From a20ade811ccf143c213260bd378fc31212ee1aab Mon Sep 17 00:00:00 2001
From: Charles Lowell <cowboyd@thefrontside.net>
Date: Thu, 14 Jun 2012 03:52:32 -0500
Subject: [PATCH] expose V8 version string.

---
 ext/v8/rr.h              | 1 +
 ext/v8/v8.cc             | 6 +++++-
 spec/c/constants_spec.rb | 4 ++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/ext/v8/rr.h b/ext/v8/rr.h
index 008fa87..849080e 100644
--- a/ext/v8/rr.h
+++ b/ext/v8/rr.h
@@ -790,6 +790,7 @@ public:
   static VALUE IdleNotification(int argc, VALUE argv[], VALUE self);
   static VALUE SetCaptureStackTraceForUncaughtExceptions(int argc, VALUE argv[], VALUE self);
   static VALUE GetHeapStatistics(VALUE self, VALUE statistics_ptr);
+  static VALUE GetVersion(VALUE self);
 };
 
 class ClassBuilder {
diff --git a/ext/v8/v8.cc b/ext/v8/v8.cc
index 43bfc1c..f6e9a80 100644
--- a/ext/v8/v8.cc
+++ b/ext/v8/v8.cc
@@ -6,7 +6,8 @@ void V8::Init() {
   ClassBuilder("V8").
     defineSingletonMethod("IdleNotification", &IdleNotification).
     defineSingletonMethod("SetCaptureStackTraceForUncaughtExceptions", &SetCaptureStackTraceForUncaughtExceptions).
-    defineSingletonMethod("GetHeapStatistics", &GetHeapStatistics);
+    defineSingletonMethod("GetHeapStatistics", &GetHeapStatistics).
+    defineSingletonMethod("GetVersion", &GetVersion);
 }
 
 VALUE V8::IdleNotification(int argc, VALUE argv[], VALUE self) {
@@ -30,4 +31,7 @@ VALUE V8::GetHeapStatistics(VALUE self, VALUE statistics_ptr) {
   Void(v8::V8::GetHeapStatistics(HeapStatistics(statistics_ptr)));
 }
 
+VALUE V8::GetVersion(VALUE self) {
+  return rb_str_new2(v8::V8::GetVersion());
+}
 }
\ No newline at end of file
diff --git a/spec/c/constants_spec.rb b/spec/c/constants_spec.rb
index 52c9391..538ed19 100644
--- a/spec/c/constants_spec.rb
+++ b/spec/c/constants_spec.rb
@@ -13,4 +13,8 @@ describe V8::C do
     V8::C::Value::Empty.should_not be_nil
     V8::C::Value::Empty.should be V8::C::Value::Empty
   end
+
+  it "can access the V8 version" do
+    V8::C::V8::GetVersion().should match /^3\.10/
+  end
 end
\ No newline at end of file