UpgradePurposeType
enum UpgradePurposeType : uint8 {
ConsensusParameters = 0,
StateTransition = 1,
}| name | type | description |
|---|---|---|
type | UpgradePurposeType | Type of upgrade purpose. |
data | One of ConsensusParameters , StateTransition | Upgrade purposes. |
Transaction is invalid if:
-
typeis not validUpgradePurposeTypevalue`
ConsensusParameters
| name | type | description |
|---|---|---|
witnessIndex | uint16 | Index of witness that contains a serialized(with postcard ) consensus parameters. |
checksum | byte[32] | The hash of the serialized consensus parameters. |
Given helper deserialize_consensus_parameters() that deserializes the consensus parameters from a witness by using postcard algorithm.
Transaction is invalid if:
-
witnessIndex >= tx.witnessesCount -
checksum != sha256(tx.data.witnesses[witnessIndex]) -
deserialize_consensus_parameters(tx.data.witnesses[witnessIndex])returns an error.
StateTransition
| name | type | description |
|---|---|---|
bytecodeRoot | byte[32] | The root of the new bytecode of the state transition function. |