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authorGravatar Adam Chlipala <adam@chlipala.net>2011-12-18 12:00:36 -0500
committerGravatar Adam Chlipala <adam@chlipala.net>2011-12-18 12:00:36 -0500
commitf7b9d1cc2d003582e03ad151bfe54f3d5fa51eb7 (patch)
treedfa02c4366af7cf29734a03418b586ce1f512cd9 /src
parent4eb93836d04d18f43d8c4360f290a7977d96c468 (diff)
Order constructors properly in wildification, to avoid spuriously displeasing the new scoping check
Diffstat (limited to 'src')
-rw-r--r--src/elaborate.sml18
1 files changed, 14 insertions, 4 deletions
diff --git a/src/elaborate.sml b/src/elaborate.sml
index 34cb12b8..b15ef1c4 100644
--- a/src/elaborate.sml
+++ b/src/elaborate.sml
@@ -1900,17 +1900,21 @@ fun findHead e e' =
findHead e
end
-datatype needed = Needed of {Cons : L'.kind SM.map,
+datatype needed = Needed of {Cons : (L'.kind * int) SM.map,
+ NextCon : int,
Constraints : (E.env * (L'.con * L'.con) * ErrorMsg.span) list,
Vals : SS.set,
Mods : (E.env * needed) SM.map}
-fun ncons (Needed r) = #Cons r
+fun ncons (Needed r) = map (fn (k, (v, _)) => (k, v))
+ (ListMergeSort.sort (fn ((_, (_, n1)), (_, (_, n2))) => n1 > n2)
+ (SM.listItemsi (#Cons r)))
fun nconstraints (Needed r) = #Constraints r
fun nvals (Needed r) = #Vals r
fun nmods (Needed r) = #Mods r
val nempty = Needed {Cons = SM.empty,
+ NextCon = 0,
Constraints = nil,
Vals = SS.empty,
Mods = SM.empty}
@@ -1919,7 +1923,8 @@ fun naddCon (r : needed, k, v) =
let
val Needed r = r
in
- Needed {Cons = SM.insert (#Cons r, k, v),
+ Needed {Cons = SM.insert (#Cons r, k, (v, #NextCon r)),
+ NextCon = #NextCon r + 1,
Constraints = #Constraints r,
Vals = #Vals r,
Mods = #Mods r}
@@ -1930,6 +1935,7 @@ fun naddConstraint (r : needed, v) =
val Needed r = r
in
Needed {Cons = #Cons r,
+ NextCon = #NextCon r,
Constraints = v :: #Constraints r,
Vals = #Vals r,
Mods = #Mods r}
@@ -1940,6 +1946,7 @@ fun naddVal (r : needed, k) =
val Needed r = r
in
Needed {Cons = #Cons r,
+ NextCon = #NextCon r,
Constraints = #Constraints r,
Vals = SS.add (#Vals r, k),
Mods = #Mods r}
@@ -1950,6 +1957,7 @@ fun naddMod (r : needed, k, v) =
val Needed r = r
in
Needed {Cons = #Cons r,
+ NextCon = #NextCon r,
Constraints = #Constraints r,
Vals = #Vals r,
Mods = SM.insert (#Mods r, k, v)}
@@ -1960,6 +1968,7 @@ fun ndelCon (r : needed, k) =
val Needed r = r
in
Needed {Cons = #1 (SM.remove (#Cons r, k)) handle NotFound => #Cons r,
+ NextCon = #NextCon r,
Constraints = #Constraints r,
Vals = #Vals r,
Mods = #Mods r}
@@ -1970,6 +1979,7 @@ fun ndelVal (r : needed, k) =
val Needed r = r
in
Needed {Cons = #Cons r,
+ NextCon = #NextCon r,
Constraints = #Constraints r,
Vals = SS.delete (#Vals r, k) handle NotFound => #Vals r,
Mods = #Mods r}
@@ -3649,7 +3659,7 @@ and wildifyStr env (str, sgn) =
end
val ds' =
- case SM.listItemsi (ncons nd) of
+ case ncons nd of
[] => ds'
| xs =>
map (fn (x, k) =>