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-rw-r--r--src/cjr_env.sig2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cjr_env.sig b/src/cjr_env.sig
index 7573c75e..0254f150 100644
--- a/src/cjr_env.sig
+++ b/src/cjr_env.sig
@@ -53,5 +53,7 @@ signature CJR_ENV = sig
val lookupStruct : env -> int -> (string * Cjr.typ) list
val declBinds : env -> Cjr.decl -> env
+
+ val classifyDatatype : (string * int * Cjr.typ option) list -> Cjr.datatype_kind
end