Add CocoaPods support

JSONDecoderNS.podspec

@@ -0,0 +1,27 @@
+#
+# Be sure to run `pod lib lint JSONDecoderEx.podspec' to ensure this is a
+# valid spec before submitting.
+#
+# Any lines starting with a # are optional, but their use is encouraged
+# To learn more about a Podspec see https://guides.cocoapods.org/syntax/podspec.html
+#
+
+Pod::Spec.new do |s|
+  s.name             = 'JSONDecoderNS'
+  s.version          = '1.0.0'
+  s.summary          = 'A enhanced JSON decoder.'
+  s.homepage         = 'https://github.com/SAGESSE-CN/JSONDecoderEx'
+  s.author           = { 'SAGESSE' => 'gdmmyzc@163.com' }
+  s.license          = { :type => 'MIT', :file => 'LICENSE' }
+  s.source           = { :git => 'https://github.com/SAGESSE-CN/JSONDecoderEx.git', :tag => s.version.to_s }
+  s.source_files = 'Sources/**/*'
+
+  s.swift_versions = '5.0'
+
+  s.ios.deployment_target = '9.0'
+  s.osx.deployment_target = '10.11'
+
+#s.test_spec 'Tests' do |ts|
+#  ts.source_files = 'Tests/**/*'
+#end
+end

Tests/JSONDecoderTests.swift

@@ -319,6 +319,34 @@ class JSONDecoderTests: XCTestCase {
         XCTAssertEqual(try def.decode(S.self, from: ["r":[:]]).r.i, 0)
     }
 
+    func testKeyPath() {
+        struct R: Codable {
+            let name: String
+            let name2: String
+            init(from decoder: Decoder) throws {
+                let container = try decoder.container(keyedBy: JSONDecoderEx.JSONKey.self)
+                let p = try container.nestedContainer(keyedBy: JSONDecoderEx.JSONKey.self, forKey: "p")
+                name = try p.decode(String.self, forKey: "name") // p.name
+                let pp = try p.nestedContainer(keyedBy: JSONDecoderEx.JSONKey.self, forKey: "pp")
+                name2 = try pp.decode(String.self, forKey: "name") // p.pp.name
+            }
+        }
+        XCTAssertEqual(try def.decode(R.self, from: "{\"p\":{\"name\":\"swift\"}}".data(using: .utf8)!).name, "swift")
+        XCTAssertEqual(try def.decode(R.self, from: "{\"p\":{\"name\":\"swift\",\"pp\":{\"name\":5.2}}}".data(using: .utf8)!).name2, "5.2")
+        XCTAssertEqual(try def.decode(R.self, from: "{}".data(using: .utf8)!).name, "")
+        XCTAssertEqual(try def.decode(R.self, from: "{\"p\":null}".data(using: .utf8)!).name, "")
+        XCTAssertThrowsError(try def.decode(R.self, from:  "{\"p\":[]}".data(using: .utf8)!))
+        XCTAssertEqual(try def.decode(R.self, from: "{\"p\":{}}".data(using: .utf8)!).name, "")
+        XCTAssertThrowsError(try def.decode(R.self, from: "{\"p\":\"123\"}".data(using: .utf8)!))
+    }
+
+    func testDic() {
+        struct R: Codable {
+            let name: String
+        }
+        XCTAssertEqual(try def.decode(R.self, from: "{\"p\":\"123\"}".data(using: .utf8)!).name, "")
+    }
+
     func testKeyDecodingStrategy() {
         struct R: Decodable {
             let k: String
@@ -391,7 +419,7 @@ class JSONDecoderTests: XCTestCase {
         XCTAssertEqual(try def.decode(Date.self, from: 1000), Date(timeIntervalSince1970: 1000))
         def.dateDecodingStrategy = .millisecondsSince1970
         XCTAssertEqual(try def.decode(Date.self, from: 1000), Date(timeIntervalSince1970: 1))
-        if #available(iOS 10.0, *) {
+        if #available(macOS 10.12, iOS 10.0, watchOS 8.0, *) {
             def.dateDecodingStrategy = .iso8601
             XCTAssertThrowsError(try def.decode(Date.self, from: 1000))
             XCTAssertThrowsError(try def.decode(Date.self, from: "1000"))
@@ -570,6 +598,5 @@ class JSONDecoderTests: XCTestCase {
             //print(error)
         }
     }
-
 }