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core/types: allow fee comparison with large basefee

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Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
This commit is contained in:
Csaba Kiraly 2026-01-19 21:57:13 +01:00
parent bb6503f36a
commit b6e2b3e860
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GPG key ID: 0FE274EE8C95166E
1 changed files with 25 additions and 2 deletions
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27
core/types/transaction.go
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@ -396,14 +396,37 @@ func (tx *Transaction) calcEffectiveGasTip(dst *uint256.Int, baseFee *uint256.In
return err
}
// EffectiveGasTipValue returns the effective gasTip value for the given base fee,
// even if it would be negative. This can be used for sorting purposes.
func (tx *Transaction) EffectiveGasTipValue(baseFee *big.Int) *big.Int {
// min(gasTipCap, gasFeeCap - baseFee)
dst := new(big.Int)
if baseFee == nil {
dst.Set(tx.inner.gasTipCap())
return dst
}
dst.Sub(tx.inner.gasFeeCap(), baseFee) // gasFeeCap - baseFee
gasTipCap := tx.inner.gasTipCap()
if gasTipCap.Cmp(dst) < 0 { // gasTipCap < (gasFeeCap - baseFee)
dst.Set(gasTipCap)
}
return dst
}
func (tx *Transaction) EffectiveGasTipCmp(other *Transaction, baseFee *uint256.Int) int {
if baseFee == nil {
return tx.GasTipCapCmp(other)
}
// Use more efficient internal method.
txTip, otherTip := new(uint256.Int), new(uint256.Int)
tx.calcEffectiveGasTip(txTip, baseFee)
other.calcEffectiveGasTip(otherTip, baseFee)
err1 := tx.calcEffectiveGasTip(txTip, baseFee)
err2 := other.calcEffectiveGasTip(otherTip, baseFee)
if err1 != nil || err2 != nil {
// fall back to big int comparison in case of error
base := baseFee.ToBig()
return tx.EffectiveGasTipValue(base).Cmp(other.EffectiveGasTipValue(base))
}
return txTip.Cmp(otherTip)
}