diff options
Diffstat (limited to 'lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque')
3 files changed, 82 insertions, 0 deletions
diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_queue_adt.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_queue_adt.erl new file mode 100644 index 0000000000..ac59f19cd3 --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_queue_adt.erl @@ -0,0 +1,26 @@ +%%--------------------------------------------------------------------------- +%% A clone of 'queue_adt' so as to test its combination with 'rec_adt' +%%--------------------------------------------------------------------------- +-module(mixed_opaque_queue_adt). + +-export([new/0, add/2, dequeue/1, is_empty/1]). + +-opaque my_queue() :: list(). + +-spec new() -> my_queue(). +new() -> + []. + +-spec add(term(), my_queue()) -> my_queue(). +add(E, Q) -> + Q ++ [E]. + +-spec dequeue(my_queue()) -> {term(), my_queue()}. +dequeue([H|T]) -> + {H, T}. + +-spec is_empty(my_queue()) -> boolean(). +is_empty([]) -> + true; +is_empty([_|_]) -> + false. diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_rec_adt.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_rec_adt.erl new file mode 100644 index 0000000000..61bae5110d --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/mixed_opaque/mixed_opaque_rec_adt.erl @@ -0,0 +1,25 @@ +%%--------------------------------------------------------------------------- +%% A clone of 'rec_adt' so as to test its combination with 'queue_adt' +%%--------------------------------------------------------------------------- +-module(mixed_opaque_rec_adt). + +-export([new/0, get_a/1, get_b/1, set_a/2, set_b/2]). + +-record(rec, {a :: atom(), b = 0 :: integer()}). + +-opaque rec() :: #rec{}. + +-spec new() -> rec(). +new() -> #rec{a = gazonk, b = 42}. + +-spec get_a(rec()) -> atom(). +get_a(#rec{a = A}) -> A. + +-spec get_b(rec()) -> integer(). +get_b(#rec{b = B}) -> B. + +-spec set_a(rec(), atom()) -> rec(). +set_a(R, A) -> R#rec{a = A}. + +-spec set_b(rec(), integer()) -> rec(). +set_b(R, B) -> R#rec{b = B}. 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). |