[vala] girwriter: Don't add target for delegates without target

[Luca Bruno <lucabru src gnome org>]

commit 978d0fa6ae0231ffdeb1cc8115ecb367992affbd
Author: Will Szumski <will cowboycoders org>
Date:   Mon Feb 24 15:03:24 2014 +0000

    girwriter: Don't add target for delegates without target
    
    Fixes bug 725073.

 codegen/valagirwriter.vala |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/codegen/valagirwriter.vala b/codegen/valagirwriter.vala
index f6da0ad..f3d5100 100644
--- a/codegen/valagirwriter.vala
+++ b/codegen/valagirwriter.vala
@@ -814,12 +814,14 @@ public class Vala.GIRWriter : CodeVisitor {
                        var int_type = new IntegerType (CodeContext.get ().root.scope.lookup ("int") as 
Struct);
                        write_param_or_return (int_type, true, ref index, has_array_length, 
"%s_length1".printf (name), null, direction);
                } else if (type is DelegateType) {
-                       var data_type = new PointerType (new VoidType ());
-                       write_param_or_return (data_type, true, ref index, false, "%s_target".printf (name), 
null, direction);
                        var deleg_type = (DelegateType) type;
-                       if (deleg_type.is_disposable ()) {
-                               var notify_type = new DelegateType (CodeContext.get ().root.scope.lookup 
("GLib").scope.lookup ("DestroyNotify") as Delegate);
-                               write_param_or_return (notify_type, true, ref index, false, 
"%s_target_destroy_notify".printf (name), null, direction);
+                       if (deleg_type.delegate_symbol.has_target) {
+                               var data_type = new PointerType (new VoidType ());
+                               write_param_or_return (data_type, true, ref index, false, "%s_target".printf 
(name), null, direction);
+                               if (deleg_type.is_disposable ()) {
+                                       var notify_type = new DelegateType (CodeContext.get 
().root.scope.lookup ("GLib").scope.lookup ("DestroyNotify") as Delegate);
+                                       write_param_or_return (notify_type, true, ref index, false, 
"%s_target_destroy_notify".printf (name), null, direction);
+                               }
                        }
                }
        }