15 lines
360 B
Plaintext
15 lines
360 B
Plaintext
data State = Idle | Waiting | Connected
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data Message = Hello Int | Data Int | Close
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match classify (s : State) (m : Message) : Int =
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| Idle (Hello n) -> n
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| Idle (Data n) -> n
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| Idle Close -> 0
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| Waiting (Hello n) -> n
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| Waiting (Data n) -> n
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| Waiting Close -> 0
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| Connected (Hello n) -> n
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| Connected (Data n) -> n
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| Connected Close -> 0
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