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-rw-r--r--lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl
new file mode 100644
index 0000000000..3456f0e9c6
--- /dev/null
+++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl
@@ -0,0 +1,9 @@
+-module(opaque_adt).
+-export([atom_or_list/1]).
+
+-opaque abc() :: 'a' | 'b' | 'c'.
+
+atom_or_list(1) -> a;
+atom_or_list(2) -> b;
+atom_or_list(3) -> c;
+atom_or_list(N) -> lists:duplicate(N, a).