mirror of https://github.com/voidlizard/hbs2
29 lines
582 B
Haskell
29 lines
582 B
Haskell
{-# Language FunctionalDependencies #-}
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module HBS2.Storage where
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import Data.Kind
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import Data.Proxy
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import HBS2.Hash
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type family Block block :: Type
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type family Key block :: Type
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-- class HasHashFunction h a b where
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-- hashFun :: Proxy a -> b -> Hash h
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class ( Monad m
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, Hashed (StorageHash a block) block
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) => Storage a block m | a -> block where
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type family StorageHash a block :: Type
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putBlock :: a -> Block block -> m (Maybe (Key block))
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getBlock :: a -> Key block -> m (Maybe (Block block))
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listBlocks :: a -> ( Key block -> m () ) -> m ()
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