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-rw-r--r--lib/compiler/test/match_SUITE.erl51
1 files changed, 39 insertions, 12 deletions
diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl
index 1e778dca24..67d668f650 100644
--- a/lib/compiler/test/match_SUITE.erl
+++ b/lib/compiler/test/match_SUITE.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
%%
%% %CopyrightEnd%
%%
@@ -22,7 +23,8 @@
init_per_group/2,end_per_group/2,
pmatch/1,mixed/1,aliases/1,match_in_call/1,
untuplify/1,shortcut_boolean/1,letify_guard/1,
- selectify/1,underscore/1,match_map/1,coverage/1]).
+ selectify/1,underscore/1,match_map/1,map_vars_used/1,
+ coverage/1]).
-include_lib("test_server/include/test_server.hrl").
@@ -33,10 +35,10 @@ all() ->
[{group,p}].
groups() ->
- [{p,test_lib:parallel(),
+ [{p,[parallel],
[pmatch,mixed,aliases,match_in_call,untuplify,
shortcut_boolean,letify_guard,selectify,
- underscore,match_map,coverage]}].
+ underscore,match_map,map_vars_used,coverage]}].
init_per_suite(Config) ->
@@ -140,6 +142,13 @@ aliases(Config) when is_list(Config) ->
?line {a,b} = list_alias2([a,b]),
?line {a,b} = list_alias3([a,b]),
+ %% Non-matching aliases.
+ none = mixed_aliases(<<42>>),
+ none = mixed_aliases([b]),
+ none = mixed_aliases([d]),
+ none = mixed_aliases({a,42}),
+ none = mixed_aliases(42),
+
ok.
str_alias(V) ->
@@ -243,6 +252,12 @@ list_alias2([X,Y]=[a,b]) ->
list_alias3([X,b]=[a,Y]) ->
{X,Y}.
+mixed_aliases(<<X:8>> = x) -> {a,X};
+mixed_aliases([b] = <<X:8>>) -> {b,X};
+mixed_aliases(<<X:8>> = {a,X}) -> {c,X};
+mixed_aliases([X] = <<X:8>>) -> {d,X};
+mixed_aliases(_) -> none.
+
%% OTP-7018.
match_in_call(Config) when is_list(Config) ->
@@ -419,6 +434,18 @@ do_match_map_2(Map) ->
Tuple
end.
+map_vars_used(Config) when is_list(Config) ->
+ {some,value} = do_map_vars_used(a, b, #{{a,b}=>42,v=>{some,value}}),
+ ok.
+
+do_map_vars_used(X, Y, Map) ->
+ case {X,Y} of
+ T ->
+ %% core_lib:is_var_used/2 would not consider T used.
+ #{T:=42,v:=Val} = Map,
+ Val
+ end.
+
coverage(Config) when is_list(Config) ->
%% Cover beam_dead.
ok = coverage_1(x, a),