diff options
author | 2009-04-28 11:05:28 -0400 | |
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committer | 2009-04-28 11:05:28 -0400 | |
commit | 008b594412606bbf78fff76daff219a102ce2daa (patch) | |
tree | 3fd436b0d0eff217ce878cae73dd070a73f12835 /src/monoize.sml | |
parent | 04dd6b3727c7786a4824897e78b0b2982ecd6f5b (diff) |
LEFT JOIN
Diffstat (limited to 'src/monoize.sml')
-rw-r--r-- | src/monoize.sml | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/monoize.sml b/src/monoize.sml index 98a32492..1a502e51 100644 --- a/src/monoize.sml +++ b/src/monoize.sml @@ -189,6 +189,8 @@ fun monoType env = (L'.TFun (mt env dtmap t, (L'.TFfi ("Basis", "string"), loc)), loc) | L.CApp ((L.CFfi ("Basis", "sql_injectable"), _), t) => (L'.TFun (mt env dtmap t, (L'.TFfi ("Basis", "string"), loc)), loc) + | L.CApp ((L.CApp ((L.CFfi ("Basis", "nullify"), _), _), _), _) => + (L'.TRecord [], loc) | L.CApp ((L.CApp ((L.CFfi ("Basis", "sql_unary"), _), _), _), _) => (L'.TFfi ("Basis", "string"), loc) | L.CApp ((L.CApp ((L.CApp ((L.CFfi ("Basis", "sql_binary"), _), _), _), _), _), _) => @@ -581,6 +583,15 @@ fun monoExp (env, st, fm) (all as (e, loc)) = ((L'.ERecord [("Lt", lt, (L'.TFun (t, (L'.TFun (t, (L'.TFfi ("Basis", "bool"), loc)), loc)), loc)), ("Le", le, (L'.TFun (t, (L'.TFun (t, (L'.TFfi ("Basis", "bool"), loc)), loc)), loc))], loc), fm) + + fun outerRec xts = + (L'.TRecord (map (fn ((L.CName x, _), (L.CRecord (_, xts), _)) => + (x, (L'.TRecord (map (fn (x', _) => (x, (L'.TRecord [], loc))) xts), loc)) + | (x, all as (_, loc)) => + (E.errorAt loc "Unsupported record field constructor"; + Print.eprefaces' [("Name", CorePrint.p_con env x), + ("Constructor", CorePrint.p_con env all)]; + ("", dummyTyp))) xts), loc) in case e of L.EPrim p => ((L'.EPrim p, loc), fm) @@ -1702,6 +1713,13 @@ fun monoExp (env, st, fm) (all as (e, loc)) = fm) end + | L.ECApp ((L.EFfi ("Basis", "nullify_option"), _), _) => + ((L'.ERecord [], loc), fm) + | L.ECApp ((L.EFfi ("Basis", "nullify_prim"), _), _) => + ((L'.EAbs ("_", (L'.TRecord [], loc), (L'.TRecord [], loc), + (L'.ERecord [], loc)), loc), + fm) + | L.ECApp ((L.EFfi ("Basis", "sql_subset"), _), _) => ((L'.ERecord [], loc), fm) | L.ECApp ((L.EFfi ("Basis", "sql_subset_all"), _), _) => @@ -1744,6 +1762,25 @@ fun monoExp (env, st, fm) (all as (e, loc)) = (L'.EPrim (Prim.String ")"), loc)]), loc)), loc)), loc), fm) end + | L.ECApp ((L.ECApp ((L.EFfi ("Basis", "sql_left_join"), _), _), _), (L.CRecord (_, right), _)) => + let + val s = (L'.TFfi ("Basis", "string"), loc) + in + ((L'.EAbs ("_", outerRec right, + (L'.TFun (s, (L'.TFun (s, (L'.TFun (s, s), loc)), loc)), loc), + (L'.EAbs ("tab1", s, (L'.TFun (s, (L'.TFun (s, s), loc)), loc), + (L'.EAbs ("tab2", s, (L'.TFun (s, s), loc), + (L'.EAbs ("on", s, s, + strcat [(L'.EPrim (Prim.String "("), loc), + (L'.ERel 2, loc), + (L'.EPrim (Prim.String " LEFT JOIN "), loc), + (L'.ERel 1, loc), + (L'.EPrim (Prim.String " ON "), loc), + (L'.ERel 0, loc), + (L'.EPrim (Prim.String ")"), loc)]), + loc)), loc)), loc)), loc), + fm) + end | L.ECApp ((L.ECApp ((L.EFfi ("Basis", "sql_order_by_Nil"), _), _), _), _) => ((L'.EPrim (Prim.String ""), loc), fm) |