diff options
Diffstat (limited to 'lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl')
-rw-r--r-- | lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl b/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl new file mode 100644 index 0000000000..2fe4f204d1 --- /dev/null +++ b/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl @@ -0,0 +1,23 @@ +%% -*- erlang-indent-level: 2 -*- +%%------------------------------------------------------------------------- +-module(maps_put_map_assoc). + +-export([test/0]). + +test() -> + true = assoc_guard(#{}), + false = assoc_guard(not_a_map), + #{a := true} = assoc_update(#{}), + {'EXIT', {{badmap, not_a_map}, [{?MODULE, assoc_update, 1, _}|_]}} + = (catch assoc_update(not_a_map)), + ok = assoc_guard_clause(#{}), + {'EXIT', {function_clause, [{?MODULE, assoc_guard_clause, _, _}|_]}} + = (catch assoc_guard_clause(not_a_map)), + ok. + +assoc_guard(M) when is_map(M#{a => b}) -> true; +assoc_guard(_) -> false. + +assoc_update(M) -> M#{a => true}. + +assoc_guard_clause(M) when is_map(M#{a => 3}) -> ok. |