f37d0f75c0
Implement ToJSON and FromJSON for all of the various pieces of the game state, and add a pair of functions saveGame/loadGame implementing a prism to save the game as zlib-compressed JSON. To test this, there's now Arbitrary, CoArbitrary, and Function instances for all the parts of the game state - to get around circular imports with the concrete entities this unfortunately is happening via orphan instances, plus an hs-boot file to break a circular import that was just a little too hard to remove by moving things around. Ugh.
28 lines
875 B
Haskell
28 lines
875 B
Haskell
module Xanthous.Util.QuickCheck
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( FunctionShow(..)
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, functionJSON
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, FunctionJSON(..)
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) where
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import Xanthous.Prelude
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import Test.QuickCheck
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import Test.QuickCheck.Function
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import Test.QuickCheck.Instances.ByteString ()
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import Data.Aeson
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import Data.Coerce
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newtype FunctionShow a = FunctionShow a
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deriving newtype (Show, Read)
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instance (Show a, Read a) => Function (FunctionShow a) where
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function = functionShow
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functionJSON :: (ToJSON a, FromJSON a) => (a -> c) -> a :-> c
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functionJSON = functionMap encode (headEx . decode)
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newtype FunctionJSON a = FunctionJSON a
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deriving newtype (ToJSON, FromJSON)
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instance (ToJSON a, FromJSON a) => Function (FunctionJSON a) where
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function = functionJSON
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