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-rw-r--r--src/elaborate.sml94
1 files changed, 47 insertions, 47 deletions
diff --git a/src/elaborate.sml b/src/elaborate.sml
index a11787a9..1923390a 100644
--- a/src/elaborate.sml
+++ b/src/elaborate.sml
@@ -86,11 +86,11 @@
and validateKind env k = validateCon env (L'.CRecord (k, []), ErrorMsg.dummySpan)
- exception KUnify' of kunify_error
+ exception KUnify' of E.env * kunify_error
fun unifyKinds' env (k1All as (k1, _)) (k2All as (k2, _)) =
let
- fun err f = raise KUnify' (f (k1All, k2All))
+ fun err f = raise KUnify' (env, f (k1All, k2All))
in
case (k1, k2) of
(L'.KType, L'.KType) => ()
@@ -179,16 +179,16 @@
| _ => err KIncompatible
end
- exception KUnify of L'.kind * L'.kind * kunify_error
+ exception KUnify of L'.kind * L'.kind * E.env * kunify_error
fun unifyKinds env k1 k2 =
unifyKinds' env k1 k2
- handle KUnify' err => raise KUnify (k1, k2, err)
+ handle KUnify' (env', err) => raise KUnify (k1, k2, env', err)
fun checkKind env c k1 k2 =
unifyKinds env k1 k2
- handle KUnify (k1, k2, err) =>
- conError env (WrongKind (c, k1, k2, err))
+ handle KUnify (k1, k2, env', err) =>
+ conError env (WrongKind (c, k1, k2, env', err))
val dummy = ErrorMsg.dummySpan
@@ -563,7 +563,7 @@
con = fn L'.CUnif (_, _, _, _, r') => r = r'
| _ => false}
- exception CUnify' of cunify_error
+ exception CUnify' of E.env * cunify_error
type record_summary = {
fields : (L'.con * L'.con) list,
@@ -589,7 +589,7 @@
fun p_summary env s = p_con env (summaryToCon s)
- exception CUnify of L'.con * L'.con * cunify_error
+ exception CUnify of L'.con * L'.con * E.env * cunify_error
fun kindof env (c, loc) =
case c of
@@ -618,7 +618,7 @@
(case hnormKind (kindof env c) of
(L'.KArrow (_, k), _) => k
| (L'.KError, _) => kerror
- | k => raise CUnify' (CKindof (k, c, "arrow")))
+ | k => raise CUnify' (env, CKindof (k, c, "arrow")))
| L'.CAbs (x, k, c) => (L'.KArrow (k, kindof (E.pushCRel env x k) c), loc)
@@ -653,7 +653,7 @@
r := L'.KKnown k;
k
end)
- | k => raise CUnify' (CKindof (k, c, "tuple")))
+ | k => raise CUnify' (env, CKindof (k, c, "tuple")))
| L'.CError => kerror
| L'.CUnif (_, _, k, _, _) => k
@@ -662,7 +662,7 @@
| L'.CKApp (c, k) =>
(case hnormKind (kindof env c) of
(L'.KFun (_, k'), _) => subKindInKind (0, k) k'
- | k => raise CUnify' (CKindof (k, c, "kapp")))
+ | k => raise CUnify' (env, CKindof (k, c, "kapp")))
| L'.TKFun _ => ktype
exception GuessFailure
@@ -758,7 +758,7 @@
r := L'.KKnown (L'.KRecord k, #2 c);
k
end
- | k => raise CUnify' (CKindof (k, c, "record"))
+ | k => raise CUnify' (env, CKindof (k, c, "record"))
val k1 = rkindof c1
val k2 = rkindof c2
@@ -987,10 +987,10 @@
findPointwise fs1
else
SOME (nm1, c1, c2, (unifyCons env loc c1 c2; NONE)
- handle CUnify (_, _, err) => (reducedSummaries := NONE;
- SOME err))
+ handle CUnify (_, _, env', err) => (reducedSummaries := NONE;
+ SOME (env', err)))
in
- raise CUnify' (CRecordFailure (unsummarize s1, unsummarize s2, findPointwise (#fields s1)))
+ raise CUnify' (env, CRecordFailure (unsummarize s1, unsummarize s2, findPointwise (#fields s1)))
end
fun default () = if !mayDelay then
@@ -1009,7 +1009,7 @@
in
if occursCon r c then
(reducedSummaries := NONE;
- raise CUnify' (COccursCheckFailed (cr, c)))
+ raise CUnify' (env, COccursCheckFailed (cr, c)))
else
let
val sq = squish nl c
@@ -1027,7 +1027,7 @@
in
if occursCon r c then
(reducedSummaries := NONE;
- raise CUnify' (COccursCheckFailed (cr, c)))
+ raise CUnify' (env, COccursCheckFailed (cr, c)))
else
let
val sq = squish nl c
@@ -1119,7 +1119,7 @@
and unifyCons'' env loc (c1All as (c1, _)) (c2All as (c2, _)) =
let
- fun err f = raise CUnify' (f (c1All, c2All))
+ fun err f = raise CUnify' (env, f (c1All, c2All))
fun projSpecial1 (c1, n1, onFail) =
let
@@ -1344,18 +1344,18 @@
and unifyCons env loc c1 c2 =
unifyCons' env loc c1 c2
- handle CUnify' err => raise CUnify (c1, c2, err)
- | KUnify args => raise CUnify (c1, c2, CKind args)
+ handle CUnify' (env', err) => raise CUnify (c1, c2, env', err)
+ | KUnify (arg as {3 = env', ...}) => raise CUnify (c1, c2, env', CKind arg)
fun checkCon env e c1 c2 =
unifyCons env (#2 e) c1 c2
- handle CUnify (c1, c2, err) =>
- expError env (Unify (e, c1, c2, err))
+ handle CUnify (c1, c2, env', err) =>
+ expError env (Unify (e, c1, c2, env', err))
fun checkPatCon env p c1 c2 =
unifyCons env (#2 p) c1 c2
- handle CUnify (c1, c2, err) =>
- expError env (PatUnify (p, c1, c2, err))
+ handle CUnify (c1, c2, env', err) =>
+ expError env (PatUnify (p, c1, c2, env', err))
fun primType env p =
case p of
@@ -2579,7 +2579,7 @@ fun elabSgn_item ((sgi, loc), (env, denv, gs)) =
val (env', n) = E.pushENamed env x c'
in
(unifyKinds env ck ktype
- handle KUnify ue => strError env (NotType (loc, ck, ue)));
+ handle KUnify arg => strError env (NotType (loc, ck, arg)));
([(L'.SgiVal (x, n, c'), loc)], (env', denv, gs' @ gs))
end
@@ -3056,9 +3056,9 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
if x = x' then
let
val () = unifyKinds env k1 k2
- handle KUnify (k1, k2, err) =>
+ handle KUnify (k1, k2, env', err) =>
sgnError env (SgiWrongKind (loc, sgi1All, k1,
- sgi2All, k2, err))
+ sgi2All, k2, env', err))
val env = E.pushCNamedAs env x n1 k1 co1
in
SOME (if n1 = n2 then
@@ -3125,9 +3125,9 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
in
(unifyCons env loc c1 c2;
good ())
- handle CUnify (c1, c2, err) =>
+ handle CUnify (c1, c2, env', err) =>
(sgnError env (SgiWrongCon (loc, sgi1All, c1,
- sgi2All, c2, err));
+ sgi2All, c2, env', err));
good ())
end
else
@@ -3251,8 +3251,8 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
in
(unifyCons env loc t1 t2;
good ())
- handle CUnify (c1, c2, err) =>
- (sgnError env (SgiWrongCon (loc, sgi1All, c1, sgi2All, c2, err));
+ handle CUnify (c1, c2, env', err) =>
+ (sgnError env (SgiWrongCon (loc, sgi1All, c1, sgi2All, c2, env', err));
good ())
end
else
@@ -3272,8 +3272,8 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
("c2'", p_con env (sub2 c2))];*)
unifyCons env loc c1 (sub2 c2);
SOME env)
- handle CUnify (c1, c2, err) =>
- (sgnError env (SgiWrongCon (loc, sgi1All, c1, sgi2All, c2, err));
+ handle CUnify (c1, c2, env', err) =>
+ (sgnError env (SgiWrongCon (loc, sgi1All, c1, sgi2All, c2, env', err));
SOME env)
else
NONE
@@ -3340,9 +3340,9 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
if x = x' then
let
val () = unifyKinds env k1 k2
- handle KUnify (k1, k2, err) =>
+ handle KUnify (k1, k2, env', err) =>
sgnError env (SgiWrongKind (loc, sgi1All, k1,
- sgi2All, k2, err))
+ sgi2All, k2, env', err))
val env = E.pushCNamedAs env x n1 k1 co
in
@@ -3367,9 +3367,9 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
if x = x' then
let
val () = unifyKinds env k1 k2
- handle KUnify (k1, k2, err) =>
+ handle KUnify (k1, k2, env', err) =>
sgnError env (SgiWrongKind (loc, sgi1All, k1,
- sgi2All, k2, err))
+ sgi2All, k2, env', err))
val c2 = sub2 c2
@@ -3387,9 +3387,9 @@ and subSgn' counterparts env strLoc sgn1 (sgn2 as (_, loc2)) =
in
(unifyCons env loc c1 c2;
good ())
- handle CUnify (c1, c2, err) =>
+ handle CUnify (c1, c2, env', err) =>
(sgnError env (SgiWrongCon (loc, sgi1All, c1,
- sgi2All, c2, err));
+ sgi2All, c2, env', err));
good ())
end
else
@@ -4630,14 +4630,14 @@ fun elabFile basis topStr topSgn env file =
else
(app (fn (loc, env, k, s1, s2) =>
unifySummaries env (loc, k, normalizeRecordSummary env s1, normalizeRecordSummary env s2)
- handle CUnify' err => (ErrorMsg.errorAt loc "Error in final record unification";
- cunifyError env err;
- case !reducedSummaries of
- NONE => ()
- | SOME (s1, s2) =>
- (ErrorMsg.errorAt loc "Stuck unifying these records after canceling matching pieces:";
- eprefaces' [("Have", s1),
- ("Need", s2)])))
+ handle CUnify' (env', err) => (ErrorMsg.errorAt loc "Error in final record unification";
+ cunifyError env' err;
+ case !reducedSummaries of
+ NONE => ()
+ | SOME (s1, s2) =>
+ (ErrorMsg.errorAt loc "Stuck unifying these records after canceling matching pieces:";
+ eprefaces' [("Have", s1),
+ ("Need", s2)])))
(!delayedUnifs);
delayedUnifs := []);