57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
package types
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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ethcmn "github.com/ethereum/go-ethereum/common"
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)
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const (
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// ModuleName string name of module
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ModuleName = "evm"
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// StoreKey key for ethereum storage data, account code (StateDB) or block
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// related data for Web3.
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// The EVM module should use a prefix store.
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StoreKey = ModuleName
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// RouterKey uses module name for routing
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RouterKey = ModuleName
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)
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// KVStore key prefixes
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var (
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KeyPrefixBloom = []byte{0x01}
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KeyPrefixLogs = []byte{0x02}
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KeyPrefixCode = []byte{0x03}
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KeyPrefixStorage = []byte{0x04}
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KeyPrefixChainConfig = []byte{0x05}
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KeyPrefixHeightHash = []byte{0x06}
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)
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// HeightHashKey returns the key for the given chain epoch and height.
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// The key will be composed in the following order:
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// key = prefix + bytes(height)
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// This ordering facilitates the iteration by height for the EVM GetHashFn
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// queries.
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func HeightHashKey(height uint64) []byte {
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return sdk.Uint64ToBigEndian(height)
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}
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// BloomKey defines the store key for a block Bloom
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func BloomKey(height int64) []byte {
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return sdk.Uint64ToBigEndian(uint64(height))
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}
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// AddressStoragePrefix returns a prefix to iterate over a given account storage.
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func AddressStoragePrefix(address ethcmn.Address) []byte {
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return append(KeyPrefixStorage, address.Bytes()...)
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}
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// StateKey defines the full key under which an account state is stored.
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func StateKey(address ethcmn.Address, key []byte) []byte {
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return append(AddressStoragePrefix(address), key...)
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}
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// TODO: fix Logs key and append block hash
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