dialyzer: Fix a weird warning

2 files changed, 22 insertions, 0 deletions

diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/weird b/lib/dialyzer/test/opaque_SUITE_data/results/weird
index cffba85b9f..df69c9b6f2 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/weird
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/weird
@@ -1,3 +1,6 @@
 
 weird_warning1.erl:15: The attempt to match a term of type #b{q::queue:queue(_)} against the pattern {'a', Dict} breaks the opacity of queue:queue(_)
 weird_warning2.erl:13: The attempt to match a term of type <#a{d::dict:dict(_,_)},'my_key','my_value'> against the pattern <{'b', Queue}, Key, Value> breaks the opacity of dict:dict(_,_)
+weird_warning3.erl:14: The call weird_warning3:add_element(#a{d::queue:queue(_)},'my_key','my_value') does not have a term of type #a{d::dict:dict(_,_)} | #b{q::queue:queue(_)} (with opaque subterms) as 1st argument
+weird_warning3.erl:16: The attempt to match a term of type #a{d::queue:queue(_)} against the pattern {'a', Dict} breaks the opacity of queue:queue(_)
+weird_warning3.erl:18: Matching of pattern {'b', Queue} tagged with a record name violates the declared type of #a{d::queue:queue(_)}
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/weird/weird_warning3.erl b/lib/dialyzer/test/opaque_SUITE_data/src/weird/weird_warning3.erl
new file mode 100644
index 0000000000..b70ca645cb
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/weird/weird_warning3.erl
@@ -0,0 +1,19 @@
+-module(weird_warning3).
+-export([public_func/0]).
+
+-record(a, {
+          d = dict:new() :: dict:dict()
+         }).
+
+-record(b, {
+          q = queue:new() :: queue:queue()
+         }).
+
+public_func() ->
+    %% Notice that t_to_string() will create "#a{d::queue:queue(_)}".
+    add_element({a, queue:new()}, my_key, my_value).
+
+add_element(#a{d = Dict}, Key, Value) ->
+    dict:store(Key, Value, Dict);
+add_element(#b{q = Queue}, Key, Value) ->
+    queue:in({Key, Value}, Queue).