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-rw-r--r--src/Haddock/Syntax/Rename.hs333
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diff --git a/src/Haddock/Syntax/Rename.hs b/src/Haddock/Syntax/Rename.hs
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--- a/src/Haddock/Syntax/Rename.hs
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---
--- Haddock - A Haskell Documentation Tool
---
--- (c) Simon Marlow 2003
---
-
-
-module Haddock.Syntax.Rename (
- runRnFM, -- the monad (instance of Monad)
- renameDoc, renameMaybeDoc, renameExportItems,
-) where
-
-
-import Haddock.Types
-
-import GHC hiding ( NoLink )
-import Name
-import BasicTypes
-import SrcLoc
-import Bag ( emptyBag )
-
-import Data.Map ( Map )
-import qualified Data.Map as Map hiding ( Map )
-import Prelude hiding ( mapM )
-import Data.Traversable ( mapM )
-import Control.Arrow
-
-
--- -----------------------------------------------------------------------------
--- Monad for renaming
-
--- The monad does two things for us: it passes around the environment for
--- renaming, and it returns a list of names which couldn't be found in
--- the environment.
-
-newtype GenRnM n a =
- RnM { unRn :: (n -> (Bool, DocName)) -- name lookup function
- -> (a,[n])
- }
-
-type RnM a = GenRnM Name a
-
-instance Monad (GenRnM n) where
- (>>=) = thenRn
- return = returnRn
-
-returnRn :: a -> GenRnM n a
-returnRn a = RnM (\_ -> (a,[]))
-thenRn :: GenRnM n a -> (a -> GenRnM n b) -> GenRnM n b
-m `thenRn` k = RnM (\lkp -> case unRn m lkp of
- (a,out1) -> case unRn (k a) lkp of
- (b,out2) -> (b,out1++out2))
-
-getLookupRn :: RnM (Name -> (Bool, DocName))
-getLookupRn = RnM (\lkp -> (lkp,[]))
-outRn :: Name -> RnM ()
-outRn name = RnM (\_ -> ((),[name]))
-
-lookupRn :: (DocName -> a) -> Name -> RnM a
-lookupRn and_then name = do
- lkp <- getLookupRn
- case lkp name of
- (False,maps_to) -> do outRn name; return (and_then maps_to)
- (True, maps_to) -> return (and_then maps_to)
-
-newtype OrdName = MkOrdName Name
-
-instance Eq OrdName where
- (MkOrdName a) == (MkOrdName b) = a == b
-
-instance Ord OrdName where
- (MkOrdName a) `compare` (MkOrdName b) = nameOccName a `compare` nameOccName b
-
-runRnFM :: Map Name Name -> RnM a -> (a,[Name])
-runRnFM env rn = unRn rn lkp
- where
- lkp n = case Map.lookup (MkOrdName n) ordEnv of
- Nothing -> (False, NoLink n)
- Just (MkOrdName q) -> (True, Link q)
-
- ordEnv = Map.fromList . map (MkOrdName *** MkOrdName) . Map.toList $ env
-
--- -----------------------------------------------------------------------------
--- Renaming
-
-keep n = NoLink n
-keepL (L loc n) = L loc (NoLink n)
-
-rename = lookupRn id
-renameL (L loc name) = return . L loc =<< rename name
-
-renameExportItems :: [ExportItem Name] -> RnM [ExportItem DocName]
-renameExportItems items = mapM renameExportItem items
-
-renameMaybeDoc :: Maybe (HsDoc Name) -> RnM (Maybe (HsDoc DocName))
-renameMaybeDoc mbDoc = mapM renameDoc mbDoc
-
-renameLDoc (L loc doc) = return . L loc =<< renameDoc doc
-
-renameDoc :: HsDoc Name -> RnM (HsDoc DocName)
-renameDoc doc = case doc of
- DocEmpty -> return DocEmpty
- DocAppend a b -> do
- a' <- renameDoc a
- b' <- renameDoc b
- return (DocAppend a' b')
- DocString str -> return (DocString str)
- DocParagraph doc -> do
- doc' <- renameDoc doc
- return (DocParagraph doc')
- DocIdentifier ids -> do
- lkp <- getLookupRn
- case [ n | (True, n) <- map lkp ids ] of
- ids'@(_:_) -> return (DocIdentifier ids')
- [] -> return (DocIdentifier (map NoLink ids))
- DocModule str -> return (DocModule str)
- DocEmphasis doc -> do
- doc' <- renameDoc doc
- return (DocEmphasis doc')
- DocMonospaced doc -> do
- doc' <- renameDoc doc
- return (DocMonospaced doc')
- DocUnorderedList docs -> do
- docs' <- mapM renameDoc docs
- return (DocUnorderedList docs')
- DocOrderedList docs -> do
- docs' <- mapM renameDoc docs
- return (DocOrderedList docs')
- DocDefList docs -> do
- docs' <- mapM (\(a,b) -> do
- a' <- renameDoc a
- b' <- renameDoc b
- return (a',b')) docs
- return (DocDefList docs')
- DocCodeBlock doc -> do
- doc' <- renameDoc doc
- return (DocCodeBlock doc')
- DocURL str -> return (DocURL str)
- DocAName str -> return (DocAName str)
-
-renameLPred (L loc p) = return . L loc =<< renamePred p
-
-renamePred :: HsPred Name -> RnM (HsPred DocName)
-renamePred (HsClassP name types) = do
- name' <- rename name
- types' <- mapM renameLType types
- return (HsClassP name' types')
-renamePred (HsIParam (IPName name) t) = do
- name' <- rename name
- t' <- renameLType t
- return (HsIParam (IPName name') t')
-
-renameLType (L loc t) = return . L loc =<< renameType t
-
-renameType t = case t of
- HsForAllTy expl tyvars lcontext ltype -> do
- tyvars' <- mapM renameLTyVarBndr tyvars
- lcontext' <- renameLContext lcontext
- ltype' <- renameLType ltype
- return (HsForAllTy expl tyvars' lcontext' ltype')
-
- HsTyVar n -> return . HsTyVar =<< rename n
- HsBangTy b ltype -> return . HsBangTy b =<< renameLType ltype
-
- HsAppTy a b -> do
- a' <- renameLType a
- b' <- renameLType b
- return (HsAppTy a' b')
-
- HsFunTy a b -> do
- a' <- renameLType a
- b' <- renameLType b
- return (HsFunTy a' b')
-
- HsListTy t -> return . HsListTy =<< renameLType t
- HsPArrTy t -> return . HsPArrTy =<< renameLType t
-
- HsTupleTy b ts -> return . HsTupleTy b =<< mapM renameLType ts
-
- HsOpTy a (L loc op) b -> do
- op' <- rename op
- a' <- renameLType a
- b' <- renameLType b
- return (HsOpTy a' (L loc op') b')
-
- HsParTy t -> return . HsParTy =<< renameLType t
-
- HsNumTy n -> return (HsNumTy n)
-
- HsPredTy p -> return . HsPredTy =<< renamePred p
-
- HsKindSig t k -> do
- t' <- renameLType t
- return (HsKindSig t' k)
-
- HsDocTy t doc -> do
- t' <- renameLType t
- doc' <- renameLDoc doc
- return (HsDocTy t' doc')
-
- _ -> error "renameType"
-
-renameLTyVarBndr (L loc tv) = do
- name' <- rename (hsTyVarName tv)
- return $ L loc (replaceTyVarName tv name')
-
-renameLContext (L loc context) = do
- context' <- mapM renameLPred context
- return (L loc context')
-
-renameInstHead :: InstHead Name -> RnM (InstHead DocName)
-renameInstHead (preds, className, types) = do
- preds' <- mapM renamePred preds
- className' <- rename className
- types' <- mapM renameType types
- return (preds', className', types')
-
-renameLDecl (L loc d) = return . L loc =<< renameDecl d
-
-renameDecl d = case d of
- TyClD d -> do
- d' <- renameTyClD d
- return (TyClD d')
- SigD s -> do
- s' <- renameSig s
- return (SigD s')
- ForD d -> do
- d' <- renameForD d
- return (ForD d')
- _ -> error "renameDecl"
-
-renameTyClD d = case d of
- ForeignType _ _ _ -> error "renameTyClD" -- I'm guessing these can't be exported
- -- ForeignType name a b -> do
- -- name' <- renameL name
- -- return (ForeignType name' a b)
-
- TyData x lcontext lname ltyvars _ k cons _ -> do
- lcontext' <- renameLContext lcontext
- ltyvars' <- mapM renameLTyVarBndr ltyvars
- cons' <- mapM renameLCon cons
- -- I don't think we need the derivings, so we return Nothing
- -- We skip the type patterns too. TODO: find out what they are :-)
- return (TyData x lcontext' (keepL lname) ltyvars' Nothing k cons' Nothing)
-
- TySynonym lname ltyvars typat ltype -> do
- ltyvars' <- mapM renameLTyVarBndr ltyvars
- ltype' <- renameLType ltype
- -- We skip type patterns here as well.
- return (TySynonym (keepL lname) ltyvars' Nothing ltype')
-
- ClassDecl lcontext lname ltyvars lfundeps lsigs _ _ _ -> do
- lcontext' <- renameLContext lcontext
- ltyvars' <- mapM renameLTyVarBndr ltyvars
- lfundeps' <- mapM renameLFunDep lfundeps
- lsigs' <- mapM renameLSig lsigs
- -- we don't need the default methods or the already collected doc entities
- -- we skip the ATs for now.
- return (ClassDecl lcontext' (keepL lname) ltyvars' lfundeps' lsigs' emptyBag [] [])
-
- where
- renameLCon (L loc con) = return . L loc =<< renameCon con
- renameCon (ConDecl lname expl ltyvars lcontext details restype mbldoc) = do
- ltyvars' <- mapM renameLTyVarBndr ltyvars
- lcontext' <- renameLContext lcontext
- details' <- renameDetails details
- restype' <- renameResType restype
- mbldoc' <- mapM renameLDoc mbldoc
- return (ConDecl (keepL lname) expl ltyvars' lcontext' details' restype' mbldoc')
-
- renameDetails (RecCon fields) = return . RecCon =<< mapM renameField fields
- renameDetails (PrefixCon ps) = return . PrefixCon =<< mapM renameLType ps
- renameDetails (InfixCon a b) = do
- a' <- renameLType a
- b' <- renameLType b
- return (InfixCon a' b')
-
- renameField (ConDeclField name t doc) = do
- t' <- renameLType t
- doc' <- mapM renameLDoc doc
- return (ConDeclField (keepL name) t' doc')
-
- renameResType (ResTyH98) = return ResTyH98
- renameResType (ResTyGADT t) = return . ResTyGADT =<< renameLType t
-
- renameLFunDep (L loc (xs, ys)) = return (L loc (map keep xs, map keep ys))
-
- renameLSig (L loc sig) = return . L loc =<< renameSig sig
-
-renameSig sig = case sig of
- TypeSig (L loc name) ltype -> do
- ltype' <- renameLType ltype
- return (TypeSig (L loc (keep name)) ltype')
-{- SpecSig lname ltype x -> do
- lname' <- renameL lname
- ltype' <- renameLType ltype
- return (SpecSig lname' ltype' x)
- InlineSig lname x -> do
- lname' <- renameL lname
- return (InlineSig lname' x)
- SpecInstSig t -> return . SpecInstSig =<< renameLType t
- FixSig fsig -> return . FixSig =<< renameFixitySig fsig
- where
- renameFixitySig (FixitySig lname x) = do
- lname' <- renameL lname
- return (FixitySig lname' x)
--}
-
-renameForD (ForeignImport lname ltype x) = do
- ltype' <- renameLType ltype
- return (ForeignImport (keepL lname) ltype' x)
-renameForD (ForeignExport lname ltype x) = do
- ltype' <- renameLType ltype
- return (ForeignExport (keepL lname) ltype' x)
-
-renameExportItem :: ExportItem Name -> RnM (ExportItem DocName)
-renameExportItem item = case item of
- ExportModule mod -> return (ExportModule mod)
- ExportGroup lev id doc -> do
- doc' <- renameDoc doc
- return (ExportGroup lev id doc')
- ExportDecl x decl doc instances -> do
- decl' <- renameLDecl decl
- doc' <- mapM renameDoc doc
- instances' <- mapM renameInstHead instances
- return (ExportDecl x decl' doc' instances')
- ExportNoDecl x y subs -> do
- y' <- lookupRn id y
- subs' <- mapM (lookupRn id) subs
- return (ExportNoDecl x y' subs')
- ExportDoc doc -> do
- doc' <- renameDoc doc
- return (ExportDoc doc')