[valadoc] Add support for unowned/weak array elements

[Florian Brosch <flobrosch src gnome org>]

commit 0e166c04eb66137bc2b8ed69388f3fc620298e4d
Author: Florian Brosch <flo brosch gmail com>
Date:   Sat Aug 30 22:35:52 2014 +0200

    Add support for unowned/weak array elements

 src/libvaladoc/api/array.vala |   23 +++++++++++++++++++----
 1 files changed, 19 insertions(+), 4 deletions(-)
---
diff --git a/src/libvaladoc/api/array.vala b/src/libvaladoc/api/array.vala
index ef2a1d4..cfbd642 100644
--- a/src/libvaladoc/api/array.vala
+++ b/src/libvaladoc/api/array.vala
@@ -43,13 +43,28 @@ public class Valadoc.Api.Array : Item {
                this.parent = parent;
        }
 
+       private inline bool element_is_owned () {
+               TypeReference reference = data_type as TypeReference;
+               if (reference == null) {
+                       return true;
+               }
+
+               return !reference.is_unowned && !reference.is_weak;
+       }
+
        /**
         * { inheritDoc}
         */
        protected override Inline build_signature () {
-               return new SignatureBuilder ()
-                       .append_content (data_type.signature)
-                       .append ("[]", false)
-                       .get ();
+               SignatureBuilder builder = new SignatureBuilder ();
+               if (element_is_owned ()) {
+                       builder.append_content (data_type.signature);
+               } else {
+                       builder.append ("(", false);
+                       builder.append_content (data_type.signature, false);
+                       builder.append (")", false);
+               }
+               builder.append ("[]", false);
+               return builder.get ();
        }
 }