v2: add load() stub

Signed-off-by: Alexander Bezzubov <[email protected]>

Author: bzz

src/main/native/org_bblfsh_client_v2_Node.h

@@ -137,16 +137,9 @@ JNIEXPORT jobject JNICALL Java_org_bblfsh_client_v2_libuast_Libuast_decode(
   return jCtxExt;
 }
 
-JNIEXPORT void JNICALL Java_org_bblfsh_client_v2_Context_dispose(JNIEnv *env,
-                                                                 jobject self) {
-  ContextExt *p = getHandle<ContextExt>(env, self, "nativeContext");
-  setHandle<ContextExt>(env, self, 0, "nativeContext");
-  delete p;
-}
-
 JNIEXPORT jobject JNICALL Java_org_bblfsh_client_v2_libuast_Libuast_filter(
     JNIEnv *, jobject, jobject, jstring) {
-  return NULL;  // TODO(bzz): implement
+  return nullptr;  // TODO(bzz): implement
 }
 
 // v2.Context()
@@ -156,6 +149,19 @@ JNIEXPORT jobject JNICALL Java_org_bblfsh_client_v2_Context_root(JNIEnv *env,
   return p->RootNode();
 }
 
+JNIEXPORT void JNICALL Java_org_bblfsh_client_v2_Context_dispose(JNIEnv *env,
+                                                                 jobject self) {
+  ContextExt *p = getHandle<ContextExt>(env, self, "nativeContext");
+  setHandle<ContextExt>(env, self, 0, "nativeContext");
+  delete p;
+}
+
+// v2.Node()
+JNIEXPORT jobject JNICALL Java_org_bblfsh_client_v2_Node_load(JNIEnv *,
+                                                              jobject) {
+  return nullptr;  // TODO(bzz): implement
+}
+
 JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void *reserved) {
   JNIEnv *env;
   if (vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION_1_8) != JNI_OK) {

src/main/native/org_bblfsh_client_v2_libuast_Libuast.cc

@@ -0,0 +1,11 @@
+package org.bblfsh.client.v2
+
+sealed abstract class JNode
+case class JString(s: String) extends JNode
+case class JDouble(num: Double) extends JNode
+case class JLong(num: Long) extends JNode
+case class JInt(num: BigInt) extends JNode
+case class JBool(value: Boolean) extends JNode
+case class JObject(obj: List[JField]) extends JNode
+case class JArray(arr: List[JNode]) extends JNode
+

src/main/scala/org/bblfsh/client/v2/JNode.scala

@@ -1,6 +1,5 @@
 package org.bblfsh.client.v2
 
 case class Node(ctx: Long, handle: Long) {
-  // TODO(bzz) make sure single string value or an array can also be loaded
-  @native def load(): Map[String, _]
+  @native def load(): JNode
 }

src/main/scala/org/bblfsh/client/v2/Node.scala

@@ -0,0 +1,5 @@
+package org.bblfsh.client
+
+package object v2 {
+    type JField = (String, JNode)
+}