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-rw-r--r--src/explify.sml2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/explify.sml b/src/explify.sml
index f5d19a17..530f4b5f 100644
--- a/src/explify.sml
+++ b/src/explify.sml
@@ -112,6 +112,8 @@ fun explifyExp (e, loc) =
{disc = explifyCon disc, result = explifyCon result}), loc)
| L.EError => raise Fail ("explifyExp: EError at " ^ EM.spanToString loc)
+ | L.EUnif (ref (SOME e)) => explifyExp e
+ | L.EUnif _ => raise Fail ("explifyExp: Undetermined EUnif at " ^ EM.spanToString loc)
fun explifySgi (sgi, loc) =
case sgi of