X-Git-Url: http://git.tdb.fi/?p=libs%2Fdatafile.git;a=blobdiff_plain;f=source%2Fobjectloader.h;h=f1cb6ffe051c5f8405fa652a67d36b3001dee380;hp=bab1ce5378f5bce344fd931d80061b6a67af9698;hb=302f73123da1194dd91b43138cd880cae9318a14;hpb=0e1271599dcb9f91952657e90ea8901dd5520cae

diff --git a/source/objectloader.h b/source/objectloader.h
index bab1ce5..f1cb6ff 100644
--- a/source/objectloader.h
+++ b/source/objectloader.h
@@ -1,11 +1,18 @@
 #ifndef MSP_DATAFILE_OBJECTLOADER_H_
 #define MSP_DATAFILE_OBJECTLOADER_H_
 
+#include <typeinfo>
 #include "loader.h"
 
 namespace Msp {
 namespace DataFile {
 
+class no_collection: public std::runtime_error
+{
+public:
+	no_collection(const std::type_info &);
+};
+
 class Collection;
 
 /**
@@ -47,7 +54,7 @@ public:
 	C &get_collection() const
 	{
 		if(!coll)
-			throw InvalidState("No collection");
+			throw no_collection(typeid(O));
 		return *coll;
 	}
 };