{- |

Module : $Header$

Description : Static analysis for COL

Copyright : (c) Christian Maeder, Uni Bremen 2004

License : similar to LGPL, see HetCATS/LICENSE.txt or LIZENZ.txt

Maintainer : till@informatik.uni-bremen.de

Stability : provisional

Portability : portable

static analysis of COL parts

-}

module COL.StatAna where

import COL.AS_COL

import COL.COLSign

import CASL.StaticAna

import Common.AS_Annotation

import qualified Data.Set as Set

import qualified Data.Map as Map

import Common.Id

import Common.Result

addConstructor :: Id -> COLSign -> Result COLSign

addConstructor i m = return

m { constructors = Set.insert i $ constructors m }

addObserver :: (Id, Maybe Int) -> COLSign -> Result COLSign

addObserver (i, v) m = return

m { observers = Map.insert i (maybe 0 id v) $ observers m }

ana_COL_SIG_ITEM :: Ana COL_SIG_ITEM () COL_SIG_ITEM () COLSign

ana_COL_SIG_ITEM _ mi =

case mi of

Constructor_items al ps -> do

mapM_ (updateExtInfo . addConstructor . item) al

return $ Constructor_items al ps

Observer_items al ps -> do

mapM_ (updateExtInfo . addObserver . item) al

return $ Observer_items al ps