diff options
Diffstat (limited to 'src/iflow.sml')
| -rw-r--r-- | src/iflow.sml | 50 |
1 files changed, 30 insertions, 20 deletions
diff --git a/src/iflow.sml b/src/iflow.sml index 797f13d0..73ff07ea 100644 --- a/src/iflow.sml +++ b/src/iflow.sml @@ -787,12 +787,12 @@ fun assert (db, a) = val r'' = ref (Node {Rep = ref NONE, Cons = ref SM.empty, Variety = Nothing, - Known = ref false}) + Known = ref (!(#Known (unNode r)))}) val r' = ref (Node {Rep = ref NONE, Cons = ref SM.empty, Variety = Dt1 (f, r''), - Known = ref false}) + Known = #Known (unNode r)}) in #Rep (unNode r) := SOME r' end @@ -2109,8 +2109,12 @@ fun evalExp env (e as (_, loc), st) = val st = St.addPath (st, ((loc, e, orig), Case)) - val (st, paths) = - foldl (fn ((pt, pe), (st, paths)) => + (*val () = Print.prefaces "Case" [("loc", Print.PD.string (ErrorMsg.spanToString loc)), + ("e", Print.p_list (MonoPrint.p_exp MonoEnv.empty o #2) pes), + ("orig", p_prop orig)]*) + + val (st, ambients, paths) = + foldl (fn ((pt, pe), (st, ambients, paths)) => let val (env, pp) = evalPat env e pt val (pe, st') = evalExp env (pe, St.setAmbient (st, And (orig, pp))) @@ -2118,15 +2122,16 @@ fun evalExp env (e as (_, loc), st) = val this = And (removeRedundant orig (St.ambient st'), Reln (Eq, [Var r, pe])) in - (St.setPaths (St.setAmbient (st', Or (St.ambient st, this)), origPaths), + (St.setPaths (st', origPaths), + Or (ambients, this), St.paths st' @ paths) - end) (St.setAmbient (st, False), []) pes + end) (st, False, []) pes val st = case #1 res of TRecord [] => St.setPaths (st, origPaths) | _ => St.setPaths (st, paths) in - (Var r, St.setAmbient (st, And (orig, St.ambient st))) + (Var r, St.setAmbient (st, And (orig, ambients))) end | EStrcat (e1, e2) => let @@ -2183,6 +2188,7 @@ fun evalExp env (e as (_, loc), st) = val (st', acc) = St.nextVar st' val (b, st') = evalExp (Var acc :: Var r :: env) (b, st') + val amb = removeRedundant (St.ambient st) (St.ambient st') val (st', qp, used, _) = queryProp env @@ -2194,8 +2200,6 @@ fun evalExp env (e as (_, loc), st) = end) (AllCols (Var r)) q - val p' = And (qp, St.ambient st') - val (st, res) = if varInP acc (St.ambient st') then let val (st, r) = St.nextVar st @@ -2204,17 +2208,19 @@ fun evalExp env (e as (_, loc), st) = end else let - val (st, out) = St.nextVar st' + val (st', out) = St.nextVar st' - val p = Or (Reln (Eq, [Var out, i]), - And (Reln (Eq, [Var out, b]), - p')) + val p = And (St.ambient st, + Or (Reln (Eq, [Var out, i]), + And (Reln (Eq, [Var out, b]), + And (qp, amb)))) in - (St.setAmbient (st, p), Var out) + (St.setAmbient (st', p), Var out) end val sent = map (fn ((loc, e, p), fl) => ((loc, e, And (qp, p)), fl)) (St.sent st') + val p' = And (qp, St.ambient st') val paths = map (fn (p'', e) => ((loc, e, And (p', p'')), Where)) used in (res, St.addPaths (St.setSent (st, sent), paths)) @@ -2508,13 +2514,16 @@ fun check file = val avail = foldl (fn (AReln (Sql tab, _), avail) => SS.add (avail, tab) | (_, avail) => avail) SS.empty hyps - in - List.filter - (fn (g1, _) => - decompG g1 - (List.all (fn AReln (Sql tab, _) => + + val ls = List.filter + (fn (g1, _) => + decompG g1 + (List.all (fn AReln (Sql tab, _) => SS.member (avail, tab) - | _ => true))) client + | _ => true))) client + in + (*print ("Max: " ^ Int.toString (length ls) ^ "\n");*) + ls end fun tryCombos (maxLv, pols, g, outs) = @@ -2551,6 +2560,7 @@ fun check file = | Control Case => " (case discriminee)" | Data => " (returned data value)"), Print.p_list p_atom hyps); + Print.preface ("DB", Cc.p_database cc); false) end handle Cc.Contradiction => true) then () |