Fix flow analysis for reference transfer expressions

diff --git a/vala/valareferencetransferexpression.vala b/vala/valareferencetransferexpression.vala
index 29c522e55990adde1d7d73fac994039bdf3530ef..cd2f154197d54b69f1e409192394d6e5e3d69b41 100644 (file)
--- a/vala/valareferencetransferexpression.vala
+++ b/vala/valareferencetransferexpression.vala
@@ -117,9 +117,23 @@ public class Vala.ReferenceTransferExpression : Expression {
 
        public override void get_defined_variables (Collection<Variable> collection) {
                inner.get_defined_variables (collection);
+               var local = inner.symbol_reference as LocalVariable;
+               var param = inner.symbol_reference as Parameter;
+               if (local != null) {
+                       collection.add (local);
+               } else if (param != null && param.direction == ParameterDirection.OUT) {
+                       collection.add (param);
+               }
        }
 
        public override void get_used_variables (Collection<Variable> collection) {
                inner.get_used_variables (collection);
+               var local = inner.symbol_reference as LocalVariable;
+               var param = inner.symbol_reference as Parameter;
+               if (local != null) {
+                       collection.add (local);
+               } else if (param != null && param.direction == ParameterDirection.OUT) {
+                       collection.add (param);
+               }
        }
 }