1 files changed, 77 insertions, 0 deletions
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl b/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl
new file mode 100644
index 0000000000..d9b1d59f0c
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl
@@ -0,0 +1,77 @@
+-module(rec_api).
+
+-export([t1/0, t2/0, adt_t1/0, adt_t1/1, adt_r1/0,
+         t/1, t_adt/0, r/0, r_adt/0]).
+
+-export_type([{a,0},{r1,0}]).
+
+-export_type([f/0, op_t/0, r/0, tup/0]).
+
+-opaque a() :: a | b.
+
+-record(r1,
+        {f1 :: a()}).
+
+-opaque r1() :: #r1{}.
+
+t1() ->
+    A = #r1{f1 = a},
+    {r1, a} = A.
+
+t2() ->
+    A = {r1, 10}, % violates the type of #r1{}
+    {r1, 10} = A. % violates the type of #r1{}
+
+adt_t1() ->
+    R = rec_adt:r1(),
+    {r1, a} = R. % breaks the opaqueness
+
+-spec adt_t1(rec_adt:r1()) -> rec_adt:r1(). % invalid type spec
+
+adt_t1(R) ->
+    {r1, a} = R.
+
+-spec adt_r1() -> rec_adt:r1(). % invalid type spec
+
+adt_r1() ->
+    #r1{f1 = a}.
+
+-opaque f() :: fun((_) -> _).
+
+-opaque op_t() :: integer().
+
+-spec t(f()) -> _.
+
+t(A) ->
+    T = term(),
+    %% 3(T), % cannot test this: dialyzer_dep deliberately crashes
+    A(T).
+
+-spec term() -> op_t().
+
+term() ->
+    3.
+
+t_adt() ->
+    A = rec_adt:f(),
+    T = term(),
+    A(T).
+
+-record(r, {f = fun(_) -> 3 end :: f(), o = 1 :: op_t()}).
+
+-opaque r() :: #r{}.
+
+-opaque tup() :: {'r', f(), op_t()}.
+
+-spec r() -> _.
+
+r() ->
+    {r, f(), 2}. % OK, f() is a local opaque type
+
+-spec f() -> f().
+
+f() ->
+    fun(_) -> 3 end.
+
+r_adt() ->
+    {r, rec_adt:f(), 2}. % breaks the opaqueness