diff options
Diffstat (limited to 'src/Haddock/Backends/Xhtml/Decl.hs')
-rw-r--r-- | src/Haddock/Backends/Xhtml/Decl.hs | 99 |
1 files changed, 45 insertions, 54 deletions
diff --git a/src/Haddock/Backends/Xhtml/Decl.hs b/src/Haddock/Backends/Xhtml/Decl.hs index b5ad1a8f..59be34f7 100644 --- a/src/Haddock/Backends/Xhtml/Decl.hs +++ b/src/Haddock/Backends/Xhtml/Decl.hs @@ -26,16 +26,15 @@ import Haddock.Backends.Xhtml.Utils import Haddock.GhcUtils import Haddock.Types -import Control.Monad ( join ) import Data.List ( intersperse ) import qualified Data.Map as Map +import Data.Maybe import Text.XHtml hiding ( name, title, p, quote ) import GHC import Name --- TODO: use DeclInfo DocName or something ppDecl :: Bool -> LinksInfo -> LHsDecl DocName -> DocForDecl DocName -> [DocInstance DocName] -> [(DocName, DocForDecl DocName)] -> Bool -> Qualification -> Html @@ -68,14 +67,14 @@ ppTypeOrFunSig :: Bool -> LinksInfo -> SrcSpan -> [DocName] -> HsType DocName -> DocForDecl DocName -> (Html, Html, Html) -> Bool -> Qualification -> Html ppTypeOrFunSig summary links loc docnames typ (doc, argDocs) (pref1, pref2, sep) unicode qual | summary = pref1 - | Map.null argDocs = topDeclElem links loc docnames pref1 +++ maybeDocSection qual doc + | Map.null argDocs = topDeclElem links loc docnames pref1 +++ docSection qual doc | otherwise = topDeclElem links loc docnames pref2 +++ - subArguments qual (do_args 0 sep typ) +++ maybeDocSection qual doc + subArguments qual (do_args 0 sep typ) +++ docSection qual doc where 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 :: Int -> Html -> HsType DocName -> [SubDecl] do_args n leader (HsForAllTy Explicit tvs lctxt ltype) = (leader <+> hsep (forallSymbol unicode : ppTyVars tvs ++ [dot]) <+> @@ -95,7 +94,7 @@ ppTypeOrFunSig summary links loc docnames typ (doc, argDocs) (pref1, pref2, sep) = (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, []) : [] + = [(leader <+> ppType unicode qual t, argDoc n, [])] ppTyVars :: LHsTyVarBndrs DocName -> [Html] @@ -165,12 +164,12 @@ ppTyFamHeader summary associated decl unicode qual = Nothing -> noHtml -ppTyFam :: Bool -> Bool -> LinksInfo -> SrcSpan -> Maybe (Doc DocName) -> +ppTyFam :: Bool -> Bool -> LinksInfo -> SrcSpan -> Documentation DocName -> TyClDecl DocName -> Bool -> Qualification -> Html -ppTyFam summary associated links loc mbDoc decl unicode qual +ppTyFam summary associated links loc doc decl unicode qual | summary = ppTyFamHeader True associated decl unicode qual - | otherwise = header_ +++ maybeDocSection qual mbDoc +++ instancesBit + | otherwise = header_ +++ docSection qual doc +++ instancesBit where docname = tcdName decl @@ -249,12 +248,12 @@ ppLContextNoArrow = ppContextNoArrow . unLoc ppContextNoArrow :: HsContext DocName -> Bool -> Qualification -> Html ppContextNoArrow [] _ _ = noHtml -ppContextNoArrow cxt unicode qual = pp_hs_context (map unLoc cxt) unicode qual +ppContextNoArrow cxt unicode qual = ppHsContext (map unLoc cxt) unicode qual ppContextNoLocs :: [HsType DocName] -> Bool -> Qualification -> Html ppContextNoLocs [] _ _ = noHtml -ppContextNoLocs cxt unicode qual = pp_hs_context cxt unicode qual +ppContextNoLocs cxt unicode qual = ppHsContext cxt unicode qual <+> darrow unicode @@ -262,10 +261,10 @@ ppContext :: HsContext DocName -> Bool -> Qualification -> Html ppContext cxt unicode qual = ppContextNoLocs (map unLoc cxt) unicode qual -pp_hs_context :: [HsType DocName] -> Bool -> Qualification-> Html -pp_hs_context [] _ _ = noHtml -pp_hs_context [p] unicode qual = ppType unicode qual p -pp_hs_context cxt unicode qual = parenList (map (ppType unicode qual) cxt) +ppHsContext :: [HsType DocName] -> Bool -> Qualification-> Html +ppHsContext [] _ _ = noHtml +ppHsContext [p] unicode qual = ppType unicode qual p +ppHsContext cxt unicode qual = parenList (map (ppType unicode qual) cxt) ------------------------------------------------------------------------------- @@ -279,8 +278,8 @@ ppClassHdr :: Bool -> Located [LHsType DocName] -> DocName ppClassHdr summ lctxt n tvs fds unicode qual = keyword "class" <+> (if not . null . unLoc $ lctxt then ppLContext lctxt unicode qual else noHtml) - <+> ppAppDocNameNames summ n (tyvarNames $ tvs) - <+> ppFds fds unicode qual + <+> ppAppDocNameNames summ n (tyvarNames tvs) + <+> ppFds fds unicode qual ppFds :: [Located ([DocName], [DocName])] -> Bool -> Qualification -> Html @@ -324,13 +323,13 @@ ppShortClassDecl _ _ _ _ _ _ _ = error "declaration type not supported by ppShor ppClassDecl :: Bool -> LinksInfo -> [DocInstance DocName] -> SrcSpan - -> Maybe (Doc DocName) -> [(DocName, DocForDecl DocName)] + -> Documentation DocName -> [(DocName, DocForDecl DocName)] -> TyClDecl DocName -> Bool -> Qualification -> Html -ppClassDecl summary links instances loc mbDoc subdocs +ppClassDecl summary links instances loc d subdocs decl@(ClassDecl { tcdCtxt = lctxt, tcdLName = lname, tcdTyVars = ltyvars , tcdFDs = lfds, tcdSigs = lsigs, tcdATs = ats }) unicode qual | summary = ppShortClassDecl summary links decl loc subdocs unicode qual - | otherwise = classheader +++ maybeDocSection qual mbDoc + | otherwise = classheader +++ docSection qual d +++ atBit +++ methodBit +++ instancesBit where classheader @@ -354,7 +353,7 @@ ppClassDecl summary links instances loc mbDoc subdocs -- there are different subdocs for different names in a single -- type signature? - instancesBit = ppInstances instances nm unicode qual + instancesBit = ppInstances instances nm unicode qual ppClassDecl _ _ _ _ _ _ _ _ _ = error "declaration type not supported by ppShortClassDecl" @@ -371,11 +370,8 @@ ppInstances instances baseName unicode qual <+> ppAppNameTypes n ts unicode qual -lookupAnySubdoc :: (Eq name1) => - name1 -> [(name1, DocForDecl name2)] -> DocForDecl name2 -lookupAnySubdoc n subdocs = case lookup n subdocs of - Nothing -> noDocForDecl - Just docs -> docs +lookupAnySubdoc :: Eq id1 => id1 -> [(id1, DocForDecl id2)] -> DocForDecl id2 +lookupAnySubdoc n = fromMaybe noDocForDecl . lookup n ------------------------------------------------------------------------------- @@ -388,7 +384,7 @@ ppShortDataDecl :: Bool -> LinksInfo -> SrcSpan -> TyClDecl DocName -> Bool -> Qualification -> Html ppShortDataDecl summary _links _loc dataDecl unicode qual - | [] <- cons = dataHeader + | [] <- cons = dataHeader | [lcon] <- cons, ResTyH98 <- resTy, (cHead,cBody,cFoot) <- ppShortConstrParts summary (unLoc lcon) unicode qual @@ -411,12 +407,12 @@ ppShortDataDecl summary _links _loc dataDecl unicode qual ppDataDecl :: Bool -> LinksInfo -> [DocInstance DocName] -> [(DocName, DocForDecl DocName)] -> - SrcSpan -> Maybe (Doc DocName) -> TyClDecl DocName -> Bool -> + SrcSpan -> Documentation DocName -> TyClDecl DocName -> Bool -> Qualification -> Html -ppDataDecl summary links instances subdocs loc mbDoc dataDecl unicode qual +ppDataDecl summary links instances subdocs loc doc dataDecl unicode qual | summary = ppShortDataDecl summary links loc dataDecl unicode qual - | otherwise = header_ +++ maybeDocSection qual mbDoc +++ constrBit +++ instancesBit + | otherwise = header_ +++ docSection qual doc +++ constrBit +++ instancesBit where docname = unLoc . tcdLName $ dataDecl @@ -471,7 +467,7 @@ ppShortConstrParts summary con unicode qual = case con_res con of -- (except each field gets its own line in docs, to match -- non-GADT records) RecCon fields -> (ppBinder summary occ <+> dcolon unicode <+> - ppForAll forall ltvs lcontext unicode qual <+> char '{', + ppForAll forall_ ltvs lcontext unicode qual <+> char '{', doRecordFields fields, char '}' <+> arrow unicode <+> ppLType unicode qual resTy) InfixCon arg1 arg2 -> (doGADTCon [arg1, arg2] resTy, noHtml, noHtml) @@ -479,29 +475,29 @@ ppShortConstrParts summary con unicode qual = case con_res con of where doRecordFields fields = shortSubDecls (map (ppShortField summary unicode qual) fields) doGADTCon args resTy = ppBinder summary occ <+> dcolon unicode <+> hsep [ - ppForAll forall ltvs lcontext unicode qual, + ppForAll forall_ ltvs lcontext unicode qual, ppLType unicode qual (foldr mkFunTy resTy args) ] - header_ = ppConstrHdr forall tyVars context + header_ = ppConstrHdr forall_ tyVars context occ = nameOccName . getName . unLoc . con_name $ con ltvs = con_qvars con tyVars = tyvarNames ltvs lcontext = con_cxt con context = unLoc (con_cxt con) - forall = con_explicit con + forall_ = con_explicit con mkFunTy a b = noLoc (HsFunTy a b) -- ppConstrHdr is for (non-GADT) existentials constructors' syntax ppConstrHdr :: HsExplicitFlag -> [Name] -> HsContext DocName -> Bool -> Qualification -> Html -ppConstrHdr forall tvs ctxt unicode qual +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 " ") where - ppForall = case forall of + ppForall = case forall_ of Explicit -> forallSymbol unicode <+> hsep (map ppName tvs) <+> toHtml ". " Implicit -> noHtml @@ -539,19 +535,18 @@ ppSideBySideConstr subdocs unicode qual (L _ con) = (decl, mbDoc, fieldPart) doGADTCon :: [LHsType DocName] -> Located (HsType DocName) -> Html doGADTCon args resTy = ppBinder False occ <+> dcolon unicode - <+> hsep [ppForAll forall ltvs (con_cxt con) unicode qual, + <+> hsep [ppForAll forall_ ltvs (con_cxt con) unicode qual, ppLType unicode qual (foldr mkFunTy resTy args) ] - header_ = ppConstrHdr forall tyVars context + header_ = ppConstrHdr forall_ tyVars context occ = nameOccName . getName . unLoc . con_name $ con ltvs = con_qvars con tyVars = tyvarNames (con_qvars con) context = unLoc (con_cxt con) - forall = con_explicit con + forall_ = con_explicit con -- 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. - -- 'join' is in Maybe. - mbDoc = join $ fmap fst $ lookup (unLoc $ con_name con) subdocs + mbDoc = lookup (unLoc $ con_name con) subdocs >>= combineDocumentation . fst mkFunTy a b = noLoc (HsFunTy a b) @@ -563,7 +558,7 @@ ppSideBySideField subdocs unicode qual (ConDeclField (L _ name) ltype _) = []) where -- don't use cd_fld_doc for same reason we don't use con_doc above - mbDoc = join $ fmap fst $ lookup name subdocs + mbDoc = lookup name subdocs >>= combineDocumentation . fst ppShortField :: Bool -> Bool -> Qualification -> ConDeclField DocName -> Html @@ -609,13 +604,13 @@ tupleParens _ = parenList pREC_TOP, pREC_FUN, pREC_OP, pREC_CON :: Int -pREC_TOP = (0 :: Int) -- type in ParseIface.y in GHC -pREC_FUN = (1 :: Int) -- btype in ParseIface.y in GHC - -- Used for LH arg of (->) -pREC_OP = (2 :: Int) -- Used for arg of any infix operator - -- (we don't keep their fixities around) -pREC_CON = (3 :: Int) -- Used for arg of type applicn: - -- always parenthesise unless atomic +pREC_TOP = 0 :: Int -- type in ParseIface.y in GHC +pREC_FUN = 1 :: Int -- btype in ParseIface.y in GHC + -- Used for LH arg of (->) +pREC_OP = 2 :: Int -- Used for arg of any infix operator + -- (we don't keep their fixities around) +pREC_CON = 3 :: Int -- Used for arg of type applicn: + -- always parenthesise unless atomic maybeParen :: Int -- Precedence of context -> Int -- Precedence of top-level operator @@ -657,7 +652,7 @@ ppForAll expl tvs cxt unicode qual ppr_mono_lty :: Int -> LHsType DocName -> Bool -> Qualification -> Html -ppr_mono_lty ctxt_prec ty unicode qual = ppr_mono_ty ctxt_prec (unLoc ty) unicode qual +ppr_mono_lty ctxt_prec ty = ppr_mono_ty ctxt_prec (unLoc ty) ppr_mono_ty :: Int -> HsType DocName -> Bool -> Qualification -> Html @@ -675,11 +670,7 @@ ppr_mono_ty _ (HsListTy ty) u q = brackets (ppr_mono_lty pREC_TOP ppr_mono_ty _ (HsPArrTy ty) u q = pabrackets (ppr_mono_lty pREC_TOP ty u q) ppr_mono_ty _ (HsIParamTy n ty) u q = brackets (ppIPName n <+> dcolon u <+> ppr_mono_lty pREC_TOP ty u q) ppr_mono_ty _ (HsSpliceTy {}) _ _ = error "ppr_mono_ty HsSpliceTy" -#if __GLASGOW_HASKELL__ == 612 -ppr_mono_ty _ (HsSpliceTyOut {}) _ _ = error "ppr_mono_ty HsQuasiQuoteTy" -#else ppr_mono_ty _ (HsQuasiQuoteTy {}) _ _ = error "ppr_mono_ty HsQuasiQuoteTy" -#endif ppr_mono_ty _ (HsRecTy {}) _ _ = error "ppr_mono_ty HsRecTy" 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 |