Refactor and simplify code to not use Data.Has #903
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| @@ -40,7 +40,7 @@ mutator Deletion = deleteRandList | |||
| selectAndMutate :: MonadRandom m | |||
| => ([Tx] -> m [Tx]) -> Corpus -> m [Tx] | |||
| selectAndMutate f ctxs = do | |||
| rtxs <- weighted $ map (\(i, txs) -> (txs, fromInteger i)) $ DS.toDescList ctxs | |||
| rtxs <- weighted $ map (\(i, txs) -> (txs, fromIntegral i)) $ DS.toDescList ctxs | |||
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Why this was changed?
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I changed Integer to Int in the Corpus type type Corpus = Set (Int, [Tx]) as we don't need an unbounded Integer there.
lib/Echidna/Transaction.hs
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| return a | ||
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| -- | Transform an EVM action from HEVM to our MonadState VM | ||
| fromEVM :: MonadState VM m => EVM a -> m a |
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Should we move this to a different file?
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what about moving it to Echidna.Types?
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We've been using
Data.Hasextensively and it's been a significant pattern in our code. While it allows for more abstract code to be written, it's not a commonly used library and it comes at a cost of substantial mental load as it was often hard to understand what the code is doing.This PR removes all
Data.Hasfrom our code and replaces it with more common patterns, in the hope to improve the project's maintenance and development.I also enabled the
OverloadedRecordDotextension that comes with GHC 9.2 that somewhat fixes the records so they can be accessed like in "normal" languages 😄.