Mercurial > urweb
diff src/elaborate.sml @ 704:70cbdcf5989b
UNIQUE constraints
author | Adam Chlipala <adamc@hcoop.net> |
---|---|
date | Tue, 07 Apr 2009 12:24:31 -0400 |
parents | fab5998b840e |
children | e6706a1df013 |
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--- a/src/elaborate.sml Sun Apr 05 16:17:32 2009 -0400 +++ b/src/elaborate.sml Tue Apr 07 12:24:31 2009 -0400 @@ -1126,11 +1126,11 @@ else (e, t, []) | t => (e, t, []) - in - case infer of - L.DontInfer => (e, t, []) - | _ => unravel (t, e) - end + in + case infer of + L.DontInfer => (e, t, []) + | _ => unravel (t, e) + end fun elabPat (pAll as (p, loc), (env, bound)) = let @@ -2319,7 +2319,7 @@ | L'.DFfiStr (x, n, sgn) => [(L'.SgiStr (x, n, sgn), loc)] | L'.DConstraint cs => [(L'.SgiConstraint cs, loc)] | L'.DExport _ => [] - | L'.DTable (tn, x, n, c) => [(L'.SgiVal (x, n, (L'.CApp (tableOf (), c), loc)), loc)] + | L'.DTable (tn, x, n, c, _) => [(L'.SgiVal (x, n, (L'.CApp (tableOf (), c), loc)), loc)] | L'.DSequence (tn, x, n) => [(L'.SgiVal (x, n, sequenceOf ()), loc)] | L'.DClass (x, n, k, c) => [(L'.SgiClass (x, n, k, c), loc)] | L'.DDatabase _ => [] @@ -3265,13 +3265,20 @@ ([(L'.DExport (E.newNamed (), sgn, str'), loc)], (env, denv, gs' @ gs)) end - | L.DTable (x, c) => + | L.DTable (x, c, e) => let val (c', k, gs') = elabCon (env, denv) c val (env, n) = E.pushENamed env x (L'.CApp (tableOf (), c'), loc) + val (e', et, gs'') = elabExp (env, denv) e + + val names = cunif (loc, (L'.KRecord (L'.KUnit, loc), loc)) + val cst = (L'.CModProj (!basis_r, [], "sql_constraints"), loc) + val cst = (L'.CApp (cst, names), loc) + val cst = (L'.CApp (cst, c'), loc) in checkKind env c' k (L'.KRecord (L'.KType, loc), loc); - ([(L'.DTable (!basis_r, x, n, c'), loc)], (env, denv, enD gs' @ gs)) + checkCon env e' et cst; + ([(L'.DTable (!basis_r, x, n, c', e'), loc)], (env, denv, gs'' @ enD gs' @ gs)) end | L.DSequence x => let