Combined code into one

Trust/UI/FormAppearance.swift

@@ -8,21 +8,8 @@ struct AppFormAppearance {
     static func textArea(tag: String? = .none, callback: @escaping (TextAreaRow) -> Void) -> TextAreaRow {
         let textArea = TextAreaRow(tag) {
             $0.title = ""
-        }.onRowValidationChanged { cell, row in
+        }.onRowValidationChanged {
-            let rowIndex = row.indexPath!.row
+            AppFormAppearance.onRowValidationChanged(baseCell: $0.0, row: $0.1)
-            while row.section!.count > rowIndex + 1 && row.section?[rowIndex  + 1] is LabelRow {
-                row.section?.remove(at: rowIndex + 1)
-            }
-            if !row.isValid {
-                for (index, validationMsg) in row.validationErrors.map({ $0.msg }).enumerated() {
-                    let labelRow = LabelRow {
-                        $0.title = validationMsg
-                        $0.cell.height = { 20 }
-                        $0.cell.textLabel?.textColor = .red
-                    }
-                    row.section?.insert(labelRow, at: row.indexPath!.row + index + 1)
-                }
-            }
         }
         callback(textArea)
         return textArea
@@ -35,21 +22,8 @@ struct AppFormAppearance {
             if !row.isValid {
                 cell.textField?.textColor = .red
             }
-        }.onRowValidationChanged { cell, row in
+        }.onRowValidationChanged {
-            let rowIndex = row.indexPath!.row
+            AppFormAppearance.onRowValidationChanged(baseCell: $0.0, row: $0.1)
-            while row.section!.count > rowIndex + 1 && row.section?[rowIndex  + 1] is LabelRow {
-                row.section?.remove(at: rowIndex + 1)
-            }
-            if !row.isValid {
-                for (index, validationMsg) in row.validationErrors.map({ $0.msg }).enumerated() {
-                    let labelRow = LabelRow {
-                        $0.title = validationMsg
-                        $0.cell.height = { 20 }
-                        $0.cell.textLabel?.textColor = .red
-                    }
-                    row.section?.insert(labelRow, at: row.indexPath!.row + index + 1)
-                }
-            }
         }
         callback(textField)
         return textField
@@ -62,26 +36,30 @@ struct AppFormAppearance {
             if !row.isValid {
                 cell.textField?.textColor = .red
             }
-        }.onRowValidationChanged { cell, row in
+        }.onRowValidationChanged {
-            let rowIndex = row.indexPath!.row
+            AppFormAppearance.onRowValidationChanged(baseCell: $0.0, row: $0.1)
-            while row.section!.count > rowIndex + 1 && row.section?[rowIndex  + 1] is LabelRow {
-                row.section?.remove(at: rowIndex + 1)
-            }
-            if !row.isValid {
-                for (index, validationMsg) in row.validationErrors.map({ $0.msg }).enumerated() {
-                    let labelRow = LabelRow {
-                        $0.title = validationMsg
-                        $0.cell.height = { 20 }
-                        $0.cell.textLabel?.textColor = .red
-                    }
-                    row.section?.insert(labelRow, at: row.indexPath!.row + index + 1)
-                }
-            }
         }
         callback(textField)
         return textField
     }
 
+    static func onRowValidationChanged(baseCell: BaseCell, row: BaseRow) {
+        let rowIndex = row.indexPath!.row
+        while row.section!.count > rowIndex + 1 && row.section?[rowIndex  + 1] is LabelRow {
+            row.section?.remove(at: rowIndex + 1)
+        }
+        if !row.isValid {
+            for (index, validationMsg) in row.validationErrors.map({ $0.msg }).enumerated() {
+                let labelRow = LabelRow {
+                    $0.title = validationMsg
+                    $0.cell.height = { 20 }
+                    $0.cell.textLabel?.textColor = .red
+                }
+                row.section?.insert(labelRow, at: row.indexPath!.row + index + 1)
+            }
+        }
+    }
+
     static func button(_ title: String? = .none, callback: @escaping (ButtonRow) -> Void) -> ButtonRow {
         let button = ButtonRow(title)
         .cellUpdate { cell, _ in