swiftlint

.swiftlint.yml

@@ -31,9 +31,14 @@ custom_rules:
     message: "Source code should not contains placeholders"
     severity: warning
 
-variable_name:
+identifier_name:
+  min_length:
+    warning: 1
   excluded:
     - id
+nesting:
+  type_level:
+    warning: 3
 
 line_length:
   - 100 # warning

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:4.1
+// swift-tools-version:4.0
 
 import PackageDescription
 

Sources/SquirrelJSON/JSON+ExpressibleBy.swift

@@ -6,7 +6,7 @@
 //
 
 // MARK: String
-extension JSON : ExpressibleByStringLiteral {
+extension JSON: ExpressibleByStringLiteral {
 
     /// Construct from string literal
     ///
@@ -30,7 +30,6 @@ extension JSON : ExpressibleByStringLiteral {
     }
 }
 
-
 // MARK: - Dictionary
 extension JSON: ExpressibleByDictionaryLiteral {
 

Sources/SquirrelJSON/JSON.swift

@@ -391,7 +391,6 @@ extension JSON {
     }
 }
 
-
 // MARK: - Codable
 public extension JSON {
     /// Constructs from encodable object
@@ -427,7 +426,6 @@ public extension JSON {
         let encoder = JSONEncoder()
         return try? encoder.encode(self)
     }
-
 }
 
 // MARK: - Additive functions
@@ -479,7 +477,11 @@ public extension JSON {
     var serialize: Any? {
         switch type {
         case .array(let array):
-            return array.compactMap({ $0.serialize })
+            #if swift(>=4.1)
+            return array.compactMap { $0.serialize }
+            #else
+            return array.flatMap { $0.serialize }
+            #endif
         case .bool(let bool):
             return bool
         case .date(let date):

Sources/SquirrelJSON/JSONCoding.swift

@@ -93,6 +93,8 @@ public struct JSONCoding {
         }
     }
 
+    // swiftlint:disable function_body_length
+
     /// Encode object to json representation
     ///
     /// - Parameter object: object to encode
@@ -130,7 +132,11 @@ public struct JSONCoding {
         case let v as Date:
             return v.timeIntervalSince1970.description
         case let arr as [Any]:
+            #if swift(>=4.1)
             return arr.compactMap { encode(object: $0) }
+            #else
+            return arr.flatMap { encode(object: $0) }
+            #endif
         case let dic as [String: Any]:
             return dic.mapValues { return encode(object: $0) }
         default: