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constants.go
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constants.go
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package types
import (
"github.com/ethereum/go-ethereum/common"
)
// message type and route constants
const (
// TypeMsgEthereumTx defines the type string of an Ethereum txs
TypeMsgEthereumTx = "ethereum_tx"
)
const (
// ModuleName string name of module
ModuleName = "evm"
// StoreKey key for ethereum storage data, account code (StateDB) or block
// related data for Web3.
// The EVM module should use a prefix store.
StoreKey = ModuleName
// TransientKey is the key to access the EVM transient store, that is reset
// during the Commit phase.
TransientKey = "transient_" + ModuleName
// RouterKey uses module name for routing
RouterKey = ModuleName
)
// prefix bytes for the EVM persistent store
const (
prefixCode = iota + 1
prefixStorage
prefixParams
)
// prefix bytes for the EVM transient store
const (
prefixTransientBloom = iota + 1
prefixTransientTxIndex
prefixTransientLogSize
prefixTransientGasUsed
)
// Evm module events
const (
EventTypeEthereumTx = TypeMsgEthereumTx
EventTypeBlockBloom = "block_bloom"
EventTypeTxLog = "tx_log"
AttributeKeyContractAddress = "contract"
AttributeKeyRecipient = "recipient"
AttributeKeyTxHash = "txHash"
AttributeKeyEthereumTxHash = "ethereumTxHash"
AttributeKeyTxIndex = "txIndex"
AttributeKeyTxGasUsed = "txGasUsed"
AttributeKeyTxType = "txType"
AttributeKeyTxLog = "txLog"
// AttributeKeyEthereumTxFailed txs failed in evm execution
AttributeKeyEthereumTxFailed = "ethereumTxFailed"
AttributeValueCategory = ModuleName
AttributeKeyEthereumBloom = "bloom"
MetricKeyTransitionDB = "transition_db"
MetricKeyStaticCall = "static_call"
)
// KVStore key prefixes
var (
KeyPrefixCode = []byte{prefixCode}
KeyPrefixStorage = []byte{prefixStorage}
KeyPrefixParams = []byte{prefixParams}
)
// Transient Store key prefixes
var (
KeyPrefixTransientBloom = []byte{prefixTransientBloom}
KeyPrefixTransientTxIndex = []byte{prefixTransientTxIndex}
KeyPrefixTransientLogSize = []byte{prefixTransientLogSize}
KeyPrefixTransientGasUsed = []byte{prefixTransientGasUsed}
)
// AddressStoragePrefix returns a prefix to iterate over a given account storage.
func AddressStoragePrefix(address common.Address) []byte {
return append(KeyPrefixStorage, address.Bytes()...)
}
// StateKey defines the full key under which an account states is stored.
func StateKey(address common.Address, key []byte) []byte {
return append(AddressStoragePrefix(address), key...)
}
func KeyPrefix(p string) []byte {
return []byte(p)
}