Transducer.hs

{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE OverloadedRecordDot #-}
{-# LANGUAGE QualifiedDo #-}
-- @generated by keiro-dsl 0.9.0.0 (language keiro-dsl 4) from aggregate Note; do not edit.
module Generated.ReplayDivergence.Note.Transducer
  ( noteTransducer
  , noteFoldFingerprint
  , BehaviorOwnership (..)
  , notePredicateVerifications
  ) where

import Generated.ReplayDivergence.Note.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 ((=:))

noteTransducer
  :: SymTransducer
       (HsPred NoteRegs NoteCommand)
       NoteRegs
       NoteVertex
       NoteCommand
       NoteEvent
noteTransducer =
  B.buildTransducer NoteEmpty initialNoteRegs isTerminal do
    B.from NoteEmpty do
      B.onCmd inCtorWriteNote $ \d -> B.do
        B.slot @"note" =: d.noteText
        B.emit wireNoteWritten (NoteWrittenTermFields
          { noteText = d.noteText
          , echo = d.echo
          })
        B.goto NoteRecorded
 where
  isTerminal = \case
    NoteRecorded -> True
    _ -> False

noteFoldFingerprint :: Text
noteFoldFingerprint = "54c4c90b6f56cfffee8fd8d05b8917d4"

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.
notePredicateVerifications :: IO [(Text, BehaviorOwnership, S.PredicateVerification)]
notePredicateVerifications = sequence
  [ verifyTransition "transition1EmptyWriteNote" GeneratedOwned NoteEmpty 0
  ]
 where
  verifyTransition label owner source edgeIndex =
    case drop edgeIndex (K.edgesOut noteTransducer source) of
      K.Edge predicate _ _ _ _ : _ -> (\result -> (label, owner, result)) <$> S.verifyPredicate predicate
      [] -> pure (label, owner, S.UnverifiedSolverFailure "generated transition edge missing")