[vala] girwriter: Set scope for callback parameters of async methods

[Jürg Billeter <juergbi src gnome org>]

commit 55ab304a9954dc280174dad8eb94aee4ea0a425b
Author: Jürg Billeter <j bitron ch>
Date:   Tue Mar 29 11:53:28 2011 +0200

    girwriter: Set scope for callback parameters of async methods

 codegen/valagirwriter.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/codegen/valagirwriter.vala b/codegen/valagirwriter.vala
index 1776767..8c5d352 100644
--- a/codegen/valagirwriter.vala
+++ b/codegen/valagirwriter.vala
@@ -980,6 +980,10 @@ public class Vala.GIRWriter : CodeVisitor {
 			if (type.value_owned) {
 				buffer.append_printf (" destroy=\"%i\"", closure_index + 1);
 			}
+
+			if (delegate_type.is_called_once) {
+				buffer.append (" scope=\"async\"");
+			}
 		}
 
 		buffer.append_printf (">\n");