Index: src/SynTree/Expression.h
===================================================================
--- src/SynTree/Expression.h	(revision 665f43269c6958cbb65487dbaac9e440b9cd5815)
+++ src/SynTree/Expression.h	(revision 2cd949bdf646e348c3d82fdbc4bc3da895676621)
@@ -231,5 +231,11 @@
 	enum Target {
 		Coroutine, Thread, Monitor, NUMBER_OF_TARGETS
-	} target;
+	};
+	struct Concrete {
+		std::string field;
+		std::string getter;
+	};
+	Target target;
+	Concrete concrete_target;
 
 	KeywordCastExpr( Expression * arg, Target target );