lib/dialyzer/test/small_SUITE_data/src/recursive_types1.erl


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-module(recursive_types1).

-export([test/0]).

-type tree() :: 'nil' | {non_neg_integer(), tree(), tree()}.

-spec test() -> {42, tree(), tree()}.

test() ->
  {42, {42, nil, nil}, {42, {42, nil, nil}, {42, nil, nil}}}.