mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
2.6 KiB
92 lines
2.6 KiB
// Copyright 2022 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package state
|
|
|
|
import (
|
|
"fmt"
|
|
"slices"
|
|
"strings"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
)
|
|
|
|
// transientStorage is a representation of EIP-1153 "Transient Storage".
|
|
type transientStorage map[common.Address]Storage
|
|
|
|
// newTransientStorage creates a new instance of a transientStorage.
|
|
func newTransientStorage() transientStorage {
|
|
return make(transientStorage)
|
|
}
|
|
|
|
// Set sets the transient-storage `value` for `key` at the given `addr`.
|
|
func (t transientStorage) Set(addr common.Address, key, value common.Hash) {
|
|
if value == (common.Hash{}) { // this is a 'delete'
|
|
if _, ok := t[addr]; ok {
|
|
delete(t[addr], key)
|
|
if len(t[addr]) == 0 {
|
|
delete(t, addr)
|
|
}
|
|
}
|
|
} else {
|
|
if _, ok := t[addr]; !ok {
|
|
t[addr] = make(Storage)
|
|
}
|
|
t[addr][key] = value
|
|
}
|
|
}
|
|
|
|
// Get gets the transient storage for `key` at the given `addr`.
|
|
func (t transientStorage) Get(addr common.Address, key common.Hash) common.Hash {
|
|
val, ok := t[addr]
|
|
if !ok {
|
|
return common.Hash{}
|
|
}
|
|
return val[key]
|
|
}
|
|
|
|
// Copy does a deep copy of the transientStorage
|
|
func (t transientStorage) Copy() transientStorage {
|
|
storage := make(transientStorage)
|
|
for key, value := range t {
|
|
storage[key] = value.Copy()
|
|
}
|
|
return storage
|
|
}
|
|
|
|
// PrettyPrint prints the contents of the access list in a human-readable form
|
|
func (t transientStorage) PrettyPrint() string {
|
|
out := new(strings.Builder)
|
|
var sortedAddrs []common.Address
|
|
for addr := range t {
|
|
sortedAddrs = append(sortedAddrs, addr)
|
|
slices.SortFunc(sortedAddrs, common.Address.Cmp)
|
|
}
|
|
|
|
for _, addr := range sortedAddrs {
|
|
fmt.Fprintf(out, "%#x:", addr)
|
|
var sortedKeys []common.Hash
|
|
storage := t[addr]
|
|
for key := range storage {
|
|
sortedKeys = append(sortedKeys, key)
|
|
}
|
|
slices.SortFunc(sortedKeys, common.Hash.Cmp)
|
|
for _, key := range sortedKeys {
|
|
fmt.Fprintf(out, " %X : %X\n", key, storage[key])
|
|
}
|
|
}
|
|
return out.String()
|
|
}
|
|
|