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 | 123 |
1 files changed, 123 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..59b9e0fec4 --- /dev/null +++ b/lib/dialyzer/test/opaque_SUITE_data/src/simple/rec_api.erl @@ -0,0 +1,123 @@ +-module(rec_api). + +-export([t1/0, t2/0, t3/0, adt_t1/0, adt_t1/1, adt_r1/0, + t/1, t_adt/0, r/0, r_adt/0, u1/0, u2/0, u3/0, v1/0, v2/0, v3/0]). + +-export_type([{a,0},{r1,0}, r2/0, r3/0]). + +-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}, + {r1, 10} = A, + A = #r1{f1 = 10}, % violates the type of field f1 + #r1{f1 = 10} = A. + +t3() -> + A = {r1, 10}, + #r1{f1 = 10} = A. % violates the type of #r1{} + +adt_t1() -> + R = rec_adt:r1(), + {r1, a} = R. % breaks the opacity + +-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}, + #r{f = f(), o = 2}}. % OK, f() is a local opaque type + +-spec f() -> f(). + +f() -> + fun(_) -> 3 end. + +r_adt() -> + {{r, rec_adt:f(), 2}, + #r{f = rec_adt:f(), o = 2}}. % breaks the opacity + +-record(r2, % like #r1{}, but with initial value + {f1 = a :: a()}). + +-opaque r2() :: #r2{}. + +u1() -> + A = #r2{f1 = a}, + {r2, a} = A. + +u2() -> + A = {r2, 10}, + {r2, 10} = A, + A = #r2{f1 = 10}, % violates the type of field f1 + #r2{f1 = 10} = A. + +u3() -> + A = {r2, 10}, + #r2{f1 = 10} = A. % violates the type of #r2{} + +-record(r3, % like #r1{}, but an opaque type + {f1 = queue:new():: queue:queue()}). + +-opaque r3() :: #r3{}. + +v1() -> + A = #r3{f1 = queue:new()}, + {r3, a} = A. % breaks the opacity + +v2() -> + A = {r3, 10}, + {r3, 10} = A, + A = #r3{f1 = 10}, % violates the type of field f1 + #r3{f1 = 10} = A. + +v3() -> + A = {r3, 10}, + #r3{f1 = 10} = A. % breaks the opacity |