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-rw-r--r--lib/dialyzer/test/map_SUITE_data/src/bug.erl51
1 files changed, 50 insertions, 1 deletions
diff --git a/lib/dialyzer/test/map_SUITE_data/src/bug.erl b/lib/dialyzer/test/map_SUITE_data/src/bug.erl
index 9e152bf461..fc32f5641a 100644
--- a/lib/dialyzer/test/map_SUITE_data/src/bug.erl
+++ b/lib/dialyzer/test/map_SUITE_data/src/bug.erl
@@ -1,6 +1,11 @@
-module(bug).
--export([t1/0, f1/1]).
+-export([t1/0, f1/1
+ ,t2/0, f2/1
+ ,t3/0, f3/1
+ ,t4/0, f4/1
+ ,t5/0, f5/1
+ ]).
t1() ->
V = f1(#{a=>b}),
@@ -12,3 +17,47 @@ t1() ->
f1(M) -> %% Should get map() succ typing
#{} = M.
+
+t2() ->
+ V = f2([#{a=>b}]),
+ case V of
+ [#{a := P}] -> P; %% Must not warn here
+ _ -> ok
+ end,
+ ok.
+
+f2(M) -> %% Should get [map(),...] succ typing
+ [#{}] = M.
+
+t3() ->
+ V = f3([#{a=>b},a]),
+ case V of
+ [#{a := P}, _Q] -> P; %% Must not warn here
+ _ -> ok
+ end,
+ ok.
+
+f3(M) -> %% Should get [map()|a,...] succ typing
+ [#{},a] = M.
+
+t4() ->
+ V = f4({#{a=>b},{}}),
+ case V of
+ {#{a := P},{}} -> P; %% Must not warn here
+ _ -> ok
+ end,
+ ok.
+
+f4(M) -> %% Should get {map(),{}} succ typing
+ {#{},{}} = M.
+
+t5() ->
+ V = f5(#{k=>q,a=>b}),
+ case V of
+ #{k := q, a := P} -> P; %% Must not warn here
+ _ -> ok
+ end,
+ ok.
+
+f5(M) -> %% Should get #{k:=q, ...} succ typing
+ #{k:=q} = M.