From 52fb8562d6b9bc793f7a621d37b0d63105faa555 Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <zmike@osg.samsung.com>
Date: Wed, 13 May 2015 18:54:19 -0400
Subject: [PATCH] add embedding macro for checking pointer existence

needed for determining whether an interface or callback has been provided
---
 ports/cef/macros.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ports/cef/macros.rs b/ports/cef/macros.rs
index f498769e6c9..908fd8cc8a8 100644
--- a/ports/cef/macros.rs
+++ b/ports/cef/macros.rs
@@ -4,6 +4,13 @@
 
 #![macro_use]
 
+
+macro_rules! check_ptr_exist {
+    ($var:expr, $member:ident) => (
+        unsafe { (*CefWrap::to_c($var)).$member.is_some() }
+    );
+}
+
 // Provides the implementation of a CEF class. An example follows:
 //
 //    struct ServoCefThing {