[vala] Clear array ouptut parameters

[Jürg Billeter <juergbi src gnome org>]

commit f23f243cf2a250a01666aa7a88b5d21d7073cb29
Author: Jürg Billeter <j bitron ch>
Date:   Tue Feb 23 20:13:26 2010 +0100

    Clear array ouptut parameters

 codegen/valaccodemethodmodule.vala |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/codegen/valaccodemethodmodule.vala b/codegen/valaccodemethodmodule.vala
index e83eb84..f7b30ae 100644
--- a/codegen/valaccodemethodmodule.vala
+++ b/codegen/valaccodemethodmodule.vala
@@ -531,15 +531,18 @@ internal class Vala.CCodeMethodModule : CCodeStructModule {
 						break;
 					}
 
-					var t = param.parameter_type.data_type;
-					if (t != null && t.is_reference_type ()) {
-						if (param.direction != ParameterDirection.OUT) {
+					if (param.direction != ParameterDirection.OUT) {
+						var t = param.parameter_type.data_type;
+						if (t != null && t.is_reference_type ()) {
 							var type_check = create_method_type_check_statement (m, creturn_type, t, !param.parameter_type.nullable, get_variable_cname (param.name));
 							if (type_check != null) {
 								type_check.line = function.line;
 								cinit.append (type_check);
 							}
-						} else if (!m.coroutine) {
+						}
+					} else if (!m.coroutine) {
+						var t = param.parameter_type.data_type;
+						if ((t != null && t.is_reference_type ()) || param.parameter_type is ArrayType) {
 							// ensure that the passed reference for output parameter is cleared
 							var a = new CCodeAssignment (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, get_variable_cexpression (param.name)), new CCodeConstant ("NULL"));
 							var cblock = new CCodeBlock ();