From 6cbb8086c8bcaca638b993a75017b7738cd923c9 Mon Sep 17 00:00:00 2001
From: aarne <aarne@cs.chalmers.se>
Date: Sat, 15 Mar 2008 21:02:59 +0000
Subject: putting pattern macros in place (not properly tested yet)

---
 src/GF/Devel/Compute.hs | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

(limited to 'src/GF/Devel/Compute.hs')

diff --git a/src/GF/Devel/Compute.hs b/src/GF/Devel/Compute.hs
index c0a99f4fd..a9081c28a 100644
--- a/src/GF/Devel/Compute.hs
+++ b/src/GF/Devel/Compute.hs
@@ -306,7 +306,8 @@ computeTermOpt rec gr = comput True where
        case allParamValues gr ptyp of
          Ok vs -> do
 
-           cs'  <- mapM (compBranchOpt g) cs
+           ps0  <- mapM (compPatternMacro . fst) cs
+           cs'  <- mapM (compBranchOpt g) (zip ps0 (map snd cs))
            sts  <- mapM (matchPattern cs') vs 
            ts   <- mapM (\ (c,g') -> comp (g' ++ g) c) sts
            ps   <- mapM term2patt vs
@@ -382,6 +383,33 @@ computeTermOpt rec gr = comput True where
        R rs     -> all (isCan . snd . snd) rs
        _        -> False
 
+     compPatternMacro p = case p of
+       PM m c -> case look m c of
+         Ok (EPatt p') -> compPatternMacro p'
+         _ -> prtBad "pattern expected as value of" p ---- should be in CheckGr
+       PAs x p -> do
+         p' <- compPatternMacro p
+         return $ PAs x p'
+       PAlt p q -> do
+         p' <- compPatternMacro p
+         q' <- compPatternMacro q
+         return $ PAlt p' q'
+       PSeq p q -> do
+         p' <- compPatternMacro p
+         q' <- compPatternMacro q
+         return $ PSeq p' q'
+       PRep p -> do
+         p' <- compPatternMacro p
+         return $ PRep p'
+       PNeg p -> do
+         p' <- compPatternMacro p
+         return $ PNeg p'
+       PR rs -> do
+         rs' <- mapPairsM compPatternMacro rs
+         return $ PR rs'
+
+       _ -> return p
+
      compBranch g (p,v) = do
        let g' = contP p ++ g
        v' <- comp g' v
-- 
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