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authorGravatar Adam Chlipala <adam@chlipala.net>2011-11-05 13:12:07 -0400
committerGravatar Adam Chlipala <adam@chlipala.net>2011-11-05 13:12:07 -0400
commit22d36c8605e1d006a379350e28a5f939f7082546 (patch)
tree49701847d92455f45e46ae73c9e15d3d3fff9e64 /src/elaborate.sml
parent99adfa83d473370a0bc0d085279a5406404a7f5a (diff)
Tweaks to choices of source positions to use in error messages, including for subSgn
Diffstat (limited to 'src/elaborate.sml')
-rw-r--r--src/elaborate.sml66
1 files changed, 39 insertions, 27 deletions
diff --git a/src/elaborate.sml b/src/elaborate.sml
index 5ba4df42..fd6ce8ce 100644
--- a/src/elaborate.sml
+++ b/src/elaborate.sml
@@ -1255,6 +1255,11 @@
Disjoint of D.goal
| TypeClass of E.env * L'.con * L'.exp option ref * ErrorMsg.span
+ fun relocConstraint loc c =
+ case c of
+ Disjoint (_, a, b, c, d) => Disjoint (loc, a, b, c, d)
+ | TypeClass (a, b, c, _) => TypeClass (a, b, c, loc)
+
val enD = map Disjoint
fun isClassOrFolder env cl =
@@ -1351,10 +1356,12 @@
else
(e, t, [])
| t => (e, t, [])
+
+ val (e, t, gs) = case infer of
+ L.DontInfer => unravelKind (t, e)
+ | _ => unravel (t, e)
in
- case infer of
- L.DontInfer => unravelKind (t, e)
- | _ => unravel (t, e)
+ ((#1 e, loc), (#1 t, loc), map (relocConstraint loc) gs)
end
fun elabPat (pAll as (p, loc), (env, bound)) =
@@ -1865,6 +1872,11 @@ fun ndelVal (r : needed, k) =
Mods = #Mods r}
end
+fun chaseUnifs c =
+ case #1 c of
+ L'.CUnif (_, _, _, _, ref (SOME c)) => chaseUnifs c
+ | _ => c
+
fun elabExp (env, denv) (eAll as (e, loc)) =
let
(*val () = eprefaces "elabExp" [("eAll", SourcePrint.p_exp eAll)]*)
@@ -1933,7 +1945,7 @@ fun elabExp (env, denv) (eAll as (e, loc)) =
val ef = (L'.EApp (e1', e2'), loc)
val (ef, et, gs3) =
case findHead e1 e1' of
- NONE => (ef, ran, [])
+ NONE => (ef, (#1 (chaseUnifs ran), loc), [])
| SOME infer => elabHead (env, denv) infer ef ran
in
(ef, et, gs1 @ gs2 @ gs3)
@@ -1983,7 +1995,7 @@ fun elabExp (env, denv) (eAll as (e, loc)) =
("eb", p_con (E.pushCRel env x k) eb),
("c", p_con env c'),
("eb'", p_con env eb')];*)
- (ef, eb', gs1 @ enD gs2 @ gs3)
+ (ef, (#1 eb', loc), gs1 @ enD gs2 @ gs3)
end
| _ =>
@@ -2040,7 +2052,7 @@ fun elabExp (env, denv) (eAll as (e, loc)) =
val () = checkCon env e' t (L'.TDisjoint (c1, c2, t'), loc)
val gs2 = D.prove env denv (c1, c2, loc)
in
- (e', t', enD gs2 @ gs1)
+ (e', (#1 (chaseUnifs t'), loc), enD gs2 @ gs1)
end
| L.ERecord xes =>
@@ -2915,14 +2927,14 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
in
case sgi of
L'.SgiConAbs (x, n2, k2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
let
fun found (x', n1, k1, co1) =
if x = x' then
let
val () = unifyKinds env k1 k2
handle KUnify (k1, k2, err) =>
- sgnError env (SgiWrongKind (strLoc, sgi1All, k1,
+ sgnError env (SgiWrongKind (loc, sgi1All, k1,
sgi2All, k2, err))
val env = E.pushCNamedAs env x n1 k1 co1
in
@@ -2969,7 +2981,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
end)
| L'.SgiCon (x, n2, k2, c2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
let
fun found (x', n1, k1, c1) =
if x = x' then
@@ -2991,7 +3003,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
(unifyCons env loc c1 c2;
good ())
handle CUnify (c1, c2, err) =>
- (sgnError env (SgiWrongCon (strLoc, sgi1All, c1,
+ (sgnError env (SgiWrongCon (loc, sgi1All, c1,
sgi2All, c2, err));
good ())
end
@@ -3006,13 +3018,13 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
| L'.SgiDatatype dts2 =>
let
- fun found' (sgi1All, (x1, n1, xs1, xncs1), (x2, n2, xs2, xncs2), env) =
+ fun found' (sgi1All as (_, loc), (x1, n1, xs1, xncs1), (x2, n2, xs2, xncs2), env) =
if x1 <> x2 then
NONE
else
let
fun mismatched ue =
- (sgnError env (SgiMismatchedDatatypes (strLoc, sgi1All, sgi2All, ue));
+ (sgnError env (SgiMismatchedDatatypes (loc, sgi1All, sgi2All, ue));
SOME env)
val k = (L'.KType, loc)
@@ -3095,7 +3107,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
end
| L'.SgiDatatypeImp (x, n2, m12, ms2, s2, xs, _) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
case sgi1 of
L'.SgiDatatypeImp (x', n1, m11, ms1, s1, _, _) =>
if x = x' then
@@ -3117,7 +3129,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
(unifyCons env loc t1 t2;
good ())
handle CUnify (c1, c2, err) =>
- (sgnError env (SgiWrongCon (strLoc, sgi1All, c1, sgi2All, c2, err));
+ (sgnError env (SgiWrongCon (loc, sgi1All, c1, sgi2All, c2, err));
good ())
end
else
@@ -3126,7 +3138,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
| _ => NONE)
| L'.SgiVal (x, n2, c2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
case sgi1 of
L'.SgiVal (x', n1, c1) =>
if x = x' then
@@ -3138,19 +3150,19 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
unifyCons env loc c1 (sub2 c2);
SOME env)
handle CUnify (c1, c2, err) =>
- (sgnError env (SgiWrongCon (strLoc, sgi1All, c1, sgi2All, c2, err));
+ (sgnError env (SgiWrongCon (loc, sgi1All, c1, sgi2All, c2, err));
SOME env)
else
NONE
| _ => NONE)
| L'.SgiStr (x, n2, sgn2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
case sgi1 of
L'.SgiStr (x', n1, sgn1) =>
if x = x' then
let
- val () = subSgn' counterparts env strLoc sgn1 sgn2
+ val () = subSgn' counterparts env loc sgn1 sgn2
val env = E.pushStrNamedAs env x n1 sgn1
val env = if n1 = n2 then
env
@@ -3166,13 +3178,13 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
| _ => NONE)
| L'.SgiSgn (x, n2, sgn2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
case sgi1 of
L'.SgiSgn (x', n1, sgn1) =>
if x = x' then
let
- val () = subSgn' counterparts env strLoc sgn1 sgn2
- val () = subSgn' counterparts env strLoc sgn2 sgn1
+ val () = subSgn' counterparts env loc sgn1 sgn2
+ val () = subSgn' counterparts env loc sgn2 sgn1
val env = E.pushSgnNamedAs env x n2 sgn2
val env = if n1 = n2 then
@@ -3188,7 +3200,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
| _ => NONE)
| L'.SgiConstraint (c2, d2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
case sgi1 of
L'.SgiConstraint (c1, d1) =>
if consEq env loc (c1, c2)
@@ -3199,14 +3211,14 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
| _ => NONE)
| L'.SgiClassAbs (x, n2, k2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
let
fun found (x', n1, k1, co) =
if x = x' then
let
val () = unifyKinds env k1 k2
handle KUnify (k1, k2, err) =>
- sgnError env (SgiWrongKind (strLoc, sgi1All, k1,
+ sgnError env (SgiWrongKind (loc, sgi1All, k1,
sgi2All, k2, err))
val env = E.pushCNamedAs env x n1 k1 co
@@ -3226,14 +3238,14 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
| _ => NONE
end)
| L'.SgiClass (x, n2, k2, c2) =>
- seek (fn (env, sgi1All as (sgi1, _)) =>
+ seek (fn (env, sgi1All as (sgi1, loc)) =>
let
fun found (x', n1, k1, c1) =
if x = x' then
let
val () = unifyKinds env k1 k2
handle KUnify (k1, k2, err) =>
- sgnError env (SgiWrongKind (strLoc, sgi1All, k1,
+ sgnError env (SgiWrongKind (loc, sgi1All, k1,
sgi2All, k2, err))
val c2 = sub2 c2
@@ -3253,7 +3265,7 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
(unifyCons env loc c1 c2;
good ())
handle CUnify (c1, c2, err) =>
- (sgnError env (SgiWrongCon (strLoc, sgi1All, c1,
+ (sgnError env (SgiWrongCon (loc, sgi1All, c1,
sgi2All, c2, err));
good ())
end
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