Invoke instance method supported

test/org/jetbrains/eval4j/test/TestData.java

@@ -98,7 +98,7 @@ class TestData {
         }
     }
 
-    static int testSimpleFinally() {
+    static int simpleFinally() {
         int i = 5;
         try {
             return i;
@@ -108,7 +108,7 @@ class TestData {
         }
     }
 
-    static int testSimpleFinallyWithReturn() {
+    static int simpleFinallyWithReturn() {
         int i = 5;
         try {
             return i;
@@ -118,7 +118,7 @@ class TestData {
         }
     }
 
-    static int testSimpleFinallyWithContinueInLoop() {
+    static int simpleFinallyWithContinueInLoop() {
         int i = 5;
         while (true) {
             try {
@@ -131,7 +131,7 @@ class TestData {
         }
     }
 
-    static int testSimpleFinallyWithBreakInLoop() {
+    static int simpleFinallyWithBreakInLoop() {
         int i = 5;
         while (true) {
             try {
@@ -144,21 +144,21 @@ class TestData {
         return i;
     }
 
-    static Object testCall() {
+    static Object call() {
         return Integer.valueOf(1);
     }
 
-    static Object testCallWithObject() {
+    static Object callWithObject() {
         return String.valueOf("str");
     }
 
-    static Object testGetStaticField() {
+    static Object getStaticField() {
         return String.CASE_INSENSITIVE_ORDER;
     }
 
     static int FIELD = 0;
 
-    static int testPutStaticField() {
+    static int putStaticField() {
         FIELD = 5;
         int f1 = FIELD;
         FIELD = 6;
@@ -169,16 +169,20 @@ class TestData {
     static class C {
         int y = 15;
 
+        int getY() {
+            return y;
+        }
+
         static C newC() {
             return new C();
         }
     }
 
-    static int testGetInstanceField() {
+    static int getInstanceField() {
         return C.newC().y;
     }
 
-    static int testPutInstanceField() {
+    static int putInstanceField() {
         C c = C.newC();
         c.y = 5;
         int f1 = c.y;
@@ -187,4 +191,8 @@ class TestData {
         return f1 + f2;
     }
 
+    static int instanceMethod() {
+        return C.newC().getY();
+    }
+
 }

test/org/jetbrains/eval4j/test/main.kt

@@ -185,7 +185,12 @@ object REFLECTION_EVAL : Eval {
     }
 
     override fun invokeMethod(instance: Value, methodDesc: MethodDescription, arguments: List<Value>, invokespecial: Boolean): Value {
-        throw UnsupportedOperationException()
+        // TODO: INVOKESPECIAL
+        val obj = instance.obj
+        val method = obj.javaClass.findMethod(methodDesc)
+        assertNotNull("Method not found: $methodDesc", method)
+        val result = method!!.invoke(obj, *arguments.map { v -> v.obj }.copyToArray())
+        return objectToValue(result, methodDesc.returnType)
     }
 }