Add support for creation methods with a different (mostly super) type than

2008-07-09  Raffaele Sandrini  <raffaele@sandrini.ch>

	* gobject/valaccodegenerator.vala:
	* gobject/valaccodemethodbinding.vala:
	* vala/valacreationmethod.vala:
	* vala/valainterfacewriter.vala:
	* vapigen/valagidlparser.vala:

	Add support for creation methods with a different (mostly super) type
	than the type of the object it creates. Add a `type' parameter to the
	CCode attribute which will be used to get the casts right for such
	creation methods.

	* vapi/gio-2.0.vapi:
	* vapi/gtk+-2.0.vapi:

	Regenerated, fixes bug 540661

svn path=/trunk/; revision=1688

1 files changed, 9 insertions, 0 deletions

diff --git a/vapigen/valagidlparser.vala b/vapigen/valagidlparser.vala
index c97d87d90..2b39443f2 100644
--- a/vapigen/valagidlparser.vala
+++ b/vapigen/valagidlparser.vala
@@ -1257,6 +1257,15 @@ public class Vala.GIdlParser : CodeVisitor {
 			} else if (m.name.has_prefix ("new_")) {
 				m.name = m.name.offset ("new_".len ());
 			}
+			// For classes, check whether a creation method return type equals to the
+			// type of the class created. If the types do not match (e.g. in most
+			// gtk widgets) add an attribute to the creation method indicating the used
+			// return type.
+			if (current_data_type is Class && res != null) {
+				if ("%s*".printf (current_data_type.get_cname()) != res.type.unparsed) {
+					((CreationMethod)m).custom_return_type_cname = res.type.unparsed;
+				}
+			}
 		} else {
 			m = new Method (name, return_type, current_source_reference);
 		}