| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
EVM.SymExec
Synopsis
- sbytes32 :: Query [SWord 8]
- sbytes128 :: Query [SWord 8]
- sbytes256 :: Query [SWord 8]
- sbytes512 :: Query [SWord 8]
- sbytes1024 :: Query [SWord 8]
- mkByte :: Query [SWord 8]
- symAbiArg :: AbiType -> Query ([SWord 8], W256)
- symCalldata :: Text -> [AbiType] -> [String] -> Query ([SWord 8], W256)
- abstractVM :: Maybe (Text, [AbiType]) -> [String] -> ByteString -> StorageModel -> Query VM
- loadSymVM :: ContractCode -> Storage -> StorageModel -> SAddr -> SymWord -> (Buffer, SymWord) -> VM
- data BranchInfo = BranchInfo {
- _vm :: VM
- _branchCondition :: Maybe Whiff
- doInterpret :: Fetcher -> Maybe Integer -> VM -> Query (Tree BranchInfo)
- interpret' :: Fetcher -> Maybe Integer -> VM -> Query (VM, [Tree BranchInfo])
- interpret :: Fetcher -> Maybe Integer -> Stepper a -> StateT VM Query [a]
- maxIterationsReached :: VM -> Maybe Integer -> Maybe Bool
- type Precondition = VM -> SBool
- type Postcondition = (VM, VM) -> SBool
- checkAssert :: ByteString -> Maybe (Text, [AbiType]) -> [String] -> Query (Either (Tree BranchInfo) (Tree BranchInfo), VM)
- checkAssertions :: Postcondition
- verifyContract :: ByteString -> Maybe (Text, [AbiType]) -> [String] -> StorageModel -> Precondition -> Maybe Postcondition -> Query (Either (Tree BranchInfo) (Tree BranchInfo), VM)
- pruneDeadPaths :: [VM] -> [VM]
- consistentPath :: VM -> Query (Maybe VM)
- consistentTree :: Tree BranchInfo -> Query (Maybe (Tree BranchInfo))
- leaves :: Tree BranchInfo -> [VM]
- verify :: VM -> Maybe Integer -> Maybe (BlockNumber, Text) -> Maybe Postcondition -> Query (Either (Tree BranchInfo) (Tree BranchInfo))
- equivalenceCheck :: ByteString -> ByteString -> Maybe Integer -> Maybe (Text, [AbiType]) -> Query (Either ([VM], [VM]) VM)
- both' :: (a -> b) -> (a, a) -> (b, b)
- showCounterexample :: VM -> Maybe (Text, [AbiType]) -> Query ()
Documentation
sbytes32 :: Query [SWord 8] Source #
Convenience functions for generating large symbolic byte strings
sbytes128 :: Query [SWord 8] Source #
Convenience functions for generating large symbolic byte strings
sbytes256 :: Query [SWord 8] Source #
Convenience functions for generating large symbolic byte strings
sbytes512 :: Query [SWord 8] Source #
Convenience functions for generating large symbolic byte strings
sbytes1024 :: Query [SWord 8] Source #
Convenience functions for generating large symbolic byte strings
symCalldata :: Text -> [AbiType] -> [String] -> Query ([SWord 8], W256) Source #
Generates calldata matching given type signature, optionally specialized with concrete arguments. Any argument given as "symbolic" or omitted at the tail of the list are kept symbolic.
abstractVM :: Maybe (Text, [AbiType]) -> [String] -> ByteString -> StorageModel -> Query VM Source #
loadSymVM :: ContractCode -> Storage -> StorageModel -> SAddr -> SymWord -> (Buffer, SymWord) -> VM Source #
data BranchInfo Source #
Constructors
| BranchInfo | |
Fields
| |
doInterpret :: Fetcher -> Maybe Integer -> VM -> Query (Tree BranchInfo) Source #
interpret :: Fetcher -> Maybe Integer -> Stepper a -> StateT VM Query [a] Source #
Interpreter which explores all paths at | branching points. | returns a list of possible final evm states
type Precondition = VM -> SBool Source #
checkAssert :: ByteString -> Maybe (Text, [AbiType]) -> [String] -> Query (Either (Tree BranchInfo) (Tree BranchInfo), VM) Source #
verifyContract :: ByteString -> Maybe (Text, [AbiType]) -> [String] -> StorageModel -> Precondition -> Maybe Postcondition -> Query (Either (Tree BranchInfo) (Tree BranchInfo), VM) Source #
pruneDeadPaths :: [VM] -> [VM] Source #
consistentTree :: Tree BranchInfo -> Query (Maybe (Tree BranchInfo)) Source #
verify :: VM -> Maybe Integer -> Maybe (BlockNumber, Text) -> Maybe Postcondition -> Query (Either (Tree BranchInfo) (Tree BranchInfo)) Source #
Symbolically execute the VM and check all endstates against the postcondition, if available. Returns `Right (Tree BranchInfo)` if the postcondition can be violated, or or `Left (Tree BranchInfo)`, if the postcondition holds for all endstates.
equivalenceCheck :: ByteString -> ByteString -> Maybe Integer -> Maybe (Text, [AbiType]) -> Query (Either ([VM], [VM]) VM) Source #
Compares two contract runtimes for trace equivalence by running two VMs and comparing the end states.