Refactor conditional statement

Author: kitasuke

Pod/Classes/MenuItemView.swift

@@ -38,14 +38,14 @@ open class MenuItemView: UIView {
                 // adjust label width if needed
                 let labelSize = calculateLabelSize(titleLabel, maxWidth: maxWindowSize)
                 widthConstraint.constant = labelSize.width
-            case .multilineText(let title, let description):
+            case let .multilineText(title, description):
                 updateLabel(titleLabel, text: title)
                 updateLabel(descriptionLabel, text: description)
 
                 // adjust label width if needed
                 widthConstraint.constant = calculateLabelSize(titleLabel, maxWidth: maxWindowSize).width
                 descriptionWidthConstraint.constant = calculateLabelSize(descriptionLabel, maxWidth: maxWindowSize).width
-            case .image(let image, let selectedImage):
+            case let .image(image, selectedImage):
                 menuImageView.image = selected ? (selectedImage ?? image) : image
             case .custom: break
             }
@@ -83,7 +83,7 @@ open class MenuItemView: UIView {
                 self.setupTitleLabel(title)
                 self.layoutLabel()
             })
-        case .multilineText(let title, let description):
+        case let .multilineText(title, description):
             commonInit({
                 self.setupMultilineLabel(title, description: description)
                 self.layoutMultiLineLabel()
@@ -295,11 +295,11 @@ extension MenuItemView: LabelSizeCalculatable {
 
         let itemWidth: CGFloat
         switch menuOptions.displayMode {
-        case let .standard(widthMode, _, _):
+        case .standard(let widthMode, _, _):
             itemWidth = labelWidth(widthMode, estimatedSize: estimatedLabelSize(label))
         case .segmentedControl:
             itemWidth = maxWidth / CGFloat(menuOptions.itemsOptions.count)
-        case let .infinite(widthMode, _):
+        case .infinite(let widthMode, _):
             itemWidth = labelWidth(widthMode, estimatedSize: estimatedLabelSize(label))
         }
 

Pod/Classes/MenuView.swift

@@ -45,7 +45,7 @@ open class MenuView: UIScrollView {
     }
     fileprivate var contentOffsetX: CGFloat {
         switch menuOptions.displayMode {
-        case let .standard(_, centerItem, _) where centerItem:
+        case .standard(_, let centerItem, _) where centerItem:
             return centerOfScreenWidth
         case .segmentedControl:
             return contentOffset.x
@@ -267,15 +267,15 @@ open class MenuView: UIScrollView {
     }
 
     fileprivate func animateUnderlineViewIfNeeded() {
-        guard case let .underline(_, _, horizontalPadding, _) = menuOptions.focusMode else { return }
+        guard case .underline(_, _, let horizontalPadding, _) = menuOptions.focusMode else { return }
 
         let targetFrame = menuItemViews[currentPage].frame
         underlineView.frame.origin.x = targetFrame.minX + horizontalPadding
         underlineView.frame.size.width = targetFrame.width - horizontalPadding * 2
     }
 
     fileprivate func animateRoundRectViewIfNeeded() {
-        guard case let .roundRect(_, horizontalPadding, _, _) = menuOptions.focusMode else { return }
+        guard case .roundRect(_, let horizontalPadding, _, _) = menuOptions.focusMode else { return }
 
         let targetFrame = menuItemViews[currentPage].frame
         roundRectView.frame.origin.x = targetFrame.minX + horizontalPadding
@@ -295,7 +295,7 @@ open class MenuView: UIScrollView {
 
     fileprivate func adjustmentContentInsetIfNeeded() {
         switch menuOptions.displayMode {
-        case let .standard(_, centerItem, _) where centerItem: break
+        case .standard(_, let centerItem, _) where centerItem: break
         default: return
         }
 

Pod/Classes/PagingMenuController.swift

@@ -393,7 +393,8 @@ extension PagingMenuController: GestureHandler {
     internal func handleTapGesture(_ recognizer: UITapGestureRecognizer) {
         guard let menuItemView = recognizer.view as? MenuItemView,
             let menuView = menuView,
-            let page = menuView.menuItemViews.index(of: menuItemView) , page != menuView.currentPage,
+            let page = menuView.menuItemViews.index(of: menuItemView),
+            page != menuView.currentPage,
             let menuOptions = menuOptions else { return }
 
         let newPage: Int