core/vm: check empty in extcodehash
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8ed4739176
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1b6fd032e3
@ -544,7 +544,12 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, contract *Contract,
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// this account should be regarded as a non-existent account and zero should be returned.
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func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
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slot := stack.peek()
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slot.SetBytes(interpreter.evm.StateDB.GetCodeHash(common.BigToAddress(slot)).Bytes())
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address := common.BigToAddress(slot)
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if interpreter.evm.StateDB.Empty(address) {
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slot.SetUint64(0)
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} else {
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slot.SetBytes(interpreter.evm.StateDB.GetCodeHash(address).Bytes())
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}
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return nil, nil
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}
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