--- a/src/parallel_execution/rb_tree.c	Tue Jan 26 07:46:26 2016 +0900
+++ b/src/parallel_execution/rb_tree.c	Tue Jan 26 08:50:30 2016 +0900
@@ -303,20 +303,20 @@
 }
     
 
-/* /\* __code get(struct Context* context, struct Tree* tree) { *\/ */
-/* /\*     if (tree->root) { *\/ */
-/* /\*         tree->current = tree->root; *\/ */
+__code get(struct Context* context, struct Tree* tree, struct Traverse* traverse) {
+    if (tree->root) {
+        traverse->current = tree->root;
 
-/* /\*         goto meta(context, Search); *\/ */
-/* /\*     } *\/ */
+        goto meta(context, Search);
+    }
 
-/* /\*     stack_pop(context->code_stack, &context->next); *\/ */
-/* /\*     goto meta(context, context->next); *\/ */
-/* /\* } *\/ */
+    stack_pop(context->code_stack, &context->next);
+    goto meta(context, context->next);
+}
 
-/* /\* __code get_stub(struct Context* context) { *\/ */
-/* /\*     goto get(context, &context->data[Tree]->tree); *\/ */
-/* /\* } *\/ */
+__code get_stub(struct Context* context) {
+    goto get(context, &context->data[Tree]->tree, &context->data[Traverse]->traverse);
+}
 
 __code search(struct Context* context, struct Traverse* traverse, struct Node* node) {
     compare(context, traverse, traverse->current->key, node->key);