Merge pull request #1214 from NativeScript/vmutafov/java-8-interfaces-support

Add static and default interface methods support

Author: vtrifonov

.gitignore

@@ -19,3 +19,4 @@ bin/
 .settings
 
 .classpath
+android-runtime.iml

test-app/app/build.gradle

@@ -195,6 +195,11 @@ android {
         }
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
     sourceSets.main {
         jniLibs.srcDir "$projectDir/libs/jni"
     }

test-app/app/src/main/assets/app/mainpage.js

@@ -20,6 +20,8 @@ shared.runRequireTests();
 shared.runWeakRefTests();
 shared.runRuntimeTests();
 shared.runWorkerTests();
+require("./tests/testInterfaceDefaultMethods");
+require("./tests/testInterfaceStaticMethods");
 require("./tests/testMetadata");
 require("./tests/testAsserts");
 require("./tests/testWeakRef");

test-app/app/src/main/assets/app/tests/testInterfaceDefaultMethods.js

@@ -0,0 +1,17 @@
+describe("Tests Java 8 default methods support", function () {
+
+    it("Test default method overrides in extending classes", function () {
+        var firstGen = new com.tns.tests.interfaces.defaultmethods.impl.FirstGeneration();
+        expect(firstGen.grow()).toBe("first generation grow");
+
+        var secondGeneration = new com.tns.tests.interfaces.defaultmethods.impl.SecondGeneration();
+        expect(secondGeneration.grow()).toBe("second generation grow");
+    })
+
+    it("Test default method overrides in interfaces chain", function () {
+        var producer = new com.tns.tests.interfaces.defaultmethods.impl.CarProducerImpl();
+        expect(producer.produce()).toBe("default produce in CarProducer");
+    })
+
+
+})

test-app/app/src/main/assets/app/tests/testInterfaceStaticMethods.js

@@ -0,0 +1,9 @@
+describe("Tests Java 8 static methods support", function () {
+
+    it("Test static method in interface", function () {
+        var producer = com.tns.tests.interfaces.staticmethods.StaticProducer;
+        expect(producer.staticProduce()).toBe("static produce");
+    })
+
+
+})

test-app/app/src/main/java/com/tns/tests/interfaces/defaultmethods/contract/CarProducer.java

@@ -0,0 +1,10 @@
+package com.tns.tests.interfaces.defaultmethods.contract;
+
+public interface CarProducer extends Producer{
+
+    @Override
+    default String produce(){
+        return "default produce in CarProducer";
+    }
+}
+

test-app/app/src/main/java/com/tns/tests/interfaces/defaultmethods/contract/Generation.java

@@ -0,0 +1,7 @@
+package com.tns.tests.interfaces.defaultmethods.contract;
+
+public interface Generation{
+    default String grow(){
+        return "default grow";
+    }
+}

test-app/app/src/main/java/com/tns/tests/interfaces/defaultmethods/contract/Producer.java

@@ -0,0 +1,9 @@
+package com.tns.tests.interfaces.defaultmethods.contract;
+
+public interface Producer{
+
+    default String produce(){
+        return "default produce in Producer";
+    }
+}
+

test-app/app/src/main/java/com/tns/tests/interfaces/defaultmethods/impl/CarProducerImpl.java

@@ -0,0 +1,7 @@
+package com.tns.tests.interfaces.defaultmethods.impl;
+
+import com.tns.tests.interfaces.defaultmethods.contract.CarProducer;
+
+public class CarProducerImpl implements CarProducer {
+    
+}

test-app/app/src/main/java/com/tns/tests/interfaces/defaultmethods/impl/FirstGeneration.java

@@ -0,0 +1,12 @@
+package com.tns.tests.interfaces.defaultmethods.impl;
+
+import com.tns.tests.interfaces.defaultmethods.contract.Generation;
+
+public class FirstGeneration implements Generation {
+    
+    @Override
+    public String grow(){
+        return "first generation grow";
+    }
+    
+}