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-module(order).
-export([t1/0, t2/0, t3/0, t4/0, t5/0, t6/0]).
t1() ->
case maps:get(a, #{a=>1, a=>b}) of
Int when is_integer(Int) -> fail;
Atom when is_atom(Atom) -> error(ok);
_Else -> fail
end.
t2() ->
case maps:get(a, #{a=>id_1(1), a=>id_b(b)}) of
Int when is_integer(Int) -> fail;
Atom when is_atom(Atom) -> error(ok);
_Else -> fail
end.
t3() ->
case maps:get(a, #{a=>id_1(1), id_a(a)=>id_b(b)}) of
Int when is_integer(Int) -> fail;
Atom when is_atom(Atom) -> error(ok);
_Else -> fail
end.
t4() ->
case maps:get(a, #{a=>id_1(1), a_or_b()=>id_b(b)}) of
Int when is_integer(Int) -> ok;
Atom when is_atom(Atom) -> ok;
_Else -> fail
end.
t5() ->
case maps:get(c, #{c=>id_1(1), a_or_b()=>id_b(b)}) of
Int when is_integer(Int) -> error(ok);
Atom when is_atom(Atom) -> fail;
_Else -> fail
end.
t6() ->
case maps:get(a, #{a_or_b()=>id_1(1), id_a(a)=>id_b(b)}) of
Int when is_integer(Int) -> fail;
Atom when is_atom(Atom) -> error(ok);
_Else -> fail
end.
id_1(X) -> X.
id_a(X) -> X.
id_b(X) -> X.
any() -> binary_to_term(<<>>).
-spec a_or_b() -> a | b.
a_or_b() -> any().
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