Mercurial > hg > Papers > 2018 > ryokka-sigos
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fix slides
author | ryokka |
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date | Mon, 21 May 2018 00:29:29 +0900 |
parents | 4312a27022d1 |
children |
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record StackMethods {n m : Level } (a : Set n ) {t : Set m }(stackImpl : Set n ) : Set (m Level.⊔ n) where field push : stackImpl -> a -> (stackImpl -> t) -> t pop : stackImpl -> (stackImpl -> Maybe a -> t) -> t open StackMethods record Stack {n m : Level } (a : Set n ) {t : Set m } (si : Set n ) : Set (m Level.⊔ n) where field stack : si stackMethods : StackMethods {n} {m} a {t} si pushStack : a -> (Stack a si -> t) -> t pushStack d next = push (stackMethods ) (stack ) d (\s1 -> next (record {stack = s1 ; stackMethods = stackMethods } )) popStack : (Stack a si -> Maybe a -> t) -> t popStack next = pop (stackMethods ) (stack ) (\s1 d1 -> next (record {stack = s1 ; stackMethods = stackMethods }) d1 ) open Stack