35 lines
723 B
Elixir
35 lines
723 B
Elixir
defmodule Calculator do
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def start do
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spawn(fn -> loop(0) end)
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end
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defp loop(current_value) do
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new_value =
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receive do
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message -> process_message(current_value, message)
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end
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loop(new_value)
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end
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defp process_message(current_value, {:value, caller}) do
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send(caller, {:response, current_value})
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current_value
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end
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defp process_message(current_value, {:add, value}) do
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current_value + value
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end
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defp process_message(current_value, {:sub, value}) do
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current_value - value
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end
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defp process_message(current_value, {:mul, value}) do
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current_value * value
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end
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defp process_message(current_value, {:div, value}) do
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current_value / value
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end
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end
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