[225] Bad extract method

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Hello, given this (somewhat convoluted code):
void
WriteAccountTransactions(XmlWriter writer, Account account)
{
     decimal
     previousBalance = account.GetTransactionsTotal(StartDate.AddDays(-1));
     Xml.WriteXml(
          writer,
          account,
          delegate {
               // Selection starts here
               decimal aggregate = previousBalance;
               using(Xml.WriteXml(writer, Schema.Transactions)) {
                    Xml.WriteXml(
                         writer,
                         Schema.PreviousBalance,
                         previousBalance
                    );
                    foreach(Transaction transaction in GetTransactions(account)) {
                         aggregate += transaction.Value;
                         Xml.WriteXml(
                              writer,
                              transaction,
                              delegate {
                                   Xml.WriteXml(writer, Schema.Aggregate, aggregate);
                              }
                         );
                    }
               }
               // Selection ends here
          }
     );
}

When doing an extract method, R# doesn't add the needed parameters to
the extracted method, it puts them as local variables int method body:

void WriteTransactions()
{
     Account account;
     decimal previousBalance;
     XmlWriter writer;
     decimal aggregate = previousBalance;
     using(Xml.WriteXml(writer, Schema.Transactions)) {
          Xml.WriteXml(
               writer,
               Schema.PreviousBalance,
               previousBalance
          );
          foreach(Transaction transaction in GetTransactions(account)) {
               aggregate += transaction.Value;
               Xml.WriteXml(
                    writer,
                    transaction,
                    delegate {
                         Xml.WriteXml(writer, Schema.Aggregate, aggregate);
                    }
               );
          }
     }
}

Regards,
Pablo
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