aboutsummaryrefslogtreecommitdiffstats
path: root/lib/compiler/test/match_SUITE.erl
diff options
context:
space:
mode:
Diffstat (limited to 'lib/compiler/test/match_SUITE.erl')
-rw-r--r--lib/compiler/test/match_SUITE.erl38
1 files changed, 35 insertions, 3 deletions
diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl
index ae7d764535..7522ee985f 100644
--- a/lib/compiler/test/match_SUITE.erl
+++ b/lib/compiler/test/match_SUITE.erl
@@ -22,7 +22,8 @@
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,coverage/1]).
+ selectify/1,underscore/1,match_map/1,map_vars_used/1,
+ coverage/1]).
-include_lib("test_server/include/test_server.hrl").
@@ -33,9 +34,10 @@ all() ->
[{group,p}].
groups() ->
- [{p,test_lib:parallel(),
+ [{p,[parallel],
[pmatch,mixed,aliases,match_in_call,untuplify,
- shortcut_boolean,letify_guard,selectify,underscore,coverage]}].
+ shortcut_boolean,letify_guard,selectify,
+ underscore,match_map,map_vars_used,coverage]}].
init_per_suite(Config) ->
@@ -400,6 +402,36 @@ underscore(Config) when is_list(Config) ->
_ = is_list(Config),
ok.
+-record(s, {map,t}).
+
+match_map(Config) when is_list(Config) ->
+ Map = #{key=>{x,y},ignore=>anything},
+ #s{map=Map,t={x,y}} = do_match_map(#s{map=Map}),
+ {a,#{k:={a,b,c}}} = do_match_map_2(#{k=>{a,b,c}}),
+ ok.
+
+do_match_map(#s{map=#{key:=Val}}=S) ->
+ %% Would crash with a 'badarg' exception.
+ S#s{t=Val}.
+
+do_match_map_2(Map) ->
+ case {a,Map} of
+ {a,#{k:=_}}=Tuple ->
+ 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),