[gobject-introspection] Add Regress method for a closure taking and returning a GVariant

[Martin Pitt <martinpitt src gnome org>]

commit f45b703af3868136eedf66b54dd326b62c10e900
Author: Martin Pitt <martin pitt ubuntu com>
Date:   Fri Aug 12 09:57:41 2011 +0200

    Add Regress method for a closure taking and returning a GVariant

 tests/scanner/Regress-1.0-expected.gir |   17 +++++++++++++++++
 tests/scanner/regress.c                |   32 ++++++++++++++++++++++++++++++++
 tests/scanner/regress.h                |    1 +
 3 files changed, 50 insertions(+), 0 deletions(-)
---
diff --git a/tests/scanner/Regress-1.0-expected.gir b/tests/scanner/Regress-1.0-expected.gir
index a85f38b..a19969e 100644
--- a/tests/scanner/Regress-1.0-expected.gir
+++ b/tests/scanner/Regress-1.0-expected.gir
@@ -1807,6 +1807,23 @@ call and can be released on return.</doc>
         </parameter>
       </parameters>
     </function>
+    <function name="test_closure_variant"
+              c:identifier="regress_test_closure_variant">
+      <return-value transfer-ownership="full">
+        <doc xml:whitespace="preserve">the return value of @closure</doc>
+        <type name="GLib.Variant" c:type="GVariant*"/>
+      </return-value>
+      <parameters>
+        <parameter name="closure" transfer-ownership="none">
+          <doc xml:whitespace="preserve">GClosure which takes one GVariant and returns a GVariant</doc>
+          <type name="GObject.Closure" c:type="GClosure*"/>
+        </parameter>
+        <parameter name="arg" transfer-ownership="none">
+          <doc xml:whitespace="preserve">a GVariant passed as argument to @closure</doc>
+          <type name="GLib.Variant" c:type="GVariant*"/>
+        </parameter>
+      </parameters>
+    </function>
     <function name="test_date_in_gvalue"
               c:identifier="regress_test_date_in_gvalue">
       <return-value transfer-ownership="full">
diff --git a/tests/scanner/regress.c b/tests/scanner/regress.c
index 220bc12..c6608f4 100644
--- a/tests/scanner/regress.c
+++ b/tests/scanner/regress.c
@@ -213,6 +213,38 @@ regress_test_closure_one_arg (GClosure *closure, int arg)
 }
 
 /**
+ * regress_test_closure_variant:
+ * @closure: GClosure which takes one GVariant and returns a GVariant
+ * @arg: (transfer none): a GVariant passed as argument to @closure
+ *
+ * Return value: (transfer full): the return value of @closure
+ */
+GVariant*
+regress_test_closure_variant (GClosure *closure, const GVariant* arg)
+{
+  GValue return_value = {0, };
+  GValue arguments[1] = {{0,} };
+  int ret;
+
+  g_value_init (&return_value, G_TYPE_VARIANT);
+
+  g_value_init (&arguments[0], G_TYPE_VARIANT);
+  g_value_set_variant (&arguments[0], arg);
+
+  g_closure_invoke (closure,
+                    &return_value,
+                    1, arguments,
+                    NULL);
+
+  ret = g_value_get_variant (&return_value);
+
+  g_value_unset (&return_value);
+  g_value_unset (&arguments[0]);
+
+  return ret;
+}
+
+/**
  * regress_test_value_arg:
  * @v: (transfer none): a GValue expected to contain an int
  *
diff --git a/tests/scanner/regress.h b/tests/scanner/regress.h
index f3c3687..04ebe29 100644
--- a/tests/scanner/regress.h
+++ b/tests/scanner/regress.h
@@ -116,6 +116,7 @@ GHashTable *regress_test_ghash_nested_everything_return2 (void);
 /* closure */
 int regress_test_closure (GClosure *closure);
 int regress_test_closure_one_arg (GClosure *closure, int arg);
+GVariant *regress_test_closure_variant (GClosure *closure, const GVariant* arg);
 
 /* value */
 int regress_test_int_value_arg(const GValue *v);