Update to swift 5

Author: e-marchand

.swift-version

@@ -1 +1 @@
-4.2
+5.0

Prephirences.podspec

@@ -2,7 +2,7 @@ Pod::Spec.new do |s|
 
   # ―――  Spec Metadata  ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― #
   s.name         = "Prephirences"
-  s.version      = "4.2.1"
+  s.version      = "5.0.0"
   s.summary      = "A Swift library to manage preferences"
   s.description  = <<-DESC
                    Prephirences is a Swift library that provides useful protocols and methods to manage preferences.

Prephirences.xcodeproj/project.pbxproj

@@ -599,9 +599,11 @@
 					};
 					C42114FD1AE7D8E200A09DD9 = {
 						CreatedOnToolsVersion = 6.3;
+						LastSwiftMigration = 1020;
 					};
 					C42DB81020E26123004380CC = {
 						CreatedOnToolsVersion = 9.4.1;
+						LastSwiftMigration = 1020;
 						ProvisioningStyle = Automatic;
 					};
 					C4FF650A1B6B7C7300BFE4F4 = {
@@ -875,7 +877,7 @@
 				PRODUCT_NAME = Prephirences;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 3.0;
 			};
@@ -897,7 +899,7 @@
 				PRODUCT_NAME = Prephirences;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 4;
 				VALIDATE_PRODUCT = YES;
 				WATCHOS_DEPLOYMENT_TARGET = 3.0;
@@ -921,7 +923,7 @@
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.2;
 			};
@@ -943,7 +945,7 @@
 				PRODUCT_NAME = Prephirences;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.2;
 				VALIDATE_PRODUCT = YES;
@@ -1003,7 +1005,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -1054,7 +1056,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -1082,7 +1084,7 @@
 				PRODUCT_NAME = Prephirences;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -1104,7 +1106,7 @@
 				PRODUCT_NAME = Prephirences;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -1130,7 +1132,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = tv.phimage.Prephirences;
 				PRODUCT_NAME = Prephirences;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1150,7 +1152,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = tv.phimage.Prephirences;
 				PRODUCT_NAME = Prephirences;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -1173,7 +1175,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = org.phimage.PrephirencesMacTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1195,7 +1197,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_BUNDLE_IDENTIFIER = org.phimage.PrephirencesMacTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -1209,7 +1211,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = tv.phimage.PrephirencesiOSTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1222,7 +1224,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = tv.phimage.PrephirencesiOSTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;

Sources/PatternPreferences.swift

@@ -605,7 +605,7 @@ extension Collection {
     }
 
     func find(_ predicate: (Self.Iterator.Element) throws -> Bool) rethrows -> Self.Iterator.Element? {
-        return try index(where: predicate).map({ self[$0] })
+        return try firstIndex(where: predicate).map({ self[$0] })
     }
 
 }