecl :: LinksInfo -> Splice + -> PseudoFamilyDecl DocNameI -- ^ this decl + -> Unicode -> Qualification -> Html +ppPseudoFamDecl links splice + (PseudoFamilyDecl { pfdInfo = info + , pfdKindSig = L _ kindSig + , pfdTyVars = tvs + , pfdLName = L loc name }) + unicode qual = + topDeclElem links loc splice [name] leader + where + leader = hsep [ ppFamilyLeader True info + , ppAppNameTypes name (map unLoc tvs) unicode qual + , ppResultSig kindSig unicode qual + ] + +-- | Print the LHS of a type\/data family declaration +ppFamHeader :: Bool -- ^ is a summary + -> Bool -- ^ is an associated type + -> FamilyDecl DocNameI -- ^ family declaration + -> Unicode -> Qualification -> Html +ppFamHeader _ _ (XFamilyDecl _) _ _ = panic "haddock;ppFamHeader" +ppFamHeader summary associated (FamilyDecl { fdInfo = info + , fdResultSig = L _ result + , fdInjectivityAnn = injectivity + , fdLName = L _ name + , fdTyVars = tvs }) + unicode qual = + hsep [ ppFamilyLeader associated info + , ppAppDocNameTyVarBndrs summary unicode qual name (hsq_explicit tvs) + , ppResultSig result unicode qual + , injAnn + , whereBit + ] where - wrapper = topDeclElem links loc splice [name] + whereBit = case info of + ClosedTypeFamily _ -> keyword "where ..." + _ -> noHtml + + injAnn = case injectivity of + Nothing -> noHtml + Just (L _ (InjectivityAnn lhs rhs)) -> hsep ( keyword "|" + : ppLDocName qual Raw lhs + : arrow unicode + : map (ppLDocName qual Raw) rhs) + +-- | Print the keywords that begin the family declaration +ppFamilyLeader :: Bool -> FamilyInfo DocNameI -> Html +ppFamilyLeader assoc info = keyword (typ ++ if assoc then "" else " family") + where + typ = case info of + OpenTypeFamily -> "type" + ClosedTypeFamily _ -> "type" + DataFamily -> "data" + +-- | Print the signature attached to a family +ppResultSig :: FamilyResultSig DocNameI -> 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 + XFamilyResultSig _ -> panic "haddock:ppResultSig" -------------------------------------------------------------------------------- @@ -399,25 +394,10 @@ ppAssocType :: Bool -> LinksInfo -> DocForDecl DocName -> LFamilyDecl DocNameI -> [(DocName, Fixity)] -> Splice -> Unicode -> Maybe Package -> Qualification -> Html ppAssocType summ links doc (L loc decl) fixities splice unicode pkg qual = - ppTyFam summ True links [] fixities loc (fst doc) decl splice unicode pkg qual + ppFamDecl summ True links [] fixities loc (fst doc) decl splice unicode pkg qual -------------------------------------------------------------------------------- --- * TyClDecl helpers --------------------------------------------------------------------------------- - --- | Print a type family and its variables -ppFamDeclBinderWithVars :: Bool -> Unicode -> Qualification -> FamilyDecl DocNameI -> Html -ppFamDeclBinderWithVars summ unicode qual (FamilyDecl { fdLName = lname, fdTyVars = tvs }) = - ppAppDocNameTyVarBndrs summ unicode qual (unLoc lname) (hsq_explicit tvs) -ppFamDeclBinderWithVars _ _ _ (XFamilyDecl _) = panic "haddock:ppFamDeclBinderWithVars" - --- | Print a newtype / data binder and its variables -ppDataBinderWithVars :: Bool -> Unicode -> Qualification -> TyClDecl DocNameI -> Html -ppDataBinderWithVars summ unicode qual decl = - ppAppDocNameTyVarBndrs summ unicode qual (tcdName decl) (hsQTvExplicit $ tcdTyVars decl) - --------------------------------------------------------------------------------- -- * Type applications -------------------------------------------------------------------------------- @@ -672,7 +652,9 @@ ppInstHead links splice unicode qual mdoc origin orphan no ihd@(InstHead {..}) m , mdoc , [subFamInstDetails iid pdecl mname]) where - pdata = keyword "data" <+> typ + nd = dd_ND (tcdDataDefn dd) + pref = case nd of { NewType -> keyword "newtype"; DataType -> keyword "data" } + pdata = pref <+> typ pdecl = pdata <+> ppShortDataDecl False True dd [] unicode qual where mname = maybe noHtml (\m -> toHtml "Defined in" <+> ppModule m) mdl @@ -684,9 +666,7 @@ ppInstanceAssocTys :: LinksInfo -> Splice -> Unicode -> Qualification -> [PseudoFamilyDecl DocNameI] -> [Html] ppInstanceAssocTys links splice unicode qual = - map ppFamilyDecl' - where - ppFamilyDecl' = ppPseudoFamilyDecl links splice unicode qual + map (\pseudo -> ppPseudoFamDecl links splice pseudo unicode qual) ppInstanceSigs :: LinksInfo -> Splice -> Unicode -> Qualification @@ -1060,10 +1040,12 @@ ppSideBySidePat fixities unicode qual lnames typ (doc, argDocs) = -- | Print the LHS of a data\/newtype declaration. -- Currently doesn't handle 'data instance' decls or kind signatures ppDataHeader :: Bool -> TyClDecl DocNameI -> Unicode -> Qualification -> Html -ppDataHeader summary decl@(DataDecl { tcdDataDefn = - HsDataDefn { dd_ND = nd - , dd_ctxt = ctxt - , dd_kindSig = ks } }) +ppDataHeader summary (DataDecl { tcdDataDefn = + HsDataDefn { dd_ND = nd + , dd_ctxt = ctxt + , dd_kindSig = ks } + , tcdLName = L _ name + , tcdTyVars = tvs }) unicode qual = -- newtype or data (case nd of { NewType -> keyword "newtype"; DataType -> keyword "data" }) @@ -1071,7 +1053,7 @@ ppDataHeader summary decl@(DataDecl { tcdDataDefn = -- context ppLContext ctxt unicode qual HideEmptyContexts <+> -- T a b c ..., or a :+: b - ppDataBinderWithVars summary unicode qual decl + ppAppDocNameTyVarBndrs summary unicode qual name (hsQTvExplicit tvs) <+> case ks of Nothing -> mempty Just (L _ x) -> dcolon unicode <+> ppKind unicode qual x @@ -1120,7 +1102,7 @@ ppHsTyVarBndr _ qual (UserTyVar _ (L _ name)) = ppHsTyVarBndr unicode qual (KindedTyVar _ name kind) = parens (ppDocName qual Raw False (unLoc name) <+> dcolon unicode <+> ppLKind unicode qual kind) -ppHsTyVarBndr _ _ (XTyVarBndr _) = error "haddock:ppHsTyVarBndr" +ppHsTyVarBndr _ _ (XTyVarBndr _) = panic "haddock:ppHsTyVarBndr" ppLKind :: Unicode -> Qualification -> LHsKind DocNameI -> Html ppLKind unicode qual y = ppKind unicode qual (unLoc y) |