From 348a6d9ca1a9b3838ff8c6da5050f61b2c74d010 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 29 Sep 2012 02:01:34 +0300
Subject: [PATCH] Throw an exception if a future object couldn't be created

---
 source/collection.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/source/collection.h b/source/collection.h
index 9f5ddfc..c83b437 100644
--- a/source/collection.h
+++ b/source/collection.h
@@ -485,7 +485,10 @@ T &Collection::get(const std::string &name)
 		if((*j)->can_create() && (*j)->check_type<NCT>())
 			(*j)->create_item(*this, name);
 
-	return *get_item(items, name).value<RefPtr<NCT> >();
+	NCT *ptr = get_item(items, name).value<RefPtr<NCT> >().get();
+	if(!ptr)
+		throw key_error(typeid(ItemMap));
+	return *ptr;
 }
 
 template<typename T>
-- 
2.43.0