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|
----------------------------------------------------------------------
-- |
-- Module : Rebuild
-- Maintainer : AR
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/05/30 21:08:14 $
-- > CVS $Author: aarne $
-- > CVS $Revision: 1.14 $
--
-- Rebuild a source module from incomplete and its with-instance.
-----------------------------------------------------------------------------
module GF.Compile.Rebuild (rebuildModule) where
import GF.Grammar.Grammar
import GF.Compile.ModDeps
import GF.Grammar.PrGrammar
import GF.Grammar.Lookup
import GF.Compile.Extend
import GF.Grammar.Macros
import GF.Infra.Ident
import GF.Infra.Modules
import GF.Infra.Option
import GF.Data.Operations
import Data.List (nub)
import Data.Maybe (isNothing)
-- | rebuilding instance + interface, and "with" modules, prior to renaming.
-- AR 24/10/2003
rebuildModule :: [SourceModule] -> SourceModule -> Err SourceModule
rebuildModule ms mo@(i,mi@(ModInfo mt stat fs_ me mw ops_ med_ js_ ps_)) = do
let gr = MGrammar ms
---- deps <- moduleDeps ms
---- is <- openInterfaces deps i
let is = [] ---- the method above is buggy: try "i -src" for two grs. AR 8/3/2005
mi' <- case mw of
-- add the information given in interface into an instance module
Nothing -> do
testErr (null is || mstatus mi == MSIncomplete)
("module" +++ prt i +++
"has open interfaces and must therefore be declared incomplete")
case mt of
MTInstance i0 -> do
m1 <- lookupModule gr i0
testErr (isModRes m1) ("interface expected instead of" +++ prt i0)
js' <- extendMod False (i0,const True) i (jments m1) (jments mi)
--- to avoid double inclusions, in instance I of I0 = J0 ** ...
case extends mi of
[] -> return $ replaceJudgements mi js'
j0s -> do
m0s <- mapM (lookupModule gr) j0s
let notInM0 c _ = all (not . isInBinTree c . jments) m0s
let js2 = filterBinTree notInM0 js'
return $ (replaceJudgements mi js2)
{positions =
buildTree (tree2list (positions m1) ++
tree2list (positions mi))}
_ -> return mi
-- add the instance opens to an incomplete module "with" instances
Just (ext,incl,ops) -> do
let (infs,insts) = unzip ops
let stat' = ifNull MSComplete (const MSIncomplete)
[i | i <- is, notElem i infs]
testErr (stat' == MSComplete || stat == MSIncomplete)
("module" +++ prt i +++ "remains incomplete")
ModInfo mt0 _ fs me' _ ops0 _ js ps0 <- lookupModule gr ext
let ops1 = nub $
ops_ ++ -- N.B. js has been name-resolved already
[OQualif i j | (i,j) <- ops] ++
[o | o <- ops0, notElem (openedModule o) infs] ++
[OQualif i i | i <- insts] ++
[OSimple i | i <- insts]
--- check if me is incomplete
let fs1 = fs `addOptions` fs_ -- new flags have priority
let js0 = [ci | ci@(c,_) <- tree2list js, isInherited incl c]
let js1 = buildTree (tree2list js_ ++ js0)
let ps1 = buildTree (tree2list ps_ ++ tree2list ps0)
let med1= nub (ext : infs ++ insts ++ med_)
return $ ModInfo mt0 stat' fs1 me Nothing ops1 med1 js1 ps1
return (i,mi')
checkCompleteInstance :: SourceModInfo -> SourceModInfo -> Err ()
checkCompleteInstance abs cnc = ifNull (return ()) (Bad . unlines) $
checkComplete [f | (f, ResOper (Yes _) _) <- abs'] cnc'
where
abs' = tree2list $ jments abs
cnc' = jments cnc
checkComplete sought given = foldr ckOne [] sought
where
ckOne f = if isInBinTree f given
then id
else (("Error: no definition given to" +++ prt f):)
|
