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core/types: improve comments in new EIP-2718 code (#22402)

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Responding to these comments:

    https://github.com/ethereum/go-ethereum/pull/21502/files#r579010962
    https://github.com/ethereum/go-ethereum/pull/21502/files#r579021565
    https://github.com/ethereum/go-ethereum/pull/21502/files#r579023510
    https://github.com/ethereum/go-ethereum/pull/21502/files#r578983734
This commit is contained in:
lightclient 2021-03-16 02:48:54 -06:00 committed by GitHub
parent bc47993692
commit 99830720f6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 21 additions and 7 deletions
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5
core/types/hashing.go
View File

@ -36,6 +36,7 @@ var encodeBufferPool = sync.Pool{
New: func() interface{} { return new(bytes.Buffer) },
}
// rlpHash encodes x and hashes the encoded bytes.
func rlpHash(x interface{}) (h common.Hash) {
sha := hasherPool.Get().(crypto.KeccakState)
defer hasherPool.Put(sha)
@ -45,8 +46,8 @@ func rlpHash(x interface{}) (h common.Hash) {
return h
}
// prefixedRlpHash writes the prefix into the hasher before rlp-encoding the
// given interface. It's used for typed transactions.
// prefixedRlpHash writes the prefix into the hasher before rlp-encoding x.
// It's used for typed transactions.
func prefixedRlpHash(prefix byte, x interface{}) (h common.Hash) {
sha := hasherPool.Get().(crypto.KeccakState)
defer hasherPool.Put(sha)

16
core/types/hashing_test.go
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@ -1,3 +1,19 @@
// Copyright 2021 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 types_test
import (

1
core/types/receipt.go
View File

@ -38,6 +38,7 @@ var (
receiptStatusSuccessfulRLP = []byte{0x01}
)
// This error is returned when a typed receipt is decoded, but the string is empty.
var errEmptyTypedReceipt = errors.New("empty typed receipt bytes")
const (

6
core/types/transaction_signing.go
View File

@ -207,11 +207,7 @@ func (s eip2930Signer) Sender(tx *Transaction) (common.Address, error) {
func (s eip2930Signer) SignatureValues(tx *Transaction, sig []byte) (R, S, V *big.Int, err error) {
switch txdata := tx.inner.(type) {
case *LegacyTx:
R, S, V = decodeSignature(sig)
if s.chainId.Sign() != 0 {
V = big.NewInt(int64(sig[64] + 35))
V.Add(V, s.chainIdMul)
}
return s.EIP155Signer.SignatureValues(tx, sig)
case *AccessListTx:
// Check that chain ID of tx matches the signer. We also accept ID zero here,
// because it indicates that the chain ID was not specified in the tx.