Transducer.hs

{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE QualifiedDo #-}
-- @generated by keiro-dsl 0.18.0.0 (language keiro-dsl 6) from aggregate HashStore; do not edit.
module Generated.RefinedBase16.HashStore.Transducer
  ( hashStoreTransducer
  , hashStoreFoldFingerprint
  , BehaviorOwnership (..)
  , hashStorePredicateVerifications
  ) where

import Generated.RefinedBase16.HashStore.Domain
import Data.Text (Text)
import Keiki.Builder qualified as B
import Keiki.Core (HsPred, SymTransducer)
import Keiki.Core qualified as K
import Keiki.Symbolic qualified as S
import Keiki.Builder ((=:))

hashStoreTransducer
  :: SymTransducer
       (HsPred HashStoreRegs HashStoreCommand)
       HashStoreRegs
       HashStoreVertex
       HashStoreCommand
       HashStoreEvent
hashStoreTransducer =
  B.buildTransducer HashStoreEmpty initialHashStoreRegs isTerminal do
    B.from HashStoreEmpty do
      B.onCmd inCtorStoreHash $ \d -> B.do
        B.slot @"current" =: d.hash
        B.emit wireHashStored (HashStoredTermFields
          { hash = d.hash
          , optionalHash = d.optionalHash
          , envelope = d.envelope
          })
        B.emit wireHashAudited (HashAuditedTermFields
          { hash = d.hash
          , optionalHash = d.optionalHash
          , envelope = d.envelope
          })
        B.goto HashStoreStored
      B.onCmd inCtorImportLegacyHash $ \d -> B.do
        B.replayOnly
        B.slot @"current" =: d.hash
        B.emit wireLegacyHashImported (LegacyHashImportedTermFields
          { hash = d.hash
          , optionalHash = d.optionalHash
          , envelope = d.envelope
          })
        B.goto HashStoreStored
 where
  isTerminal = \case
    HashStoreStored -> True
    _ -> False

hashStoreFoldFingerprint :: Text
hashStoreFoldFingerprint = "98eb08049a063d1b890b6476513e690a"

data BehaviorOwnership = GeneratedOwned | HoleOwned
  deriving stock (Eq, Show)

-- Every checked transition predicate is audited through Keiki's conservative
-- symbolic verifier. Opaque Hole terms remain explicitly unverified.
hashStorePredicateVerifications :: IO [(Text, BehaviorOwnership, S.PredicateVerification)]
hashStorePredicateVerifications = sequence
  [ verifyTransition "transition1EmptyStoreHash" GeneratedOwned HashStoreEmpty 0
  , verifyTransition "transition2EmptyImportLegacyHash" GeneratedOwned HashStoreEmpty 1
  ]
 where
  verifyTransition label owner source edgeIndex =
    case drop edgeIndex (K.edgesOut hashStoreTransducer source) of
      K.Edge predicate _ _ _ _ : _ -> (\result -> (label, owner, result)) <$> S.verifyPredicate predicate
      [] -> pure (label, owner, S.UnverifiedSolverFailure "generated transition edge missing")