26 lines
571 B
Erlang
26 lines
571 B
Erlang
-module(provider).
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-export([]).
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-ifdef(no_callback_support).
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%% In the case where R14 or lower is being used to compile the system
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%% we need to export a behaviour info
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-export([behaviour_info/1]).
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-spec behaviour_info(atom()) -> [{atom(), arity()}] | undefined.
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behaviour_info(callbacks) ->
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[{init, 1},
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{do, 1},
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{format_error, 1}];
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behaviour_info(_) ->
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undefined.
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-else.
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-callback init(any()) -> {ok, any()}.
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-callback do(any()) -> {ok, any()} | {error, string()} | {error, {module(), any()}}.
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-callback format_error(any()) -> iolist().
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-endif.
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