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Diffstat (limited to 'haddock-api/src/Haddock/Backends/Org.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Backends/Org.hs | 1016 |
1 files changed, 1016 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/Backends/Org.hs b/haddock-api/src/Haddock/Backends/Org.hs new file mode 100644 index 00000000..cdd95d42 --- /dev/null +++ b/haddock-api/src/Haddock/Backends/Org.hs @@ -0,0 +1,1016 @@ +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE TupleSections #-} +{-# LANGUAGE FlexibleInstances #-} +{-# LANGUAGE DeriveAnyClass #-} +{-# LANGUAGE StandaloneDeriving #-} +{-# LANGUAGE DeriveDataTypeable #-} +{-# OPTIONS_GHC -fno-warn-orphans #-} + +module Haddock.Backends.Org + ( ppOrg + , cleanPkgStr + ) where +import Control.Monad.State.Strict ( State + , evalState + , get + , put + ) +import Data.List ( intercalate + , intersperse + , isSuffixOf + , singleton + , sortOn + ) +import Data.Map ( (!?) + , toList + ) +import qualified Data.Map as M + ( empty + , map + , null + ) +import Data.Maybe ( fromMaybe ) +import Documentation.Haddock.Markup ( markup + , plainMarkup + ) +import GHC ( ConDecl(..) + , ConDeclField(..) + , FamEqn(..) + , FamilyDecl(..) + , FamilyInfo(..) + , FamilyResultSig(..) + , FieldOcc(..) + , ForeignDecl(..) + , GenLocated(..) + , HsArg(..) + , HsConDeclGADTDetails(..) + , HsConDeclH98Details + , HsConDetails(..) + , HsDataDefn(..) + , HsDecl(..) + , HsForAllTelescope(..) + , HsOuterSigTyVarBndrs + , HsOuterTyVarBndrs(..) + , HsScaled(..) + , HsSigType(..) + , HsTupleSort(..) + , HsTyLit(..) + , HsTyVarBndr(..) + , HsType(..) + , InjectivityAnn(..) + , LHsContext + , LHsKind + , LHsQTyVars(..) + , LHsTyVarBndr + , LHsType + , LInjectivityAnn + , LTyFamInstEqn + , ModuleName + , Name + , NewOrData(..) + , RdrName + , Sig(..) + , TyClDecl(..) + , dropWildCards + , getName + , hsIPNameFS + , hsQTvExplicit + , moduleNameString + , unLoc + ) +import GHC.Data.FastString ( unpackFS ) +import GHC.Types.Basic ( PromotionFlag(..) + , TopLevelFlag(..) + ) +import GHC.Types.Name ( isDataConName + , nameModule_maybe + , nameOccName + ) +import GHC.Types.Name.Occurrence ( OccName + , occNameString + ) +import GHC.Unit.Types ( GenModule(..) + , Module + , unitString + ) +import GHC.Utils.Outputable ( showPprUnsafe ) +import qualified GHC.Utils.Ppr as Pretty +import GHC.Utils.Ppr ( (<+>) + , (<>) + , comma + , hsep + , punctuate + , text + ) +import Haddock.Backends.Org.Types +import Haddock.GhcUtils ( Precedence(..) + , hsLTyVarNameI + , moduleString + , reparenTypePrec + ) +import Haddock.Types ( Doc + , DocForDecl + , DocH(..) + , DocInstance + , DocName(..) + , DocNameI + , Documentation(..) + , ExportItem(..) + , FnArgsDoc + , Header(..) + , Hyperlink(..) + , InstHead(..) + , InstType(..) + , Interface(..) + , MDoc + , MetaDoc(..) + , ModLink(..) + , Picture(..) + , TableCell(..) + , TableRow(..) + , Wrap(..) + , showWrapped + ) +import qualified Haddock.Types as HT + ( Example(..) + , Table(..) + ) +import Prelude hiding ( (<>) ) + + +type PDoc = Pretty.Doc +type ModPath = (String, String) -- (package, module) +type SubDocs = [(DocName, DocForDecl DocName)] + +packageLevel, modLevel :: Int +packageLevel = 1 +modLevel = 2 + +-- prefix for unimplemented and error +unimp, docError :: String -> String +unimp = ("UNIMP$" ++) +docError = ("ERROR$" ++) + +unimpHeading :: String -> Int -> OrgBlock +unimpHeading thing level = headingPlainText (unimp thing) level + +emptyDoc :: DocForDecl DocName +emptyDoc = (Documentation Nothing Nothing, M.empty) + +-- The main function +ppOrg :: String -> Maybe (Doc RdrName) -> String -> [Interface] -> String +ppOrg title mbPrologue pkgId = orgToString . fromOrgDocument . toOrgDocument + title + mbPrologue + (cleanPkgStr pkgId) + +toOrgDocument + :: String -> Maybe (Doc RdrName) -> String -> [Interface] -> OrgDocument +toOrgDocument title mbPrologue pkgId ifaces = + OrgDocument M.empty (processPackage title mbPrologue pkgId ifaces) + +processPackage + :: String -> Maybe (Doc RdrName) -> String -> [Interface] -> [OrgBlock] +processPackage title mbPrologue pkgId ifaces = + headingPlainTextCId title pkgId packageLevel + : Paragraph [plaintext $ maybe [] removeMarkup' mbPrologue] + : concatMap processModule (sortOn ifaceMod ifaces) + +processModule :: Interface -> [OrgBlock] +processModule iface = + let + mdl = moduleString $ ifaceMod iface + pkg = cleanPkgStr $ unitString $ moduleUnit $ ifaceMod iface + path = (pkg, mdl) + heading = headingPlainTextCId mdl (pkg ++ "." ++ mdl) modLevel + description = ppDocumentation (ifaceRnDoc iface) (Just modLevel) + exported = + evalState (mapM (processExport path) (ifaceRnExportItems iface)) modLevel + ++ [ ppDocInsts + (ifaceRnOrphanInstances iface) + "Orphan Instances" + (modLevel + 1) + ] + in + heading : description ++ concat exported + +processExport :: ModPath -> ExportItem DocNameI -> State Int [OrgBlock] +-- TODO: handle bundled patterns, fixities and splice +processExport path (ExportDecl (L _ decl) _pats docs subdocs insts _fixities _splice) + = do + baseLevel <- get + return $ ppHsDecl decl insts docs subdocs path (baseLevel + 1) +processExport _ (ExportNoDecl _ _ ) = error "ExportNoDecl" +processExport _ (ExportGroup offset _ label) = do + put $ modLevel + offset + return $ ppDocBlock (DocHeader (Header (modLevel + offset) label)) (Just 0) +processExport _ (ExportDoc mDoc) = return $ ppMDoc mDoc (Just modLevel) +processExport _ (ExportModule mdl ) = do + baseLevel <- get + return + [ Heading + (baseLevel + 1) + [plaintext "module", Whitespace, Link (text (moduleString mdl)) []] + [] + ] + +-- * To Org elements +-- ** Documentation to Org elements + +ppFnArgsDoc :: FnArgsDoc DocName -> [OrgBlock] +ppFnArgsDoc aDoc = if M.null aDoc + then [] + else ((`ppDoc` Nothing) . DocParagraph . DocString) "Arguments (in order):" + ++ ((`ppDoc` Nothing) . DocOrderedList . toList . M.map _doc) aDoc + +ppDocumentation :: Documentation DocName -> Maybe Int -> [OrgBlock] +ppDocumentation (Documentation (Just mdoc) _) minLevel = ppMDoc mdoc minLevel +ppDocumentation _ _ = [] + +ppMDoc :: MDoc DocName -> Maybe Int -> [OrgBlock] +ppMDoc (MetaDoc _ doc) = ppDoc doc + +ppDoc :: Doc DocName -> Maybe Int -> [OrgBlock] +ppDoc x l = if isBlock x then ppDocBlock x l else [Paragraph $ ppDocInline x] + +ppDocBlock :: Doc DocName -> Maybe Int -> [OrgBlock] +ppDocBlock x _ | not (isBlock x) = ppDocBlock (DocParagraph x) Nothing +ppDocBlock DocEmpty _ = [] +ppDocBlock (DocAppend x y ) l = ppDocBlock x l ++ ppDocBlock y l +ppDocBlock (DocParagraph x) _ = [Paragraph (ppDocInline x)] +ppDocBlock (DocUnorderedList docs) _ = + [PlainList Unordered $ (`ppDocBlock` Nothing) <$> docs] +ppDocBlock (DocOrderedList items) _ = + [PlainList Ordered (map ((`ppDocBlock` Nothing) . snd) items)] +ppDocBlock (DocDefList pairs) _ = + [ DefList + $ (\(term, def) -> (ppDocInline term, ppDocBlock def Nothing)) + <$> pairs + ] +ppDocBlock (DocCodeBlock doc) _ = + [SrcBlock $ text $ fixLeadingStar $ removeMarkup doc] +ppDocBlock (DocMathDisplay x) _ = [MathDisplay (text x)] +ppDocBlock (DocExamples examples) _ = + (\(HT.Example expr res) -> Example + (text (fixLeadingStar expr)) + (text $ fixLeadingStar $ intercalate "\n" res) + ) + <$> examples +ppDocBlock (DocHeader (Header level label)) (Just l) = + [Heading (level + l) (ppDocInline label) []] +ppDocBlock (DocTable (HT.Table hRows bRows)) _ = ppTable hRows bRows +ppDocBlock doc _ = [Paragraph [plaintext $ unimp "ppDocBlock: " ++ show doc]] + +ppDocInline :: Doc DocName -> [OrgInline] +ppDocInline x | isBlock x = [plaintext $ docError "BLOCK_IN_INLINE" ++ show x] +ppDocInline (DocAppend x y ) = ppDocInline x ++ ppDocInline y +ppDocInline (DocString x) = [plaintext x] +ppDocInline (DocIdentifier x) = ppWrapped ppDocName x +ppDocInline (DocIdentifierUnchecked x) = ppWrapped ppMO x +ppDocInline (DocModule (ModLink modName mbModLabel)) = + [Link (text modName) (maybe [] ppDocInline mbModLabel)] +ppDocInline (DocWarning x) = [plaintext $ unimp $ "DocWarning: " ++ show x] +ppDocInline (DocEmphasis x) = [Italic $ ppDocInline x] +ppDocInline (DocMonospaced x) = [Code $ text $ removeMarkup x] +ppDocInline (DocBold x) = [Bold $ ppDocInline x] +ppDocInline (DocHyperlink (Hyperlink url label)) = + [Link (text url) (maybe [] ppDocInline label)] +ppDocInline (DocPic (Picture url mbTitle)) = + [Link (text url) (maybe [] (singleton . plaintext) mbTitle)] +ppDocInline (DocAName x) = [Anchor (text x)] +ppDocInline (DocMathInline x) = [MathInline (text x)] +ppDocInline (DocProperty x) = [plaintext x] +ppDocInline doc = [plaintext $ unimp "ppDocInline: " ++ show doc] + +-- *** Handling tables +-- current coordinates, colspan and rowspan coordinates +type SpanState = ((Int, Int), [(Int, Int)], [(Int, Int)]) + +emptySpanState :: SpanState +emptySpanState = ((0, 0), [], []) + +-- marks for cells connected with colspan and rowspan +leftSym, upSym :: Bool -> String +leftSym True = "<" +leftSym False = "" +upSym True = "^" +upSym False = "" + +ppTable :: [TableRow (Doc DocName)] -> [TableRow (Doc DocName)] -> [OrgBlock] +ppTable header body = + [ Table (evalState (ppTable' header) emptySpanState) + (evalState (ppTable' body) emptySpanState) + ] + +ppTable' :: [TableRow (Doc DocName)] -> State SpanState [[[OrgInline]]] +ppTable' [] = return [] +ppTable' (TableRow cells : rest) = do + cur <- ppTableRow' cells + rest' <- ppTable' rest + return $ cur : rest' + +-- handle a table row, tracking colspans and rowspans +ppTableRow' :: [TableCell (Doc DocName)] -> State SpanState [[OrgInline]] +ppTableRow' [] = return [] +ppTableRow' (TableCell colspan rowspan doc : rest) = do + ((x, y), colspans, rowspans) <- get + let + left = (not . null) colspans && (x, y) `elem` colspans + up = (not . null) rowspans && (x, y) `elem` rowspans + content = if left || up + then [plaintext (leftSym left ++ upSym up)] + else ppDocInline doc + newColspans = if left + then colspans + else colspans ++ map (\i -> (x, y + i)) [1 .. colspan - 1] + newRowspans = if up + then rowspans + else rowspans ++ map (\i -> (x + i, y)) [1 .. rowspan - 1] + extraLeft = if null rest + then length (takeWhile (`elem` newColspans) (map (x, ) [y + 1 ..])) + else 0 + extraUp = if null rest + then length (takeWhile (`elem` newRowspans) (map (x, ) [y + 1 ..])) + else 0 + n = max extraLeft extraUp + lefts = replicate extraLeft True ++ replicate (n - extraLeft) False + ups = replicate extraUp True ++ replicate (n - extraUp) False + extra = zipWith (\l u -> [plaintext (leftSym l ++ upSym u)]) lefts ups + newCoord = if null rest then (x + 1, 0) else (x, y + 1) + put (newCoord, newColspans, newRowspans) + rest' <- ppTableRow' rest + return $ content : extra ++ rest' + +-- ** AST to Org elements + +ppHsDecl + :: HsDecl DocNameI + -> [DocInstance DocNameI] + -> DocForDecl DocName + -> SubDocs + -> ModPath + -> Int + -> [OrgBlock] +ppHsDecl (TyClD _ decl) insts docs subdocs path level = + ppTyClDecl decl docs subdocs path level + ++ ppDocInsts insts "Instances:" (level + 1) +ppHsDecl (SigD _ sig) _ docs subdocs path level = + ppSig sig docs subdocs path level +ppHsDecl (ForD _ for) _ docs _ path level = ppForeignDecl for docs path level +ppHsDecl _ _ docs _ _ level = + unimpHeading "HsDecl" level : ppDocForDecl docs (Just level) + +ppForeignDecl + :: ForeignDecl DocNameI -> DocForDecl DocName -> ModPath -> Int -> [OrgBlock] +ppForeignDecl (ForeignImport _ (L _ name) (L _ sigType) _) docs path level = + Heading level + (Plain (docNameToDoc name) : plaintext " :: " : ppHsSigType sigType) + (cIdPaths path name) + : ppDocForDecl docs (Just level) +ppForeignDecl _ docs _ level = + unimpHeading "ForeignDecl" level : ppDocForDecl docs (Just level) + +ppDocInsts :: [DocInstance DocNameI] -> String -> Int -> [OrgBlock] +ppDocInsts [] _ _ = [] +ppDocInsts insts heading level = + [headingPlainText heading level, PlainList Unordered (map ppDocInst insts)] + +ppDocInst :: DocInstance DocNameI -> [OrgBlock] +ppDocInst (InstHead clsName types (ClassInst {..}), mbMdoc, _docName, _mbMod) = + prependInlinesToBlocks + ( interNotNull + [Whitespace] + [ ppContext clsiCtx + , ppDocName clsName + , intercalate [Whitespace] + (map (ppHsType . reparenTypePrec PREC_CON) types) + ] + ++ if mbMDocHasDoc mbMdoc + then + [Whitespace, plaintext "::", Whitespace] + else + [] + ) + (maybe [] (`ppMDoc` Nothing) mbMdoc) +ppDocInst (InstHead clsName types (TypeInst mbRhs), mbMdoc, _docName, _mbMod) = + prependInlinesToBlocks + ( plaintext "type " + : ppDocName clsName + ++ [Whitespace] + ++ intercalate [Whitespace] + (map (ppHsType . reparenTypePrec PREC_CON) types) + ++ maybe + [] + (\ty -> plaintext " = " : ppHsType (reparenTypePrec PREC_TOP ty)) + mbRhs + ++ if mbMDocHasDoc mbMdoc + then [Whitespace, plaintext "::", Whitespace] + else [] + ) + (maybe [] (`ppMDoc` Nothing) mbMdoc) +-- TODO: add decl +ppDocInst (InstHead clsName types (DataInst _decl), mbMdoc, _docName, _mbMod) = + prependInlinesToBlocks + ( plaintext "data " + : ppDocName clsName + ++ [Whitespace] + ++ intercalate [Whitespace] + (map (ppHsType . reparenTypePrec PREC_CON) types) + ++ if mbMDocHasDoc mbMdoc + then [Whitespace, plaintext "::", Whitespace] + else [] + ) + (maybe [] (`ppMDoc` Nothing) mbMdoc) + +mbMDocHasDoc :: Maybe (MDoc DocName) -> Bool +mbMDocHasDoc Nothing = False +mbMDocHasDoc (Just (MetaDoc _ DocEmpty)) = False +mbMDocHasDoc _ = True + +parensIfMany :: [a] -> [OrgInline] -> [OrgInline] +parensIfMany xs org = if length xs > 1 then orgParens org else org + +dcSuffix :: DocName -> String +dcSuffix name = if isDataConName (getName name) then ":dc" else "" + +idPath :: ModPath -> DocName -> String +idPath (pkg, mdl) name = + pkg ++ "." ++ mdl ++ "." ++ docNameToString name ++ dcSuffix name + +idPath' :: Module -> DocName -> String +idPath' mdl name = + idPath (cleanPkgStr $ unitString $ moduleUnit mdl, moduleString mdl) name + +idPathNoPkg :: String -> DocName -> String +idPathNoPkg mdl name = mdl ++ "." ++ docNameToString name ++ dcSuffix name + +cIdPaths :: ModPath -> DocName -> Properties +cIdPaths path@(_, mdl) name = cIdsProp [idPath path name, idPathNoPkg mdl name] + +ppTyClDecl + :: TyClDecl DocNameI + -> DocForDecl DocName + -> SubDocs + -> ModPath + -> Int + -> [OrgBlock] +-- data T a b +-- newtype T a b +-- TODO: handle fixity +ppTyClDecl (DataDecl _ (L _ name) tcdTyVars _ defn@(HsDataDefn { dd_ND = nd, dd_cons = cons })) docs subdocs path level + = [ Heading + level + ( Plain + ((ppNewOrData nd) <+> (docNameToDoc name) <+> hsep + (ppName <$> tyvarNames tcdTyVars) + ) + : if gadt then [plaintext " where"] else [] + ) + (cIdPaths path name) + ] + ++ ppDocForDecl docs (Just level) + ++ ppDataDefn defn subdocs path (level + 1) + where + gadt = case cons of + [] -> False + L _ ConDeclGADT{} : _ -> True + _ -> False +ppTyClDecl (DataDecl{}) docs _ _ level = + unimpHeading "DataDecl" level : ppDocForDecl docs (Just level) +-- type T a b +ppTyClDecl (SynDecl _ (L _ name) tcdTyVars _fixity (L _ rhs)) docs _ path level + = [ Heading + level + ( intersperse + Whitespace + ( [plaintext "type", Plain $ docNameToDoc name] + ++ map (Plain . ppName) (tyvarNames tcdTyVars) + ++ [Plain $ text "= "] + ) + ++ ppHsType rhs + ) + (cIdPaths path name) + ] + ++ ppDocForDecl docs (Just level) +-- class +ppTyClDecl (ClassDecl {..}) docs subdocs path level = + [ Heading + level + (interNotNull + [Whitespace] + [ [plaintext "class"] + , ppMbLHsContext tcdCtxt + , (singleton . Plain . docNameToDoc . unLoc) tcdLName + , intersperse Whitespace (map (Plain . ppName) (tyvarNames tcdTyVars)) + ] + ) + (cIdPaths path (unLoc tcdLName)) + ] + ++ ppDocForDecl docs (Just level) + -- TODO: do we need an aDoc here instead of M.empty? + -- TODO: handle default sigs + ++ concatMap + ((\sig -> ppSig sig emptyDoc subdocs path (level + 1)) . unLoc) + tcdSigs +-- type family ... where +-- TODO: handle infix +ppTyClDecl (FamDecl _ (FamilyDecl _ (ClosedTypeFamily mbEqns) TopLevel (L _ name) tyvars _fixity (L _ resSig) mbInj)) docs subdocs path level + = Heading + level + ( [plaintext "type family ", Plain $ docNameToDoc name, Whitespace] + ++ ppLHsQTyVars tyvars + ++ ppFamilyResultSig resSig "=" + ++ maybe [] ppLInjectivityAnn mbInj + ++ [plaintext " where"] + ) + (cIdPaths path name) + : ppDocForDecl docs (Just level) + ++ concatMap (\x -> ppLTyFamInstEqn x subdocs path (level + 1)) + (fromMaybe [] mbEqns) +-- data family +-- type family +-- DataFamily or OpenTypeFamily +ppTyClDecl (FamDecl _ (FamilyDecl _ info TopLevel (L _ name) tyvars _fixity (L _ resSig) mbInj)) docs _ path level + = Heading + level + ( [pre, Plain $ docNameToDoc name, Whitespace] + ++ ppLHsQTyVars tyvars + ++ ppFamilyResultSig resSig op + ++ maybe [] ppLInjectivityAnn mbInj + ) + (cIdPaths path name) + : ppDocForDecl docs (Just level) + where + pre = case info of + DataFamily -> plaintext "data family " + OpenTypeFamily -> plaintext "type family " + op = case info of + DataFamily -> "::" + _ -> "=" +ppTyClDecl (FamDecl{}) docs _ _ level = + unimpHeading "FamDecl" level : ppDocForDecl docs (Just level) + +ppLTyFamInstEqn + :: LTyFamInstEqn DocNameI -> SubDocs -> ModPath -> Int -> [OrgBlock] +ppLTyFamInstEqn (L _ (FamEqn _ (L _ name) _ tyPats _fixity rhs)) subdocs _ level + = Heading + level + (interNotNull + [Whitespace] + [ ppDocName name + , intercalate [Whitespace] (map ppHsArg tyPats) + , [plaintext "="] + , ppLHsType (reparenTypePrec PREC_TOP <$> rhs) + ] + ) + [] + : maybe [] (`ppDocForDecl` (Just level)) (lookup name subdocs) + +ppHsArg :: HsArg (LHsType DocNameI) (LHsKind DocNameI) -> [OrgInline] +ppHsArg (HsValArg ty) = ppLHsType (reparenTypePrec PREC_CON <$> ty) +ppHsArg _ = [plaintext $ unimp "HsArg"] + +ppLInjectivityAnn :: LInjectivityAnn DocNameI -> [OrgInline] +ppLInjectivityAnn (L _ (InjectivityAnn _ (L _ l) rs)) = + [ plaintext " | " + , Plain $ docNameToDoc l + , plaintext " -> " + , Plain $ hsep $ map (docNameToDoc . unLoc) rs + ] +ppLInjectivityAnn _ = [plaintext $ unimp "LInjectivityAnn"] + +ppFamilyResultSig :: FamilyResultSig DocNameI -> String -> [OrgInline] +ppFamilyResultSig (KindSig _ (L _ x)) op = + [Whitespace, plaintext op, Whitespace] ++ ppHsType x +ppFamilyResultSig (NoSig{}) _ = [] +ppFamilyResultSig (TyVarSig _ x) op = + [Whitespace, plaintext op, Whitespace] ++ ppLHsTyVarBndr x + +ppDataDefn :: HsDataDefn DocNameI -> SubDocs -> ModPath -> Int -> [OrgBlock] +ppDataDefn (HsDataDefn _ _ _ _ _ cons _derivs) subdocs path level = + concatMap ((\con -> ppConDecl con subdocs path level) . unLoc) cons +ppDataDefn _ _ _ level = [unimpHeading "DataDecl" level] + +ppConDecl :: ConDecl DocNameI -> SubDocs -> ModPath -> Int -> [OrgBlock] +-- T1 a Int +-- TODO: handle infix +ppConDecl (ConDeclH98 _ (L _ docName) _forall exTvs mbCtxt args _) subdocs path level + = Heading + level + (interNotNull + [Whitespace] + [ ppForAll exTvs + , ppMbLHsContext mbCtxt + , [Plain (docNameToDoc docName)] + , prefixOnly + ] + ) + (cIdPaths path docName) + : case lookup docName subdocs of + Just (doc, aDoc) -> + prefixWithDocs aDoc ++ ppDocumentation doc (Just level) + Nothing -> [] + ++ ppConDeclRecCon args subdocs path (level + 1) + where + prefixOnly = case args of + PrefixCon _ args' -> interNotNull [Whitespace] (map ppHsScaled args') + RecCon _ -> [plaintext "{"] + _ -> [] + prefixWithDocs :: FnArgsDoc DocName -> [OrgBlock] + prefixWithDocs aDoc = if M.null aDoc + then [] + else case args of + PrefixCon _ args' -> + [ Paragraph [plaintext "Arguments:"] + , DefList + (map (\(i, arg) -> (ppHsScaled arg, ppADoc aDoc i)) (zip [1 ..] args') + ) + ] + _ -> ppFnArgsDoc aDoc +-- TODO: handle con_bndrs and con_mb_cxt +ppConDecl (ConDeclGADT _ names _ _ args resTy _) subdocs path level = + [ Heading + level + ( interNotNull + [Whitespace] + [ intersperse (Plain $ text ", ") + (map (Plain . docNameToDoc . unLoc) names) + , [plaintext "::"] + ] + ++ [Whitespace] + ++ ppConDeclGADTDetailsPrefix args resTy + ) + (concatMap (cIdPaths path . unLoc) names) + ] + ++ maybe [] + (`ppDocForDecl` (Just level)) + (lookup (unLoc $ head names) subdocs) + ++ ppConDeclGADTDetailsRec args resTy subdocs path (level + 1) + + +ppForAll :: [LHsTyVarBndr a DocNameI] -> [OrgInline] +ppForAll [] = [] +ppForAll xs = + intercalate [Whitespace] ([plaintext "forall"] : map ppLHsTyVarBndr xs) + ++ [plaintext "."] + +ppConDeclGADTDetailsPrefix + :: HsConDeclGADTDetails DocNameI -> LHsType DocNameI -> [OrgInline] +ppConDeclGADTDetailsPrefix (PrefixConGADT args) resTy = + intercalate [plaintext " -> "] (map ppHsScaled args ++ [ppLHsType resTy]) +ppConDeclGADTDetailsPrefix (RecConGADT{}) _ = [plaintext "{"] + +ppConDeclGADTDetailsRec + :: HsConDeclGADTDetails DocNameI + -> LHsType DocNameI + -> SubDocs + -> ModPath + -> Int + -> [OrgBlock] +ppConDeclGADTDetailsRec (RecConGADT (L _ args)) resTy subdocs path level = + concatMap (\arg -> ppConDeclField (unLoc arg) subdocs path level) args + ++ [Heading level (plaintext "} -> " : ppLHsType resTy) []] +ppConDeclGADTDetailsRec _ _ _ _ _ = [] + +ppConDeclRecCon + :: HsConDeclH98Details DocNameI -> SubDocs -> ModPath -> Int -> [OrgBlock] +ppConDeclRecCon (RecCon (L _ args)) subdocs path level = + concatMap (\arg -> ppConDeclField (unLoc arg) subdocs path level) args +ppConDeclRecCon _ _ _ _ = [] + +ppConDeclField + :: ConDeclField DocNameI -> SubDocs -> ModPath -> Int -> [OrgBlock] +ppConDeclField (ConDeclField _ names (L _ ty) _) subdocs path level = + [ Heading + level + (interNotNull + [Whitespace] + [ intersperse + (Plain $ text ", ") + (map (Plain . docNameToDoc . fieldOccDocName . unLoc) names) + , [plaintext "::"] + , ppHsType ty + ] + ) + (concatMap (cIdPaths path . fieldOccDocName . unLoc) names) + ] + ++ maybe [] (`ppDocForDecl` (Just level)) (lookup docName subdocs) + where docName = (fieldOccDocName . unLoc . head) names + +fieldOccDocName :: FieldOcc DocNameI -> DocName +fieldOccDocName (FieldOcc docName _) = docName + +-- TODO: handle linear types +ppHsScaled :: HsScaled DocNameI (LHsType DocNameI) -> [OrgInline] +ppHsScaled (HsScaled _ (L _ ty)) = ppHsType ty + +ppSig + :: Sig DocNameI + -> DocForDecl DocName + -> SubDocs + -> ModPath + -> Int + -> [OrgBlock] +-- toplevel decl e.g. f :: Int -> String +ppSig (TypeSig _ lhs rhs) (doc, aDoc) _ path level = + Heading + level + ( [ Plain (hsep $ punctuate comma $ docNameToDoc . unLoc <$> lhs) + , Whitespace + , plaintext "::" + , Whitespace + ] + ++ (ppHsSigType hsSig) + ) + (concatMap (cIdPaths path . unLoc) lhs) + : (if M.null aDoc then [] else ppHsSigTypeDoc hsSig aDoc) + ++ ppDocumentation doc (Just level) + where hsSig = unLoc (dropWildCards rhs) +-- class method decl +ppSig (ClassOpSig _ _ names (L _ sigType)) _ subdocs path level = + [ Heading + level + ( [ Plain (hsep $ punctuate comma $ docNameToDoc . unLoc <$> names) + , Whitespace + , plaintext "::" + , Whitespace + ] + ++ ppHsSigType sigType + ) + (concatMap (cIdPaths path . unLoc) names) + ] + ++ case lookup (unLoc (head names)) subdocs of + Just (doc, aDoc) -> + (if M.null aDoc then [] else ppHsSigTypeDoc sigType aDoc) + ++ ppDocumentation doc (Just level) + Nothing -> [] +ppSig (PatSynSig _ names (L _ hsSig)) (doc, aDoc) _ path level = + Heading + level + ( [ plaintext "pattern " + , Plain (hsep $ punctuate comma $ docNameToDoc . unLoc <$> names) + , Whitespace + , plaintext "::" + , Whitespace + ] + ++ (ppHsSigType hsSig) + ) + (concatMap (cIdPaths path . unLoc) names) + : (if M.null aDoc then [] else ppHsSigTypeDoc hsSig aDoc) + ++ ppDocumentation doc (Just level) + +-- TODO: every class's sigs start with a MinimalSig +ppSig (MinimalSig{}) _ _ _ _ = [] +ppSig _ _ _ _ level = [headingPlainText (unimp "Sig") level] + +ppNewOrData :: NewOrData -> PDoc +ppNewOrData NewType = text "newtype" +ppNewOrData DataType = text "data" + +ppHsSigType :: HsSigType DocNameI -> [OrgInline] +ppHsSigType (HsSig _ bndrs (L _ ty)) = interNotNull + [Whitespace] + [ppHsOuterSigTyVarBndrs bndrs, ppHsType (reparenTypePrec PREC_TOP ty)] + +ppHsOuterSigTyVarBndrs :: HsOuterSigTyVarBndrs DocNameI -> [OrgInline] +ppHsOuterSigTyVarBndrs bndrs = case bndrs of + HsOuterExplicit _ tyVarBndrs -> ppForAll tyVarBndrs + _ -> [] + +ppHsSigTypeDoc :: HsSigType DocNameI -> FnArgsDoc DocName -> [OrgBlock] +ppHsSigTypeDoc (HsSig _ bndrs (L _ ty)) adoc = + [Paragraph [plaintext "Arguments:"], DefList (forall ++ ppHsTypeDoc ty 0)] + where + ppHsTypeDoc :: HsType DocNameI -> Int -> [DefListItem] + ppHsTypeDoc (HsFunTy _ _ (L _ lTy) (L _ rTy)) i = + ppHsTypeDoc lTy i ++ ppHsTypeDoc rTy (i + 1) + ppHsTypeDoc (HsQualTy _ mbCtxt (L _ body)) i = + (ppMbLHsContext mbCtxt, []) : ppHsTypeDoc body i + ppHsTypeDoc (HsForAllTy _ tele (L _ body)) i = + (ppHsForAllTelescope tele ++ [plaintext "."], []) : ppHsTypeDoc body i + ppHsTypeDoc typ i = [(ppHsType typ, ppADoc adoc i)] + forall = case ppHsOuterSigTyVarBndrs bndrs of + [] -> [] + is -> [(is, [])] + +ppDocForDecl :: DocForDecl DocName -> Maybe Int -> [OrgBlock] +ppDocForDecl (doc, adoc) l = ppFnArgsDoc adoc ++ ppDocumentation doc l + +ppADoc :: FnArgsDoc DocName -> Int -> [OrgBlock] +ppADoc adoc i = case adoc !? i of + Nothing -> [] + Just mdoc -> ppMDoc mdoc Nothing + +ppHsType :: HsType DocNameI -> [OrgInline] +-- e.g. -> forall d. d +ppHsType (HsForAllTy _ tele (L _ body)) = + ppHsForAllTelescope tele ++ [plaintext ".", Whitespace] ++ ppHsType body +-- e.g. forall a. Ord a => a +ppHsType (HsQualTy _ mbCtxt (L _ body)) = + interNotNull [Whitespace] [ppMbLHsContext mbCtxt, ppHsType body] +-- e.g. Bool +ppHsType (HsTyVar _ promo (L _ docName)) = + ppPromoted promo ++ ppDocName docName +-- e.g. IO () +ppHsType (HsAppTy _ (L _ lTy) (L _ rTy)) = + ppHsType lTy ++ [Whitespace] ++ ppHsType rTy +ppHsType (HsAppKindTy _ _ _) = [plaintext $ unimp "HsAppKindTy"] +ppHsType (HsFunTy _ _ (L _ lTy) (L _ rTy)) = + ppHsType lTy ++ [Whitespace, plaintext "->", Whitespace] ++ ppHsType rTy +-- e.g. [a] +ppHsType (HsListTy _ (L _ ty) ) = orgBrackets $ ppHsType ty +-- e.g. () +-- e.g. (a, b) +ppHsType (HsTupleTy _ sort tys) = orgParens $ maybeUnbox $ intercalate + [plaintext ",", Whitespace] + (ppHsType . unLoc <$> tys) + where + maybeUnbox = case sort of + HsUnboxedTuple -> orgUnbox + HsBoxedOrConstraintTuple -> id +-- e.g. (# a | b #) +ppHsType (HsSumTy _ tys) = + orgParens . orgUnbox $ intercalate [plaintext " | "] (map ppLHsType tys) +ppHsType (HsOpTy _ (L _ lTy) (L _ docName) (L _ rTy)) = + intercalate [Whitespace] [ppHsType lTy, ppDocName docName, ppHsType rTy] +-- e.g. (a -> a) +ppHsType (HsParTy _ (L _ t)) = orgParens $ ppHsType t +-- e.g. ?callStack :: CallStack +ppHsType (HsIParamTy _ (L _ name) ty) = + (plaintext $ '?' : unpackFS (hsIPNameFS name)) + : plaintext " :: " + : ppLHsType ty +ppHsType (HsStarTy _ _) = [plaintext "*"] +-- e.g. (a :: k) +ppHsType (HsKindSig _ (L _ t) (L _ k)) = + ppHsType t ++ [plaintext " :: "] ++ ppHsType k +ppHsType (HsSpliceTy _ _ ) = [plaintext $ unimp "HsSpliceTy"] +-- e.g. -> a -- ^ Second argument +-- The third arg in docty is HsDocString +ppHsType (HsDocTy _ (L _ t) _ ) = ppHsType t +ppHsType (HsBangTy _ _ (L _ ty) ) = plaintext "!" : ppHsType ty +ppHsType (HsRecTy _ _ ) = [plaintext $ unimp "HsRecTy"] +-- TODO: is it possible that promo is NotPromoted? If so what is the difference +-- from a vanilla list (cf ExplicitTuple does not have a promo flag)? +ppHsType (HsExplicitListTy _ promo tys) = ppPromoted promo + ++ orgBrackets (intercalate [plaintext ", "] (map ppLHsType tys)) +ppHsType (HsExplicitTupleTy _ tys) = + plaintext "'" : orgParens (intercalate [plaintext ", "] (map ppLHsType tys)) +ppHsType (HsTyLit _ lit) = [plaintext $ shown] + where + shown = case lit of + HsNumTy _ x -> show x + HsStrTy _ x -> show x + HsCharTy _ x -> show x +ppHsType (HsWildCardTy _) = [plaintext "_"] +ppHsType _ = [plaintext $ unimp "HsType"] + +ppLHsType :: LHsType DocNameI -> [OrgInline] +ppLHsType (L _ x) = ppHsType x + +ppMbLHsContext :: Maybe (LHsContext DocNameI) -> [OrgInline] +ppMbLHsContext = maybe [] (ppContext . map unLoc . unLoc) + +ppContext :: [HsType DocNameI] -> [OrgInline] +ppContext [] = [] +ppContext ctx = + parensIfMany ctx (intercalate [plaintext ",", Whitespace] (map ppHsType ctx)) + ++ [Whitespace, plaintext "=>"] + +ppPromoted :: PromotionFlag -> [OrgInline] +ppPromoted flag = case flag of + NotPromoted -> [] + IsPromoted -> [plaintext "'"] + +ppDocName :: DocName -> [OrgInline] +ppDocName docName@(Documented _ mdl) = + [Link (text "#" <> text (idPath' mdl docName)) [Plain $ docNameToDoc docName]] +ppDocName docName@(Undocumented name) = case nameModule_maybe name of + Nothing -> [Plain $ docNameToDoc docName] + Just mdl -> ppDocName (Documented name mdl) + +-- TODO: determine whether it's a subordinate based on NameSpace +ppMO :: (ModuleName, OccName) -> [OrgInline] +ppMO (mdl, occ) = + [ Link (text $ "#" ++ moToString (mdl, occ)) + [plaintext $ moToString (mdl, occ)] + ] + +ppHsForAllTelescope :: HsForAllTelescope DocNameI -> [OrgInline] +ppHsForAllTelescope (HsForAllInvis _ bndrs) = + intercalate [Whitespace] ([plaintext "forall"] : map ppLHsTyVarBndr bndrs) +ppHsForAllTelescope _ = [plaintext $ unimp "HsForAllTelescope"] + +ppLHsTyVarBndr :: LHsTyVarBndr a DocNameI -> [OrgInline] +ppLHsTyVarBndr (L _ x) = ppHsTyVarBndr x + +ppHsTyVarBndr :: HsTyVarBndr a DocNameI -> [OrgInline] +ppHsTyVarBndr (UserTyVar _ _ (L _ docName)) = [Plain $ docNameToDoc docName] +ppHsTyVarBndr (KindedTyVar _ _ (L _ docName) (L _ ty)) = + orgParens $ Plain (docNameToDoc docName) : plaintext " :: " : ppHsType ty + +ppOccName :: OccName -> PDoc +ppOccName = text . occNameString + +ppName :: Name -> PDoc +ppName = ppOccName . nameOccName + +docNameToDoc :: DocName -> PDoc +docNameToDoc = ppName . getName + +docNameToString :: DocName -> String +docNameToString = occNameString . nameOccName . getName + +ppWrapped :: (a -> [OrgInline]) -> Wrap a -> [OrgInline] +ppWrapped p (Unadorned n) = p n +ppWrapped p (Parenthesized n) = orgParens $ p n +ppWrapped p (Backticked n) = plaintext "`" : p n ++ [plaintext "`"] + +wrapDocNameToString :: Wrap DocName -> String +wrapDocNameToString = showWrapped docNameToString + +wrapMOToString :: Wrap (ModuleName, OccName) -> String +wrapMOToString = showWrapped moToString + +moToString :: (ModuleName, OccName) -> String +moToString (mdl, occ) = moduleNameString mdl ++ "." ++ occNameString occ + +removeMarkup :: Doc DocName -> String +removeMarkup = markup (plainMarkup wrapMOToString wrapDocNameToString) + +removeMarkup' :: Doc RdrName -> String +removeMarkup' = markup (plainMarkup wrapMOToString (showWrapped showPprUnsafe)) + +orgUnbox :: [OrgInline] -> [OrgInline] +orgUnbox xs = interNotNull [Whitespace] [[plaintext "#"], xs, [plaintext "#"]] + +-- * Utilities + +interNotNull :: [a] -> [[a]] -> [a] +interNotNull xs = intercalate xs . filter (not . null) + +tyvarNames :: LHsQTyVars DocNameI -> [Name] +tyvarNames = map (getName . hsLTyVarNameI) . hsQTvExplicit + +ppLHsQTyVars :: LHsQTyVars DocNameI -> [OrgInline] +ppLHsQTyVars (HsQTvs _ bndrs) = + intercalate [Whitespace] (map ppLHsTyVarBndr bndrs) +ppLHsQTyVars _ = [plaintext $ unimp "LHsQTyVars"] + +isBlock :: DocH mod id -> Bool +isBlock DocEmpty = True +isBlock (DocAppend x y ) = isBlock x || isBlock y +isBlock (DocString _) = False +isBlock (DocParagraph _) = True +isBlock (DocIdentifier _) = False +isBlock (DocIdentifierUnchecked _) = False +isBlock (DocModule _) = False +isBlock (DocWarning _) = False +isBlock (DocEmphasis _) = False +isBlock (DocMonospaced _) = False +isBlock (DocBold _) = False +isBlock (DocUnorderedList _) = True +isBlock (DocOrderedList _) = True +isBlock (DocDefList _) = True +isBlock (DocCodeBlock _) = True +isBlock (DocHyperlink _) = False +isBlock (DocPic _) = False +isBlock (DocMathInline _) = False +isBlock (DocMathDisplay _) = True +isBlock (DocAName _) = False +isBlock (DocProperty _) = False +isBlock (DocExamples _) = True +isBlock (DocHeader _) = True +isBlock (DocTable _) = True + +cleanPkgStr :: String -> String +cleanPkgStr = removeHash . removeInplace + +removeInplace :: String -> String +removeInplace s | isSuffixOf "-inplace" s = take (length s - 8) s +removeInplace s = s + +-- A silly heuristic that removes the last 65 chars if the string is longer than 65 chars +-- useful for removing hash from a unit id string like +-- sqlite-simple-0.4.18.2-fe5243655374e8f6ef336683926e98123d2de2f3265d2b935e0897c09586970b +removeHash :: String -> String +removeHash s | length s > 65 = take (length s - 65) s +removeHash s = s + +hackageUrl :: String -> String -> String -> Bool -> String +-- module should be of the form GHC-Hs-Decls instead of GHC.Hs.Decls +hackageUrl pkg mdl id isSub = + "https://hackage.haskell.org/package/" + ++ pkg + ++ "/docs/" + ++ mdl + ++ ".html#" + ++ if isSub then "v" else "t" ++ ":" ++ id + +-- * Orphan instances for show + +instance Show DocName where + show = showPprUnsafe + +instance Show OccName where + show = showPprUnsafe |