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31 lines
639 B
Plaintext
31 lines
639 B
Plaintext
--State3 effect
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effect State se2 where
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put : ∀ se . se -> {State se} ()
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get : ∀ se . () -> {State se} se
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state : ∀ s a . s -> Effect (State s) a -> (s, a)
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state woot eff = case eff of
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{ State.get () -> k } -> handle (state woot) in (k woot)
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{ State.put snew -> k } -> handle (state snew) in (k ())
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{ a } -> (woot, a)
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ex1 : (UInt64, UInt64)
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ex1 = handle (state 42) in State.get ()
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ex1a : (UInt64, UInt64)
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ex1a = handle (state 42) in 49
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ex1b = handle (x -> 10) in 0
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ex1c : UInt64
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ex1c = handle (x -> 10) in 0
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ex1d = handle (state 42) in 49
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ex2 = handle (state 42) in State.get ()
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ex3 : (UInt64, UInt64)
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ex3 = ex2
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()
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