Return false for isFile for empty strings

As of Swift 5, corelibs-foundation crashes if you pass an empty string to `fileExists` https://github.com/apple/swift-corelibs-foundation/blob/cae5eaca63cd57f64a93b4d5de87a4ffc04466d5/Foundation/FileManager.swift#L2033
realm · Apr 3, 2019 · dd39c43 · dd39c43
1 parent 1d7b37b
commit dd39c43
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Source/SwiftLintFramework/Extensions/String+SwiftLint.swift b/Source/SwiftLintFramework/Extensions/String+SwiftLint.swift
@@ -80,6 +80,9 @@ extension String {
     }
 
     internal var isFile: Bool {
+        if self.isEmpty {
+            return false
+        }
         var isDirectoryObjC: ObjCBool = false
         if FileManager.default.fileExists(atPath: self, isDirectory: &isDirectoryObjC) {
             return !isDirectoryObjC.boolValue