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|
-----------------------------------------------------------------------------
-- |
-- Module : Haddock.ModuleTree
-- Copyright : (c) Simon Marlow 2003-2006,
-- David Waern 2006
-- License : BSD-like
--
-- Maintainer : haddock@projects.haskell.org
-- Stability : experimental
-- Portability : portable
-----------------------------------------------------------------------------
module Haddock.ModuleTree ( ModuleTree(..), mkModuleTree ) where
import Haddock.Types ( MDoc )
import GHC ( Name )
import GHC.Types.Module ( Module, moduleNameString, moduleName, moduleUnit, unitString )
import GHC.Driver.Session ( DynFlags )
import GHC.Driver.Packages ( lookupUnit, unitPackageIdString )
import qualified Control.Applicative as A
data ModuleTree = Node String (Maybe Module) (Maybe String) (Maybe String) (Maybe (MDoc Name)) [ModuleTree]
mkModuleTree :: DynFlags -> Bool -> [(Module, Maybe (MDoc Name))] -> [ModuleTree]
mkModuleTree dflags showPkgs mods =
foldr fn [] [ (mdl, splitModule mdl, modPkg mdl, modSrcPkg mdl, short) | (mdl, short) <- mods ]
where
modPkg mod_ | showPkgs = Just (unitString (moduleUnit mod_))
| otherwise = Nothing
modSrcPkg mod_ | showPkgs = fmap unitPackageIdString
(lookupUnit dflags (moduleUnit mod_))
| otherwise = Nothing
fn (m,mod_,pkg,srcPkg,short) = addToTrees mod_ m pkg srcPkg short
addToTrees :: [String] -> Module -> Maybe String -> Maybe String -> Maybe (MDoc Name) -> [ModuleTree] -> [ModuleTree]
addToTrees [] _ _ _ _ ts = ts
addToTrees ss m pkg srcPkg short [] = mkSubTree ss m pkg srcPkg short
addToTrees (s1:ss) m pkg srcPkg short (t@(Node s2 leaf node_pkg node_srcPkg node_short subs) : ts)
| s1 > s2 = t : addToTrees (s1:ss) m pkg srcPkg short ts
| s1 == s2 = Node s2 (leaf A.<|> (if null ss then Just m else Nothing)) this_pkg this_srcPkg this_short (addToTrees ss m pkg srcPkg short subs) : ts
| otherwise = mkSubTree (s1:ss) m pkg srcPkg short ++ t : ts
where
this_pkg = if null ss then pkg else node_pkg
this_srcPkg = if null ss then srcPkg else node_srcPkg
this_short = if null ss then short else node_short
mkSubTree :: [String] -> Module -> Maybe String -> Maybe String -> Maybe (MDoc Name) -> [ModuleTree]
mkSubTree [] _ _ _ _ = []
mkSubTree [s] m pkg srcPkg short = [Node s (Just m) pkg srcPkg short []]
mkSubTree (s:s':ss) m pkg srcPkg short = [Node s Nothing Nothing Nothing Nothing (mkSubTree (s':ss) m pkg srcPkg short)]
splitModule :: Module -> [String]
splitModule mdl = split (moduleNameString (moduleName mdl))
where split mod0 = case break (== '.') mod0 of
(s1, '.':s2) -> s1 : split s2
(s1, _) -> [s1]
|
