qt, refactor: Use enum type as switch argument in TransactionTableModel

Author: hebasto

src/qt/transactiontablemodel.cpp

@@ -526,27 +526,30 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
         return QVariant();
     TransactionRecord *rec = static_cast<TransactionRecord*>(index.internalPointer());
 
-    switch(role)
-    {
+    const auto column = static_cast<ColumnIndex>(index.column());
+    switch (role) {
     case RawDecorationRole:
-        switch(index.column())
-        {
+        switch (column) {
         case Status:
             return txStatusDecoration(rec);
         case Watchonly:
             return txWatchonlyDecoration(rec);
+        case Date: return {};
+        case Type: return {};
         case ToAddress:
             return txAddressDecoration(rec);
-        }
-        break;
+        case Amount: return {};
+        } // no default case, so the compiler can warn about missing cases
+        assert(false);
     case Qt::DecorationRole:
     {
         QIcon icon = qvariant_cast<QIcon>(index.data(RawDecorationRole));
         return platformStyle->TextColorIcon(icon);
     }
     case Qt::DisplayRole:
-        switch(index.column())
-        {
+        switch (column) {
+        case Status: return {};
+        case Watchonly: return {};
         case Date:
             return formatTxDate(rec);
         case Type:
@@ -555,12 +558,11 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
             return formatTxToAddress(rec, false);
         case Amount:
             return formatTxAmount(rec, true, BitcoinUnits::SeparatorStyle::ALWAYS);
-        }
-        break;
+        } // no default case, so the compiler can warn about missing cases
+        assert(false);
     case Qt::EditRole:
         // Edit role is used for sorting, so return the unformatted values
-        switch(index.column())
-        {
+        switch (column) {
         case Status:
             return QString::fromStdString(rec->status.sortKey);
         case Date:
@@ -573,8 +575,8 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
             return formatTxToAddress(rec, true);
         case Amount:
             return qint64(rec->credit + rec->debit);
-        }
-        break;
+        } // no default case, so the compiler can warn about missing cases
+        assert(false);
     case Qt::ToolTipRole:
         return formatTooltip(rec);
     case Qt::TextAlignmentRole: