b4ea2bf7dd
Implements TSTORE and TLOAD as specified by the following EIP: https://eips.ethereum.org/EIPS/eip-1153 https://ethereum-magicians.org/t/eip-1153-transient-storage-opcodes/553 Co-authored-by: Sara Reynolds <snreynolds2506@gmail.com> Co-authored-by: Martin Holst Swende <martin@swende.se> Co-authored-by: Gary Rong <garyrong0905@gmail.com>
56 lines
1.8 KiB
Go
56 lines
1.8 KiB
Go
// Copyright 2022 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 state
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import (
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"github.com/ethereum/go-ethereum/common"
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)
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// transientStorage is a representation of EIP-1153 "Transient Storage".
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type transientStorage map[common.Address]Storage
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// newTransientStorage creates a new instance of a transientStorage.
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func newTransientStorage() transientStorage {
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return make(transientStorage)
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}
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// Set sets the transient-storage `value` for `key` at the given `addr`.
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func (t transientStorage) Set(addr common.Address, key, value common.Hash) {
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if _, ok := t[addr]; !ok {
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t[addr] = make(Storage)
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}
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t[addr][key] = value
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}
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// Get gets the transient storage for `key` at the given `addr`.
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func (t transientStorage) Get(addr common.Address, key common.Hash) common.Hash {
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val, ok := t[addr]
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if !ok {
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return common.Hash{}
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}
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return val[key]
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}
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// Copy does a deep copy of the transientStorage
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func (t transientStorage) Copy() transientStorage {
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storage := make(transientStorage)
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for key, value := range t {
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storage[key] = value.Copy()
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}
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return storage
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}
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