core/types: more easily extensible tx signing (#30372)
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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@ -64,21 +64,24 @@ func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint
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// Use this in transaction-handling code where the current block number is unknown. If you
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// have the current block number available, use MakeSigner instead.
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func LatestSigner(config *params.ChainConfig) Signer {
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var signer Signer
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if config.ChainID != nil {
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if config.CancunTime != nil {
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return NewCancunSigner(config.ChainID)
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}
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if config.LondonBlock != nil {
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return NewLondonSigner(config.ChainID)
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}
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if config.BerlinBlock != nil {
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return NewEIP2930Signer(config.ChainID)
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}
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if config.EIP155Block != nil {
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return NewEIP155Signer(config.ChainID)
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switch {
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case config.CancunTime != nil:
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signer = NewCancunSigner(config.ChainID)
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case config.LondonBlock != nil:
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signer = NewLondonSigner(config.ChainID)
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case config.BerlinBlock != nil:
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signer = NewEIP2930Signer(config.ChainID)
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case config.EIP155Block != nil:
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signer = NewEIP155Signer(config.ChainID)
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default:
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signer = HomesteadSigner{}
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}
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} else {
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signer = HomesteadSigner{}
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}
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return HomesteadSigner{}
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return signer
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}
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// LatestSignerForChainID returns the 'most permissive' Signer available. Specifically,
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@ -89,10 +92,13 @@ func LatestSigner(config *params.ChainConfig) Signer {
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// configuration are unknown. If you have a ChainConfig, use LatestSigner instead.
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// If you have a ChainConfig and know the current block number, use MakeSigner instead.
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func LatestSignerForChainID(chainID *big.Int) Signer {
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if chainID == nil {
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return HomesteadSigner{}
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var signer Signer
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if chainID != nil {
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signer = NewCancunSigner(chainID)
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} else {
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signer = HomesteadSigner{}
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}
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return NewCancunSigner(chainID)
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return signer
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}
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// SignTx signs the transaction using the given signer and private key.
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