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--
-- Haddock - A Haskell Documentation Tool
--
-- (c) Simon Marlow 2003
--
module Haddock.GHC.Typecheck (
typecheckFiles
) where
import Haddock.Exception
import Haddock.Types
import Haddock.GHC.Utils
import Data.Maybe
import Control.Monad
import GHC
import Digraph
import BasicTypes
import SrcLoc
typecheckFiles :: Session -> [FilePath] -> IO [GhcModule]
typecheckFiles session files = do
checkedMods <- sortAndCheckModules session files
return (map mkGhcModule checkedMods)
-- | Get the sorted graph of all loaded modules and their dependencies
getSortedModuleGraph :: Session -> IO [(Module, FilePath)]
getSortedModuleGraph session = do
mbModGraph <- depanal session [] True
moduleGraph <- case mbModGraph of
Just mg -> return mg
Nothing -> throwE "Failed to load all modules"
let
getModFile = fromJust . ml_hs_file . ms_location
sortedGraph = topSortModuleGraph False moduleGraph Nothing
sortedModules = concatMap flattenSCC sortedGraph
modsAndFiles = [ (ms_mod modsum, getModFile modsum) |
modsum <- sortedModules ]
return modsAndFiles
type CheckedMod = (Module, FilePath, FullyCheckedMod)
type FullyCheckedMod = (ParsedSource,
RenamedSource,
TypecheckedSource,
ModuleInfo)
-- TODO: make it handle cleanup
sortAndCheckModules :: Session -> [FilePath] -> IO [CheckedMod]
sortAndCheckModules session files = do
-- load all argument files
targets <- mapM (\f -> guessTarget f Nothing) files
setTargets session targets
-- compute the dependencies and load them as well
allMods <- getSortedModuleGraph session
targets' <- mapM (\(_, f) -> guessTarget f Nothing) allMods
setTargets session targets'
flag <- load session LoadAllTargets
when (failed flag) $
throwE "Failed to load all needed modules"
-- typecheck the argument modules
let argMods = filter ((`elem` files) . snd) allMods
checkedMods <- forM argMods $ \(mod, file) -> do
mbMod <- checkModule session (moduleName mod) False
case mbMod of
Just (CheckedModule a (Just b) (Just c) (Just d) _)
-> return (mod, file, (a,b,c,d))
_ -> throwE ("Failed to check module: " ++ moduleString mod)
return checkedMods
-- | Dig out what we want from the typechecker output
mkGhcModule :: CheckedMod -> GhcModule
mkGhcModule (mod, file, checkedMod) = GhcModule {
ghcModule = mod,
ghcFilename = file,
ghcMbDocOpts = mbOpts,
ghcHaddockModInfo = info,
ghcMbDoc = mbDoc,
ghcGroup = group,
ghcMbExports = mbExports,
ghcExportedNames = modInfoExports modInfo,
ghcNamesInScope = fromJust $ modInfoTopLevelScope modInfo,
ghcInstances = modInfoInstances modInfo
}
where
HsModule _ _ _ _ _ mbOpts _ _ = unLoc parsed
(group, _, mbExports, mbDoc, info) = renamed
(parsed, renamed, _, modInfo) = checkedMod
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