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core/types: more easily extensible tx signing (#30372)

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This change makes the code slightly easier for downstream-projects to extend with more signer-types, but if functionalily equivalent to the previous code.
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piersy 2024-09-16 07:51:03 +01:00 committed by GitHub
parent 4c4f21293e
commit 03424962f1
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GPG key ID: B5690EEEBB952194
1 changed files with 21 additions and 15 deletions
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36
core/types/transaction_signing.go
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@ -64,21 +64,24 @@ func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint
// Use this in transaction-handling code where the current block number is unknown. If you // Use this in transaction-handling code where the current block number is unknown. If you
// have the current block number available, use MakeSigner instead. // have the current block number available, use MakeSigner instead.
func LatestSigner(config *params.ChainConfig) Signer { func LatestSigner(config *params.ChainConfig) Signer {
var signer Signer
if config.ChainID != nil { if config.ChainID != nil {
if config.CancunTime != nil { switch {
return NewCancunSigner(config.ChainID) case config.CancunTime != nil:
} signer = NewCancunSigner(config.ChainID)
if config.LondonBlock != nil { case config.LondonBlock != nil:
return NewLondonSigner(config.ChainID) signer = NewLondonSigner(config.ChainID)
} case config.BerlinBlock != nil:
if config.BerlinBlock != nil { signer = NewEIP2930Signer(config.ChainID)
return NewEIP2930Signer(config.ChainID) case config.EIP155Block != nil:
} signer = NewEIP155Signer(config.ChainID)
if config.EIP155Block != nil { default:
return NewEIP155Signer(config.ChainID) signer = HomesteadSigner{}
} }
} else {
signer = HomesteadSigner{}
} }
return HomesteadSigner{} return signer
} }
// LatestSignerForChainID returns the 'most permissive' Signer available. Specifically, // LatestSignerForChainID returns the 'most permissive' Signer available. Specifically,
@ -89,10 +92,13 @@ func LatestSigner(config *params.ChainConfig) Signer {
// configuration are unknown. If you have a ChainConfig, use LatestSigner instead. // configuration are unknown. If you have a ChainConfig, use LatestSigner instead.
// If you have a ChainConfig and know the current block number, use MakeSigner instead. // If you have a ChainConfig and know the current block number, use MakeSigner instead.
func LatestSignerForChainID(chainID *big.Int) Signer { func LatestSignerForChainID(chainID *big.Int) Signer {
if chainID == nil { var signer Signer
return HomesteadSigner{} if chainID != nil {
signer = NewCancunSigner(chainID)
} else {
signer = HomesteadSigner{}
} }
return NewCancunSigner(chainID) return signer
} }
// SignTx signs the transaction using the given signer and private key. // SignTx signs the transaction using the given signer and private key.