diff options
Diffstat (limited to 'lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl')
-rw-r--r-- | lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl b/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl new file mode 100644 index 0000000000..d9b1d59f0c --- /dev/null +++ b/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl @@ -0,0 +1,77 @@ +-module(rec_api). + +-export([t1/0, t2/0, adt_t1/0, adt_t1/1, adt_r1/0, + t/1, t_adt/0, r/0, r_adt/0]). + +-export_type([{a,0},{r1,0}]). + +-export_type([f/0, op_t/0, r/0, tup/0]). + +-opaque a() :: a | b. + +-record(r1, + {f1 :: a()}). + +-opaque r1() :: #r1{}. + +t1() -> + A = #r1{f1 = a}, + {r1, a} = A. + +t2() -> + A = {r1, 10}, % violates the type of #r1{} + {r1, 10} = A. % violates the type of #r1{} + +adt_t1() -> + R = rec_adt:r1(), + {r1, a} = R. % breaks the opaqueness + +-spec adt_t1(rec_adt:r1()) -> rec_adt:r1(). % invalid type spec + +adt_t1(R) -> + {r1, a} = R. + +-spec adt_r1() -> rec_adt:r1(). % invalid type spec + +adt_r1() -> + #r1{f1 = a}. + +-opaque f() :: fun((_) -> _). + +-opaque op_t() :: integer(). + +-spec t(f()) -> _. + +t(A) -> + T = term(), + %% 3(T), % cannot test this: dialyzer_dep deliberately crashes + A(T). + +-spec term() -> op_t(). + +term() -> + 3. + +t_adt() -> + A = rec_adt:f(), + T = term(), + A(T). + +-record(r, {f = fun(_) -> 3 end :: f(), o = 1 :: op_t()}). + +-opaque r() :: #r{}. + +-opaque tup() :: {'r', f(), op_t()}. + +-spec r() -> _. + +r() -> + {r, f(), 2}. % OK, f() is a local opaque type + +-spec f() -> f(). + +f() -> + fun(_) -> 3 end. + +r_adt() -> + {r, rec_adt:f(), 2}. % breaks the opaqueness |