X-Git-Url: http://git.tdb.fi/?p=libs%2Fdatafile.git;a=blobdiff_plain;f=source%2Fcollection.h;h=612a0af01879deaac213f1883db29df76d3cd57d;hp=5f0650c6761043977e85a33e55c6854d25b1703f;hb=5e677b2b3eeb2b3c41216a329f7b1363aade0aed;hpb=7feeeacf8fa3eae889cb256c42ada615c4761eec

diff --git a/source/collection.h b/source/collection.h
index 5f0650c..612a0af 100644
--- a/source/collection.h
+++ b/source/collection.h
@@ -83,7 +83,7 @@ public:
 private:
 	typedef std::map<std::string, Variant> ItemMap;
 	typedef std::list<CollectionItemTypeBase *> TypeList;
-	typedef std::list<CollectionSource *> SourceList;
+	typedef std::list<const CollectionSource *> SourceList;
 
 	TypeList types;
 	ItemMap items;
@@ -255,13 +255,16 @@ private:
 	template<typename T>
 	CollectionItemTypeBase *get_type() const;
 
+	/// Gets a descriptor with the same type as another descriptor.
+	CollectionItemTypeBase *get_type(const CollectionItemTypeBase &) const;
+
 	/// Returns the descriptor for an item, or null if it's of an unknown type.
 	CollectionItemTypeBase *get_type_for_item(const Variant &) const;
 
 protected:
 	/** Adds a source for automatically loading items.  Sources are consulted
 	in the order they are added. */
-	void add_source(CollectionSource &);
+	void add_source(const CollectionSource &);
 
 public:
 	/** Opens a raw resource, without interpreting it as object data.  Null is
@@ -380,7 +383,7 @@ private:
 		Creator(FuncPtr f): func(f) { }
 
 		virtual T *create(Collection &coll, const std::string &name) const
-		{ return (static_cast<C &>(coll).*func)(name); }
+		{ return (dynamic_cast<C &>(coll).*func)(name); }
 	};
 
 	template<typename B>