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53 lines
2.0 KiB
53 lines
2.0 KiB
// Copyright 2023 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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package triestate
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import "github.com/ethereum/go-ethereum/common"
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// Set represents a collection of mutated states during a state transition.
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// The value refers to the original content of state before the transition
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// is made. Nil means that the state was not present previously.
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type Set struct {
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Accounts map[common.Address][]byte // Mutated account set, nil means the account was not present
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Storages map[common.Address]map[common.Hash][]byte // Mutated storage set, nil means the slot was not present
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size common.StorageSize // Approximate size of set
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}
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// New constructs the state set with provided data.
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func New(accounts map[common.Address][]byte, storages map[common.Address]map[common.Hash][]byte) *Set {
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return &Set{
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Accounts: accounts,
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Storages: storages,
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}
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}
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// Size returns the approximate memory size occupied by the set.
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func (s *Set) Size() common.StorageSize {
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if s.size != 0 {
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return s.size
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}
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for _, account := range s.Accounts {
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s.size += common.StorageSize(common.AddressLength + len(account))
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}
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for _, slots := range s.Storages {
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for _, val := range slots {
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s.size += common.StorageSize(common.HashLength + len(val))
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}
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s.size += common.StorageSize(common.AddressLength)
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}
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return s.size
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}
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