{- |

Module : $Header$

Description : create a development graph from Haskell modules

Copyright : (c) Christian Maeder, Uni Bremen 2006

License : GPLv2 or higher

Maintainer : Christian.Maeder@dfki.de

Stability : provisional

Portability : portable

process Haskell files

-}

module Haskell.Haskell2DG (anaHaskellFile) where

import Text.ParserCombinators.Parsec

import qualified Data.Map as Map

import Common.Result

import Common.Id

import Common.GlobalAnnotations

import Common.LibName

import Common.Utils

import Haskell.HatAna

import Haskell.HatParser

import Haskell.Logic_Haskell

import Logic.Logic

import Logic.Prover

import Logic.Grothendieck

import Static.GTheory

import Static.DevGraph

import Static.ComputeTheory

import Driver.Options

anaHaskellFile :: HetcatsOpts -> FilePath -> IO (Maybe (LibName, LibEnv))

anaHaskellFile opts file = do

str <- readFile file

putIfVerbose opts 2 $ "Reading file " ++ file

case runParser hatParser () file str of

Left err -> do

putIfVerbose opts 0 $ show err

return Nothing

Right b -> case hatAna (b, emptySign, emptyGlobalAnnos) of

Result es Nothing -> do

putIfVerbose opts 0 $ unlines $ map show es

return Nothing

Result _ (Just (_, sig, sens)) -> do

let (bas, _, _) = fileparse downloadExtensions file

mName = mkSimpleId bas

name = makeName $ mName

node_contents = newNodeLab name DGBasic

$ G_theory Haskell sig startSigId (toThSens sens) startThId

dg = emptyDG

node = getNewNodeDG dg

dg1 = insNodeDG (node, node_contents) dg

moduleS = "Module"

nodeSig = NodeSig node $ signOf $ dgn_theory node_contents

ln = emptyLibName moduleS

esig = EmptyNode $ Logic Haskell

gEnv = Map.singleton mName

$ SpecEntry $ ExtGenSig (GenSig esig [] esig) nodeSig

dg2 = dg1 { globalEnv = gEnv }

libEnv = Map.singleton ln $ computeDGraphTheories Map.empty dg2

return $ Just (ln, libEnv)