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core/vm: add note about early return in gasCallEIP7702
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@ -257,6 +257,10 @@ var (
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)
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func gasCallEIP7702(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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// Return early if this call attempts to transfer value in a static context.
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// Although it's checked in `gasCall`, EIP-7702 loads the target's code before
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// to determine if it is resolving a delegation. This could incorrectly record
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// the target in the block access list (BAL) if the call later fails.
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transfersValue := !stack.Back(2).IsZero()
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if evm.readOnly && transfersValue {
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return 0, ErrWriteProtection
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