diff options
Diffstat (limited to 'lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque')
5 files changed, 79 insertions, 0 deletions
diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl new file mode 100644 index 0000000000..3456f0e9c6 --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_adt.erl @@ -0,0 +1,9 @@ +-module(opaque_adt). +-export([atom_or_list/1]). + +-opaque abc() :: 'a' | 'b' | 'c'. + +atom_or_list(1) -> a; +atom_or_list(2) -> b; +atom_or_list(3) -> c; +atom_or_list(N) -> lists:duplicate(N, a). diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug1.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug1.erl new file mode 100644 index 0000000000..ff0b1d05ab --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug1.erl @@ -0,0 +1,17 @@ +%%--------------------------------------------------------------------- +%% A test for which the analysis went into an infinite loop due to +%% specialization using structured type instead of the opaque one. +%%--------------------------------------------------------------------- + +-module(opaque_bug1). + +-export([test/1]). + +-record(c, {a::atom()}). + +-opaque erl_type() :: 'any' | #c{}. + +test(#c{a=foo} = T) -> local(T). + +local(#c{a=foo}) -> any. + diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug2.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug2.erl new file mode 100644 index 0000000000..f193a58f59 --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug2.erl @@ -0,0 +1,13 @@ +%%--------------------------------------------------------------------- +%% A test for which the analysis gave a bogus warning due to +%% considering the function call name to be of opaque type... +%%--------------------------------------------------------------------- + +-module(opaque_bug2). + +-export([test/0]). + +-opaque o() :: 'map'. + +test() -> + lists:map(fun(X) -> X+1 end, [1,2]). diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug3.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug3.erl new file mode 100644 index 0000000000..71da82a1f6 --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug3.erl @@ -0,0 +1,19 @@ +%%--------------------------------------------------------------------- +%% A test for which the analysis gave wrong results because it did not +%% handle the is_tuple/1 guard properly. +%%--------------------------------------------------------------------- + +-module(opaque_bug3). + +-export([test/1]). + +-record(c, {}). + +-opaque o() :: 'a' | #c{}. + +-spec test(o()) -> 42. + +test(#c{} = O) -> t(O). + +t(T) when is_tuple(T) -> 42; +t(a) -> gazonk. diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug4.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug4.erl new file mode 100644 index 0000000000..a7ddc80fe8 --- /dev/null +++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/opaque/opaque_bug4.erl @@ -0,0 +1,21 @@ +%%--------------------------------------------------------------------- +%% A test for which the analysis gave wrong results due to erroneous +%% specialization and incorrect handling of unions. +%%--------------------------------------------------------------------- + +-module(opaque_bug4). + +-export([ok/0, wrong/0]). + +%-spec ok() -> 'ok'. +ok() -> + L = opaque_adt:atom_or_list(42), + foo(L). + +%-spec wrong() -> 'not_ok'. +wrong() -> + A = opaque_adt:atom_or_list(1), + foo(A). + +foo(a) -> not_ok; +foo([_|_]) -> ok. |