Typed result

Author: vince-hz

NTLBridgeDemo/NTLBridgeDemo/ContentView.swift

@@ -69,6 +69,16 @@ struct ContentView: View {
             Button("Call js sync") {
                 model.webView.callHandler("syn.tag") { process($0) }
             }
+            Button("Call js typed sync") {
+                model.webView.callTypedHandler("syn.tag", expecting: String.self) { result in
+                    switch result {
+                    case .success(let success):
+                        model.jsResult = "Typed result: \(success)"
+                    case .failure(let failure):
+                        model.jsResult = "Typed error: \(failure.localizedDescription)"
+                    }
+                }
+            }
             Button("Call js sync multiparam") {
                 model.webView.callHandler("syn.multi", arguments: [["1": 111]])  { process($0) }
             }

Sources/NTLBridge/NTLWebView.swift

@@ -319,6 +319,7 @@ open class NTLWebView: WKWebView {
     public func callTypedHandler<T: Encodable, U: Decodable>(
         _ method: String,
         arguments: [T],
+        expecting type: U.Type,
         completion: @escaping (Result<U, Error>) -> Void
     ) {
         callHandler(method, arguments: arguments) { result in
@@ -343,9 +344,10 @@ open class NTLWebView: WKWebView {
     ///   - discussion: 便捷方法，不需要传入参数数组
     public func callTypedHandler<U: Decodable>(
         _ method: String,
+        expecting type: U.Type,
         completion: @escaping (Result<U, Error>) -> Void
     ) {
-        callTypedHandler(method, arguments: [String](), completion: completion)
+        callTypedHandler(method, arguments: [String](), expecting: type, completion: completion)
     }
 
     // MARK: - Internal Call Bridge Method

Tests/NTLBridgeTests/NTLWebViewTests.swift

@@ -367,7 +367,7 @@ struct NTLWebViewTests {
             var result: String?
             var error: Error?
 
-            webView.callTypedHandler("testStringMethod") { (response: Result<String, Error>) in
+            webView.callTypedHandler("testStringMethod", expecting: String.self) { (response: Result<String, Error>) in
                 switch response {
                 case .success(let value):
                     result = value
@@ -403,7 +403,7 @@ struct NTLWebViewTests {
             var result: TestUser?
             var error: Error?
 
-            webView.callTypedHandler("testUserMethod") { (response: Result<TestUser, Error>) in
+            webView.callTypedHandler("testUserMethod", expecting: TestUser.self) { (response: Result<TestUser, Error>) in
                 switch response {
                 case .success(let value):
                     result = value
@@ -443,7 +443,7 @@ struct NTLWebViewTests {
             var result: [TestItem]?
             var error: Error?
 
-            webView.callTypedHandler("testArrayMethod") { (response: Result<[TestItem], Error>) in
+            webView.callTypedHandler("testArrayMethod", expecting: [TestItem].self) { (response: Result<[TestItem], Error>) in
                 switch response {
                 case .success(let value):
                     result = value
@@ -489,7 +489,7 @@ struct NTLWebViewTests {
             var result: StrictUser?
             var error: Error?
 
-            webView.callTypedHandler("testIncompleteUserMethod") { (response: Result<StrictUser, Error>) in
+            webView.callTypedHandler("testIncompleteUserMethod", expecting: StrictUser.self) { (response: Result<StrictUser, Error>) in
                 switch response {
                 case .success(let value):
                     result = value