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18 lines
431 B
Plaintext
18 lines
431 B
Plaintext
--IO/State1 ability
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structural ability IO where
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launchMissiles : {IO} ()
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structural ability 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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foo : () -> {IO} ()
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foo unit =
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-- inner binding can't access outer abilities unless it declares
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-- them explicitly
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incBy : Int -> {State Int} ()
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incBy i =
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launchMissiles -- not allowed
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y = State.get()
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State.put (y Int.+ i)
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()
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()
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