apollo

-module(apollo@util).
-compile([no_auto_import, nowarn_unused_vars]).

-export([to_err/2]).
-export_type([any_type/0]).

-type any_type() :: {int_t, integer()} |
    {string_t, binary()} |
    {float_t, float()} |
    {bool_t, boolean()}.

-spec to_err(boolean(), binary()) -> {ok, nil} | {error, binary()}.
to_err(B, Err) ->
    case B of
        true ->
            {ok, nil};

        false ->
            {error, Err}
    end.