From d51522ed3a0aeba08dd4ab0db70a4716c7548524 Mon Sep 17 00:00:00 2001
From: Tae Won Ha <h@taewon.de>
Date: Tue, 8 Aug 2017 09:53:30 +0200
Subject: [PATCH] Refactor slightly

---
 SwiftNeoVim/NeoVimView+Dragging.swift | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/SwiftNeoVim/NeoVimView+Dragging.swift b/SwiftNeoVim/NeoVimView+Dragging.swift
index a2f697f0..6c15d7fb 100644
--- a/SwiftNeoVim/NeoVimView+Dragging.swift
+++ b/SwiftNeoVim/NeoVimView+Dragging.swift
@@ -16,22 +16,20 @@ extension NeoVimView {
   }
 
   override public func performDragOperation(_ sender: NSDraggingInfo) -> Bool {
-    if !isFile(sender: sender) {
-      return false;
+    guard isFile(sender: sender) else {
+      return false
     }
-    let paths = sender
-      .draggingPasteboard()
-      .propertyList(forType: NSFilenamesPboardType)
-      as? [String]
-    let urls = paths?
-      .map { URL(fileURLWithPath: $0) }
-      ?? []
-    self.open(urls: urls)
-    return true;
+
+    guard let paths = sender.draggingPasteboard().propertyList(forType: NSFilenamesPboardType) as? [String] else {
+      return false
+    }
+
+    self.open(urls: paths.map { URL(fileURLWithPath: $0) })
+
+    return true
   }
-
 }
 
-fileprivate func isFile(sender: NSDraggingInfo?) -> Bool {
-  return (sender?.draggingPasteboard().types?.contains(String(kUTTypeFileURL))) ?? false
+fileprivate func isFile(sender: NSDraggingInfo) -> Bool {
+  return (sender.draggingPasteboard().types?.contains(String(kUTTypeFileURL))) ?? false
 }