16df7725c5
* evm: export genesis state * x/evm: split keeper.go * x/evm: retrieve storage from address * changelog * fixes * add check for nil logs * update validation func * fixes * fix non-determinism * stop storage iteration * remove error return value * update changelog * fix test * lint
66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
package types
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import (
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"bytes"
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"errors"
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"math/big"
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ethcmn "github.com/ethereum/go-ethereum/common"
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)
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var zeroAddrBytes = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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type (
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// GenesisState defines the application's genesis state. It contains all the
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// information required and accounts to initialize the blockchain.
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GenesisState struct {
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Accounts []GenesisAccount `json:"accounts"`
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}
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// GenesisStorage represents the GenesisAccount Storage map as single key value
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// pairs. This is to prevent non determinism at genesis initialization or export.
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GenesisStorage struct {
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Key ethcmn.Hash `json:"key"`
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Value ethcmn.Hash `json:"value"`
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}
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// GenesisAccount defines an account to be initialized in the genesis state.
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// Its main difference between with Geth's GenesisAccount is that it uses a custom
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// storage type and that it doesn't contain the private key field.
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GenesisAccount struct {
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Address ethcmn.Address `json:"address"`
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Balance *big.Int `json:"balance"`
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Code []byte `json:"code,omitempty"`
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Storage []GenesisStorage `json:"storage,omitempty"`
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}
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)
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// NewGenesisStorage creates a new GenesisStorage instance
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func NewGenesisStorage(key, value ethcmn.Hash) GenesisStorage {
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return GenesisStorage{
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Key: key,
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Value: value,
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}
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}
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// DefaultGenesisState sets default evm genesis state with empty accounts.
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func DefaultGenesisState() GenesisState {
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return GenesisState{
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Accounts: []GenesisAccount{},
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}
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}
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// Validate performs basic genesis state validation returning an error upon any
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// failure.
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func (gs GenesisState) Validate() error {
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for _, acc := range gs.Accounts {
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if bytes.Equal(acc.Address.Bytes(), zeroAddrBytes) {
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return errors.New("invalid GenesisAccount: address cannot be empty")
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}
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if acc.Balance == nil {
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return errors.New("invalid GenesisAccount: balance cannot be empty")
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}
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}
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return nil
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}
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