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Diffstat (limited to 'lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_use.erl')
| -rw-r--r-- | lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_use.erl | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_use.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_use.erl new file mode 100644 index 0000000000..e82dcd5f38 --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_use.erl @@ -0,0 +1,31 @@ +%%--------------------------------------------------------------------------- +%% Test that tries some combinations of using more than one opaque data type +%% in the same function(s). +%%---------------------------------------------------------------------------- +-module(mixed_opaque_use). + +-export([ok1/1, ok2/0, wrong1/0]). + +-define(REC, mixed_opaque_rec_adt). +-define(QUEUE, mixed_opaque_queue_adt). + +%% Currently returning unions of opaque types is considered OK +ok1(Type) -> + case Type of + queue -> ?QUEUE:new(); + rec -> ?REC:new() + end. + +%% Constructing a queue of records is OK +ok2() -> + Q0 = ?QUEUE:new(), + R0 = ?REC:new(), + Q1 = ?QUEUE:add(R0, Q0), + {R1,_Q2} = ?QUEUE:dequeue(Q1), + ?REC:get_a(R1). + +%% But of course calling a function expecting some opaque type +%% with some other opaque typs is not OK +wrong1() -> + Q = ?QUEUE:new(), + ?REC:get_a(Q). |