mirror of
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93 lines
3.1 KiB
Go
93 lines
3.1 KiB
Go
// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//nolint:scopelint
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package state
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import (
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"context"
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"github.com/holiman/uint256"
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"github.com/ledgerwatch/erigon/common"
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"github.com/ledgerwatch/erigon/core/types/accounts"
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)
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const (
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//FirstContractIncarnation - first incarnation for contract accounts. After 1 it increases by 1.
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FirstContractIncarnation = 1
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//NonContractIncarnation incarnation for non contracts
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NonContractIncarnation = 0
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)
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type StateReader interface {
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ReadAccountData(address common.Address) (*accounts.Account, error)
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ReadAccountStorage(address common.Address, incarnation uint64, key *common.Hash) ([]byte, error)
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ReadAccountCode(address common.Address, incarnation uint64, codeHash common.Hash) ([]byte, error)
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ReadAccountCodeSize(address common.Address, incarnation uint64, codeHash common.Hash) (int, error)
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ReadAccountIncarnation(address common.Address) (uint64, error)
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}
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type StateWriter interface {
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UpdateAccountData(ctx context.Context, address common.Address, original, account *accounts.Account) error
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UpdateAccountCode(address common.Address, incarnation uint64, codeHash common.Hash, code []byte) error
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DeleteAccount(ctx context.Context, address common.Address, original *accounts.Account) error
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WriteAccountStorage(ctx context.Context, address common.Address, incarnation uint64, key *common.Hash, original, value *uint256.Int) error
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CreateContract(address common.Address) error
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}
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type WriterWithChangeSets interface {
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StateWriter
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WriteChangeSets() error
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WriteHistory() error
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}
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type NoopWriter struct {
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}
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var noopWriter = &NoopWriter{}
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func NewNoopWriter() *NoopWriter {
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return noopWriter
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}
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func (nw *NoopWriter) UpdateAccountData(_ context.Context, address common.Address, original, account *accounts.Account) error {
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return nil
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}
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func (nw *NoopWriter) DeleteAccount(_ context.Context, address common.Address, original *accounts.Account) error {
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return nil
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}
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func (nw *NoopWriter) UpdateAccountCode(address common.Address, incarnation uint64, codeHash common.Hash, code []byte) error {
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return nil
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}
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func (nw *NoopWriter) WriteAccountStorage(_ context.Context, address common.Address, incarnation uint64, key *common.Hash, original, value *uint256.Int) error {
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return nil
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}
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func (nw *NoopWriter) CreateContract(address common.Address) error {
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return nil
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}
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func (nw *NoopWriter) WriteChangeSets() error {
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return nil
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}
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func (nw *NoopWriter) WriteHistory() error {
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return nil
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}
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