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73 lines
1.6 KiB
Erlang
73 lines
1.6 KiB
Erlang
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-module(bat_erlang).
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-export([main/0]).
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-record(test, {
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name :: list(),
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data :: binary()
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}).
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-define(TESTMACRO, "testmacro").
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-spec main() -> ok.
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main() ->
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%% Handling Lists and Numbers
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List = [1, 2, 3, 4, $6, 2#00111],
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_Sum = lists:sum(List),
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_ = [(N * N) + N / N - N || N <- List, N > 2],
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[_Head, _SecondHead | _Tail] = List,
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_ = [1, atom, [list], <<"binary">>, {tuple, tuple}, #{map => key}, #test{name = "record"}],
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%% Handling Binaries
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BinHelloWorld = <<"Hello World">>,
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<<X || <<X:1/binary>> <= BinHelloWorld >>,
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<<0,0,0,0,0,0,0,151>> = <<151:64/signed-integer>>,
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%% Handling Boolean and Atoms
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true = true andalso true,
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true = false orelse true,
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_ = true =:= true,
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_ = false =/= true,
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_ = 'HELLO' /= hello,
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_ = hello == world,
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%% Handling Maps and Records
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TestMap = #{a => 1, b => 2, c => 3},
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#{a := _Value, c := _} = TestMap,
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_ = TestMap#{d => 4},
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Record = #test{name = ?TESTMACRO},
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_ = Record#test.name,
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%% Conditionals
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case TestMap of
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#{b := B} ->
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B;
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_ ->
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ok
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end,
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if
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erlang:is_map(TestMap) ->
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map;
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true ->
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test_function(1)
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end,
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%% Messaging
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Self = erlang:self(),
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Self ! hello_world,
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receive
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hello_world ->
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ok;
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_ ->
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io:format("unknown message")
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after 1000 ->
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timeout
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end,
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ok.
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test_function(N) when erlang:is_integer(N) -> integer;
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test_function([_|_]) -> list;
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test_function(<<_/binary>>) -> binary;
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test_function(_) ->
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undefined.
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