From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 4 Dec 2012 10:28:24 +0000 (+0200)
Subject: Restore the check to avoid deletion if an add call fails
X-Git-Url: http://git.tdb.fi/?p=libs%2Fdatafile.git;a=commitdiff_plain;h=2f73f948cd2f4bb0bdcc0f5f81816fb169819879

Restore the check to avoid deletion if an add call fails

It was lost to a careless rewrite in b1bc256.
---

diff --git a/source/collection.h b/source/collection.h
index 2243715..6e6900c 100644
--- a/source/collection.h
+++ b/source/collection.h
@@ -102,7 +102,17 @@ public:
 		if(!item)
 			throw std::invalid_argument("Collection::add(item)");
 
-		insert_unique(items, name, RefPtr<typename RemoveConst<T>::Type>(item));
+		RefPtr<typename RemoveConst<T>::Type> ptr(item);
+		try
+		{
+			insert_unique(items, name, ptr);
+		}
+		catch(...)
+		{
+			// Avoid deleting the object
+			ptr.release();
+			throw;
+		}
 	}
 
 	/// Gets a typed object from the collection.
@@ -444,8 +454,8 @@ public:
 		RefPtr<T> obj = new T;
 		Collection::ItemLoader<T> ldr(*obj, coll);
 		ldr.load(parser);
-		// Collection::add will delete the object if it fails
-		coll.add(name, obj.release());
+		coll.add(name, obj.get());
+		obj.release();
 	}
 };