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Handle migrated celo transactions (#150)
Introduces support for encoding/decoding legacy celo transaction types. That covers: Type 0 - The legacy transaction has been updated and now has the celo specific fields added Type 124 - The v1 of the dynamic fee tx. Additionally the transaction code has been updated to be less invasive to the op-geth repo by moving celo code into celo specific files and by removing celo specific methods added to the TxData interface. Additionally I reversed the EthCompatible boolean field since it's used to determine how to encode a legacy tx, and if unset (I.E. EthCompatible == false) then the legacy tx would be encoded as a celo legacy tx, which of course broke a lot of tests. So now the field is called CeloLegacy and if unset the tx will be encoded as an eth compatible transaction.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| // Copyright 2024 The Celo Authors | ||
| // This file is part of the celo library. | ||
| // | ||
| // The celo 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 celo 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 celo library. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| package types | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "math/big" | ||
|
|
||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/rlp" | ||
| ) | ||
|
|
||
| const CeloDynamicFeeTxV2Type = 0x7b | ||
|
|
||
| // CeloDynamicFeeTxV2 represents a CIP-64 transaction. | ||
| type CeloDynamicFeeTxV2 struct { | ||
| ChainID *big.Int | ||
| Nonce uint64 | ||
| GasTipCap *big.Int | ||
| GasFeeCap *big.Int | ||
| Gas uint64 | ||
| To *common.Address `rlp:"nil"` // nil means contract creation | ||
| Value *big.Int | ||
| Data []byte | ||
| AccessList AccessList | ||
|
|
||
| FeeCurrency *common.Address `rlp:"nil"` // nil means native currency | ||
|
|
||
| // Signature values | ||
| V *big.Int `json:"v" gencodec:"required"` | ||
| R *big.Int `json:"r" gencodec:"required"` | ||
| S *big.Int `json:"s" gencodec:"required"` | ||
| } | ||
|
|
||
| // copy creates a deep copy of the transaction data and initializes all fields. | ||
| func (tx *CeloDynamicFeeTxV2) copy() TxData { | ||
| cpy := &CeloDynamicFeeTxV2{ | ||
| Nonce: tx.Nonce, | ||
| To: copyAddressPtr(tx.To), | ||
| Data: common.CopyBytes(tx.Data), | ||
| Gas: tx.Gas, | ||
| FeeCurrency: copyAddressPtr(tx.FeeCurrency), | ||
| // These are copied below. | ||
| AccessList: make(AccessList, len(tx.AccessList)), | ||
| Value: new(big.Int), | ||
| ChainID: new(big.Int), | ||
| GasTipCap: new(big.Int), | ||
| GasFeeCap: new(big.Int), | ||
| V: new(big.Int), | ||
| R: new(big.Int), | ||
| S: new(big.Int), | ||
| } | ||
| copy(cpy.AccessList, tx.AccessList) | ||
| if tx.Value != nil { | ||
| cpy.Value.Set(tx.Value) | ||
| } | ||
| if tx.ChainID != nil { | ||
| cpy.ChainID.Set(tx.ChainID) | ||
| } | ||
| if tx.GasTipCap != nil { | ||
| cpy.GasTipCap.Set(tx.GasTipCap) | ||
| } | ||
| if tx.GasFeeCap != nil { | ||
| cpy.GasFeeCap.Set(tx.GasFeeCap) | ||
| } | ||
| if tx.V != nil { | ||
| cpy.V.Set(tx.V) | ||
| } | ||
| if tx.R != nil { | ||
| cpy.R.Set(tx.R) | ||
| } | ||
| if tx.S != nil { | ||
| cpy.S.Set(tx.S) | ||
| } | ||
| return cpy | ||
| } | ||
|
|
||
| // accessors for innerTx. | ||
| func (tx *CeloDynamicFeeTxV2) txType() byte { return CeloDynamicFeeTxV2Type } | ||
| func (tx *CeloDynamicFeeTxV2) chainID() *big.Int { return tx.ChainID } | ||
| func (tx *CeloDynamicFeeTxV2) accessList() AccessList { return tx.AccessList } | ||
| func (tx *CeloDynamicFeeTxV2) data() []byte { return tx.Data } | ||
| func (tx *CeloDynamicFeeTxV2) gas() uint64 { return tx.Gas } | ||
| func (tx *CeloDynamicFeeTxV2) gasFeeCap() *big.Int { return tx.GasFeeCap } | ||
| func (tx *CeloDynamicFeeTxV2) gasTipCap() *big.Int { return tx.GasTipCap } | ||
| func (tx *CeloDynamicFeeTxV2) gasPrice() *big.Int { return tx.GasFeeCap } | ||
| func (tx *CeloDynamicFeeTxV2) value() *big.Int { return tx.Value } | ||
| func (tx *CeloDynamicFeeTxV2) nonce() uint64 { return tx.Nonce } | ||
| func (tx *CeloDynamicFeeTxV2) to() *common.Address { return tx.To } | ||
| func (tx *CeloDynamicFeeTxV2) isSystemTx() bool { return false } | ||
|
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| func (tx *CeloDynamicFeeTxV2) effectiveGasPrice(dst *big.Int, baseFee *big.Int) *big.Int { | ||
| if baseFee == nil { | ||
| return dst.Set(tx.GasFeeCap) | ||
| } | ||
| tip := dst.Sub(tx.GasFeeCap, baseFee) | ||
| if tip.Cmp(tx.GasTipCap) > 0 { | ||
| tip.Set(tx.GasTipCap) | ||
| } | ||
| return tip.Add(tip, baseFee) | ||
| } | ||
|
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| func (tx *CeloDynamicFeeTxV2) rawSignatureValues() (v, r, s *big.Int) { | ||
| return tx.V, tx.R, tx.S | ||
| } | ||
|
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||
| func (tx *CeloDynamicFeeTxV2) setSignatureValues(chainID, v, r, s *big.Int) { | ||
| tx.ChainID, tx.V, tx.R, tx.S = chainID, v, r, s | ||
| } | ||
|
|
||
| func (tx *CeloDynamicFeeTxV2) encode(b *bytes.Buffer) error { | ||
| return rlp.Encode(b, tx) | ||
| } | ||
|
|
||
| func (tx *CeloDynamicFeeTxV2) decode(input []byte) error { | ||
| return rlp.DecodeBytes(input, tx) | ||
| } |
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