From e6c6f4e04bb103922e6b1129bd08600d5738c59c Mon Sep 17 00:00:00 2001
From: Charles Lowell <cowboyd@thefrontside.net>
Date: Sat, 22 May 2010 09:15:00 +0300
Subject: [PATCH] add rr_define_const()

---
 ext/v8/rr.cpp | 10 ++++++++++
 ext/v8/rr.h   |  1 +
 2 files changed, 11 insertions(+)

diff --git a/ext/v8/rr.cpp b/ext/v8/rr.cpp
index c76bb43..87675ed 100644
--- a/ext/v8/rr.cpp
+++ b/ext/v8/rr.cpp
@@ -17,6 +17,13 @@ VALUE rr_define_class(const char *name, VALUE superclass) {
   return klass;
 }
 
+VALUE rr_define_const(const char *name, VALUE value) {
+  VALUE V8 = rb_define_module("V8");
+  VALUE V8_C = rb_define_module_under(V8, "C");
+  rb_define_const(V8_C, name, value);
+  return value;
+}
+
 VALUE rr_str_to_perl_case(VALUE str) {
   VALUE V8 = rb_define_module("V8");
   VALUE to = rb_define_module_under(V8, "To");
@@ -30,6 +37,9 @@ VALUE rr_str_to_camel_case(VALUE str) {
 }
 
 VALUE rr_v82rb(Handle<Value> value) {
+  if (value.IsEmpty()) {
+    return rr_cV8_C_Empty;
+  }
   if (value.IsEmpty() || value->IsUndefined() || value->IsNull()) {
     return Qnil;
   }
diff --git a/ext/v8/rr.h b/ext/v8/rr.h
index cf4259f..c7ca3a2 100644
--- a/ext/v8/rr.h
+++ b/ext/v8/rr.h
@@ -8,6 +8,7 @@
 #define rr_define_singleton_method(object, name, impl, argc) rb_define_singleton_method(object, name, (VALUE(*)(...))impl, argc)
 
 VALUE rr_define_class(const char *name, VALUE superclass = rb_cObject);
+VALUE rr_define_const(const char *name, VALUE value);
 VALUE rr_str_to_perl_case(VALUE str);
 VALUE rr_str_to_camel_case(VALUE str);