Exit if first or last doesn't exist

kitasuke · kitasuke · commit d5e60753bf8d · 2016-10-09T21:58:12.000-07:00
diff --git a/Pod/Classes/MenuView.swift b/Pod/Classes/MenuView.swift
@@ -313,8 +313,8 @@ open class MenuView: UIScrollView {
         default: return
         }
         
-        let firstMenuView = menuItemViews.first!
-        let lastMenuView = menuItemViews.last!
+        guard let firstMenuView = menuItemViews.first,
+            let lastMenuView = menuItemViews.last else { return }
         
         var inset = contentInset
         let halfWidth = frame.width / 2

Original file line number	Diff line number	Diff line change
`@@ -313,8 +313,8 @@ open class MenuView: UIScrollView {`
`313`	`313`	`default: return`
`314`	`314`	`}`
`315`	`315`
`316`		`- let firstMenuView = menuItemViews.first!`
`317`		`- let lastMenuView = menuItemViews.last!`
	`316`	`+ guard let firstMenuView = menuItemViews.first,`
	`317`	`+ let lastMenuView = menuItemViews.last else { return }`
`318`	`318`
`319`	`319`	`var inset = contentInset`
`320`	`320`	`let halfWidth = frame.width / 2`