Added kotlinx-serialization support.

build.gradle

@@ -1,11 +1,13 @@
 buildscript {
     repositories {
         jcenter()
+        maven { url "https://kotlin.bintray.com/kotlinx" }
         maven { url 'https://plugins.gradle.org/m2/' }
         mavenCentral()
     }
     dependencies {
         classpath group: 'org.jetbrains.kotlin', name: 'kotlin-gradle-plugin', version: kotlinVersion
+        classpath group: 'org.jetbrains.kotlinx', name: 'kotlinx-gradle-serialization-plugin', version: kotlinSerializationVersion
         classpath group: 'com.moowork.gradle', name: 'gradle-node-plugin', version: nodePluginVersion
     }
 }
@@ -16,6 +18,7 @@ subprojects {
 
     repositories {
         mavenLocal()
+        maven { url "https://kotlin.bintray.com/kotlinx" }
         jcenter()
     }
 }

client/build.gradle

@@ -1,11 +1,13 @@
 apply plugin: 'kotlin-platform-js'
 apply plugin: 'kotlin-dce-js'
+apply plugin: 'kotlinx-serialization'
 apply plugin: 'com.moowork.node'
 
 dependencies {
     expectedBy project(':common')
 
     compile group: 'org.jetbrains.kotlin', name: 'kotlin-stdlib-js', version: kotlinVersion
+    compile group: 'org.jetbrains.kotlinx', name: 'kotlinx-serialization-runtime-js', version: kotlinSerializationVersion
 
     testCompile group: 'org.jetbrains.kotlin', name: 'kotlin-test-js', version: kotlinVersion
 }

client/src/test/kotlin/com/github/czyzby/example/client/ClientTest.kt

@@ -1,6 +1,10 @@
+@file:Suppress("unused")
+
 package com.github.czyzby.example.client
 
+import com.github.czyzby.example.common.CommonData
 import com.github.czyzby.example.common.getAnswer
+import kotlinx.serialization.protobuf.ProtoBuf
 import kotlin.test.Test
 import kotlin.test.asserter
 
@@ -11,4 +15,19 @@ class ServerTest {
     fun the_answer_should_be_correct() {
         asserter.assertEquals("The answer must be 42.", 42, getAnswer())
     }
+
+    // kotlinx-serialization usage example:
+
+    @Test
+    fun should_correctly_serialize_CommonData_in_JS() {
+        //  Given:
+        val data = CommonData(id = 42, name = "John")
+
+        // When:
+        val serialized = ProtoBuf.dump(data)
+
+        // Then:
+        val deserialized = ProtoBuf.load<CommonData>(serialized)
+        asserter.assertEquals("Deserialized object should be equal to the original", data, deserialized)
+    }
 }

common/build.gradle

@@ -1,7 +1,9 @@
 apply plugin: 'kotlin-platform-common'
+apply plugin: 'kotlinx-serialization'
 
 dependencies {
     compile group: 'org.jetbrains.kotlin', name: 'kotlin-stdlib-common', version: kotlinVersion
+    compileOnly group: 'org.jetbrains.kotlinx', name: 'kotlinx-serialization-runtime', version: kotlinSerializationVersion
     testCompile group: 'org.jetbrains.kotlin', name: 'kotlin-test-common', version: kotlinVersion
     testCompile group: 'org.jetbrains.kotlin', name: 'kotlin-test-annotations-common', version: kotlinVersion
 }

common/src/main/kotlin/com/github/czyzby/example/common/Common.kt

@@ -1,8 +1,20 @@
 package com.github.czyzby.example.common
 
+import kotlinx.serialization.SerialId
+import kotlinx.serialization.Serializable
+
 /**
  * Must be implemented by all modules and return the one and only answer Answer to the Ultimate Question of Life,
  * the Universe, and Everything. This is not the best example of a multi-platform usage, since we expect it to
  * return the same number on all platforms, but you get the idea.
  */
 expect fun getAnswer(): Int
+
+
+// kotlinx-serialization usage example:
+
+@Serializable
+data class CommonData(
+        @SerialId(1) val id: Int,
+        @SerialId(2) val name: String
+)

gradle.properties

@@ -1,5 +1,5 @@
 javaVersion=1.8
 kotlinVersion=1.2.21
+kotlinSerializationVersion=0.4.1
 junitVersion=4.12
 nodePluginVersion=1.2.0
-

server/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'kotlin-platform-jvm'
+apply plugin: 'kotlinx-serialization'
 apply plugin: 'application'
 
 mainClassName = 'com.github.czyzby.example.server.Main'
@@ -15,6 +16,7 @@ dependencies {
     expectedBy project(':common')
 
     compile group: 'org.jetbrains.kotlin', name: 'kotlin-stdlib-jdk8', version: kotlinVersion
+    compile group: 'org.jetbrains.kotlinx', name: 'kotlinx-serialization-runtime', version: kotlinSerializationVersion
 
     testCompile group: 'org.jetbrains.kotlin', name: 'kotlin-test', version: kotlinVersion
     testCompile group: 'org.jetbrains.kotlin', name: 'kotlin-test-junit', version: kotlinVersion

server/src/test/kotlin/com/github/czyzby/example/server/ServerTest.kt

@@ -1,6 +1,8 @@
 package com.github.czyzby.example.server
 
+import com.github.czyzby.example.common.CommonData
 import com.github.czyzby.example.common.getAnswer
+import kotlinx.serialization.protobuf.ProtoBuf
 import org.junit.Assert.assertEquals
 import kotlin.test.Test
 
@@ -12,4 +14,19 @@ class ServerTest {
     fun `just to be sure, the answer should be correct`() {
         assertEquals(42, getAnswer())
     }
+
+    // kotlinx-serialization usage example:
+
+    @Test
+    fun `should correctly serialize CommonData on JVM`() {
+        //  Given:
+        val data = CommonData(id = 42, name = "John")
+
+        // When:
+        val serialized = ProtoBuf.dump(data)
+
+        // Then:
+        val deserialized = ProtoBuf.load<CommonData>(serialized)
+        assertEquals(data, deserialized)
+    }
 }