Merge #17154: wallet: Remove return value from CommitTransaction

9e95931865 [wallet] Remove `state` argument from CWallet::CommitTransaction (John Newbery)
d1734f9a3b [wallet] Remove return value from CommitTransaction() (John Newbery)
b6f486a02b [wallet] Add doxygen comment to CWallet::CommitTransaction() (John Newbery)
8bba91b22d [wallet] Fix whitespace in CWallet::CommitTransaction() (John Newbery)

Pull request description:

  `CommitTransaction()` returns a bool to indicate success, but since commit
  b3a7410 (#9302) it only returns true, even if the transaction was not
  successfully broadcast. This commit changes CommitTransaction() to return
  void.

  All dead code in `if (!CommitTransaction())` branches has been removed.

  Two additional commits fix up the idiosyncratic whitespace in `CommitTransaction` and add a doxygen comment for the function.

ACKs for top commit:
  laanwj:
    ACK 9e95931865

Tree-SHA512: a55a2c20369a45222fc0e02d0891495655a926e71c4f52cb72624768dd7b9c1dca716ea67d38420afb90f40c6e0fd448caa60c18fd693bb10ecb110b641820e6

src/qt/sendcoinsdialog.cpp

@@ -558,8 +558,7 @@ void SendCoinsDialog::processSendCoinsReturn(const WalletModel::SendCoinsReturn
     msgParams.second = CClientUIInterface::MSG_WARNING;
 
     // This comment is specific to SendCoinsDialog usage of WalletModel::SendCoinsReturn.
-    // WalletModel::TransactionCommitFailed is used only in WalletModel::sendCoins()
-    // all others are used only in WalletModel::prepareTransaction()
+    // All status values are used only in WalletModel::prepareTransaction()
     switch(sendCoinsReturn.status)
     {
     case WalletModel::InvalidAddress:
@@ -581,10 +580,6 @@ void SendCoinsDialog::processSendCoinsReturn(const WalletModel::SendCoinsReturn
         msgParams.first = tr("Transaction creation failed!");
         msgParams.second = CClientUIInterface::MSG_ERROR;
         break;
-    case WalletModel::TransactionCommitFailed:
-        msgParams.first = tr("The transaction was rejected with the following reason: %1").arg(sendCoinsReturn.reasonCommitFailed);
-        msgParams.second = CClientUIInterface::MSG_ERROR;
-        break;
     case WalletModel::AbsurdFee:
         msgParams.first = tr("A fee higher than %1 is considered an absurdly high fee.").arg(BitcoinUnits::formatWithUnit(model->getOptionsModel()->getDisplayUnit(), model->wallet().getDefaultMaxTxFee()));
         break;

src/qt/walletmodel.cpp

@@ -260,9 +260,7 @@ WalletModel::SendCoinsReturn WalletModel::sendCoins(WalletModelTransaction &tran
         }
 
         auto& newTx = transaction.getWtx();
-        std::string rejectReason;
-        if (!wallet().commitTransaction(newTx, {} /* mapValue */, std::move(vOrderForm), rejectReason))
-            return SendCoinsReturn(TransactionCommitFailed, QString::fromStdString(rejectReason));
+        wallet().commitTransaction(newTx, {} /* mapValue */, std::move(vOrderForm));
 
         CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
         ssTx << *newTx;

src/qt/walletmodel.h

@@ -138,7 +138,6 @@ public:
         AmountWithFeeExceedsBalance,
         DuplicateAddress,
         TransactionCreationFailed, // Error returned when wallet is still locked
-        TransactionCommitFailed,
         AbsurdFee,
         PaymentRequestExpired
     };