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authorGravatar Pierre-Marie Pédrot <pierre-marie.pedrot@inria.fr>2015-12-05 12:53:20 +0100
committerGravatar Pierre-Marie Pédrot <pierre-marie.pedrot@inria.fr>2015-12-05 13:38:14 +0100
commit895d34a264d9d90adfe4f0618c3bb0663dc01615 (patch)
treeda8406b2fd882318c8264487596f2aca0e5f9f2a /lib/util.ml
parent8596423ed6345495ca5ec0aedb8a9a431bee2e5d (diff)
Leveraging GADTs to provide a better Dyn API.
Diffstat (limited to 'lib/util.ml')
-rw-r--r--lib/util.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/util.ml b/lib/util.ml
index a20dba0fc..b67539918 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -124,6 +124,7 @@ let delayed_force f = f ()
type ('a, 'b) union = ('a, 'b) CSig.union = Inl of 'a | Inr of 'b
type 'a until = 'a CSig.until = Stop of 'a | Cont of 'a
+type ('a, 'b) eq = ('a, 'b) CSig.eq = Refl : ('a, 'a) eq
let map_union f g = function
| Inl a -> Inl (f a)