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-module(suppress_request).
-export([test1/1, test1_b/1, test2/0, test2_b/0,
test3/0, test3_b/0, test4/0, test4_b/0]).
-dialyzer({[specdiffs], test1/1}).
-spec test1(a | b) -> ok. % spec is subtype
test1(A) ->
ok = test1_1(A).
-spec test1_b(a | b) -> ok. % spec is subtype (suppressed by default)
test1_b(A) ->
ok = test1_1(A).
-spec test1_1(a | b | c) -> ok.
test1_1(_) ->
ok.
-dialyzer(unmatched_returns).
test2() ->
tuple(), % unmatched
ok.
test2_b() ->
tuple(), % unmatched
ok.
-dialyzer({[no_return, no_match], [test3/0]}).
test3() -> % no local return (suppressed)
A = fun(_) ->
1
end,
A = 2. % can never succeed (suppressed)
test3_b() -> % no local return (requested by default)
A = fun(_) ->
1
end,
A = 2. % can never succeed (requested by default)
-dialyzer(no_improper_lists).
test4() ->
[1 | 2]. % improper list (suppressed)
-dialyzer({no_improper_lists, test4_b/0}).
test4_b() ->
[1 | 2]. % improper list (suppressed)
tuple() ->
{a, b}.
|
