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Expose checkpoint state projections #1

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Expose checkpoint state projections #1

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25 changes: 20 additions & 5 deletions EvmYul/Yul/StateOps.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -107,23 +107,38 @@ def lookup! (var : Identifier) : Yul.State → Literal

def toSharedState : State → EvmYul.SharedState .Yul
| Ok s _ => s
| _ => default
| Checkpoint (.Continue s _) => s
| Checkpoint (.Break s _) => s
| Checkpoint (.Leave s _) => s
| OutOfFuel => default

def executionEnv : State → EvmYul.ExecutionEnv .Yul
| Ok s _ => s.executionEnv
| _ => default
| Checkpoint (.Continue s _) => s.executionEnv
| Checkpoint (.Break s _) => s.executionEnv
| Checkpoint (.Leave s _) => s.executionEnv
| OutOfFuel => default

def toMachineState : State → EvmYul.MachineState
| Ok s _ => s.toMachineState
| _ => default
| Checkpoint (.Continue s _) => s.toMachineState
| Checkpoint (.Break s _) => s.toMachineState
| Checkpoint (.Leave s _) => s.toMachineState
| OutOfFuel => default

def toState : State → EvmYul.State .Yul
| Ok s _ => s.toState
| _ => default
| Checkpoint (.Continue s _) => s.toState
| Checkpoint (.Break s _) => s.toState
| Checkpoint (.Leave s _) => s.toState
| OutOfFuel => default

def store : State → VarStore
| Ok _ store => store
| _ => default
| Checkpoint (.Continue _ store) => store
| Checkpoint (.Break _ store) => store
| Checkpoint (.Leave _ store) => store
| OutOfFuel => default

-- | All state-related functions should be prefix operators so they can be read right-to-left.

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