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sanmiguel/gen_ale_drinker.erl

Created June 19, 2013 23:36
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-behaviour(gen_ale_drinker).
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gen_ale_drinker.erl
-module(gen_ale_drinker).
%% There are 2 types of drink:
-type style() :: ale | not_ale.
%% Need to support imperial measurements (not US pints though)
-type volume() :: {imperial_pint, non_neg_integer()} | {litre, non_neg_integer()}.
-type beverage() :: {style(), volume()}.
-callback drink(beverage()) -> ok | {error, ebeeroverflow}.
-callback micturate() -> ok | {error, eontherug}.
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